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Home My WebLink About03254 - Technical Information Report � � � ,�1�� . � � Technical Information Report i Plat of Windstone II Mt. Baker Avenue N.E. at N.E. 17th Street King County, Washington Prepared for: KBS III, LLC ' � ��'�7 - ��, 12320 N.E. 8th Street, Suite 100 � .�� c�� ' Bellevue, WA 98005 �L �,w�- :s ,. �� ^l :;�1 r I ,<Q' j'�� C� vi t f i •� ` � ��• ` � -: � � September 28, 2004 :�� ' Revised March 24, 2005 EY� - :Ot��t Revised May 16, 2005 Our Job No. 11444 RECEIVED - JJN 2 2 2� ;JSTOi�1�`R SERVIC'' i ,r� �HA V Q- � S � CIVIL ENGINEERING, LAND PLANNING, SURVEYING, ENVIRONMENTAL SERVICES i � �� ? 18215 72ND AVENUE SOUTH KE►vT,WA 98032 (425)251-6222 (425) 251-8782 Fax °y i BRANCH OFFICES ♦ OLYMPIA,WA ♦ TEMECULA, CA ♦ WALNUT CREEK, CA '' www.barghausen.com o� pe' T �� G ENG1N TABLE OF CONTENTS � 1.0 PROJECT OVERVIEW Figure 1 —Technical Information Report(TIR)Worksheet Figure 2—Vicinity Map Figure 3—Drainage Basins, Subbasins, and Site Characteristics Figure 4—Soils 2.0 CONDITIONS AND REQUIItEMENTS SUMMARY 3.0 OFF-SITE ANALYSIS 4.0 FLOW CONTROL AND WATER QUALITY FACILITY ANALYSIS AND DESIGN A. Existing Site Hydrology B. Developed Site Hydrology C. Performance Standards D. Flow Control System E. Water Quality System 5.0 CONVEYANCE SYSTEM ANALYSIS AND DESIGN 6.0 SPECIAL REPORTS AND STUDIES 7.0 OTHER PERMITS 8.0 ESC ANALYSIS AND DESIGN 9.0 BOND QUANTITIES,FACII.ITY SUMMARIES, AND DECLARATION OF COVENANT 10.0 OPERATIONS AND MAINTENANCE MANUAL 11�3.006.doc[JPJ/tep] � w � ��/ lil W � O N V W ti O � a 0 � 1. PROJECT OVERVIEW The project site is approximately 3.63 acres in size and was recently annexed into the City of Renton. The site abuts 148th Avenue S.E. (180 lineal feet) and is adjacent to the plat of Stoneridge. It is located within a portion of Section 3, Township 23 North, Range 5 East, Willamette Meridian, King County, Washington. More particularly, the site is located north of SR-90(}, west of 148th Avenue S.E. Please see the attached Figure 2—Vicinity Map for an exact location of the project site. The property has a Type 3 Wetland along the west property line and a Type 3 Seasonal Stream along the east and northeast portions of the property. The site slopes in a northwesterly direction, with an average slope of approximately 10 to 12 percent. The site was logged several years ago and is now overgrown with small alder saplings. There is an abandoned house on the project site, which is proposed to be demolished. The project site is zoned R-5 (ResidentiaUFive Dwelling Units Per Acre), which requires a minimum lot area of 7,250 square feet, with a minimum lot width of 60 feet. There are 9 lots proposed for this development that meet or exceed the zoning requirements. Lots 8 and 9 will gain primary access from 148th Avenue S.E. We are proposing a 12-foot right-of-way dedication along 148th Avenue S.E. for futwe road improvements. The project site provides the appropriate buffers from the Type 3 Wetland and Seasonal Stream, with the appropriate 25-foot building setback (BSBL). Utilities for the site will come through the proposed plat of Stoneridge from Mt. Baker Ave. N.E. This will provide water, sewer, partial storm, and dry utilities. The proposal for this development is to collect runoff from Lots I through 7, 2 lots from the Stoneridge plat, and Mt. Baker Ave. N.E. by a typical catch basin collection and pipe conveyance system that will drain into a weddetention vault located in the northeast comer of the property. Runoff from Lots 8 and 9 and the frontage improvements to 148th Avenue S.E. will be collected in a similar fashion as describe previously, but drain into a wet vault located in the northeast corner of the property. Both systems will perform water quality as well as flow control, meeting the requirements of King County as well as the City of Renton, which has adopted the 1998 King County, Washington Surface Water Design Manual (KCSWDM). The requirements for this project site are to provide Basic Water Quality and Level 3 Flow Control due to downstream problems. Please refer to the Section 3.0 =Off-Site Analysis for a complete description of the downstream drainage course and problems associated with it. 11�.006.doc[1PJ/teP1 FIGURE 1 TECHNICAL INFORMATION REPORT TIR WORKSHEET � ) i ,.-- King County Department of Development and Environmental Services TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Part 1 PROJECT OWNER AND PROJECT ENGINEER Part 2 PROJECT LOCATION AND DESCRIPTION Project Owner KBS III,LLC Project Name ,4ddress 12320 N.E. 8th Street, Suite 100 Prelimina Plat of Windstone II Bellewe,WA 98005 �ocation ' Phone Township 23 North Project Engineer Ali Sadr Range 5 East Company Bar hausen Consultin En ineers,Inc. Section 3 Address/Phone 18215—72nd Avenue South Section Kent,WA 98032/(425)251-6222 Part 3 TYPE OF PERMIT APPLICATION Part 4 OTHER REVIEWS AND PERMITS ❑ Subdivision HPA ❑ DFW HPA ❑ Shoreline Management � Short Subdivision ❑ COE 404 � Rockery � Grading ❑ DOE Dam Safety � Structural Vaults ❑ Commercial ❑ FEMA Floodplain ❑ Other � Other Buildin ❑ COE Wetlands Part 5 SITE COMMUNfTY AND DRAINAGE BASIN Community Renton Drainage Basin Ma Creek Part 6 SITE CHARACTERISTICS ❑ River ❑ Floodplain � Stream Greene's Creek � Wetlands � ❑ Critical Stream Reach ❑ Seeps/Springs I ❑ Depressions/Swales ❑ High Groundwater Table ❑ Lake ❑ Groundwater Recharge ❑ Steep Slopes ❑ Other -1- 1144d.006.doc[JPJ/tep] �art 7 SOILS Soil Type Slopes Erosion Potentiai Erosive Velocities Alderwood 10 to 12 percent ❑ Additional Sheets Attached Part 8 DEVELOPMENT LIMITATIONS REFERENCE LIMITATION/SITE CONSTRAINT p Downstream problem Leve13 Flow Control ❑ � ' ❑ ❑ Additional Sheets Attached Part 9 ESC REQUIREMENTS MINIMUM ESC REQUIREMENTS MINIMUM ESC REQUIREMENTS l DURING CONSTRUCTION AFTER CONSTRUCTION �� Sedimentation Facilities � Stabilize Exposed Surface � Stabilized Construction Entrance � Remove and Restore Temporary ESC Facilities � Perimeter Runoff Control � Clean and Remove All Silt and Debris ' ❑ Clearing and Grading Restrictions � Ensure Operation of Permanent Facilities � Cover Practices � Flag Limits of SAO and Open Space Preservation Areas � Construction Sequence ❑ Other ❑ Other ��I Part 10 SURFACE WATER SYSTEM I, ❑ Grass Lined Channel ❑ Tank ❑ Infiltration Method of Analysis I � Pipe System � Vault ❑ Depression KCRTS ❑ Open Channel ❑ Energy Dissipater ❑ Flow Dispersal Compensation/Mitigation ❑ Dry Pond � Wetland ❑ Waiver of Eliminated Site Storage �, ❑ Wet Pond � Stream ❑ Regional Detention Level 3 � iCatch basin collection to pipe conveyance to separate weddetention vaul[ Brief Description of System Operation s stems. Facility Related Site Limitations ` Reference Faciliry Limitation -2- 11414.006.doc[JPJ/tepl �I . Part 11 STRUCTURAL ANALYSIS Part 12 EASEMENTSlTRACTS ❑ Cast in Place Vault � Drainage Easement ❑ Retaining Wall � Access Easement � Rockery>4'High ❑ Native Growth Protection Easement ❑ Structural on Steep Slope � Tract ❑ Other ❑ Other Part 13 SIGNATURE OF PROFESSfONAL ENGINEER I,or a civil engineer under my supervision,have visited the site. Actual site conditions as observed were incorporated into this worksheet and the attachments. To the best of my knowledge the information provided here is accurate. � -/ (�- �� Si ned/Dated -3- I 1414.006.doc(JPJ/tepl � � N -�-� � � � � � Z w � � � .'� _�P,� _ �,,,�' �; , _ ti � T1> _ � >;; � 3 ' '� � ; � , �.��.,�. 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M' < "��^"� ",�•• �' h F� 1 P�{' �+ � � �� r�"�� ,�fS��il�y f 1 , s' :,'� "� t t�� yr��4 ay o . r,rP� �". H* yQ '� � b; S$�'�., '�� "��. W 'k�,'' ..— _ .–=�' • :�t� a , , �"° ��4� K�i�� --� -d' . g�� `� J Q � I �� ,�o� � Q1IDE TO MAPPING UNITS For a full description of a mapping w►it, read both the description of the mapping tmit and that of the s oil series to which the mapping tmit belongs. See table 6, page 70, for descriptions of woodland groups. Other information is given in tables as follows: ; Acreage and extent, table 1, page 9. Tawn and country planning, table 4, page 57. " Hngineering uses of the soils, tables 2 and 3, Recreational uses, table S, page 64. pages 36 through 55. Fstimated yields, table 7, page 79. Woodland Described Capability imit group Map on syaibol Mapping unit page Symbol Page Symbol Ag8 Aldexwood gravelly sandy loam, 0 to 6 percent slopes---------- 10 IVe-2 76 3d2 AgC Aldenvood gravelly sandy loam, 6 to 15 percent slopes--------- 8 IVe-2 76 3d1 AgD Aldenvood �avelly sandy loam, 15 to 30 percent slopes----1' 10 VIe-2 78 3d1 AkF Aldeiwood and Kitsap soils, very steep------------------------ 10 VIIe-1 78 2d1 AmB Arents, Alden+rood material, 0 to 6 percent slopes 1/---------- 10 Ne-2 76 3d2 AmC Arents, Aldenvood material, 6 to 15 percent slopes 1/--------- 10 IVe-2 76 3d2 An Arents, Everett material 1/---------------------------------- 11 IVs-1 77 3f3 BeC Beausite gravelly sandy loam, 6 to 15 percent siopes---------- 11 IVe-2 76 3d2 BeD Beausite gravelly sandy loam, 15 to 30 percent slopes--------- 12 VIe-2 78 3d1 BeF Beausite gravelly sandy loam, 40 to 75 percent slopes--------- !2 VIIe-1 78 3d1 Bh Bellin�am silt loam------------------------------------------ 12 IIIw-2 76 3w2 Br Briscot silt loam--------------------------------------------- 13 IIw-2 75 3w1 Bu Buckley silt loam----=---------------------------------------- 13 IIIw-2 76 4w1 (b Coastal beaches----------------------------------------------- 14 VIIIw-1 78 --- Ea Earlmont silt loam-------------------------------------------- 14 IIw-2 75 3w2 Ed Edgewick fine sandy loam-------------------------------------- 15 IIIw-1 75 201 EvB Everett gravelly sandy loam, 0 to 5 percent slopes------------ 15 Ns-1 77 3f3 EvC Everett gravelly sandy loam, 5 to 15 percent slopes----------- 26 VIs-1 78 3fg EvD Everett gravelly sandy loam, IS to 30 percent slopes---------- 16 Vle-1 77 3f2 BaC 'Everett-Alde naood gravelly sandy loams, 6 to 15 percent slope5------------------------------------------------------ l6 VIs-1 78 3f3 InA Indianola loamy fine sand, 0 to 4 percent slopes-------------- 17 IVs-2 77 4s3 InC Indianola loamy fine sand, 4 to 15 percent slopes------------- 16 Ns-2 77 4s3 �InD Indianola loamy fine sand, l5 to 30 percent slopes------------ 17 VIe-1 76 4s2 KpB Kitsap silt loam, 2 to 8 percent slopes----------------------- 17 IIIe-1 75 2d2 KpC Kitsap silt loam, 8 to 15 percent slapes---------------------- 18�- IVe-1 76 2d2 KpU Kitsap silt loam, 15 to 30 percent slopes--------------------- 18 Vie-2 78 2d1 KsC Klaus gravelly loamy sand, 6 to 15 percent slopes------------- 18 VIs-1 78 3f1 Ma Mixed allwial land=------------------------------------------ 18 VIw-2 78 201 NeC Neilton very gravelly loamy sand, 2 to 15 percent slopes------ 19 VIs-1 78 3f3 Ng Newberg silt loam--------------------------------------------- 19 IIw-1 74 201 T8c Flooksack silt loam------------------------------------------- 20 IIw-1 74 201 No Noima sandy loam---------------------------------------------- 20 IIIw-3 76 3w2 Or Orcas peat---------------------------------------------------- 2l VIIIw-1 78 --- Os Oridia silt loam---------------------------------------------- 21 IIw-2 75 3w1 OvC Ovall gravelly loam, 0 to 15 percent slopes------------------- 22 IVe-2 76 3d1 OvD Ovall gravelly loam, 15 to 25 percent slopes------------------ 23 VIe-2 78 3d1 OvF Ovall gravelly loam, 40 to 75 percent slopes------------------ 23 VIIe-1 78 3d1 Pc Pilchuck loamy fine sand-------------------------------------- 23 VIw-1 78 2s1 Pk Pilchuck fine sandy loam-------------------------------------- 23 IVw-1 76 2s1 ' Pu Puget silty clay loam----------------------------------------- 24 IIIw-2 76 3w2 � -�"i�y Puyallup fine sandy loam-------------------------------------- 24 IIw-1 74 201 RaC Ragnar fine sandy loam, 6 to 15 percent slopes---------------- 25 IVe-3 77 4s1 RaD Ragnar fine sandy loam, 15 to 25 percent slopes--------------- 26 YIe-2 78 4s1 � RdC Ragnar-Indianola association, sloping: 1/---------------------- 26 -------- -- --- Ragnar soi2--------------------------------------------- -- IVe-3 77 4s1 Indianola soil------------------------------------=------ -- IVs-2 77 4s3 RdE Ragnar-Indianola association, moderately steep: 1/------------ 26 -------- -- --- Ragnar soil--------------------------------------------- -- VIe-2 78 4s1 Indianola soi1------------------------------------------- -- VIe-1 77 4s2 � � � U. 5. (7pVfiRNMENT PRINTING OFFICE:IY77 O-488-388 GUIDE TO MAPPING UNITS--Continued � ' , Woodland Described Capability unit group 1 Map � an ;bol Mapping �mit page Symbol Page Symbol Re Renton silt loam------------------------------------------=- 26 IIIw-1 75 3w1 I8i Rivenvash--------------------------------------------------- 27 VIIIw-1 78 --- Sa Salal silt loan--------------------------------------------- 27 IIw-1 74 201 Sh Sammamish silt loa�----------------------------------------- 27 IIw-2 75 3w1 SkSeattle �auck----------------------------------------==------ 28 IIw-3 75 --- Sm Shalcar muck------------------------------------------------ 29 IIw-3 75 --- Sn Si silt loam------------------------------------------------ 29 IIw-1 74 201 So Snohomish silt loam----------------------------------------- 30 IIw-2 75 3w2 Sr Snohomish silt loam, thick surface variant------------------ 31 IIw-2 75 3w2 Su Sultan silt loam-------------------------------------------- 31 IIw-1 74 3w1 � Tukwila �muck----------------------------------------------�- 32 IIw-3 75 --- UrUrban land-------------------=------------------------------ 33 -------- -- --- Wo Woodinville silt loam-------------------------------'-------- 33 IIw-Z 75 3w2 1/ ' 1he composition of these w►its is more variable than that of the others in the Area, but it has been cantrolled well enwgh to interpret for the expected use of the soils. � _�� Z.0 CONDITIONS AND REQUIREMENTS SUMMARY 2.0 CONDITIONS AND REQUIREMENTS SUMMARY ' Analysis of the Eight Core Requirements: Core Requirement No. 1: Discharge at Natural Location. Response: This project is proposing to discharge to the same seasonal stream it currently dces under existing conditions. However, runoff may be modified somewhat with the development of this site splitting flows somewhat between the two streams that drain through the project site in a different fashion than it currently does under existing conditions. The site will still drain to the same stream downstream though. Core Require»ient No. 2: Off-Site Analysis. Response: This project should not have to provide an off-site analysis due to the fact that Level 3 Flow Control is required, which is the most severe flow control required for projects that contribute to areas.prone to flooding. The off-site analysis would provide no more deternunation of required flow control above that; however, an off-site analysis is provided herewith with this project in Section 3.0.—Off-Site Analysis of this Technical Information Report for a review. Core Requirement No. 3: Flow Control. Response: In accordance with the requirements of the City of Renton and King County> Level 3 Flow Control is proposed for this development and will be instituted with the final construction of the plat. Core Requirement No. 4: Conveyance System. Response: In accordance with the KCSWDM and, since the project site consists of less than 10 acres of new development, a rational method of computing runoff to each catch basin may be instituted in the design of the conveyance system draining to the weddetention vaults located in the northern portion of the project site. Core Reguirement No. S.� Erosion and Sediment Control. Response: This project will prevent the transpoR of sediment to streams, wetlands, lakes, drainage system, and adjacent properties through the institution of clearing limits, cover measures, perimeter protection, tra�c area stabilization, sediment retention, and surface water controls,all in accordance with Appendix D of the KCSWDM as adopted by the City of Renton. Core Requirement No. 6: Maintenance of Operations. Response: The drainage facilities on this property will be maintained by the Homeowners' Association and any maintenance and operations requirements of the City will be instituted into the Final Technical Information Report prepared for this development. Core Requirement No. 7: Financial Guarantees and Liability. Response: Any financial guarantees and liability required by the City of Renton will be followed and maintained by this project prior to construction. 11�4.006.doc[JP1/tepl Core Reguirement No. 8: Water Quality. Response: The City of Renton and King County have already indicated that Basic Water Quality is the required water quality methodology for this project, which is being provided in the form of wet vaults located below the live storage in the weUdetention vaults located in the northwest portion of the project, as well as in the northeast portion of the project site. I Analysis of the Five Special Requirements: Special Requirement No. 1: OtherAdoptedArea-Specific Requirements. Response: This project dces not lie within other adopted area-specific requirement areas to the best of our knowledge. Special Reguirement No. 2: Floodplain/Floodway Delineation. Response: In accordance with the requirement, the floodpIain will be designated for the 100-year storm on the project plat. Special Requirement No. 3: Flood Protectiort Facilities. Response: There is no flood protection facility existing nor is on�� r�� .,r �t,;< ��,; �,�� ,�r�� that will have to be designed to conform to the FEMA re�ulations Special Re� Response: KCSWDM and King County Code Se� Special Reqi�i�enze��t ;Vr�. s: Oil Cc»tt�� Response: This project d�s not meet the requirements of a hi�h-use site nor is it a redevelopment project; therefore,the requirement of oil control is not required for this site. The following pages of the report delineate the Stoneridge (Windstone II) Plat final plat requirements as dictated by the City of Renton in a letter to Curtis G. Schuster dated July 24, 2003. 11414.006.doc[JPJltep] � � t � v � i „ ,; CITY OF REN ..11 Planning/Building/PublicWorks Department I lesse Tanner,Mayor Gregg Zimmerman P.E.,Administrator �Sw`5 July 24,2003 � � � Curtis G. Schuster i KBS Develapment Corp. ' 12320 NE 8�'Street ', Suite 100 Bellevue, WA 98005 �' Sub'ect: Stone Rid e Plat- Final Plat Re uirements I J g 9 Dear Mr. Schuster, ' This letter is ro explain the City of Renton's requirements for compliance with the conditions imposed by the King Coun[y Hearing Examiner on the approval of the preliminary plat for the Stone Ridge Plat. Upon annexation by the City of Renton, the final plat must be approved by Renton. It is our i inteni to require compliance with the conditions of the preliminary plat where practical, and to require conformance �vith the intent of conditions that cannot be met exactly as worded. The following is a list of the King County Hearing Examiner conditions of the preliminary plat approval, along with the i, Renton requirement for compliance with each condition for final plat approvaL � I. Compliance with all platting provisions of Tit1e I9 of ihe King Coonty Code. ' Renton Requirement: The applicant shall complete the plat required street, utility and drainage impro��ements per the approved preliminary plat. The applicant shall comply with the requirements of the Renton Subdivision Regulations for final plat approval procedures. Z. Atl persons having an o�imership interest in the subject property shal] sign on ihe face of[he final plat a dedication that includes Ihe Ianguage set forth in King County Couneil I�'Iotion No. 5952. 'I Renton Reqnirement: The applicant shall comply with the requirements of the Renton Subdivision ! Regulations for fna} plat approval procedures. i � 3. The plat sha)1 comply with the base density and minimum density of the R-4 zone classification. All lots shall meet the minimum dimensiona] requirements of ihe R4 zone classification or shall 'I be.generaliy as shown on the face of the approved preliminary plat,except that minor revisions to i the plat that do nat result in substantia} changes may be approved at the discretion of the Depariment of Development and Environmental Services. Any changes to the plat design which ' are mandated by the conditions which follow shall also be pernvtted. Renton Requirement: The applicant shall comply with the condition as written for density and dimension requirements. The applicant sha11 provide a copy of the R-4 zone dimensional requirements with the final plat applica[ion. Minor revisions ro the plat that do not result in sabstantial changes may,be approved at the discretion of the Development Services Division. 4. The applicant must obtain final approval from the King County I-�ealth Department. Existing septic tanks on [he site must be proper}y abandoned prior to final Health Department approval. I O55 South Grady Way-Renlon,Washington 98055 R E N T � N ' AHEAD OF THE CURVE �I This oaoer contains 50°io recvded material.30%oost mnsume� , � ' Public Works. This plan shall be submitted with the application of any building permit. All connections of the drains must be constructed and approved prior to the final building inspection approval. For those lots that are designated for individuaI lot infiltration systems, the systems sha]I be constructed at the time of the building permit and shal} comply with plans on fiie." d) Core Requirement No. I: Discharge ai the Natural Location The applicant has received approval for a requested diversion of surface water flows within the project, under Drainage Adjustment LOOV0062. The conditions of approval of this drainage adjustment shall be satisfied during the design and review of the project engineering plans. e) Core Reguirement No. 3: Runoff ControI. To mitigate for downstream capacity issues, the applicant shall provide Level Three flow control, as outlined in the KCSVYDM. The size of the proposed drainage tract may have to increase to accommodate the r�e�i€�ete�'-st�.��e volumes and water quality facilities. The stormwater facility sha�6e�oCat�"d�.in a separai��act and dedicated to King County, �� . unless portions of the drainage ira��are u�ed for rec�ired�reation space in accordance with ,[� � I�,>..,.,.,..,._,_ � :� KCC2I A.14.180. , � ,.-.. �r��-�. � As specified in Sect�"on�.5�l.�l.bf the K� p roof��a�n�storrr�w�ater shall be infi}trated or dispersed within th� lot are�if��o` art , re f�vorable`' Infiltration of storm water � for bo[h lot areas a�d r dv�ay' � r��P mmei�ded if ternuned to be feasib]e. A geotechnical report s�Il �be' z ��v�uate s�il •�n tions, seasona] depth to groundwater and oi�ier design req��e ,: �ts ��utlined in�'the KC�VDM. t 8e �' - ' 3 .,a.:� .'�T-� . � Core Requirement N� 4 'Conveyance Systems. � As part of the applicarit's submittal for- engineexzng plan Xeview, upstream flows shall be analyzed to determine whet�ier [here �sFadequaEe coi�veya��e capacity in the existing 18-inch CI�9P that crosses norihwest un�ier_148't' Avenue SE-i�to Tract C in the eastern portion of the site. ' g) Core Requirements No. 8: 1Vater Quality. The project is required to meet the basic water qua]ity requirements of the 1998 KCSWDM. h} Special Requirements No. 2_Floodplain Delineation. Because a wetland and t«�o stream are located on the property, a floodplain analysis shall be performed. The 100-year tloodplain boundaries shall be shown on the fina] engineering plans and recorded plat. Renton Requirement: The applicant shall comply with the condition as written. The note on the final plat shall refer to the Renton Planning/Building/Public Works Department instead of the King County agencies_ Please note that the City of Renton dces not assume maintenance responsibilities for the drainage facilities for new subdivisions. The homeowners' association wi11 be responsible for the ownership and maintenance of these facilities. stone ridge final plat letter.doc\ . . � , � 8. The proposed subdivision shall comply with the I993 King County Road Siandards (KCRS): including the f�llowing requuements: ��S �C�► Qpv;} �'(V a� �z � !E�;� oad A shail be improved as an urban nei hborhood ollector betvt�een I48`t' Avenue SE and �� `✓Road ' and as an vrban subcollectar west of Raad C. e desi n of the sub'ect lat shall �-, g l p be modified so that the Iots in the plat will not take individual direct access from the neighborhoocl collector portion of Road A. This modification to the design may result in the relocation of the proposed aIignment of Road A. `f b) Roads C and D,at a minimum, shall be designed to the urban, subaccess street standard. � c ract I all be dedicated as public road right-af-way and improved to the urban, subaccess � street standard. d) 148�'Avenue SE along the frontage of the site shall be improved to the urban callector arterial standard, including provision for a bicycle lane. e)�r�a�t'�I'v�="s�rail be improved as �a�,,��,,,c�v��in �way and shall serve a maximum of two lots Lots 40 and 4l shall h�� iv� ownership�he tract and be responsible for its maintenance. A n�te }�z�c�at�hg��he o�nership g#'"the�:��act and the parties which are responsible for its maintenane� shali�"appear'an,tlie fi�al p�t and engineering plans. As � .��;,, specified in KCRS 3�IC, imp�ovements to the tra�t s�"',irr�lude an I8-foot wide paved surface and a rrumm�rr�,t�aet'`width fe �., Drai�i�g�".co�ol shall include a curb or y� 3� �,, - �t thickened ed e on ope side o�the,�o�i �� _� � ^ .: �:S '}-i_4 ' . • �f ti �''� `i�� 2:.� . �_ k � � Tracts D F and L s t be d�si �� , ��--as priva�e`�es�tracts and shall each serve no more than six lots. The lots se��eac�i�ct shall have und�ided ownership of the tract and be responsible foF its maintenar�e�.��1 note��licating ihe ow�ership of each tract and the parties responsible for each tra�t's maintenance shall ap,�,Year�n,.t �e final plat and engineering plans. . ��- �ti�, �, � Improvements shal} conform�to I�CRS�:03'for ii�ban�it�o,��! oads, which includes a 22- . foot wide paved driving surface�� The cenier}ines of;F-��ts D^and F hall be aligned with the centerlines of Roads D and C, respecttve��+: '`�'h�e ininimum tract width shall be 26 feet with a maximum length of 150 feet. ( g) The width Tract N ay be reduced to 2Q feet. No improvements to this trac[ are required. � h) A temporary turnaround shall be provided at the terminus of Road A. If this turnaround is located off-site, easements shall be deeded to King County to allow for the temporary public use of the tornaround until Road A is extended further north as a public road. i) Street illumination shall be provided at the intersection of Road A with 148`� Avenue SE, a collector arterial,in accordance with KCRS 5.43. j) 148'" Avenue SE along the frontage of the site may require a design for a bus zone and turn �� outs. As specified in KCRS 2.16, the applicant's design engineer shall con[act METRO and the Issaquah School District to determine if a bus zone is needed, and if so the specific design reqvireinents. k) Modification to the above road conditions may be considered by King County, pursuant to the variance procedures in KCRS 1.08. . stone ridgc final plat]etter.doc\ Renton Requirement: The applicant shall comply with the eondition as writien. All construction and upgrading of public and private roads shall be done in accordance with City of Rentori requirements, with the exeeption of street pavement widths for the new streets The n �P V CiTPP1C �an be c netn�terl wi h the pavement widths approved with the preliminary plat The pavement ttuckness rriust be a minimum of 4" of asphalt over 6" of crushed rock. However, iolled curb would not be considered acceptable; therefore, vertical curbs would be required. Rny streets narrower than 32 feet in width must be posted for no par�cing along one side of the street. Any street narrower t an 28 feet must be posted for no parking along both sides of the street. All st'reets within the pIat will be suhject to naming specified by the Development Services Division. Street lighting must be provided to rrreeE the minimum street lighting levels established in Renton Code_ The street iights along the arierial streets must be constructed per City of Renton standards, a�d turned over to the City for ownership and maintenance. The street Iights on the residential streeis can be constructed as a City system,or as a Puget Sound Energy (PSE) system. The maintenance a�d electrical bills to PSE would be the responsibility of the hameowners' association for a PSE system � 9. Boundary Line Adjustment LOOL0089 shall be completed and put into effect through the recording of deeds,prior to the approval of the� neering plans for the subject pIat. � �� . -��"� -�` �_ Renton Requirement: The apphc�i�s�a��Comg.�y with the co�`r'd�ion as ��-itten. _. _ � 10. All utilities within proposgz� rig��,s,of-way must be'include�# wiC�in a franchise approved by the King County Council,pr�r;to final.<pIat recording. , ��.��" �`� � `' �_ <u �_ �' "g.r : r i�'� '�. -�� Renton Requirement. A� util�t�e� w� �n ��t�s�d r� �t-of�va must be a roved b Renton � € �,�, � �? � � Y � PP Y Development Serv�ces�Di� �o� p �a� p�`at�F��arding. Plan. for a)I utilities, including electric, gas, telephone�an�cab�e s 4 ��p�o,Y,ec�by the I)eve�'pr��ent Services Division prior to construction,and the•;construct�a�fk��h�s�ut�l�t�es mvst b�approv�d by a Renton inspector. 3 11. The applicant or subseq^ueni owner sha}1 comply w�th K.ing'�Qunty Code 14:75, Mitiga[ion Payment System (MPS), By pa,�i�ip�t}i�required MPS fee�ri�adm�#�istration fee as determined by the applicable fee ordinance: Tt��`a{�plicanE has the-option €a ei��ier: (1)pay the Iv1PS fee at final plat recording, or(2)pay the Iv�PS f�e at th�-tiine o�but��i�g p�rnvt issuance. If the first option is chosen, the fee paid shall be the fe�-.in effect at the t�m�;�'of plat application and a note shall be .�,��` placed on the face of the plat that read'�;'"AI�`��ees required by King County Code 14.75, , I�4itigation Payment System (MPS), ha�e been paid." lf the second option is chosen, the fee paid shall be the amount in effect as of the date of building permit appIication. Renton Requirement: The applicant shall pay the City of Renton the standard transportation mitigation fee of$75 per net new average daily trip, prior to recording of the final pla[, as required by !, City of Renton concurrency policies. The transportation mitigation fee, based on 44 new single family lots sha11 be $31,581.00. 12. Lots within this subdivision are subject to KCC 21A.43 and Ordinance 14009 which imposed irnpact fees to fund school system improvements needed to serve new deveIopment. As a condition of final approval, fifty percent of the impaet fees due for the p�at shal� be assessed and collected immediateiy prior to recording, using the fee schedules in effect when the plat receives final approval. The balance of the assessed fee shail be allocated evenly to the dwelling units in the plat and shall be collected prior to building permit issuance. stone ridge Tinal plat letter.docl Renton Requirement: The applicant shall pay the City of Renton the standard Issaquah School Impact fee of $2,937.00 per net new residence, prior to the issuance of building permits, as required by City of Renton policies. 13. There shall be no vehicular access to 148`� Avenue SE from those lots in the subject plat which abut this street. There shall be no direct vehicular access to the portion of Road A east of Road C from the lots which abut this portion of this street. A note to t �s e ec s a appear on the finat plai and engineering plans. Renton Requirement: The applicant shall comply with the condition as written. �4. Twelve feet of additional right-of-way for 148`� r�venue SE shall be dedicated along the east property line, allowing for 42 feet of right-of-way from centerline_ Renlon Requirement: The applicant shall comply with the condition as written. 15. The following note shall be shown on the fina} e�gineering plan and recorded plat: REST�� SENS TRE1C'I'S ,�1�1D SE��1'T�A.REA RS 4 �..� .: � ,,.. ' .� Dedication of a sensi�rve area tra�t/sensitive area anc�b�if -�o eys to the public a benefici:�! interest in the land'Fwit�i�, ttie tract/��ti�v� area a` biif�r T'his interest includes tl � � . a� �" ..� .�.�� preservation of nat�ve vege�at�oA �r A�ur�o , haE �nefit t e public hea]th, safety a: welfare, including�on ol of s _-a .� e�'t;�hd:_ sion,'�ma' te nce of slope stabilit�. .,n,.; protection of p}ant�an '��iir�ial p I $� t^� : `� � � _, '"'�� +� ' � The sensitive area Czact/sensit�re�r�a�� buff�r�`�npose1s;upon a�l present and futurr ��«°ners and occupiers of the land'�ubj€ct to the tracVsensitiv�'a�eara�d..yll trees and other vegetation within the tract/sensilive a�a arid_buffer. The vegeta,�on wi m the tract/sensitive area and buffer may not be cut prur��,_covered by f11; �emo�ed� damaged without approval in ' writing from the King CoUnty Depai�'€nent of.De��Io��nt Environmental Services or its successor agency,unless other'�provided by law. �:_� f< The common boondary between the tracUsensitive area and buffer and the area of development activity must be marked or otherwise flagged to the satisfaction of King County prior to any clearing, grading, building construction or other development activity on a lot sub}ect to the sensitive area tracdsensitive area and buffer. the regnired marking or flagging shall remain in place until all development proposal activities in the vicinity of the sensitive area are completed. No building foundations are allowed beyond the required 15-foot building setback 1ine, unless otherwise provided by law. Renton Requirement: The applicant shall comply with.the condition as written. Reference should be to the Renton Development Services Division in place of DDES and King County. _ 16. The proposed subdivision shall comply with the sensitive area requirements as outlined in KCC 21A.24. Permanent survey marking and signs as specified in KCC 21.A24.160 shall also be addressed prior to final plat approval. Temporary marking of sensitive areas and their buffers (e.g. with bright orange construction fencing}shall be placed on the site and shall remain in place until alI constn�ction activities aze completed. stooe ridge final plat letter.doc\ Renton Requirement: The applicant shall comply with the condition as written. I7. Pretiminary plat review has identified the following issues which apply to this project. All other applicable requirements for sensitive areas shall also be addressed by the applicant. a) Wetland B (in Tract B) shall have a 25-foot native growth buffer, as measured from the wetland edge. Wetland A (extending from the north boundary of the site to the north boundary of the Road A right-of-way)sha}1 have a 50-foot native growth buffer, as measurec3 from the wetland edge, to the extent such buffers falls within the subject property. These weilands and their required buffers sha11 be placed in Sensitive Area Tracts in the subject plat. b) The streams crossing Tracts A and C shall have a SO-foot buffer measured from each side of the stream channel, to the extent such buffers fall within the subject plat. These buffers are not required where proposed road right-of-way in the subject plat crosses a stream channel. c) A 15-foot building setback line (BSBL)sha)I be established on the fina} plat from the edge of Ehe sensitive areas tracts. The BSBL shall be delineated on all affected lots and tracts_ �� d) Buffer averaging may be all . ,d� rs to KCC� 4320 and 21A24.360,provided tl�e total amoun[ of buffer ,� a is• n�re�d and ��ter r urce protection is achieved, as determined by the Ki�'yCo L�nt�`f6se SeiviE��Div' ion��USD)_ If buffer averaging is � �, proposed, a buffer a Yagin�,p��i shall be submitted`�b,�t�.�pp�icant for review and approval by LUSD. LUSD �a}�'��g�i��e the s�b�ttal of:.a bou�d o�` pt}ic� financial guaraniee bv thc �� ,� � },_-, applicant to assnre;he insta��atio��nd�s�"`rtaiti��f o :. .quir�plantir�s for a five year peri� � � j � � � ;�, � e) The stream and w�tla�`c ss ��11 ss� rrrnti �his� oad crossing shall c� with the provision��of KCC�lA��3��1 aTid�"21A.24.37�. The.��mount of wetland area and stream affected b t}�e road crossi� '� � ` y � _ g �%i] be rr�i��rrvzed•Yo the e�ent feasihle through the use of retaining structures •i�del�rmined appropna[e b�`,LI.�:��. ` A mitigation plan shall be submitted by the appli€an��ii'r LUSD approval, to addiesssed irl�pacts from the wetland/stream crossing. LUSD may Y�c�uir�' tk��:su�3mittal of a,:bon�� or�.��her financial guarantee by the applicant to assure the ins[allation an�l surv�val pf r��jui�c�plantings for a five-year period. ' , � The stormwater outfall facility for�Yt�`�t�rri��afer pands in Tract H shall not be placed in wetland or steam buffers, unless deternvned necessary by LUSD, pursuant to provisions of KCC 21A24.330H4. g) The applicant shall delineate alt erosion hazard areas on the site on the final engineering plans. (Erosion hazard areas are defined in KCC 21A.06.415.) The delineation of such areas shall be approved by an LUSD senior geoiogist. The requirements found in KCC 22A.24.220 concerning erosion hazard areas shall be met, including seasonal restrictions on clearing activities. Renton Requirement: The applicant shall comply with the condition as written. Reference should b�to th�Renton Developm�nt Services Division in place of DDES,LUSD and King Caun�y: l8. Suitable on-site recreation space shall be provided consisten[ with the requirements of KCC 21A.14.I80 and KCC 21A.14.190 (i.e. sporis courts, children's g)ay equipment, picnic tables, benches, etc.). The amount of recreation area shall equal or exceed 390 square feet per 1ot, as required by KCC 21A.14.180A. stone ridge final plat letter.doc\ a) An overall conceptual recreation space plan shall be submitted for review and approval by LUSD, with the submittal of the engineering plans. The conceptual recreation plan shall include location, area calculations, dimensions and general improvements. The approved engineering plans shall be consistent with the conceptual pian. b) A detailed recreation space plan (i.e. landscape specifications, equipment specifications, etc.) consistent with the overalI conceptual plan noted in Item "a" above, shall be submitted for review and apgroval by LUSD and King County Parks, prior to �r concurrently with the submittal of the final plat dacuments. I c) A performance bond for recreation space improvements to assure their installation and the survival of required planting for a three-year period, shall be posted prior to recording of the ! plat. Renton Requirement: The applicant shall comply with the condiiion as written. The applicant shall '' obtain approval of the Development Services Division of the detailed recreational facilities plan before finaI plat approval will be granted. ', �� 1� ' ..: � 19. A homeowners' association or c�i�r-�o�k�organizaUo��all be established to the satisfaction of LUSD which provides for;=t�te own hip a d continu�ir��i��nance of the recreation and open space areas. f -�� ,R =�4,�„,�,,.�_� � � �_ �, _.� ; ;' A . ��.� � _��, Renton Requirement �aho�.ci�ners' a� ' ,�g__shall �tie egt�b hed to the satisfaction of Development Services Di�ision i� o��-'e�r` � a'��% the ``r�ecreatio�i facilities and associated �:�-�y��. landscaping, and sensitiv�ar�� z T e�s a . _ iatio� sball Iso be responsible for the maintenance of the drainag�fa iti�s lat. ; �" � _ �, �� , �� ''^` ' 20. Street trees shall be mcluded �n�the�d�si� i'of all r�d img,�`avemen � within and adjacent to the subject plat_ The street lree•T'andscaping design shall comp�l��i�h ection 5.03 of the KCRS and [he following: _ - �' �., �;z �, a) Trees shall be planted at;a rate o�c�e 'tree for e`v�ry�,��feet of frontage. Spacing may be modified to accommodate s��gl��stan¢e requtre,��Yfts for driveways and intersections. � �.r_:�_.. .. - b) Trees shall be located within the sEreet right-of-way and planted in accordance with Drawing No. 5-009 of the 1993 King County Road Standards, vnless LUSD determines that trees should not be located in the street right-of-way. c) If LUSD determines [ha[ the required street should not be located ��ithin the right-of-way, they shall be located no more than 20 feet from the street right-of-way line. d) The trees shall be owned and maintained by the abutting lot owners or the homeowners' association or other workable organization unless the County has adopted a maintenance program. This shall be noted on the face of the final recorded plat. e) The species of trees shall be approved by LUSD if located wiihin the right-of-way, and shall not include poplar, cottonwood, soft mapies, gum, any fruit-bearing trees, or any other tree or shrub whose roots are likely to obstruct sanitary or storm sewers, or that is not compatible with overhead ntility lines. � The applicant shall submit a street tree plan and bond quantity sheet for review and approval by LUSD prior to engineering plan approval. stone ridge final plat letter.docl g) 'I'he applicant shall contact Metro Service Planning at (206) 684-Ib22 to detennine if 148th Avenue SE is on a bus route. If 148`� Avenue SE is a bus route, the street tree plan shall also be reviewed by Metro. h) The street trees must be installed and inspected, or a performance bond posted prior to recording of the plat. If a perfonnance bond is posted, the street trees must be installed and inspected within one year of recording of the plat. At the time of inspection, if the trees are found to be installed per the approved plan, a maintenance bond must be submitted or the perforrmance bond replaced with a maintenance bond, and held for one year. After one year, the maintenance bond may be released after DDES has completed a second inspection and determined that the trees have been kepi healthy and thriving. A $538 landscape inspection fee shall also be submitted prior to plat recording. The inspection fee is subject to change based on the cunent County fees. Renton Requirement: The applicant shall comply with the condition as written. Reference shouid be to the Renton Development Services Division in lace of DDES. There is no separate landscape inspection fee within the City of Renton,��tre�� _ 1 be included as pari of the construction permit, with appropriate plans,fees�a c�ir��.p�cti�3�"s. ��, `k �,}. _-� �''a � .�, � S'.... a.n�t.s+� � rirr" 21) Docnmentation shall be �em+ul[ fro�7''a�licensefila�c� su�`eyp�o demonstrate that all required A �1>' 4 zoning setbacks are met��any:e7�istmg residences or ot��b�)d�'ng�hat are retained on the site. �� / �Lf ' a. �r � . t.y . �'��`_.... Renton Requirement: T�e appli�ant �h�l J.p�;w the c�ndition as written_ The followin � conditions have been es bli� ed. ur�� '�au�'ti" : as ec ssa io miti��te the ad�� ' -.'�r . 4 � �M.�L! - •Q environmental impacts of��is r v�lop n_.- �I' e"�ap�l��nt shalltd 'ns- ate cor items prior to final plat app�oval. -. ��=� - . � � . __ ,': � _ �. 22) Eastbound and westbouird leff tum.lanes shall be construe'1.��by tt�� applicant un SR �lxl, at � SR 900/I48`� Avenue SE �n[ers�ct3ori, .The design for the.�inlers�tion shal) be approved by i�. Washington State Departmei�t of.�ranspQ�tation (VySDOT)}` Ai� rrunimum, the existing enteri�� sight distance for the north �nd son[h I�gs of .the 'intex��ctior� must be maintained. :�I1 conswcEion work associated with�tu�l'ane cbnstructio�t��alt be completed between April ls` �ncl � -�.�. September 30`�. The seasonal restriction s�`i`��at��ieai on the fina)engineering plans. Renton Requirement: The app}icant shall comply with the condition as written. 