The URL can be used to link to this page

Home My WebLink About03699 - Technical Information Report - Preliminary � u� � �7 m CEDAR RIVER STATION PRELIMINARY TECHNICAL INFORIIAATION REPORT NOVEMBER 12, 2012 � �� ' i' °�,��- ��t.� �,/ � :�.��-:' � , Prepared for ��,:,, �� . - �; , � Cedar River Station, LLC a �. 15215 SE 272"d Street, Suite 201 ��` 'f �� Kent, WA 98042 �,: :,��r�;' ,_`r .`�,,.} ,� ;-�j. °': � � .'�° '� �� s,�`,��ti,, i1+� I Submitted by ESM Consulting Engineers, LLC 181 South 333`d Street, Building C, Suite 210 � / Federal Way, WA 98003 ! �; 253.838.6113 tel 253.838.7104 fax i �- � ;_ u�A � � - aa� � u 3 :Ity Ot Rent�rt �y�,esmcivil.com Planning Division � DEC - 3 1012 io��L��n2D Job No. 1320-OQ -008 n� ��i �S #3�9� � r � ' L� TABLE OF CONTENTS 1. Project Ovenriew ........................................................................... 1-1 2. Conditions and Requirements Summary ....................................... 2-1 3. Offsite Analysis .............................................................................. 3-1 4. Flow Control and Water Quality Facility Analysis and Design ........ 41 5. Conveyance System Anaiysis and Design ..................................... 5-1 6. Special Reports and Studies ......................................................... 6-1 7. Other Permits ................................................................................ 7-1 8. CSWPPP Analysis and Design ...................................................... 8-1 9. Bond Quantities, Facility Summaries, and Declaration of Covenant 9-1 10. Operations and Maintenance Manual ............................................ 10-1 ` Figures 1.1 TIR Worksheet .............................................................................. 1-2 1.2 Site Location .................................................................................. 1-3 1.3 Drainage Basin .............................................................................. 1-4 1.4 SCS Soils Survey Map .................................................................. 1-5 4.1 Existing Hydrology Map.................................�---............................. 4-3 4.2 Developed Hydrology Map ............................................................. 44 � Tables � 4.1 Developed Land Use ..................................................................... 41 , 4.2 Volume Summary...................�--�--.................................................. 4-2 i� � Appendices ( • Appendix A—Offsite Analysis System Table, Offsite Analysis Photos • Appendix B—KCRTS Output • Appendix C—Geotechnical Reports • Appendix D— Drainage Complaints and Map i �. � [ r, a � � � � 9 � � # :,t � _! �If t �r ,� i r i :7 `�; �,, � � � �� E ;i i a I .{ � , 1 _ � '�y / 1 , �� , �1 a � ��. � � . . �� _ � , . ? � � �� , � � • � � �!� " `� '� � �� 4 r f�.; ��f�v ' ^_ � %,��--�-�wx ._t � _ ._; 1 � � � , � � 1. PROJECT �VERVIEW The Cedar River Station project is a proposal to construct 3 commercial buildings on one parcel and a future fuel station on a secand parcel, totaling approximately 3 acres. The project is located in Renton, within Unincorporated King County, Washington. The first parcel (King County parcel identification number 23230-59210) is 1.47 acres located at 15221 SE Maple Valley Road. The second parcel (King County parcel identification number 23230-59211) is 1.55 acres, with no address listed. This project is situated in the SW 1/ of Section 23, Township 23 North, Range 5 East, W.M., King County. Please see Figure 1.2 for a vicinity map. The proposed project is located in the Lower Cedar River King Caunty Drainage Basin (WRIA#8)within the Cedar River—Lake Washington watershed. The existing property is nearly flat without much slope across the site. Both parcels are currently undeveloped consisting of mowed field grass. To the south, east, and west are previously developed properties. The Aqua Barn Apartments lie to the south, the Emerald Crest mobile home park lies to the east, and the New Life Church of Renton lies to the west. The onsite soils are mapped as Alluvium (Qal) according to the Geologic Map of King County, Washingfon and the geotechnical report. This soil is in classification group "D" with high runoff potential according to Table 3.2.2B of the King County Storm Water Design Manual (Manual). See figure 1.4 for a soils map. Please see Appendix C for the Geotechnical Engineering Study prepared by Earth Consulting Incorporated, dated October 1, 2007 and the Geotechnical Study Verification ietter prepared by Earth Solutions NW, LLC, dated October 19, 2012. The site will be accessed by an entrance off of SE Maple Valley Road and another entrance off of 152"d Avenue. The developed basin will be similar in size to the existing drainage basin. Stormwater runoff will be collected in catch basins and conveyed in a piped conveyance system to a stormwater wate� quality and detention vault. The developed site runoff will be released into an existing catch basin along SE Maple Valley Road {SR-169) and travel along a pipe/ditch conveyance system unti{ runoff enters Cedar River a couple miles downstream. See Section 3 for a downstream analysis. \ ( �-� Figure 1.1 TIR Worksheet will be included with the final engineering submittal. , ` ( ( `,_ 1-2 _� / , /'� �,-. �� ;� ��.. i�. ,� r-� /'. - ,-� ;-� ��, i•, �. - -� �� ,�-� — , - � � FIGURE 1.2 Vicinity Map (mapquest.com) :t•• ��,.� 7�r-`7xy^'� �.y� � � p�slC'-�" . -;.nl ` .n� –�'a'at=�4 .C?:� ��r�Tr,. `, r� �... t ! t� ` µ `��i�sC��, �+e' .7��C��:��at��::da'`�.'� �.4�,�"�`tripw f� A V� y ��#�'r 1,,� a f Mdlt� �'�.�.�. '�1b y,.�, M �'., u : � „ j �• cc �+1. � �#�'a�l�� .,� �'�'... �"� ' � D R�a # . V�� +�:��'W_''+u �'f � !c �� `� �'� ��' , � �.. �4, 'h� j S: " .1�� .p y�,,,. ,��pw � ., �' +��fkrCg..,,�,��"r+�DR � Yd �+��t`,:. «t�� . �� , '�r""'�� °t kr� ryny. a+r,. ,s � u � � y � • f�- �,� r f, wP`�y � �� fi �� r y � �� r� r'7j''�I�,.jp.,.,,,,�,t✓e�.. ', 3�{," !�";dJ ,�` e�{„ �" �'+,,.`w�,,i` ��y�''d"w` ,7 br�c,x?S',f��*Y",nyrJ'1r`� ,�r� p�4 �S �, '::� :.. ` ��"yr1�r��,� . ,.,,.,,_, ya��e�,iF �'A�'� . ' +.3�„ . ,y.- � � y�, .. �,r, . j't^'SE,t` y'. �. . �i � '�ti99 �. � �N +'^* s C � 'S� �� r � '�'..- .� .ri� •� R , ..��y.. `�, � ' .. . .. `�;. M n. . � q�, �t' :.-: �.:r K'� ';�." 1 �1# � '�+�K� �� ., � '"y ..� p ,,.. ..� y�'�� Q 1 'i�(M N7 , �i;� . i :. . � q'�. � .. �x ' M .,e.� Y� � ;y '�^, y�,,yr�•.,_ E'1� � � 1 �` �3 �.,,�,�� :"�.. c'k` :g��,.�, .�':�' ,y�: { ,�*. , �^�°�'` �' s ��a '��'�i �ti� ��^ �.� �'" - %% ,x� at n� y � ry� '4" �� ,� -...�r�.,.��, ,�� ' � � : . i A ��.,ati tl`4� ; � �*'.r�,�� r��; �i,p,�,�� : y��t21�,:�.., ��q .affJ�p � '$r![ � t �.Y ,'.,�. �� . y�' �"� s �� '.'S`.Jm�, �� '� - 1�'.�`.i�.,.1�r'�'}�it�t'a � �. ��. ,.•�[ �'y� ' � � �� . F '1Y; y Y.a', ! t'� ♦�_ *� „`5 �,«�"{ f'''_'f`" .;� •l �:X ��.�. I� y� w. '� x A + ..�y .'7��F a. `�r .� �f'f�{R'f�r4 ,�,. �^'�,,i>�' y��„" �� r �� r"^ ��..ti� t''" 'i . w.p� �++ a., 7 .y- ��.�,t'i � ,�' y= � � .:��g4� �1�� ,�M1'� � �� '�t iM 4S��-� +r •.� LI' �k��I q ,�,�,., � � � ,: �� ' � '�' �i r§ ` €�, �. �r � '# + ��h,.A r,•ti � ` �,5. � � �� !"