23)The east leg�of the SR 900/148�' Avenue SE intersection shall be modified, as necessary, so that the stopping sight distance reqvirements of WSDOT are met on the east leg of the intersection. (Note that per the applicant's engineer, this can be achieved by the clearing of vegetation along SR 900.) In addition, the applicant shall clear vegetation within the right-of-way along SR 900, east of 148'� Avenue SE, to maximize the entering sight distance for the north and south legs of the intersection. Rent�n R�quirement: The app)icant shall comply with the condition as ��ritten. 24) A tree containing a red-tailed hawk nest is located on a parcel adjoining the north boundary of the site. Tract K in the subject plat, as depicted on the preliminary plat map received 10/900 (sheet 1 of 3),lies south of this nest tree. This tract shall be labeled as a native growth open space tract on the final glat and engineering plans. Tfiis tract shall remain as undeveloped open space unless it ' is documented by the property owner,to the satisfaction of King County,thal the nest is no longer used by red-tailed hawks, (i.e. abandoned for at least five years). If it is demonstrated that the stone ridge final plat letter.docl . � • �J.e • nest has been abandoned, the tract may be developed through the �pproval of a future plat application, short plat application, or plat alteration appIication. If Track K is subdivided, the number of lots created in this tract shall be consistent with the zoning and overall pernvtted density for the entire plat of SEone Ridge. A note implementing the preceding requirements shall appear on the fina}plat and engineering plans. Renton Requirement: The applicant shall comply with the condition as written. 25) Accept as pravided below, outdoor construclion activities on [he subject property on any area lying within a radius of 630 feet from the nest shall be prohibited from February 1 through July 3I. For a specific development permit, this seasonal limitation may be waived by King County if it can be shown Eo the satisfaction of the County that the nest is not being used by hawks. Any waiver will last for one nesting season and must be renewed for subsequent nesting seasons. For any season in which nesting activity occvrs, the July 31 seasonal limitation temvnation date may be adjusted by the County, based on determination that the hatchlings have already fledged and the period of.disturbance risk has passed. Any waiver or shortening of the seasonal lirnitation shall conform with Condition 5 below (#26 i�,��is report). A note implemen[ing the preceding ��.�«. requirement shall appear on the fina�p�`a a�d epg�nee"r�ns. ,��a�_°, �s,. y,.z� E � �•,_.��. Renton Requirement: The app�i�`a,�t shal��com��with the;�ondiCron as ��ritten. ��' � - � ' R .•--� - .;_.. ��-� s 26) For any nesting season�n which 1He applicant proposed a.�ytier`=;or shortening of the seasonal limitation as provided� c�djticin 4-abo,��_��in,,�his re�ortj, a�p�n formulated by a qualified wildlife bio]ogist shal�be subn�itted,,t�D � no )a �i�than;Februar 1, describing protocols for monitoring the nest f�ha�s+k u�e a��if3�est.vsage is��ing p�ac fo�dentification whether eggs ,,��. �;- have been laid and ha��Che�anc�w�en ffec��fing-has c�e'curred.#A ": pr�osed shortening or waiver of the seasonal limitafion shall�e base� Qi�;the m�initoring c�ata and i�s subject to the approval of DDES. A note imple'menting the"p'S=ece��ng requ�i-�men�s 'shal] i1�; �- ,, �E '�. ,! .�� ,, �., ? . engineering plans. Renton Requirement: The applicanl�St�al� compl`j� with-t�e co�diti�n as writt�n. l:�t�ren�e shuulJ be to the Renton Development Services Division in plac�of DD��# --�. ,:,- 27) A six-foot high cedar fence shalI be consCi'�c(e1�on the south boundary of Tract K, adjacent to Lots 26 — 34 and Tracts H and N. The purpose of this fence is to limit access to Tract K by the adjoining residence and to lessen impacts on nesting red-cailed hawks. Renton Requirement: The applicant shall comply with the condition as written_ 28) To mitigate the significant adverse impact the plat of Stone Ridge has on the intersection of SR 900/148`� Avenue SE, the applicant shall either individually or in conjvnction with other developments in the area, install a traffic signal. The signal design shall be reviewed and approved by WSDOT and an appropriate financial guarantee sha11 be posted prior to engineering plan approvai. Renton Reqnirement: The applicant shal}comply with the condition as written. 29) All grading work in designated erosion hazard areas on the site shall be compieted consistent with the seasonal restrictions appearing in KCC 16.82.150D (see condition 17g above.) A note to this effect sha11 appear on the engineering plans. Renton Reqnirement: The applicant shall comply with the condition as written. stone ridge final plat letter.doc\ �„ . •.ra> � � Construcdon plans for tlie grading, drainage, sewer and street improvements for the preliminary plat are required and wou}d be reviewed by the City of Renton's Development Services Division. A separate plan submittal for the water mains will be required from Water District 90. Plan submittals are also required for al1 franchise work, including electrical, gas, phone and cable. All work for the preliminary plat will require a permit from the City, and will be inspected by a Renton inspector. Permit fees w7l be per City of Renton Code, and include System Deve}opment Charges for sewer and drainage for the new plat. A preconswction meeting «�ill be required befare work can begin on the project. As-built drawings, cost data inventory sheets, and bills-of-sale for all [he public improvements must be submitted to the City for review and approval prior to recording of the final plat. The plat map itself must also be reviewed and approved by the City prior to recording. The plat map ean be submitted for preliminary review at any lime to expedite the final plat approval process. Submittal of an itemized list explaining how each of the Hearir�g Exanvner conditions have hcen met ��ill also help expedite the fina] plat approval process. There are several people with the City who can hel you with this process. Juliana Sitthidet (425- 430-?278) is the City project manag��'"C e fi�a�pl� view of this project, and can address �. questions related to the public wor��iss�s`forrl�e plat. Da��mpson (206-999-1828) will be the public works inspector for this g�o��ectr Q�estio�is on the ��pli�-�a�i�reqnirements for the final p3at can best be answered by Julian� Qr Jas�n J,ar'�an (425-43�?-7�19,�� Th �inal plat map �vill be reviewec� �. by Bob MacOnie(425-430-7�69)- �,<,._ ��=��'' %� �. . ;: - I hope this letier answers�our.�que�t�or��s;an t�e�requti��nts f r appr°-��ra1 of the final plat for the Stone Ridge Plat. We look,for�,ard;to�-, a��i�{: ;t�o w�o��th yo� towarc�completion af this project. � � _; ; � � ��rs �_�t Sincerely, z.�-� �` C��'1 �, _- .�.1 - _ �� : Jennifer Henning Principal Planner Development Services Division cc: I�ieil Watts Juliana Sitthidet Jason Jordan Kayren Kittrick Bob MacOnie stone ridge final plat letter.docl I � � � � � i I� � � � i W N � � � w w O 0 c�i ' - - - I i I LEVEL 1 OFF-SITE DRAINAGE ANALYSIS I' Preliminary Plat of Stoneridge II 148th Avenue S.E. North of SR-900 King County, Washington Prepared for: KBS III, LLC 12320 N.E. 8th Street, Su ite 100 Bellevue, WA 98005 September 28, 2004 Our Job No. 11444 ��HA V S �� Z CIVIL ENGINEERING, LAND PLANNING, SURVEYING, ENVIRONMENTAL SERVICES � ,� - 18215 72ND AVENUE SOUTH KENT,WA 98032 (425) 251-6222 (425) 251-8782 FAx ? ? BRANCH OFFICES ♦ OLYMPIA,WA ♦ TEMECULA, CA ♦ WALNUT CREEK, CA �� Pg' www.barghausen.com � T'hG ENG�N� TABLE OF CONTENTS TASK 1 STUDY AREA DEFINITION AND MAPS EXHIBIT A Vicinity Map EXHIBTT B Downstream Drainage Map EXHIBTT C Upstream Basin Map TASK 2 RESOURCE REVIEW EXHIBIT D FEMA Map EXHIBIT E Sensitive Areas Folios EXHIBIT F SCS Soils Map EXHIBIT G Assessor's Map EXHIBIT H Wedand Inventory Map TASK 3 FIELD INSPECTION EXHIBTT I Off-Site Analysis Drainage System Table TASK 4 DRAINAGE SYSTEM DESCRIPTION AND PROBLEM DESCRIPTIONS EXHIBIT J Drainage Complaints TASK 5 MITIGATION OF EXISTING OR POTENTIAL PROBLEMS 11444.007.dce[]P]Itep] TASK 1 STUDY AREA DEFINITION AND MAPS TASK 1 STUDY AREA DEFIIVITION AND MAPS The proposed Stoneridge Plat is approximately 16.19 acres in size counting all the improvements to III SR-900 and 148th Avenue S.E., including the entire site to be developed (Stoneridge II). The project is located within a portion of Section 3> Township 23 North, Range 5 East, WilIamette Meridian, King � County,Washington. More specifically,the site is located on the west side of 148th Avenue S.E. north of SR-900 at the northern terminus of Mt. Baker Avenue N.E. The enclosed E�ibit A — Vicinity Map depicts the approximate location of the proposed site. The existing topography of the site is such that there are slopes ranging from 2 percent up to 30 percent draining in a northerly direction for the most part,with upstream basins contributing runoff from the east, south, and west. The southeast portion of the project site is currently partially developed with existing single-family residences and buildings with drive aisles, landscaping, and associated improvements at that location. The remainder of the site is mostly forested or pasture with thick brush,which will be cleared with this development. The proposal for this development is to conswct 9 lots with appropriate storm water collection and conveyance facilities, as we11 as a weddetention pond sized for Level 3 F1ow Control in the northwest portion of the project site and wet vauli also sized for Leve13 Flow Control in the northeast portion of the project site. Access to the site will be off of 148th Avenue S.E. and by a cul-de-sac extension of ,I Mt. Baker Ave. N.E. This project site will drain to Greene's Creek and a wetland area that wilI be � preserved with the development of this project site. UPSTREAM DRAINAGE ANALYSIS Based on the USGS Quad Map, our site visit, and knowledge of the property, there are two seasonal I� streams that have runoff contributing from upstream flowing through the site. These upstream basins �'i � consist of well over 100 acres of partially developed land. There are also existing wetlands in the !, upstream basin as well as pasture and forested areas. The impervious surface in the upstream basin is � approximately 3 to 5 percent. � 11444.007.doc[JPUtepl EXHIBIT A Vicinity Map � � �y,�°�� Q�9 --� - � - �a� � uv �, I .s. m 3 �_ �r. 7��,� .�r�n ,R�,�.�' � x, � �� '"I� ;;+�, �y A5H�1I �i� I . � �� ;�. � �� = Q a � � y�'. W �', Y�15110N� Y� � ,�` �r; � � � va�r�n.rv�ay o� ',� ��. � .� � �; � .�� , u�r�5 p ua�cr : �c . , .� �' � � � �- _ ,. ' 3 �.. N � � � �,,,. � �I� � y� J ; �� 4�_ �,_m py a�' u� " ' .i.,_qp' �,��, ,� � ."�. �, '. '�9� tn �.��' � �3Y 'i � �.htl i �I o �''� ar+h,i� -7.,N h.W F� � ORTE kY N� � `�+��5` � � AV �M� „�� m ' �.- : �. ., ,'' � � � "` �' 137Td� � � qW �� , +r�� ,�' , ��, `�,� BRF�IERTON '-Ail H�-'� .ti �� Ri ,� a�, z .,' - � °�;��r ��4* �m � �� f:`y..� "k°,��ut�<�t �N�,.� v?`. � a (� is- -" e �ryil �� `� 7 f � lr j k�� -�J'1'7 �� {,�,� �x r �� , Y �y;�� '�in ��ry+f p��j�i« , Y � J��..,� � r w ,s�'��+r� ry��5��1�I'�� r�+�.z �43�5 d'� "�i �`�' � �� q��j�^�9i�{� c75 { �3f�"rC �' ��F�°��e1�`,1a"L'',�` '1'3�+ * �+ °F ��t- Y+-+, � � '"��' � . ��3-Zt �4w,i� �:�y,vn��5,,�,J�i �+�9Y$��r ��fal� � �� ;`��,'�k q^ "• (n ` � id P 4�, � 41,.,�� kx Il �� f�u„ i�' s, � .� o L4,0 1 �V SE � J ,�.��r��rn��'�°�x�,.'`+��"�� ,��;�� »��s��`��, e`�'� � ' � � ` �`' � „� ��S-. � c•" �'` '"'�t� � �L /T `"��''�`�i�a t �a J�r r�` °r '�k�� #r � AV: ',.i � .a.n cti F-+ �„ ti a �,.,�I �lJ.,e M a,� F � � �t� ��`� ➢ITE I-��d r4i!`� �'��, a�,�,�. + - g � ��-Z$T .A� $ �',`C�u t 9 a �r�+ . 'l F f dy �� . p� L �� Y t ` : k Y . � :W, � � '- - �� S r i� �',.n4; '� �y�,�s�1'�� '�� Jy��' �r�1� � yy� �+4 . . . '�' �}� �7 't at �[� i �r�y�,� '�ts a yr t 7V.e��l a�� ,�� `'� ,,Q� f^,+e6�i�H. AU '191 � � - �I�"��,�. -�Y{�,.t, .-�C ,t`�� ,7Y�r� ��1�'��".i",��°^ ,��-� �`.� � �'��rw"'f,��. �r.��' � � -.�''�, �� . � p , �i l�fai�J �� } -" DL w' i �� .. I'�'I: IiXll cAT Q,� '� � � �z�� " �� i. ��r 47 7� � z � , �� .,�-�, �,�� U��.�'�� r w�� ; � � � ,' }1� �a�� y� ��,�� • d/' . � �-f4Y ��` i:�. �' VC��+n 4 Y ^' '� � V1 .. y.. > r$' ��r 'i�" ��¢��1v � � , r'��f rn�'i` ,!'^ ,7� �� r- �r�r �` 3�'�= � 4, �ry � s� � ,f ��57HE y F., �tF��Y�"' r'�-y� � t� ' ` � ITy � ��y� .. ��n .� \ � lr �*r��. �k �� .c�. .v .:: ". , � �n+ C'cy M 1 D : � �, � . � ,�r. 74t��i a ' � ��°�Y1 n��i' 9 � "� • �� Tf�.Ap,� �t�� '� '�� ' fi��°��p ; �� t [/� � � r vaw. ��. .�'�_� ^�+f S�V F;S�'� s , � I Tj ' �L� �'4'�� l� y�:�. � I4a�i1��'nU�SE r �^ �SE � , i._, . � , 'p�� - ,, �.� � i �M,,, � t/Y � � 1��°.,.. ' �� " � ' � , � � �. � � zaB�y ' � ��-Q�,. ' � ., � �,SE� �; �'C��ma� I � . �. �� ", a � m i � ��*r�` �� o. , I �"' ` ��'��" �' � ,�,, I • 1��-,�lV�i� t1� ..r' �4w S� �rm '1 �S�' ,�U"�SE �: I � �� I I =. � �� .. :��; � ,�,� � r� � " � �� •� � •-1 �'� H-' � �-" , " ` :� -,�� n�.r �" �y1�' � � 1�2 fb �- -� Y�"�•�� - �s ` � ' �` � �° �� ;� � "'' ,, � , A^.V�- S� � , c��, '.,' I � t,,. , :�, 1 :�` 1 � � Q. .�' ,-,��'�.�'r� ; � �� ' 1 � � f � �>� � � � i a.�=-I , � ��t�r� +�a, t+�r+, 5, �' fi �/�.� �', C� c,,J�� F � t "� i r. g��' S� �� ' Z _�, •"� tq F A y . SC�i�'T;' `'�� t fl � .. O �yt 1 .j r .' R�.iuu�ya�, t` � / t _ ,� � ` �� ,� '�,� ' �� ` `�' �� EXHIBIT B Downstream Drainage Map . _ --- �. 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L/ »i� � � -" _ �� ... -- - �1 � ( ( \� ��\ � .�/ -� � I ` � \` \ �, �'�� ` M � �� V/J � � �,�,�� - ..---�l)1 ��-. �, � , I . . � ' ' - '`�� J • •� \ .r.�— ' �. _ Y � � 1�� .+� - , - � �+�� • \ 1 \\:.� Qp!�� i!l,,..._ �• y,� � �`� ' •�. . / :....• .� �j �'��!� I�� -% -, � • � �• -J • • :� • `,\ � � � � = '��- , ,,...� , � V /�/� � � . _•-� / _�C� • � � • �� / • � r � �,\ � ' ' ^_„�.,- �" • I ••.. ► \�\��`.- .��j'� // � � � �� .', • � �` � - -;-� / �� °►. � ••� • �i ,�� • �\ 'f,►/� • �. � � _ a �.� U i � \ � � !,� ! � •� �t �:�� , � a _ - _ _ - - , . ,_ , ,;;� , . ,� �,, ��:�__- �'� � �� ,; �. .��° �!� � I y� r.,..- 1 / � � C�--• � - �/(� lII1 J � � . � - � �N �i'li ?SO _WO�:. - � �., _ � � � --'" �„��,;-� � ,S � ...,. �✓/ :/�/,'� !p �,! —�-� �—�r"'�" �•• I /�/' � ` � • , � • / �► : �y� •�/` a • , � ��r„ C �■ �; �, 1 � � '� � �, � • -' — � � � 1� �''�� /'��' ��'� � ' � \ � �• � � � �� ,i� \\� `�',I ;�\� '�a Q. �� , � :�-- _ 1� _ � w �I � N � � w � � � � N � � � � TASK 2 RESOURCE REVIEW • Adopted Basin Plans: The site is part of the May Creek Basin. • Finalized Drainage SFudies: This is not applicable. • Basin Reconnaissance Summary Repon: Once again, the site is located in the May Creek Basin. It is not known if a Basin Reconnaissance Summary Report has been prepared for this basin as of the writing of this report; however,we do not have a copy on file in our office. • Critical Drainage Area Maps: The City of Renton and King County have already indicated that Basic Water Quality and Level 3 Flow Control will be the means of water quality treatment and detention proposed for this development. • Floodplain and Floodway FEMA Maps: Please see the enclosed Exhibit D—FEMA Map utilized for this analysis, Panel No. 669 of 1,725, Map No. 53033C0669 F, revised May 16, 1995. As indicated by this map,the proposed project site dces not lie within a floodplain or a floodway of a stream; however, it is known that two seasonal streams pass through the site, which will be conveyed through the site under developed conditions as well. They are much lower in elevation that the proposed lot elevations by over 10 feet. • Other Off-Site Analysis Repons: A review of the United States Department of Agriculture Soils Conservation Service Map was performed with this analysis. • Sensitive Areas Folios: Based on our review of the King County Sensitive Areas Map Folios, it was found the subject site has a Class III stream passing through it and the areas contributing to it are mapped wetlands as well as the downstream drainage course from the project site. In addition, there are known wetlands located within the seasonal stream locations on site. Those are the only known sensitive areas as indicated by the Sensitive Areas Map Folios. • Road Drainage Problems: This is not applicable. • United States Department of Agriculture King County Soils Survey: Based on the soils survey for this portion of King County, the entire downstream drainage course and the entire site occurs ' through Alderwood type soils until entering May Creek where the soils are a Ragnar-Indianola ' Association. • Wetland Inventory Map: The Wetland Inventory Map for this area is included herewith. See the exhibit within this section of the report indicating May Creek Wetland 6, which is located on the south side of SR-900, of which drainage from this wetland contributes to the project site. • Migrating River Studies: This is not applicable. 11444.007.doc[JPJ/tep] � A � � � � � � � � W Ww To determine it flood insurance is available,contact an insurance agent or call the National Flood Insurance Program at 180C163&6620. � I 4 APPROXIMATE SCALE IN FEET 500 0 500 NATIONAL f100D INSURANCE PR06RAM FIRM F100D INSURANCE RATE MAP KING COUNTY, WASHINGTON AND INCORPORATED AREAS PANEL 669 OF 1115 ISEE MAP INDEX FOR PANELS NOT PRINTED� CONTA�NS COMMUNfTY NUMBER PANEL SUFFD( KiNc couNrr. UNMCORPORltTED AREA$ 530071 OG69 F RENTON.CfTY OF 530088 0889 F II MAP NUMBER 53033C0669 F ��;��,�� MAP REVISED: � � ; � MAY 16, 1995 , < , d��o o�,� Federal Emergency Management Agency or � _ w� _ NE � 20TH LL PLACE � w � Z w � a F' hc t"�^ � srRE�- 3 J CHELAN � CITY OF RENTON SE 105TH STREET � W AVNEUE " NE teTH 530088 I a � STRc'E1' Q a � O U � sE 107TH CITY OF REN70N "' STREET ~ SE 104TH � sE KING COUNTY � �o PLACE = SITE o � KING COUN7Y 0 � IINIIJOORPORA7'ED AREAS �o D s3oon Z � CORPORATE LIMITS � � � � m w 2 r y h P�� u �J� a t�� O O � �P��t � � S ZIZ w � °C � ZONE X � U O c� Z � Z > — Y a U �o � SOUTHEAST tt2TH STREET m� m CORPORATE LIMITS — �arni ZONE ( SE »ZN P�CE AVENUE w �y SE X } O a u' SE n�; F- r � v"'i w Z Z � � Z O � � � SE 11q7�a C7 � �O � (w PIACE �� W r � Y } Z � � F- � U o a � KING COUNTY � Q IININOOAPt1RA7'ED AREAS O � � 53oon v � Q,�GF1�4fi�4 m � FEMA MAP n � Y �`�'�,,�,,,,�d`� NORTH EXHIBIT E Sensitive Areas Folios W i � /�� 4. 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I ��\ \ �---Jl . � . s� � OvD � "x � �; :BeG ��' �N� o _. }- �3 � � AgC I _ } - I �2i. _ Cp.: ��'�._ �_ ' . 306 � .� � agC � ' • . �M • � �=- ,,�__ �—' — ---- ----- �' 1 'Li ..r� _ . �� '�'Y . -. r- 4 .. , �F-- - . OvC ,. �{ � . � u_"'A.' -t-.-�. >,e:.�,� ,r�-- g h� -. - =�.-�_- - . t' ' z -- - � . t 1- + � � - � . � . 1 l � .. - - • ,.. . . .�� 1 � Vta' ,�lff. $�� _ _ .1 , = Rac •�1 --- � �= ' � -� � , � _ �� - �"^ �. :� � ��.. '��„�� - '� �` �'t� r � r� � . f :f�,�; ABC '��a 3 ��i. s . ,��{ ,c p r j'. p; - .� - � ,., .� _� _ � �� ' - I• . 'r ' t r f •��`�_,��F �/� u+a^.. _ .j. '' •.I�� .'rf-. y'~ ' 4 a I• -�' 1�� J �� ' -- Bh . �� `� 3. 3` T �d� � �� .� '',� ` F�� ' _ _�' - •M ,r aH I gM •� . � _ T�dGF_ -�: I �- . _ - -� — - �_ B'NF _ — �� Ev �. '� ti •-pe- Z1;. � _ s.. ; S . AgC ._� P w� P �. • � �� ' � � ` , i:v � i '' i Ag -- � �c�-. _. .�.. . _ . ' � ._ . . "e... - ,- '#"-g'_' I �,Ha�s i � �2 � SOILS MAP �� 4�,,,�Mo�°� NORTH GUIDE TO MAPPING UNITS For a full description of a mapping imit, read both the description of the mapping i.mit and that of the soil series to which the mapping tmit belongs. See table 6, page 70, for descriptions of woodland groups. Other information is given in tables as follows: Acreage and extent, table 1, page 9. Town and country planning, table 4, page 57. I Engineering uses of the soils, tables 2 and 3, Recreational uses, table 5, page 64. pages 36 through 55. Estimated yields, table 7, page 79. Woodland � Described Capability imit group I Map on symboi Mapping unit page Symbol Page Symbol AgB Aldenrood gravelly sandy loam, 0 to 6 percent slopes---------- 10 IVe-2 76 3d2 AgC Aldeneood gravelly sandy loam, 6 to 15 percent slopes--------- 8 IVe-2 76 3d1 I AgD Aldeiwood gravelly sandy loam, 15 to 30 percent slopes----� 10 VIe-2 78 3d1 AkF Aldenvood and Kitsap soils, very steep------------------------ 10 VIIe-1 78 2d1 AmB Arents, AldeYvrood material, 0 to 6 percent slopes 1/---------- 10 IVe-2 76 3d2 I AmC Arents, Alden,�ood material, 6 to 15 percent slopes 1/--------- 10 IVe-2 76 3d2 An Arents, Everett material 1/---------------------------------- 11 IVs-1 77 3f3 BeC Beausite gravelly sandy loam, 6 to 15 percent slopes---------- 11 IVe-2 76 3d2 BeD Beausite gravelly sandy 2oam, 15 to 30 percent slopes--------- 12 VIe-2 78 3d2 I BeF Beausite gravelly sandy loam, 40 to 75 percent slopes--------- 12 VIIe-1 78 3d2 � Bh Bellin�am silt loam------------------------------------------ 12 IIIw-2 76 3w2 I Br Briscot silt Ioam--------------------------------------------- 13 IIw-2 75 3w1 ' Su Buckley silt loam--------------------------------------------- 13 IIIw-2 76 4w1 Cb Coastal beaches----------------------------------------------- 14 VIIIw-1 78 --- Ea Earlmont silt loam------------------------�------------------- 14 IIw-2 75 3w2 I Ed Edgewick fine sandy loam-------------------------------------- 15 IIIw-1 75 201 i EvB Everett gravelly sandy loam, 0 to 5 percent slopes------------ 15 IVs-1 77 3f3 i EvC Everett gravelly sandy loam, 5 to 15 percent slopes----------- 16 VIs-1 78 3f3 i EvD Everett gravelly sandy loam, 15 to 30 percent slopes---------- 16 VIe-1 77 3f2 EwC �Everett-AldeYwood graveliy sandy loams, 6 to 15 percent slopes------------------------------------------------------ 16 VIs-1 78 3f3 InA Indianola loamy fine sand, 0 to 4 percent slopes-------------- 17 IVs-2 77 4s3 InC Indianola loamy fine sand, 4 to 15 percent slopes------------- 16 IVs-2 77 4s3 � InD Indianola loamy fine sand, l5 to 30 percent slopes------------ 17 VIe-1 76 4s2 KpB Kitsap silt loam, 2 to 8 percent slopes----------------------- 17 IIIe-1 75 2d2 KpC Kitsap silt loam, 8 to 15 percent slopes---------------------- 18 IVe-1 76 �d2 KpD Kitsap silt loam, 15 to 30 percent slopes--------------------- 18 VIe-2 78 2d1 KsC Klaus gravelly loamy sand, 6 to 15 percent slopes------------- 18 VIs-1 78 3fI Dta hfixed alluvial land------------------------------------------- 18 VIw-2 78 201 NeC Neilton very gravelly loamy sand, 2 to 15 percent slopes------ 19 VIs-1 78 3f3 Ng Newberg silt lo3m--------------------------------------------- 19 IIw-1 74 201 Nk Nooksack silt loam-----=-------------------------------------- 20 IIw-1 74 201 No Noima sandy loam---------------------------------------------- 20 IIIw-3 76 3w2 Or Orcas peat---------------------------------------------------- 21 VIIIw-1 78 --- Os Oridia silt loam---------------------------------------------- 21 IIw-2 75 3w2 OvC Ovall gravelly loam, 0 to 15 percent slopes------------------- 22 IVe-2 76 3d1 OvD Oval] gravelly loam, 15 to 25 percent slopes------------------ 23 VIe-2 78 3d1 OvF Ovall gravelly loam, 40 to 75 percent slopes------------------ 23 VIIe-1 78 3d1 Pc Pilchuck loamy fine sand-------------------------------------- 23 VIw-1 78 2s1 Pk Pilchuck fine sandy loam-------------------------------------- 23 IVw-1 76 2s1 Pu Puget silty clay loam--------------------=-------------------- 24 IIIw-2 76 3w 2 i'y Puyallup fine sandy loam-------------------------------------- 24 IIw-1 74 201 RaC Ragnar fine sandy loam, 6 to 25 percent slopes---------------- 25 IVe-3 77 4s1 � RaD Ragnar fine sandy loam, 15 to 25 percent slopes--------------- 26 VIe-2 78 4s1 RdC Ragnar-Indianola association, sloping: 1/---------------------- 26 -------- -- --- Ragnar soi2--------------------------------------------- -- IVe-3 77 4s1 Indianola soil------------------------------------=------ -- IVs-2 77 4s3 RdE Ragnar-Indianola association, moderately steep: 1/------------ 26 -------- -- --- Ragnar soil--------------------------------------------- -- VIe-2 78 4s1 Indianola soi1------------------------------------------- -- VIe-1 77 4s2 U.S. (70YEIWMENT PRIIiTII7G OFFICE:1971 O-468-286 GUIDE TO MAPPING UNITS--Continued � 1Voodland Described Capability unit group i Map , on mbol Mapping tmit page Symbol Page Symbol Re Renton silt loam-------------------------------------------- 26 IIIw-1 75 3w1 Fff► Riveiw ash--------------------------------------------------- 27 VIIIw-1 78 --- � Sa Salal silt loam--------------------------------------------- 27 IIw-1 74 201 Sh Sammamish silt loam----------------------------------------- 27 IIw-2 75 3w1 Sk Seattle muck-----------------------------------------'------- 28 IIw-3 75 --- Sm Shalcar muck------------------------------------------------ 29 IIw-3 75 --- Sn Si silt loam------------------------------------------------ 29 IIw-1 74 201 So Snohomish silt loam----------------------------------------- 30 IIw-2 75 3w2 � Sr Snohomish silt loam, thick surface variant------------------ 31 IIw-2 75 3w2 Su Sultan silt loam-------------------------------------------- 31 IIw-1 74 3w1 '!Y� Tukwila muck------------------------------------------------ 32 IIw-3 75 --- UrUrban land-------------------------------------------------- 33 -------- -- --- Wo Woodinville silt loam------------------------------'-------- 33 IIw-2 75 3w2 1/ ' 7he composition of these �its is more variable than that of the others in the Area, but it has been controlled well enaugh to interpret for the expected use of the soils. EXHIBIT G Assessor's Map cv4� _15c��3 . SGQ�� L% 17� =p9 s 41� y! _ - . 6- a't �i4i�t� I 1te.Of � -'.'-�-+��_ Q Q • - —`--�__ A Z t.�pa � � F"" �. oti Op w�r �. , • cr '� :.�� . P - . . � N h ,• � a '' �, . ,n�� °�� .• a 95,+,'�� m 1 i3� ! •�� pe . NGr,.ry _ n (4�4�°e . �zs 'c ♦ m 3�.K Q ' N �a��A p v y�g � iu. 34CRc. S7� p �ob - - /Z92.56� 4� I� ` 42^o"°� . ------�--._------__._ ri�.�a - ° SIT E 4t,;,�PS w..e s0 9�Ah 400n^�^ q• .,>.�° - izv2.sa: 35 - '✓B7'qq'o8 /a9d.47 St/.Q/. - — A 39��4°Z . .PE,c u�✓'S��e% 'e•.<a J 53�2i8 � � S6�p� �9pP� � �o�� •"��r:e_ /29Z.s/S ...ra ...�._. �� t.� reric;�c d. int.�e�sr� iresa - y 244 � , ��\ 73/.9e � '`- � NCSP 486017- 0303900t t LOT 2 k� ��— � i�N �a CORR. 87p6260950 �t � LOT 1 Zj�3o � 35-``��a h � -- �^ _ �I"' _ _ '� ? tep• � . . LOT� 14o�O y - D o.e�>�<<:..,_ i o � �- ,� � ,a, ��.,p 2 � �q� ¢,��5w � ya+ et3.z3 . - ..�ea.tJ•uem ^� .si.se~ � ' � � s 42'L�o 2�: � , ias.za�aN 6ao.z ' ln Z63.9B —� �TI�A 7 O W (H ST �rz se ,�,8 _ isn- ^ ',. D o�v�=af u. Gl3 _ � � �'� . 33a.c/: .r-i�49'oew. . .vGrf9-odu �fi Ot3 bso.2 '�� o N 3�uy� - _ . � SB7�49�OB'E .1 �- N � ,1'OYE: 7fR :�fL/�L/oJ.GB/a92 � ��? � N 31 ! N � �"' : Lot 3 N� = 3 �o� .� ~ � n�. M e � Ylo M (n u `- ± ; yP.�p�. %� � .� 0 o+`�� c� R'�� °-� M �y�r p , /3J.s� SA es NBB-3s-OeW r A NE7-H-�Hw /15.03 �� ? � � p �, ' 30 :: �M18 Lot � W � a �;Ia: � z 81�' �'r� � „ ?p� � �o � �,� �� <'� !"' � �" .• ,� e ' � � sB�asbeE�, w•4 i3..er 2� !#99 % ..ch-ss�s.u..�.v-aas.sii�. v A� � Bo e4. 1 � � �30 �8 L01 I wp 81 � �i�'� or'�o �'o' -iy - wy o: ts°' Y 1 l � �� . �' � � i3s.as � Lot 4 �@ pP`� !f� Y°� '� ��,m..,�i . �.B ��q . n .,.o,.s�,_es.✓. g: �1a r �� "'a 29� 6� �/ s � o r �.4� yn.�a.ww d �� e s°' w� . v us-s� � o �. s � f ;_ �, :�o, , Z� � N;` LOT3 L V a A /�+�� . 'j`�A,v�J g, . � � ''� b� �, ia°s°Q q'o� � 'r6'"1''L , ps'�o•pf�' Pt zs t � �A `y h� Na�.,,_� �x, . �i.'yyA`' _ o .J �+�„ �P �r.. 'bp� A . b� - � �V d i)!.59 V �D � y �1],i� yF � � w� �4• ' �� k�`e f��• �� 0. p ye4:,yt .0 i�S �p{b � � �.. ` � �y4 Z`� `�6B �� : HLOT � .:n-n-oer. 3 �ti19- d�� Y�� - � �0 .`� o.� , ��L ogiOO' Z` ^ . p z op � � . � �s... �4� M �ng?c t�l� p�'i ,� �"�De�m—_ A'ry� !y N �^�s�� m..i � 4i�a.: fe?� . �'"�3�'� �µ�� d 3�. h .ve�-�v.a�w 4 ". .r.��„ . ' Yl� � ��O � N �� K� � inss� ¢ ,LOT,�LOT , 19 0.5 ��' . m^ �Y N��`e\rs�.os.:r ", � '� � 2 r r 3 ��p J4''� �N �. l g -��. � �c�,..«..• af.oi Z m 3 g ' �� f5 ��', Q � � � _3, :,�d. N..�.<.....1, e��` m � e,3 .�ov e, � . �A gP N � : "ss� ,�? ' �a ��! , bP r�LoT/ � � � }p� 5v i �t Fgs \5 Y 6 o r� �� '�1 a � � �� ,�o d� ,�pN�. o . -�Z \ jJ9 p 1 p, �`E� ._�w�Y �,bqt ��•�`DI�R E� ��N 4 �a �a{ 1- ioa e ;r .� . ,.�� r�.''s ' �ay�i O;str +.� , y . �- ] N - •'t �t'� .8�� tQ�l79-A l. �' .. •v . � , � _ ��s � . ..� �p .. � i:ir• s'e;.A� b ¢GHq�s F � 2 ASSESSOR'S MAP � �4,,� �°� NORTH � EXHIBIT H Wetland Inventory Map J. :�"li, ai A .l�� . � t .;..�'�-.,. "�i'.-.5 ^r�f - [ - },�.._ � vi,�. � _ I k. rM'. ♦ �i -.�t �y 'H wy •*- ��_ lssaa�a h � . ! . ,��. `- �Re�, �(�� r ...� �.. , '`-�°" �,,G•. 1 � ,;�k'_�;< ��.,� �"�' "= 3,. ��,-� � s x "`$f - a ,C . s L �-�{--:: C ��a 6T'�~ + _� sa: . _ j _ �`.,.. Q �f�.t � �� - f r .;_ ��--= -�� ; ,c � � �� '�• _ _ _ �:.,,� � t -H�zen��:+ � ifi.S: � � ►-f,� :� _ _ �. � ,� _� _ .� � � s ;� ; — _ � �� ^�p . . -- - * �`__/ Photo Date: 5-80 North A Approx. Scale: 1"= 500' I WETLAND: May Creek 6 COMMUNITY Newcastle ' PLAN AREA: LOCATION: SW SE 3-23-5 BASIN OR Cedar Ri ver DRAINAGE: lNVENTORY DATE: 7-20-81 ACREAGE: j• 8 CLASSIFICATION: Fish and Wildlife Service Common Name PSSI Palustrine, Scrub-Shrub, Broad- Scrub-Shrub leaved Deciduous ({;'i11ow) PFO1 Palustrine, Forested, Broad- Forested Wetland leaved Deciduous (Red Alder) NOTE: The wetland edgs shown above Is approximate. In marshes, ponds or lakes, the transitlo� from standing water to uplands Iz uwally clear. However,the edges of forested or scrub/shrub wetlands are leu dlstinct. There,the change from wetland to upland oiten occurs over a b►oad area called the "transltlon zone". For a discussion, see WaGand Plants of KIn9 County and th�Puear c......w. ......__�.__�.......�_.._. . ... _ . May Creek 6 UBSERVED SPECIES: (refer to list in Appendix 1) Tree�: AM, AR, PT • . He►br. LA, OS ��+bs: AC, CS, LI, RS, SX, SD Sedges/Ru shes/Grass/Fern: ' Bi�f� AR, ST, SS, WW Mammals: Fish: Other: RARE/ENDANGERED/THREATENED SPECIES: (refer to list in Appendix 2) Recorded/Observed: PoteMial: SIGNIFICANT HABITAT FEATURES: OUTLET: Type: pipe Condition: Open ��e�� Stream POTENTIAL STORAGE: ExistingActive: 4 ac. ft. PoteMial Active: 8 ac. ft. GENERAL OBSERVATIONS: Northeast corner filled some time ago. Head waters .of Honey Creek. , WETLAND EVALUATION SUMMARY: Data was collected in the five categories shown below. Within each ptegory the data was evaluated to produce numerical values. Composite values for each cetegory were produced in o►der to oompare each wetlartd to other wetlands in iu wb-basin and i�Ki�g County. The result of that comparison was a percentile rank. The percentile is expressed on a scale of one hundred and i�dicates the percent of wetlands that scored equal to or below that particular site. For ezample,a percentile rank of SO under wb�asin means that the wedand scored equal to or better than 80 percent of all sites within the wb-basin for that evaluation category.NOTE: The percentile ronks are valid only,within the i�dividual evaluation category and are intended solely for reference end comparison. Rank Evaluation Category . (by percentile} Sub-basin County-wide Hydrology: runoff storege potential,water quality,potential for minimizing damage 6!� 82 in downstream areas B101ogy: quality of habitet,abundance and diversity of plant and animal species 21 2S ViSuel: diversity and contrest of wetta�d and wrcounding vegetatio�, 3S 34 surrounding landforms Cultural: types of access,proximity to schooWinstitutions,overall 50 56 ernironmental quaiity ECOnOmic: presence of agriculture/peat extraction,anadromous or game fish, 35 25 game birda or mammals of commercial value WETLAND RATING: � - ^h wetland was assigned one of three possible wetland ratings. The wettand ratings were determined by examining the scores of selected �tory tasks, specific data or percentile ranks for individual evalustion categories. The criteria used to auign the wedand ratings are ,ribed in tbe Introductio�. For esch reting a number of specific guidelir►es for new development in or adjacent to wetla�a wero prepared. The guidelines are intended m auist in carrying out King County's Sensitive Areas Ordinance and other wetland policies. They are included in a sepa►ate report titled"Guidelines for King County Wetlands". Wetland Rating: 2 `'�'� . : .. _ , �� : . . . � .. �a.-.:. . . . . . �. . ��... . � . . . , . � . �_._::��' _. . .. . � � � _ . . � - ... - . ... - - . . - . e: TASK 3 FIELD INSPECTION � , � , �I i ; - . _ . I - TASK 3 FIELD INSPECTION There were no major problems reported or observed during the resource review. Based on a review of the drainage complaints in the downstream drainage course, there was one property owner who has indicated that erosion is occurring on her property at several occurrences during major storm events in the last 15 yeazs. In addition, that same property owner has indicated that flow rates contributing to the stream in her backyard are increasing as development occurs in the upstream basin. This property owner has written several letters to King County's various divisions including governmental offices requesting assistance with problems on her property. That is why Level 3 Flow Control is proposed for this development. Based on the drainage complaints and our site visit, it appears flooding has not been a major problem in the downstream drainage course from the subject property; however, Level 3 Flow Control will be provided. The upper 5/6 of the downstream course courses through mostly backyards and brushy areas, until runoff enters May Creek on the far north end of the section. Most of the downstream drainage course investigated by this site visit and a review of the SoiIs Map indicate that the downstream drainage course occurs through Alderwood soils for the most part and then Ragnar-Indianola type soils near May Creek. The field reconnaissance for this off-site analysis drainage report was conducted on March 3, 2004. The skies were partly overcast and the high temperature on this day was approximately 50 degrees. 1144�t.007.doc[JPJ/tepJ ill EXHIBIT I III Off-Site Analysis Drainage S��stem Table I � � OFF-SITE ANALYSIS Dh�. .NAGE SYSTEM TABLE Surface Water Design Manual, Core Requirement #2 Basin: May Creek Subbasin Name: Green Creek Subbasin Number: Distance Observations of Field Inspector, Drainage Component Drainage Component from Site Existing Potential Resource Reviewer,or Symbol Type,Name,and Size Description Slope Discharge Problems Problems Resident Constrictions,undcr capacity,ponding, Type: sheet flow,swale,stream, overtopping,flooding,habitat or organism channel,pipe,pood;size, Drainage basin,vegetation,cover, desWetion,scouring,bank sloughing, Tributary area,likelihood of problem, See Map diameter,surface area depth,type of sensitive area,volume °b Ft. sedimentation,incision,other erosion overflow pathways,potential impacts �O Vegetated channel Wetland through backyards 5 0'—575' None Noted None Noted Area is fenced off, couldn't get a good look. � 30-inch CMP Under S.E. 104th Street, flows 2 575'—600' None Noted None Noted north � Channel Through backyards 1.5 600'—2300' None Noted None Noted O 4.5-foot by 5-foot CMP Flows north under 26th Street 0.5 2300'—2350' None Noted None Noted arch culvert � Well defined channel Flows into May Creek 1 2350'—2750' None Noted None Noted 11444.007.doc[JP!/tepl TASK 4 DRAINAGE SYSTEM DESCRIPTION AND PROBLEM DESCRIPTIONS TASK 4 DRAINAGE SYSTEM DESCRIPTION AND PROBLEM DESCRIPTIONS Runoff leaves the site through the north-central portion of the project site and courses through backyard areas and vegetated swale consisting of wetland areas until coursing underneath S.E. 104th Street through a 30-inch corrugated metal pipe culvert. Flows continue in a noRherly direction for the most part passing throu h ck ards in a well-defined channel until flows ass underneath 26th Street in the Ci of g ba y p ty Renton, flowing north through 4.5-foot by 5-foot CMP arch culvert and then a little bit later the flow courses into May Creek. A review of the Exhibit J — Drainage Complaints shows there is one property owner that is very concerned about stormwater runoff surrounding her home. Many complaints were addressed by her from adjacent property owners. In addition the upstream drainage basin, which contributes runoff to the seasonal stream passing through her backyard, is the downstream drainage course from the project site. This property owner is the only complainant on the downstream drainage course from the project site,but she was complaining of erosion during peak flows contributing to an ongoing problem in her backyard. That is why Level 3 Flow Control is being instituted with this development. Please refer to the drainage complaints for a complete description of the problems associated with the downstream drainage course. ,i ll444.007.doc[JP7/tepj EXHIBIT J Drainage Complaints . — - nv.�ae r.li4 � �ll�,� Kin�Countv Water and Land Resources (WLR) Y?ivision 201 S Jackson St, Suite 600 5cattle, WA 98104-3855 Date: d i � ILE �OPY - Number of pages including cover sheet: _��___ To: From: Ciudy Torkelson � F�. �� _ �� WLR Stoxmwatcr Scrvicas Section Phone: �-S �I ' �j�a'a p�ne; 2 6 296-1900 Fax Nttmber: �206) 296-01 2 12E: �..evel 1 A.nalYsis �. .�. . To follow is a list of compla.ints rec�ived by the�Water and Land Resources Aivision Drainage Services Section. Cpmplaint numbers beginaing prior to 1990-��have beet�archived and are no longer in our possession. They can stiU be retrieved,if necessary,but:will take additional time and may not be beneficia].to your research due to th�ir age,developmextt whieh has occurred, etc. T�you are intex'ested in revie�vving the actual oomplaints,they ean be pulled(txme permittu�g}for your review. Copies can be obtained for$ .15 per page, �d$2.00 per page for pla�ts. Ke s: . • �� Tvne of Inve�tie�tion . 'I��ofP dlcm C AatJoa Rcqucst DC'.A Llcvelopnru�VCoostrudion BCV�' Bu�incse'tbcClean Water DDM Dr�lnega-Muc�Ueneoiu CC� Rtspol�setolnquiry DES DtsbnQo—BtMlocilSedimwtation ' •CL . Clnim DLS drainage--I�ndslidc/EatthMovrment EH Entbrccrticnt on Hold DTA Prvieege Technica!Aseistence $R Arlfnraemont Rcview QfQ Drainsge—C+enuai L►qniry , PCC,FCR,FCS Fectli�yCompWnts MMA MCintenanr.a-Arsthctics F[ SWM Fa Inqu� MH� M�aacc.Flooding Ffl2 SWM Faa Rcricw bIIKG ' M�tlnu,nena-Gencrn) FtN . SwM pa on Ho1d iWuIM . Memteosncc-MowinB •LS UtWsult MNM � MAipEtn�noe—Nad9Malptenar►ce _ RR Bsoili�Bngi�lcuing Ravic►r .•.r4+1W Mnfnkn�a-Nmctom Wocds NDA TlaahborUood Iksinege Asaistm�a SW� 5Vi►M Fee Questlons WQC 'W�tcr Qmttt�Camplalnc R►QB WAta Qu�tty—Bcet Msnagemcnt Ractias WQH Ahtor Qusliq�Pr�IIorcanad WQD Wsoac Qnelih—Aamping WQR WRkt Quellry 8e��neriin6 Heview WQI Wsar QuAliq�—Dlicit CvjtnxNon WQA w.e�Qualiry�ue►c REM SWM Fee-Ranessuroment � wQ0 waAu Quatltr•-Other GRT s WM For.�GroM Si,S?,SN3 Engfncuin�Studlea NWD SWMPee-NorrDiscount •Suhjcct w PubUc Diselosuro requi�menu L Recetpt of written requcst for doeuR�ents 2.Revlaw md approra)by Pcoseuning AttorneYs of�i� . . . �� . .� -, Khl��OUlity WBtQP�Ild�$01�R�DI�'CB=�Y181011-(�"8418Q8 SAf`VI�3�A npl��it Seat�ch Pdnted ' 3/3/2004 2:30:Z6 PM NUed�' 6afe Y9pB pf�I�Obiem A�'ess of Pro�1 �� TtY'os Pepe 1975-000�4 C pRNG 958 S UNSET BL SE 13BTFUSUNS�"f BUANN�?CED 626J6 198a0oos c F�LL 138TH Av� SE HONEY CR��K/MAY CR��K 62BJ5 1983-�45 C 15823 SE MAY VALLEY RD FILUNG/MAY CRK 627A5 198300A6 C DRNG 112D3 14BTH AVE SE PONDING 626J6 1983-0057 C FLDC 104.48 151S'C S� 627A5 19840015 C FLDC RENTON-ISSA FNUY MAY CREEK 626J6 1985-0225 R VIOl..4TE 1b019 SE MAY VAtLEY Rp "' TO CODE ENF. 627A5 �985-0809 E � • • � � Pr171tAppvdSWM-DRS 627A5 1966-0654 C FILLING 112D3 148'il-i AVE , S� 626J6 1987-0284 CL FLDG 14847 206TH AVE . 5E BASEhA�N7 FROM CULVERT�CL.#10505 �27A6 ige7-0�85 C DRNG �5004 SE 114T}j,ST t�E1�HBOR Fl.oOplN�pROP�R"IY �27as 1987-0485 ER .,..__. , __ ,� _, ,,, TO RD DRNG FOR CMlRD CDORD 10/27/B7 627A6 19B7-Q485 NDA •� WO RD DRNG FOR CM/RD COORD 10/27/8 627A6 1987-0601 C DRNG 1�100 SE 100TH PL � FROM IVEW DEVELOPMENT 626J5 1987-1189 C DRNG 10218 147TH AVE SE DRAINAG�FROM RENTON R!D POND 626J5 1968-0787 C DRNG 1500�F • S� 114TH ST iLlEGA�INSTAI.LATlON OF TILE 87-0485 827A6 �-�$&0790 C DRNG 14418 SE 116TH ST INADEQUAT�SYSTEM INSTALLED 626J6 }'}0117 C DRNG 14408 SE 100TH ST SUMMER WINDS DRAINAGE OVERFIOW B26J5 >��-01a0 C ER0510N 14d29 SE 116'TH ST ' PVT Rp WASHOUT DU�70 NO DFtAINAGE 626J6 1989-0150 C DRNGlERO 14428 SE 116TH ST PVT RD WASHOUT DUE TO NO DRNG 89-0 626J6 1989-0318 E DRNG 11800 138TH AVE SE CLEARINGOF R/D NATUi2AL R/D P�ND 626J6 �98�o53a C �RN� � �ae42 SE 11�4TFi ST FILL OF DRAINAGE 87-oas5 627As �ssaosas C DRNG 14842 S� 114TH ST �ITCH FiLLED IN 627A6 1990-0819 C PONOING 10403 147TH AVE ' S�,, IN YARDl81-0619 826J5 -�' 1990-0982 C DRNG 15630 SE 118TH S7� DITCH�NDS BY PROPERTY 627A6 1990-1623 C FLDG 136'11 SE 116TH ST (�R/D FACILIIY SEEPING WA'T�R 628J6 1991-0339 C F�DG 11212 13TTH AVE g� PIPE O�PftIVATE DITCH 628.16 1991-0578 C DRNG 11833 1a2ND A1/� SE WATER PONDIHG IN YARD 628�6 1991-Q619 C DRNG 10403 147TH AVE SE 1NCREASED FLOW IN SF.ASOIVAL CREEK 626J5 � 1891-0619 SR DRNG 104D3 147TH AVE $E TO CIP 626J5 � 19�91-0797 s2 ON HOI.D 627A6 1991-0898 C DRAINAGE 15212 S� REN701VrISSAQ RD HIGHWAY DITCH CL�ANING 627A6 1991-0932 C DNERSIO 15630 SE 116TH ST DITCH OUTl.�T ON YARD 627A6 '1991-1127 C BEVER�AM 1�4800 SE MAY VALLEY RD DAM IN STR�AM 626J5 �C— 1992-0100 C DRAINAGE 12240 142ND AVE SE 626J6 1992-0137 C CONSTRUC ,14410 SE 1077H PL , , : NEW CONSTIRENTON 626J5 '1892-0169 C DRAtNAG� 10262 '[47TH AV SE ' 626J5 *�C ; 1 Page 1 of 3 — ��v.�oo r.�iy �t � lype of ProMem A[k�st�Pl�lea� 6o�ents �Pepe I • w��r• ��w�ni �'�. '�-0169 SR DRAINAGE 1D282 147TH AV SE NQT NDAP(GROUND WATER) 626J5 � ��a92-0464 C MAY CREK 15440 SE MAY VALLEY RD MAY CREEK RISING 627A5 1982-0484 SR MAY CR�K 15440 5E [WAY VALLEY RD MAY CR��K RISING N071JDAP 627A5 1993-D086 C DRAINAGE 1022� 148TH AV 5E DRAINAGE CHANNEL ON PROPER7Y 627A5 � 1993-0094 WQC EROSIdN 10217 14$TH AV� 5E EROSIdN ON CLEARED LOT 626J5 � 1993-0236 C EROSION 10202 148TH AV� SE EROSION PROBLEMS ON ACTIV� PREMIT 627A5 � 1993-4236 ER EROSION 10202 1�481'M AV� SE EaOSION PROBLEMS ON ACTIVE PERMIT 627A5 !� 1983-D236 RN EROStON 14202 1487H AVE SE EROSIpN PROBLEMS ON ACTIVE PREMtT 627A5 � 1993-d339 wqc s�wAGE 10222 148TH avE s� REFERED TO DDEs 627A5 � 1993-0387 NDA DRNG 12203 14$TH AVE S� PONDING IN YARD NDA-F 627A6 1993-0387 RN DRNG 12203 148'1N AVE SE PONDING IN YARD NDA-F 627A6 1993-0�437 C DRAINAGE 11204 149TH AV�NU� , ��.. ENCLOSING ROADSIDE DI7CH 627A6 1893-0858 C RVNOFF 10220 146TH AVE g� CLEARING OF NEIGHBORS LOT 627A5 � 1993-0832 C �RNG 10220 148TH A1/E SE CLEARING OF NEIGNsORS I,OT 627A5 4 19940177 C DRNG 10218 148TH A1�E SE NEW HOUS�NEAR SWAL� 827A5 �E 1994047B C INQUIRY , 't0217 147TH AVE • SE RflAD CUl.VERT OUTLETS TO LOT 626J5 �f 19940476 NQA INQUIRY 10217 147TH AVE g� ROAD CULVERT OUTLETS TO LOT 626J5 -E 1995-0420 C �ROSION 10415 14TH AVE S TRIBUTARY OF MAY CR�EK 626J5 -F 1995-042o NDA EROSION � 10415 14TH AVE S TRIBUTARY OF MAY CR��K 628.15 � 1995-0420 RN EROSION 104i� 1411i AVE S TRIBUTARY QF MAY CREEK 626J5 'E '��0B89 C EROSI�PI 11204 148TH AVE $� Sl.OUGHING OF ROAD5IDE�DITCFt 627A6 Y0718 X DRAINAGE 10415 147TH AVE SE SEE 94-0420,NDA-C 626J5 •F 1995-0996 X DRAINAGE 10415 1a7TH AVE SE 826J5 �E '1995-1037 G DITCHES 11224 148TH AV� , SE STORM EXC��D�D SYSTEM CAPACITY 627A6 '199Cr01�43 C RUN OFF 14614 SE RENTON-ISSAQUAH RD RUNOFF FROM SR 9UD 626.l6 � 1996-OS52 C FLDG 'f 1615 146TH AVE 5E • 626J6 199f}0552 R FLDG 1161� 14$TN A1/� S� FL�ODING FR�M VANDALIZED FIRE i-IYD 626J6 1996-0750 X DRNG 1D415 1�F7TN AVE SE DD�S WAS L�AD-TI-IEY HANDlED 626J5 '� 1996-1193 C EROSION 1120�3 14BTH AVE S� REQU�S7 TO ENCLOSE R!S DITCH 627A6 1998-1377 C RE�pGRAS 15440 S� MAY VALLEY RD R�Ep CANARY GRASS R�STRICTING CFiA 627A5 1997-1299 C DRAINAGE 15329 SE MAY VALL.�Y RD PVT DRIVE CONST tMP TO RD DRNG SYS 627A5 1997-1299 E DRAINAG� 15329 SE MAY VALLEY RD PVT DRIVE GONST IMP T�Rp DRNG SYS 627A5 1997-9299 R DRAINAGE 15329 SE MAY VALLEY RD PVf DRIVE COtVST IMI'70 RD DRNG SYS 627A6 1997-'{454 C DRAINAGE 10�29 FaREST AV� S pFFSITE SHEE?/CON�ENTRAT�p FLOW I 626J5 '� 1887-1454 R pRAINAGE 10429 FOR�ST AI/E S OFF51T�SHEET/C�NCENTRATEp FL.OW I 626J5 '� 1999-a196 C DRAINAG� SE 101 S7/1a6 AV� SE OFFSIT�FLOW lMP PROP CI7Y OF RENT 626J5�- 1999-032D X DRAfNAGE SE 102ND/1�7-48 AV $� MORE OF THE SAME 62BJ5 � 1999�oa�7 C FILLING 15019 S� MAY vALLEY RD au�GED FILLING VIOv�T�oN PREvtoUs 627A6 1999-0710 C D�SRIS 148XX SE R�NTON-(SS RD UTIL WORK ST R!W APP�ARS AD�QU No B26J5 � 199s-o725 WQC CRE�K 14813 SE RENTON-ISS RD , CONC�RNS R�GARDING SEDIM�N7 DRAI 627A6 -� 1 , . .. page 2 of 3 _--. .. ..� ..�•.•, IYU.ytib F'.4/4 '� ad iype ei PI'd�em Ati�'�of Prahl�� ipma�ta • ibros Pape .�� 10026 C C�EARlNG 10415 147TH AV� S� LOT CLFARING PR�P TO N�1N CONST?? 82Ei,15 � 240U-044Q WQR pE& 104i5 147TH AVE SE WILL REVISIT SITE DURING RAINSTORM T 626J5 � 2000-0760 WQR W�B 11204 148TH AV�NUE S� Mrs.Waltrip has mulched all exposed soil to s 626J6 2001-0065 X IN� t0415 147TH AV� SE EMAIL RESPONSE S�NT F4R R�N SIMMS 626J5 � 2001-0188 X DCA 10415 14Tf1�i A1/E SE prepened emai{for Nancy Hansan to send to 626J5 � 2001-0274 WaR WQO 10220 148TH AVE SE 627A5 � 2001-0318 X INa 1D415 147TH AVE SE RESPONSE BY RON SIMS TO A LETTER 5 626J5 � 2001-0765 NDA- DDM 10415 147TN AV� SE PO7ENTIAL QUICK FIK-WAT�R FROM NE 626J5 �c 2001-0765 R RDM 10415 147TH AV� SE POTEN7IAL QUICK FIX-WAT�R FROM N� 62BJ5 .�- 2001-D842 E DDM 10217 1477H AVE S MS. NAGEL BLOCKED A CROSS CULVERT 626J5 -E 2002-Q005 C DDM 10415 147TH AVE 5E PpR FOR ENFORC�M�NT LETT�R 01-D84 626J5 !� 2002-0035 X (NQ 1041� 147TH AV�SE RESPONSE T01/9/02 EMAIL FROM C�AUD 626J5 '� 2002-0212 C DOM 10726 148TH AV�SE SFR WITH GROUNnWATER PROBLEMS. 626J5 � 2002-Q303 NDA pDM 10475 14TrM AV�SE UIdDERSIz�D CULV�RT CAUSES BACKUP 626J5 �C 2oo2-oaos R DDM 104�� 1a7TH AV�S� UNDERS1ZEp CU�.11�RT CAt1S�s BACKUP s2s.15 F 2003-0210 X INQ 10�415 14TTfi AVE SE ETAAiL IN�UIRY REGARDING EROSI�N CO 62s,t8 �- 2063-OSni C UTA 11327 14IIT11 AVE SE WATER IN CRI�,'�P�;L :;PACL. F1P{'�r"�RS TO u2ci.!Fi � I I • I � , • ` Page 3 of 3 I f :�� ' KiNG COUNTY DEPARTM�NT OF P�3'L�'C WORKS � O SURFACE WATER MANAGEMENT DIVtSION � � ! � � �l ( COMPLA(NT INVESTIGATION REPQR� ' � � �,��o: NATURE OF COMPLAIN7: � � - S.S �� L_ ✓ SEC �TWP�3RGE S LOCAT101+l: �/�S� ,��J%�� KROLL PG, cYC�1C� COMPLAINANT: 1�i�1P� ��'di✓PA -C COUNCIL DIS7. �_ � a+qr+E a0. //' HOME z-�S ly�� ' Address �0�� `�' ��t � City �Statel�✓�" Zip� y�ORK I DETAtLS OF COMPLAINT: I� � � �v Co.��%:��N� r�� --��y� i�o,� ��'� , � s�� pv�c-e,s o�vT� sGUn� ��o% �s �2d,o��z�! u/,4 i� i /.cJ /�`�s �9-e'�%/�.��, �� Gr j �� c�N�$ ; , ' �/✓¢/��. ' �ar � -!�Glc / M l�►! va�.('o-op Co� r^"�PLAINT RECENED SY: Z3Q('j(J - �g 6 � I, 1S OF INVESTIGATION: Sketch on revers ide:Yes No� Photos:Yes � No C� �n On site 2-27-92. The Brundage residence is located on the side of a relatively steep hill . -Slope is from east 1 west, and 10262 fronts on 147th. To the rear, and facing 148th is a new home, graded, but witt no vegetation (landscaping). 148th at this location is a shaulder tyne road with ditehes on tt east side. Run off to the west is shared by the property owners. Observed no noticeable erosic at 10263-148th from the road. Roof run off is piped-probably to a dry we11 . Photo 1) Looks south on 148th with adjacent lot to Brundage at right. 2) Looks west from 148th at 10263. Brundage is to the rear and down. 3) View of Brundage house and 10263 - 148th in backgrnd. ` �L-E._Le✓�QGe DATE: 2-z8-p Z I �MPLAIHT INVESTIGATED BY: : ACT10N TAKEN: 3-13-`�,Z. Sr� �..,� �n/��- �u.t�l�-(r-�- . .l cc�/1's� vo r.t� v.cK o f /' .li r,.,2o S� r�� t�.�.r � ��$r�r . �r�I e�r�.nw-f� vw�.. .� �..w,� �C..�-r�� - �j'u•..�Y z•�w�/- �r i��.t•t (' �„I�tr.�, /�1 d� Gr�+/� � �/M.wi}� �O�Di1.1� GPv+-A/{'C -�✓�V�t (yv�t s.��y, S.X� - 1'L✓�I /�. l (/ / � � � 0 / - / /�'�`�"/ . �,w< .�+h w...�►`- �1 0 . F4s�/��•..r. !�'�f � n`/�� V Com�lainant advis of action possibie or take�by Phone Letter D Personal Contact D Q� Complaint Action Handled By Closed: 3 � OK'd= --�� 1.l�i-�I i.✓a.r-�l�,.,-._ �J i�� Nw�! n.1��1 ♦ 4 a.,Q. -- -� • 1 � � � Z _� �, -� �.j � --> � - --� � , ` � 3��' N� � � � . � � ' � � • F�ZoI- �z.o I -� y � � � . � i . � J . i� ; . �jy at� , '�\ S 17� � � y'�f'� � %�% � �� y`Ll,� � , � , � � I u��a>i � KING COUNTY DEPARTM�NT OF PUBLIC WORKS . �� S�RFACE WATER MANAGEMENT DIVISIO�v � � : I : COMPLAINT iNVESTIGATION REPOR�' ' � � � I Oate Aec d: ( / � NATURE OF COMPIAINT: G z 7- /� S �� G��-P ' � SECZ�TWPZ3 RGE � � LOCATION: _S�G�,��,f�7U lUF.1trHBo�'' F3�rr�Q r �v/�'I.q si��a�s � KROLL PG. �O / � COMPLA�NANT: �RN,�I.��Q� COUNCIL DIST. � P�+ONE NO. ��,�;,/� HOME B Z�3 9�0 U Address ��Z� ��r �v ssi City ,��',,�-{,�-State Zip WORK: �F.�S'('S O�7� DE7AtLS OF COMPlAiNT: �G� � w�� ,�' �ti��6��or.c e��; a �-o uu 3 y�s � �o �` /��c T-1� � �rc�<nc�.� SY STi ry1 Gt//�eL'�t �iG'r i i2s O i'l77� Si/'l7 0�'1 s �G� �1� S'�s�,v,� �'J�z�-t h�.c al �v T �C.,�'r-" OGr�l3��'" Gc�'t d � C✓jf co r�-c�c� y7zG�T . ��a� � -�� s �►��ryn � g� � �.��n� 1�y a�.oss � ��w�,� �u �1�n S ?D 15�>c.� G� 1 oG�I-2 , � fS is U r��.z�� .-�� h,%� So��,�1 y n�r� h 6 0 �--.,u��,%�� af ��Q r�d w�ry, � ra�ns /�� CGf�/ ��r" i�l�Cf��trav- c�7,�� tU rG�.o,.� Gocunorr rd ��+as,ti t� n ` �,wc. r�o n., ��crzS H o n c� rn 9 2r-Tyc�-�..¢� . ��LAINT RECEIVED BY: ��ti :S OF INVESTIGATION: Sketch on reverse side:Yes No O Photox Yes D�_�No O �n s i te Z-2-93. °i�'"'" Met with Mr Simon and viewed the problem. He has a one acre lot that he has cleared for,�E � construction of a home in the new year. Slope. of the surrounding properties is from SE to NW, and neighbors to the south have dug an interceptor ditch across the back of their lot ' that is also said to drain another ditch from the next southerly neighbor. This had drained to an area on his lot that is proposed to be the foundation for his house. Mr Simon in turn dug a ditch along the property line to the ditch on 148th which he intends to tight line. BALD is said to have informed him drainage from the properties should go to the roadside ditch. Because the neighbors drained to his property it is up to him to handle. At the time of observation there was drainage from the neighboring properties to Simon's southerly ditct down the ditch to where it goes sub surface to a small pond in a low spot in the front, and from there to a cross culvert under 148th to a small swale. There was indication of some erosion from upstream due to siltation of the small swale. Followed the drainage to where i:t outlets west of 147th Av SE and observed no silt at that location. ' pF�oto 1) Looks east from 148th across mid portion of the Simon property. Pond and drainage Yn foreground drain to ditch. 2) View of ditch on east side of 148th bordering Simon property. 3) view towards 148th along south ditch. 4) Shows ditch and neighboring house on right. 5) Looks south along ditched area t rear of 10222 - 148th. COMPIAtNT INVESTIGATED BY: „s`rv-�-- DATE: Z' 3' ACT10N TAKEN: 2�Z;-`�3. `�J�oko w��}. �a�_y Sll�ttv►.� S�.d� �t,�.s v-o �ro�./ew� .,i►� .,r�a..�' �-e �is �� --�La� IS �+.o� a.�'^�r' u!� `� '';4.�� ✓ocepf - �, rf� v-e-1,LQ a�-., �,,)p�/ �¢ wtl^ ��`i �, �L�,f 1 �.. �� `No PRna��nn s�nl ' Complainant advised of action possible or taken by. Phone C�' �etter O Personal Contact � Complaint Action Handied By � � � Closed: � OK'd��CI`�'� Marn! 7.1t! kntiiN S ketc h � ,�� .� S� � I s�� SE�o2.w0 S� ( � " � d�c- �� `�E--� . . �__z, t_.��_ ,,�_ . e— . � . E .— �t tf"" , �..�� ,Y ��= � �i��e,,� � � � .,� �rL� , , � �, � _ � ' � � . - � � f � � ', e_ t`" L` ��c— -� s"c— - �— �O� !'� _ �—_ .. f'C—.ti � � Z �� !DL'tL � i� � � � � � � � � � . r . � � � t � '�♦ _''�� y i+ � -� a y � ' �N � •�• �` .. � /�I��4'f; ��' '� O \ y� �,A �, y: pb �U `h � Ir v � O W �1 f� "� �^tr 4' 'a�b � .� f �.�Mr+�. Y ' `l .� n��vu �vu�v � T utrHK i rntrv � �r ru�uV w�Kr�� SURFACE WATER i�tANk�EMENT DIVISION � � � � COMPLAlNT iNVESTiGATION REPORI� � � —-- �e Rec'd: F � NATURE OF COMPLAINT: %`� j� j/J� , �� Z� ' � � SEC �TWPZ3 RGE-� LOCATION: � C�DSS STI�LZT Fn�� }DD� 13� .CJl�� KROLL PG. ��_ COMPLAfNANT: ��T DlP/�L,E . ��, 101id--S5 ��IL D{ST. �_ Address / �Z � � ��1, V 5� City State Zip WORK Z S's 9 S 7 3 DEfA1LS OF COMPLAINT: 7?Z/� 77� /��J y G/�� - C,�s � ��Z��N<t cl�zt�T7o� Pr�ts�v� � C�N�� w�s � e��fl r��6�,� �rc�i� � GU�TZGI/�l/�' -(?�i/ � /-�1?/� Gl r/ss � �'�-�T F�/� �DGI G- /,//,/J/�, /�A7Gr/N GI/-� ��/s�i��1 f � /S i (,ING��1l(/�t/�Z'r�'/� ��1� �fZG�S�Gn/ /S /��/ �l��G��. �I G r� !�/C��"�P� /5 �=/�w i �� - — 3�'r ,� 7"i��S � � ��Gw� �C2� U� ��/S�Or�Ii��. : . Gf/Crs G�Q/� .7"�� i m on��n1G- r�o w u��{r� r ��v s�v�ea� , ". ?LA}NT RECEiVED BY: ��/C�� I S �3� o w �I��c��l,�1 A-�R iti �-! -9 j ' OF INVESTiGAT10N: Sketch on reverse side:Yes No D Photos:Yes B'3 No❑ Qnntiry On site 2-2-93. Spoke with Doug Dipple regarding siltation in a swale as a result of run off from property identified in 93-0096/Simon. There was siltation to a small swale that accepts run off from a cross tile under 148th (12" conc). The stream tended to wander thru heavy brush and ferns and then culverted under 147th near 102nd Av SE. Where the stream crossed the ditch on the east side of 147th and at the outlet, there was no signs of silt. It appeared the silt was deposited on the property by the Dipple residence. At the time of the muddy water Mr Dipple felt there was a speed of run off at .2 cfs, whereas the run off normally flows at approx .02 cfs. At the time of observation run off was clear. Photo I) View of run off at the outlet of cross culvert. 2) View of flat area where siltation occured. 3) Outlet west of 147th that drains to large pasture. Approx 1/3rd mile to May Creek. 4) View of ditched area at north side of 10222 - 148th that is said to drain wetlands. �OMPLAINT INVESTIGATED BY: � DATE: Z-3� �3 �CT10N TAKEN: z-23-q,� , j�( o �� Z-�-� -t 3 . �u a.,,�rw,.,,�, ` �N�'� bD�S ��1D/�� :�omplainant advised of action possible or taken by: Phone Q' Letter D Personal Contact O ;omplaint Action Handled By YI �'`1�- ��Ci�c./��i�--�- Closed: � `I— 7 3 OK'd:� Nsr*. 7.s�e N+:Ka�s �� Sketch N ��/�r+� 5� scals �rt � sE �oz�� sr- � kc � fi . _� _�` y,�� r ;� �. � J� � ``� �L � ��` `�� oz�-� q� -•�..� / � ��` - � I , r _ � , �IL�'CMc ! I ��: 1 ' , , r=�=�• � . _ _ . _ ,�.,.�W . .. � � KING COUNTY SURFACE WATER MANAGEMENT DIVISION DRAINAGE INVESTIGATION REPORT Page 1: INVESTIGATtON REOUEST TYPE � "ROBLEM`acA�� .ED hoo►�►rJb� ER�y►o�1 _ ;eived bY:R a�K� Date: 3-3o-�t� OK'd by:��^�� FUe Na 9 77 -D Z3� Received Iiom: (Pbw print plainly tw scanninDl• (�Y) ��) ' Mai�i t... NAME: K�� C�p��n�. PHONE Zlt- 5l1�3 9 O -6�8: ADDRESS: Il�7nZ IQ��' gvG `� City �--�t-� State�.J�• Zip��j$o� Location of problem, ff d'rfferent: CHARGE # Details of Prob/em: �' �-7�iE G/t't.t. �� py>o�ti��.7v�. �R�I K�Ry cr�o� ��*', a7t�.v,sd F�r Ti+� �.rrN aara�� io-r i� T� c.�p�.►-,,�,�r'S G�,�►m� s+��-�a ►�e��Ay �,.�� 1z-y cc�9i2�, L P�m►r w/}s �pPfhe�r�y �ss�� c3� t�!>c� ro►z I—"th-s �,•Jo,��-� , A 5 w,��t wA3 c��-AvA-z.� a�, r►i s G�� t,o7- wrh�t� oe��i,.,�}��7' . �►�� Ar 7�c G�v►pc.?�iN�T`5 a��v�A-�l. n5 ►Zwsv�lz� �N. �d�A-i.r��. ��o�b��4 '�D ��i� c�- T� �pc.�r�.9-ry r's D/�,.1• 5 r rr�z T'tr�> > lEur7yz.�{s {�i`�oj�27�,+ I kST�k /'�N J�7DS �►►�NTL/�►� A-�-ox}� L�.swt�ria�v �c.�S S 17/�,.� f�D ovZ.t.-7-s r►v� ��P>� �h� s� t��bwH-y t�►r� �,- Ce�p��,Nn,�.rr `5 Dlw GvLv�e,: l�S� t�iv Y '��u S ��3 U�� /N ��.�s� �v�- ib►�P r^'�► 77t� J r'h"-L�N c /}•�I� f�2oA►`i b i4wl}-y T�-�C' �rry►��i,�/9�►Ts D�w h3r}s c- '� rr.s�-� � �� fw G��s�er r� 6��'''' ,g.�,� s�. wtt�¢r �� aC v�C ? Other agencies involved: (Give details) �p�3 �L�,��n�p.L f)R¢��o /��yl/r� �nR� d n��o� � swM n��. � , Reported Impacts: # Properties: Dates/frequency of occurrences: _ Home Fst-�r c�w►ZiZ�cc dN �t't�R�N Z2'''° 1��r3J _ Access road S�u`G G�� p�,��r.r ��; Septic system _ outbuildings, garage Yard/landscaping Other property Stream, lake, wetland Commenls: A��T N�7btt8o� �� aa��.,,s Z3� -„� 65 ,��,��o��.� � S��►�n�. . ................... ... ^. . - � Z � �.�.......................... i4�A��Mlf�11wMWRRMRffRf\�RRRRR\rMfRtARRRTO��f�MPt�b:3Y fiAtv#:�3�41tJT�F30GAAM-5fJ4�FA�f'/�a'A'YRVti'y- �' IY�yY/►. Ifl�fllV�f�►'sf0/#i►.lririTAM, . : .'.�:»..v:nv::.:.Tiiv.;:-�:v.i..�•::w:.'--.'S""y. ' . �� - +ti.�::.: ..v._.v�n �v.w�.x�w. ' .n:Y.Y.r%4Wi%<JC�:vW.< '��'')YJGW.AF'ni�r.wv.4V:•ihFi.�i�v>�.�.0��.�.�w�..w.v�.ni.w�ww� .i.4+�n.w.C..n+r+�vn+✓:Nn1v.v.v..�>..oT:+V." ...>.vWl...L.J�.vJruMLi:v>+Wh.::-m�v..W�.-f.:..A.v.n...�� ...-+ni�nv.Y.4'r. '" 'ACOf4.3{DCfn Location/Tracking /nfo: 1/4 S2 T�3 R� Parcel No. Type Basin rj Council Dist� DIR Ref/Chg No: City Field investigation needed?_ 1t -�ame: Block No: Lot No: .�.�uon takeR: Assigned to: Tumed to on / / Initials: KRQLL �U� THOPIAS BROS �`�EW= �f/ Z7i"I � DATE CLOSED: ��/�� OK'd:� OLD: �5 �2 � . {��e,�. s��43 � ir��o Dn�s �z��i� � rZ.1 - n,., ��ll/9� �d+�c�T� /� - - --.�.. ��"1.�, v ►.�1.�,��nntt �t J`�l�II�Q NOISI/1I01N3 W3Jb�N�W..a�,LVM��I��a[1.�5 ._ �;.�_: _ �_ �_.� .��,�� _ta rv��co��-�-�,�,-n�-� ; .�..� . ��;1N1�{.�.�, _ __:_��_z-. DRAINAGE INVESTIGATION REPORT Page 2: FIEtD INVESTIGA710N ; _ . , � ` �� -.. . ��.-�Y�E;; .�-_ C� F�e Name: /J� T'Z ��(/, - <�j�� F�7e:No., — �ljZlO� I�� , - -�,._ �� /�. Detar7s oflnvesdgat;on: Date of Field investigatfon:�/�� Related Investigations: g3-0086/Simon. Met-witti��1r Coziol .and .Bakamus and walked the problem site. Recent heavy.rains apparently a ta�ed tl�e��8"ADS dr�ain the property owner (Simon) put in recently. Water went. down� tFie'•ditch dug ,on the east and norti�'roperty,lines causing erosion in thg�ditct�es.:and filling :a drivew '' cro�ss culveht, causing water� to•over�top the private drive and started to erode the R/W at t roadside ditch. It was pointed out that the east and northl�itches were dug on other peoples property_(Bakumus on the_nort.h-out_o._f_town_ ov�ner on. the=.e��t�s__ ,_,___ ,, ,.______._ ..:_�.__ .,__.__.___.: Photo 1) Looks nortfi and westerly from SE corner of cleared lot. Orange dot at left is inle . � � .8" ADS. . . . _, 2}. Loo�s south. �along east pr.op�r.ty .line a�� :drainage ditch: Lot tnarker s�eerr mid-righ�: � - 3}" �hows ditch on Bakamus property draining to west. 4_� � lliew of ditcM and si}t depos�it �-by driveway cross culvert�('near recf�dot): ' � � � �� 5) View of natural drainage swale. - - 6} Shows erosi�on on private drive west of�cross culvert. � � � � � 7) I�ooks, north on _148th where.. run of�:from pri vate,drive- to 10202 �roded secti,on_af r. shoulder. � � �" ' � ` _ 8) 3" ADS outlet to roeked. rQadside -uitch. •- � - _ � , , _ , 9) Looks north on 148th where 8" drains to ditch. _ . , •,lOj_Shows seepage from soil that looked like- oil with bl�e sheen�to water: �No petroleu smell noted. . � _ � . - - - . , . . . . . � � �� .- .. _ - _ � - - - . . - , . } . : . . _ . - ,� . . , .- � - - Sketch: � j� ��c.�. - . .� � • - . . fi� �, _ _ .. _ _ _ _ . ► �` • �- .. ,�--- . . -. � _. � . . F-- . r� . I _ . . . . � � � �� rZ�,�;�� . . . �� • � _ � � '� , ; � . l � � \ � .z�r�mc � ` • t . � � I � �, l--- a.-- f'�- . � ' - - . . . . • . - . �1'. I � . � � I ��{�� __ _'�`'_ - t- —�"- — -'►'.'-- - - - -+-- - —"`� ' - �(1) ! �nZ �� 1 �, T t� , � rk� r tL �c.r�c T Date of Report:�/ � /� By: /4�� -Gl�,/�.!-c,�,�-.,� f . Complainant noYfied by �� by �hone_letter _ personal contact. `�"��'^93. S?'�` t w`� (�, C: ��-..,,'� �, .��DES' - ��►�Q _. K1NG COUNTY S�O'RFACE WATER MANAGEMENT DIVISION �' � DRAINAGE INVESTIGATION REPORT PROBLEM Page 1: INVESTIGATION REOUEST TYPE � (.�)M l��r- . 'ved by: Date: 2y � OK'd by: � Ftle No. Q _� Received fiom: �Pt�asa print Iainy tor scanninp). (DaY) (Evs) NAME: ��m�}P) j ICI�.{L�� PHONE . QjZg-��'(X� ADDRESS: � (�Z,'Z,� ��{�� , City State Zip L�cation oi probtem, if different: CHAP.GE � Detai/s of Prob/em: � gw� -Fm � 93-6a� N�IG4�60a 'S R��f �� =L.ODf�l.�6 �-}c�R P�1�`Ty J R�Gy-T�1� CD.r�o�ql� "�I,3 ��'I,�Z- s/2t0� 0 � � .��-�-�*` j ��-� .. - �- n � � � 'i other agencies involved: (Give details) � + Reported Impacts: # Properties: D a�P� !f�e�n�P n� Home Access road _ Septic system _ _ outbuildings, garage _ _ _ Yard/landscaping - _ Other property Stream, lal:e , wetland Com,rnents: � .,...,. _, . . .. ., ...., ..., .....,. .,....��.1'O E._.�?Nl?L'TD 3Y G�'�U�1�1� Fr�Jrp.n.1.�I,ST�.Yr'..... ....... ....a..., .. .... .....,, .. .,.,..,. ... . .,......,..,»......a......_, _ocation/Tracking lnfo: 1/4 S 2 T 2" R 5 Parcel No. Q��3(�J -qo�q -rype 5asin� Council Dist�_ Dln Ret/Chg No: City Field investig2tior. needed? P'-'`�2me: Block No: Lot No: I . _ . taken: Assigned to: Turned to on / / Initials: KROLL THOPIAS BROS �EW= �27 �5 DATE CLOSED: �! /� `T.,,� OK'd: `' OLD: '�3 �� I �",I$� �a� ��. _..- - _., , ' njr-�.� . ,. .� . DRAINAGE INVESTIGATION�� Page 2: FtELD INVESTIGATION TYPE , � ------- F�le Name: . File No. • _-.----_------- Detarys of lnvestigation: Date ot Field Investigation:/O / � /� Related lnvestigations: ' Pro ert to the east of the Simon's has been cle .red of hr sh. Slo e in this area 1s ' from SEyt� NW and would naturally drain towards the S?mo!! ►�ronertyP ?'here is al�o A ciit�h behind properties to the snuth that drains into a �irainaoe system built bY th��rt Simon' s to �rain to the ditch on 14gth. In speaking to the Kozinl 't and ad�acPnt prd� owner that did the clearing,. the p�arpose was to c?ear thP br�►sh and �lant grasS for � . pasture--no ni^dd111�. • � � � Photo 1) �ooks e�st over the south end of thP Simon foundation towar�s cleared �r��• 21 Lonks SE over foundation at additional clParPd area. , 3) Looks s�uth alnng rear of adjacent propertv owner where ditch enters Simon � drain system. 41 Looks west towards 148th, 45j Vooksfeastctowardsafo�ndation�from�clitchl�wherp ba�k y�rd dra�nage ente►^s rn�'� �i r�itch. SketCh: f�8� � .e- �r►.�a.-Q 3�r`�_ ~ . �� -- ,� . S� . - � s� . �" �� Z �t�� T �k� � , l.�'�A ' !N". '' T � g".49s� � .'i'(�i �--_=-=—— — =-'—_,--�---_ _ =r'=_- �'� ,' Io2Z2 � � K � i I ��.,�r,� . , � r Date of Report: /�/�� By: � / Complainant notified by �� by -�phone letter personai contac� Io,�Z-q3,�` � nat� -�fr. i�c�v�.•�. -t-p e-a�( —, . � ��.. .,nEc �i-�- 4: l_tt . .. . _. i . . �� KING COUNTY SURFACE WATER MANAGEMENT DfViSfON DR.AINAGE INVESTIGATI�N REPORT PRQBLEM page 1: INVESTIGATION RFOUEST TvPE C� �fbt�o-we . Received by: � C��D� Date: f� _ Ig �� OK'd by: Fue No. c�3_O ' ReceiveD �i�m: (P►�as� prirn plainly tor seanninpl• �Yl ��'�) NAME:_ _k(�,,2� S�►� oV1� PHONE BZ 8— Q 7�p ADDRESS:__ !O Z ZD /��j�` �Q S� City �,�n`{'�-y� State W Q Zip� Location of problem, H different: CNAP.GE � Details of P�ob/em: � � �v,)o ac�,��-+,�,i,�9 �.1,�.Qd eu s-� o-�' -�-�.� 1- a r�sZ �►vY,e.�. 1 0-� I� w�.e- � C[�w�.e.d . �� o-,.,.e_ dae� �o`� wa�•�� c�,s r�ah ��.cv -f-o �'d�c.t;c.�. dtt , �as �-��. -�w o�h o� `� S� r�,,..� Pro p�� , . � a�,�.� � l.bo�, L.e�► Cof!-1 e �S also , � �..[eo►�tLC �c�c�a cu�. abo� � j � ��L" �S w�n h o(� U�{nk�n�h r'^�w'"'y/ �� Io � �0 0.� , � 9 �'�9 �U'� � I�a.r e� 1�e� �S�u-eaC , 1�(ea.� �a.�Q �i r s`F, � � 5�.� �3- o8s�/ 11 �o�t . ► other agencies involved: (Give detaiZs) re-�'o� �i,y DaV�.�p�„c.o,�-� Reported lmpacts: # Properfies: Dates/frequency of occurrences: Home Access road _ Septic system � _ outbuildings, garage _ Yard/landscaping _ Other property _ Stream, lake, wetland Commen ts: •••• •••" ••• • "TGf:_COH1?C�TD'aY.�'�i.�INT PF30GK:W:ST3,Fr y , , • •• ; �•••• •,•••:•:�:,:��: ��.....�.:wV.w�?...w�Mr .�..L..wA..r:......:+w0.+Th5.»vi:�A.Wwv:�_.. ' w.nv...:...n..i.w.»w.i..�v.w+.wwrJ:.DiwwVJOw.i>i.3�%wrwi%di:�w..vJt:.wtiti4lPiw-.JrvTl.Yvivrii-i<:JtiY'w�w�'�(4:ii:L3i�4 LocationlTiackinq /nfo: NL 1/4 S o2 Ta3 R (o Parcet No. Type_ Basin fkq;� Council Dist_� Dln Rei/Chg No: City Field investig2tior. needed?_ —�---r �t �ame: Block No: Lot No: �on taken: Assigned to: Turned to on / / Initiais: KROLL THOMAS BROS �`�EW� ,��,7 �S DATE CLOSED: J j / .�� OK'd: � s� OLD: 3y �� `�.3��5� Sr� KING COUNTY SURFACE WATER MANAGEMENT DIVISION '�'� DRAINAGE IlWESTIGATION REPORT PROBLEM j'�Q/�/� Page t: INVESTtGATION REOUEST TYpE � '_�- " _ ieceived by: �'� � Date: 3/7/9y OK'd by: Flle Nc 9,4,—�1 77 ReGeived from: (Pl�ass print plainiy tor scanning)• (paY) (Evs) � NAME: �Q,�'C/�I S!/Y�d/7 PHONE �a8-�700 ADDRESS: City State Zip Location of problem, if dififerent: __�� J D_ �U��- S� CNARGE # . a 7 Details of Piob/em: � g q�R r� � 8 � ,Qv;/c%ri9 a neuJ ho.>-�e, -�ey l�a v� 7-r�ecl f0 O�i V�✓-�" -�/�� R�/G �7 wa y �'/�m Th e. •�o-f-. T�i� Jrc�.ir��9e sy s fe�-► i s S�,7/ no�- a d�ua-fG er�ovyh. wl,a t -e�se � �an She d�- =,�` (,v0 u.lc1 L�-�- -I-p m e c t y°� a n S r fe. � Other_ agencies involved: (Give details) . _, Reported Impacts: # Properties: Dates/frequency of accurrences• •�ou� by�� , _ Home 93-�� _ Access road � Septic system -� ' — � _ outbuildings, garage 9i- Yard/landscaping q�_n�, '�o�' _ Other property 90-8►4�s Stream, lake, wetland S9-"� — , �-n oR.¢� , g7�.�� I Commenfs: .... . . .. .. ,. .,.,, . RRRMR1t1tR�!lkRR............."_"'.............'_'"............ . :. . ....... . .. .... . . . . .. . ................ ... _ "...... ....... .......................... , R!�'f1t1tRk1�Rt1MRRM4RM1RRRtf ftR'� y� �., y�� y��s� �}:�-.vty4t:T.;�:'.::.>'.L ":�:�.v:.{}:i::-... ... .,,.u.�:.�.�:;:�.�..�,..s�>�.:.: . ...::.:::.:::�.:.v O t�MpL�[3:�t:-w��r,i��:Sh. asrrr+.aax+rw��r�nw�m � �r+�. s'r rriw� .�;..owtAwsawt:.oa+'... !}ldQrYYY1�JJ�� . ri �.c:.o.w.wtw:.;a:ww.:vat,w�..v.c.�:"„a✓'.�:w:.-x.>.<uw:.-...v..�iF>;:wc:,�::.w' ..:. ro,wa....' ...„....a:�...aiv..�,a.......,.::.:.c.n.wa>�;xa....,..r.-:ao:;c.,<.a.,.w�tir.c..��.»`�:a,.::a?ciaaC:a''•.:�:' Location/Tiacking Info: N� 1/4 S�To�R 5 Parcel No.4o"}a30590$� Type Basin_��(/ Council Dist� DIR Ref/Chg Na City Field investigation needed?_ ----�-- ?lat -�ame: Block No: Lot No: � `tion taken: Assigned to: Tumed to on / / Initia{s: KROLL �D1 �-/ THOPIAS BROS �JEw: �,.Z7 AS DATE CLOSED:�� OK'd: � l `��VT PR�B ' OLD. 3 5E� �o N�A �.�.c.a,�,� l�P�#- �.d��f �"�`�"� �re�''r' de�u2�� °`�.°'z ��~��' �`O�^'�w�, ��s�.�,�� t h�ti... 9 3, a�-- � � , _ . . � �-- KING COUNTY SURFACE WATER MAr?�Af�+� .�1T DIVISION DR.AINAGE INVESTIGATION REPORT Page 1: INVESTIGATION REQUEST Type C ,-Received by. J'� . Date:6-ZD _ C�'.�/ OK'd by:. Flle No. 94_047� Received from: (Please print platnly for scanning). (Day) (Eve) NAME: /�q�� /l�GZaC�I?C� PHONE y5�/-3959 .235-. i ADDRESS: /0� ! 7 J`�7�' f�l/G S� City ��{�,-� State Zip 9'S Location of probiem, iE difierent: Reporfed Problem: Sj�e War7�S f,0 C�nC� ,�� ow O� Sur�'arCc- t,c>a.-fer Flocvs. The t/acant ProF'�e,�'f�' - n ex-� fo �er ,t..o t �s Co I!e�fi'r-x� th e cc�a��+' rw� �, S�e wo�cld /�,C� -� enclase t-�e, h�,,- ho�s�. Sh� �4s dracc�r� d��-c� vP �bo� h� �e �n9 ��rer�tty . q d tagra,�n o�a�l. She. �� yo�ny to t'"V n s. �S eQ GL'�F.a�C. J b�y -E-h� Vac an�- h-of: Ptat name: �yAy va�ey co-Qp ��%ty �dd Lot No: /6 Block No:z, Other agencies irniofved: No Fief¢ Investigation Needed �� O�s) :i4*�t:£f�*�iyi#zR�i:if�i#':�i�;4:�E�Rit:�tfii��*iF�E�tit,�,.,-#,,T::....,....#±.>.::. ,.:.,. .}:.+.. }.......,,...,..;. .....;..{�..i.�:,.�-�i-<.�.'<--.. .: .: .....::�;<-, ...:•:..::..,.:.,,_.:.::-.-::,:.,.,,.,,.,. .:.,_..,..:-..:--,.,,..•.:.� ;:r.-x ::r�� :-:rr:•- 7R 'ItI p ��{y{}� } pV a }�`�.{ �i�.A�#!t#R7l�t1[*.**#'k##ttR�1[:lt7t#:11�*f�RS�:**#'�t4Ei ......:•, �.v �..�.:,:::.�.. ..ox•�:•::;•::�.r:::-:._:::r:::.x... �:GJC�..: ,. . . :.:� .::::zJ�.. `:iklt�< �ti :;�:_�f:^Yv....i:. .......n::...:..:..."': ""..... •�t....... ::.F..........�... .`.>`.`..�.4�....?T'i�� :•.i/::.v:.eP_�v.' +!:�V��<g ..•v.,._.,.... 3-.,..oF..:.:......: .. ......... .:;•>'•..•�.... . .. .. .4�!iT,,..,.. .. . Y.. ........::�'.".:."... ...i:�:�....A}1H'y;►77:.�:#:i.i�>fi�::::�:.;�;::::•;:>:;-:�x? :.7:?i£•:t:'-`.�<::;;::'.::.:::: . . ...v...nWnr+r.r]M.v�[.A....4.]...X..JC-.Nn-F.-�..�.�L.>,.+..s.�.<.•::�+{{AWfOCTW.i:ShY.WYn-»H.�.xvJA+3).CJavA:J+hv.+.�x.iv::J�:v:si:''v}»C'iCrn'9TY.T'YiiS?:YiiiF}iC�YiYrN:{iC4n'L4W:O:S4:"vri%H:i.:'f..:�i:�:i.:1::•Fri:i�.G}".T�S.�YA�6ti'.4Wi4i?hY":'i�:iii�'•i".✓.C::�v�ii. /� 3 Z3 S Parcel No.S23D� O !6p Kroll SDO E Th.Bros: New �Z� �7'� 'I �/a s T R Old 35 D2 � Basin /yf��/ Counc�1 Dist �� Charge No: RESPONSE.~Citizen notified on �17 by .T�. phone� letter _ in person~ � E � �e�ei-�-cd � ODEs FoR R�"rl ctSc �cr.r�.'t A/So Cu//e0� �Poao�S � �a�G . �th� d►f-ch on -�-ti e e ast s�'o(c a�' /i/8 n' s r. c�ear�ed �vT .� �e.t n-�a,v�nc Kno�.o +-�a,+ she wo�.�.�d need a. p�e,r-mit, a»d fha+ ►.ve •.vowtd IJoT' be i n�7 est��-1'�r�9 ..}.�i s ma.--+�-�- DISPOS/T/ON: Turned to on by OR: No further action recommended becau: Lead agency has been notified: �,Problem has been corrected. _ No probiem has been identified. Prior investigation addresses problen � �. See Fte� I �Privafe problem -NDAP will noi address because: I _Water originates onsite arxl/or on neighboring parcel _Water originates on KC Road _ Location is outsfde SWM Service Area. �Other (Specify): I N�c��p�J L,�/ DATE CLOSED: � /o��/� by:�� aXlr�c, t� t u�V��,�'/.QQ,ttp�..�� , J NU151/�IU 1N�VY�JV1`1vYv t7�..Lv1v1 �.�v�t�i �� n1-�`+i �� `��^ — . _ , , � KING COUNTY SURFACE WATER MANAGEMENT DIVISi��:. DRAINAGE INVESTIGATION REPORT " � _ Page 2: FIELD INVESTIGATION ,,- ,�_�.�.; >efar7s ol lnvesfigsfion: The area of.concem has a slope from SE to NW. The roads are shoulder type with open ditches and x-tiles. There ha� been recent complaints regarding drainage that flows to the lot being inquired upon by Ms Nagei. There appears be a large area that drains to the ditch on t 48th upstream of the x-tile that drains towards the Nagel lot. Concen had to do with quantity of water and siltation from clearing and construction. The x-cutvert on 147th by the Na9 residence collects water from the drainage under 148th, the ditch on the south side of 102nd and west of 148th, pl� some run off from the sloped area between 147th and 148th. The ditch draining to the x-culvert under 147th is gra iined and mowed, providing a sodded ditch. Did not observe siltation or erosion in the ditch or at the outlet. There d � not appear to be a disgnated stream as such at the outlet and thru the vacant lot, but there was a difference � vegetation coloration as if to identify moisture. Photo 1) Looks north on 148th from driveway leadin� to 10220. May Creek is just prior to end of road. 2) Looks south on 147th from 102nd. x-tile is in first part of ditch. 3) Reverse view where x-tile is at hole lower right. 4) x-tile outlet is at buttercup line between two posts. , 5) View of lot of interest by complainanL � � , I '� ketch: �y�� A� SE I � �— SEiotMQSt r— :.�— .— .t-._ � � �_- ��__ . � �`i`t.�` � . . ��Z,, r � M �, ,y A-c i A � � iZ�'c�rr�_ �� f � ! �� 1 � r t fi fi 1 � � ;� �� , � � �; '`. lnvestigated by FJ �I^y 2 c.��,�,,...,.� S� Date 7 -l� -f� t v , � KING COUNTY SURFACE WATFR AVIANAGEMENT DIVISION . �" - " � DRAINAGE INVESTIGATION REPORT Page 1: INVESTIGATION�REQUEST Type � �cehred by. � 6�L� Date: �-- / - S OK'd by: Fqe No. 95- a y� . RBCelt;;v fi'Om: (Please print plainly for scanntn9l. (DaYI IEve) � NAME: G'J�!v�{ � �aNe� c L j PHONE �,SS- q�4 p ADDRESS: �D��S ��7f N �1�� Sc Ciry /�c-�O� State 1�,� Zip /�� Location of probiern, if different: Reported Prob/em: C L�sS 1�- Sf•eE?�/Yl �.P�f✓c�-Sc S �prhO�/.�J��t/'Ts ��o�� S�/Q� �.S C'�/c��G/�J�- sc%�t= �iP°S /l�rJ ��: ".av _ _ O� tJ`'�/G L �t�/�Z d�►�'l��l l.��i �-d�i�� S� �e N� T S"(/irS�G/�� C�Y�✓�/GCL � �tJ.vT� �S�S�"�Gar `/ �Lr/��}5t �l� � o S'c% � /✓��T ,�//%/� �v�' � /�/�/Ci��iP , Pl.. ._. ��: r��,, , � ,�. , � Other agencles irnotved: No Fleld investigation Need� ��,5� �•-��:,�#��►;�#�rr�:��q� �.<-� :�--��:�:�;�:��#��- -�� .... . _ � . .. .. ., -�---�--- �-- � . ....----��- � -� =:.� ...... �. � � �: :: n � ..; .: . . :.--;� � - � ., . -.. . . ...>�: �--::.:�: .. , -:��;�� . :: - : :. . '��R�°1•:a3'a.: . . • .. -:..:w�::w6'w:a::oe•. •.• �'.soaaoui�o&,wrv.ra ..., SF 3 Z 3 ,� Parcei No.�776y0 OOZO �rai Soo E Th.Bros: New 6�6 TS t/4 S T R Old 3 S DZ Basin/yq�/ Counc� Dtst �2 Charge No: �� 5.�� t� —T RESPONSE: Citizen notified on�-1�S�by �phone_ letter _in person 95-0 yo3 ��. �-�'-l�'�- L�c,wt�-;s. �v.n� � 1 f- 1- - i�_. 1 -4 f. , _� ;U !� ��t.1 � �4 ,� �C ��JCyw� --�� c ��s��C �o l�J� �' �� D/SPOS/TJON: Tumed t0�On - �/�-/�fby_ ,-j ' � . . � � , � , , , Lead agency has been not�ed: _Problem has been corrected. _ No problem has been bent �,_ ., _ ' ��-.r ! , �� , . . + , : � � ' .�e �,a # _ _ ---- � Private problem-NDAP wlll nof conslde�because: Water originates onsite and/or on neighboring parc�-� _ LOCatlon IS oUtside S1NM SetvlCe Area. __ Other (Specify). DATE CLOSED:��by. � � ��- � ' '• KING COUNTY SURFA�E WA�ER MANAGEMENT DIVISIOh ENTER [d:)[path]fi lename[.�t�� S��Ac�i�E��'��,j,IGATION REPORT �� Page 2: FIELD INVESTIGATION . � . r Defad's of MvesbgaLian: . ' I� complaint 95-0420 DONNELY, CLAUDIA ' Investigated by Doug Dobkins on 5-3-95 Meet with Claudia Donnelly and her husband at their home at 10415 147th ave southeast. The Donneliy's are concemed about the small creek that runs through their property. A class III stream runs along their west properiy lino; Mr. Donnelly thinks that upstream development is causing some erosion amd saturating their property. I took Mr. ' Do�ely on a tour of the area to show him what is draining towards his property. There is no new development apstream of their property. The drainage basin consist mostly of grass and pasture. Most of the houses are located on large grassy lots or on 5 acre Uacts. After driving the area wiW Mr.Donnely I didn't see any violations or problems in ' 1 tlus area with the drainage. The Donnelly's live in a low azea were water collects in a small channel and drains to May Creek. The other concem of the Donnelly's is a new plat that is going in on the north side of their property. This plat is _ actuall located in the Ci of Renton. There is a outlett ditch on the northside of the neighbor lo he northv�w c1u h event y drains to May Creek. T'he Donnely's wani to know if this water is being accounted for by the New Plat of . I said I would check into this for them. I explained that the county has no authority over this plat but I would check on the plans. :;; '. :�-: <�; ��t:; C e c :::_ :n�:� � m �� • ... .......... -•--..... ��>:� ............ :.........:..:: _ . ............•:::::,•::: .::.::::::::::::::.:::.::-:::._:: . ,:::::::::::.::.;;:.- _,•. ...... ....... -.,-::::._:::• :::::::::::::::..:..:>;::=>;v>.=>_:=;:<;:;,:>:;<>::>:::.:::: .......--......:. t� �-.....---..-::.�:«.::::.;.;:-::>;>::.;::-:;.: .........:� .....::::........:::...,.:,..�.,. �-....... . - :::........ ............ � -�:.;-::::..:.- -�.......:.. ...:..�._::... C�'l ..._.... ..:...::::::. :::� w�t. �r. �� :�.;�,.£� � .,�.: $ ..,�;��, n«�y 147th ave se '�- N � ti� �� Irnestigated by Date 10/09/87 11:4J ?S'LU� 'LU5 baU� h L bAhL UtY1Lt �� yi�� 4Juuci �i .✓ __-- - � a3� , 1� � .. OCT 8 - �gg Ff. .f��1_r. .�_:!-�� :..�t� ir1:�i�r �?� l�Y ;i�r�f'1 .::;t 10415 - 747th Avenue SE �'''S"'"rr`��P��A Renton, WA 9B059 !��r�::�a October 6, 1997 � ,�,;�:��s:.�:'.s�.c�.. --•- ,.-.ti n,-. r:ii l-.::�4�..d�?F� �., �� - �`.: _::�:i?f'�r Kng County Executive Ron Sims �=�w� King County Court House �; -rf}, �wf3 . Seattle, WA 98144 � P�-�- �. � . Dear County Executive Sims: p�.�tQ It has been two weeks since I sent you my first letter. i haven't heard back from eith`�e�7, you or any one eise, so I figured i'd write again. I made a copy of the video tape of Greenes Stream from March 19, 1997 and need to know if I should send it to you or someone else. Several years ago, when Gary Locke was County Executive, I wrote to Mr. Locke about our problem at ihat time_ Some County people came out and took a lo�k at our t streamfieighborhood probfem. 1 also received a letter from him _ . . ' Please advise me if l should sent the tape to your o�fice or to someone else's office for viewing. Would it also be possible to get an apology from David St John? To have him tell me that the County doesn"t care about us -- we'll only be annexed or incorporated in the future -- Is that the attitude of all County employees about us? Like I said, we are only 3 houses, but our property is being destroyed and no one seems to care. We also pay taxes like everyone else. Since we've been told that the County won"t fix the culvert allowing water to flow underneath 148th Avenue SE to Greenes Stream, how are we to protect our property from future flooding that will only be getting worse? Just ignore it? I would appreciate hearing from you. Thank you for your time. Sincerely, Claudia Donnelly . � JGM(� W�� ss ----� ��, �y K�NG COUN71( SURFACE WATER MANAGEMENT DIVISION DRA.INAGE INVESTIGATION REPORT � Page 1: INVESTIGATION REQUES7 Type Received by: Date:. ��3 l y� OK'd by: File No. 95 �'7� – ------------------------------------------------------------------ . � R2CB%ved fiOm: (Please print plainly tor scanning). (Day) (Eve) NAME: �Oi?f7 �Gl!f� � �(Gu-�u-C� PHONE AQDRESS: �D 7/5 �y� � �e s� City State Z►P 98a Location of problem, ff di#erent: Repo�ted P�ob/em: �� -��'�c��d L��e� Se�e �-fso � ��- o� � �' � �G '�� q �l�t r,a,��a: C��M �� Lot No: Z Block ho: O:her acencias irn•olvect: No Field Investigation Ne�ded r nr.ieis: i�: Tri irx� �k�*xa�r*ixx #`T q�`� '1fl ;'-�-1 ��'.? ��+ `;� - r�w� 2xfi �ix�k* � x}zr � -Y .:: �� r c,., �_ t �� eF� �n��-�cc-�n,i s�as, .S� ,3 Z3 �j ?arcel ��o. I77�o y0 �Q� Kroll ��- Th.Sros: New�� ,,�4 s T � o�a .35�: E2sin /1�q� Council �ist �2— Charge ho: ----- - ----------- -------- — ---�� Q�� RESPONSE: Citizen notified on by _ phone _ letter _ in person �, a� DISPOS/TION: Turned to on by OR: No further action recommended bE � Le2d agency has been notrfied: _ Problem has been corrected. _ No problem h2s been ioentified. Frior investigation addresses pr; See Fle # _Private prob�em - NDAP wil!not consider because: Water originates onsite 2nd/or on neighboring parcel _ Location is outside SWM Service Area. _ Other (Specit��): DATE CLOSED: ( � ��(o/� by�� Lp�� /��.� 6�j} _ _ _ ____ - _' • n _ � . p g�rs__..�s . . � � � � I AUG 15 1995 aECE�vEo � d � 10415- 147th Avenue SE KING COU TY E CU7[VE FElCE I � Renton, WA 98059 � w ' � "Y August 10, 1995 T�` i P;;�' !C Yi01�;:5�J�:t�CTOt�� DUE DATEs AU7HOR � County Executive Gary Locke sUB�EC7= King County Courthouse Ac7�oN Seatde,WA ESPONSE FOR EXEG SiG. ' • / � RESPOND FOR EXECU7lVE I RE: Frustrations of a County Resident R�y��,y�BY , � F.Y.1: Dear County Eacecutive Locke: - � I would like to explain to you the frustrations of a county resident who is getting answers to a ' problem we aze experiencing. The problems I will discuss are partially caused by the county. My husba�d and I,along with neighbors Steve and Mary Keech,live along and at the bottom a. , Class 3 Stream -- it has no fish in it and is dry part of the year. The oounty(DDFS and Surfa�ce , Water Management)considecs it"Sensitive"land. Last winter we had very bad erosion � problems. Above us on 148th Avenue SE a property owner clear cut his 5+a�cres.The stream j runs through this property. We aze getting run-off from his property. Another property owner � (Blackmun) lives at the corner of Staie Route 900(Renton-Issaquah Road)and 148th Avenue SE. Over the last year or so,he has been clearing his property(which he has every right to do). Now �� we are getting additionat run off from his pr+operiy. The county's part of this problem comes from the drainage ditch down 148th Avenue SE. Half way down the road;a cuIvert diverts the water � , under I48th Avenue SE and into our Class 3 stream. Now there is even more runoff water for us. ! In addition,there is runoff from a City of Renton Development called Summerwind. The City doesn't even acknowledge that this is something they are to take care of. The water is coming down the hill and eating away at the property(in King County). Eventually it will affect us. And in the long-run,this siltlwater/debris runs into May Creek. ' Last Apnl,just to make sure everything was done properly,I called the Surface Water Management people to see what could be done. They came out and investigated. Last July Alan Meyers of SWM came out and again looked at our problem. Because we are only 2 home owners affected by this stream that have complained, nothing can be done.We were told that if a property owner's access to his home is threatened or a home is threatened by water/flooding, then something can be done. Earlier this week Mr. Blackmun was doing some additional grading/clearing of his property apparently with no permit,so after'talking to Mr. Meyers at SWM, I called in a violation. I got a call back from the Grading Department and they said that what he was doing was legal and no permit was required. How can it be legal? We need a permit to fix our stream and he doesn't need a permit to fill it full of silt--it's the same water. Our property is being partially destroyed by the people upstream from us and we can't stop them. Mr. Blackmun wants to put a development on his property and we are writing a letter to the Planning Department to express our concerns. It is going to cost us$500-$2,000 to get a permit from the county and buy materials to fix our stream only to have it destroyed again next winter. It will cost more for the permit than it will to fix the job. We pay taxes to the Surface Water Management System, but we can't use the funds to t , � �. . �., �' • �'" ��• , � help us. We were also told that it would talce 3 months[or DDFS to review our application before we can even start— if we get approved. By then,it will be the middle of winter and the rainy season. We will probably have more problems this year. I know that everyone is just going by the rules/regulations that are on the book, but this is frustrating. Will the county ever help us? I doubt it The records from SWM will confirm there is a problem. I was told by one of the oounty employees that the squeakiest wheel usually gets greased. I will � continue to complain to SWM,the City of Renton and whomever until we get help. All I get from various officials are comments like, "We don't have enough money to help everyone. If you had more of a problem,tHen we might be able to help you." "Maybe you should get politics involved." What does it take to have a real problem? . I would like to invite you to our house to see what the problem is.The people in SWNi realize that there's a serious problem; but their hands are tied. Maybe if you come out and see some of the problems of'us"little people"maybe then someone in government wilI help us and others like us � instead of the"bigger fish". Maybe the money to be voted upon for the new stadium should go � instead to helping people with drainage problems. This is a lot bigger problem that keeping the �, . baseball/football teams in town. � � Thank you in advance for listening to my frustrations. � Sincerely, , `/�-G�f c��/ ` t1Y1 Claudia R Donnelly cc: Mary and Steve Keech Councilman Brian Derdowski � � �-�•_ `� `� K{NG COUNTY SURFACE WATER MANAGEMEN�' DtVtSlON � DRAINAGE INVESTIGATION REPORT ' Page t: INVESTIGATION REC?UEST �_ ' � - Type � Received by: ��O . Date:. . ///� 95 OK'd by: File ho. �5_ OG .—��_—___------------------ ------- +�----�--- --- --------------------- -----� Received from: (Please print plainly for scan�ing). _ (Dayj (Eve) , . _ _--- tJAME: �i/a.L��a/ � - �D�Ji'J`eIIL� PHONE ADDRcSS: �D T�5 ��7 � �e S� City �P��II N State =�P� I Location of probiem, if different: Reported Problem: � �See ��-�h�! �.�e��. =��: �,a��: C��/l1 �� Lo: i�o: � 31xk �o: Ct��: ac��cias ;�volv�: Na �i2fd trv�siiga:ion t�:�ec�d . �::,:.��<: _ . ,. ,� ;.;,�=x� x x .��0:�=:C.^,:tP��i_3�>':"�' �i:- ,- , �„ ,=-- xx;�� x,��,Rx : .� :.:.:-:;.:;.>; ,..., � F�1 ..:�1�'�� r ec�-,-,t,A J.- , ..:...:. .......:� :....,.... :.::....: ..,.,.... ...:...._ . _,.>..:. v..;::... ...,..... ....... ........ ,.. ...... ......,, ...... ... . ..._.... _..>a>: � � 3 Z� � ?arce! �o. � �7� ( � 0D2v k:roll D �� i n.�ros: N�w ;,< s � :; . o►a �5 , 2asin mA C��ncil �isi �� Charae h'o: R�SPD/t�S�: Ci:izen notriied on by _ phone_ letter _ in person ��-Ot�z� �� Q�� q5 - 071Q DISPOS/TION: Turned to on by O?: No f�rther action recommended � � l.e2d 2gency has been notified: _ rrobl�m hzs been corrected. No problem has been ioentiiied. Frior investiaatio� adoresses � — —see :��e #� _ Pri•✓�;e problem - hIDAP wil!not consider beczuse: Water origin2tes onsite znd/or on neighboring parcel � _ Location is outside SWM Service Area. _ Other (Speci��): DAT� CLOSED: _��_�/� b)�: �1 L%/Z-S�c --•------ _ �----• - ... , _ _.. . ,.�-- . P1' . ��_��' -ti-`t��__ ��:�., � ! \�-�� ..- . ��f-' _ ' King County Department of PubBc Works Yesler Building 400 Yesler Way,Room�00 Seattle,WA 98104-2637 G206)296-6500 December 27, 1995 Claudia Donnelly 10415 - 147th Avenue Southeast Renton, WA 98059-42I3 Dear Ms. Donnelly: Thank you for your letter of November I9, 1995 informing me of your concerns about Green Creek. I apologize for the delay in responding. The flooding of King County's major rivers at the end of November drew staff inembers away from other duties. �. I would like to clarify Mr. Gettle's comments to you concerning the sediment leaving Mr. Backman's property. The Surface Water Management (SWM) Division's process for . addressing this type of problem is through the Enforcement Program. . Since the SWM Division does not have the resources to address all enforcements, they are prioritized to best utilize the resources available. As you can see on the enclosed Enforcement Prioritization System worksheet, the Enfo�cement Program does not address impacts to private property. (Private property impacts are addressed through the Neighborhood Drainage Assistance Program (NDAP), which I addressed in my previous letter.) The initial step in the Enforce- ment Program is to contact the owner of the property on which the violation ezists and ask them to correct the pmblem. The Backmans have been contacted by both SWM and Depart- ment of Development and Environmentai Services staff and have been cooperative in imple- menting and maintaining Temporary Erosion and Sedimentation Controls. When Mr. Gettle referrerl to the problem on your property, he was referring to the cloudy appearance of the water flowing through your property. The only identified problem associated with the suspended solids in the water flowing through your property is an aesthetic one. The particles in the water will not settle out of the water until the water comes to rest il for a long period of time. The particles do not cause additional erosion, they do not pose a hazard to wildlife on your property, and they do not affect the capacity of the channel on your property. Although aesthetic problems are real problems, King County does not have the , resources to address aesthetic problems on private property at this dme. '� 1 SWM personnel have spoken with Paul Lumbert of the City of Renton Public Works Department. Mr. Lumbert indicated that he had not actually spoken with any King County i � _ _ Claudia Donnelly � December 27, 1995 Page 2 employees regarding the County's policy of working in potential annexation areas. Rather, he made a general comment that at some point King County would stop worldng (and spending money) in an area that had been, or would soon be, annezed. In general, this is an accurate statement; as I indicated in my last letter, however, the NDAP will continue to work on a project up until the date of annexation, at which point King County will wait for d'uection from the new jurisdiction on how to proceed with the project. Mr. Lnmbert also confirmed that the drainage facilities in Summerwind Division 3 have recenfly been maintained and are functioning as they were designed. I regret any confusion created by a lack of communication between King County and the City of Renton. King County personnel are aware that Green Creek is a tn�utary of May Creek, and the SWM Division is cutrendy preparing the May Creek Basin Plan, which will be submitted to ihe County Council and affectsd cities for approval in 1996. The Basin Plan is a comprehen- sive study of the May Creek basin and includes recommendations to improve water quality, irnprove wildlife habitat, and reduce flooding in the basin. The Basin Plan does not contain any recommendations for Green Creek and does not identify it as a significant source of � sediment or suspended solids. � Thank you again for your continued concern for Green Creek and the May Creek Basin in general. SWM has many volunteer programs for people who are concerned about the water resources of King County. If you would like more information about volunteer opportunities at SWM, please contact Anne Bikl�, Cedar River/May Creek Basin Steward, at 296-1908. S' , P Tanaka � � Director PT:becso � Enclosure !I cc: Paul Lumbert, Office Engineer, City of Renton Public Works Jim Kramer, Manager, Surface Water Management Division '� AT'IN: Dick Thiel, Manager, Engineering and Environmental Services Section I , Anne Bikl�, Cedar River Basin Steward, Watershed Support Unit . - r ' 1. . KING COUNTY SURrACE 11�ATER t�1ANAGEMEN i DIV)SION . . DR.AINAGE XN�VESTIGATION REPORT � � Page t: INVESTIGA7{ON REC?UEST Type � ' Received by: . - Daie:: -� � OK'd by:� `�i�� File ho:Gl'� _ I�� -----------�------ --______--- ---��--L�- ---_--_---------___--------------� RBCBJved /l0/77: (Please ptint pbinly lor scanninp). (Day) � (Eve -.