•'?��,�•�u ��i7�6: _ �� rr F w, r, +�,+ �� %rrr it� n.,q�y,:� r 1�� 'hT� � s „y 's'�,.�. zw�+: .i.}*� � I t ' ii ' w Fk � ;. ;p,; G �; � r :,�, �: �. �..w � 1 �� r�S, � �Iw, "��,� �� 'F� �.�'h.� .II I� r:.V �"� .:�k,t .t�`.� .r !� �„ �dt .... .r... •:�..��+��'�n�9��T' i .,t F vi�. •,.'r . p >. � • ` „'M' .ti' �'6✓7� � � � . .� ., �� .: _�4. �� I ��i..`�u � ta+�.. Y m+.;': r �a++.,�'}n ..y h.-�.� " ;�'';t,. '�� ,a,;� � r�;� ,,y�� r 7 *�. , .��y'�'. . � � �. �..�� .. i :JF��..�;:�S3d.°,::+��. � �'..r�i"�;�(.�'.,.�+ '1C.��y �_ �. ,. �:. , ::. '��`�'.iG46,n 'ew_:».,_ ....,.r�3�a,�ls:v. r! l._7^ -, .. 5, i 7 � ' � a ' ' � i �� . .�. �� .. WI�SKW6 � �;�� ,,a� � � , � �. �,�. y .�� w � � � " �_ � �1�� I1 ,� ��:. �; , .��. i � . § i' . ti...� �O , �""F ,�1 �''��•' ' '�� . oQ •�� :..�. � � R oN ' . �' ; � Q � . � } ?i � 'I� �� . � � SJTE ` �. _ �, {� �, ^�' � ti "'_..__' ,y F., � r �s:.,,� t — �...�1 7`..7 .� '� ' � E ��'r...�f t t f ^r`j i�� /+ � ,� � .. f'.! ' � • � � ' • � � , ' . � • t, ! �• � � ` � }Y,= • . , �` -� a - ��w-r.� � ___ '- r i . •� . `t.�' ` ° . � � ; �E Dtl Qtv 'R i; � - � ? �'`u, , G . j� �� ` �' ' � , r� �A�N/�v E ' . a` . � � ' �-� , r -,' ,a � 5 ��'� • �:�. � , �: � " a � � ' �� G' � o � ��T h - 98 i � `-r JOB NQ. 1320-005—OQ8 DATE : 03-18-08 DRAWING NAME : EN-05 DR,4WN : BML CONSULTING ENGINEERS LLC � I � I � I � I DRAINAGE BASIN �„�,�, �zu��-a„� www.esmcivil.com FIGURE 1 .3 Civil Engineerng Land Surveying Lantl rwnnmq Public Works I Project Management I Landacape Architecturo /. !�� III \ � �� ,f � �..., ri l, � �� - . -��,� -. .:,..f 3 �� _ � � � ��:� � �, �� _ '� � � � `�ti , � ;� � ` � � ` E �� St N 4th .Sf �� f 2$tf7 S�`�:�:-,. � �� , ( -�� _ _ �)r �S.a """ ��. ' � {'�1�Q C� � � t �� . ;:� ,/ ' ..::- � r. � • '� � ... . . . � � � �� '' �"�. � O — ,r{ -.._ -� , - - �� ,�ir • � . � � � � '� �rl .�iM = ( � �tr� ,t ' _ �� •a� ` �`�'F. t_�-�'�� .�.�'r� (, ., .,. -: , . y ` . � � 0 . � ,_� f �J C'C��`* o ,:. ..�.,---- St-�-� --� �q , � _ � , � _ � �+ � � � : ' � . , �, �� _ � � `� � �_ �� ,� ,, � : .__ __ � � � � -._. - , . ... � .' - . � . / Source: Geologic Map of King County, Washington ; � �«,o�.ar o.vo.n.t►+oto�+��a-F.�a.�oxa i Q m-u+amnea ana Q od-�ulwl�ao ..� (�'_`.>;if-Nr9�tl�111 QOw�-�eerytwtun � �_ �. �:�Omw-Mabwdfaqe Aepotlls �Qom-O�taoia m�EOaw Q aa-ur�Caoe aepmi� Mpoatb oI Fns�e GlWatlon�PNh4►oMr) � . o�.�� oQK.��a i :mn-��«� �_��.� , Qow-v,elwweepoas [Onau-v�snon�e�raww.xyralroaaaaeq»a�poa. � O�-Peat �Qac-SMt�on rettltlarl tneraD�lOd GlpO�t Q GI-Laloe depo9lb ----`QMs-Vh�llon�lad sad�Oo�YWndePmb � �OG-BeachAeQoelb .--�- QN-Wp�mfoe-ca�laatlpasl6 .. �Ot71•BC�tlI d'.�1�dIM �QM�I-YAf1011 i0O�00tYKlAlpOlil,R1Cl�Y9 Q Cl�-T1d�M OeDa� i---�Ode•14�hon iQ aonhad depoYb,elaf ( JOB N0. 132Q—OQ5-008 DATE : 03-18-08 DRAWING NAME : EN—Q2 DRAWN : BML CONSULTING EN(�IMEER3 LLC 20021 120th Avenue NE I • I � I � I SO I LS MAP Suite 103 Botheli,WA 98011-8248 Fmfnl itr (AA�sJ�et�s �� (`2�"'�°„' FlGURE 1 .4 www.esmci�il.com �� "'-706 ClvTl Enyine�rinq L.and Survaylnq Land Plmnin9 Publk Worlu ` Projsct Nanaq�met�! I.undecape Meli�tact�ro � � `� 2. CONDITIONS AND REQUIREMENTS SUMMARY ; Review of Eis�ht Core Reauirements and Five Special Repuirements The following comments are a review of the Core and Special Requirements per the 2009 King County Surface Water Drainage Manual (KCSWDM): Core Requirement No. 1 Discharge at the Natural Location The existing property is nearly flat without much slope across the site. Both parcefs are currently undeveloped consisting of mowed field grass. Currently runoff sheet flows to the boundaries and flows around to the northwest corner of the site then crosses 152nd Avenue SE to the west and continue towards Cedar River. Post-developed flows will be released from the control facility on the site and connect to an existing catch basin on the northwest corner of the site before crassing 152"d Avenue SE. See Appendix A for a downstream map and Figure 4.1 in section 4 for an existing hydrology map. Core Requirement No. 2 Offsite Analysis This submittal includes a Level 1 downstream analysis as described in the 2009 KCSWDM. See Section 3 of this report for a descriptive narrative of the downstream conditions. Core Requirement No. 3 Flow Control The proposed site improvements will introduce more than 5,000 square feet of new impervious surface area; therefore an onsite stormwater flow control system is required. Le�el 2 conservation flow control will be used. See the flow cantrol application map in Section 4. Core Requirement No. 4 Conveyance System The conveyance system will be designed with sufficient capacity to convey and contain the 25 and 100-year 24 hour storm events without overtopping. A detailed analysis of the conveyance system will be included with the final engineering submittal. Core Requirement No. 5 Erosion and Sediment Control Proposed erosion and sedimentation control measures will be designed in accordance with criteria set forth in the 2009 KCSWDM. Erosion and Sediment Control plan will be included with the final engineering submittal. Core Requirement No. 6 Maintenance and Operations The Maintenance and Operation Manual will be included with the final engineering submittal Core Requirement No. 7 Financial Guarantees and Liability The King County Bond Quantities Worksheet and facility worksheet will be included with the final engineering submittaf. Core Requirement No. 8 Water Quality The developed site requires basic water quality treatment, which will be achieved within the stormwater water quality and detention vault. 2-1 Special Requirement No, 1 Other Adopted Area Specific Requirements This project lies within the Lower Cedar River Drainage Basin. No other adopted area specific requirements pertain to this property. Special Requirement No. 2 FloodplainlFloodway Delineation There is no 100-year floodplain that is related to a large body of water, i.e. lake or stream, on the site. This special requirement is not applicable. Special Requirement No. 3 Flood Protection Facilities This requirement does not apply since the project is outside any defined floodplains. Special Requirement No. 4 Source Controls Water quality source controls prevent rainfall and runoff from coming into contact with pollutants, thereby reducing the likelihood that pollutants will enter public waterways and violate water quality standards. A stormwater vault will be used for water quality treatment of runoff from the paved surfaces subject to vehicular traffic, prior to discharge into the existing conveyance system along SE Maple Valley Road. Applicable source control will be provided per the King County Stormwater Pollution Prevention Manual and King County Code 9.12. Special Requirement No. 5 Oil Control The proposed Preliminary Plat is a commercial site. The project's average daily traffic is expected to be less than 100 vehicles per 1000sf of building per the Traffic Impact Analysis. Petroleum storage is not anticipated, and s#arage of diesel fleet vehicles will not be present on the project