- . � pq , . NAN,E: 1�1�-�� W-CS7 �n � PHONE�Z g_"�D / � � :�_:. �DDR�SS: - ��Cv I� ��. .. k�rr�1�-TsS�i �. - City. ��n-�vl� Stat� �i�1� _�.l.oc2tion of prohlem, ff di;;erent: . � � Rspo�.ed P�oblem: - ; i��o� �'vyyr � �'��,�,� IQa�. �i.GS ('�S� ��,/,� �vi� h�s- ��,�-y G�G� d�� N�i qti G.�o� �,�..� S� _ - , . .�. � (�b��-,d � h��. -�v� �h��o� -�� -�� .�� , . . . .�- � � � d,�u,�-► !-�;r s 5�.�-.�c� : w�� ,�,�� -,.-� h�. . . � � /s �'h�if'-�- o� �G+��'l(m a.�i1 ��s � sG�� c�o�s� � � , Gcl� -}�"'"`� ��°61�,s �e�cv�e�. :-�-G�e -�o ,�jvp-�-�:�'.�5, . ?�_i .,_�..a. Lo: tio: 3loc:: No: Cii�c: c::i1C��S �:1V.7�Y2G: i�O r18�Gj �:�'�Si1G:ii01 ��cc:��C'i , -:::c; ...._........... ...... . . .......... .:....... - ---- -.... .. ......... =z:�r,ris�tri+.+ii�i?�z+i»iri.irirr�i'— ^'^."1►�t� •-- Y•�>l.�C?7 ^�^�^-+:�L�'�- __ iir,wir��siei��+..�r'>� �z:i ':.i::�:�,^::n' .:r:::h`:i�:�— w: —:�J.S.: vv, �.r��i:�3�..f.rVCln Ji�a�—.. n. .<:C..�. -_.::.:`:y,p.-' - �" ,.;�:r.s:- _ .....�. .,.:>� — c'�— ... . .. . . :.:._.3-.:Go'.':r.......a.�.i� ...,....;.;.:a::;..�:x:� �3.:�.:�::;..:::�:..=:.c.:�s........,,......,..�v_..;;.;...:c.::,.:.,::.:..:.:s:.,-:,..,.>::.,•s.:.:�::..::,-r:.:.: ...... ,v..-...r. ........... .... :s>.:•.---.> ,.......,.,......,. S� � � 2 3 � ��r�eE ;,�o. 032 3D 5 �'I230 Y�o�� 5,� �;.��o�: r•;��.� :,. S � .. . o:� 35t � ��s;�� m�� Ccur.cil �i;, 12 Ch;:ra� No: ?.�SPONS�: C��iz�n notm� on Z Z�qL by � ph�n� _ I<i��r _in person � r-]{ I � ��Y� /��5=�/� G-a.�•�!� !� G�os/�'�1., C i r't . �Ot►fi� rs /YX,�I%1 Y4r� Py/ f�� - �. s�.�. .�f r�J�ti,;,y,�„. s�N�`J o. C.�s�o,»-c�- �rv�� G�,..,-�J� c�ws i h5 . �. D:SPOSlTION: Turned to on by O�: n'o fe;�her �ction rec�mm�r�d� � � !e�d acency h2s b2e� roimed:_ (1.,l,c �pT . __ _ rro5lem hzs be�n co:recte�. _ �'o problem hzs b�en ioenti�ied. �riOr inveStig2iro�� c:.ress�s • - SFe :�)e � ?rr•�a�e probler� - 1�'D.4P wil!not consider bec2use: V�'ater o�iginates onsite �nd/or on n�ichbo;ing parc�l � - _ l.ocation is o:�tside SVJh4 ServiC2 A�22. _ Oih2� (GpeCi��): DAT� CLOSED: � /p�'�f/ 9y b)': G�r'� n�,. � .,.� _ � . .- _ . � .. . . _. . ,� _ A . � - complaint 96-0143 Westing, Kate Investigated by Doug Dobkins on 2-21-96 Mrs. Westing lives along SR900 and is concemed about the runoff from the roadway impacting her home. There is no street drainage in front of her home so the water runs from the road frontage of the property to the west to the Westing property. It appears the water ponds in the frontyard and driveway against the house. Also contributing to the problem is the downspouts don't connect to a system so they flow into the same low area as the road runoff. It appears when the water gets high enough it runs towards the neighbors to the east. SR900 is maintained by the State. I will confirm that this road is not maintained by King County. If maintained by King County then informafion will be forwarded to King Co. Roads. SR q oo �s �''�►�.��^�-:� b y �- �-� • � �..� .\� L,�Q��c.. ��c � i� �)zs-lk-:vti , � r---_ � �- ;! � �� ' PONon+c -�-► � � � y i SR 900 � . � °-- K1NG COUNTY SURFACE WATER MANAGEMENT DiVISiON DRAINAGE INVESTIGATION REPORT Page 1: tNVESTlGATION RE�UEST Type� Received by. Date: 3//3�9� OK'd by: File No. g� — 7� .� Received fiom: (Please print plainly for scanning). (Day) (Eve) NAME: �Dh{�j-eI�L/� (�l CGf.C� PHONE ADDRESS: �D��S /�� S� City �-�'��1 State�� Zip ! �� Location of probiem, if different: Reported Prob/em: . ".�'�r-- - �71"fi1G�.D - ' , � Plat name: C'D � /l� �'�l Q� Lot No: a Block No: Other agencies involved: No Field Investigation Needed M,n►sis) - ..:.:.... ::...... .: ...::. . : ..:.:. ..;�.:.:.:.:-:*,....:�':':",,,"`':"'if�k`",#".'"#ii:'-"„':#'. ,.. ..•• • . ,,... ..,-. . ;�:±ixi4ie3i;��i?t,;F:£�r'.#;*�.r:�:R*"�if#�i�k:*iiil'fifi�`.::";•,� -�>-; :;- �� " �:'; � <'.: �."::`.;'";:�'' .>� .,.: .. ir#.-frA: �t#. *�ic»:#+.� _ ar :A-,r ..k.��.�' .::::..:.::::..::..:., .,...,>:: . ....�.::.�..�..;,.. ......... .. ;...:,. x .. .-.,. �--.....-.....:�:: t�-.� �•C�M;:..., ,:�Y:�C� � N'�'.,:fi{).' :A� :.>:::.; .;:..:...�.::.:.�v.>......,. ,_- . .:.:....... "�:. ...:�. .. ... .P..�.�.. ........ .M...kA� ,..P... G�i...f�:SX�:. ..;... .;,,»=�� :,.. ,... ..�.. �.,.< ,,,... � -.f:-•�,;;.t ,.---... .... .<.....,_....:.............:.._.......... ^•,� <:-s<�- r�:�.�.... -,c,..a...,o:.,.r:-..w.x;.w..:xL?'.�..,f'�.�J`�a �.�s � .. ,-i,;:.... .. ...:::....... �.:.::.. '.c." : . , .,1.... '•• ".,..'. � .. ..,,..-.,.::,.... : .,N.,..,.,. .,�...v.. ,,.,.-r.w..Y..........�.«..�w..,�.....s�.,.�,..s<.w.c.ww:;r,.:Lr:.a::a:,«,...�:..»<;;.:�:u:V:wu.�:>r._>:;.:w.r..o:::�:c:.\..:•.,t�.wac<./..wn�:. ... ;o%,�c,.,�,cn, ,.::5�. s F 3 2 3 5 Parcei No. � 7 7��d d D ZO Kroll �� Th.Bros: New��o � �/a s T R Ofd 35 �� Basin /"YI/� Council Dist � Charge No: RESPONSE: Citizen notified on by _ phone_ letter _ in person DISPOSIT/ON: Turned to on by OR: No further action recommended beca Lead agency has been not�ed: . � Problem has been corrected. No probiem has been identified. Prior investigation addresses probff — —See Fie# • � _Private prob/em -NDAP wil!not consider because: , � Water originates onsite and/or on neighboring parcel _ Location is outside SWM Service Area. _Other (Specify): DATE CLOSED:�J �t� /�_ by: � � ��;-flZ-'1„� C -�a.7; / �.,. n^ � � � �.-.._-_..r.. ..f.._,..��...��_"-'-......__..-��,----. �_1_- _ - _. , f.� ...[- '�'rp . . . ' �.''::C�y.�,l.':L-• n_ ;�;'�: ';, �.�:?e.: "'t`,�,t ='--•.- -'• ��'.,. _ ._U��..�::.� ..� -�: . . . ._ ,,_ _ ._ - — ; .��o �D � MAB 8 " REGE�� K�,.:►�Eo � � 19g� 104I5- 147th Avenue SE Kic� couNnr xFcusrv oF�c MAR Renton, WA 98059 TO; ` � �' ` ��G�R�ES 4�REGZ�R March 3, 1996 DUE DATE ��RC,L AUTHOR� ��► �I(�1��C�L.S SUBJfCT• , County Executive Gary Locke 1�U�.ICR� / ACT�oN King County Courthouse V RESPONSE FOR EXEG 51 I Seattle,WA _jtESPOND FOR EXECUTII REVIEWED QY - �I RE: King County Giving Permit Granting Authority to Renton f.Y.t. Dear Counry Executive L.ocke: c'J'�. ONf��Dd�CS�-�' �� I would like to explain to you the frustrations of a county resident who is getting no answers to a problem we are experiencing. You are our top County official who is Funning for govemor. I would hope that you are also concemed about damage being done to our environment and the I flaunting of rules that I have seen or heard about Just north of our house is the development of Stonegate. In January 1995, this property was I annexed to the City of Renton. After talking to a Department of Fisheries person tn November , about some erosion problems in that development, I was told that the City of Renton has a poor ' environmental record. This person also told me that every time he hears the City of Renton that it .� raises a red flag in his mind. � This development has a habit of doing work on County property without having the proper permits. An example: At the north end of 148th Avenue SE, there is a bridge going across May Creek. The developers had private contractors put in a little walkway over the bridge and put a water pipe under the bridge without having the proper permits. How do I know this: I was told this information by someone in the Public Works Department. This developer is now getting the necessary permits or intergovernmental agreement. On February 21, a contractor employee did some ctearing work on a right-of-way on land located in this development. He then crossed over into property located in King County. This property is also located near a Class 3 Stream. There are no erosion barriers in place--just straw. (See enclosed pictures). If we get another heavy rainstorm,there is going to be alot of erosion coming down into that stream and going into May Creek. May Creek, by the way, has salmon in it. When • I asked this gentleman if he was going to put up the black erosion barriers, he said no. Then I told him I «�as going to call the City of Renton officials. He said,"Do what you have to do lady."� So, I ca]}ed the City of Renton officials and they gave me no satisfaction. Then I called a larid-use violation into DDES,I called SWM and filed a complaint,and I called another County otfice in • DDES concemed with environmental issues. I also talked to a lady in the land use office and she stated that this development/contractor had no permits to do any type of clearing in King County. � Since I didn't get any response from the County,I also called the State Department of Ecology. On that Friday, I got a call from an inspector and she said that the County would fine the developer for not having permits. Then I got a call the next day from this same lady and she said that Renton had all the permits. I did not understand what she meant. In addition, I received another call from a difterent DDES office who said that I shouldn't call ihe Department of Ecology. Well,if the County doesn't care about this land then maybe I shou}d call the state. � This afternoon, I spoke to someone in a DDES car and he told me that King County had given the City oi Renton the authoriry to grant whatever permits it wants for work on County land. How can that be? If we did some clearing b}'this Class 3 stream, we would have to get permits from the ��` iI County. Plus we would have to put some erosion barriers. How are we going to protect th� �' stream from damage?The Ciry of Renton surely isn't going to do so. Last November I catle I City of Renton about environmental damage(that I had pictures on that was occurring in thi� I development. This Renton official only got concerned when a Department of Fisheries pers� came out to do an inspection. Who do we call to complain to when the conr , County land? No one in the County seems to care about this land except us. , Do you alsa know that the City of Renton wants to vacate a portion of a Cow,�y ��u — �L. ��.�:��,� '', Street. The City of Renton is trying to do this without all the necessary pennits. What gives the ��" Ci .ty of Renton the nght to do this without talking to the County? I have been told that the City i-� now talking to the Department of Public Worl:s about vacating this road. Again, this is happening after the fact Sincerely, �� Claudia R. Donnelly _..� ; `� �� pt cE-�-� � � �'v` � � , � �- . � . ' . •.. �- .. . i .:�. - i ' KING COUNTY WATLR AND_LAND;R�SOi7RCES DIVISION:: DRAIN�GE INVEST'IGATION REPORT �� F �T _ ` - Page 1 Ixv�.s�tcA�tox R�QvEST 4 - Type�.�_ �os� ��i9�r��'G' _ �� S;. � 3 f, R�cEivID B�:.�4 ��?r�� Date. -3 S �!�,--OK'd b, �-� � FrLE No. � C�� T ...;+ ,r� �..:�. ;.ti � e- -: 4 ii S.a ",� '.a �� r� � r�- Jc �.��R .T R � :��i� �= �c-� _ Received from�� .�+��- s � �:�. -= -�- ,:, �T _ r:, , �- t �' -. �� - �: `� .�--�:- ^ � � >_ EnaY) ;! " ` � ; (�?ve) � � � � � � � N� � �v.�r� � �L��%f�'�'� � � ,�oNB Z Z�-- .S'��S � x=��r �s� x � �- k A�T"��A ��+ �. /�/"/f��fi r�... ..�c .,,. �?.� � w,_ _"� � s. q ! {v+, 4 2 �r'�,' r.8 ati<t' �. .L�lLl�i'iJ_U C/�`/�/��f��"r �s�f�/Y. P `''{; � '�'k � ��' ��l�l�i r, _,Zf .IJ`41ei � }�>'l�IF. y' { C 'yT - ri '�4 'S'a�3�'�%cY�.-ti . ..: '. _". � .� � - _��:� t 'i` � .�-,� - � .y 1 . :'-� .. 'l'•� 5� N�, �� u ._ '.. Location ofproblein, if different. .. °�� `�� _ �t_� `� : .;,�: _;��eF��/ (�-��''�tv��_ �� Reported Problem: ci�iL�msT ❑ (Wou1d Lilce To Be Present) `O f'S` �`z ! 53 `�frO��T� . :_ ... : _ . r T.� . _� �o��b F 2 s�"iz ��,�r ��Q ; ��sc �s: . �� }�y . �d Po s = r�' C�/��'z /✓�-u'� Gdc�.�, �i�,,✓.l ��'�-� ' �iPd�L� �o�✓ ��''� �`',�,��. ��.�►�T� �✓i4s �/is/�' �/,clCo+" ,.. wr. � �c'�' ��!/c �G ��2w � �• �• O/�./rr'� ��.r �U��f'. ��" � /� ' _.�_ , �,°::: � �o,�a L s—�'l. �O,L t/�= f ``°:=� � �. Plat na,'me: �� ,� Lot No:S�'S3. Block No: Other gencies involved: No field investigation required :;°� �� initials �b �N� � Z3 5 �/a S T R Parcel No.�SQO' 452c� -�Kroll �� Th.Bros: New 5� OId ��2 Basin_/Vt 1`�i' Council District �Z Charg�,Na RESPONSE: Citizen notified on ( by: phone letter �in person f�N � 1 Ti� c �.o�eo � c�r�j o � R�e�✓�nl �-02 'p �S�O S t�l U /y D� i¢/"�/L O�/'�l L � � G'D/1/ l�QY1�ITG� . D�sposrr�oN: Turned to on / / by OR: No further action recommended because: Lead agency has been notified: � " Problem has been corr�. No problem has been identified. Prior investigation addresses problem: � � S$a�# .� P:�vate problem-NDAP will not consider because: Water originates onsite and/or on neighboring parcel. 'C Location is outside WLRD Se 'ce ea. Other(Specify): DATE CLOSED: 3/ /�� aI gy; � ,2g3 Complaint 99-0196 Gallagher Investigated by Pat Simmons 03/11/99 .}30—72(►g 1 met with Mr.Gallagher,Bob Arthur(City Of Renton),two other city of Renton officials,and two other people from Chaffey corporation to discuss the a flow of water across two lots of the Stonegate development.The water comes from the East to the ditch along 148`"Ave.SE flows about 200 feet along the road then under it and through two private lots then under l47'"Ave. SE and into a field toward the development.'The water then runs across the lots to the area were it seems to infiltrate into the gr�nnd. They agreed that the water needed and could to be collected and conveyed across lois in a pipe.The City of Renton and Chaffey needed to work out a few details of the plan before the houses could be built. i i SY'�Rf1 Lot 53 j 148`b Ave. SE _,{ lr„ Drainage Path ' �,�._ r�r� � �'�e - Lot s2 � 12"Conc =— �— 147"' Ave. SE � NT3 � , - -�r.. KING COUN'FY�VATER AND LAND RESOIJRCES D�VISION � < Ss'`� 4 � � � � �"� � . - � .�; � ,rtir.-.t�a.asy�.i.��£. �r� F�G��1." �ii� - DRAIN�GE �1�'�ST'IGATIO�I REPO��ti-� �_.��'a.�..::�.� . _ _ . .. . ... .�� - '�+„ � -�- ,y f�f?��%� ,�,�� '�.�„ '2,�.: ��.�`y�, >,�.,r .. y�y .;�. Page 1: I N V F S T I(3 A T I O N I f E Q U E S T ;�,i x,� � :'� � * � �r'�*Typg ,_�� BI.II1�: �, �1��%�_ ... . � - .- .. . . ' � . . i �r� ,s :,�� s .�.�,e � .._:. . ,a ti, __ . . , i� :� L..r::� '�.�� ,..�:� F „ 'F'- .a RECEivID BY. C-�� Date:��•2 r-a� OK'd by -- ��-Fti.E No��j ' y- � FI . _ C�3' �j_. , Received�from:._- -� ;�q#��. ;. . z k � , gr��k= i`s , '; ;:..�:: •�� - �� 4 . .� �. :�.: .' � _ ,'t w1 r r e C�� ay� - ��^�"� �- h�`q ,�� '�;+�� V6��Y `,�:3 Xr-i. _ �. �. . . .., ., .�,z .._r r -c � . y .K � . .. � - 1`I��..' � (i L�J�J�a-v"��' .. f[NI//�LvYi t/�' ..� .. _ .� . ,.;-� . �. � i Y!*""g,�P��3+:�f j.F sz j-`s+� y c..��r . PHONB. � '�-- J �>e�} Y �-ADDxEss.�1�2�'''��l 14�1�1��v� City ` k „'r State . Zip � . ih =- -- . �. ..-.."... ... ..-, �-..: , . � . -: 1�'�' �� . ' . ; �Location of problem, if different , , �. 1 i ;;; .� �- _- � � �. � I � � �ZeporCed Plroblem: CAI.L FIRSI' ❑ (Wa�ild L�ce To Be Present) ' ` ,.� ` - - t�� . Y �� .. �} �P.ciS� � �-�-�c� �'� -- :. ___ .. � _ . . � . .. . . - - . _ . _ - �,.--_ . . i �i Plat name: � Lot No: Block No: Other agencies involved: No field investigation required initiats I/a S . T R I�arcel No. Kroll Th.Bros: New Old Basin Council District Charge No. RESPONSE: Citizen notified on by: phone Ietter in person DISPOSITION: Turned to on / / by� OR: No further action recommended because: Lead agency has been notified: - ' Problem has been corrected. � No problem has been identiSed. Prior investigation addr�sses problem: � S�s I�a� _ Private problem-NDAP will not consider because: Water originates onsite and/or on neighboring parcel. Location is outside WLRD Service Area. Other(Specify): DATE CI.OSED: / / By: �, _ A��A�_� �G � � �JWC. - -- :,� _ �.: Shannon, Kathleen ' � _ -;kj., ,:n� � From: Norton,Ann Sent: Thursday,Apr� 15, 1999 3:15 PM _ To: Shannon,Kathleen �� Subject: FW: Citizens rights? Do we iiave any? . .,. ..,�� -�. � ----0riginal Message----- .��'' From: Bissonnette,Pam `-:;..t Sent: • Thursday,April 15,t999 2:01 PM To: Hansen,Nancy Cc: Kipp,Greg;Welch,Maureen;Sfms,Ron;Norton,Ann;Tanaka,Paul SubjecL• FW:Cilizens rights?Do we have any? �`�� Nancy, another one for ou. Waufd ou lease have your drainage section coord w/DDES and provltl�a�aM�iAnt�� n,r Y Y p please treat as ccf. thx all. --Origlnal Message--- From: - Sims,Ron Sent: Thursday,Aprll 15, 1999 7:09 AM 70: Kipp,Greg;Bissonnette,Parn Cc: 'thedonnellysQinfoconex.com' � SubJect: CtGzens rights?Ro we have anyn Pam and Greg -please follow-up and report back to me, thanks. -ron From: Mike and Claudia Donnelly[SMTP:thedonnellysCa infoconex.comJ �ent: Wednesday,April 14,1999 7-33 PM �: S'uns,Ron Derdowski,Brian SubJect: Re�Ckizens rights9 Do we have any7 >Dear Mr. Sims: I found out some information today and feit even more >frustrated with KC, so 1 figured I'd pass it on. t finalry talked to a >person In Renton who told me about the meeting. It was with someone from � >Surface Water Management. The Renton person told me that he didn't >remember his name. Welt, the SWM person said it was ok with him to put >the pipes where he did. That Renton o�cial also calfed me a liar. I >saw work being done in KC—but by the time Renton offlcials got there, >the developer had"fixed"fhe problem. This is what made me mad. On 148th Avenue SE, north of State Route 900, are two culverts diverting water from the ditch along side 148th, under the road through people's yards and into Greenes Stream and then onto May Creek. My neighbors and I get the water from the first culvert— 500 feet narth of the State Route 900. We have tried for years to get help from SWM. But since we are�only 3 houses that flood out, have erosion damage, etc., we don't counUrate. I wrote you previQusly about this problem. I eventualiy told SWM to forget us as we were 9 out of 9 probjects. This personmtold the Renton City officials and the devefoper that if the water got to be too bad coming from 148th at SE 102nd ST. and it started flooding the nice new homes that are to be built in Stonegate, that the County might have to fix that problsm and divert the water to May Creek alongside the road. DDES told another lady that gets the same water and is wrecking her property NO when she asked if she could put a pipe in to channel ths water " �y�tect he�property. WE DONT COUNT--BUT A DEVELOPMENT IN THE C1TY ENTON RATES�HIGHER PRIORITY FOR KC SWM THAT INDIVIDUAL KC H4MES THAT ,��.� HAVING PROBLEMSIII I wrote to fhe Growth Management Committee and the Committee for Unincorporated Areas that years ago we signed a petition to help get Cedar County formed as KC wasn't doing anything for us. This goes to show you that we were righG We don't rate— but a laroe�tP�p��^^��^• �--- �� % �d�'��o\``� ''.�"' KING EO�INTY WATER AND LAND RESOURCES DIVISION �j�' � - , � J ` + , - -:, � y, .. DRAINAGE INVE�T'�GA.TION REPQ�iT � 1 . . �� .k� _ ��- Page 2:� INVESTTGATIONREQIJEST - Type:,-� , � ' Il 2; �. . Y � �ppT�� t � �,, t_:' .. ' ._: ' 1\OD�.r.�Yl{/t _' '� . _ � . . f .. •� � . , ':' . -.,� wt,�`::1 '�,�, � t '7l d t! ..t-: ..t `i'�rt ��', ': ' Y _ .... -. .e .z r s �� i � ' �`r-i RECEIVED BY� �f"- ' f �-- : Date �� ,OK''d�i� FILiNo.-q� a'��d � Yf . y a t� -x . � . � �, f : �� eeeived from ,� `� � = Y� p� ��; � .�� < �.'; � - � T -�, � .. -, . ; ��;,, f �_ .�:�.f ":� �`i-t��,a3, j -4r � �'��-C* y �_.. t �: - ; � - �.� -.. -. .,.y Y �e t _ � a �i h I�rTi��S�{'�+i�� . G•'.i`'�{f T�yl a'S' �. -- ` EDaY� �Z:' � �+(Eve};", �1• � NAME` 4LC��"'�D DYIYt�;��r� j � #� PxONE �S S '�34� �� 3-.• i" .1.: 4^=. � ADnREss��,�� 4�E�'�� -� c�'7 � �:: - Crt� � ; State - Zip p'Sc-t` �}. _ .., ' - � �rf:: � �.. � 'f� , � . Location of problem,;if diffeient�k�-Q � t ss Kd �� ' ' — .�.. _ ;: . ��- �`r�-8} ,� � . ; .. � ...�� .. .._ . . .a.t .-: . . . � _ . _ - Reported Problem.,..': CALL FIItST ❑.(Would Like To Be Present) - _ ��-"�-- � P'�'�.''`� "��-�J c�� u� �- .��- -u�.c;�.v�d.� 4�''q� 1 a�� :64�! �. �1�:�i� `��u�e(�� t.�- , a� .1� un�.a_ �� iu-o,h� � 1r�U� U�Gcc,c,cn.� .�.�,�2 .dt�uv10"� �u`f''' a..Q,�r�= �l-�-- -�d�'c, �- Iruh �c��' Ch�;ul:- C�,a.,1r,c,n '�O (.e-n-4f�. lwii►�h i'4.1af0�t�C� '�a-,Cl.,t.,t�C.l� � t?u,l/a�v`�- . a=�� c�l-�io �vh�� a-�r�.t � d'.c,�--� P�� u.p �i,� �a-anti �t�t.t� tvh. h,�uA�c , ll�e�d T',A-. � , q S -- o y�� 2� �j S - D �`l 8' (,�G v� �N, ha-v�- Y1 �1,ti.e rn�s ��►�.-� , � nJ � _ p l �1 J� S'Q� 1-F �p✓�y 1'D►JS )rt�.0 S 7�� J'�r-�9 �� _, Plat name: G� cl � ' O�Sv �''��S ��'�n�Lot No:ti Block No: Other agenc'ies involved: No field investigation required initials _� `� 2� 5 t171co�o�) l�a S T R Parcel No. Kroll�_ Th.Bros: New �Ztv�� '� Old 3S DZ Basin_M�_ Council District_..(2. Charge No. RESPONSE: Citizen notified on G� '�-F 9 by: _� phone letter in person � �o'� �CGrs��f� r��..� � Cov�4` n.�.-�- .C„�.,o ,c•�yacc,,,...5 Ao....✓ ronr�.�s--� /'s•,-�- '''�`_ l� .i��,,�,¢,a' �f!!' �.tvz✓s c lunr Da..� �w-r.. Bv-y,- Ta G'o.✓�• � � l�2a��m-S � � DISPOSITION: Tumed to on / / by OR: No further action recommended because: � Lead agency has been notified: /�t/. �� C� `T- ',� Problem has been corrected. No pmblem has been identified. Prior investigation addresses probtem: s�ea�.a# Private problem -NDAP will not consider because: Water originates onsite and/or on neighboring parcel. Location is outside WLRD Service Other(Specify): � DATE CLOSED: I �/ � �9 By: /�n�ill!,��-r-,`l n f _ ._ _ .. -- _ _. . ,. _ _. . , ._ . . . ,� - - - i � p r�"'^�'4i"�C }�':�"„s f:''?.""4�.�x;r �w�r _ � + C„cnpiaint y�:�710 Don el � �_ � �....�r a,��,... • �T : � F, Investigated by Chris Treichel 10.!14'99`.'" �'�. � �~ � ` .`- ��F`" �_• _-f Visited the site on 10-14-99. Nobody was home at the Donnelly residence. Went up to Renton Issaquah RD where the construction is taking place. Talked with one of the project managers. There is a swale that rons to the north,that ends up running into May Creek. 1 could fmd no signs of erosion taking place. The project manager stated that they remove the dirt from the site and fill with slurry. It is a day long process and they do not leave a trench when they stop work for the day. There is this type of work occurring all along SR-900 down to the City of Issaquah. ' SE May Valley RD j t � Runoff Swale approx. l � mile a�vay � � Area's of � � �vork. Donnelly's Property NTS ► sF �',,�,.� �a,�,� � �� ►�, _ _ ��,��<. _ y- - - - z p =- '�y�r-„" � 4 � : �� }�s.'- �t"'".�"c .�^ .S �, i ',-} �, `�3 _ s �� ..� � it_t Q^ s�.- � . -.. 1�. tfj')�,. - � -. N ;�jl q}` � . i r� :. ��8�` r'. .,� , , � '` > � f �,� . �'�j�' � � �'%' � ��.<.,,�.r I � '�w"'� .$ �sa 3�- e5 �- a��;�: . '_ , . . � x�''�.t+.��3.� � ,P. �'�� iYs 'a"t: • - ` - �`a-�t`r'b:R�"-�5't'TA s: - �y�rg� � '_ ' _ 1 •. �� i��'� 4�`3' f � -s ,�, .E�EI�EII�YE�� . � � �s s � �K�- eb � FILE N�� .,- �'�a; � •A'a�s a ' : ,�yi;�=a i�T�`s�i .� ^ '3'..' i .r�. ,� � . � ''. �n` /�!Dl�� t'.��..'> J.c �` ��s ..,�t� . .��Received fro� B ) - � �D'll��`w --�� a-� � ��4 � � �� __ �`W.�L-rk��l�eiC��!�'�r F ��/ /Y'4�� - X^'�,p. �i7 t H 4c t t';.P 4LF�'[S� t 2"; } ?- Z . 6- 3- .T� r. '°? .�F�'4` 'K �.- LX �.S #'�"„';�� T�`�'"N�' ah.'+ �'^4��'.#3" 4a �' .� � ty(,f';�'�`lY� ..�� '`S y � �'_� ,�({ 4 � t'�r e�''�' 3,�,�i ,� '',. �, z' �- •°f r„' u �� a�� y��.�. � � ' � -s ��'V�) - y 9� `k�''��-r `�K t�'.�r a S`�.3r sv`� ' �p1"�'t'��_-�'-�`�'�� ;1f - k 4 wi _,p� �� . F � � �.�c ��1 r"-fi rw ty:..� •y;- �3 F" `°, Y �. r r _ �` > Fv' r � i� �,;p�,. "`,xs .s� �, -.,fi v �.: �. .e. 54 �, �I ,N�1� > .E�?L;//�2�?�� # ;��.E ��;r��I�or�' �� _��} �;.� �� .-�� t�� , �r� k � � � . �- �. i .��,�� : � �- � - � � , � � ��,t >- �y��:�r.t�;. x�` �'x�� i "1 ri,��3.'` °� �i��° "�u�.r� Fy .,: Y r� '�" € '� �� N,y�. .� 1� �'� �r-�- ' ''; �• j nu �_ ADDRES�� : �� .� �: 4 � ,� , �3.�x ��ity'� �� `,�- R�`f �1 Sta�e :�}h �-��Z�P �- ' Y �:1 5 ' ~ � i R . K ,k. y.i � ' "�„4r t. � .-�`�' tE -.�- `�F i$ � r f�, `� � '� � 4�.�1 t r.t�.el' 'a�'rj;�h ��" . 'r"�8i �� +t' � . Loeation:of problem, if differ t � �, /}'�� - Y� '' �'�`` 'r'�� //JJ}} ��f///��/)('/J��/�` � � `` `��N�> z '1 " �-�� - :��.I hy� "� ��/�i..�i.'..O 6��. � <. ,�'�; ''�t x t?,'': -�' } *� �c"i ; Y .-� r .' f�eu� > y ��,�.3u ��ie.� . ? k %f n� ��' . >: s � s � ;at,< p � �d �`+�'� �s 5. ��'� �a a�3"j > y Reported Problem, � cALL FiRST;�I (Wou1d L�7ce To Be Present�x 4 Y� ,£,-��-� _ ��r _ �`� , �� ;,��,} r�° �� .� �� tn,+, Lifi .{ .. :. v �- - y _� � s,S '-�r a",. ,�'t,.`.s� -.S�'` / �.} ' � - i+" -i!`,, r t -t .. .f4 t ��? � i y t- u , Y r '� ? v� U�If<�'�Cl//6z.!//�c/ QJ ��/��a�a��'�,- s�r t - _ � C?��%�� ::,. >� ,il �' ,,�'�` �� a 4"A / s��oa �t�� :.:rv";tv�9�00 �� ;Y � ��?�9� � � �� -, �� a; � , = z :� � ti� ��- �� ?� �r�o �o,�;, Q.��- � , . � G�.� _ - .�� .. �� d�� . - .. . � .. . ._ . _ _ } .,� ' � . . " - . . f. I . � _ . .. � " . . ., _ - . � .. . . .` . - .. - . � . - .. ' i. - . ! ..� . . , _ . , . . . �� _ _ - - . . � . , � .. - - ' ._ ' . _ %r' . . Plat name: ; Lot I'�o:r Blockf No: _ _ . � �� _ ,� Other agencies involved: � � I�o'field investigation required initials lil .2N.�..'d..h. _ _ _ '_ "_ �.,c. � � - "__ � _c� _� —� T /_ �/a S T R Parcel No.�2��5qD�� Kroll�� Th.Bros: New �02 7 ��P ola 3S �.3 Basin�� . Council District�2 Charge No. RESPONSE: Citizen notified on ' �'-'—c� by: phone Ietter in person 5�-�%- �-r y m w s��. DISPOSITION: Tumed to on / 1 by OR: No further action recommended because: �Lead agency has been notified: (�/- �_ � 4 % � Problem has been corrected. No problem has beeu identified. Prior investigation addresses problem: � . ' � ��# _ Private problem -NDAP will not consider because: Water originates onsite and/or on neighboring parcel. Location is outside WLRD Servic Other(Specify): DATE CLOSED: I� /�.�19 / By: /��?'j�S7`�� 3 '°r -�� • .:3 . -F .. s ._ r_a. ty. . ��C fi� �� ''�7r � ;�*`� ..i K� . . � . . ':.'°Sc�}$i?� _ ;� +;�{`Ay -� `.��.i�'-jr.'..:,,y �ia Complaint 99-4725 AnAnymous - :��:t�a'�"�� _ Investigated by Chris Treichel ]0/19/99 � ��:=r�_ . ^:,; �w.,,; .4,�.' i 'r�'_Z♦ Visited the site on 10-19-99. This is in the southeast roadside ditch at the intersection of 148'�'Ave SE�and � ` , SE Renton Issaquah Rd(SR-900). There is currently conshvction taking place within the roadside areas all along SR-900 by Cannon Construction,installing fiber optic cables. This area was part of tho work. The ditch receives run off from the east,south via a swale and south via a roadside ditch along Il�c�nstside of 148'"Ave SE. The water flow's northerly under SR-900 via a 14"cement culvert anJ cui►timi�'� i��rtherly to May Creek,which is approximately one mile away. There did not appear to be any�a�ii►�uii� �� he water. The ditch does have reed rype grass and straw down to"clean"the water prior tu Il��wii►K into the pipe. Swale 14813 SE —\ Renton �.� Roadside Issaquah RD Ditches . : : : . - ♦ € � Drive and ........---�--...._._�_..._� � .:.�. Parking 14"Cement � `� �� h �� — Culvert ({�ppp��dl�qQQ � ��'�� _.. � � tA �-...._...--'� Rf 1 �•�-+e � K11VG COUIVTY WATER AND LAND RESOURCES DIVISION ,--�-�°�-��.� � DRAINAGE INVESTIGATION REPORT • Page 1; INVESTIGATION REQUEST Type G PROBLEM: CLLQlttA'��( f/ RECEIVBD BY: �-t'V�/ - Date: r�4 OK'd by: Fa,E No. Q')--(�)21, Received from: � - (DaY) �� (E�e). �_._..2 ;� N�: GU�I�� nrte�,�j �orrE 2�'� —43-4n � � ADn�ss: 10415 14-1 �'' l�iP� s� City State Zip�� , i Location of problem, if different: . , Reported Problem: CALL FIRST ❑ (Would Like To Be Present) IRS �rv��n �1-n�,ri5�,� �J to`1�O 148�'^' i°h/�S� i,o � I�w�. ��r�c� �� -�'U -�- c��i,C� A�,u� `�'k-e h.t�ol.- Ctc�u�t.�,� i,o Co�.Cvt.n� p,�-r��' �1�. .1�h-�-�''�-� L'�'��t hL �o o�. � n,Q'-�-. ' . ��1e�r �w�-- � �p�Ph�� tu.�.�.c.U.:ow -�,°�N,t-v� �1��v c� Ct� � �v �Yvt_.u�- C;f�C-�C. c lc�,��.cv � �,o,a! �,lol.u'Yw t�c� � Gt�(N��-- �,i.t_Gt/l�.t�-�-��-, c..,.91n..c,c� �'i.t�ti .��QG�- o-� o�lGllt co G-r�i �' `�o �-iDt.t) tn$0 �ti�-uh) C.l�� ,�-0'''v -�I t��rc''"`'� c� - Plat name: Lot No: Block No: Other agencies involved: No field investigation required r (initial s) �— — _ __ »..� �-- _ -- _-- - - _�� 23 � 1/a S T R Parcel No.�7�0��O Kroll �� Th.Bros: New ^ Old �C� Basin�lry Council District 6 Charge No. RE.SPONSE: Citizen notified on �"� 'a o by: phone letter in person � C—•-t•� � � C';.�/t`-_ ��=S (�G��7�-- ��;�/ )- �' � >t�i � / DISPOSITION: Turned to on / / by OR: No further action recommended because: � Lead agency has been notified: ��//� [�.,�� __ ' Problem has been corrected. No problem has been identified. Prior investigation addresses problem: 1 s�� o Private problem -I�IDAP will not consider because: ��. Water originates onsite and/or on neighboring parcel. � � Location is outside WLRD Serv�c�r ea. Other(Specify): � �� ' f DATE CLOSED: � / � /��C/ By: -'i �� , . . . . _ t .. „ . .. , - ".-_. _� r _ ".-. , '� . .:`�x .,_�y �'=.::c; � . . :: . �'� _-�-. ��' z� .r`q`+ _. a � �� 1 <: v L _.� _ _ . zls_� ��. .�� ,'-T_ ..��'.�"`;�,p`��a.?`"_.. �i.:�-S� a�..,,.',n}�� S; -�-:.s�'�� ,i: From: Crawford, Curt Sent: Tuesday, February 01, 2000 1:29 PM To: Gettle, Larry Subject: FW: Surface water problems Please plan to join me in a meeting with Nancy at 3:45 today to brief her on the Donnelly problem. Thanks, Curt ----Originat Message----- �� > ::��. . a �.� :,.w.:�. �" :� Sent: Tuesday, February 01, 2000 12:55 PM To: Crawford, Curt Subject: RE: Surface water problems we need to discuss as 171 be put on the hot seat w/lrons on Friday about it. Seems like we're taking l�ts of heat for DDES... —Original Message— From: Crawford,Curt Sent: Tuesday,February 01,2000 12:36 PM To: Hansen,Nancy Subject: RE:Surface water problems No, unless you want an update on that. I was planning to ask you more specifics about your discussion with Seattle on the manual. Curt � ._ -----Original Message----- From: Hansen,Nancy Sent: Tuesday, February 01, 2000 12:14 PM To: Crawford, Curt Subject: FW:Surface water problems Curt, I understand we're meeting this afternoon at 3:45-- is this one of our topics? Thnx. -----Original Message--- From: Bissonnette, Pam Sent: Tuesday, February 01, 2000 12:02 PM To: Tanaka, Paul; Hansen, Nancy Subject: RE: Surface water problems Nancy, Please let me know when and how we are going to respond to this_ Please get w/DDES as well. f expect Mr. Irons will be asking about this when you meet w/him. We are scheduling each Div Mgr in to meet wlhim. We are starting wlSWD today on their pressing issues. -----Original Message----- From: Tanaka, Paul Sent:Tuesday, February 01, 2000 9:49 AM To: Bissonnette, Pam; Hansen, Nancy Subject: FW: Surface water problems 1 -- , � i . . . __ . -.- . , _ . - ; .. ._ . . � - .� ,.,y:.,.. , ....,-t . .. , -t -`�>.. .'`�.-."r. .. . j � Pam and Nancy: fyi. Paul r-- -----Original Message----- From: Mike and Claudia Donnelly (mailto:thedonnellvs cni.00.netl Sent: Tuesday, February 01, 2000 7:36 AM To: Gettle, Larry Cc: Irons, David; Tanaka, Paul; Arima, Debbie;Wlson, John-Arthur; Crawford, Curt;White, Fred Subject: Re: Surface water problems 2-1 I Dear Mr. Gettle: Thank you for responding. However, it is currently raining very hard out here and when I drove by Mr. Afinson's property yesterday, nothing had been done. , I will be checking the stream as soon as it is daylight and will let you know what ! see. � As I mentioned to Mr. Irons in my response to him, this isn't the only II incident that KC seemed to look the other way. Last summer,when the stream bed (Greenes Stream)was dry, a neighbor down my road, dumped 4-5 dump trucks ! loaded with top soil into his back yard. His back yard borders on Greenes Stream. He put no erosion barriers up or planted grass - nothing . l still - I think there is just dirt back there. Anyway, I called DDES and filed a . complaint. f was told thai because the stream was dry that DDES didn't care , about all the dirt. I called Governor Locke's Puget Sound person and he told me to call someone in Seattle. Then I sent a note to someone in the Dept. of Natural Resources. I got a reply back, I'm not say from whom; saying that because KC Dept. of Natural Resources had over 700 miles of streams to take care of(and ours was dry), he didn't care ab�ut possible erosion when winter came. I guess we just don't rate. And then this. Like I said, as soon as it is daylight, I will check the water quality to see what I can see. Claudia Donnelly Gettle, Larry wrote: > Good Morning Claudia: > > Please excuse my delay in responding to your phone call and e-mail from > Thursday. > > My records indicate you called in your concems regarding the clearing > activity at 10730 148th Ave. SE on Jan. 14th_ As part of our initial pre > complaint investigation research we determined that DDES Code Enforcement > has an open enforcement action on the property (EOOOQ060). I e-mailed > Elizabeth Deraitus, Code Enforcement Manager on January 19th requesting a � > status. Elizabeth responded identifying that the case was sent to Site � > Development Services (Fed White 296-6783)for assignment and investigation. > _ . : ., .. ..;� ._ ; . . � -. .,f,,, .. � .:..3�,7. . ;� s��''��...Y �-. . �i.�.��.` .. � ..�� :`�++� �. - ,,K+.�a` Y� . ' r •-i�.� � .-_ -� . , ,r z ;-9 From: Gettle, Larry � Sent: Wednesday, January 19, 2000 7:47 AM To: Deraitus, Elizabeth Cc: Evans, Glenn Subject: Clearing/Erosion Complaint Claudia Donnelly E0�00060 Good Morning Beth: We received a call yesterday from Claudia Donnelly. She reports that the property owner at 10730 148`"Ave. SE is clearing his property up to fhe drainage ditch (not sure if it is the roadside ditch or?) She is concerned about lack or condition of TESC facilities. I checked Permits Plus and identified an Enforcement action, E0000060 at the same address.. It appears action was recently closed (1/13/00). Is this the same problem? Was it closed because no problem ident�ed? Do I have to contact Claudia? Thanks � � - KING COUNTY WATER AND LAND RESOURCES DIVISION - DRAINAGE INV�STIGATION REPORT. � �- _ r� f r � 'y' ��.Y ,� - � 1NVESTIGATION RcEQUEST �, �' g�:n�`' /�� M �: ,_ l/ l/t/ I� '.l �/�L ll� •, I . �£,• t` '�-�� "'�' 'ROBLEM: _ - . s�,��,- a- � kt,-.� r� : � ' - = r y. ,r �'.;��,�� ' : �. �_ f RECEI�ED BY: G-�Fl� � I)ate � 3dlm� OK'd bY rx �iLE I�O a 2001 �� - .Received from: /V�� !� - �— - �-�; � �.3� ��,� �_.. � 7 . _ 4 �".�T."T , _ ' � ' " ' 'y.� ...`: � - �DaY� �� ; � (Eve��x�{�� . , = ,; �"—rYL� /�/��--r�T . � � � 'C"�i4T.Y't KY'}at-�� NAME (' � :�� r� � �o�ass ��o tx��:� �� . , ; � : �,� r� �,��,��,�: ADDRESS! )D y�5 /�l7� l� �� ' City��D�V�" p ?' State�s?��; ' �Zig K' �.. .� .—T— . . ; �,�- �r 4 f LOCAT[ON OF PROBLEM, IF DIFFERENT: �- - � ' �� . / " � -. d 1 F[r uld L�ce To Be Present J . - ss Permission Grante Cal st Wo , A e �� ; - - � �.£. L _ . � . , ;. _ , �- �ir"�-� C�Z,� f/Y? . /� _ _ �II P1at name: Lot No: Block No: Other agencies invotved: No field investigation required I ; �< . � .. �.: �,.. . ,, - � £ �. ,r�.� -... � � � � / r� �� /4 S T R Parcel No.��?(�O(�'�a'�.�– Kroll�'� � Rmc• ?�,Tr�it• l,/).t ri, 1 ' Basin�� Council District �0 Chazge RESPONSE: Citizen notified on by: phone letter in person �rn� r��•s� � �. �,�r�.,� se� � zl Z� �o� D[SposiTloN: Turned to on / / by OR: No further action recommended because: Lead agency has been notified: �_ Problem has been corrected. No problem has been identified. Prior investigation addresses probfem: SEE FILE# Private problem -NDAP will not consider because: Water originates onsite and/or on neighboring parcel. Location is outside WLRD Service Area. Other(Specify): DATE CLOSED: �J' lo-Z( /D 1 By: �S-��G�-s'� x� � . • r.� . a..si�:,s_:��,....K�G�..�;�n-..�� ,-._,.-t� , Dear Mrs.Donnelly: ', • King County Executive Ron Sims has asked me to respond on his behalf to your email transmittal of � January 30,2001. Thank you for expressing your continued concems regazding the water qnality of Greenes Stream and its impact on May Creek. 1 understand how much you caze about the health of May �I Creek as a long time resident of the hiay Creek basin. I am writing to let you know the results of our investigation and what we plan to do next. � StafT from the King Covnty Departments of Transportation and Nahual Resonrces completed a site visit on II'i January 30,2001 to assess potential sources of contaminants that are entering Greenes stream and May ' Creek based on the water samples you collected. Water Qualiry staff in the Departrnent of Nahual Resources(DNR)reviewed the analysis performed by AmTech on your water samples of January 4 and 5,2001. Based on the information provided to you by AmTech,we recognize that oi1 is entering Greenes stream which is a concern. As only one sample was analyzed for oil,it is difficult to determine if the oil was from a one-time event such as an intentional dumping of oil,or from an ongoing problem within the watershed. The rainfall event on January 4,2001 was the first heavy rain in over 2 weeks. This"first flush"event would have elevated pollutant loading into all drainages. However,we are still concemed that oil and grease is being introduced to the stream system, which discharges to May Creek. The regulation that currently exists to control the release of contaminants from residential properties is the King County Water Quality Code. If pollutant discharges are observed on residential properties,the water quality code does allow for recommendations and technical assistance to property owners to reduce and eliminate pollution generating activities,such as vehicIe repair and increased erosion control. Our first response to these problems is technical assistance and education. However,violations of the water quality , code can be issued to residential property owners if best management pracrices are not implemented or an intentional act of dumping pollutants has occurred that is well documented. '� Although the samples you had analyzed do not provide us with data that can be used to enforce our water quality code at one specific site,through addirional investigation and sampling,we may be able to idenrify sources that would allow us to pursue our regulatory authority of the water quality code. Our sampling and monitoring will include all areas where stormwater enters Greenes stream throagh pipes or ditches. These additional investigarions and sampling procedwes require the approval from private property owners for access to thev properties. By gaining access to private properties we can assess activities t6at may be contributing to water quality degradarion within the May Creek watershed. We will continue to work within our regulatory guidelines and authority to assist property owners in implementing source controls to reduce pollurion generating activities that affect Greenes Stream and May Creek. DNR staff will keep you apprised of the work being completed in the Greens stream basin and the results of this work. If you have any further questions please feel free to contact Susan Clarke,Engineer in the Water and Land Resources Division of the Deparhnent of Natural Resources,at(206)296-8311. � ' :�,_'. i :.� ' �<.,,�,�,. r . � ` DR�A A .. -,. 5TIGATION�REPOR -;b I � ,�� > � �"s �Y��J QIVESTIGATION REQUEST <� „�`�*� _ �� ;�- ��I�p'z •:r ROBLEtii �L��LL//�!- ,;= x `i.,�'�" w��,, :�� " �=�� ` r . ` _ .,'� �; yr' _ �� r `u`�� z-` _ � �RECEIVED BYr?��• �=- Date.�3��n��MO��i� - fi � � �� . s � �.:<� �� .. ; Received from � - � �-- � �. ' -4 = ,_�':�, �1� �� . . ��. � F :� � (Day i , " _ . :� ~ �._"s�� .. ,NAME. ~ _ �� PHOIVE�" Z�JS'�3�O� ,/ �Y" t ADDRESS 0�l� . I Y'�� V ��.s _ . , - • �_ _ . _ ._ _ . � . � •„ -1 City 9� State. f .�Zip� �yy �s,"�� .... �:_ . ..:... ... .", ��.-_� � . � � . �.4:.� �'�=k�Try��;'�a��,1� �,' �.� ' LOCATION OF PROBLEM, IF DIFFERENT: r;_°�� ` , ��:� - - ,=� Access Permission Granted � Call First (Would L�ce To Be Present} � ' � ` � � ,c� , ,.. � � - . ._s Plat name: C��Q/n �� Lot No: � Btock No: I Other agencies involved: No field investigation required s = �- _� �;�: � �; �k< 5' _s� _� _� ,� � /a S T R Pazcel No.l�!C.o �O�-�Kroll O�� Th.Bros: New Basin �� Council District� Charge No. � RESPONSE: Citizen notified on by: phone letter in person i E-YY � �'�- '� ' • I ��- ��.��, ��,�,`. �. �� DISPOSITION: Turned to on / / by OR: No further action recommended because: Lead agency has been notified: '� Problem has been corrected. No problem has been identified. Prior investigation addresses probtem: I SEE FILE# Private problem -NDAP will not consider because: Water originates onsite and/or on neighboring parcel. Location is outside WLRD Service rea. Other(Specify): DATE CLOSED_ D(p //dZ /D l By:C�. ¢ -- ,._� "-' � •.1 :. ' . . - _� 1 ., � ... . � r y r : '--_ . _ .:-'::'�' . . . . ."�' _ . ..,. : �{•� .: .-. ....,, -_ .. - - �� _ .. : . � ._ __ _ `(►rl oa: -�L� , _ .. _ , . _ ., � A, U@ � -� From: Nansen, Nancy Zp p ( - a ( g( I, , Sent: Thursday,April 12,2001 5:20 PM To: Lackey, Brent; Evans, Glenn; Clarke, Sue;Sleight, Brian Subject: FW: Greenes Stream and May Creek FYI --Originat Message— From: Hansen,Nancy Sent: Thursday,Aprif 12,20Qt 5:20 PM To: . 