site. This does not qualify the site as high use per the Manual. Therefore, Oil Control will not be required for this project. z-z 3. OFFSITE ANALYSIS III The following Level 1 downstream anaEysis reviews the drainage system a quarter mile ' (1,320 feet) downstream of the site. ', The five tasks outlined under this review are: I Task 1 —Study Area Definition and Maps Task 2— Resource Review Task 3— Field Inspection Task 4— Drainage System Description and Problem Descriptions Task 5—Mitigation Task 1. Study Area Definition and Maps The project is locaied within the Lower Cedar River drainage basin. The drainage study area is approximately a one quarter mile long path encompassing the site's downstream corridor. See Appendix A for a topographic map of the site and a map of the basin study area. The site is undeveloped surrounded by SE Maple Valley Road to the north and 152nd Avenue SE to the west, with apartments to the south, a mobile home park to the east, and a church to the west. Task 2. Resource Review The following resources have been reviewed for the downstream analysis: Adopted basin plans • The site is located in the Lower Cedar River drainage basin (WRIA#8}. Sensitive Areas Folia{See Appendix A for a Sensitive Areas Map) • Wetlands—None mapped • Streams and 100-Year Floodplains— No apparent streams for floodplains. • Erosion Hazard Areas—None mapped • Landslide Hazard Areas — A Landslide Hazard area has been mapped for #his area. However the downsfream path of the natural discharge point does not , appear to drain over erodible soils with slopes steeper than 15%. • Seismic Hazard Areas — None mapped • Coal Mine Hazard Areas— None mapped. Drainage complaints and studies King County — There are record of downstream and upstream drainage complains in the area of the proposed plat. A table and map of these are included in Appendix D. None of the complaints are current�y open U. S. Department of Agriculture, King County Soils Survey • The soils are mapped as Alluvium (Qal). Alluvium is described as moderately sorted deposits of cobble gravel, pebbly sand, and sandy silt aiong major rivers and stream channels. See figure 1.4 for a soils map. Wetlands Inventory Map • Wetlands—There are no mapped wetlands on the site Erosion Hazard and Landsiide Hazard Area Map • There are no known erosion and landslide hazard areas ansite. 3-1 Flow Control Applications Map • The site is located in a Level 2 conservation flow control area per the Flow Control Applications Map. Water Quality Applications Map • The site is (ocated in the Basic water qualiry treatment area per the Water Quality Applications Map. Task 3. Field Inspection A site reconnaissance was originally performed on February 4, 2008 for the purpose of analyzing the proposed project site and its upstream and downstream corridors. The weather conditions were dry, 45 degrees Fahrenheit, and partly-sunny. Please see Appendix A for downstream reach locations. We believe that the upstream and downstream corridors have not changed significantly since this date and this visit is still appropriate far the purpose of the Le�el 1 downstream analysis. Upstream Analysis: Upstream runoff is anticipated to exist south of the project site from the Aqua Bam Apartments and east of the project along the south side of Maple Valley Road. Runoff f�om the Aqua Bam apartments is directed to an existing conveyance system along the east side of 152"d Avenue SE. Runoff from the east along the south side Maple Valley Road is conveyed by a large ditch. An 18" stortndrain pipe picks up runoff from the drainage ditch and joins up with the existing conveyance system along 152`� Avenue SE at the corner of Maple Valley Road (SR 169) and 152"d Avenue SE. -:,,�;, _- ' ��` �� ; , k�i1;6 , . � , �,{ , 1;,'. •, .� - ,, � � � � �� ,; .,�;• - f" , 4,� ' _ �� F _ _ Y �'��`4 �•�� _ .V{ _ � 4 yi `�t • t� .'l �-:c.Yl� 4� �Y � ',C 1�� `�kj � F + `l�� ,t ��t`-. . � . p '_ �]E�i S. ;�'�� /` �_ �J'�.a� i� .-- �,,: - � ; �. •� a ��`.r s �� ,,r. `-►.:��.,.�.;� .,�"' � -i:'ci ,� �� - �..��, r.:�. _ a +� � - a - s , '# +�� - ::.F . < � ' �� _ � f.'�� }.. -- '�� `� ��,, .,Q,; -:�+., ,�.;#.�-� ��.. �► ��,,y�i,�.'S'��i'-.- +o- ":t' `-�sr �"."` �"�.';��. � �� - '��'�� ti' �a ' • �T .p ��€' �, 3��` � � i� � ;� $ °v ' ��!��, _�i�;,-�-�� .-��_� -_- _`-��'.$'�.,'��a`� ----- � s_� ._..._�'�.��'.� .,':�''�"'•. �-,t�4<;��,",�F_..'�i.p,'��. . .J.�..�.... �. w �. ", .,i ��y .��c� Uyl: ivvn. �� v ., .. v�rGsi CJi i ii:C; i ..i�.. .�vtn...:c.I�.� of the project along Maple Valley Road. Drainage ditch conveys runoff from the southern half of Maple Valley Road 3-2 Downstream Analysis: Runoff from the site gradually sheet flows through mowed pasture to the boundary edges of the site flows by shallow swales ta the northwest corner of the property. Slopes across the site range between 1 and 5 percent. � I 1. I 'v`�3�"� �.�''.�.`�' 3,t �.� x �I i . _. '' .. .k�c, ,-� °� �I a:. �. -� '�.. . . .:- � ��.e'S�" `�r-��. 'i . _ . . .r _ ■}c_- G t � f" .Ii . I � . . z• � r . r' _�.-. - �_.; _"'�_ ' _ I � ,_i�;�1 , _ � ' ��' ' ;��" : r � �� 'a � :� � �i:�� * :�ig �'. '1 �g h a I '� �� 1 � �y �I�� Ti1 5: ;J ' . .+ � ` ' �y�,� � ?� �' f 1 4 +�� ^f� "��.,y��* �x} ...'� �� a .$ +��+, - �� y .�.�� #.� _ :y� �S? . ,� Project Location: Existing site conditions, looking from the northeast corner of the project site towards the southwest corner. Reach 1 0 - 140' Runoff from the site is intercepted by drainage ditch sloping west at the corner of 152"d Avenue SE and SR-169. An 1$" Stormdrain pipe picks up the runoff where it joins with flow and 152"d Avenue SE and is conveyed under 152"d Avenue to the west side. No flow was observed at the time of visit. Discharge fram proposed deveioped project will connect ta the existing conveyance system at the corner of 152"d Avenue SE and SR- 169. - � 1X;�t��: �e,, 4 i s�,, j � •' ��:, 1 �� --�� ' '� -" - �`��.�„ �_ � r�� `� _�rc a -��.�--�..� --�.�...r S� C _ " �y .. ST'.. _ �� F •�ty.. �� "-�f�a.�fY a` - ��; � �� - �� - �� . "'. �h { �� A �j �2, 2 �� ,.: _"iy��r'��}�v T .r^ F � �«��.��t� a _ �`"�'� � `` ' �,�'��"r*i,-�`;�� '� '.-.�' ' �" � .'��.•�- � �"` ,� _; p.t' � ,A .��t f �' �� ---� ��'k�l�` �F-� ' �� w��-� � ~i.i�a�Y..��`. - 'TF`�r.�_` F •�-a� .�J"y��-,�'� ��i� j� . �� • � i��i+a��.'�� Reach 1: Looking west at 18' Culvert under under 152"�Avenue SE 3-3 Reach 2 140 —51b' A grassy channel continues to carry runoff south along SR-169. The channel is approximately 6' wide on top, 3' wide on the bottom, with 3:1 side slopes. Standing water was observed in portions of the channel. � .� f: `� _--- _; ;- ; - ; :� � .i i . . _ — __ �..4�Y�.... S� � _ ��r � � .t�t- i �.- � .. �". '�'1�`. -__ . _ _" �'� y _ a �..4�:- �' i ��_ �n,<�-�.�- � � � _ - . .M1 �I�� i !"� �,--�� .!t _ � �. . 1 .�� 3'.f, ' �: ;��.N--i �� u� . ��. ,�i,. er-�-'_ , . '� ��.� � �..i _. _ .. � - � -�� .. .. k _— : . ---- Reacn 2: Grassy cnannel along SR-1 e9 Reach 3 515—600' Runoff at the end of the grassy Channel is picked up by a 18" SD culvert and conveyed to Madsen Creek along SR-169. Culvert is shown on WSDOT as-built plans but appears to be buried and cannot be seen in the photo. S� �T��,.. ,�� ? ,�'.i. _ . " ^'� 4 . �. � � L �-t �, 1 �.1,� +'r'Jdy� � 'Og� ��5'. • r � _ �. �'� Y�tIT �� d�` a �.iT�r ��.fY ��,��.�+i ? ! . -..n -- y u��• _�t ,�,r .� • p� y aK i)y�- y�' r„:� � �� . J �� s�� ..i � d-� ," ,. E�' �� _ ,� f'.,`S, � �,t�.,r . _ti- � .-^ �-¢ 4 i.y eF t�•�7�+'rsr'}*`.'. ,_.- g i .� �:: • .. .. �. ' . . t I �.� � �� . - '.�' �� i:--- _ �" s �.r � r'� .�. . . i , K .. Y .. f r ... �.r..�:. - a. ,,s . ._ .�." tZx:"ti .;'�`-�* � �d ��F� y�.lr f�,a- w,,,. . .�r"7" Y �!�`� k.rc.,C �n�'',�r . � _ .'� �,- ,ti �.�y/c{K �t �' t �' z�, r�„ t ::t; t r� :�. °� .�"�. }� � -�-,� ' ,... - .�i�fi: ��° -, ,��- 't"�,�. �� ,r�. :.0 ,�'$" #: t� _��t-'[ +�' ��,': �r 4�F �3'.. y . Y,.�-T ��a , � ^' .n.'+�' '�L Y s� �. g � �c�j� -, r ��. ' I r �--' ir - , i� � �!� �. .fy,d, � .. z�' ��- '4 t �.� < "w��. -7 f 1 s,- . FT E �j� -� 79-J � j�� . - ' �}� . iE .-,� ,.� � �4(,,, ��h '� •_,tl..g 1��✓�2Y `Y+y' If �h�x� 1 r �``��` � �-fw.'a 7^r`�`1�F� ��, �� '.'��f` �,a'Z .�,�..�s d -s,�' � �e y . _ . : . - � _ r e"t"* �w�."'�}'`' q. � y � �. - � ti1r' ,4,sxrr �.-� -:� ; � i +1.�. Yl r�� I ��,��-�� '�.a�+�`�� o a:'^ -s v-• "h � �� s ., �t�r-r.: -ef ��fr ,� .:r �h. ..� �,re � .a 1 .C,,t �'i s-+ ��' +�� t � a< �� t � x r 5��' �`f..� 9r x F�r 4k��.�s r�: : _ '�i�_ .��.t _: �r ''�;LC }1�"':� ��'+ f �i � � � ,�'�a!`i+�.j r: yes>. ^�.�t .,k .:i��.. �� '��,,�§�jt''�`..��ry.." �E'-.' F�z�" v, F "'k��rt'' �'�q j,��r' ,,rS'�' � !_: �".��` . ' `r��.+�,�, "+P'�z.4' �—^' i'3b.,��s �* i�' �� ,��,y _ �` r +,� i r�^ +�SR' y��f�"� �GE[ �y ,t t i- � �A..� �-�,�� .:�� Yr� +b.`. .��'' r _, : r<5�`�,, ` +,,- �'- s�`. _ i Z?"'; � - :-`�' tiy_ �'`�`�:i%' Reach 3: End of grassy swale along SR-196 looking west. Estimated location of 18"culvert. 3-4 ��, Reach 4 600 - 1050' Madsen Creek, a meandering stream, continues to carry runoff west along SR-169. The s#ream contained flowing water approximately 2 feet in depth. The stream appeared ta be in good condition and is surrounded `- ' by trees and brush. •� 3� ,j��9 i�� ,��! V��^�*}•,�1 �f r � I'T��fJ .sr r �.�C;� � f ':r r� � �, �' �� " r .. 'TI,}�{1 ..�`� �� 1:�nd"sl�..;� `.. fiJ -i - 1 .� .t�'.�i`} r�-�'�`f�r.' .{ L. 3�•,,�3.'Sv': ? _; �JJ'3'i .- s l r /�s �s � ��,�,' :� �'r��',� " v '' S-r9 r � ' `� �F'" '�"` �� _.�i rS�'�. �� /� �.4, ,34 �'�. . . � '* 1�� `� � '� � . ,� s� y ,� , }Ki � .:�� I �-� �.: i �"r,1' 4 2 �"� nf' 1 `_ Y�y...� Yf � f ; � �� f. � ' � f �� w� .�� {r Y S� ` � F q Y.s��j�3.,,4�„i + _ yf �� _ . ' �4 �� t�»�'� � ��r x�' F� � -�'�r . ^. ! ; � . ��- t y�'w'�"`�„�'�k'�'.-F��"r��'-�� u., � �� '�'� �.�>r �r`,d/ . 'i �'.F Ai � � �� .. -i�' - S. y�� . �``�� ^ "�`��:�f�,`��f _ �� j� �� .�.: � :� ��'��t�' + + �t�+,if•� 'a >�'+ � �h��7�.',��f,� �;r � 'a 1; i�} � � 4'' i' aS� "^� .. � L��"�� . �":''{ ,��+� .� � �: � � r �rr � 4..:�•y��, X:;�� . � �..� � 4�: ''�� .i ��. �. / . : � g �• �{ � �� . . / �F,wK'� / �„ t � t .y�� '� �. �� ...�—�--'7"�-�^ '�j �� _,;°°'�yp�; y �,'t� �,� .T.`. •r ��,1 �. : -�a y �;,x.� ar- gyt"} � ��t. �� . '�li f� �M� � �� ,.,�� 7` r� r.,e� �r�� . � �'c � T- � T�,�„��< 4�� {'z� Jf'>!=£^� '„ � ��. - ''��,, `. � � ` -- - - .�� E-�...� �V'�+�} �-;' 4 `,J;f,7�t,{,�' ..4R-_ t`�„ " =� Y i#ila '#+t � +' ,p'.� � %•5 t .-.�d�_ �i1i' c . Reac�� - : : SR-169 Reach 5 1Q50- 1140' Arch Culverts, 24" x 33" CMP, pick up Madsen creek and convey flow northwest towards SR-169 = Reach 6 1140-1300' The arch culvert then opens up to a constructed ditch along SR-169. The ditch is approximately 3 feet wide and feet deep with observed water about 2 feet deep flowing through the ditch. , . A .,,4 t.��. ,� -. ' SR5% . '� / i e� � �.t ( � !'a..: \ :�' ` . (' �� f�each 6: Constructed aitch along SR-169 �, � --� Reach 7 �'� , 3-5 ��, 1300'-1435' Flow from the ditch flows through a reinforced concrete box (RCB} under SR-169 to the northem side of the road '� � ;;� • :�`��...� `:� ��- � ,�5�'�11FAII! . ..�}�� . - lw�w...........,,.,�„ �'1.� i'si3 �`�•�'�} �I�!��'� r ,� t- ,e ,� �_}�� 1 ?�4 4�,''��y•,R.� '�� [ �� 4 '�'T�-��,� i; . � ♦ir.',, Ka .� � . . � � .�{ � � . y � t�A+ �'. S �r7�{ i '�� :y � T 5 ,;' �' .a�g, ��,¢ �' t �� b � , 'x3f. �-..5 � �j�. ��..;,� '`"„��.'}.�y,�3 i��4�r �'�.T 4 s .#..- -�a3 4.,7_ C',f,f- �`w Y. ��,�l�s{� � '' ;�c ., �,�� ; `' � `�,�;'t` �;.�:'�. a � .g's- S�'y ' �..�i�- S ;y '�J� y _ i ��'� ._ � �' N q ac-:.� b �{�-. � ��'.� . t�� ' `�f f�.r[`^ .r`� �' .� •�v .., �� .. ) '��p��if}+�R{k�N C� �;�,� '.� a - � ":`��UI-.:�� :t •I � }`,t l�tl:r'�;� � �r�va,Y � �:. A.tA.�s ��y.f��y � � �i�� 7�� F �`'�gq ,�.!C��.� � -�,' k�•' �`�.}��i C,�+`�,�,.a �t fy-�"f��ri � r �� P�\��:N'I�a��'y� ' � ��- � � � ,.Kr�� -.'� ��C�,�.:��J�1S�'l � � A� - � "� ��e�'�1��7�'�� 1��V^r� ,�� I t � ''t¢�_ �'�� *y�d�ti�� »y�,��i/� ��,�;�,,a,�'��;��47 � 's�Y� �eS� j�t�yE....+ ';.�,��'... :�..,.�. A��t�a�:: �_'r �.�'t ,....Y.�.i e:.V' ��L: . ......_._..'ii Reach 7: Reinforced cancrete box under SR-169 Reach 8 > 1435' After f{ow reaches the northem side of the SR-169, it continues down approximately a half mile until it drains into Cedar River. 3-6 I Task 4. Drainage System Description and Problem Descriptions During the site visit, there did nat appear to be any problems with the offsite drainage system except of the potentially buried culvert end along SR-169. However there did not appear to be any baciced up runoff at this location. The drainage complaints were also analyzed for this report and are included in Appendix D. The drainage complaints were originally reviewed in 2008, saon after the site reconnaissance on February 4, 2008. Since over 4 years have passed, an additional list of drainage complaints was obtained. None of the drainage complaints are open or applicable to the project site. The proposed development should nat have adverse affects on the existing downstream flow path because the complaints were either regarding maintenance or were not at or downstream of the project site. Task 5. Mitigation of Existing or Potential Problems There does not appear to be any existing or potential problems (other than standard maintenance of the drainage system) associated the site. The site will have conservation flow control, which wi{l restric# the flow of the 2- year release to 50% of the pre- developed site. 3-7 � i ' � i,. 