'Caludia Donnell� Cc: Sims,Ron;Ceis,Tim;Bissonnette,Pam;Irons,David;Tanaka,Paul;Shannort,Kathleen;Moeller,Lani Subject: Greenes SUeam and May Creek Thank you for your emnil trunsmittals of the past week to various King County Staffinembers concerning Greenes Stream and May Creek. I also appreciated having the ichnnce to tatk with you a the telephone. King County Executive Ron Sims has asked me to respond to you on his beholf as we I hope this single emnil will cover all of your concerns! I understnnd your frustrntion regarding the marry issues you have ruised and the vnrious departments thc►t are involved. I hope your conversation with Sue Clarke of my staff hns clarified some of the issues that are within the responsibi{ites of the Water nnd Land Resources Division (WLR�)nnd the Depnrtment o I, Natural Resources(DNR). - In regards to your question about how King County will protect your property from flooding and I y erosion/sedimentation problems; King County regulations,specifically the King County Surfnce Water Design Manual addresses the potential downstrenm impacts from new developments and construction. The requirements in the Manual use the best available science and technology to nvoi� I or minimize ndverse impncts to downstream properties. As pointed out in your emnil trnnsmittal of ' Apri) 6th, the current Design Manual requires wetpond designs to meet the goal of 80 percent Tota Suspended Solids (T55)removal through the construction of water quality facilities. Sometimes, even higher removals are renlized. Additionally, the Mny Creek Action Plan recommends Level 2 stream protection standards to over detain flows to reduce flow and sediments to May Creek. The upstream development (Stoneridge) currently under review by the Depnrtment of Development and Environmental Services (DDES) is using Level 3 protection in the detention nnd water qunlity focilifi design. This protection standard is a more restrictive standard than currentfy required by the Design Manunl or recommended in the Mny Creek Basin Plnn. Other regulations include the King County wuter quality code, which uses technical assistar►ce as its first approach to wnter quality problems on existing developed properties. The sediment/oil you hnve seen in Greenes Streom comes from mnny non point sources such ns individual residential driveways and gravel ronds,which King County can't (egally enforce becnuse the Water Quality codE exempts these types of normal residentinl activities in regurds to these pollutants. However, if a determination is made that pollutant dischQrges are due to intentional dumping or illicit connections, violations cnn be issued. You might wnnt to work with the May Valley Environmental Council (MVEC) as well as the Basin Steward to provide outreoch to neighbors in encouroging inclividual property � owners to voluntarily reduce runoff from their sites. KCWLRD has printed information that can be made availnble to MVEC to use in an outrench campaign. Aclditionally some stuff time could be mnde avnilable to provide informational workshops or mailings to residents within the bnsin. � .. - � . .i..:� 3 . � k;;��L+,`. ., .. _ -- �-� � , .;-_ ,x..;, . , �,� � , � . x - _ our concerns that'6reenes Strenrr� does not seem to' e getting th`e`same level of cttention ns other urtwn streams in King County. Other strenms that you have referred to currentty huve adopted Basin Plans. Through the planning process, pro jects nre identified nnd ~? prioritized for potentia) construction when funds become available. Once the May Creek Plan is adopted,this process can be applied to May Creek. As the Mny Creek Plnn recognizes, the creek does hnve viable habitnt in its lower reaches nnd King County and other jurisdictions agree thot this habitnt needs to be protected. However,agreement<_ with these other jurisdictions such as the cities of Newcastle and Renton along with private property owners must occur before projects, like ihose in the DesMoines Creek watershed cnn be pursued. This cooperative effort in the DesMoines Creek watershed is an exceller►t example of wha� can be nccomplished when private nnd public interests work together. Through the Moy Creek Bnsin plan we hope that the same type of cooperative agreements cnn be reuched. Your comment regarding King County staff calling citizens numes is of a great concern to me. King County WLRD staff ore expected to treat al) citizens with respect and concern even "off the ctock" I am not aware of nny staff making derogntory remarks or nnme calling of citizens. If you have knowledge of such incidents,I encourage you to spenk with me so that I can address any specific problems. Please do not hesitate to contnct me nt (206)296-6585. I believe your comments regarding the DDES permit file for the mobile home at 10726 - 148th SE was nddressed during your conversation with Sue Clnrke on Thursday April 5th. To reiterate whc she shared with you, she recognizes thnt there is a hydraulic connection between Greenes Strear and May Creek, however,no distinct channefized connection of surface wnter is evident. Greenes -'1 Stream enters wetland #5,which is noted in the Muy Creek Current and Future Conditians Report i ns among the largest known freshwater wetlnnd in King County. Water from 6reenes stream flows in a braided fashion through this wetlnnd, which allows for notural wnter quality treotment prior to dischnrge to May Creek_ During Sue's site visit of April 5th this wetland aren was found to have a large amount of nnimal droppings (horse manure) Sue will research the ownership of this property, work with the owner on remova( of the pollutnnts nnd refer the problem to the Livestock Progrnm Analyst Laurie Clinton. The Muy Creek Conditions report ncknowledges that Greenes Strenm is a flashier creek and responds to precipitation much more quick(y thnn other drainages within the Bnsin which is why you nre probably seeing flow increases occurring on your property quite quickly after n rainstorm. However,the impacts to Mny Creek ure not as significont regarding peak flow as other bnsin wide streams due to the nttenuntion within Wetland #5. Overal) the May Creek Basin Plan contains recommendations to correct or reduce flooding and water qunlity problems in the basin and to he�p prevent problems from worsening in the future. Thnnk you again for writing and expressing your concerns. We look forward to working with you in �, the protection of wnter quality and habitat values in Moy Vnlley. If I can be of further ussistance at this point, please do not hesitate to contnct me ngain. Sincerely, Nancy Hansen � Mannger Water and Land Resources Division King County Department of Natural Resources 2 ��ca � � � � ��t � `�n Ri� Q , �� ort-�. �� °*'n"�v F�x� =��'� "�r s 'P�'�' �l 4 _ r .r�"'+�i,�z� :�"�a��N��i5u�t�;�. ,�,, �,��5 _ ��Q � � .s-;i . . _ Y�: . :.; .� =:�,�e �.-. -_ -�a'h:'3"�,�s-a- `�y . � , -�: rrrv�s�cAr�or�REQuEST �' �` `•� � n TYPe;_,�_ ZOBLEM:'� � � ,� � - - ..,:` k ..:,, �i r y `�� i ]S � �' 7 �`��,.F�x '`l r �� '.:: � - i�` r �; `> .,,Z�' ^,O��-z. 1�GEIVED BY �-�`�`;� ' - ' F �-;�D'a�e.��/`�t�a�� OK'd b ��; -�Fii:,�No: �-2U01 =.�� - Rece2ved fram ` '' � y. � — ' -�`` ,= �y � - t , } _ � s ; �. � . : � � �" '-�� (Day} �� `5 `�+��(Eve� � ` } � � .,�� l �`'} ' � NAME: �`��C./4UD�ig' DO�f/iU�GL� � '` � ' PHONE ` �`��-��. � '� -, '�.�tt ADDRESS. �__ /O � /��""' ': / `t7 Tr� �� ''�� Crty `/�Ci�TO€iv?' � State�. Zlp�- _-T'f�� -_:.. .� �.. :. , - �p'o`S' LOCATION O�PR�JBLEM, IF DIFF�RENT: � . . .�3 ., ; � _. ;; --� t,.� . ,,., ; . ._ . ._ . ,r �� _ _ Access Permission Granted � ; Call Ftrst (Would L�ce To Be Present) ❑ .. ' . , - , . . ,3t:� � - . .. � � .. � . ... . � c _-a"' - � . .. _ � . , . . .,. - . . , ..�._ : . _ . ._: . - .. ;.�. • � -�" � ..,... . . �.:.. �...,. -.' •:_.�, : .... . � -.-. ..:. _. . . . . :�... -� . .:.__ . .:� . . . . .: _ . � � � (_� �O�I � .�o� Sf�z�r l/1�,. �i�TT-y , _ _ . _ _ - . _ �Lv��/��; - �� T/�c�t-�.� ��rT�z . �/�� c�.�v�.1� Ta ��y�Toit �rv2�� ; KC .� �So�=- o�Z .piv2. .� �,�o� - �� Plat name: Lot No: Block No: Other agencies involved: No field investigation required •� �'�;: � }s� ,�/,e £ � � � `� l�a S T R Parcel No. /7� �07 U�� Kroll�� Th.Bros: New Basin��'� Council District�� Charge No. RESPONSE: Citizen natified on by: phone letter in person � DISPOSITION: Turned to on / / by OR: No further action recommended because: Lead agency has been notified: �. Problem has been corrected. No problem has been identified. Frior investigation addresses problem: h SEE FILE# Private problem-NDAP will not consider because: Water originates onsite and/or on neighboring parcel. Location is outside WLRD Se ice Area. Other(Specify): DATE CLOSED: � / �2/ D( By: _�1V�/ L-C �C� S'�'+� � .. .. _� , -.. . ,. __. .. �_ .-. ___ ..,� ___.__�_ _.. ��` _ " King County �xecuti�:e R011 SIMS ��'�� 7une 7, 20Q1 JUN � 1 200� , r�nvu..vvrv�� ClaUdia Doruiell •NATER&tANp RESOURCES Di� Y NArvr��o�«��, ,.Q►,►4r,�o 10415 — 147'h Avenue SE Renton, WA 98059 - Dear Ms. Donnelly: � I am writing in response to your letter of May 4, 2001 to United States Senator Patty ' Murray. Senator Murray forwarded your letter to me requesting that I look into your concerns and respond to you directly. Most of the questions raised in your letter have been addressed in previous correspondence dated February 20, 2001 and April l2, 200I, from Nancy Hansen, Manager of the King County Water and Land Resources (WLR)Division of the Department of Natural Resources, and me. Copies of these letters are enclosed. I have coordinated this respoi� with Ms. Hansen, and this letter constitutes a response from her on the specific questio� � you have previously addressed to her. ; I want to first reassure you that King Co�nty is not ignoring the Endangered Species Act (ESA), and shares your goal of protecting salmon in May Greek. King County is considered a leader in the development and implementation of new programs and regulatory updates to address the listing of the Chinook salmon and Bull Trout in response to the ESA listings. 'These approaches wi11 be applicable Countywide, including May Creek. In your letter you asked why you, as a downstream properiy owner,must accept increased runoff and sedimentation from upstream development. King County's drainage code is designed to minimize impacts from new developments and comply with Washington State case law. Washington State case taw states, in general, that a property owner is not liable for incremental increases in storm water quantity or velo�ity in a downstream natural conveyance system provided that the increases are not done in a negligent manner and water is not diverted from one drainage basin to another. Core Requirement #1 of the Surface Water Design Manual prevents diversions of water from one basin to another. Core Requirement #3 requires flow control facilities to reduce peak flows Ieaving a development to match peak flows occurring prior to development. Core Reqt�irement #8 requires water quality facilities to reduce the impact of development on the quality, including sedimentation, of our local waters. While following the Manual's requirements . will reduce the effects of new developments, it cannot eliminate all the effects of new � � development. KINC; (;C)INTY" (;nl�R"1�HOUSIi �16 "I�IIIIZD �\\�I?iVUli. RUOflI 400 SEr�"I"I'LG, �V�\ 98104-32�1 (206) 291r104Q 296-019•1 I�,�X 29(�-0201) "I�UD I:-m:iiL• ron.sims@mc�rokc.�ov - • '��ng G��:My�s;��r Equ»r Opponunrry,'AlGrrn�f�ve A�f�un EmplpyBr and cDmp!ie5 wilh fhe Ame�icnns�vdh Drsab�l�hes Acf '� 7 7Y11 -03 age __ _ �.--- ._�._--_-- ,�.___,._-�-�__,.._._��. - - _ �._,. ._. Your letter also expressed concern about the 80 percent Total Suspended Solids (TSS) removal of a proposed stormwater detention pond. The 80 percent removal of TSS goal for new retention/detention (r/d) facilities is a matter of economics and technology. Larger r/d facilities would remove more suspended solids, but larger facilities are also more expensive to build. The cost to build larger facilities is passed along to the consumer in the form of higher housing prices. From a technological standpoint, there is also a point where building a larger facility will not remove any more TSS because the particles become so small they wi11 not settie out without chemical treatment. The goal of 80 percent TSS ' removal was chosen as an appropriate standard because it is believed to provide the best cosWenefit ratio for removal of TSS and is the standard that is required by the Washington State Department of Ecology for stormwater quality. With regard to the questions yau feel Ms. Hansen has not responded to, here are the answers that she has provided me with: . l) What is King County's real plan for the May Creek Basin Urban area? There is no secret associated with the May Creek Basin Plan. The Basin Plan contains � comprehensive zoning and regulation recommendations to address issues related to future growth, as well as basinwide and site specific recommendations to address existing problems. May Creek Wetland #5 is a Class 1 wetland, which King County � Code does noi allow to be developed into a regional detention facility. However,one of the benefits of wetlands is that they store ]arge amounts of water. The basin plan recommendations seek to protect the natural benefits associated with the May Creek . system while addressing specific flooding groblems through capital projects and technical assistance. The "real" plan for May Creek Basin is the Basin Plan, which was very recently approved and adopted by the King County Council, the City of Renton, and the City of Newcastle. 2) What May Creek tributaries does King County consider important? King County does not typically undertake a thorough ranking of the relative importance of all tributaries within a basin planning effort. However, areas of particvlarly high-quality habitat which make significant contribvtions to the resource ' base of the basin, are identified as "Significant Resource Areas" and are categorized as either"Regionally"significant, or"Locally" significant. Stream reaches and :�.� S 1:�1��l areas considered to be Significant Resource Areas in the May Creek basin arc identified in Appendix E of the adopted basin plan. This is not to say, howe�- t �1� �� Greenes stream is an unimportant resource ju ' habitat values as the significant resource are;: l ; ; - -- _ . ._ . .. ...--._-� _ ._ .. _ Page 5 . _ I also understand that you have been in contact with the King County Ombudsman with your concerns. I think this is a very appropriate step if you feel that you are not getting appropriate treatment from County staff. 1 have asked Ms. Hansen to work closely with the Ombndsman's office to ensure ihat the Division is being appropriately responsive to your concerns. If you have furlher questions or concerns, ptease continue to contact Nancy Hansen, Water and Land Resources Division Nlanager in the Department of Natural Resources, at (206) 296-6585. As is King County procedure, she will assign follow-up to the staff with the appropriate programmatic and technicaI expertise. Thank you again for taking the time to write. ely, Ron Sims King County Executive RS:Im ; Enclosures cc: The Honorable Patty Iviurray, United States Scnator The Honorable David Irons, King County Councilmelrt�cr Duncan Fowler,King County Ombudsman Paul Toliver, Director,Department of Transportation (DO"T) Larry Jaramillo, Senior Engineer, Road Services Division, DOT Pam Bissonnette, Director,Department of Natural Resources (DNR) Nancy Hansen, Manager, Water and Land Resources Division, DNR 1 � � � i I i ,{ KING COUNTY WATER AND L�1D RESOURCES DIVISION - �"�RAINAG�-INVE��`�`�'�ON REPORT ��.;�,,. � �._ INVESTIGATION REQUES'�'��"��'��%��'.�y`'z,;,�f1`�,tt�F�'*z�:t,.�€°`�,;,,s'.��, ,,;r;.�, I { l J'Y 'ROBLEM: F'[.G�(�v�� . . ' / ,r � � RECEIVED BY: �,�� Date: ��/2?(�� OK'd bv . • F�L�1'�Ia ��OI a7�p� - � - '� . • � _ i a �J� r j '� y�:z3 Ly}, .. Received from: , - � - -- �L ;��+�'�. ` � �;._; , � ;. �:_. . ' � � �DaY) �1 (Eve�; X'�` -NAME: L�C.�YJO� Dl.vif/ELLx ' PHONE ZSSr �f.j 4�0 '��' `'' L � f � ; , , , , , ;',.,, _ � .,� r _ - ' ADDRESS: J b�!.� I�7 T��v�% SE City 2�y��0�'� � State G�/�i Zig��5�—cl..f LOCATION OF PROBLEM, IF DIFFERENT: - . 'i Access Permission Granted � Call F1►'st (Would Like To Be Present) D . , � _ , . : � . . Gt/.�9�T�2 �/10�! T��,� lv�lGt��So�e'J �'�o.��/Ct Y � Fc O�-tJs'/� . ��S.S C L/fvO</�,'I /-�C� �Sf �COAp Lv ff�cf,s /S /�/ /�y �/•*�is�r/.��v T�/yEo C'�v.�r y �/G�f,--o r-w�Y, S'b� � tt� E/vf�� ,<i�v� ��/6 �: ,f'�ri�� C cS<�-iyti �C To ril y To KE�P w�-rc�C Oy TE/� �r��.c c s��c io� .-�� .�o�� .BvT e,�.tf C�r T�c L�v�c2 r,u�,c� D�rnzoyf � � ��, f _ i �� D�Tcf{ /�•Y/J ,4c - — _ r L—t 9 — �FT,yrr� Fo.c ��r Li¢TCL�/ /C/� i o /.�tI Fi�i N L��. Plat name:�A''t,u," V� Lot No: Block No: Other agencies involved: No field invesdgation required j:.. �°.s T=� �5..� � S�-S.� � � I/a S T R Parcel No. 177(a D�D�_ Kroll �G� Th.Bros: New oZ�o RDP Basin � Council District��_ Charge No. RESPONSE: Citizen notified on by: phone letter in person So.yr�rr•yc.-s � !'d ��pl DISPOSITtON: Turned to�� on / / bY�OR: No further action recommended because: Lead agency has been notified: ` Problem has been corrected. No problem has been identified. Prior investigation addresses problem: SEE F1LE# Private problem - NDAP will not consider because: Water originates onsite and/or on neighboring parcel. Other(Specify): DATE CLOSED: 7 / �-r / d�— By: � ��Z/�C� �p�•-r/Gc7� / - _..,._ a }. . _. . :. ... : . . .:.: - - - - _ � ,�,. . _ �. . ... .; . ._,_ . . . ..,>:. Juhnke, Leonard � �� ._ ` -- - � From: Sleight, Brian Sent: Thursday, January 10, 2002 3:01 PM To: Kipp, Greg; Sims, Ron Cc: Whalen, Caroline; Brandon, Rod; Bissonnette, Pam; Grigsby, Daryl; Dougherty, Linda; Tiffany, Christina; Crawford, Curt; Granlund, Jeff Subject: RE: RCW 42.17 and FOIA violations ron;greg. . .i have to agree with greg. . .i think we (swm, ddes, and recently dot) have been very responsive to claudia, it's just that she doesn't like our answers. as you know, it is important to be specific with claudia so you know just exactly what problem you are talking about. in the present case, i have talked to her about two different "enforcements" recently: 1) the stream that flows through her property now flows onto her property at a different location than it used to. she says she saw the neighbor digging the new channel but has no evidence (photos) . i talked to the neighbor (mr. wolf) and he said the channel changed location in the 1996/97 ice storm when some trees fell over. this looked very possible (there were a Iot of fallen trees still on his property) and there was nothing indicating he had done work in the channel (not surprising considering it happened in 1996} . i told claudia that i could not take action or ask ddes to investigate without some firm evidence. she said that ddes had looked at it several years ago and made the same or similar determination. 2} the neighbor at the north end of claudia's street plugged a cross culvert because she thought it was saturating a vacant lot she eventually wants to build on. claudia notified me of the problem in late november or early december. i investigated the problem, ��identified that a violation had occurred, and opened an enforcement under k.c.c. 9.04 (so �ides was never notified) . claudia asked for a copy of the enforcement letter before the ietter had been sent. i told her i wonld send her a copy of the letter when it went out � and return the 30 cents she included in her request. the letter went out yesterday and � ', sent her a copy today. fyi. . .in my conversation with the woman who blocked the culvert, ' got the impression that she has nc intention of unblocking the culvert so the enforcement may be difficult and take a while. i've been in contact with the lady (ms. �norse) whose garage had water in it as a result of the blocked culvert. she and i had originally talked about a possible ndap project to clean the pipe that overflowed (we thought it might be obstructed) . further investigation showed it was a 6 inch flex pipe. our vactor operator saic! the equipment to clean pipes would just as likely damage the pipe as successfuliy clean it, and more likley damage the pipe if the blockage was roots or something solid. with cleaning not viable, ms. morse and i discussed a replacement project that would have to compete with other ndap projects for funding. she was not interested because it would mean removing all of the vegetation (several large trees and stirubs) along her property line. she and i both agreed that the best resolution to her problem was to p.u-rsue the enforcement and get the culvert opened again. dot is involved because they are going to clean the roadside ditch on 147th as soon as they can get an environmental approval . i am coordinating with them to have an ndap quick fix project constructed at the same time the dot crew is out there. the project will keep water from washing over the privately maintained portion of 147th just in front of claudia 's property. i explained to claudia that the work involved paving and, if the weather got cold and wet, the project might not get done until this spring. wlyd's work on the enforcement for the blocked culvert is in no way tied to the dot work or them having to wait for environmental approval. jegarding our responsiveness, i sent claudia an email (which she acknowledged and thanked � for) the same day i received her foia letter (1/2/02} informing her that the letter did �t exist yet (i had just sent a draft to word processing} but that i would send her a copy when if finally went out. regarding our response to the blocked culvert, i met with her to initially look at the 1 i - _. .._ _- . .. _ . . _ . � ,'n,a... �.� �'.� -. . . woman who blocked the culvert an ''"sta ` ' •.;.,-._.- ,�_. �ot water in her garage as a result of the culvert, went through an ndap� evaluation ' ` � .�rocess (including more contact and coordination with dot staff) only to have her decline a project, coordinated with dot staff to have a crew repair some damage to her driveway, and i met with dot staff to see if they could do the other quick fix. not to put words in her mouth, but all claudia sees is that the culvert is still plugged, the stream is stiil relocated, the roadside ditch has.n't yet been cleaned, water still runs over her road, and we are not going to do anything for her neighbor. . .but i don't think that means we have not been responsive. hope this helps. sorry for being so wordy. . .it's hard to stop when talking about this neighborhood. Brian Sleight, P.E. BSLS 206.296.8025 —Original Message— From: Kipp,Greg Sent: Thursday,January 10,2Q02 11:41 AM ' To: Sims, Ron Cc: Whalen,Caroline;Brandon,Rod;Bissonnette,Pam;Grigsby,Daryl;Sleight,Brian;Dougherty,Linda;Tiffany,Christina Subject: RE:RCW 42.17 and FOIA violations Ron -- I think SWM is the appropriate Department/Division to respond to the most recent(1/9/02)e-mail from Ms Donnelly. This e-mail speaks to a plugged culvert that was investigated by SWM. While she mentions that SWM advised her that there was a code violation, no such report has come into DDES from SWM. To the contrary, our most recent conversations w/Brian Sleight of SW M indicated that he saw no code violations out there. � Ms Donnelly made a FOIA request of DDES on 12/18/01 for spec�c information about which developments in the area required a level 3 detention pond. We provided her w/that information (see red highlighted response from Ms Donnelly, below) In her 1/9/02 e-mail, she stated her recent request for information was not made to DDES, however it is not clear to which department she made the request. I I am cc'ing folks in SWM to see if they are aware of any recent request for information from Ms Donnelly. If so, please let ' Ron know and respond to Ms Donnelly on his behalf. If not, also advise Ron and I guess we should ask her to specify I which department she made the request of. I DDES and DNR have been extremely responsive to Ms Donnelly over the years..she simpty does not like the answers we , are providing her and I doubt she ever will. That being said,we still need to respond to any and all FOIA reguests_ gk -----Original Message----- i From: Sims, Ron Sent:Wednesday, January 09,2002 10:26 AM � To: Kipp, Greg Cc: Whalen, Caroline; Brandon, Rod � Subject: FW: RCW 42.17 and FOIA violations Greg- lease follow-up, thanks.-r�n . � P ----Original Message----- From: Mike and Claudia Donnelly[mailto:thedonnellys@oo.net) � Sent: Wednesday,January 09, 2002 10:32 AM To: ron.sims@metrokc.gov Cc:david.irons@metrokc.gov � Subject: RCW 42.17 and FOIA violations I Dear County Executive Sims: 2 t I have told ou over and over a ain � - -- ` • � Y g thaf K oes n - o- . ;w._ ,.._. us who live m this part of the May Creek Basin area. Here is another � � � example. A neighbor down our road has plugged a cuivert draining water from 148th Avenue SE through her property to Greenes Stream. She plugged the culvert up because she didn't want the water flowing through her property. In November, this plugged culvert sent water down a smalf, � shallow ditch alongside 147th Avenue SE. That excess water caused I sheet flooding over the road. It also caused water to go through I another neighbor's garage. , This problem was called in Roads and SW M. It was investigated and supposedly something will be done--once Roads gets the permits its has �� applied for. '� SWM investigated and found out that this neighbor(plugging the culvert} , is violating County Code. They were going to send a letter to this � person advising them of this violation. Well, I talked to the neighbor who got the water in her garage and asked � if she had gotten a copy of the letter that was supposed to be sent. She said that she might get a copy—she wasn't sure. , On December 28, !typed several letters to KC Departments(not DDES (emphasrs added by kipp)—even though I don't I like DDES and they don't answer my questions) �� requesting documents under the Public Disclosure Law(RCW 42.17}and FOIA. I mailed these letters on December 29. I also sent a letter to '�Washington State agency—they responded promptly. ,ieard from one person--they said that they'd retum my 30 cents and the letter to the person plugging up the culvert had just gotten back from the Word Processing Dept(this is last week). I stifl haven't gotten a copy of that letter. Has it been sent????? I sent this person a note today asking if the letter has been sent and if not, when . will it be sent? So far, no response. The other KC agency hasn't responded at all. The letters should have gotten to the people on December 31. If 1 have to go to an attorney to get a response from this KC agency, I will send my attorney bill to you. You might want to send out a note to all County employees that the public has a right under FOIA and RCW 42.17 to see and have copies of County documents. Again, maybe you can answer the question as to why KC doesn't want to make my neighbors comply with County and State laws? There is Mr. Wolf,who change the course of Greenes Stream and he didn't get fined; there are the 2 Code violations on the Luck property that have been in limbo for many years now; there is the Nagel culvert problem? But then another neighbor put a little dirt in her back yard next to Greenes Stream and she had to pay a fine? Why are people treated differently? Thank you for your time. � 'ia Donnelly ----Original Message----- From: Mike and Claudia Donnelly[mailto:thedonnelfys@oo.net] Sent: Wednesday, January 09, 2002 1:59 PM To: paula.adams@metrokc.gov; robert.ware@metrokc.go� � � . ..,_.,. _ .r. . _� •, .�-_ ,. .�<�..� _ Dear Ms. Adams: I just received your letter with the list of developments that were required to have a Level 3 detention pond along with a Leve! 3 Flow Control. THANK YOU VERY,VERY MUCN FOR THE INFORMATION! !t was nice and timely. I don't need to see the files—so they can be returned to wherever they are kept. For this part of my research, I just needed the development name and file number. For the next part, I need to go somewhere else. But thank you, any way, in having Mr. Ware keep them for me. Mr. Ware is a wonderful, friendly person— I like him very much. He is a good asset to DDES. You are, also, a p{easure to work with. THANK YOU AGAIN. Claudia Donnelly .� i • � � 1 � : A J � / �' 3. �_ ',�-.__ . _ _ � . ". k.�:. �R' � Y: �•�'4�;.. - ,�-� I � NEIGHBORHOOD DRAINAGE A � - _ QUICK FIX NAMB: DONNELLY COMPLAINT NIII�BR: 2001-0765 ADDRSSS: 10415 147� AVBNUB 30IITHBAST PROJBCT DBSCRIPTION: ADD AN ASPFIALT APRON TO A DRIVEWAY AND DIG A SHORT ROADSIDB DITCH TO CONVSY WATBR THS EXISTING ROADSIDS DITC}i. OFFSRBD TO ROADS ON 12/20/O1 VIA JBFF GRANLUND_. 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( 1 NAME:' /Ll/f X 1 r1J� � /(//-� �L PHONE Z3S'� 7•r/6 ADnxEss: /d Z'I� l�F�T� �r.� SE City �PC�Tc�-U State�-`/�- Zip `�'8'aS� IACATION OF PROBLEM,IF DIFFEREN7': Access Permission Granted � Call F�tst (Would Like To Be Present) � .��4 x�� ov�N?- ��.c �.�d�C�z r y �ti C 9 9� , Tr.�c,�� r � �x�sr�ti� ��ss �v��cr o� Fr� o�o�� rY_ s�E �CC��T� Y l�Cf/Ot0 � rJ��p p.v _ r�� v�c�-�r Lo� BdT rffi�kS S�f�' ilir/�Y ��T To; B � 1 T /.S Toc� �vc r �BE t/avs'E oF � �.S c H.sj�t G E �i C O� T"fc �v�f/�i. S�E �6�0�� r�c �v��, w�a�� yo� �'OyOl �ti T�fc .�o.�.t'/OC iCo� v�vT�� !r r=G�"�,s- To D I TGH O�v TFl� �/�fT Jl.�� O� !f/�' ,S-�i9 Y �O'�' �c�•'� r�i�y�Y7J �� ''�rE2 To � %l�G JOr�Tl.� , �i¢X/��E �.vd i F C T c��vS'c J- /1` ��o.B G��/ �'Q"J T S�O� O F T�G •�O's`O � �� Sf�� "w�c c. ��e�� w e Tt`�" �T T� ��v �' jf.I� � T l� Plat name: U W'"� • �`' ' Lot No: Block No: rh`� �� Other agencies involved: No field investigation required � -� i�a S T R Pazcel No..5o23��7 Kroll d� Th.Bros: New �J RDP Basin 1`'ti? 1�..�/ - Council District�_ Charge No. -� RESPONSE: Citizen noti�ed on by: phone letter in person M�� G� � UNr��n c.u��T o� �.� � 3/ woz . P��.�.. �S�- �� DISPOSITION: Turned to on / / by OR: No further action recommended because: Lead agency has been notified: � Problem has been corrected. No problem has been identified. Prior investigation addresses problem: SEE FILE# Private prob)em -NDAP will not con'sider because: Water originates onsite and/or on neighboring parcel. � Other(Specify): DATE CLOSED: / l�/ OZ By: ��gL�jy� �p�C?-�j 1'.� � -� .._.-. .... .. . . � .`4 :`g�3 E��FYJ?�.�r" - - �:t,. _ . . . . . Z ;i'- sK, � �. , � . King County �� Water and Land Resources Dlvlsion � Department of Natural Resources 20]SouthJackson Slrcet,Suitc 600 ' Scattic,WA 98104-3855 (206)296-6519 Ja uary�,��a��`�` Maxine Nagel I0217- 147`�Avenue Southeast Renton, WA 98055 RE: Drainage Complaint #2001-0842- Drainage Culvert Obstruction Dear Ms. NageL- On December 12, 2001, King County Stormwater Services(SWS)Section staff observed that the culvert under 147"'Avenue Southeast that discharges onto your property had been plugged. Water was backing up on the east side of the street and flowing onto the roadway. The plugging of the culvert adversely affects the capacity of the drainage system and water flowing on the roadway creates a hazard. � This letter is not a formal enforcement action as authorized under King County Code 9.04. Its purpose � is to bring these drainage problems to your attention before they cause personal injury or damage to public or private property_ As the person who stated she blocked the culvert,you could be liable for any personal injury or property damage that results from the blocked culvert. There has already been an overflow of the downstream system that flowed into and damaged a garage. Also, if you decide to setl your property, this potential enforcement related to your property must be disclosed to any potential buyer. Thank you for your attention to this matter. Please call Leonard Juhnke, Stormwater Services Section Engineer,at(206)263-6457 within 30 days of receipt of this Ietter to discuss resolution of this matter. Sincerely, �� i o2�q �ro�s� c � Curt W. Crawford, .E., Supe ising ngineer �1tZj ZZbr- 76,3p Stormwater Services Section 25,� --�57 �So( �yK �oui.v,j ,!C. CC:BS:J43 F'�voO��o �"�C Enclosures -� cc: Brian Sleight, P.E., Senior Engineer, SWS Section Leonard Juhnke, S.WS�Section Engineer Jeff Granlund, Supervisor Roads Maintenance Division 2 g� King County '` >, � Water and Land Resources Divislon '" ,�� Dcparlmcnt ofNatural Resources � "L01 Sou1h Jackson SlrceF,Suitc 600 i ScatUc>WA 98104-3855 I (206)296-6519 (206)296-0192 FAX February 20, 2002 , Maxine Nagel i 10217 - 147`� Avenue Southeast �, Renton, WA 98055 � RE: Draina e� Complaint�i2001-0842 - Drainage Culvert Obstruction I Dear Ms. Nagel: Thank you for your response to my previous letter to you dated January 4, 2002. A site I ., �j inspection on February 20, 2002 confirmed that the concrete obstruction has been cleaned out of the culvert under 147'" Avenue Southeast in front of your property. � Thank you for your attention to this matter. If you have any questions, please call Len Juhnke, Water and Land Resou"rces Division Stormwater Services Section Engineer, at (206) 263-6457. Sincerely, � ,, i Curt W. Crawford, P.E., anaging Engineer Stormwater Services Section CC:LJ:inBi� cc: ]eff Granlund, Maintenance Division 2 Supervisor, Road Services Division, Department of Transportation Brian Sleight, P.E., Senior Engineer, Stormwater Services Section, Water and Land Resources Division, Department of Natural Resources and Parks Len Juhnke, Engineer, Stormwater Services Section � 1 ga 1 � I�IING �OUN'TY WA'FER AND L , RESOURCES D ' .._ IOI�� ; ��},�. R Si ;'= ' ,y r . S Ti �o ��X;r�r � , :�c,f.. �tif '�'J�i.'"��eT'-'{ t� � � . i3 � �` :-e'- ti�_7-�,-'Ya�x��i'=�'"'v� il, `� r'r �'� s'� � � �,�� . 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Chazge No. RESPONSE: Citizen notified on by: phone letter in person L�(��.L S�yT l/l�( D'Zi 30C��S l�riGCVOCl� wt%!� �Tic�it, DISPOSITION• Turned to on / / by OR: No further action recommended because: Lead agency has been notified: � Problem has been corrected. No problem has been identified. Prior investigation addresses problem: SEE FILE� Private problem-NDAP will not consider because: Water originates onsite and/or on neighboring parcel. Other(Specify): DATE CLOSED: � � /0 i O'Z sy: _� � �:-. . . .. . . . . _... - . . , � � - II�I . . :S: }.. . .� . " . � . ..-%,&� �..I. y.:` e' r .ti,y+�� t.e y w�:i�,. z - - 4��` . 7'� �� . , - -s,:. t �.,'..' . ., ,.. ..::,r.sc: . - - - ........ ._ .. . _ . , . ' I . .. . . .,,. �. ,... . . . � Sleight, Brian ; � From: Sleight, Brian � Sent: Wednesday,January 02, 2002 335 PM � To: 'thedonnellys@oo.neY ! Subject: Nagel enforcement and quick fix I received your letter today regarding the Nagel enforcement. The letter has not gone ou I yet (i just got it back from word processing today) but I will get you a copy when it is I sent out. I'll also send your 30 cents back with it. Technically there should be a I charge for the copy but our office doesn't accept cash (only checks) and even if they did �, the cost in time for me to get a receipt and such for one copy would be way more than the i cost of the copy. 'I I Len Juhnke and I met with D.O.T. staff last week to look at the quick fix. I called you I before we left downtown but you were not there. Len will be handling the project in my I office. The project will involve paving that area that the cars drive over, extending th� I berm, and digging a shallow ditch a short way to the north. The project will not dig the ditch past the area where the retaining wall is failing. The idea is to piggyback our I� work with the roadside ditch cleaning because the crew will already be out there. Therefore, the timing is dependent on the roadside ditch project. At the time of our meeting, the environmental paperwork had been submitted and they were waiting for approval. Even with the intent of the piggyback project, if the weather is not appropriate for paving when they clean the ditch, they won't do the quick fix. The quick fix will still get done, it will just get done at a different time when weather permits. If our current run of dry weather holds, it shouldn't be a problem but if we start gettinc steady rains day after day, the weather and crew availability could push the project off „ _� to this spring. � � Brian Sleight, P.E. BSLB 206.296.8025 A 1 i� .�... ._ . , . _ ._ _ - � -. - - ;_ -_ . _ _, _ . � �� 1 4 - 0 15 147th Avenue SE i I'I � Renton, WA 98059 � December 28, 2001 � ; Brian Sleight KC WLRD '� 201 S. Jackson Seattle, WA 98104 Dear Mr. Sleight: I just talked to my neighbor to see if she had gotten a copy of the letter WLRD sent to Maxine ?? regarding the blocked culvert at the end of 147th Avenue SE. She said she had just heard from you and that the letter maybe on its way. Under RCW 42.17 and FOIA, i would aiso like a copy of the letter sent to Maxine • '� about her blocked culvert. I am enclosing 30 cents to cover the cost of this letter. Also, what is the status of the "ditch" being dug out alongside 147th? Thank you. Sincerely, ��u� !n'�� !n Claudia Donnelly 1 . , �.�.� KIl�TG COUI�TY WAT�R��ID LAND RESO�IR�ES D.��ISION �-� ��, �— t�n� � ; j .� �' �*„�r ��> �"�� u' ��E � ''' � � � ; a J f � :.� � < � DRA�# �� '�I�� . �4R�";��.�� _ _ _ .�.' $s � � .�r�9 '' � � "i" ., r �' �._ f ,�c x � �'-�.�i� .-,°��f'`��' � �.-'�'v'��' ^�� ; ."`'K x�` `# ,��C� h, J� 'z �.� �`�`.t� '� ::,.�� `F` �``aa '� �v� �f F r"r dY��'in,;�ti .t�.,r� g�'�k�' c�t�i `�ct �E. 1��.T Y� . �.,y�r3t z 1's- Q�y 1 }t�y�-s-�JI��ISl1�1�C��v+%Yii-��-X�'a�� i#�`"`F'�'`�`�.t'� ��.Elv�t' ` `�D�f..'s� ' 'c z :"3��t ¢ , "fr �¢ �'�� . �� o�.��`�� ,� � x�� ' L �.� - � �� . r � '*t � ��`�� .t�, '�-,. s; �` � �x a a�� .>t,..�- .,��.., r c . ..' .i u s�ei� �,-�-� '^^ � -s..r �y.�. �� a��:: ��,�.`!.,. �:"k��±�'��;�,`��'B �,��` ��`�� ;�f-��€�.��``r��`�� . z•x z,,: �,. �.��.a ts`�� -. ��}_��C'� ;� `4 p'� ��IIafe� f :f a Z= �OK'c�b�'��' .h � �ir.��i�.�� .�.y � �� e"y��a�fx.�y.,iy '�r"� �£�� " ".-'� d _w�. �h�+r+y. �:y- -4 . -L�-.-,_y �r i` - ,��" -� .. 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Plat name: Lot No: f Block No: - Other a encies involved No fieid investi at�on re uued �T '}��p7 -�� --� - �,r�'�'�p�� ` -- '' {`.� �� r"''b,�+�� - _ 3� - - ' ��1aO1►1�J��.��_��►l�t11r�' " '��'y I JIJ�J� V _ __ . � � � %a S T R Pazcel No.��7�Dy��.. �'oll�� Th.Bros: New RDP�� Basin� Council District�_ Charge No. RESPONSE: Citizen notified on by: phone letter in person � - DISPOSTTION: Turned to on / / by OR: No further action recommended because: Lead agency has been notified: � Problem has been corrected. No problem has been identified. Prior investigation addresses pcoblem: S�Fv,E# _ Private problem-NDAP will not consider because: � � Water originates onsite and/or on neighboring parcel. . Other(Specify): DATE CLOSED: 2 /� /�2 By: � '��<<- S��_ g� ��YC . . � ��_� � ., a.;� ��. '` �'r� � .. .. � n� . �,i��'�- :�c.a, dy� -_,. � . :.s i; .�s `L < v ��' _ _ � ��j,� H� .�: { � '�- ,� ;} 5 -�.t. zv. , , , . ;�F:...: .,.,. . �,_ _ . •yi-j�Y r�`� Sleight, Brian From: Grigsby, Daryl Sent: Thursday, February 14, 2002 11:21 AM � To: 'thedonnellys@OO.net' Cc: Sims, Ron; Irons,David; Bissonnette, Pam; Shannon, Kathleen Subject: RCW 42.17 and FOIA violations Dear Ms.Donnelly: ' Thank you for your email transmittal of January 9,2002,to Executive Ron Sims,expressing concem about King County's compliance with the Freedom of Information Act(FOIA}and its response to the Public Disclosure Law(RCW 42.17)request you made to several King County departments. Executive Sims has asked me to respond to your concerns. Your email also expresses concems about King County enforcement of drainage problems in your area. I understand your public disclosure requests were made to the Department of Transportation(DOT)and the Department of Natural Resources,which is now called the Departrnent of Natural Resources and Parks(DNRP). DNRP staff sent you an email on January 2,2002,the day your request amved. The letter you requested was only in draft form at the , time of your request and,as such,was not yet disclosable by law. Rather than ask you to resubmit your request after the letter had been signed and sent,DNRP staff said they would send you a copy as soon as the letter was sent,which they did on Janaary 10,2002. j DOT staff sent you a letter on January 9,2002,five working days after yow request arrived. Your request involved a large file and it was not clear what specific documents you were requesting. DOT staff thought the best response would be to make the file available I for your review so you could decide which documents you wanted to copy_ � From my understanding of RCW 42.17,the response from both the DNRP and the DOT exceeded the requirements of RCW 42.17. �� In regards to your enforcement concerns,King County's enforcement authority applies to all of unincorporated King County_ In the I _�practicaI application of the codes granting such authority,there is no distinction between people living in rural areas or in urban areas. King County,however,has a high burden of prnof when it comes to taking enforcement action against a code violator. As unfortunate as it may seem,there are tnnes when it appears a code violation has occurred but King County cannot take action becavse we cannot prove that a code violation occurred or do not Irnow who perFormed the act. , In the case of Mr. Wolf,both the Departrnent of Development and Envuonmental Services(DDES)and DNRP staff have invesrigated the complaint and found no evidence that a code violation has occurred. Mr.Wolf stated the stream relocated when several�-ees fell during an ice storm in the winter of 1996/97. This is a natural and common occurrence and,wiih the number of fallen trees on Mr. Wolfs property,there is nothing to suggest it did not occur. WitI�no physical evidence to support an enforcement case,the word of one neighbor against another is unfortunately not enough to overcome our burden of proof. In the case of the Luck property,enforcement action was initiated against the property owner for installing a culverE in a sensitive area without a permit. The property owner has applied for a grading permit for the culvert installation to resolve the enforcement. There are other code compliance issues on this property but they cannot be addressed until the grading permit is issued so the rest of the ptoperty can be accessed. � In the Nagel case, Water and Land Resources Division(WLRD�staff has an open enforcement case for this violation and the fust step in the enforcement process has been taken. WLRD allows the property owner 30 days to voluntarily resolve the problem before a formal enforcement process with possible civil penalties is initiated. If Ms.Nagel does not resolve the violation within 30 days,she will be sent a Citation in accordance with King County Code 23.20_ My staff who are most familiar with your neighborhood do not recall a fine levied against your neighbors. However,if your neighbors think the fine was inappropriately levied,they should contact the department that they were working with. The resolution of any code violation is greatly affected by the conduct of the violator. While the enforcement and possible enforcement cases you have mentioned each have a dif�erent resolution and may not be the resolurion you want,there does not seem �be any inequity in the application of King County's enforcement authority. WhiTe I am sure the issues you have raised are of great concem to you,in the case of your public disclosure request,if you had waited an appropriate length of time(i.e.a couple days after the response deadline to allow delivery by the post office)you would have seen that County staff did comply with the requirements of RCW 42.17. Similarly, in the case of the enforcements you mentioned,County 1 staff is taking action as au onze y mg oun c e on e � issue they have looked at and determined that action cannot be taken(Wol�. I admire the amount of ef�'ort and encrgy you put info�' __, your community but I ask you to accept the determinations made by County staff and lunit future contacts to new issues. ; ! Thank you again for the opportunity to address your concerns. I hope we can move forward to new issues and opportunities. ' Sincerely, I�� Daryl Grigsby,Manager Water and Land Resources Division Departrnent of Natural Resources and Parks �I � � l z From: Bissonnette, Pam Sent: Thursday, January 10, 2002 3:45 PM To: Shannon, Kathleen Cc: Norton, Ann; Grigsby, Daryl Subject: FW: RCW 42.17 and FOIA violations Kathleen, laoks fike we are getting this ccf. Could you piease start it in motion? Ehx -----0riginal Message---- From: Brandon, Rod Sent: Thursday,January 10, 2002 3:30 PM To: Kipp,Greg Cc: Whalen,Caroline; Bissonnette,Pam;Grigsby, Daryf;Sieight, &ian;Dougherty,Linda;Tiffany,Christina Subjed: RE: RCIN 42.17 and FOIA violations ks Greg, Pam let me know when you have a response. rod ---_ -----Originai Message----- From: Kipp,Greg Sen� Thursday,January 10, 2UO2 11:41 AM To: Sims,Ron Cr. Whalen,Caroline;&andon,Rod;Bissonnette, Pam; Grigsby, Daryl; Sleight, Brian; Dougherty, Linda;Tiffany, Christina Subject: RE: RCW 42.17 and F01A violations Ron — I think SWM is the appropriate Department/Division to respond to the most recent(1/9/02)e-mail from Ms Donnelly. This e-mail speaks to a plugged culvert that was investigated by SWM. While she mentions that SWM advised her that there was a code violation, no such report has come into DDES from SWM. To the contrary. our most recent conversations w/Brian Sleight of SW M indicated that he saw no code violations out there. Ms Donnelly made a FOIA request of DDES on 12/18/01 for speci�c information about which developments in the area required a level 3 detention pond. We provided her w/that information (see red highlighted response from Ms � Donnelly, below) In her 1/9/02 e-mail, she stated her recent request for information was not made to DDES, however � it is not clear to which department she made the request. t am cc'ing fofks in SWM to see if they are aware of any recent request for information from Ms Donnelly. If so, please let Ron know and respond to Ms Donnelly on his behalf. If not, also advise Ron and I guess we should ask her to specify which department she made the request of. DDES and DNR have been extremely responsive to Ms Donnelly over the years...she simply does not like the answers we are providing her and I doubt she ever will. That being said,we stilt need to resporid to any and all FOIA requests. gk ----Original Message----- From: Sims, Ron Sent: Wednesday, January 09, 2002 10:26 AM To: Kipp, Greg Cc: Whalen, Caroline; Brandon, Rod Subject: FVV: RCW 42.17 and FOIA violations Greg - please follow-up,thanks.- ron ----Original Message--- From: Mike and Claudia Donnelly[mailto:thedonneflys@oo.net] Sent:Wednesday, January 09, 2002 10:32 AM To: ron.sims@metrokc.gov � � 1 �'�`�x F . . . .: ; ;: : ,, ,,,, , � . , / _ _ Dear County Executive Sims: I have told you over and over again that KC doesn't respond to those of us who live in this part of the May Creek Basin area. Here is another - � example. A neighbor down our road has plugged a culvert draining water from 148th Avenue SE through her property to Greenes Stream. She plugged the culvert up because she didn't want the water flowing through her � property. !n November,this plugged culvert sent water down a small, 'I shallow ditch alongside 147th Avenue SE. That excess water caused �I sheet flooding over the road. It also caused water to go through , another neighbor's garage. I � This problem was called in Roads and SWM. It was investigated and supposedly something will be done--once Roads gets the permits its has I applied for. , SWM irnestigated and found out that this neighbor(plugging the culvert) I� is violating County Code. They were going to send a letter to this ' person advising them of this violation. � Well, I talked to the neighbor who got the water in her garage and asked I if she had gotten a copy of the letter that was supposed to be sent. I She said that she might get a copy-- she wasn't sure. On December 28, !typed several letters to KC Departments (not DDES (emphasis added by kipp)--even though 1 don't like DDES and they don't answer my questions) requesting documents under the Public Disclosure Law(RCW 42.17)and FOlA. I mailed these letters on December 29_ I also sent a letter to a Washington State agency—they responded promptly. ' 1 : 1 heard from one person--they said that they'd return my 30 cents and the letter to the person plugging up the culvert had just gotten back from the Word Processing Dept(this is lastweek). I still haven't gotten a copy of that letter. Has it been sent????? I sent this person a note today asking if the letter has been sent and if not, when will it be sent? So far, no response. The other KC agency hasn't responded at all. The letters should have gotten to the people on December 31. If I have to go to an attorney to get a response from this KC agency, I will send my attomey bill to you. You might want to send out a note to all County employees that the public has a right under FOIA and RCW 42.17 to see and have copies of County documents. Again, maybe you can answer the question as to why KC doesn't want to make my neighbors comply with County and State laws? There is Mr. Wolf,who change the course of Greenes Stream and he didn't get fined; there are the 2 Code violations on the Luck property that have been in limbo for many years now; there is the Nagel culvert problem? But then another neighbor put a little dirt in her back yard next to Greenes Stream and she had to pay a fine? Why are people lreated differentl� Thank you for your time. � Claudia Donnelly z � `i'� KING COUNTY WATERa,AAti�.AND RESOURCES DIVISION � DRAINAGE INVESTIGATION REPORT INVESTIGATION REQUEST Type X ' __,°ROBLEM: tZECE1VED BY: BSL� Date: �6103 OK'd bv: Fu.E No. 2003 -��C Received from: �Y-�L ° � (DaY) �.� (Eve) L—� NAME: __c��v�- ;�o,v�v��y PHo� ADDRESS:.��S ��Z 7� �_��G City State Zip LOCATION OF PR�BLEM,IF DIFFEREN'f: Access Permission Granied ❑ Call F�►'st'(Would L�ce To Be Present) ❑ �- , S�C% �%/�C��1� L��/c. ��L� ��v Tfl �Os� ,Bi�ie� f��9,1- /r/C/�'/� /�`�/� �ov�l� � � '� ,ri�«�6at: �l,q-,6o.d ��u,v�v o.c r-r,� �t2 S- 6 F 7— �S6 Z '� , �t I ` )�1�lC. ��D��: TFf�QO.ri�vEG�Y.S L9o0.,�rT . I . � i Plat name: Lot No: Block No: � Other agencies involved: No field investi ation r uired . TQ B�COMPLETEB BY COhiPLAINT PROGRAM STAFF ` ' � ' `: _ _. _ _ . � � � 1�4 S T R Parcel No. l 77(D yd�o� Kroll,�� Th.Bros: Ne S RDP Basin� `-�-�- Councii District�� City Charge Na RESPONSE: Citizen notified on by: phone letter in person Ci/i��L. iC�S/��/SE SC�i7 3%��o„3r- � DISPOSITION: Turned to on / / by OR: No further action recommended because: Lead agency has been notified: � Problem has been corrected. No problem has been identified. Prior investigation addresses problem: SEE FILE# � Private problem-NDAP will not consider because: Water originates onsite and/or on neighboring parcel. Other(Specify): DATE CLOSED: 3 /ZI / 0.3 By: �_ � Sleight, Brian From: Michael/Claudia Donnely[thedonneilys@oo.netj Sent: Thursday, March 20, 2003 6:22 AM To: Grigsby; Daryl Cc: Sims, Ron; Cawaling, Cindy; Bissonnette, Pam; Sleight, Brian; Shannon, Kathleen; Maier, Mary; Ninneman, Scott; Moeller, Lani Subject: Re: May Creek Basin Area Mr. Grigsby: Whatever. I have given up on dealing with KC and Renton. The straw has only been put down where our neighbor originally installed it -- nothing more. It rained alot yesterday and in the past. I saw muddy water up against the straw bales. At least the bales were possibly doing something. - Thanks anyway. I Claudia Donrielly � I � PS: I know that you don't have any jurisdiction over Renton,but they haven't made my other neighbor do anything. I have already talked to NMFS and the last heard, they were investigating. Maybe I need to write someone else. See ya. On Wednesday, March 19, 2003, at 02:49 PM, Grigsby, Daryl wrote: Dear Ms. Donnelly: Thank you for your email transmittal of March 4, 2003, regarding the potential of sediment reaching May Creek. King County Executive Ron Sims has asked me to respond on his behalf. I understand that Brian Sleight, Stormwater Services (SWS) Section Senior Engineer from my staff, visited your neighbor's property on March 7, 2003. At the time, no sediment was leaving the site even though it was raining lightly. There were no indications that sediment had previously left the site. The , '� owner was not home so Mr. Sleight left a note on their door reyuesting that they contact hirn. � Your neighbor calied Mr. Sleight that day and was advised of his responsibility to minimize sediment transport from his property. Your neighbor said his intention was to stabilize the area this past weekend 3/21/2003 and asked Mr. Sleight to visit the site on Monday, March 10 to determine if the site was properly stabilized. A Monday site visit showed that straw had been placed on much of the site. Mr. Sleight asked your neighbor to extend the straw to the end of the existing railroad tie wall, which the neighbor said he would do. It is important to note that installation of erosion control best management practices (BMPs) will not completeIy eliminate sediment transport from your neighbor's property. Erosion control BMPs are intended to minimize the impact of exposing bare soil by preventing soil from getting suspended in water or removing suspended soil from water. Once sediment is suspended in water, short of using chemicals, erosion control BMPs will not remove very fine sediment from the water. Although these BMPs are not perfect, they are consistent with Washington State's requirements to use all known, available, and reasonable methods of prevention, control, and treatment of stormwater. These BMPs also meet the Clean Water Act's requirement of stormwater controls to reduce the discharge of pollutants to the maximum extent practicable. Thank you for taking an interest in the environment. If you have additional concerns regarding this issue, feel free to contact Brian Sleight, SWS Section Senior Engineer, at (206) 296-8025. � Daryl Grigsby, i�l:ul:��;�r ; Water and Land Resources Division Department of Natural Resources and Parks i,l h , ' � 3/Z l/2003 �- . i TASK 5 MITIGATION OF EXISTING AND POTENTIAL PROBLEMS .; . - - TASK 5 MITIGATION OF EXISTING AND POTENTIAL PROBLEMS I The area downstream of the proposed project known as Stoneridge (Stoneridge) possibly dces exhibit potential problems based on the drainage complaints. Since the City of Renton has indicated that Level 3 F1ow Control and Basic Water Quality are the required means of detaining runoff and treating the runoff, which is more than the Flow Control Applications Map in the 1998 King County Surface Water Design Manual requires, this project assumes those are adequate for this site. By utilizing Level 3 F1ow Control this project should not aggravate or create a problem as specified in the problem-specific mitigation requirements set forth in Section 1.2.2.1 of the 1998 King County Surface Water Design Manual. A I Level 2 or a Level 3 off-site analysis should not be required for this project site. In addition, the project , site is not flat nor is the downstream drainage course flat and the site does not contribute more than i 15 percent of the total peak flow drainage downstream from the site. I 1�4.007.doc[JP]ltep] '� i i 4.0 FLOW CONTROL AND WATER QUALITY FACILITY ANALYSIS AND DESIGN � 4.0 FLOW CONTROL AND WATER QUALITY FACILITY ANALYSIS AND DESIGN A. Existing Site Hydrology The pre-developed and post-developed basin areas match each other in size. Please see the following table for a list of assumptions and parameters used in sizing the pre- developed conditions hydrographs for this project. EXISTING CONDITIONS TABLE On-Site(NW Vault Basin,Lots 1-7.Plus 2 Upstream Lots and Mt.Baker Avenue): Existing impervious = 0.12 Acre (existing houses) Till grass = 0.50 Acre Till forest = 1.65 Acres Total on-site = 2.27 Acres On-Site(NE Vault Basin,Lots 8 and 9.and 148th Ave.S.E.Frontage): Existing impervious = (0.04 x 0.5)=0.02 Acre(gravel road) Existing impervious = 0.07 Acre(148th Avenue ACP) Till grass = 0.32 Acre Till forest = 0.20 Acre Total on-site = 0.61 Acre b Total existing area = 2.88 Acres of which there is: till forest = 1.85 Acres till grass = 0.82 Acre impervious = 0.21 Acre 2.88 Acres ; 11444.006.doc[JPJ/tep] B. Developed Site Hydrology The existing site as well as the developed site occurs in Aldenvood type soils that are a till type soil. The proposal for this development is to construct a Level 3 Flow Control detention vault above a basic water quality wet vault in the northwest portion of the site and a Level 3 Flow Control weddetention vault in the northeast portion of the site. Please see the following table for the assumptions and parameters used in determining basin areas contributing runoff to the weUdetention vaults. DEVELOPED CONDITIONS TABLE On-Site(NW Vault Basin,Lots 1-7,Plus 2 Upstream Lots and Mt. Baker Avenue): Impervious: 91ots x 4,000 SF/lot = 0.83 Acre Cul-de-sac and sidewalks = 0.38 Acre Total impervious = 1.21 Acres Till grass = 1.06 Acres Total improvements = 2.27 Acres On-Site(NE Vault Basin,Lots 8 and 9.and 148th Avenue S.E.Fronta�e): Impervious: 2 lots x 4,000 SF/lot = 0.18 Acre � 148th Avenue S.E. frontage and driveway = 0.17 Acre Total impervious = 0.35 Acre Till grass = 0.26 Acre Total improvements = 0.61 Acre TOTAL DEVELOPED AREA: Impervious = 1.21 +0.35 = 1.56 Acres Till grass = 1.32 Acres TOTAL = 2.88 Acres 11444.006.doc[]PJ/tepl C. Performance Standards As mentioned previously the flow control performance standard utilized for this development is Level 3 Flow Control due to downstream problems that are well documented at King County. The water quality performance standard is to provide Basic Water Quality as dictated by the City of Renton and King County, which this project proposes to do in the form of wet vaults. D. F7ow Control System Please see the following pages for the calculations utilized in sizing the flow control systems for this project as well as a copy of the control structures. E. Water Quality System This section will be prepared in accordance with the 1998 King County Surface Water Design Manual and follows the KCRTS calculations. ll�.006.doc(lPUtep] ��i i y� �� KCRTS Command `,��L� ------------ �) l� � , CREATE a new Time Series ------------------------ / Production of Runoff Time Series ��✓��+ � f- � (1� Project Location : Landsburg Computing Series : 11444pre.tsf ��El�'1�"{� � Regional Scale Factor : 0.90 Data Type : Reduced � — , � �' �,� Creating Hourly Time Series File Loading Time Series File:C: \KC_SWDM\KC_DATA\LATF60R.rnf . Till Forest 1.65 acres Loading Time Series File:C: \KC_SWDM\KC_DATA\LATG60R.rnf . Till Grass 0.50 acres Loading Time Series File:C: \KC_SWDM\KC_DATA\LAEI60R.rnf . Impervious 0.12 acres � -------------- Total Area : 2.27 acres Peak Discharge: 0.374 CFS at 7:00 on Jan 9 in Year 8 Storing Time Series File:11444pre.tsf . Time Series Computed KCRTS Command Enter the Analysis TOOLS t•iodule ------------------------------- Analysis Tools Command ---------------------- Compute PEAKS and Flow Frequencies ---------------------------------- Loading Stage/Discharge curve:11444pre.tsf . Flow Frequency Analysis Time Series File:11444pre.tsf Project Location:Landsburg Frequencies & Peaks saved to File: 11444pre.pks . Analysis Tools Command ---------------------- RETURN to Previous Menu KCRTS Command CREATE a new Time Series ------------------------ Production of Runoff Time Series Project Location : Landsburg Computing Series : 11444dev.tsf Regional Scale Factor : 0.90 Data Type : Reduced Creating Hourly Time Series File Loading Time Series File:C: \KC_SWDM\KC_DATA\LATG60R.rnf . Till Grass 1.06 acres Loading Time Series File:C: \KC_SWDM\KC_DATA\LAEI6�R.rnf . Impervious 1.21 acres -------------- Total Area : 2.27 acres Peak Discharge: 0.912 CFS at 7:00 on Jan 9 in Year 8 Storing Time Series File: i1444dev. tsf . Time Series Computed KCRTS Command I Enter the Analysis TOOLS hiodule I! ------------------------------ I Analysis Tools Command ---------------------- Compute PEAKS and Flow Frequencies ---------------------------------- Loading Stage/Discharge curve:11444dev.tsf . Flow Frequency Analysis -------------------------------------------------------- j Time Series File:11444dev.tsf I Project Location:Landsburg , Frequencies & Peaks saved to File:11444dev.pks . � Analysis Tools Command ---------------------- Compute Flow DURATION and Exceedence ------------------------------------ Loading Time Series File:11444pre.tsf . ' Computing Flow Durations Durations & Exceedence Probabilities to File:11444target.dur . Analysis Tools Command RETURN to Previous Menu KCRTS Command Size a Retention/Detention FACILITY --------------------------------- Edit Facility Loading Time Series File:11444dev.tsf . Time Series Found in Memory:11444dev.tsf . Saving Retention%Detention Facility File:114441evel3 .rdf . Starting Documentation File:C: /KC_SWDM/KC_DATA/EXAMPLE/KCRTS\114441eve13 .doc Time Series Found in Memory:11444dev.tsf . Edit Complete Retention;'Detention Facility Design ----------------------------------- Saving Retention/Detention Facility File:114441evel3.rdf . Starting Documentation File:C:iKC_SWDM/KC_DATA/EXAMPLE/KCRTS\114441eve13.doc Time Series Found in Memory:11444dev.tsf . RetentioniDetention Facility Design Flow Frequency Analysis Time Series File:11444pre.tsf Project Location:Landsburg ---Annual Peak Flow Rates--- -----Flow Frequency Analysis------- Flow Rate Rank Time of Peak - - Peaks - - Rank Return Prob (CFS) (CFS) Period 0.218 2 2/09/O1 14:00 0.374 1 100.00 0.990 0.062 8 1/05/02 16:00 0.218 2 25.00 0.960 0.152 4 2/28/03 16:00 0.209 3 10.00 0.900 0.094 7 8/26/04 1:00 0.152 4 5.00 0.800 0.138 5 1/OS/05 10:00 0.138 5 3.00 0.667 0.110 6 1/18/06 21:00 0.110 6 2.00 0.500 0.209 3 11/21/06 9:00 0.094 7 1.30 0.231 0.374 1 1/09/08 7:00 0.062 8 1.10 0.091 Computed Peaks 0.322 50.00 0.980 I I � I � - Flow Frequency Analysis Time Series File:11444dev.tsf Project Location:Landsburg ---Annual Peak Flow Rates--- -----Flow Frequency Analysis------- Flow Rate Rank Time of Peak - - Peaks - - Rank Return Prob (CFS) (CFS) Period 0.496 4 2/09/O1 2:00 0.912 1 100.00 0.990 0.286 8 12/03/01 17:00 0.599 2 25.00 0.960 0.476 6 9/10/03 15:00 0.562 3 10.00 0.900 , 0.562 3 8/26/04 1:00 0.496 4 5.00 0.800 ' 0.462 7 10/28/04 18:00 0.478 5 3 .00 0.667 0.478 5 10/22/05 17:00 0.476 6 2 .00 0.500 0.599 2 11/21/06 9:00 0.462 7 1.30 0.231 ' 0.912 1 1/09/08 7:00 0.286 8 1.10 0.091 ' Computed Peaks 0.807 50.00 0.980 Flow Fre enc Anal sis II �N Y Y Time Series File:11444rdout.tsf ' Project Location:Landsburg I ---Annual Peak Flow Rates--- ----Flow Frequency Analysis------- , Flow Rate Rank Time of Peak - - Peaks - - Rank Return Prob (CFS) (CFS) (ft) Period 0.195 2 2/09/O1 20:00 0.369 6.45 1 100.00 0.990 0.039 8 11/05/O1 3:00 0.195 5.35 2 25.00 0.960 0.096 5 3/O1/03 7:00 0.138 5.22 3 10.00 0.900 0.045 7 8/26/04 6:00 0.097 3 .48 4 5.00 0.800 0.097 4 1/05/05 16:00 0.096 3 .42 5 3.00 0.667 0.066 6 1/19/06 2:00 0.066 2 .68 6 2 .00 0.500 0.138 3 11/24/06 8:00 0.045 1.85 7 1.30 0.231 ', 0.369 1 1/09/08 12 :00 0.039 1.35 8 1.10 0.091 ', Computed Peaks 0.311 5.93 50. 00 0.980 '� Retention/Detention Facility Type of Facility: Detention Vault Facility Length: 116.00 ft Facility Width: 40.00 ft Facility Area: 4640. sq. ft Effective Storage Depth: 6.50 ft Stage 0 Elevation: 373 .50 ft Storage Volume: 30160. cu. ft Riser Head: 6.50 ft Riser Diameter: 12.00 inches Number of orifices: 3 Full Head Pipe Orifice # Height Diameter Discharge Diameter (ft) (in) (CFS) (in) 1 0.00 1.11 0.085 2 2.60 1.18 0.075 4.0 3 5.20 2.63 0.214 6.0 Top Notch Weir: None Outflow Rating Curve: None Stage Elevation Storage Discharge Percolation (ft} (ft) (cu. ft) (ac-ft) (cfs) (cfs) 0. 00 373.50 0. 0.000 0.000 0.00 0. 01 373.51 46. 0.001 0.004 0.00 0. 02 373.52 93. 0.002 0.005 0.00 0. 03 373 .53 139. 0.003 0.006 0.00 0. 05 373 .55 232. 0.005 �.007 0.00 0.06 373 .56 278. 0.006 O.Q08 0.00 0.07 373.57 325. 0.007 0.009 0.00 0.08 373.58 371. 0.009 0.009 0.00 0.09 373 .59 418. 0.010 0.010 0.00 0.10 373 .60 464. 0.011 0.011 0.00 0.23 373.73 1067. 0.024 0.016 0.00 0.36 373.86 167�. 0.038 0.020 0.00 0.49 373.99 2274. 0.052 0.023 O.OQ 0.61 374.11 2830. 0.065 0.026 0.00 0.74 374.24 3434. 0.079 0.029 0 .00 0.87 374.37 4037. 0.093 0.031 0 .00 1.00 374.50 4640. 0.107 0.033 0 .00 1.12 374.62 5197. 0.119 0.035 0.00 1.25 374.75 5800. 0.133 0.037 0.00 1.38 374.88 6403. 0.147 0.039 0.00 1.51 375.01 7006. 0.161 0.041 0.00 1.63 375.13 7563. 0.174 0.043 0.00 1.76 375.26 8166. 0.18? 0.044 0.00 1. 89 375.39 8770. 0.201 0.046 0.00 2.02 375.52 9373. 0.215 0.047 0.00 2.14 375.64 9930. 0.228 0.049 0.00 2.27 375.77 10533. 0.242 0.050 0.00 2.40 375.90 11136. 0.256 0.052 0 .00 2.53 376.03 11739. 0 .269 0.053 0.00 - 2.60 376.10 12064. 0.277 0.054 0 .00 2 . 61 376 .11 12110. 0.278 0.054 0.00 2.62 376.12 12157. 0_279 0.055 0. 00 2 .64 376.14 12250. 0.281 0.057 0. 00 2.65 376.15 12296. 0.282 0.059 0.00 2.66 376.16 12342. 0.283 0.062 0.00 2.67 376.17 12389. 0.284 0.065 0.00 2.69 376.19 12482. 0.287 0.066 0.00 2.70 376.20 12528. d.288 0.067 0.00 2.83 376.33 13131. 0.301 0.074 0.00 2.95 376.45 13688. 0.314 0.080 0.00 3 .08 376. 58 14291. 0.328 0.085 0.00 3 .21 376.71 14894. 0.342 0.089 0.00 3 .34 376.84 15498. 0.356 Q.093 0.00 3.46 376.96 16054. 0.369 0.097 0. 00 I 3 . 59 377.09 16658. 0.382 0.101 0.00 �, 3 .72 377.22 17261. 0.396 0.104 0.00 ', 3 . 85 377.35 17864. 0.410 0.108 0. 00 I 3 .97 377.47 18421. 0.423 0.111 0.00 �I 4 .10 377.60 19024. 0.437 0.114 0.00 ', 4 .23 377.73 19627. 0.451 0.117 0.00 4 .36 377 .86 20230. �.464 0.120 0.00 4 .48 377.98 20787. 0.477 0.123 0.00 4 . 61 378.11 21390. 0.491 0.125 0.00 4 .74 378.24 21994. 0.505 0.128 0.00 4 .87 378.37 22597. 0.519 0.131 0.00 4 .99 378.49 23154. 0.532 0.133 0.00 5 .12 378.62 23757. 0.545 0 .136 0.00 5 .20 378.70 24128. 0.554 0.137 0.00 I 5 .23 378.73 24267. 0.557 0.139 �.00 ' 5.25 378.75 24360. 0.559 0.145 0.00 I 5.28 378.78 24499. 0.562 0.155 O.QO 5.31 378.81 24638. 0.566 0.167 0.00 I 5.34 378.84 24778. . 0.569 0.183 0.00 5.36 378.86 24870. 0.571 0.202 0.00 5.39 378.89 25010. 0.574 0.223 0.00 5.42 378.92 25149. 0.577 0.229 0.00 5.45 378. 95 25288. 0.581 0.235 0.00 5.57 379.07 25845. 0.593 0.259 0.00 5.70 379.20 26448. 0.607 0.279 0.00 5.83 379.33 27051. 0.621 0.298 0.00 5. 96 379.46 27654. 0.635 0.314 0.00 6. 08 379.58 28211. 0.648 0.330 0.00 6.21 379.71 28814. 0.661 0.344 0.00 6.34 379.84 29418. 0.675 0.358 0:00 6.47 379.97 30021. 0.689 0.371 0.00 6 .50 380.00 30160. 0 .692 0.374 0.00 6 .60 380.10 30624. 0.703 0.692 0.00 6 .70 380.20 31088. 0.714 1.260 0.00 , 6 .80 380.30 31552 . 0.724 2.000 0.00 6 .90 380.40 32016. 0.735 2.800 0.00 7 .00 380.50 32480. 0.746 3 .090 0.00 7 .10 380.60 32944. 0.756 3 .360 0.00 7 .20 380.70 33408. 0.767 3 .600 0.00 7 .30 380.80 33872. 0.778 3 .830 0.00 � 1 .40 380.90 34336. 0.788 4 .040 0.00 7 . 50 381.00 34800. 0.799 4 .240 0.00 7 .60 381.10 35264. 0.810 4.430 0.00 7 .70 381.20 35728. 0 .820 4 . 620 0 . 00 7.80 381.30 36192. 0.831 4.790 0.00 7.90 381.40 36656. 0.842 4.960 0.00 8.00 381.50 37120. 0.852 5.130 0.00 8.10 381.60 37584. 0.863 5.290 O.00� 8.20 381.70 38048. 0.873 5.440 O. CO 8.30 381.80 385I2. 0.884 5.590 O.Ou 8.40 381.90 38976. 0.895 5.740 0.00 Hyd Inflow Outflow Peak Storage Target Calc Stage Elev (Cu-Ft) (Ac-Ft) 1 0.91 0.37 0.37 6.45 379.95 29940. 0.687 2 0.50 ******* 0.20 5.35 378.85 24838. 0.570 3 0.60 ******* 0.14 5.22 378.72 24211. 0.556 4 0.29 ******* 0.10 3.48 376.98 16145. 0.371 5 0.33 ******* 0.10 3.42 376.92 15884. 0.365 6 0.28 ******* 0.07 2.68 376.18 12428. 0.285 7 0.56 ******* 0.05 1 .85 375.35 8598 . 0. 197 8 0.26 ******* 0.04 1.35 374. 85 6264 . 0 . 144 Duration Comparison Anaylsis Base File: 11444pre.tsf New File: 11444rdout.tsf Cutoff Units: Discharge in CFS -----Fraction of Time----- ---------Check of Tolerance Cutoff Base New $Change Probability Base New �Change 0.056 � 0.86E-02 0.59E-02 -31.6 � 0.86E-02 0.056 0.051 -9.3 0.068 � 0.57E-02 0.51E-02 -11.9 � 0.57E-02 0.068 0.057 -16.3 0.081 � 0.37E-02 0.38E-02 2.2 ( 0.37E-02 0.081 0.082 1.1 0.093 � 0.23E-02 0.23E-02 -2 .1 � 0.23E-02 0.093 0.093 -0.6 0.106 � 0.15E-02 0.15E-02 2.2 � 0.15E-02 0.106 0.109 2.6 0.119 0.11E-02 0.11E-02 -I.5 0.11E-02 0.119 0.118 -0.2 � � 0.131 � 0.82E-03 0.44E-03 -46.0 � 0.82E-03 0.131 0.124 -5.1 0.144 � 0.55E-03 0.65E-04 -88.2 � 0.55E-03 0.144 0.128 -10.9 0.156 � 0.39E-03 0.49E-04 -87.5 � 0.39E-03 0.156 0.132 -15.3 0.169 � 0.29E-03 0.49E-04 -83.3 � 0.29E-03 Q.169 0.135 -20.2 0.181 � 0.18E-03 0.16E-04 -90.9 � 0.18E-03 0.181 0.137 -24.7 'i 0.194 � 0.98E-04 0.16E-04 -83 .3 � 0.98E-04 0.194 0.138 -28.7 0.206 � 0.82E-04 O.00E+00 -100.0 � 0.82E-04 0.206 0 . 142 -31 .0 Maximum positive excursion = 0.004 cfs ( 3.6�) occurring at 0.110 cfs on the Base Data:11444pre.tsf and at 0.114 cfs on the New Data:11444rdout.tsf Maximum negative excursion = 0.064 cfs (-31.0�> occurring at 0.206 cfs on the Base Data:11444pre. tsf and at 0. 142 cfs or. the Dlew Data: 11444rdout .tsf Flow Duration from Time Series File:11444pre.tsf Cutoff Count Frequency CDF Exceedence_Probability CFS $ $ $ O.Q55 6Q775 99.111 99.111 0.889 0.889E-02 0.063 118 0.192 99.304 0.696 0. 696E-02 0.070 90 0.147 99.45� 0.550 0.550E-02 0.078 85 0.139 99.589 0.411 0.411E-02 i 0.085 55 0.090 99.679 0.321 0.321E-02 ' 0.093 54 0.088 99.767 0.233 0.233E-02 0.101 33 0.054 99.821 0.179 0.179E-02 0.108 24 0.039 99.860 0.140 0.140E-02 0.116 18 0.029 99.889 0.111 0.111E-02 0.123 9 0.015 99.904 0.096 0.962E-03 0.131 9 0.015 99.918 0.082 0.815E-03 0.139 10 0.016 99.935 0.065 0. 652E-03 0.146 8 0.013 99.948 0.052 0.522E-03 0.154 4 0.007 99.954 0.046 0.457E-03 0.161 8 0.013 99.967 0.033 0.326E-03 0.169 3 0.005 99.972 0.028 0.277E-03 0.177 5 0.008 99.980 0.020 0.196E=03 0.184 1 0.002 99.982 0.018 0.179E-03 0.192 5 0.008 99.990 0.010 0.978E-04 0.199 1 0.002 99.992 0.008 0.815E-04 0.207 1 0.002 99.993 0.007 0.652E-04 ' 0.215 2 0.003 99.997 0.003 0.326E-04 0.222 2 0.003 100.000 0.000 O.O00E+00 0.230 0 0.000 100.000 0.000 O.O00E+00 0.237 0 0.000 100.000 0.000 O.O00E+00 0.245 0 0.000 100.000 0.000 O.O00E+00 0.253 0 0.000 100.000 0.000 O.O00E+00 0.260 0 0.000 100.000 0.000 O.QOOE+00 ' 0.268 0 0.000 100.000 0.000 O.O00E+00 0.275 0 0.000 100.000 0.000 O.O00E+00 0.283 0 0.000 100.000 0.000 O.O00E+00 �I 0.291 0 0.000 100.000 0.000 O. O00E+00 0.298 0 0.000 100.000 0.000 O.O00E+00 0.306 0 0.000 100.000 0.000 O.O00E+00 0.313 0 0.000 100.000 0.000 O.O00E+00 0.321 0 0.000 100.000 0.00a O.O00E+00 r m 'm ies File:11444rdout.tsf I�II Flow Duration f o Ti e Ser , Cutoff Count Frequency CDF Exceedence_Probability i CFS $ $ $ 0.003 32972 53 .770 53.770 46.230 0.462E+00 0.008 6131 9.998 63.769 36.231 0.362E+00 0.014 6305 10.282 74.051 25.949 0.259E+00 0.019 5044 8.226 82.277 17.723 0.177E+00 0.025 4041 6.590 88.867 11.133 0.111E+00 0.030 2794 4.556 93.423 6.577 0.658E-01 0.036 1548 2.524 95.947 4.053 0.405E-01 0.041 793 1.293 97.241 2 .759 0.276E-01 0.046 657 1.071 98.312 1.688 0.169E-01 0.052 492 0.802 99.114 0.886 0.886E-02 0.057 150 0.245 99.359 0.641 0.641E-02 0.063 21 0.034 99.393 0.607 0.607E-02 0.068 30 0.049 99.442 0.558 0.558E-02 0.074 51 0.083 99.525 0.475 0.475E-02 0.079 46 0.075 99.600 0.400 0.400E-02 0.085 46 0.075 99.675 0.325 0.325E-02 0.090 40 0.065 99.741 0.259 0.259E-02 0.096 42 0.068 99.809 0.191 0.191E-02 0.101 13 0.021 99.830 0.170 0.170E-02 0.107 10 0.016 99.847 0.153 0. 153E-02 0.112 12 0.020 99.866 0.134 0. 134E-02 0.117 13 0.021 99.887 0.113 0.113E-02 0 .123 11 0.018 99.905 0.095 0.946E-03 0.128 25 0.041 99.946 0.054 0.538E-03 0 .134 14 0.023 99.969 0.031 0.310E-03 0.139 14 0.023 99.992 0.008 0.815E-04 0.145 1 0.002 99.993 0.007 �.652E-04 0.150 0 0.000 99.993 0.007 0.652E-04 0.156 1 0.002 99.995 0.005 0.489E-04 'i 0.161 0 0.000 99.995 0.005 0.489E-04 ' 0.167 0 0.000 99.995 0. 005 0.489E-04 ', 0.172 0 0.000 99.995 0.005 0.489E-04 0.178 2 Q.003 99.998 0.002 0.163E-04 0.183 0 0.000 99.998 0.002 0 .163E-04 0. 189 0 0.000 99.998 0.002 0.163E-04 0.194 0 0.000 99.998 0.002 0.163E-04 ' Duration Comparison Anaylsis Base File: 11444pre.tsf New File: 11444rdout.tsf Cutoff Units: Discharge in CFS -----Fraction of Time----- ---------Check of Tolerance------- Cutoff Base New �Change Probability Base New �Change 0.056 � 0.86E-02 0.59E-02 -31.6 � 0.86E-02 0.056 0.051 -9.3 0.068 � 0.57E-02 0.51E-02 -11.9 � 0.57E-02 0.068 0.057 -16.3 0.081 � 0.37E-02 0.38E-02 2 .2 � 0.37E-02 0.081 0.082 1.1 0.093 � 0.23E-02 0.23E-02 -2.1 � 0.23E-02 0.093 0.093 -0.6 0.106 � 0.15E-02 0.15E-02 2.2 � 0.15E-02 0.106 0.109 2 .6 0.119 � 0.11E-02 0.11E-02 -1.5 � 0.11E-02 0.119 0.118 -0.2 0.131 � 0.82E-03 0.44E-03 -46.0 � 0.82E-03 0.131 0.124 -5.1 0.144 � 0.55E-03 0.65E-04 -88.2 � 0.55E-03 0.144 0.128 -10.9 0.156 � 0.39E-03 0.49E-04 -87.5 ( 0.39E-03 0.156 0.132 -15 .3 0.169 � 0.29E-03 0.49E-04 -83 .3 � 0.29E-03 0.169 0.135 -20.2 0.181 � 0.18E-03 0.16E-04 -90.9 � 0.18E-03 0.181 0.137 -24.7 0.194 k 0.98E-04 0.16E-04 -83 .3 � 0.98E-04 0.194 0.138 -28.7 0.206 � 0.82E-04 O.00E+00 -100.0 � 0.82E-04 0.206 0.142 -31.0 Maximum positive excursion = 0.004 cfs ( 3 .6�) occurring at 0.110 cfs on the Base Data:11444pre.tsf and at 0.114 cfs on the New Data:11444rdout.tsf Maximum negative excursion = 0.064 cfs {-31.0�) accurring at 0.206 cfs on the Base Data:11444pre.tsf and at 0 .142 cfs on the New Data:11444rdout.tsf � I, ��f��V a 'J'� � ''', .� ;��:y. , KCRTS Command ------------- L / J J L� V 1�✓i �� CREATE a new Time Series Production of Runoff Time Series L��f � �i�� C�n�f Project Location : Landsburg Computing Series : 11444vaultpre.tsf -� �egional Scale Factor : 0.90 � ✓��—�5 Data Type : Reduced Creating Hourly Time Series File Loading Time Series File:C:\KC_SWDM\KC_DATA\LATF60R.rnf . Till Forest 0.20 acres Loading Time Series File:C:\KC_SWDM\KC_DATA\LATG60R.rnf . Till Grass 0.32 acres , Loading Time Series File:C: \KC_SWDM\KC_DATA\LAEI60R.rnf . I Impervious 0.09 acres Total Area : 0.61 acres Peak Discharge: 0 .161 CFS at 7:00 on Jan 9 in Year 8 Storing Time Series File:11444vaultpre.tsf . Time Series Computed KCRTS Command Enter the Analysis TOOLS Module ------------------------------- Analysis Tools Command ---------------------- Compute PEAKS and Flow Frequencies ---------------------------------- Loading Stage/Discharge curve:11444vaultpre.tsf . ' Flow Frequency Analysis ', ------------------------------------------------------ Time Series File:11444vaultpre.tsf Project Location:Landsburg Frequencies & Peaks saved to File:11444vaultpre.pks . Analysis Tools Command ---------------------- RETURN to Previous Menu I KCRTS Command CREATE a new Time Series ---------------------- Production of Runoff Time Series Project Location : Landsburg ' Computing Series : 11444vaultdev.tsf I Regional Scale Factor : 0.90 Dat.a Type : Reduced Creating Hourly Time Series File Loading Time Series File:C: \KC_SWDP+I\KC_DATA\LATG60R.rnf . Till Grass 0.26 acres Loading Time Series File:C: \KC_SWDM\KC_DATA\LAEI60R.rnf . Impervious 0.35 acres -------------- Total Area : 0.61 acres Peak Discharge: 0.249 CFS at 7:00 on Jan 9 in Year 8 Storing Time Series File:11444vaultdev.tsf . Time Series Computed KCRTS Command Enter the Analysis TOOLS Module ------------------------------- Analysis Tools Command ---------------------- Compute PEAKS and Flow Frequencies ---------------------------------- Loading Stage/Discharge curve:11444vaultdev.tsf . Flow Frequency Analysis Time Series File:11444vaultdev.tsf Project Location:Landsburg Frequencies & Peaks saved to File: 11444vaultdev.pks . Analysis Tools Command ---------------------- Compute Flow DURATION and Exceedence ------------------------------------ Loading Time Series File:11444vaultpre.tsf . Computing Flow Durations Durations & Exceedence Probabilities to File:11444vaulttarget.dur . Analysis Tools Command -------------------- RETURN to Previous Menu ----------------------- KCRTS Command Size a Retention/Detention FACILITY ----------------------------------- Edit Facility Loading Time Series File:11444vaultdev.tsf . Time Series Found in Memory:11444vaultdev.tsf . Saving Retention/Detention Facility File:11444vaultlevel3 .rdf . Starting Documentation File:C: /KC_SWDM/KC_DATA/EXAMPLE/KCRTS\11444vaultlevel3 .d Time Series Found in Memory:11444vaultdev.tsf . Edit Complete Retention/Detention Facility Design ----------------------------------- Saving Retention/Detention Facility File:11444vaultlevel3 .rdf . Starting Documentation File:C:/KC_SWDM/KC_DATA/EXAMPLE/KCRTS\11444vaultlevel3 .d Time Series Found in Memor�-:11444vaultde�.-. tsf . Retention/Detention Facility Design ' Flow Frequency Analysis Time Series File:11444vaultpre.tsf Project Location:Landsburg ---Annual Peak Flow Rates--- -----Flow Frequency Analysis------- Flow Rate Rank Time of Peak - - Peaks - - Rank Return Prob (CFS) (CFS} Period 0.084 3 2/09/O1 2:00 0.162 1 100.00 0.990 , 0.032 8 12/03/O1 17:00 0.096 2 25. 00 0.960 ' 0.054 5 2/28/03 16:00 0.084 3 10.00 0.900 0.065 4 8/26/04 1:00 0.065 4 5.00 0.800 0.053 6 10/28/04 18:00 0.054 5 3.00 0.667 0.053 7 10/22/05 17:00 0.053 6 2 .00 0 .500 0.096 2 11/21/06 9:00 0.053 7 1.30 0 .231 0.162 1 1/09/08 7:00 0.032 8 1.10 0 .091 Computed Peaks 0 .140 50.00 0.980 ,� Flow Frequency Analysis Time Series File:11444vaultdev.tsf Project Location:Landsburg ---Annual Peak Flow Rates--- -----Flow Frequency Analysis------- Flow Rate Rank Time of Peak - - Peaks - - Rank Return Prob (CFS) (CFS) Period 0.137 4 2/09/01 2:00 0.249 1 100. 00 0.990 0.081 8 12/03/Ol 17:00 0.165 2 25.00 0.960 0.136 5 9/10/03 15:00 0.158 3 10.00 0.900 0.158 3 8/26/04 1:00 0.137 4 5.00 0.800 0.130 7 10/28/04 18:00 0.136 5 3.00 0.667 0.135 6 10/22/Q5 17:00 0.135 6 2.00 0.500 0.165 2 11/21/06 9:00 0.130 7 1.30 0.231 0.249 1 1/09/08 7:00 0.081 8 1.10 0.091 Computed Peaks 0.221 50. 00 0 .980 Flow Frequency Analysis Time Series File:11444vaultrdout.tsf Project Location:Landsburg ---Annual Peak Flow Rates-- -----Flow Frequency Analysis—--- Flow Rate Rank Time of Peak - - Peaks - - Rank Return Prob (CFS} (CFS) (ft) Period 0.081 2 2/09/O1 19:00 0.158 6. 97 1 100.00 0 .99G 0.018 8 11/04/O1 8:00 0.081 6.11 2 25.00 0.960 0.038 5 2/28/03 18:00 0.053 5.58 3 10.00 0.900 0.022 7 8/24/04 0:00 0.041 3.90 4 5.00 0.800 0.041 4 1/05/05 12:00 0.038 3.67 5 3.00 0. 667 0.032 6 1/19/06 0:00 0.032 3 .13 6 2 .00 0.500 0.053 3 11/24/06 8:00 0.022 1.84 7 1.30 0.231 0.158 1 1/09/08 9:00 0.018 1.30 8 1.10 0.091 Computed Peaks 0 . 132 6. 55 50 .00 0 .98G Retenticr.!Detention Facility Type of Facility: Detention Vault Facility Length: 50.00 ft Facility Width: 14.00 ft Facility Area: 700. sq. zt Effective Storage Depth: 7.00 ft Stage 0 Elevation: 385.50 ft Storage Volume: 4900. cu. ft Riser Head: 7.00 ft Riser Diameter: 12 .00 inches Number of orifices: 3 Full Head Pipe Orifice # Height Diameter Discharge Diameter (ft} (in) (CFS) (in) 1 0.00 0.76 0.042 2 3.00 0.61 0.020 4.0 3 6.00 1.90 0.098 4.0 Top Notch Weir: None Outflow Rating Curve: None Stage Elevation Storage Discharge Percolation (ft) (ft) (cu. ft) (ac-ft) (cfs) (cfs) 0.00 385.50 0. 0.000 0.�00 0 .00 0.01 385.51 7. 0.000 0.001 0.00 0 .02 385.52 14. 0.000 0.002 0.00 0.03 385.53 21. 0.000 0.003 0. 00 0.04 385.54 28. 0.001 0.003 0.00 0.05 385.55 35. 0.001 0.003 0. 00 0.06 385.56 42. 0.001 0.004 0. 00 0.20 385.70 140. 0.003 0.007 0. 00 0.34 385.84 238. 0.005 0.009 0.00 0.48 385.98 336. 0.008 0.011 0.00 0.61 386.11 427. 0.010 0.012 0.00 0.75 386.25 525. 0.012 0.014 0.00 0.89 386.39 623. 0.014 0.015 0 .00 1 .02 386 .52 714. 0.016 0.016 0 . 00 1 .16 386.66 812. 0.019 0.017 0 . 00 1 .30 386.80 910. 0.021 0.018 0 .00 1 .44 386.94 1008 . 0.023 0.019 0.00 1.57 387 .07 1099. 0.025 0.020 0.00 1.71 387.21 1197 . 0.027 0.021 0.00 1.85 387.35 1295. 0.030 0.022 0.00 1 .99 387.49 1393. �.032 0.022 0.00 2 .12 387 .62 1484. 0.034 0.023 0.00 2 .26 387 .76 1582. �.036 0.024 0.00 2 .40 387 .90 1680. 0.039 0.025 0.00 2.53 388.03 1771. 0 .041 0.025 0. 00 2 . 67 388.17 1869. 0.043 0.026 0.00 2 .81 388.31 1967. 0 .045 0.027 0.00 2.95 388.45 2065. 0 .047 0.027 0. 00 3 .00 388.50 210Q. 0.048 0.027 0. 00 3 .01 388.51 2107. 0.048 0.028 0. 00 3 . 02 388 .52 2114. 0.049 0.028 0 .00 3 .03 388.53 2121. 0.049 0.029 0.00 3.04 388.54 2128. 0.049 0.030 0.00 3 .05 388.55 2135. 0.049 0.030 0.00 3 .06 388.56 2142. 0.049 0.030 0.00 3 .19 388.69 2233. 0.051 0.033 0.00 3.33 388.83 2331. 0.054 0.035 0.00 3.47 388.97 2429. 0.056 0.036 0.00 3 .61 389.11 2527. 0.058 0.038 0.00 3 .74 389.24 2618. 0.060 0.039 0.00 3 .88 389.38 2716. 0.062 0.041 0.00 4.02 389.52 2814. 0.065 0.042 0.00 4 .15 389.65 2905. Q.067 0.043 0.00 4.29 389.79 3003. 0.069 0.044 0.00 I 4.43 389.93 3101. 0.071 0.045 0.00 4.57 390.07 3199. 0.073 0.046 0.00 4.70 390.20 3290. 0.076 0.047 Q.00 4.84 390.34 3388. 0.078 0.048 0.00 4.98 390.48 3486. 0.080 0.049 0.00 5.12 390.62 3584. 0.082 0.050 0.00 5.25 390.75 3675. 0.084 0.051 0.00 5.39 390.89 3773. 0.087 0.052 0.00 5.53 391.03 3871. 0.089 0.053 0.00 5.66 391.16 3962. 0.091 0.054 0.00 5.80 391.30 4060. 0.093 0.055 0.00 5.94 391.44 4158. 0.095 0.056 0.00 6.00 391.50 4200. 0.096 0.056 0.00 6.02 391.52 4214. 0.097 0.057 0.00 6.04 391.54 4228. 0.097 0.059 0.00 6.06 391.56 4242. �.097 0.063 0.00 6.08 391.58 4256. 0.098 0.069 0.00 6.10 391.60 4270. 0.098 0.075 0. 00 , 6.12 391.62 4284. 0.098 0.083 0. 00 6.14 391.64 4298. 0.099 0.092 0. 00 6.16 391.66 4312. 0.099 0.096 0.00 6.18 391 .68 4326. 0.099 0. 099 0.00 6.32 391.82 4424. 0.102 0.113 0.00 6.45 391.95 4515. 0.104 0.125 0.00 6.59 392.09 4613. 0.106 0.135 0.00 6.73 392.23 4711. 0.108 0.144 0.00 6.86 392.36 4802. 0.110 0.152 0.00 7.00 392.50 4900. 0.112 0.160 0.00 7.10 392.60 4970. 0.114 0.473 0. 00 7 .20 392.70 5040. 0.116 1.040 0. 00 7.30 392.80 5110. 0.117 1.780 0.00 7.40 392.90 5180. 0.119 2.570 0_00 7.50 393 .00 5250. 0.121 2 .860 0.00 7.60 393.10 5320. 0.122 3 .120 0.00 7.70 393.20 5390. 0.124 3 .360 0.00 7.80 393.30 5460. 0.125 3.580 0 .00 7.90 393.40 5530. 0.127 3.790 0.00 8.00 393.50 5600. 0.129 3.990 0.00 8.10 393.60 5670. 0.130 4.180 0.00 8.20 393.70 5740. 0.132 4.360 0.00 8.30 393 .80 5810. 0.133 4.530 0.00 8.40 393 .90 5880. 0.135 4.700 0 .00 8. 50 394.00 5950. 0.137 4.860 0 . 00 8. 60 394 . 10 6020. 0. 138 5 .010 0 . 00 � 8.70 394.20 6090. 0.140 5.160 0.00 8.80 394.30 6160. 0.141 5.310 0.00 Hyd Inflow Outflow Peak Storage Target Calc Stage Elev (Cu-Ft? (Ac-Ft) 1 0.25 0.16 0.16 6.97 392 .47 4877 . 0.112 2 0.14 ******* 0.08 6.11 391.61 4280. 0.098 3 0.17 ******* 0.05 5.58 391.08 3906. 0.090 4 0.08 ******* 0.04 3.90 389.40 2728. 0.063 5 0.09 ******* 0.04 3.67 389.17 2568. 0.059 6 0.08 ******* 0.03 3.13 388 .63 2189. 0.050 7 0.16 ******* 0.02 1.84 387 .34 1289. 0.030 8 0.07 ******* 0.02 1.30 386.80 908. 0.021 ---------------------------------- Route Time Series through Facility Inflow Time Series File:11444vaultdev.tsf Outflow Time Series File:11444vaultrdout Inflow/Outflow Analysis Peak Inflow Discharge: 0.249 CFS at 7:00 on Jan 9 in Year 8 Peak Outflow Discharge: 0.158 CFS at 9:00 on Jan 9 in Year 8 Peak Reservoir Stage: 6.97 Ft Peak Reservoir Elev: 392.47 Ft Peak Reservoir Storage: 4877. Cu-Ft . 0.112 Ac-Ft Flow Frequency Analysis Time Series File:11444vaultrdout.tsf Project Location:Landsburg , --Annual Peak Flow Rates--- -----Flow Frequency Analy.sis------- ' Flow Rate Rank Time of Peak - - Peaks - - Rank Return Prob (CFS) (CFS) (ft) Period 0.081 2 2/09/O1 19:00 0.158 6.97 1 100.00 0.990 I 0. 018 8 11/04/O1 8:00 0.081 6.11 2 25.00 0.960 i 0.038 5 2/28/03 18:00 0.053 5.58 3 10.00 0. 900 0.022 7 8/24/04 0:00 0.041 3.90 4 5.00 0.800 ' 0.041 4 1/OS/OS 12:00 0.038 3 .67 5 3.00 0.667 0.032 6 1/19/06 0:00 0.032 3 .13 6 2.00 0.500 0.053 3 11/24/06 8:00 0.022 1.84 7 1.30 0.231 0.158 1 1/09/08 9:00 0.018 1.30 8 1.10 0.091 Computed Peaks 0.132 6.55 50.00 0.980 Flow Duration from Time Series File:11444vaultrdout.tsf Cutoff Count Frequency CDF Exceedence_Probability CFS $ $ $ , 0.001 41784 68.141 68.141 31.859 0.319E+00 , 0.003 5773 9.415 77.555 22 .445 0.224E+00 0.006 4085 6.662 84.217 15.783 0.158E+00 0.008 3299 5.380 89.597 10.403 0.104E+00 0.010 2141 3.492 93.089 6.911 0.691E-01 0.012 1640 2.6?4 95.763 4.237 0.424E-01 ' 0.015 807 1.316 97.079 2 .921 0.292E-01 0.017 648 1.057 98.136 1.864 0.186E-01 - 0.019 381 0.621 98.757 1.243 0.124E-01 0.021 205 0.334 99.092 0.908 0.908E-02 __ -� � li I�I 0.024 202 0.329 49.421 0.579 0.579E-02 0.026 152 0.248 99.669 0.331 0.331E-02 0.028 64 0.104 99.773 0.227 0.227E-02 0.030 10 0.016 99.790 0.210 0.210E-02 0.033 19 0.031 99.821 0.179 0.179E-02 0.035 12 0.020 99.840 0.160 0.160E-02 0.037 18 0.029 99.870 0.130 0.130E-02 0.039 16 0.026 99.896 0.104 0.104E-02 I 0.042 12 0.020 94.915 0.085 0.848E-03 � 0.044 6 0.010 99.925 0.075 0.750E-03 0.046 8 0.013 99.938 0.062 0.620E-03 0.048 10 0.016 99.954 0.046 0.457E-03 0.051 9 0.015 99.969 0.031 0.310E-03 0.053 8 0.013 99.982 0.018 0.179E-03 0.055 5 0.008 99.990 0.010 0.978E-04 0.057 3 0.005 99.995 0.005 0.489E-04 0.060 0 0.000 99.995 0.005 0.489E-04 0.062 0 0.000 99.995 0.005 0.489E-04 0.064 1 0.002 99.997 0.003 0.326E-04 0.066 1 0.002 99.998 0.002 0.163E-04 0. 069 0 0.000 99.998 0.002 0.163E-04 0.071 0 0.000 99.998 0.002 0.163E-04 0.073 0 0_000 99.998 0.002 0.163E-04 0.075 0 0.000 99.998 0.002 0.163E-04 0.078 0 0.000 99.998 0.002 0.163E-04 0. 080 0 0.000 99.998 0. 002 0 .163E-04 � Flow Duration from Time Series File:11444vaultpre.tsf Cutoff Count Frequency CDF Exceedence_Probability CFS $ $ $ 0.026 61078 99.605 99.605 0.395 0.395E-02 0.030 73 0.119 99.724 0.276 0.276E-02 0.033 50 0.082 99.806 0.194 0.194E-02 0.036 32 0.052 99.858 0.142 0.142E-02 0.039 17 0.028 99.886 0.114 0.114E-02 0.042 17 0.028 99.914 0.086 0.864E-03 0.046 10 0.016 49.930 0.070 0.701E-03 ' 0.049 8 0.013 99.943 0.057 0.571E-03 0.052 7 0.011 99.954 0.046 0.457E-03 0. 055 10 0.016 99.971 0.024 0.294E-03 0.058 3 0.005 99.976 0.024 0.245E-03 0.062 3 0.005 99.980 0.020 0.196E-03 0. 065 1 0.002 99.982 0.018 0.179E-03 0.068 3 0.005 99.987 0.013 0.130E-03 0.071 3 0.005 99.992 0.008 0.815E-04 0.074 3 0.005 99.997 0.003 0.326E-04 0.078 0 0.000 99.997 0.003 0.326E-04 0.081 0 0.000 99.997 0.003 0.326E-04 0.084 1 0.002 99.998 0.002 0.163E-04 0.087 0 0.000 99.998 0.002 0.163E-04 0.090 0 0.000 99.998 0.002 0.163E-04 0.094 0 0.000 99.998 0.002 0.163E-04 � 0.097 1 0.002 100.000 0.000 O.O00E+00 0.100 0 0.000 100.000 0.000 O.O00E+00 0.103 0 0.000 100.000 0.000 O.O00E+00 0.107 0 0.000 100.000 0.000 O.O00E+00 0.110 0 0.000 100.000 0.000 O.O00E+00 0.113 0 0.000 100.000 0.000 O.O00E+00 0.116 0 0.000 100.000 0.000 O.00OE+QO 0.119 0 0.000 100.000 0.000 O.O00E+00 0.123 0 0.000 100.000 0.000 O.O00E+00 0.126 0 0.000 100.000 0.000 O.O00E+00 0.129 0 0.000 100.OQ0 0.000 O.O00E+00 0.132 0 0.000 100.000 0.000 O.O00E+00 0.135 0 0.000 100.000 0.000 O.O00E+00 0.138 0 0.000 100.000 0.000 O.O00E+00 I Flow Duration from Time Series File:11444vaultrdout.tsf Cutoff Count Frequency CDF Exceedence_Probability CFS g $ � 0.001 41784 68.141 68.141 31.859 0.319E+00 0.003 5773 9.415 77.555 22.445 0.224E+00 0.006 4085 6.662 84.217 15.783 0.158E+00 0.008 3299 5.380 89.597 10.403 0.104E+00 0.010 2141 3.492 93.089 6.911 0.691E-01 I 0.012 1640 2.674 95.763 4.237 0.424E-01 I 0.015 807 1.316 97.079 2 .921 0.292E-01 ! 0.017 648 1.057 98.136 1.864 0.186E-01 �, 0.019 381 0.621 98.757 1.243 0.124E-01 '� 0.021 205 0.334 99.092 0.908 0.908E-02 0.024 202 0.329 99.421 0.579 0.579E-02 0.026 152 0.248 99.669 0.33I 0.331E-02 0.028 64 0.104 99.773 0.227 0.227E-02 0.030 10 0.016 99.790 0.210 0.210E-02 0.033 19 0.031 99.821 0.179 0.179E-02 0.035 12 0.020 99.840 0.160 0.160E-02 0.037 18 0.029 99.870 0.130 0.130E-02 0.039 16 0.026 99.896 0.104 0.104E-02 0.042 12 0.020 99.915 0.085 0.848E-03 0.044 6 0.010 49.925 0.075 0.750E-03 0.046 8 0.013 99.938 0.062 0.620E-03 0.048 10 0.016 99.954 0.046 0.457E-03 0.051 9 0.015 99.969 0.031 0.310E-03 0.053 8 0.013 99.982 0.018 0.179E-03 0.055 5 0.008 99.990 0.010 0.978E-04 ` 0.057 3 0.005 99.995 0.005 0.489E-04 0.060 0 0.000 99.995 0.005 0.489E-04 0.062 0 0.000 99.995 0.005 0.489E-04 0.064 1 0.002 99.997 0.003 0.326E-04 0.066 1 0.002 99.998 0.002 0.163E-04 0.069 0 0.000 99.998 0.002 0.163E-04 0.071 0 0.000 99.998 0.002 0.163E-04 0 .073 0 0.000 99.998 0.002 O.Z63E-04 0.075 0 0.000 99.998 0.002 0.163E-04 0.078 0 0.000 99.998 0.002 0.163E-04 0.080 0 0.000 99.998 0.002 0 .163E-04 Duration Comparison Anaylsis Base File: 11444vaultpre.tsf New File: 11444vaultrdout.tsf Cutoff Units: Discharge in CFS -----Fraction of Time----- --------Check of Tolerance------ Cutoff Base New �Change Probability Base New �Change 0.027 � Q.36E-02 Q.23E-02 -35.0 � 0.36E-02 Q.027 0.026 -7.0 0.033 � 0.19E-02 0.18E-02 -8.4 � 0.19E-02 0.033 0.032 -3 .6 0.038 � 0.12E-02 0.12E-02 -6.6 ( 0.12E-02 0.038 0.038 -1 .5 0.043 � 0.82E-03 0.78E-03 -4.0 � 0.82E-03 0.043 0.042 -2 .3 0.049 � 0.57E-03 0.44E-03 -22.9 ( 0.57E-03 0.049 0.047 -3 .2 0.054 � 0.33E-03 0.11E-03 -65.0 � 0.33E-03 0.054 0.050 -6.6 0.059 � 0 .24E-03 0.49E-04 -80.0 � 0.24E-03 0.059 0.052 -12 .9 0.065 � 0 .18E-03 0.16E-04 -90.9 � 0.18E-03 0.065 0.053 -17.7 0.070 � 0.98E-04 0.16E-04 -83.3 � 0.98E-04 0.070 0.056 -20.7 0.075 � 0.33E-04 0.16E-04 -50.0 � 0.33E-04 0.075 0.064 -14 .6 0.081 � 0.33E-04 0.16E-04 -50.0 � 0.33E-04 0.081 0.064 -20.2 0.086 � 0.16E-04 O.00E+00 -100.0 � 0.16E-04 0.086 0.081 -6.0 0.091 � 0.16E-04 O.00E+00 -100.0 � 0.16E-04 0.091 0.081 -11.5 Maximum positive excursion = 0.000 cfs ( 1.2�) occurring at 0.035 cfs on the Base Data:11444vaultpre.tsf and at 0.035 cfs on the New Data:11444vaultrdout.tsf Maximum negative excursion = 0.019 cfs (-22 .9�) occurring at 0.083 cfs on the Base Data:11444vaultpre.tsf and at 0.064 cfs on the New Data:11444vaultrdout.tsf PROPOSED PLAT OF STONERIDGE II BASIC NW WET VAULT SIZING Vr = [0.9 Ai+0.25 Atg](0.043) _ [(0.9)(121) +(0.25)(1.06)](0.043)(43,560 SF/Acre) = 2,536 CF Vb = (3)(V�) = 7,608 CF Volume Provided = 116 FI' x 20 FT x 4 FI' = 9,280 CF BASIC NE WET VAULT SIZING Vr = [0.9 A; +0.25 A�g](0.043) _ [(0.9)(0.35)+(0.25)(0.26)](0.043)(43,560 SF/Acre) = 712 CF Vb = (3)(VT) =2,136 CF Volume Provided = 52 FT x 14 FI'x 4 FI' = 2,912 CF 11444.006.doc(JPJ/tep] � i �. 