4. FLOW CONTROL AND WATER QUALITY ANALYSIS AND DESIGN The stormwater detention and water quality facilities were designed in accordance with - the 2009 KCSWDM. The site is required to have Level 2 conservation flow control based ' on the Flow Control Applications Map. The site requires Basic water quality treatment based on the Water Quality Applications Map. Existing Site Hydrology(Part A) -- The existing project site encompasses 3.02 acres and currently undeveloped consisting of mowed field grasses. The NRCS soils map, Figure 1.4, shows that the site contains Puyallup fine sandy loam. The 3.02 acre pre-developed area was modeled as till forest - using KCRTS to determine the respective pre-developed runoff amounts. Please refer to Figure 4.1 in section 4 for an existing hydrology map. Devetoped Site Hydrology (Part B) The area disturbed for the proposed development is 3.14 acres, including frontage improvements along SR-169 and two driveway entrances. Of the 3.14 acres, 0.19 acres of impervious area and 0.50 acres af landscaped area will bypass to the existing conveyance system, leaving a remaining basin area of 2.45 acres. These areas wiil bypass the s#ormwater water quality and detention vault because of the existing topography on and adjacent ta the site. However, the proposed developed basin will include the bypass impervious area (2.45 acres + 0.19 acres = 2.64 acres),' in order to ._ over detain and over treat in the stormwater vault to compensate for the bypassed area. The developed basin will contain 3 proposed and 1 future buildings with associated -- parking. The respective impervious and pervious were determined based on the proposed site plan. Including the bypassed area, the proposed development will be 78% - imperrrious of the 3.02 acre property. See Figure 4.2 for a developed hydrology map. Table 4.1 Develo ed Land Use Land Use ':. �` ;�; Area ,��:�, , - <F' A� :Z:: . _ Disturbed Area 3.14 Pro ert Area 3.02 B ass Landsca e Area 0.50 - B ass Im ervious Area 0.19 Basin Area"` 2.64 Roofto Area 0.67 Parkin Area 1.61 Basin Im ervious Area* 2.48 Basin Landsca e Area 0.16 '`includes bypass impervious area Performance Standards {Part C) I� The site requires Level 2 conservation flow control. This requires that the developed site discharge match predeveloped discharge rates from 50% of the 2-year peak flow up to the full 50-year peak flow. 4-1 The conveyance system capacity standards require that the new piped system convey , and contain the 25-year peak flows and that the 100-year runoff does not create a severe flooding or erosion problem. The conveyance analysis wil( be completed in Section 5 of this report during final engineering. Flow Control System (Part D) The detention portion of the stormwater vault was designed under Section 5.3.3.1 of the 2009 KCSWDM to provide adequate volume to discharge flow under the Level 2 conservation flow control conditions. The facifity was sized according to HSPF methodology using King County Runoff Time Series (KCRTS) software. The KCRTS output is presented in Appendix B of this report. The stormwater vault will have a primary control structure designed to discharge stormwater per Le�el 2 conservation flow control requirements, the flow control system utilizes a flow-restrictor tee with multiple orifices. The detention portion of the facility requires a minimum volume af 45,486 cubic feet. An approximate 7% safety factor has been added to this volume for a total of 48,600 cubic feet. Further detail of this facility is shown below in Table 4.2 and will be provided with the final engineering submittal. Water Quality System (Part E) The proposed water quality treatment for the Cedar River Station project will be provided within the stormwater vault. The water quality portion of the facility requires a minirrtum volume of 11,619 cubic feet. An approximate 5% safety factor has been added to this volume for a total of 12,240 cubic feet. Further detail of this facility is shown below in Table 4,2 and wi11 be provided with the final engineering submittal. TABLE 4.2 Volume Summa VAULT MODEL PROVIDED POND FUNCTION STORAGE DIMENSIONS vAULT VAULT INTERVAL �ft' VOLUME VOLUME cu. ft. cu.ft. Water Quali 103.50-107.00 60x51x4 11,619 12,240 Detention 104.00-108.50 60x180x4.5 45,486 48,600 � Freeboard 108.50-109.00 - - - 4-2 s �-•_��, _ `104.73 12"Di W} n � p � �S�CB • --� - • �E_ ----_-: �. � Q R!w1=105.14 "��_.�. . . I � iE=i 03.89 �2"DI(S�) .St}CB --._ ., '��-.,,_ •�` �/�I7``'- -- �It,�=105:9� ��_ . �, ' _ uCi ��0 .:.�.,_::y_rA;�:,. fE=102.79 12"Di(NW) .�� . . •`�_,,`- . i _ � a w i_ ^.�. i�=102.74 12"D3{SEj � •-.� . � . • ��. ` , ;,.,, ,, . . . 1 . �;-• S� ��, 1'-'�-�,�, . . �••� .� `,�1 . ,�,�, PK I�lk�� , ��' , � �C ��.,,;,� �TON M - . _ ._� ' �� .� �'��.,FR ! , � � \, �$n��, i':.,'.`.:,`.�':`; . . . � . ' . `'- ��--_�^ • �fs� �� - _ AP�E --,� -� _�-�:.. �� `��,� - -- --_. — -=-'�-- '--___._ ��--�=�- Vq�� ._�, � , G �� ` � �' },�-- �H ' • . �Y Ro • � `�. . '- ` \ � � -�,. '�\ -_. �. -"�;;s...� ,qp ��-- . . � � � � S� � � ,5�--'--�`�=-..._ - __- � . ' �S� 7�9}�,`1"��`�:�_.� . ..'=-_�� ''�� Q � , �t 18"DI '" '""-.� _-`. . ] � IE=103.Q3' .�� -=..:� _`�"'�'_�` ``--�� ''`-� � � � . �� `'� � � � � � � �� '� `" , - '-�-.""--�._ �..�'__- , � . ` � � f RIM--19�°97 ---�-`" ,',"'�=_-''---��`� .��., 1. �---_- �" .�'�, �.�� . r� � � ' � IE=1l32.97 12"DI NW) `° _ �`',-'"-'�_ `7 '-�_-...�=.�_- -` '�,� ``\ � �'�-_� . . .D�GB�� U� Q f � IE=1�2.32 18"DI W) _=-�-;'`-��__ �¢'.:.�. -"':::. `ti � � �'E�!�4L'— � L.. J i VJ S � � IE=102.32 18"DI S) - _ ''_-_-Y _ 5�. �.� O � �`` � � ~ `~ ` �'` � j IE=1Q2.32 1 �� _ �P _�-��_-:,._. � . . Q} Q� � i 4. �,� "'"�_'` ' _ � -- - =��`�`,�,1_ r18" � . i � � _ 1 1�„ . _ } � GBhA `•=.�-___ . >: __ -�.��,f_� '� � � _ RIMMHl05.18 � ""Q•�•�,,, �� _,,,_._... 4t)i197 , m - _ � , -�,-�,: � -_ _-�-� �.,� - '- �`` �� • � iIE=102.48 18dQ1 NE ..."'....`.` "`�°�"- ,. -- -..`--_.-� J •-=�'��-`- '��' 1 � 1` ' �L � '' r IE='#02.48 1$"l�f�SW� _5 _.....`-=�-- i3�> ,��' p_� :�' � Z , _ � � '.s^._.+. �,��-�.`��5" � "`'�'�� _ _�;Z-- 9 '` .,,,� (� � 4� `J�H � "�``'� �•'�-�`'-- ''�'- ,P' ``'1 -`�---- � ' R! 105.48 ' 0,,,�,�a� `��''_�_' ` ~ -., -�'``�„-_ � � €E_'#�2.03 �2"��gt�t� SSMH �,�h �,, � , _ 5" � � �' IE='�02.Q3 �2"C NE R11++1=109.56 '� �'�- �� + U fE=1;03.28 32"Ct�P( ICA�) IE=97.51 12�PVC W) ��q'" � ._ �`�''----�''"" ! �-i��; _• 1 � � IE=97.51 12 PVC E '`^° � pE� � - S ',, � , I IE=97.96 8" PVC S3 '�� ;.ppg? `'-_ ,., � ��L � �D�' FEN t�. . � � iE � � � "-.,,ti� � . 5'BCA�� , I , �_'`' `••--..! �~-�'' -••�. � 'r E N C� � � . '��IE 1B' _ '^�-.__ � � S 1�rt rI '~ ��"` � �'" & HO MB RG,YINC.�P 0 ECT N0.I T.PER ? + EM � ' ! . � . �••••-`�' �� "'�4.. 232305-9210,9211 DATED 6-11-07. � j � E_ , ' ,. ;� .. '. . '.' , : � _ ,� ��`'``�.,�--=`�' �"'-`"'"' -...,.�..�-�.. .,,�� '� � fi — , �\IE 78' DI. . . . .. .. . � . � � �_� ""°+�.,,..�... �5 � � \.. _ _ . ' .. . . . . . _ � ��. � � U � o T . . . � ' ' _`_ J 1 � , ''^�.�. . . . � . . . '_`ti � � ( J � � w j ' \.. �,�: .--. ' . . �. � • ' .. . • � . • ��.._ `C+e:� ;, � ^ U I � :� ��( C� ' W `` � � ZJ'. . . . � • '�V 4'J I•. �� u„�su....ao. ^s.o�.+vy �e�' 11 ` i � - > CO a I � U • • ' _` < , D q� � ; O 'J . .. � "." .. .... . � . . . . . . � v ' :: .. , . _ ' . • . 1�t �_'�\� "`awra�Mr' .�e�. } , W � � a U C ��.. _.� _�h � Q �V I %� . . . . � .. � . ' -��'❑ . . • . • . . ' . . '�_,� ''`. 9 *»'y'aa."^a.� k � Z I�'r J J ;` . . . . . '-�-�- �, � ! � � — I >m � � .: .. :. , . :� , � �. . : " . : . �r� � -�---_� — `'�. ¢" � — o � `'�..,�`"�_ "` i Z N # ��'• I i D ' . . . .. . . ' . . '. . . ' ,"��. `; W o ' y Y . . . . . . . ' i (J ° � � 0 E � � I pa . .. . , '=- . ' . .. . ' � Z Cop � .. ; � � . - .�p �: .� ` .. . � . � . . � J � go � = I � ' . 8. : ... . :. ;,� ` :.. o ,�� a � ; � -�.- _..:o.`�:�. - "• �; I `. J�'' � 2 > �a ;) \ J g � ' � : ..