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VAULT SEE SHEEI � . 4� . .. . ... . . N.L STORM DRNK4GE CONVEYANCE PIPE SHALL BE ONE OF THE FOt10WINC AS N Z�. � � � � - RIM 3970i � � -- � � �V ��, J ��. } . /. C��OR DETAILS).. ,09 � . E 3940? [E.N}- ..- - .� 5' 15' 15' S' DESIGNATED(UNlE55 OiHEHWISE N07ED): ao Y� I � � ! .. ...: . �. , . . ..`. .: �._..�. . A CANCREfE SfORY SEriEN PIPE SFWt CONFORII TO THE REWRDIEHiS OF � . m ; I � �� ;� : AS1M C 76-85 CV55 N RpNFORCED CANCHETE PIPE. 1 .� ,.'GP�v�-y96� . .. .:.�. ......� ..:.: .�._ .__ . .... � , � .'EDGE OF i'�AVELLEG WAY I � 0.5 & SNOOTH MNL SPIRAL FttB YE[AL PoPE(ALUMNUM.ALUMMIIZED SIEEL. �v� , i i I I� . ft .. . �.. . �.- ... ... .� . ... 20X 2.CS 2.07, _ ` � 20X OR 0.SPl4LT-THEAIED STEft). 16 GAUGE WRH 3/4'X 5/8'ON 12'CENTER. ` ED TE �. � t'�� . . .. .. ._ . . '. _ . � Q ��. ; j ,UTFALL T;, S72EAM - . . .�MLET'0'JAULT �.�� .- _.. �.- .�.: . �� CG RETE ' . . � COhCRETE CURB � C. WIfFi Ml M�CfWlY EFORMED SM06iH IMERqR TO TH�OU REMEMS OFDMSHlO M-294. _ � ' � � -IE=383.68 . . . . IE 384 50(5) .. .. ... ... . � &�LTT� J� ... ... __. ...... .... -_. . : � .� . . . . .... . '�.� SIOEWALK I 1 11 ". -� ('YF 1 / D. DUCT4E HiON PIPE CUSS 50 OR 52 � � - � OLRET FROM VAULT_ .: .;. .. : : . . ` ��1 �-4"COMPACTED DEPTH b ,, i 1==3B6.5G{W) � ' . .. . .. .. . �. ' , � CUlSS �B AS?i1ALT CONCRETE. / E NMIMUY PPE GQVER SiKL BE Z.0 FEEf.(1.0'IP DUCfILE IRON RPE 6 USED) bD��- 4�THICK 0 p ,, . j Z ... ... . �. .�.. -�. .-�. �- � , 6�COMPAfT'D GEPTH CCNCREfE 1 F. RPE W1Y.BE ANf OF THE ABOVE PROMDED: . ��' ��' � ... .. . .. .. - - � - � � . CGNCRETE CUAE-� I CRUSYEG R�CK SURFACING. S�•DEwALK� � i.PoPE JOIN15 MUST BE OF 7HE SAME WTERVIS.AND. . � I� � '� � . .. . ... �.. .. . . . � . � k GU7TER('vF.) tY COra-aC'E� DEPiH SU6GRhDE 2.WkERE A PIPE AIATERIK IS SPEpFlGLLY SHON'N ON THE PUN, - - -�- I� ; � � � � . �`�`5 - " " (COUPh.EC TO 95R MA% DENSTYI T1UT WTfltIAL MUST BE USED. � � I � 4�. �.g �8 ^.8 � :, �m MT.BAKER AVENUE N.E.EXTENSION '^ro ,'O�u �,m �m -ri _ �32'ROADWAY CROSS SECTION lsee rio-e Be�ow> P�`, ; I = �� „a, �,m, ','„ `-:y; �$ <� w : '�' . � ~ �+Ot TO Sf E � � i '�, , � ; v� Date: ; . I ' 80}00 3}�00 32f0� 3:iF00 �� I '�� THI$CRp$5 SECf10N OF FiNiSHED ROMWAY MPLffS ONLY TD SfATONS 1+3J.00 TO By: putr. % yf,21E '�.. i ; ' 1+35.08 FROY CEMFFUHE TO iME EAST.AND SfATpNS 1+37.00 TO 1+56.48 FROY �,T s�s � i ' NORTH BASIN STORM DRAINAGE - PRORLE VIEW CEtlfERI1NE TO TF1E UESf OF MT. BA1(ER AVE N.E.A HOPoZOMK AND�ERfIGL '�'�NAI '-'-� ALIGNMENf.AS riELL/S PERrM1EM FLOMLMIE SPO'i ELEYA7pN5.FMVE BEEN PfiCMDED BY: Date I ' su�[�. '=sc' ro4rzorrrrx- _.. :�Fncn� •isrnnoumc Fouews rn[ aivE a,ur.) ON THIS 91EEf TO F/�CNJTATE 7HE CONSfFtUCi1pN OF THE CUL-DE-S1C PANNG BEYOND � ExPiRES �, _ . I Z TH6E STATIONS ', � � �� I � o � . WEST BASIN WET/DETENTION VAULT DETAILS AND SECTIONS f'�;, � �� ;�� iz WINDSTONE II ` � `:� N A PORTION OF THE SE 1/4 OF SEC.3,T.23, R 5E, WM, �� ,u � � KWG COUNTY, WASHNGTON r-2o� c d F o s ,0 2o t d _ J . d > O t � � — Fx�we a umea oR srers OF�SET SEE NOTE 4,fRM1E � ! V — a�cav�c�v.�.o ua�n'aw+' �jJ Z 4' 36' 36' � ' �l) O � 0 Z� --__-_,� 1 a u 1 Q Q � — :� RQION'1BLE �•'le•w 72'RI ; � � I . .. 6 11U1TER-iICHf ` ` � o�ato+aEv.ro •n ��+c Z vav�noe o�rortioN e on.`•` p a p u�.w.s. I /� 0 � Q SEP/iPoqN)N EI.EV.�380.0 ��.,�_ � Ij ELEV.-3BOA :� �t NOIE: PRONDE A YMN/W 1Y DNMETQi SE Po J _ Q I� . . 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I� l 1� S � 8 i �P �.^--w��kJ»�;: ,_ �: va ,.,, w ,a,eiJ41q,�„ .. , . � e - ._-.�� .�-:��. .- �... �. ..-.-�_'". -- 'n ---�a."�"'�,"�-=�g -_. . .-,- �. .. .. . . > . _., _ �, -� � ._.. .. ..._ ...�. � °�� . . �tJ ��: _ ,,��,�t _, "�_'*"'�� — FOR LOCATION T y�oxa y, Q.c'N'�VS. �gy�5 72ND AVENUE SOUTH �- .a f,7� mP �,t KENT WA 98032 �� (azsjzsi-sz22 KBS DEVELOPMENT CORPOFtAT10N WINDSTONE II �o o` - � (425)251-8782 FAX 12320 N.E.8TH ST., SUITE�F100 10627-148TN AVENUE S.E. � �`�a�f, no'`'�' � s�� ` �,y ciw�eHcu+eeRiNc, uNo rw+r,ir+c, BEI.,LEVUE, WASHINGTON 98005 RENTON, WASHINQTON 98059 -. '�ac¢nc�N" SURVEYINC, ENVIRONMENTAI SERVIGfS v�iN�v.��iooasV�i�+aA.�g��=_z��g�iina�-,.�,,,�.a.a o.�io/r��„e-u�/2'e/:o05 ia�s7 s.ma�. i=au ik��o��a a.,ix�. ,uine-ee.xivaa-t(ina�-�).zu,wa-�m�,niinqn-;.,iia.w-u. � B.C.E. JOB NO. �� 6.0 SPECIAL REPORTS AND STUDIES GEOTECHNICAL ENGINEERING STUDY STONE RIDGE II RESIDENTIAL DEVELOPMENT 148T" AVENUE SOUTHEAST NEAR SR 900 RENTON, WASHINGTON E-11069-1 July 13, 2004 I PREPARED FOR I KBS DEVELOPMENT CORPORATION I '� �. �+_ o� �� 71�y foy � � . l 1��;u-u -�� 7 r�cL� 2ooy--, Raymond A. Coglas, P.E. Manager of Geotechnical Services Earth Consultants, Inc. 1805 - 136th Piace Northeast, Suite 201 Bellevue, Washington 98005 (425) 643-3780 Toll Free 1-888-739-6670 J �� IMPORTANT INFORMATION ABOUT YOUR �� GEOTECHN�CAL ENGINEERING REP4RT i� More construction problems are caused by site subsur- technical engineers who then render an opinion about face tonditions than any other factor. As troublesome as overall subsurface conditions,their likely reaction to subsurface problems can be,their frequency and extent proposed construction activity, and appropriate founda- � have been lessened considerably in recent years,due in tion design. Even under optimal circumstances actual farge measure to programs and publications of ASFE/ conditions may differ from those inferred to exist. a The Association of Engineering Firms Practicing in because no geotechnical engineer, no matter how the Geosciences. qualified,and no subsurface exploration program, no � The fof{owing suggestions and observations are otfered matter how comprehensive,can reveal what is hidden by i� to help you reduce the geotechnical-related delays, earth, rock and time. The actual interface between mate- cost-overruns and other costly headaches that can rials may be far more gradual or abrupt than a report indicates.Actual conditions in areas not sampled may �� occur during a construction project. d'rffer from predictions. Nothing can be done to prevent the 2 unanticipated, but steps can be taken to help rninimize their A GEOTECHNICAL ENGINEERING �mpact. For this reason, most experienced owners retain iheir � REPORT IS BASED ON A UNIQUE SET 9eotechnica[consultants through the construction stage, to iden- �� tify variances,conduct additional tests which may be OF PRO]ECT SPECIF�C FACTORS needed, and to recommend solutions to problems A geotechnical engineering report is based on a subsur- encountered on site. face exploration plan designed to incorporate a unique SUBSURFACE CONDITIONS � set of project-specific factors.These typically inc�ude: the general nature of the structure involved, its size and CAN CHANGE �� configuration; the location of the siructure on the site. and its orientation; physical concomitants such as Subsurface conditions may be modified by constantly- ' access roads, parking lots,and underground utilities, changing natural forces. Because a geotechnical engi- and the level of additional risk which the dient assumed ��ring report is based on conditions which existed at by virtue of limitations imposed upon the exploratory the time of subsurface eaploration,construction decisions � program.To help avoid costly problems,consult the should not be based on a geotechnical engineering report whose geotechnical engineer to determine how any factors Adequacy may have.heen affected by time. Speak with the geo- which change subsequent to the date of the report may technical consultant to learn if additional tests are i� affect its recommendations. advisable beFore consuuction starts. Unless your consulting geotechnical engineer indicates Construction operations at or adjacent to the site and other�xis2,your gevtechnical engineerinq report shoutd not natural events such as floods, earthquakes or ground- � � be used: water fluctuations may also affect subsurface conditions •When the nature of the proposed structure is and,thus, the continuing adequacy of a geoiechnical � changed. for example, if an office building wi11 be report.The geotechnical engineer should be kept :. � erected instead of a parking garage.or if a refriger- apprised of any such events,and should be consulted to ated warehouse will be built instead of an unre- determine if additional tests are necessary. =� frigerated one; •when the size or configuration of the proposed GEOTECHNICAL SERVICES ARE t � structure is altered: PERFORMED FOR SPEGFIC PURPOSES . � •when the location or orientation of the proposed AND PERSONS structure is modified; : � •when there is a change of ownership.or Geotechnical engineers reports are prepared to meet •for application to an adjacent site. the specific needs ot specific individuals. A report pre- ' ; j " Geotechnical engineers cannot accept responsibiJ�ty Jor pro6leins pareci for a co�suit�ng ci�if engineer may not be ade- which rnay develop i f chey are not consuited a(ter jacfors consid- quate for a construction contractor, or even some other j ered in their report's development have chan_qed. consulting civil engineer. Unless indicated otherwise, ; � this report was prepared expressly for the client involved and expressly for purposes indicated by ihe client. Use MOST GEOTECHMCAL '�FINDINGS" by any other persons for any purpose,or by the dien[ ' , ARE PROFESSIONAL ESTIMATES for a different purpose, may result in problems. No indi- I vidua!other t{�an the dient shoutd a�ly this report for its '� Site exploration identifies actual subsurface tonditions iniended purpose withvut Jirst fon/erring with the geotechnical on[y at those points where samples are taken,when engineer. No person should apply this reporf for any purpose they are taken. Data derived through sampling and sub- other ihan that originally contemplated without�irst con/erring ' sequent laboratory testing are extrapolated by geo- with the geotechnical engineer A GFATECHNICAL ENGINEERING der the mistaken impression that simply disclaiming re- REPORT IS SUBJECT TO sponsibility for the accuracy of subsurface information always insulates them from attendant liability.Providing MISINTERPRETATION the best available information to convactors hetps pre- Costly problems can occur when other design profes- vent costly construction probtems and the adversarial sionals develop their plans based on misinterpretations attitudes which aggravate them to disproportionate of a geotechnical engineering report.'Ib help avoid scale. these problems, the geotechnicat engineer should be �AD RESPONSIBILITY retained to work with other appropriate design profes- sionals to explain relevant geotechnical findings and to CLAUSES CL4SELY review the adequacy of their plans and specifications re[ative to geotechnical issues. Because geotechnical engineering is based extensively on judgment and opinion, it is far less exact than other design disciplines. This situation has resulted in wholly unwarranted daims being todged against geotechnical BORING LOGS SHOULD NOT BE consultants_'Ib help prevent this problem,geotechnical engineers have developed model dauses for use in writ- SEPARATED FROM THE ten transmittals.These are not exculpatory dauses ENGINEERING REPORT designed to foist geotechnical engineers liabilities onto someone else. Rather,they are definitive dauses which Final boiing logs are developed by geotechnical engi- identify where geotechnical engineers'responsibilities neers based upon their interpretation of fietd logs begin and end.Their use helps all parties involved rec- (assembled by site personnell and laboratory evaluation ognize their individual responsibilities and take appro- of field samples.Only final boring logs customarily are priate action. Some of these definitive dauses are likely induded in geotechnical engineering reports.These logs to appear in your geotechnical engineering report,and ' should not under any circumstances be redrawn for indusion in you are encouraged to read them dosely. Your geo- architectural or other design drawings, because drafters technical engineer will be pleased to give futl and frank may commit errors or omissions in the transfer process. answers to your questions. Although photographic reproduction eliminates this problem, it does nothing to minimize the possibility of OTHER STEPS YOU CAN TAKE TO contractors misinterpreting the logs during bid prepara- tion.when this occurs,delays,disputes and unantici- REDUCE RISK ; pated costs are the all-too-frequent result. Your consulting geotechnical engineer will be pleased to To minimize the likelihood of boring log misinterpreta- discuss other techniques which can be employed to mit- tion,give contractors ready auess to fhe complete geotechnical igate risk. In addition. ASFE has developed a variety of engineering report prepared or authorized for their use_ materials which may be beneficial.Contact ASFE for a Those who do not provide such access may proceed un- complimentary copy of its publications directory Pubf ished by THE ASSOCIATION OF ENGINEERING FIRMS PRACi1CING IN THE GEOSCIENCES 8811 Coles�ille Road/Suite G 106/Silver Spring, Maryland 20910/(301) 565-2733 a��3�, �arth Gonsultants, lnc. c;ec�echnicalPligineer�,Geotogis�ssF��irorur�axalsc�entists Established 1�75 � c rxisin,aion Testing 8 I�o r w.qso�ns�C'tion ser��ic� July 13, 2004 E-11069-1 KBS Development Corporation 12320 Northeast 8"' Street, Suite 100 Bellevue, Washington 98005 Attention: Mr. Curtis Schuster Dear Mr. Schuster. I I Earth Consultants, Inc. (ECI) is pteased to present this geotechnical engineering study I for ihe proposed Stone Ridge II residential development, Renton, Washington. This study presents the results of our field exploration and geotechnical engineering analyses for the proposed development. Our scope of services for producing this � geotechnical engineering study was outtined in our Work Order E-1 1069-1 , dated July 6, 2004. Based on the results of our study, development of the site as planned is feasible from a geotechnical standpoint. Medium dense to very dense native silty sand with gravel glacial till soil suitable for support of foundations was encountered at our test pit locations. Based on the subsurface conditions observed at the exploration sites, it is our opinion the proposed building structures can be supported on conventional spread and continuous footings bearing on the medium dense to dense competent native soils or granular structural fill. During wet weather conditions, use of the on-site soil as structural fill will be difficult due to the moisture sensitive nature of the soil. If grading is performed during wet weather conditions, use of a free draining granular soil may be necessary. Due to the moisture sensitive nature of the on-site soils, measures to protect exposed subgrade surfaces may be necessary. Recommendations for site preparation, foundations, site drainage, and other geotechnical related issues are presented in this geotechnical engineering study. 1805136th Place N.E.,Suite 201,Bellevue,WA 98005 Other Locations Bellevue(425)643-3780 FAX(425)746-0860 Toll Free(888)739-6670 Fife KBS Development Corporation E-1 1069-1 July 13, 2004 Page 2 We appreciate the opportunity to provide our services during the design phase of the project. If you have questions about the content of this geotechnical engineering study, or if we can be of further assistance, please call. Sincerely, CON ULTANTS, INC. aymond A. Coglas, P.E. Manager of Geotechnical Services RAC/mwp Earth Consultants, Inc. I I TABLE OF CONTENTS E-11069-1 ' PAGE ' INTRODUCTION................................................................................................. 1 � General ........................................................................................................ 1 � Project Description ........................................................................................ 1 SITE CONDITIONS ............................................................................................. 2 Surface ................................................... ................................................. .... 2 � = Subsurface ................................................................. .................................. 2 Groundwater........................................................ ................................ i ......... 3 LaboratoryTesting ........................................................................................ 3 '' DISCUSSION AND RECOMMENDATIONS ............................................................. 4 General ........................................................................................ ' ................ 4 � Site Preparation and General Earthwork............................................................ 5 Slope Fill Placement .................................................................................. 6 '� Foundati�ns.................................................................................................. 7 Compacted Berm and Till Liners ........................................................... ......... 8 Retaining Walls .................................................... ........ 9 ................................. Seismic Design Considerations....................................................................... 1 O Slab-on-Grade Floors..................................................................................... 1 1 SiteDrainage ............................................................................................... 1 1 Excavations and Slopes................................................................................. 12 Utility Trench Backfill.................................................................................... 13 Rockeries and Modular Block Walls................................................................. 14 Pavement Areas........................................................................................... 14 LIMITATIONS ................................................................................................... 15 Additional Services....................................................................................... 16 Earth Consultants, Inc. TABLE OF CONTENTS, Continued E-11069-1 ILLUSTRATlONS Plate 1 Vicinity Map Plate 2 Test Pit Location Plan Plate 3 Typical Footing Subdrain Detail , Pfate 4 Typical Utility Trench Fitl APPENDICES Appendix A Field Exploration Plate A1 Legend Plates A2 through A4 Test Pit Logs Appendix B Laboratory Test Results Plate B1 Grain Size Analyses , ; � �t .� Earth Consultants, Inc. GEOTECHNICAL ENGINEERING STUDY STONE RIDGE II RESIDENTIAL DEVELOPMENT I 148T" AVENUE SOUTHEAST NEAR SR 900 RENTON, WASHINGTON E-11069-1 INTRODUCTION General � This report presents geotechnical recommendations for the proposed Stone Ridge II _ residential development, 148"' Avenue Southeast near State Route (SRy 900, Renton, Washington. The general location of the site is shown on the Vicinity Map (Ptate 1 }. The approximate locations of our test pits and the approximate limits of the property are illustrated on the Test Pit Location Plan, Plate 2. The scope of our services was outlined in our Work Order E-11069-1 , dated Jufy 6, 2004. Our scope of services included a subsurface exploration to characterize soil conditions at the site, and - preparation of this report with geotechnical recommendations for the proposed site development. As part of our geotechnical report, we reviewed the preliminary civil engineering plans, Sheets C1 through C21 , prepared by Barghausen Consulting Engineers, Inc., dated April 6, 2004. Earth Consultants, lnc. (ECI) previously prepared a geotechnical engineering study for the adjacent prvposed Stone Ridge development. The Test Pit Location Plan (Plate 2) illustrates the approximate locations of the Stone Ridge and Stone Ridge II developments, and the approximate layout of the building lots. ' Project Description : We understand the Stone Ridge 11 residential development will include eight to nine residential building lots. We anticipate the building construction will consist of relatively [ightly loaded wood frame construction. Based on experience with similar . projects, anticipated wall loads for the proposed buildings will be in the range of 2 to 3 kips per lineal foot, column loads in the range of 10 to 12 kips, and floor loads of 150 pounds per square foot (psf). The proposed site access road will consist of north-south trending residential road that will provide access to the residences from the adjacent , Stone Ridge development. Based on the existing topography, we anticipate the mass _ grading of the site will be relatively minimal, with most lots and access roads following ' the existing contours as much as possible. Cuts and fills ranging up to approximately eight feet are anticipated throughout the residential building lots and access roadways. Earth Consultants, Inc. GEOTECHNICAL ENGINEERING STUDY KBS Development Corporation E-11069-1 July 13, 2004 Page 2 We understand storm water from the development wili be conveyed to a storm water detention pond located near the northwest corner of the proposed Stone Ridge II , development. If the above project description is incorrect or changes, ECI should be contacted to review the recommendations in this report. SITE CONDITIONS Surface The approximate property limits and proposed lot locations are illustrated on the Test Pit Location Plan (Plate 2}. The subject property is located north of the intersection of 148"' Avenue Southeast and SR 900, Renton, Washington (see Plate 1, Vicinity Map}. The site topography is irregular with moderate topographic relief. The overall topography of the site is characterized by a natural drainage channel that borders the - extreme westerly side of the proposed Stone Ridge II development. Vegetation : consisis primarily of evergreen and deciduous trees with a moderately dense understory of brush and saplings. = Subsurface Three test pits were excavated throughout the proposed Stone Ridge II development. �- Please refer to the Test Pit Logs, Plates A2 through A4, for a description of the � * conditions encountered at the test pit locations. The soils encountered at the exploration sites consisted p�imarily of native silty sand with gravel (Unified Soil Classification SM). Review of the geologic map for southwest King County identifies glacial till (Qvt) deposits throughout the site and surrounding areas. The native soils observed at the test pit locations were generally consistent , with glacial till soil deposits. Underlying the surficial layer of topsoil, medium dense, I ,1 brown silty sand with gravel (SM) soil was encountered to depths of approximately two and one-half feet to four feet below existing grade. Underlying the brown silty _ sand soifs, dense silty sand with gravel glacial till soils were encountered. Earth Consultants, Inc. GEOTECHNICAL ENGINEERING STUDY KBS Development Corporation E-11069-1 ' July 13, 2004 Page 3 � At the time our field expioration was performed (April 26, 2004), the native silty sand ' with gravel soil was in a moist to wet condition, with moisture contents generally in the range of approximately 10 to 20 percent. The native soils are moisture sensitive, and will degrade rapidly if exposed to excessive moisture. Moisture contents of the � soil samples collected at the site are recorded on the test pit logs included in Appendix A of this report. Groundwater , Light groundwater seepage was observed in Test Pit TP-7 located in the adjacent ' proposed Stone Ridge development. In general, the presence of groundwater seepage should be expected in the site excavations. The rate of groundwater seepage could be moderate to heavy at some Iocations. Due to the nature of ihe dense glacial till soils observed at the test pit locations, we do not anticipate the presence of groundwater , seepage will create significant stability problems in site excavations. The use of sumps during construction, however, may be necessary, depending on the rate of ' , groundwater seepage entering the excavation. The contractor should be made aware that groundwater seepage levels and the rate of ' seepage are not static; fluctuations in the level and rates can be expected depending : on the season, amount of rainfall, surface water runoff, and other factors. Generally, the level ancf rate of seepage is higher in the wetter winter months (typically October through May). However, confined zones of groundwater may produce moderate to � heavy groundwater flaws year around. ., Laboratory Testing � The results of laboratory tests performed on speci#ic samples are provided in Appendix �: B, or at the appropriate sample depth on the test pit logs. It is important to note that these test results may not accurately represent the overall in-situ soil conditions. Our geotechnical recommendations are based on our interpretation of these test results. �� ECI cannot be responsible for the interpretation of these data by others. 4} Eanh Consultants, tnc. GEOTECHNICAL ENGINEERING STUDY KBS Development Corporation E-11069-1 July 13, 2004 Page 4 DISCUSSION AND RECOMMENDATIONS = General Based on the subsurface conditions observed at the test pit locations, devetopment of the site is feasible from a geotechnical standpoint. The primary geotechnical _ considerations related to the proposed development include fill placement and compaction, and moisture sensitivity of the on-site soils. Preparation of the access - roadway subgrade is also an important geotechnical consideration. The proposed single-family residences can be supported on conventional spread and continuous footings bearing on the medium dense to dense native silty sand with gravel, or on granular structural fill used to modify existing grades. Based on test pit , data, we anticipate native soils suitable for foundation support will be encountered at approximately two and one-half to three feet below existing grade throughout the site. In our opinion, the foundations can be supported on granular siructural fill in areas where fill is to be placed to achieve foundation subgrade etevation. Recommendations ; for structurat fill placement are provided in the Site Preparation and Genera! Earthwo�k section of this report. j The slab-on-grade for the single-family residences can be supported on the medium dense to dense native soils or on a granular structural fill. Recommendations for slab subgrade preparation are discussed in the Slab-On-Grade Floors section of this report. � � Construction of a storm water detention pond is planned for the northwest portion of the site. Care will need to be taken during excavation to identify and control seepage ` encountered along the cut slopes for the detention pond. Where fill berms are utilized around the pondF compaction of the fill will need to me�t structural fill specifications. Recommendations for pond berm fill and compacted soil liner are discussed in the Compacted Berm and Til!Liner section of this report. : As previously mentioned, due to the moisture sensitive nature of the on-site soils, and the potential for groundwater seepage entering excavations, measures to protect exposed subgrade surfaces will likely be necessary. Earthwork recommendations and r compaction specifications are presented in the Site Preparation and General Earthwo�k section of this report. Earth Consultants, �nc. GEOTECHNICAL ENGINEERING STUDY KBS Development Corporation E-1 1069-1 July 13, 2004 Page 5 This geotechnical engineering study has been prepared tor the exclusive use of KBS Development Corporation and their representatives. This study was prepared for specific application to this project only and in a manner consistent with that levet of � care and skill ordinarily exercised by other members of the profession currently practicing under similar conditions in this area. No other warranty, expressed or implied, is made. We recommend that this geotechnical engineering study, in its I� entirety, be included in the project contract documents for the information of the '� contractor. ' Site Preparation and Generai Earthwork Based on our current understanding of the planned development, site grading will consist of cuts and fills on the order of eight feet or less in the building lot and access I roadways. Cuts and fills will be also be necessary for construction of the proposed ', storm water detention pond. Erosion control measures during site grading should I consist of silt fencing along the site perimeter and mulching of the exposed earth surfaces, as necessary. The ground surface where structural fill, or foundations are to be placed should be observed by a representative of ECI. Building and pavement subgrade areas that are exposed to extended periods of precipitation will likely become unstable. If the subgrade soil in the proposed foundation and pavement areas becomes saturated and unstable, overexcavation of the unstable soil and replacement with a granular structura! fill wiil be necessary. In our opinion, the native silty sand with gravel soils can be considered for use as ' structural fill, provided the soil is placed during dry weather conditions, and provided the moisture content of the soil is at or near the optimum moisture content at the time of placement. Aeration and moisture conditioning of the soils may be necessary. The � underlying nati�e silty sand with gravel was in a moist to wet condition at the time of our field exploration, with moisture contents that were in the range of 14 percent to 20 percent rnoisture. The native silty sand with gravel soils are moisture sensitive, and the soils will degrade rapidly if exposed to excessive moisture. Moisture contents of the soil samples collected at the site are provided on the test pit logs included in Appendix A of this report. Earth Consultants, Inc. GEOTECHNICAL ENGINEERING STUDY KBS Development Corporation E-11069-1 July 13, 2004 Page 6 Successful use of the native soils as structural fill may require moisture conditioning and aeration af the soils prior ta p(acement. Soii stockpiles should be covered with i - plastic sheeting during wet weather conditions. The entire stockpile down to the toe of the pile should be covered with the plastic sheeting. Imported soil intended for use as structural fill shou(d consist of a free draining, wetl- graded granular soil with a moisture content that is at or near optimum, and having a maximum aggregate size of four inches. The imported soil should have no more ihan 5 - percent fines passing the No. 200 sieve based on the minus 314-inch fraction. During periods of extended dry weather conditions, use of a granular soil with less than 30 percent fines can be considered. Samples of imported soi! should be submitted to ECt for sieve analysis testing. Structural fill is defined as compacted fill placed under foundations, roadways, slabs, pavements, or other load-bearing areas. Structura! fill under slabs and footings should be placed in horizontal lifts not exceeding twelve (12) inches in loose thickness and compacted to a minimum of 95 percent of its laboratory maximum dry density. The maximum dry density should be determined in aecordance with ASTM Test Designation D-1557-91 tModified Proctor). The fill materiafs should be placed at or near the optimurn moisture content. Fill under pavements ar�d walks should also be placed in horizontal lifts and compacted to 90 percent of the maximum dry density except for the top twelve (12} inches, which should be compacted to 95 percent of the maximum dry density. , Stope Fill Placement ` Placement of fill on existing sloping grade may be necessary at some locations throughout the site. In our opinion, the placement of fill on slopes is generatty acceptable. However, where the existing slope grade exceeds 15 percent, the fitl should be keyed and benched into the slope. This process consists of excavating a keyway at the toe of the pfanned fill. The keyway should have a width of about six to eight feet and depth of two feet into medium dense __ to dense native soil. The slope above the keyway should then be cut into a series of � - horizontal to slightly inward sloping benches. Typically, the benches are excavated with , a bulldozer as the fill is placed in lifts and compacted. ', Earth Consultants, Inc. ' GEOTECHNICAL ENGINEERING STUDY KBS Development Corporation E-11069-1 July 13, 2004 Page 7 Foundations In our opinion, the proposed residential structures can be supported on conventional spread and continuous footings bearing on the medium dense to dense native silty sand with gravel or granular structural fill. As previously mentioned, we estimate competent � native soils suitable for support of foundations should be encountered at depths of two and one-half to three feet below existing site grades. - For foundations bearing �n the medium dense to dense native silty sand with gravel or granular structural fili, an allowable soil bearing capacity of two thousand (2,000} psf should be used to design the foundations. This allowable soil bearing capacity has a factor-of-safety in excess of 3.0 against shear failure, provided the foundations are placed on competent native soils or granular structural fill. A one-third increase in the above allowable soil bearing capacity can be assumed for short-term wind and seismic loading conditions. Continuous and individual spread footings should have minimum I widths of eighteen (181 and twenty-four (24) inches, respectively. �� if loose or unstable soil conditions are encountered at the footing subgrade elevation, the soil will need to be overexcavated, and replaced with granular structural filt. The - width of the overexcavation should extend a minimum of twelve (121 inches beyond each edge of the foundation. As previously discussed, care will need to be taken to protect and preserve exposed subgrade surfaces to limit the amount of disturbance to the subgrade, and to limit the need for overexcavation. If necessary, to help protect and preserve exposed foundation subgrade surfaces, two inches of crushed rock can be placed as a working surface along subgrade surfaces. Exterior foundations elements should be placed at a minimum depth of eighteen (18) inches below final exterior grade. Interior spread foundations can be placed at a minimum depth of twelve (12► inches below the top of slab, except in unheated areas, where interior foundation elements should be founded at a minimum depth of eighteen (18) inches. Provided the foundations are placed in accordance with the recommendations contained in this report, we estimate total settlement of approximately one inch and .- differential settlement of approximately one-half. Most of the anticipated settlements should occur during construction as dead loads are applied. Earth Consultants, Inc. GEOTECHNICAL ENGINEERING STUDY KBS Development Corporation E-11069-1 July 13, 2004 Page 8 Lateral {oads can be resisted by friction between the 6ase of the foundation and the supporting soil, and by passive soil pressure acting on the face of the buried portion of the foundation. Resistance to lateral loads from passive earth pressures should be calculated using an equivalent fluid with a unit weight of three hundred fifty (350) pounds per cubic foot (pcf). To achieve adequate passive resistance, the foundations must be backfilled with structural fill. As an alternative, the foundations can be poured neat against the undisturbed native soil. For frictional capacity, a coefficient of 0.40 should be used for foundations bearing on competent native soils or granular structural - fill. These lateral resistance values are allowable vatues; a factor-of-safety of 1 .5 has been inctuded. Footing excavations should be observed by a representative of ECI prior to placing the formwork and rebar. ECI should also perform compaction testing of structural fill and observe areas where overexcavation is required to remove loose or unstable soils. � Compacted Berm and Till Liners In our opinion, the native glacial till soils observed at the test pit locations should be suitable for the storm water detention pond berms, and if necessary, a compacted till liner. At the tirne the native soils are ptaced, the moisture content of the soils should be at or slightly above the optimum moisture content. Moisture conditioning or aeration of the soil may be necessary prior to placement. The soil used for the pond berms and compacted till liner should meet the following gradation: Till Liner Gradation Sieve Size Percent Passin 6-inch 100 4-inch 90 No. 4 70 - 100 No. 200 20 - 100 The thickness of a compacted till liner should be at least eighteen (18} inches. The pond berms and till liner, if necessary, should be compacted to a relative compaction at least 95 percent (ASTM D-1557). ECI should observe the placement of the detention pond berms and tili liner, and provide testing of the compacted soil. Earth Consultants, Inc. GEOTECHNICAL ENGINEERING STUDY KBS Development Corporation E-11069-1 July 13, 2004 Page 9 Retaining Walls Retaining walis should be designed to resist laterai earth pressures from the retained soils, and any surcharge Ioading. Walts ihat are unrestrained and free to move at the top should be designed using an equivalent fluid with a unit weight of thirty-five (35) pcf. The earth pressure imparted on restrained walls should be calculated using an equivalent fluid with a unit weight of fifty (501 pcf. The above equivalent fluid values assume surcharges due to traffic, sloping backfit{, adjacent foundations, construction loads, or any other loadings will not apply. If surcharges are to apply, they should be added to the above design lateral pressures. Where drainage behind retaining walls �' cannot be accomplished, hydrostatic pressures should be added to the design wall pressures, where appropriate. , For traffic surcharge loading consisting of passenger vehicles or light delivery trucks, a �� uniform pressure of seventy (70) psf should be applied in a rectangular distribution along the height of the retaining wall. Where traffic surcharge loading from heavy trucks will be present, ECI should review the walt and roadway configuration and provide modified surcharge values, if necessary. If sloping backfill conditions are present behind the walls, EC! should review the slope configurations and provide modified equivalent fluid values, as necessary. Retaining and foundation walls should be provided with a four-inch diameter perforated drainpipe and backfilled with a free-draining granular soil with less than 5 percent fines (percent passing the No. 200 sieve based on the minus 3/4-inch fraction). The zone of free-draining granular soil should extend along the entire height of the wall, and a distance of at least eighteen (18) inches behind the wall. A surface seal consisting of a less permeable silty sand soil can be placed along the upper one foot of the wa�l backfill, if desired. The remainder of the backfifl behind the zone of free draining soil should consist of a suitable granular structural fill. Earth Consuhants, Inc. t � GEOTECHNICAL ENGINEERING STUDY KBS Deve(opment Corporation E-11069-1 : July 13, 2004 Page 10 Seismic Design Considerations _ The Puget Sound region is classified as Zone 3 by the Uniform Buitding Code (UBC). The largest earthquakes in the Puget Sound region have been subcrustal (intraplate? F events, ranging in depth from fifty (50) to seventy (70► kilometers. Such deep events z have exhibited no surface faulting. Weaver and Shedlock (19891 researched the � probable or known saurce areas for the crustal, intraplate, and subduction zone earthquakes in the Washington and Oregon area. Crustat and intrap{ate earthquakes are the only events in Washington and Oregon in which there is a historical record. Shallow crustal earthquakes occur within the North American Plate, and typically do not exceed focal depths of approximately 20 kilometers. Intraplate earthquakes occur � in the subducting Juan de Fuca plate, and typically occur below depths of 40 I kilometers. The recent February 28, 2001, earthquake that was focused }'ust north of Olympia, Washington was an intraplate earthquake, and had a magnitude of M� =6.8. I The subduction zone earthquake, in which there is no historical record in the ! � Washington and Oregon area, would have its source along the interface between the North American Plate and the subducting Juan de Fuca Plate. Magnitude 8 + earthquakes are thought to be possible along this interface, and would occur at depths of approximately 50 to 60 kilometers (Weaver and Shedlock, 1989). = The UBC Earthquake regulations have established a series of soil profile types that are used as a basis for seismic design of structures. Based on the encountered soil � � � conditions, it is our opinion that soil type Sc from Table 16-J of the 1997 UBC should �� be used for design. For Intemational Building Code (IBC} based design, Site Class C ; ,� from Table 1615.1 .1 of the 2003 IBC should be used. '' Liquefaction is a phenomenon in which soils lose all shear strength for short periods of , time during an earthquake. The effects of liquefaction may be large total and/or ° differential settlement for structures with foundations founded in the liquefying soits. 13 Groundshaking of sufficient duration results in the loss of grain-to-grain contact and , r t rapid increase in pore water pressure, causing the soil to behave as a fluid for short ' E� periods of time. ( To have potential for fiquefaction, a soi{ must be cohesionless with a grain size � �= distribution of a specified range (genera{ly sands and silt); it must be loose to medium- dense; it must be below the groundwater table; and it must be subject to sufficient � � magnitude and duration of groundshaking. 