�.;—T �� :� _� .:. '� � �� : . . . .� o� �� . �.. � � ` c.� � — I a � . . . . . . . . N ,�, 'y ry� . 3 � � o � 3 o q � ;� � 3 �o b � a - .. � >m �3 1� _ � Z ''�u o i.. n� � �� Z3 � o c�a' o 0 0 0 `a —�.D Q��?1�� 1 � �' �—�-- � � — � n �j � �� ` ' RESIDEA(TIAL ` ' � 1�� cA� � ' '�`=� 1�� CONNE \ OYERFLOW TO ` � Q �— � � EXISTING SDMH _ � � Q� BYPASS IMPERVIOUS AREA (0.19 ACRES) �p ��N]�m) � � ExtSTRJG STOR11 � ` � P o��dl �]ITn DRAiNACE S` � � � �� nria! MAP�F VACL,`_ 1 p � P D m ` _ \ \\ O S ' ` Y R�A� �S ` � �� G� 5 :- -:-...=: '—.� — � � � �_ i :==_ R �s ) � ` �.,� �—=_` 9 � — — — , 0 � � � �:-, `�=`-� \�� .`� � 1 _ -.- ��-. . � '��.,,�. Exisn�warwce � � � : . � . .� I � '� n\ _ `^�. .. . . �__-�-- DITCH (TYP� �.� _ � � � '��- � _` `\\'---. _ � � � � �1 � � � ;.-I• A ��- -�'�- - . � _ - _ � AROPOSED STOR` d ' . . '- M RETAIL p ��`�- � p_ �� -____ DFLUNAGE CULVERT, (TYP) .�.�,_:,�: � --�- � f � �:. . .��. - - �� - � r�sF. �"� `� =�� ' � \ � 'a" �' � `�—'@ _ � � I .�I I LOTo ......-_ B � ��. `�� ' � � � A � �__� W t � `till RC I��.o._,^, s "--� `� _ �`'-,`�..+�-. .�� / (!� 'I � ' �,oBe sr. '"�^�—•�,�,.c - � �—�` �� \ � � � � � �� - _\ -=� • CHURCH � W � - f °- . _ � ,` ��` � � � P '� � � � Z � � } 'f ✓ .s' � ,r r �` ROQF `'s t '\ `��_ P` p ffY ` • � � '� t ` j � �� ;•� �°,, BASIN AREA_= 2.45 ACRES . � ��N TMP. �� - --� � ` �� — _ �..0 , q e � Q v f . � � Y. ' '� r� ` ^ �a � g f 'S70RMWATER �,s�� -�-•' � L°` �T� S 0 .P � DETENTION.- � /• 4. —�° B �' Z r ��r' FACILITY = ��..� � C � ` �-L�'_ O� •,� '�~•A� A G : h _ �_ �.. �, -� l� " `ry I� -' LOT L1NE TO'_r+ RETAIL � ` - ` BE ADJUSTED �,��, D'� � 4 , [�; I � I� j � } . .�_ ' ` _ � _ 1:•� NEw �or � � ` � I o ! —~ �`.` `� . �,�� -�-- a p i LINE Q FUTURE I �, `� Y,� � FUEL � �� '`- � '�" STATION � � � � � � -.--,, -- - �o I ' - � - v�: � � ? �`�-.� LOT (�Wi Sv.) �`; � � � \� a` ��._!�':_ •-�� - B ( � \ ` _ - __ _-, J i_ RESIDENTIAL �� - StORM DRAIHACE � RESIDENTIAL � \ �` STUB FOR E ; � _ .,.�.FO£L-.STATI T - ` `•'¢ _ '. 1 '•`"� � ? 1 C�''' c+,soo s�.> ,� Il a ` I �� „ � � \ i � � �� i � � 5. CONVEYANCE ANALYSIS AND DESIGN This section will be complete with the finai storm drainage report prepared as part of the final engineering submittal following preliminary plat approval. 5-1 r_. � � I 6. SPECIAL REPORTS AND STUDIES Additional special reports and stud�es used in developing the Cedar River Station project include the following: Geotechnical Report The Geotechnical Engineering Study has been prepared by Earth Consulting Incorporated and is dated Octaber 1, 2007. Furthermore, a Geotechnical Study Verification letter was prepared by Earth Solutions NW, LLC and is dated dated October 19, 2012. Both are included in Appendix C. Technical Information Report The technical information report prepared by Barghausen for the proposed ARCO AM/PM Facility dated January 24, 2003. (Originally to be constructed on the Cedar River Station project site). r _ . ,. , f . ,` , ; `� 6-1 � �' 7. OTHER PERMITS No other permits were done at the time of this report. 7-i i • r■■�� 8. CSWPPP ANALYSIS AND DESIGN This section will be complete with the final storm drainage report prepared as part of the finai engineering submittal following preliminary plat approval. _. ,--. � ,\ 8-1 9. BOND QUANTITIES, FACILITY SUMMARIES, AND DECLARATION OF COVENANT This section will be complete with the final storm drainage report prepared as part of the final engineering submittal following preliminary plat approval. i 9-1 � � I 10. OPERATIONS AND MAINTENANCE MANUAL This section will be complete with the final storm drainage report prepared as part of the final engineering submittal following preliminary plat approval. l0-1 APPENDIX A Offsite Analysis Drainage System Table And Maps OFF-SITE ANALYSIS DRAINAGE SYSTEM TABLE SURFACE WATER DESIGN MANUAL, CORE REQUIREMENT #2 Basin: Cedar River — Lake Washington Subbasin Name: l.ower Cedar River Subbasin Number: 8 Symbol Dralnage Drainage Sbpe Dlstance �� p�� Observatlons offield Component Typa, Component from slte pr�� Inspector, resource Name,azxl3ize Desalptio� dlscharge re�rlewer,or resident see map Type:sheet tlow,swale, dreinage basln, vegetation % 1/4 ml= 1,320 R c�nstrictlons;under capacity,ponding, tributary area,likelihood of prob/em, stream;chennel,pipe, cover,�depth,type of sensitive ove�topping,ilooding,habitat or organism overflow pathways potentia!impacts pond;Size:diameter, area, volume destrucNon,scouNng,bank.sloughing, ce area sedimen rncision o h r ion 1 18°—DI Under 152 Ave SE 0.5 140' None None 2 Ditch,3'Bottom 3:1 sfde slopes along SR-169 0.1 515' None None 3 18"—SD Discharge to Madsen Creek 0.2 600' Burtied Culvert Overtopping of Ditch Entrance 4 Madsen Creek Meandering Stream - 1050' None None 5 (3)24'x 33"CMP Arch Culverts - 1140' None None 6 Ditch Along SR-169 - 1300' None None 7 RCB Channel Under SR-169 - 1435' None None 8 To Cedar River Conveyan�to the No�th to Ceda - >1435' None None River 111105 '•. . :`Y / ' ��; _ . .._,� A ' e . S _ , -_ : y, � .. . .. �..� F=� j � �# � . / .:J I ,, �f �, t :. ? '�� t �*�y'^�M"�-�wAwww.,. �? �'r'+r`.... w. _ ! � . .%' . t ,. -+wuw,�...,�..m �f � ��.1� / � � y�y . .'- .:. .�' � .::. �. 'i . u(� .,`, �...... { .:� )�. � � �... „/ ;. ., �7�{: I . .:�, Y�t .-�:n r �O� �1'.:�� ,. ,� � ~ � ��,.. i��!*�Rl� � � 'I� ��'� � . .',�'"� ..'�/ �S �, � �1 L +. �+.+.+�^r+�-.. ... ,��..+.�yy, , ) � -y� � rz. � � '� �` �' f `ti 1 �� .:�'r";:,,w-'' ; ; .,.�.,�� `� f ,� K" t,s �r � `\ r a � y , , � , r w� i� 11 t, �_,.,.,�� -�` , tt �+ f� �r ,�f,� �, {p ? , . ),, �1� .��;, r��".�w77��+ q s'- � �y, •;�, , r �!!� .k'sro p�,�.� .� I �� , � . . ,. . .. . ._ ` � ��'� � . �: � ��1F"�' '� r � � { ff . -� .,, w�a�n .>.1.i11. v;S.�y..��'..� .-�G.... �,5.� .. ! ..�'��' x�'.;';: � y �' R�� Y y l � �iS r � � � E`�'' f,w' � ;,„ ' J` �+ �" _.:�:�:�. �„__ � t:. �' . I''� ��t,l�I', '��I, i: �� ` H --�...._.. ._ +. �. � t 'y � :, r� 4��. : r�'F�` � � �. 1 7 '�.. �, y -•� 5 x ,r y � . �f'� .J s .�Y�{ 1 i iy.'"'"`•+ .� I 7 � � 7 '�'. ,``f �: ,/� s�� ` .a q„ 1,�*` � � 1 j� �.,` j�"""' j ( � `'.} t 1 �y,i i3�' � j'� � : � h�� . / ', � k., . .�� + j � �� ,, 'f ',� � � �J r �'+ � }`� , � �t��J) F`� . t� E~ � .°i ��. � .i �� -..�v ��f . '1 � x �J� �r ,-.� ,°�s � .Z y°' ' t ,1 M,`' "'"" � � `„ ( j�{ ,; P' .��, ry,+�r;! r° �' `� ` �,, f ,r � � �v � 1 f � � '1 13i � - rF ,� . r�l (�,'�, �x�'�,� �� "A`t� _`�(+t,}{ i r� �+: �. a �'� rr (1 e+. ' , �i r ��'i f:r, �� ... F �i 1 1 1 � i !+ 'r ��'- � �� .. �� .` f. , , , . . .Y I � ' .. .,..n' 1. f . .� � (i � r F� �fr} rt ' �4 h" ,sc>d ' j ' 1� � � � i .�. . �+ �~t t j�,�'�� i "� /, �� 4�y �� ?r,�� j��,. � i; 7.,� �.' �� i u �' � �..� % 5� �� Y+ �� S 1rF, .{/'� I �r I ,.!ili .(; ��t� . �fit A a "'� x ?u, ! a.�,,,� , f � /y� ..,� r ! ';4 , �, i �,'' ' m�� r< .N• �_ 'i �,:{'' !Jf ` "'v : l, r lii . 1 ,� � � � •.y'�i 1 ��'�i;' ��'.� 5 /� ,, -,+� ? ' Q ' + ' � ' � � �� i, �. ii� A.. *� , � � � '�j�•_� � F�' . . �..ur� ^ f:.'' , 'rf � �� 1�� }� a `r :�p ` ` r�.' ` 4 'f�.�`t{f�rJ ��: Q� � IIJI :o�y{. j „� vY � � ..� �..;��'• x �� u Y ..v 5 ,� `i.0 � � �, ��:��v'IG r 1 ��❑�. �.