6 ! � Earth Consultants, Inc. i;. i , GEOTECHNICAL ENGINEERING STUDY KBS Devefopment Corporation E-11069-1 Juty 13, 2004 Page 1 1 , Based on the soil and groundwater conditions observed at the site, it is our opinion that ' the site has a low susceptibility to liquefaction. The dense condition of ti�e native soils - is the primary basis for this conclusion. � Stab-on-Grade Floors ' I : Slab-on-grade floors should be supported on competent native soils or granular structural fill. Loose or unstable subgrade soils should be stabilized prior to - construction of the sfab. Fill areas will be particularfy susceptible to disturbance during � wet weather conditions. Care will need to be taken to preserve the integrity of the I subgrade soils, particularly during the installation of the under slab utilities. tf the construction is performed during the drier summer months, measures to preserve the ', subgrade soils will likely be minimal. During periods of wet weather, however, a free � draining structural fill may need to be utilized throughout the upper twelve (12) inches li of the building pad to help preserve the integrity of the subgrade. i,, A minimum four-inch capillary break consisting of a free draining poorly graded gravel � with less than 5 percent fines (percent passing the No. 200 sieve, based on the minus ' 3/4-inch fraction) should be placed below the slab. A vapor barrier consisting of a minimum 6-mil plastic membrane should be placed above the capillary break. To aid in r curing of the concrete slab, two inches of sand can be placed over the plastic membrane. j � The subgrade soils in slab-on-grade areas of the site should be observed by a ,� representative of ECI prior to placing the capillary break material. '� Site Drainage 3 ; During construction, surface water runoff must not be allowed to stand in construction areas. lnterceptor trenches should be established, as necessary, along ihe perimeter of the building site to intercept surface water runoff or groundwater before it enters the ;� construction area. During construction, loose surfaces should be compacted to reduce the potential for moisture infiltration into the soils. Finish grades around the buildings must be sloped such that surface water is directed away from the buildings. �f _ �_ � Earth Consultants, Inc. .: I I - I i I `.• � _ — _ _ ; GEOTECHNICAL ENGINEERiNG STUDY ! KBS Development Corporation E-11069-1 �' ;� = July 13, 2004 Page 12 I t i Footing drains should be installed around the perimeter foundations to intercept 'I groundwater seepage. A typical perimeter footing drain detail is illustrated on Pfate 3. �, _ Under no circumstances should roof downspout drain lines be connected to the footing � or foundation wall drain systems. All roof downspouts must be separately tightlined to I the site storm water system. I In the deeper site excavations, the presence of groundwater seepage should be ', 1 expected, particularly if the excavation is performed during the wet season. The I presence of groundwater seepage should be expected in the excavation for the . stormwater detention pond. Due to the generally dense condition of the glacial till soils observed at the test pit locations, we do not anticipate the groundwater seepage wilt ! ' create a stability problem. However, measures to intercept the groundwater seepage , - and direct it to an appropriate discharge location may be necessary. Excavations and Slopes The following information is provided solely as a service to our client. Under no � circumstances should this information be interpreted to mean that ECI is assuming T responsibility for construction site safety or the contractor's activities; such responsibility is not being implied and should not be inferred. ' I In no case should excavation slopes be greater than the limits specified in local, state, and Federal safety regulations. Based on the information obtained from our field exploration, the upper deposits of inedium dense, silty sand with gravel that extends to � a depth of approximately three feet below existing site grades, would be classified as Type C soils by Occupational Safety and Health Administration (OSHA}. Temporary �: cuts in Type C soils should be sloped at an inclination no steeper than 1 .5H:1 V, respectively. The unweathered glacial till observed below a depth of approximately three feet would be classified as Type A and Type B soils by OSHA. Temporary slopes �� constructed in Type A and Type B soils should be inclined no steeper than 0.75H:1 V r, and 1 H:1 V, respectively. ECI should observe the excavations to assess soil and groundwater conditions, and to verify the OSHA soil type. �F , . Permanent cut and fill slopes shou(d be inclined no steeper than 2H:1 V. Cut slopes �� should be observed by ECI during excavation to verify that conditions are as anticipated. Supplementary recomrnendations can then be developed, if needed, to improve stability, including flattening of slopes or installation of surface or subsurface �: drains. In any case, water should not be allowed to flow uncantrolled over the top of �, slopes. �I � ` Earth Consultants, Inc. � I �j I r, . . I ►� GEOTECHNICAL ENGINEERING STUDY KBS Development Corporation E-11069-1 July 13, 2004 Page 13 Permanently exposed slopes should be seeded with an appropriate species of vegetation to reduce erosion and improve stability of the surficial layer of soil. Utility Trench Backfill Based on the soil conditions encountered at the time of our exploration, the native soifs should provide adequate support for utilities. If remedial measures are necessary to provide adequate support for utilities, the unsuitable soils shoufd be overexcavated and - replaced with a suitable structural fill material. In our opinion, the native silty sand with gravel soils can be considered for use as backfill for the utility trenches, provided the soil moisture content is at or near its optimum level. As previously mentioned, the native soils were generally moist to wet, and had a moisture content that was near or above its optimum level. Some moisture conditioning of these soils may be necessary prior to use as structural fill in the utility trenches. .;; Due to the moisture sensitive nature of the native silty sand with gravel soils, ! placement and compaction of the soil will need to be performed during dry weather - conditions. To protect the soils from wet weather conditions, soil sto�kpiles should be . covered with plastic sheeting. The plastic sheeting should cover the entire stockpile. ` Due to the moisture sensitive nature of the native silty sand with gravel soils, the upper �= twelve i 12? inches of the trench backfill in building and pavement areas may become � disturbed if exposed to wet weather conditions and construction traffic. Construction , . traffic should be kept to a minimum along utility trench alignments where backfilling i` and compaction have been completed. As an altemative, a free draining gravel can be , used to backfill the upper twelve !12) inches of the trench excavations to provide a i . wearing surface, and to help protect the unde�lying moisture sensitive backfill. Use of a free draining backfill along the upper twelve (12) inches of the trench excavation �° would likely only be necessary if construction is performed during the wet season. i . i E � Earth Consultants, Inc. �. i. GEOTECHNICAL ENGINEERING STUDY KBS Development Corporation E-1 1069-1 July 13, 2004 Page 14 Utility trench backfill is a primary concern in reducing the potentia! for settlement in ° pavement areas. It is important that the utilities be adequately supported in the r bedding material. The material should be hand tamped to ensure support is provided around the haunches of these structures. Fill should be carefully placed and tamped to � about 12 inches above the crown of the pipe before heavy compaction equipment is brought into use. The remainder of the backfill should be placed in lifts having a loose thickness of less than twelve �12) inches. A typical trench backfill section and compaction requirements for load supporting and non-load supporting areas is - presented on Plate 4. It is important to note that iocal utility districts may have , compaction requirements that differ from those presented on Plate 4. ' Rockeries and Modular Block Walls In our opinion, the use of rockeries or modular block walls at the site is feasible from a geotechnical standpoint. If rockery or modular block walls are utilized, an engineered design will need to be completed for rockeries and walls that exceed four feet in height. ECI can provide an engineered design for the site, if requested. At a minimum, Y ECI should review the layout of the proposed walls and the proximity of roadways and foundations to the walls. Supplemeni geotechnical recommendations can then be ' prepared; if necessary; to address wall design and surcharge loading. Pavement Areas -� The adequacy of site pavements is related in part to the condition of the underlying � subgrade. To provide a properly prepared subgrade for pavements, the subgrade ,, - should be in a firm and unyielding condition when subjected to proofrolling with a `= loaded dump truck. Structural fill in pavement areas shoufd be prepared as described in -. the Site Preparation and Genera! Earthwork section of this report. This means the ,� pavement subgrade should be compacted to at least 95 percent of the maximum dry density in structural fill areas. It is possible that some localized areas of soft, wet or unstable subgrade may exist after the pavement subgrade is prepared. Overexcavation �; and a greater thickness of structural fill or crushed rock may be needed to stabilize these localized areas. t � :t � Earth Consultants, Inc. GEOTECHNICAL ENGINEERING STUDY KBS Development Corporation E-11069-1 ' � July 13, 2004 Page 15 I Assuming a prope�ly prepared subgrade that is in a firm and unyielding condition when I ' subjected to proofrolling, the foilowing pavement section for lightly-loaded areas is � , : suggested: ' [ • Two inches of asphalt concrete (ACI over four inches of crushed rock base r (CRB} material, or � _ I • Two inches of AC over three inches of asphalt treated base (ATB) material. r- � - Heavier truck-traffic areas will require thicker pavement sections depending upon site I, „ usage, pavement life, and site traffic. As a general rule, the following sections are suggested for truck-trafficked areas: 1 • Three inches of AC over six inches of CRB, or I �- � - • Three inches of AC over four and one-half inches of ATB. r ' �_ Asphalt concrete (AC), asphalt treated base (ATB), and crushed rock base (CRB) materials should conform to WSDOT specifications. All rock bases should be �' compacted to at least 95 percent of the maximum dry density. i � LIMITATIONS f` �= Our recommendations and conclusions are based on the site materials observed, � selective laboratory testing and engineering analyses, the design information provided to us, and our experience and engineering judgement. The conclusions and ` recornmendations are professional opinions derived in a manner consistent with that �= level of care and skill ordinarily exercised by other members of the profession currently �t practicing under similar conditions in this area. No warranty is expressed or impiied. ! ° The recommendations submitted in this report are based upon the data obtained from � : the test pits. Soil and groundwater conditions between exploration sites may vary from those encountered. The nature and extent of variations between our exploratory f 4 locations may not become evident until construction. If variations do appear, ECI � = should be requested to reevaluate ihe recommendations of this report and allowed to . modify or verify our recommendations in writing prior to proceeding with the ` � construction. � . � Earth Consultants, Inc. i_ GEOTECHNICAL ENGINEERING STUDY KBS Development Corporation E-11069-1 July 13, 2004 Page 16 Additional Services We recommend that ECI be retained to perform a general review of the final design and specifications to verify that the earthwork and foundation recommendations have been properly interpreted and implemented in the design and in the construction t specifications. � We also recommend that ECI be retained to provide geotechnical services during � construction. This is to observe comptiance with the design concepts, specifications or recommendations, and to aflow design changes in the event subsurface conditions differ from those anticipated prior to the start of construction. ECI should be retained ` to review the construction drawings and specifications, and to provide construction observation and testing. � � ,, .4 t i .} Earth Consultants,Inc. .� . ' _ - � �� r Q � '1 iti� I .� ' �w. x ' a#.� .m � `,Z, ^ � �7 G i:ihl - •" . F" . . . � iF �H,� G ' �� .�"1 1_ �_ �' _'I „{ a . . . _ 4 . -. ,1�_ , �, - ,. � '.E"��TII JI 4l 5 �1 J�-•'. �� -� y.' � '^7 �,N�- - f;tx� ��, �� r � r � alJW 5 �`, :{ ti = �c ��u�t -'r �� >, _ �� T, ^1 � F - g _'F N CaClf'v1H � � y�� r �-;; -E .a�., ..j � .� � �r ��IIIC/ \�� L� � � V > � y�r-0(lNTA(N - • 5� 887H �•�'ST � } � J' I�'L f i� i -��t� 9slf �5 �.,N "rEGIGAWi . :.+,ti ' ' 'f ` 3n., ''� - a n w y��C �� ✓tLCiiJtD y�� z_ � a,H -C .c�.� .M £atN ��, ! � i - S'cR6-til - } � -SE 34TN S7 t. . " � � :� P� � 'AF'X �� `,r , o ; *'n ,,._ i y s'�tU .. � 90TH 5T ,�LtY ! i � '� s,,. T y f,,�, _ �', �a .c�nb',' SE 915T'' ST. CR�f.� - .a, .!'F,9�,�� vG.� ..J?f�G� .. 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" . - .� li ' - . . , . .: . . ' �- I , . '—_- __-'-_'_-___-._-- __.__-`__ _- _-- � I ____.__�i,� __l�._'_ :. ___._.-_-- Reference: EaCth COC1SUltaCltS, IC1C. Geolechnical Engineering Geology.Environmental Sciences King County Construcfion Testing&iC6o/wA6o inspeaion Services Map 626 By Thomas Brothers Maps Dated 2004 Vicinity Map Stone Ridge II King County, Washington NOTE: This plate may contain areas of color. � ECI cannot be responsible for any subsequent Drwn. GLS Date July 2004 Proj. No. 11069-1 misinterpretation of the information resulting � from black & white reproductions of this plate. Checked SSR Date 7/2/04 Plate 1 1 � 1 � , ,,,,,. .. ,� � , .;� -� r , � - - - - - - - - -� - - - - - - - - - - - - - - - - - - - - - - - � �- - - - - - - - ,- - - - - - - , - - - - - - - - - - - - - - - - � - - - - - � , , ^ T I 1 ; � 38 I i - - - - � - - � — 1 ,� I I / � . 1 , � V � 37 �� \ 3� � / � ' I I � i — � 1- - - - - - I � _ _ti 35 �� /��` /-�TP-�`, � / I � / � � 39 i �} — � —r 1 \ � � � G f � � `— � I -S0 � I I � � � � – � � 36 � � � 1 ; i � TP-14 � I I � I I ' ' � � � � ,�/� 33 I \\ . 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No. - - - - - - L — � - - - -, --`'�- - - - - - - - � - -�- - - - - -� - - - - - - � E-11069, April 2004 i - - � � Subject Site � - - — ' Earth Consultants, Inc. �� PCOpOSBC� LOt NU171beC ,`,, ' ceotechnical Englneedng Geology.Environmemal Sdences Construafon Tesling&ICBO/WABO Inspectlon Servlces � Proposed Detention Pond NOTE: This Plate may contain areas of color. TeSt Plt LOCatlOtl Platl ECI cannot be responsible for any subsequent - - misinterpretation of the information resulting Stone Ridge I I - Wetland Areas Kin Count Washin ton i _ (Delineated by Others) Approximate Scale from black& white reproductions of this plate. g Y� g 0 50 100 200ft. Drwn. GLS Date July 2004 Proj. No. 11069-1 Approximate Location of Checked SSR Date 7/2/04 Plate 2 ECI Test Pit Not Included . _.. _ __ ___ . _ q� � � I : � q� _Sbpe To Drain � 4� � �— . :' r~.: _•.i,,._,Y Q� •. ••.•:::��'-'� • :f• ��J.� 'h:f• �.\ .� .��Mi i'�..� ��. ••i'��. .�. �� 6 inch min. ;:j. ':;: :•..-:.;i.: ':.,•:: :.;_.: ;..: 3� __ _ •c''ca�•;�-o-ao=:;`-' ''•o';:�o:;;'o�'��"�;ro�bo'000 •�o� o O p Oo o� �� 0�0 p Oo o� ��o O p o0 '� o�bo o��00��09�°0 0��00��0 0�� 8111Cf1 i� O ��° o �O O �°O�o° � �O°O �°��o min. DO �pc ° a O �O op° ° u O u0 �p° o po 000 � o Oa o�0 � e Oa o�Doo��op � oo �00��0 � � opoo� �� o°� o�o Oo �� po0 �o�°Op�o � �00 p°o p o 0 ;� 4inchmin. o00000 oa o 000a,00 00 0 0000a o ° o 0 op o � o 00 0 op o � o ° a Diameter _____ oo,o0 0 0 00 0 0 ,oa o 0 0 � Perforated Pipe o�o 0 0 0 0�0000�o 0 0 Wrapped in Drainage �° ° °a'Oo `�o �' o °o � Fabric ao o° o ° °000 000 0� o ° o oo��o ° O O�O O o -- 0 0 _ a � o r . _ n `� 2 inch min./4 inch max. 2 inch min. 12 inch min. ` � t Fr_,FNn � � � Surface seal;native soil or other SCHEMATIC ONLY- NOT TO SCAI_E � '''':: bw peRneability material. NOT A CONSTRUCTION DRAWING o p a , ' ' °° ° ° 1"Drain Rock !' OO 0 � i 0 O i � . j Drain pipe; perforated or slotted rigid 6 � O PVC pipe laid with perforations or � �Jarth Consultants, �C1C. slots facing down; tight jointed•with a Gro�echrUcal Engineers.Geobgists 6 Hn�tronmerval Scienfists Cor�slruction Testing 6 trBO!WABO Inspec7ion Services positive gradient Do not use flexible ? oorrugated plastic pipe. Do not tie ; j building downspout drains into footing TYPICAL FOOTtNG SUBDRAIN DETAIL fines. Wrap with Mirafi 140 Flter Fabric Stone Ridge ll or equivalent. King County, Washington Drwn. GLS Date July 2004 Proj. No.11069-1 Checked SSR Date 7/2/04 Plate 3 } "i ; = � Non-Load Supporting Floor Slab or Areas , _Roadway Areas_ , ,�� — i�--- --�i - f=�i: ��=�L• : ;:e ��;:•:•:: o op o a o o Varies li �� . - �';,•.. �i��:•'�' : � 5 0°0 - ;' :; :85:'•: ';' °o 0 0�° o 0 • :: :::=: , i :r�j;,• '.:::�� .�.. .,..:ti.•.. . : :•. . 5 . •,= ,: 1 foot min. :::: ::;.�. ~=�;�:::::�=�;. r ..:;::� `;; . :;:;: ;_. ,. '�. �':. •:: .•,. �,. ;� ,:. I . 1 �;. ;�::�;: Backfill '�; -''� :.:'�;': -::: =.:;::: .�:.;•: � �•. :�Y♦ :� .��. ••'i .��. . "� � '«�� .�"'� •.y: � � �•�• _� �;� '�:�.��:;�.;.;�: 9U .. i : ,� ::.; ;�.•;,�;:�;•. '::: :� �;•r.�• �::.=• Varies :: :. ::;:: ';:: .�;j.: :: ''•':: .�: �j :::: �:�::: :-r: ::�::: } :,�=: ::,. ::: �:: ::= :::::;: =::: :. .t: . :�::: :: :-�: .�::::. :.:::::. � — o " ' . Pipe . . . o��a•�$.Qo .s:^�;Qo�:�a �'O �' . •�• O'�j. 'Cf�:�U-b�°Cf o o.d-'��'Ct�' Bedding ': �.�a�bQ� � �:-�Q�°.�bQ•� �, Varies eq o.O o.p:Q o.O.o,p.4 o.O o'� 4. :�ct "`��(:Q'c� '� d '� �,�,`,�"„o b,�,�,o a�b,�,�e,o o(�Q� od��:d:•S�-Qooq:P.d:'$�o��6:'�-Qo��d :p._Do :p._Qo :p._Qo C � � t �Fc�FNn ' - Asphalt or Concrete Pavement ; t or Concrete Floor Slab � Base Rock or Capillary Break, SCHEMATIC ONLY-NOT TO SCALE }` °` � NOT A CONSTRUCTION DRAWING �� as Appropriate � Backfill;Compacted On-Site Soil ' �-''"!�' or Suitable Imported Fill Material , � Minimum PenceMage of Maximum � Laboratory Dry Density as determined by ASTM Test Method D 1557-91 Earth Consultants, II�IC. � ' 90 �� Geored�nic�Engineers.(',Dobgists 6 EnvLonrt�tal Scientis�s (Modfied Proctor), unless otherwise Consrruction Tes�ingd ICBO/WABO Inspection Services specified in the attached report text. TYPICAL UTILITY TRENCH FILL • � Bedding Material;material type depends �• � on type of pipe and laying conditions. StOfle Rid9e (I Bedding should conform to the King County, Washington manufacturers recommendations for the type of pipe selected. Drwn. GLS Date July 2004 Proj. No.11069-1 Checked SSR Date 7/2/04 Plate 4 APPENDIX A ' FIELD EXPLORATION E-11069-1 �I , Our field exploration was performed on April 26, 2004. Subsurface conditions at the site were explored by excavating fifieen (15} test pits throughout the site. Three of the test pits were excavated within the proposed Stone Ridge II development. The approximate test pit locations were determined from existing landmarks presented on available plans. The locations of the test pits should be considered accurate only to the degree implied by the method used. These approximate locations are shown on the - Test Pit Location Plan, Plate 2. The field exploration was continuously monitored by a geologist from our office, who � classified the soils encountered and maintained a log of each test pit, obtained representative samples, measured graundwater levels, and observed pertinent site features. Alf samples were visually classified in accordance with the Unified Soil Classification System that is presented on Plate A1 , Legend. Logs of the test pits are presented in Appendix A, Plates A2 through A4. The final logs represent our interpretations of the field logs and the results of the laboratory tests of field samples. The stratification lines on the logs represent the approximate boundaries between soil types. !n , actuality, the transitions may be more gradual. , � I l. r, i ls ► � l� f ' i � ► I k . � i Earth Consultants, Inc. i { i MAJOR DIVISIONS GRAPH LETTER TYPICAL DESCRIPTION ISYMBOL SYMBOL I � Gw Well-Graded Gravels,Gravel-Sand And e' Clean Gravels O e a e Q e 9W Mixtures,Little Or No Fines Gravelly qittle or no fines) r � GP Poorly-Graded Gtavels,Gravel- Coarse Soils • � ■ Grained � � � gp Sand Mixtures,Little Or No Fines Soils More Than (�jM Silty Gravels,Gravel-Sand- �O% Coarse Gravels With gm Silt Mixtures raction Fines�appreciable �Retained On amount ot tines) (iC Clayey Gravels,Gravel-Sand- No. 4 Sieve gC Clay Mixtures Sa�d ��o 00 'o SW Well-Graded Sands, Gravelly And Ciean Sand o o� o a SW Sands, Little Or No Fi�es Sandy (little or no fines) ,x:*f:•::�:::?:��:A. More Than' Soils :a;;>_w<:;::�;k:;;#?i: gP Poorly-Graded Sands, Gravelly 50% Material :>;:;�<.;•:a;�,:>:.:4:s Sp Sands, Little Or No Fines Larger Than More Than No.200 Sieve 50% Coarse SM Silty Sands, Sand- Sitt Mixtures Size Sands With Sf11 Fraction Fines(appreciable Passing No.4 amount of fines! SC Sieve SC Clayey Sands, Sand-Clay Mixtures I M� Inorganic Silts 8 Very Fine Sands,Rock Flo�r,Silty- �p�" Clayey Fine Sands;Clayey Silts w/Slight Ptasticity Fine Silts � Inor anic Cla Liquid limit C� 9 Ys Ot Low To Medium Plasticity, Snilsed C�s Less Tban 50 �' C� Gravelly Clays, Sandy Clays, Silty CIaYs. Lean � I � I � 1 QL Organic SiRs And Organic � � � ( ' � p� Silty Clays Of Low Plasficity �� MH Inorganic Silts,Micaceous Or Diatomaceous Fir� More Than mh Sand Or Silty Soils 5056 Mater�al gilts Liquid Limit Smaller Than And CH Inor9anic Clays Of High No.200 Sieve Clays Greater Than f. Ch Plasticity, Fat Clays. Size / / / / / ��/j QH Organic Clays Of Medium To High Ofl PlaSficity, Organic Silts `L�� `�� `�� PT Peat, Humus, Swamp Soils Highly Organic SoilS , �, �v, �� pt With High Organic Contents Topsal 'y y y y� Humus And DuH Layer I'i Fill Hfyhly Variable Constituents The discussion in the text ot this report is necessary for a proper understanding of the nature � of the material presented in the attached logs. ; DUAL SYMBOLS are used to indicate baderline soif classification. I C TORVANE READING,tsi I 2"O.D.SPLIT SPOON SAMPLER qu PENETROMETER READING,tst W MOISTURE,%dry weigM � 24'I.D.RING OR SHELBY TUBE SAMPLER � P SAMPLER PUSHED i ' SAMPLE NOT RECOVERED � WATER OBSERVATION VYELL pcf DRY DENSITY,Ibs.per cubic ft. LL LIQUtD LIMR,% 4 DEPTH OF ENCOUNTERED GROUNDWATER P! PLASTIC 1NDD( DUR{NG IXCAVATION Z SUBSEG?UENT GROUNDWATER LEVEL W/DATE � Eartl� Consultants �nc. LEGEND [�.r:��ai n u�.d I:i i�n n.��s.(�uik�6ists A 1 n.�iru�ii ix��u��I 5cx��o�s � i Proj. No. 11069 Date July zoo4 Plate A1 ; Test Pit Log �ro�a r�: sn� o� Stone Rid e 1 1 , Job No_ La�ged by. Date: Test Pd No.: , 11069 SSR 4/26/04 TP-13 Ezcavation Contactor: Ground Surface Ele�ration_ NW E�acavating 370' �: L $ L � � $ surfaoe ca,atans: Depth of Topsoil 8�Sod 4":grass/straw I� Notes q6 E T o�i E u�i T ! ( ) � �n � '�i � �n SM Brown silty SAND with grav�el, loose, mast(Fill) I 1 2 3 SM Brown silty fine SAND, loose, moist 14.5 4 -19.0%fines 5 6 � -decrease in s+lt content II s I s �o I 14"3 11 i� Test pit terminated at 11.0 feet below e�osting grade. No groundv�rater Iencountered during e�a�ration. � . I � I � � � 0 0 U W � Q C1 � Test Pit Log F.arth Consultants Inc. Stone Ridge Cx%M!(iulkal Pn¢h�Y.r.7fi,G�Ok)giSA 4 FfN11mnY.rN.l1 S[1tt�1l.'A' ��g County,Washington a W Proj.No. 11069 Dwn. GLS Date May 2004 Chedced SSR Date 5!4/04 Plate A2 Subsurface coriditions depic�ed represerd our observations al the time and location d this e�loratory hole,moditied by engincering tests,analysis and �udgrnent They are not necessan'ly represer►tatnre of other times and locatiau.We cannot aoce�t respa�siblfity fa the use or interpretation by dhers af �..��.,..�1ur.,.,.,ece.,��1.....nK�..n Test Pit l.og ; Pro�ea r�ame: sheet or Stone Rid 1 1 , Job No. Loc,�ed by: Date: Test Po No.: 11069 SSR 4l26/04 TP-14 ! E�a�.ava�tion Camactor: Ground surface Ele,ration: NW E�avating 375' Notes: General W t $ t . a u� � Surface Cond'rtior►s: Depth of Topsoil 8�Sod 4":grass N0�@S °6 � T m LL E � E. ( 3 c� m � i9i � <n SM &ovm silty SAND with gravel, loose to medium dense, moist(Fill) . 1 2 SM Brown silty SAND, loose to medium dense, moist -` 15.1 3 � 4 5 -medium dense -dense 6 -decrease in sitt content � � s �s.o : "- 9 Test pit terminated at 9.0 feet below existing grade. No groundvwater encountered during e�acavation. I ., � -- � : � a 0 c� ' U W ' a � Test Pit Log $ F.arth Consultants Inc. Stone Ridge � `'�„`''""a"''�"'�'`""`'�`�,"m""""�"`""'� fGng County,Washington � s � Proj.No. 11069 Dwn. GLS Da�e May 2004 Chedced SSR Date 5/4/04 PI�e A3 � Subsuriace oond'd'ans depic�ed nepresent our abservalions at the time and location d lhis e�loratory hole.modified bY engincerin9 tesis.analysis and ludgm�t- 1T�e'Y are not neoessariy representative oi dher tirr►es and bcations.We c�not aocept respons�bility tor the use or iMe�xetation by others d ..l...,..�f;.,.,.,nncu.darl,..,fh:e L.., Test Pit Log Pro�ed rleme: sr,eet of Stone R' e 1 1 Job No. Loc,�ed by. Date: Test Pid No.: 11069 SSR 4/26104 TP-15 E�avation Contactor. Ground Surtace Elevafion: NW E�avatin 400' No�tes: � — L o � surfaoe conditions: Depth of Topsoil 8�Forest Duff 6" , Notes y6 �$ m `L a `� � ( ) � � o � � <n SM Brown silty SAND with grawel, medium dense, moist 1 2 20.7 3 . 4 -�nSE 5 102 s Test pit terminated at 6.0 feet below e�assting grade. No groundwater encountered during e�acavation. � � � 0 � � U w -� a � Test Pit Log 3 Earth Consultants Inc. Stpne Ridge � G�ort`(Ylydt-al Fil(�m[�T'.,Cw�Ob�.sK 4 Fmllf7mtt�n4tl titlmtk.'A.' FGng County,Washington a � Proj.No. 11069 Dwn. GLS Date May 2004 Chedced SSR Darte 5/4/04 Prate A4 Subsurfaoe condtio�s depided reExesent our obsenratio�s at the time and IocaRion d this e��bratory hole,modified by engineering tests.analysis and juckynent. They are not neoessariy representative ot other tirries and locations.We cannot acoept respons�ility for the use or interpretation by others of �r+f�.mafirv�rvmnn}oii n�lhic hn _� : i � r - Y t � �� 3� J� 3 ; � .j _ � ,� � � ` � ; APPENDIX 6 � , f LABORATORY TEST RESULTS �, E-11069-1 ' i I � j : l c f Earth Consultants,inc. _ a � Particle Size Distribution Report �� r � c ' �S r �i i s � �i � � L i � 100 ; � � w� SO _ i 70 r� Z � � [� Z 50 - W r tr � w^ Yll ,} a : � � .� � _ . � , , �o 0 ` i 200 100 10 1 0.1 . 0.01 Q.001 GRAIN SIZE- mm I %COBBLES %GRAVEL %SAND 96 SIIT 96 CLAY USCS AASHTO PL LL I o 16.0 65.2 18.8 SM � � 44.0 37.4 1 R.6 SM ,� _ � � 0 31.4 49.6 19.0 SM ; I SIEVE PERCENT FINER SIEVE PERCENT FINER SOIL pESCRIPTIQN I "�� U O p number G ❑ � O TP-7:9'-SM I , size s¢e Gray silN Sand with gravel;i 5°/.moisture - � 1.5 100.0 100.0 100.0 #4 84.0 56.0 68.6 ' 3/4 94.i 76_6 80.9 #8 76.4 51.5 61.6 ❑Tp_s: 12'-sM 3/8 91.3 64_6 75.9 1116 68.2 47.6 56.4 ' 113a 58.9 43.4 51.1 �y�lty Sand with gravel;6.l°io mo�sture ' fI50 32.6 29.6 30.4 . ; �TP-13:4'-SMt I #I 100 29.0 26.7 27.1 grown silty Sand with gravel; 14.5%moisture #200 18.8 18.6 19_0 I GRAIN SIZE REMARKS: . , O60 0.623 6.77 1.99 o Tech:nvC �30 Q.182 0.309 0.276 I D�� C)Tech:INC , � COEFFICIENTS �� C� �Tech:JNC �� , Cu o Source: Sample No.:TP-7 Elev./Depth•9' ❑Source: Sample No.:TP-8 Elev./Depth: 12' o Souioe: Sample No.:TP-13 Elev./I)epth:4' EARTH C1ef� Project: Stone Ridge " CONSULTANTS, INC. Pr � No.: E-11069 Plate B1 ; � �l � ' �� DISTRIBUTION I �j E-11069-1 '� �1 I � ', �, 4 Copies KBS Development Corporation 12320 Northeast Eighth Street, Suite 100 , �� Bellevue, Washington 98005 � Attention: Mr. Curtis Schuster �� i�� €�i i -� : � ,� :1 � �� . � � 1 - 1 eviewed By . ; : i � Kyle R. Campbell, P.E. Principal Earth Consultants, Inc. � � M�I W a � w x H 0 0 � 7.0 OTHER PERMITS Other permits include: • King County Grading Permit • City of Renton Grading Pernvt • City of Renton Building Permit • Water Extension Development Agreement • Sanitary Sewer Development Agreement >>�.�_�.d�x��E��i�ep] 8.0 ESC ANALYSIS AND DESIGN � � 8.0 ESC ANALYSIS AND DESIGN The northwest wet/detention vault and a separate temporary sediment trap will be the first order of construction such that both sides of the site, divided by Greene's creek, once graded and cleared, can be routed into the weddetention vault and sediment trap accordingly. This will trap sediments on-site and prevent both erosion from occurring on-site and sedimentation downstream. In addition a rock construction entrance and perimeter protection in the form of a silt fence with temporary V-ditches and rock check dams will all be instituted on-site to minimize erosion from occurring. Also, streets will be swept should any sediment be tracked off-site from truck hauling activities and the site shall be sprinkled with water during the summer months should dust control be a problem on the site. Cover measures will be instituted for any areas left unworked over the time allotted by King County and the City of Renton. 11444.006.doc[JPJ/tep) 9.0 BOND QUANTITIES, FACILITY SUMMARIES, AND DECLARATIONS OF COVENANT 9.0 BOND QUANTITIES, FACILITY SU1�I�Lc1RIES, AND DECLARATION OF COVENANT Should any of the�se be required by the City of Renton the_y �vill be prepared at that time as the Final Technical Information Report is prepared. I� i � - . 11444.006.doc[JPJftepJ 10.0 OPERATIONS AND MAINTENANCE MANUAL 'I I APPENDIX A MAINTENANCE STANDARDS FOR PRIVATELY MAINTAII�JED DRAINAGE FACILITIES NO. 4- CONTROL STRUCTURE/FLOW RESTRICTOR Maintenance Defect Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed General Trash and Debris Distance between debris buiid-up and bottom of All trash and debris removed. (fncludes Sediment) orifice plate is less than 1-1/2 feet Structural Damage Structure is not securely attached to manhote wall Struciure securely attached to and outlet pipe structure should support at least wall and ouUet pipe. 1,000 Ibs of up or down pressure. Structure is not in upright position(altow up to SVucture in correct position. 10%from plumb). Connections to ouUet pipe are not watertight and Connections to outlet pipe are show signs of rust. water tight;structure repaired or replaced and works as designed. Any holes—other than designed holes—in the Structure has no holes other structure. than designed holes. Cleanout Gate Damaged or Missing Cleanout gate is not watertight or is missing. Gate is watertight and works as designed. Gate cannot be moved up and down by one Gate moves up and down easity maintenance person. and is watertight. Chain leading to gate is missing or damaged. Chain is in place and works as designed. Gate is rusted over 50%of its surface area. Gate is repaired or replaced to meet design standards.. Orifice Plate Damaged or Missing Control device is not working property due to Plate is in place and works as missing,out of pface,or bent orifice plate. designed. � Obstructions Any trash,debris,sediment,or vegetation Plate is free of all obstructions trlocking the plate. and works as designed. Overflow Pipe Obstructions Any trash or debris blocking(or having the Pipe is free of all obstructions potentiaf of blocking)the overflow pipe. and works as designed. , Manhole See"Closed Detention Systems"Standards No.3 See"Clased Detention Systems' ' Standards No.3 ' Catch Basin See°Catch Basins'Standards No.5 See'Catch Basins"Standards I No.5 � � 911/98 1998 Surface Water Design Manual A-4 APPENDIX A MAINTENANCE STANDARDS FOR PRIVATELY MAINTAINED DRAINAGE FACILITIES NO. 5-CATCH BASINS - Maintenance Defect Conditions When Maintenance is Needed Results Expected When Component Maintenance is pertormed General Trash&Debris Trash or debris of more ihan 1/2 cubic foot which is No Trash or debris located (Indudes Sediment) located immediately in front of the catch basin immediately in front of catch opening or is blocking capacity of the basin by basin opening. more than 10% Trash or debris(in the basin)that exceeds 1/3 the No trash or debris in the catch depth from the bottom of basin to invert ihe lowest basin. pipe into or out of the basin. Trash or debris in any inlet or outlet pipe blocking Inlet and outlet pipes tree of more than 1/3 of its height trash or debris. Dead animals or vegetation that couid generate No dead animals or vegetation odors tt�at could cause complaints or dangerous present within the catch basin. gases(e.g.,methane). Deposits of garbage exceeding 1 cubic foot in No condition present which vdume would attract or support the breeding of insects or rodents. Structure Damage to Comer of frame extends more than 3/4 inch past Frame is even with curb. Frame and/or Top Slab curb face into the sheet(lf applicable). Top slab has holes larger than 2 square inches or Top slab is tree of holes and cracks wider than 1/4 inch(intent is to make sure cracks. all material is running into basin). Frame not sitting flush on top slab,i.e.,separation Frame is sitting flush on top of more than 3/4 inch of the frame from the top slab. slab. Cracks in Basin Walls/ Cracks wider than 1/2 inch and longer than 3 teet, Basin replaced or repaired to Bottom any evidence of soil particles entering catch basin design standards. through cracks,or maintenance person judges that structure is unsound. Cracks wider than 1/2 inch and longer than 1 foot No cracks more than 1/4 inch at the jant of any inleU outlet pipe or any evidence wide at the joint of inleVouUet of soil particles entering catch basin through pipe. cracks. SedimenU Basin has settled more than 1 inch or has rotated Basin replaced or repaired to Misalignment more than 2 inches out of aGgnment. design standards. 1998 Surface Water Design Manual 9!1/98 A-5 I APPENDIX A MA1N'I'ENANCE STANDARDS FOR PRIVATELY h1AINTAINED DR4ItiAGE FACILITfES NO. 5-CATCH BASINS (CONTINUED� , Maintenance Defect Conditions When Maintenance is Needed Results Expected When � Component Maintenance is pertormed ' Fire Hazard Presence of chemicals such as natural gas,al and No ftammatrle chemicals gasoline. present ' Vegetation Vegetation growing across and blocking more than No vegetation btocking opening 10%of the basin opening_ to basin. Vegetation growing in in►eUoutiet pipe jants that is No vegetation or root growth more than six inches tall and less than six inches present. ' apart. Pollution Nonflammable chemicals of more than 1/2 cubic foot No pollution present other than per ihree feet of basin length. surface film. Catch Basin Cover Cover Not in Place Cover is missing or only partially in pface.Any open Catch basin cover is closed catch basin requires maintenance. ' LoGting Mechanism Mechanism cannot be opened by on maintenance Mechanism opens with proper Not Working person with proper tools.Bofts into frame have less tools. than 1/2 inch of thread. Cover Difficult to One mairttenance person cannoi remove lid after Cover can be removed by one Remove applying 80 Ibs.of lift;intent is keep cover from maintenance person. sealing off access to maintenance. ladder Ladder Rungs Ladder is unsafe due to missing rungs,misalignment, Ladder meets design standards Unsafe rust,cracks,or sharp edges. and albws maintenance person safe access. Metal Grates Grate with opening wider than 7/8 inch. Grate opening meets design (If Applicable) standards. Trash and Debris Trash and debris that is blocking more than 20%of Grate free of trash and debris. ; grate surface. �-- Damaged or Grate missing or broken member(s)of the grate. Grate is in place and meets Missing. design standards. NO. 6 DEBRIS BARRIERS(E.G., TRASH RACKS) Maintenance Defect Condition When Maintenance is Needed Results Expected When Components Maintenance is Performed. General Trash and Debris Trash or debris that is plugging more than 20%of Barrier clear to receive capacity the openings in the barrier. flow. Metal Damagedl Missing Bars are bent out of shape more than 3 inches. Bars in place with no bends more Bars. than 3/4 inch. Bars are missing or en5re barrier missing. Bars in place according to design. Bars are loose and rust is causing 50%deterioration Repair or replace barrier to � to any part of barrier. design standards. 9/1/98 1998 Surface Water Design Manual A-6 APPENDIX A MAIN'I'ENANCE STANDARDS FOR PRNATELY h�IAINTAINED DRAINAGE FACILITIES NO. 8- FENCING Maintenance Defect Conditions When Maintenance is Needed Results Expected When C�mponents Maintenance is Performed General Missing or Broken Any defect in the fence that permits easy entry Parts in place to provide adequate Parts to a facility. security. _ �:: Erosion Erosion more than 4 inches high anci 12-18 No opening under the fence that inches wide permitting an opening under a exceeds 4 inches in height_ tence. Wire Fences Damaged Parts Post out of plumb more than 6 inches. Post plumb to within 1-1/2 inches. Top rails bent more than 6 inches. Top rail free of bends greater than 1 inch. My part of fence(including post,top rails,and Fence is aligned and meets design �� fabric)more than 1 foot out of design alignment. standards. Missing or loose tension wire. Tension wire in place and holding fabric. Missing or loose barbed wire that is sagging Barbed wire in place with less than more than 2-1/2 inches between posts. 3/4 inch sag between post. Extension arm missing,broken,or bent out of Extension arm in ptace with no shape more than i 1/2 inches_ bends larger than 3/4 inch. Deteriorated Paint or Part or parts that have a rusting or scaling Structurally adequate posts or Protective Coating condition that has affected structural adequacy. parts with a�iform protective coating. � Openings in Fabric Openings in fabric are such that an 8-inch- No openings in fabric. ', diameter ball could fit through. I NO. 9-GATES Maintenance Defect Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed General Damaged or Missing Missing gate or locking devices. Gates and Locking devices in Members place. Broken or missing hinges such that gate cannot Hinges intact and lubed.Gate is be easily opened and closed by a maintenance working ireely. person. Gate is out of plumb more than 6 inches and Gate is aligned and vertical. more than 1 foot out of design alignment. Missing stretcher bar,stretcher bands,and ties. Stretcher bar,bands and ties in place. Openings in Fabric See"Fencing"Standard No.8 See"Fencing"Standard No.8 9/1l98 1998 Surface Water Design Manual A-8 APPENDIX A b7A1N7�ENANCE STANDARDS FOR PRIVATELY h9AINTAII�iED DRAINAGE FACILIT7ES N0. 10- CONVEYANCE SYSTEMS(PIPES & DITCHES) Maintenance Defect Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Pipes Sediment 8 Debris Accumulated sediment that exceeds 20%of the Pipe cleaned of all sediment diameter of the pipe. and debris. Vegetation Vegetation that reduces free movement of water All vegetation removed so water tfuough pipes. flows freely through pipes. Damaged Protective coating is damaged;rust is causing Pipe repaired or replaced. more than 50%deterioration to any part of pipe. Any dent that decreases the cross section area of Pipe repaired or replaced. pipe by more than 20%. Open Ditches Trash& Debris Trash and debris exceeds 1 cubic foot per 1,000 Trash and debris cleared from square feet of dftch and slopes. ditches. Sediment Accumulated sediment that exceeds 20%of the Ditch cleaned/flushed of all design depth. sediment and debris so that R matches design. Vegetation Vegetation that reduces free movement of water Water flows treety through through ditches. ditches. Erosion Damage to See"Ponds'Standard No.1 See"Ponds"Standard No.1 Slopes Rock Lining Out of Maintenance person can see native soil beneath Replace rocks to design Place or Missing(If the rock tining. standards. Applicable). Catch Basins See"Catch Basins:Standard No.5 See"Catch Basins"Standard No.5 Debris Barriers See"Debris Barriers'Standard No.6 See"Debris Barriers'Standard (e.g.,Trash Rack) No.6 N0. 11 -GROUNDS(LANDSCAPING) Maintenance Defect Conditions When Maintenance is Needed Results Expe�ted Wben � Component Maintenance is Performed General Weeds Weeds growing in more than 20%of the landscaped Weeds present in less than 5% (Nonpoisonous) area(trees and shrubs only). of the landscaped area. Safety Hazard Any presence of poison ivy or other poisonous No poisonous vegetation vegetation. present in landscaped area. Trash or Litter Paper,cans,botUes,totaling more than 1 cubic foot Area dear of litter. within a landscaped area(trees and shrubs only)of 1,000 square feet. Trees and Shrubs Damaged Limbs orparts of trees or shrubs that are split or Trees and shrubs with less than broken which aflect more than 25°k of the total 5%of total foliage with split or toliage of the tree or shrub. broken limbs. Trees or shrubs that have been blown down or Tree or shrub in place iree of knocked over. injury. Trees or shrubs which are not adequately supported Tree or shrub in place and or are leaning over,causing exposure of the roots. adequately supported;remove any dead or diseased trees. I998 Surface Water Design Manual 9/I/98 A-9 APPEI3DIX A MAINTENANCE STANDARDS FOR PRIVATELY I�7AINTAIi�7ED DRAINAGE FACILI'TIES N0. 12-ACCESS ROADS/EASEMENTS Maintenance Defect Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed General Trash and Debris Trash and debris exceeds 1 cubic foot per 1,000 Roadway free of debris which square feet i.e.,trash and debris would fill up could damage tires. one standards size garbage can. Blocked Roadway Debris which could damage vehide tires(glass Roadway free of debris which or metal)_ could damage tires. Any obsVuction which reduces clearance above Roadway overhead dear to 14 feet road surface to less tlian 14 feet high. Any obsUuction restricting the access to a 10 to ObsVuction removed to allow at 12 foot width for a distance of more than 12 feet least a 12 foot access. or any point restricting access to less than a 10 foot width. Road Surface Settlement,Potholes, When any surface defect exceeds 6 inches in Road surface uniformly smooth Mush Spots,Ruts depth and 6 square feet in area.In general,any with no evidence of settlement, surface defect which hinders or prevents potholes,mush spots,or ruts. maintenance access. Vegetation in Road Weeds growing in the road surface that are Road surface free of weeds tatler Surtace more than 6 inches tall and less than 6 inches than 2 inches. tall and less than 6 inches apart within a 400- i square foot area. Modular Grid Build-up of sediment mildly contaminated with Removal of sediment and disposal � Pavement petroleum hydrocarbons. in keeping with Health Department � recommendations for mildly contaminated soils or catch basin sediments. ', Shoulders and Erosion Damage Erosion within 1 foot of the roadway more than 8 Shoulder iree of erosion and � Ditches inches wide and 6 inches deep. matching the surrounding road. Weeds and Brush Weeds and brush exceed 18 inches in height or Weeds and brush cut to 2 inches hinder maintenance access. in height or cleared in such a way as to allow maintenance access. 9/1�98 1998 Surface Water Design Manual A-10 APPENDIX A b4AINTENANCE STANDARDS FOR PRIVATELY MAINTAINED DRAINAGE FACILITTES N0. 13-WATER QUALITY FACILITIES(CONTINUED� . - D.)Wetvaults Maintenance Defect Condition When Maintenance is Needed Resuits Expected When Component Maintenance is Performed Weivault Trash/Debris Trash and debris accumulated in vault,pipe or Trash and debris removed from Accumulation inleU outlet,(includes floatables and non- vault. ftoatables). Sediment Accumulation Sediment accumufation in vault bottom that Removal of sediment from vauit. in Vault exceeds the depth of the sediment zone plus 6- inches. Damaged Pipes InIeU ouUet piping damaged or broken and in Pipe repaired and/or replaced_ need of repair. Access Cover Cover cannat be opened or removed,especially Pipe repaired or replaced to Damaged/Not Working by one person. proper working specifica6ons. VauR Structure Vault:Cracks wider than 1/2=uich and any No cracks wider than 1/Minch at Damaged evidence of soil particles entering the structure the joint of the inleU outlet pipe. through the cracks,or maintenance/inspection Vault is determined to be personnel determines that the vault is not structurally sound. structurally sound. Baffles Baffles corroding,cracking,warping and/or Repair or replace baffles to showing signs of fa�lure as determined by specifications. maintenance!inspection staff. Access Ladder Damage Ladder is corroded or deteriorated,not func6oning Ladder replaced or repaired to properly,missing rungs,has cradcs and/or specifications,and is safe to misaligned. use as determined by inspection personnel. 1998 Surface Water Design Manual 9/I/98 A-13