��:. � . � � � 1 , ,�f'�� .I y� � ' , .t 5� S� G�i .f Y�'ii�f �� i � '� 7'� �1 c �i �� . �'_� � E ,a�s4 � .�� 1,�� ,t , A � s � `� �r;,��; � ��g�' . '�. A/ � ��:'": �, �"�,�:. ,!. )Fs ,< � ��{��.t �' � e<qrti�i /y � '4' �aS w��.. ��.�° Lf . � L•� 4,�. . � c ; � f :a > .1: : � .�r:.� S1'.G. � �: r �, , � ,� ,t�, �� -�. ��l r � a , � . .�y�• � m . t5�'. - � � T . �' . � {�1 .. ,.�r...' y%xl n,�-e, .�'tk.ryr. �.� � '`fat� � '.. °� �q� � �� C ' r y� �'^`�`�'^-�-.` �tiA}r,�N' . ?� p '� ��' �' t y�. z � �♦�� i,� y ', � :: ` T�� :;� a �,<' 9�� 'fl ' y o . ��. , �`�s�+ � *4: • _ �+,i Y vi��5�,�} � � r �y �'("k`,�..'�j� �... � ro uN�Cg � r; �Y �E� �. �r. ?'.3 � �'^��F.� � s ! ' 3�n a .}, �'.� 6... ;y ' '�- f � �� . �, , , :<�, � � o�k �. , ;, � � �,�` � (I � t „�� y� �u C p ' Cy . ' `�>• i y��. � R y� j7� t � n� Y G til� �J��yS i �tV��p .23 �rJ �F, �i �' ��' � i� : i n� < 1Y j� *�1 ,.� �`«�o �. ' q iT' • .M v� j �'�> .' �� Y�Y � §�� . _ x � r ` � •- � 4�. �. : ! }� �. y cn�� -�Y . -�. 1 ��4.. � Q' 1 � ;C `I � 4 /,��:.. � $ �'. .�_.: � - ,� :. ` + ` � 'S 5 5 f`�,�a� a� �MY n � {. � j��'..�J+ $^.��E .�..:sr. � ��"�{ )a� ��' j 1 ,�,� �►, � b ..- 'h w'� �� .�� 4� f r 'PY� G �; � �� „ r ). ,�- l � �� < u � 7 ry'� �1 .� y�� 7� �� tn°af. it ��Q{�,�.��5 . . ::�k � , 5 .Y� a � � � p� 'f��r'kb { 4��it � f. s' \ � ,l�it"f d�. ; E R'�.p y. ..4 .: I � �,f ��. . . �,�_ f�. �M/ �� 1 .+'.° �` ,ijk.,� r � 4 � �Y'�y��:.; 2 � n 0��w �. � v i `.R� ♦ �x � ,7i c � Q�. . . +f � F� „�'�.' . �v �C l �-� . � ( . `�' , i � �`� �1'k t� - .�j� � � ��. r ,,�f � � i,' � "y � .� �,�✓-t,� ' � j. ��ro�•_ � a , �� }� � ��' ,. �r+ �''J '� -{ f• � 1��` . � t a„� ��` ��_.�' .r i' + {f�. ��-�Sk �' �``,'�.4�....�. . . �-.61 <^�f r�.t .`f� ' �t � S � • �, I�t�. '�` 1 ` _y,u(Y t�,S1 � �i1 ..- 1 �� ya1�dp, � . i 1 r r ti ':� �, �' + a�,h. ,� t�I � � f 9,+� �`."�/�: Y�� t e�V.{�wll�j � ��i?; �Y �3 S b. . p„ i 9 � : 1 { �'� 8� .� �f t,� 1t �ia., + c c t.?� 'Y• � 5�� ,., ba. `...��:I �' ; '��-'� �'1�{l '. V ��+ �7 � �S . '1 �'45�,� .�. � '. , . t.t i;.'� 1 � �� ' �.5�4��,� � 1�i �4C� �._'. ' 'uA � v 1 ,✓-: I�1��I � o Gt� �. f� �� P � r1 i � 9, � "'` - V� 5�' 1R�Ep� - ..... � � <, � M � '�7a� �x:.` �.� ��.7 � :c�� 1 � •�.6 � �r V If .`�.. �� {;_ s. f :� +.. � Vy, � . y� 4�• r � -+.-.._ °� _.i 5 �,1 � A' ,,,� g� � �. .. . .. �r, + 1h + ,�r� ,� ��±�- �� ... ., ��'M-...._...... '��yl�` ' . . . ..... � .,�..,.K. ......y...� � .y�� a � , �"'ti... . � "_. ..�._. ......... ..��. _...._........,..,.� w �� . .� �� , ,_ ,; : , , - -� �+��(��`��`�� '� -� -� - ��r' ;�, �. £.- �.� =�.� u� f' �� #� �. � � � � � -..�� . ,; ? '.•��`"":t ~�S.'` .,I%!�`^� � � i i _�-_.,M �� '- t� �t. �_ a... .,.a. f. - �� .�u'�t :..yy�.� . ��_, � 1�. (/��..,� f •�r'� �.�a�.^�j��. ! ��,.-.. �`�—~�.��_ ��.��*'� ' �� . ',�s � � ~ ---- < `�.3� 't \''-�`� �� .�� :"_ � t�,�, T '' f� � . ., tp -e�y� ,'� �.�s"..y� � '�\_� �` .'` �$`e...,� y� Sk �"^+' �j� l � J'i . 'w" e `'� v �� .�. �� 'r - �"ti..r'�� a �;,�,,,,,�� `�� ./J � . ��' � � t "�� '��...�gz, f ,""�' 'a�('�- � �- � `_ : �i . �i � = 5� ��`"�,,'�.,.3�.� rl'�! '4 ��,�,, �� -f`„�� - �, �r . ' �'4 �� ... , I" - �;7` ��'n•' �� •l�1�� -' ' ,Z � ' ? f_,� '�..,._� �"_ry^ r t 3�, �'�.� cg� ":. �. . . � � �{ ` � ' - .� _ k ) � . � . "t..' �_.. .(� n:. Q� �C4�� A� a1>� � � .�'w.�. .�. r+ ; T U�if ��E` "';4 `=.�.5 rw„. ° ~ q-y � ,t �., ' � ^-�,'�t '� � ; .�. ;' '�,` ,�''� ' � � HH'� ti K 4 ��y��.. � 1�; � ,�. . �'�h,,� ! w�a x,, � ' � , , � -..71 :�� 4r �� '.�C� ^� a: '`+ . S"':. . �'� � t--•�--z..,,�_,..�,Y -� �1 ��: .�'^.:� "�r �: . . r: � •:� <, i � '�` ,�r _ ,..e. ..F. � . � {fi r=� �,.. :� ��+5i .��, -� .�� r F ' i � - f`; ;'t � _ . i ' f. .yS�� '�ar � � r j� ' �� , .' ,+ . . -�,.` j7 . � � 1 .�f,.�.' 'J Y�'x't�F��Y7 84,Yrw&%x.s"iLGl31 Afpa �' � 't � . ��+ '� s ��--.5. : w{'7��.� ��/�' ¢ !-�-, . � :i' .: . .( .'�E ,� Z_ � � t.,�� r-+� ! t� s � '`^�-�� iy I� . ..�� + � A r i_ - ; � = "�' ,....>- i r�" """--..�, ,� �� }�", ..• _ �i t '` ��r �� '�`''„ '`.--.-,..:_„r,,.� �,� r k:_r '�� `� � 'Y ,.,�..-=:: � � r � ; ,,� �, � `�,� ,s ; . ,� ^��'��r f . f �``_,�� ' .� -�. k ...,,� ,�.�;ly '� � +.�• ��_ y F� �'��ti� ' .,,�� "�4 � '� � _ .,•�' . ^y '�'� -a�' .�_.M1' �, .� � �-3 +. y f�y;,. �� -.Y � �SE ` �j {N `"`�t�,,,,�e�� } ''� � �`•,� _ ,, __ .. ��,'t _Jt _ ��. b�.::,M� 4 ; 5 � d1��`�.`` ' .: - ,,�� '. 'ya. � �' f _ ��.'�%�L'. ��*'�x^,3�- ` '�j ' - _ .� F j.. � w� s_ _ - u ��s- y .— ., --- � __ t��. �� 1 . �F�F ' '��- �;.: [`�� y i�, �� _ - ti ^� —~^�~"+`�__�. �T ,.�-.� �'t ti�� --" � `;�,� ,r' !E F r �- NB-P • . '_ ` � �`'`� ,a�y �� ,x r C �VFA�`T- f. ,�� . ,, � � � 1 � � - � � 's I � /' ; � ' i !�1�.,P _._ _,. R� r� � . �.� �'� ��K a.s 4 ~� ..��. •_ � � ... l 1_./ �'� Z�t � � �� t 1Z7��+�a��+►r f 0 z3eit ' " af+Jris map� as tieen ocmpiled bp Kng Countystafifrom a ve�tety of eaccea-end Is su�edio nge vdtho�t nbdce.�FGrg . . d Camtyrfiakee 7to t@pretle3Mat'.nrs cr Warrantles,ex{xess w ifnplied as to.Qccura�Y��d��,timelirtew,�nr rigfrts to the use of such irtforinat'.on. � . � •.��.: . .--- Thi6 daart�Bnt Is r�t MteM�d far use as�a sunrey product Kt County chell rrot he GaNe Ta�azry general,spe�cial,mdirec{;'v�ddental.a cansequen6al s � . � . d�Irx{udl�.tnrt nnt-Imited ta,lost revenues orhist Rro�resultirtg from Vu use�miausa of tt�a jnicumaticrr contained an thts map.Ar.y sale ot �1�:�f�,�„-�,t`' thls maP arMom+atla�-an thi5 rrep is prcbFbited excePt by mittan pem+i�on of King County. 1\� �►V�� Dst�97tSI2�08 °B' So�rbe:iGr�County�MAP-Propetty#tfortnaticm{►iqPyMM�iuuwwmetrokc 9ovlG451iMAP) � � � ,r� � f4� �. �t =�� tr�'.`,,:' � s �' `� G�`�°�'� , � , ; ,•� '� . . c �� : ; :, , ,�r � .; , _ t �, , . .�' ;;��h ��... � ^,� � , �r�►,,,�, _� . ; w ��_ V '� ��; � �'. . --.»... ,; � a�t L J! 1=�,r�► jS�. � _! � ��1 :�� ,F� 5 °�' f � .. '1� ))� � v ^ ` -- � .'. i. . r. / r i; t � f . � _ �� . ' . . ,�� . . . � . 1 1f � � � �. `' .� +� �� q� �aFF� �.�., L � }/� ( � !�' � �+?� � � , � � � ..,r � � ��rr� Kw q �C v t. � f , `�:. ' . hC �'� �, p�� `�. . ��. �. � x,, � - � ¢�� .�� y � , ,; , � • � ;� Lti��, — - - �` . �� 't�.' ;r-- 1"ca` � "''ej � y � o, �� . � � � �'�'' ��, y� °{ :,, ,,.__ �� '� ��' � � +�1,�'�'�1� � b� ' y. .. ��r.� � f� � � �R� � �o' � f� y ~�� ^-�:- �m 5 �ti ,,;� •. . �� "•*� � ;. `� -„ �..,. �f, 4 t ,� � w a as�� '�''�~3 � a w � `�1 i' .r�"A,r� 4 �, ,:ti _ �a��,p�t . 1� �,i� f/�"`,�;�Rr ` ,��.^' — ��,'' 8 � �� ;ai� .�V�=«a � ,. i�?�ti,r-�,r..^'!" �,.;,.�. . - _ ��` � ��,+' � :j: �.�� . y.,, �' .��,,�"' ``'�,.� -� n �1 C.� � l�.�l �� " N � r � �� f � �S,�Y�s�- '• t r N -'�.-�_� ��5 � '� � . , .< ' ��.'. �r�,r^y �. .� r Pt,� � `i � - � '�� ` �. �. �„� f6 „�. t - fS �f- , �- �# �°""" � '' �r y o.�Ti.�s . ;!' .. ��'y��°� � �tr l . l",�'�. �� L ,- '. �i� _ ��Je�' . �. � a' � � � y { ,� ; �4+ � �5 ��j �' ,�� r .� �,;7 , � f� �� t� 1 i �r�.: r{�� i. A�� , .i �' � 'r t 4 _ �� \ �� ' , k,k.�.^1 i n a '� 1 uy'�� Z� ,;j } ��..�. a t '" 1 .d! ,,��.. l ( Z !f� . R �r .:� . ..��, � t "� .Z �n ,�,: ;f�� id�E �. .K e � � z� ��I h�� p�'`` S'.�r h ;* 2,` � i � ` '�3 �.. �i�_. C��.,f �`�� , C. ; �• _� .'� ,� �,� �� - x �{ � �V � _,3� r C ,.r .RS... '.��S.�, �y��- . �� `i,,,� �� 'n ',- „kr.1 • . �' U ..�. '' t� s i� �.� � 7... ..r;,5f +.l� �� '''�.+� :'1� jil ) � [ `,`�, � �� r'` �.�� '�� ,1 R+" .., ';' ; vC �� . �`'� at .r I T; 1 y � ,t�� . .: ` �i,4 c ' �. �.��Y� � A ? � s. .;+��. . .,�; .:� ��$ „�. , . � .:. ��. 1 -, 4-� �,..�� ., a ~ 'K . �: `"'�:. � ; i' �� . . ��,� , - _ , * ^ t rt - . .* �4`t :t� w� /`'�.'� �� yF"�,!'q . 1._� �. '�c� �i:� .r ''' ... -��,,,-�...��r�,,�� f !�F�� .. _ . .�� ,! . �::h� i� ��y�� '-'`d�'. �' ?f , r "`�!{` �� ,ti 7!� ; /� "� R ,� ;` �z� � � +; � s R �i�i�. a+ , �� ' , � . < , ,.`, ,�" _ . �� a� � � �'' �� r'� x�O. d • - . w 1 r 1��{ x� . . ... f r � °' � J v .c A � � ' � � ,� � � ! 4 .'.a S � �.: ; ; � � � y;� � a r S ,r ._� /�i {t��ti�� '.'� r,�- ' }° R . `d"y 9'� .U � � �," �°'` j��f�y�". `s � 4k� .��,Hat „�4?. �.F: } .-r ' r�. � a , J � y! �' �: tk � yl�� .��. � 4 � 1 t t J }c � �C � � � ti ��1 �}' �t yr �� / . 1.+, : � f,�;j" � rr �: ,� /W� . � / r i� � .. �;y{ �. �'. '� ��':''� i �iry � ;C•„ ' TI': ,1 �� \ir I ,!I`, E , yr �y� � n ` .' +`,y'� pi �, � �y* Y � ,� i ,<� � S �� r f' �`y � ; r:. � � �� i �! h � . y x �x � � �� '�,„:, �a'' �; f `d �, . .. t �,� :�."� . � . .� . i �,�.�, Z j V � ��/� f :r ��Afi. .v ..r r .� f ,� � � -� ,i F. rt, 7 i � �`'+.� : F ;n . . �,:f a.-� �y,. � h � �.. . il �� t f 1 �.y �E *_f� r; , J ,.,�...��+ � � f;.. !�.� �� . �. r.* . . Y f _' �. .` t _tY 4 n� k> 4Y � .� � ��•�• I R.'�g.1L• �N': kJ t!� ��,fe � ti � . t � hS-�T`L n ...:��'y �4� ��5°'9 {�} •y'."^"v., 1 i' F Za � 0g°. �' .. y . n� I .r� �s ,�. ,��.5� i tR �� "� . �y r� . R4 ""'n� .�,. �: �� F'i. f �p �_' v�F ��.y �C�.r� rl.'t y' � t l� ._ �r ' t �. � r� ( i �1 �r�V � N._ � 6. 4 i -♦�L t w� ��t'� 3� f;�,��t >�Y� ., a� ';�,�3 Q"r'rY�,y Y e�rr X f .5j q URi� j � �� r^ �� ?I g r� � �. ��'� c�3 , �i � �� r ry,rr r i rr, �,� ;. r` r 1��`l.t.��dt,�''J t r�M+`f��i i °` ��.�`�'�� AfA:�� ' ... .� . 1��. �s��.. hi .1,�•wSr,� r�.�ti.n•.v .�.. „�„,. �'r � PS �1 i� � � � I� !I�..ivltjl'�� U v{ A _ , : R�s��`�� 7- . , ... , � —i t i ' 7 � � i�"��•:.��.•. ��h E . � � 7 � � � _ - � � Rr4 �..��.�_.�..__ ..�,� F. _; t_ ,�- ��-� � �� J, � � ^i � .I ` ''e,,. R•� � �" � :�� d � - - .=•� �. � 1 `',,,,,',�'"'r , ;- - �1 ,�:-_ � `1 - ' � � � � , ��,..—: � ..�•'� - �" r� � r ' i �� w' '*_ f~ f �- ., � `, ' �� ,� .�. ' � ' F � J��r, ��!',,� �; `t..' � `� � � - ' �. ��'.�� . } ..r� ��X� , �� ' ._.� � 1 �1� . .- 1 j �}r �t $ [1�."' � r� . rpf '- r _ 3; �, � �� r r�h� �j� ;.f?� � i . � f '3, . ��(; r � � �, .� � - . �_ s�G � f 4�,�y. �. � . �.�� .s.i. a^ " .�. L ';.� � �a �Y �Z,�^'rt ..�J .. ' • ♦�� . .,�?f r 'v r 'r w�„ �,�r ri c � T ;g T 3 g �� . .;� �,:4; � }" , Rent�r� ��it� � � ;z � . � �-�--�-�- ; � _ � � 7,+,<��,•.%.,> �z.*'Course { A ;•� � r' �� •; _ ' ��- t . ..,'� k � t , � �'i `� �, � - � �,�# _ �: v,�s r` E t ��. . -�F �/j] �'' . �. . � r� Y r K� A,� � `.� K S _ y � .!t .' �J .,, y �f - :`�•t�� '. r � � r N+��r� �$ 'i �-i r: �, /^++� �� t � �u. �.�,� � l�l t` � �; f trl�It, ,t lj�i�� _ v�;�� 4.; trVv�G ,.,t� F �, + _ _ ,� � ;� ' DowW STREaw�c _ { f �` . ° , --�� - : PRtH. ? � • ; � ,. r � �, � �( ��r � .F Jt � 1 ' -. r ?` , � e t��-� yr ��Y �� i _y Sf f+E f,it�.' {f� ,. ; �� k Y,` � � ;�t(� � ri' � j4 j' ..� _ 'f.f L,t`�y k _- 'Z .,�' ��+ "'�T' � . 3 j� .. .,,� � ,� � - �, � ' . R'• � . 11 -�.. {v � ti1 4 _ _ ,,� Ij "`�w.. � 1 'w._,�, � . ...t3r...� t.Q�r,A,,. _f "+--.,�,1�_��'�"`-�-_ � y.� � .. �7t� � -.sitl . �� . �� , ' ' h� � - .. ��—�+.�� `��' ��t�1 ` � , �""�d �� j' 1� �~`"`ti-__,,,� �.. �3 ,� �' '� !l' :� - i� �� -;`�-��.... � ....,� � ��,� �'�.��t� . . f / >*t � _ =' � �p .'..�� j,� ; � �. 3Y 1�.-�i O'^f1..t;;�� S� 3' /' � I � R� , : �,�� k - � . :�s � '` R`+l� _ � s Y "-.1 _e'� �� . ,:� �, �� r '`„. � i. _ ��f ; e� u �.� . _ �.,�,�,--_� ` � £ �+;,,� ,� .� � � -� Si �� r .'�«; � r �? , �,,,� a.a„' � t ,'-�I� Y��"*�*y�� , �A� a.:e � '".r. �:�. °� ;� o� � � �' � :�_,�� C}�K'npCawly ��_ 'd � f �� 7 D 447ft ot��(y on thte mep has been mrtipded hy[an8 Caun(y 6om a va�iety oT saurms and ie fo c�ange w;hou[r.ntice.iCFng This craxnarn b °r�•��fmpfled,es to�aaar.Y.cotrpae0enees.tmelirroa�or r3�hla W the use of surh irnormat�on. - d r�f�areuee as a �ir�g elralf�rot be Ilahle 6r � �+^�Y M��- �Y 8��,aP��atdired,brodmtel,o�consequentlai � �(� da�naqea kxJudlnD.but rmt�to,bK rEvornxa w lost Rofite resu hom die oae or eilatme o1 ihe b�forme6on catEained m lhia rn�.My sele of ■V�'`__'_""./ 9�fs mav or Mamsdon.on tfiie map ie protut�ed e�mepi Fy rrtiEten p m�on of Ktng Rwrny. p{� f}ata 3t191?DOB � Saiv�f6ng QouMy AAM-Ptnperq&�miatlon(hl�JMwwmetrofx.govlGiS1N1AP) "�! - _ . � AQUA BARN ; APMTS � � ` � - __ �_ - T.2�N_ R.SE. V11.A1l. ., f � ,►sf Easo�rr,,,., � ' SR!6? ST�I ijBit3l92 P.O.I� � � ' SR 169 ST� R84+9�!2 �flT• l � , �2,.w- ' i52 ND wvE.�E 57A.9�53+W ar . LS�TH PL.S.E..STI�10*00.00 �,Q '1 ,��`� t,�,scj�` o ; M� — 3JC 1�v '� - .. 1 ; � o . �� . . o � � � � o j �. T r o � ,� � pc�,y �swt NAOSE CREEKe 1° a ' �'�•Y � :'s - • _ 3 , - --a1tt------ -�---- --- - .5 ----�-- - -- ��s-- --- � p " 'r r� � e . ti �r, � e � . p ►- � •"+ � � i !.�p e+ w�/�6 tHC}I F _ �c--_+-=►--�----�-'r---+-------s+----+r--- . � J�► .. t t.��, __ ��... ..,w,-. ts�.....:-�.5-,�.....:.:...� Z � - — �r -�_�-- -- - _ - - - - � _ -�-- - - -- . .� • -�'--- • - �C? s, _i _ • � - �380 - `'i , _ _ _.SR!69 _ ..y�_f ___--___w' _ _��_._ ._.___ -----�ceT --- -------- --------------- --'---- Ex�r._-- -- — ------ ------ ----- — — ---- ----- ---- ------- --- --------------------�— -- - o �s� ----a--- _ .-•i�;- - - - _'' 4��'exs' 7E11 N 75•S3_�2.5',w ------ �:►► 'v�OCT�s ' _ ' - • � • . o - Ez��e r.]•T eztwx . + p . e � n ' • • . . . --' -- • +. -- -- r• - � � �EESC ' ..... ._ - 1 �. ra.'._• - - - . - -. -_. - . _- � '._• e '_ •- _ A i . � - . . . . � - ex+7r�v c�v � . . b--~ :,6� ti n � ,. . ' - EEICCD _ ' " ' •t�0[ �! �— w i � _ � EE.SC'-� fIlE7RQ �•:. _��4--_ — — -- • -- -- : . � ' • R/X '�TG+4T.01 R/H 361t 1T.07 ' . . Yj , � Y j • . - = S ' I ~ � � _ ' f4 h . - �! . � � �. �� ' _ ' • SCALE �N FEET � 1 � - � � _ _ � . ' ' ' . � ' y17'f3 . � ; �-ar� �s��o��s��,�� i�-'"Tj . r � ��;�� --�:;, tt . �. ; ° :,-. � �.�. .�,� J)•� , ��'� - .. - � . . . .. � 1 -7,� ,.._��.► �� - .� �u.�uorxo�No. � NlGHWRYDlYISIOT! . sRf6� • p:� , �� & . 'A� Wa8�i�[1$tOil SLH#@ t96Tti AVE S.E/.K�NES ROAD YJ A�f �,� � criEac� x.z�NEx . . �,,..�,,,�,. � �/,� D@D�rtme�t o4 T�e�a4k?n ;n u�e P+ �vQon .-Y . MOJ.[MO�.iC.FINlRST611 P_E. • oztinwn GIRT.AnN on.v..r..�_.. _ - - � � ` , . - - Aerial �� - _ f � �,� �. �` �� 5 a��A� �F; �: � � � � � � �� _ �c �� .� �� ".�"�= �'*! �. h `-%�� ;ti�#�♦'+a; � �� x `��` �t'�e'" 't�i �,' �f +,r'_ � ��'�,+'�'-± c�c'�a'� r §�S"2' '4� a,ps �eRe��" � xr.�> �..__- } "� " - �.'"�� - � ��'��*'�'�a' �'':�.. �� r .. �ar' . �' az....�'i 1� ��li� , � r � M - ��'� � `� �� ' .� "�',r �� .;- .� �"'�� C� -�� A�,d�•4 '4 . ` . �' `� t ��?�� '''�� ,�'T } ��` �" � zi' s, Y t� � �r � �{�� ',� .�� `a'��` p._�g�.�J`.�j�k. .4i�.j� t j�.i $ .fi� ��._ _ � +`'� � . .._1 �� r,�r,.��r;� - ��':�'t " �� + �� . � �^ al�� ;�;' �$t +� ,t `�"}�� ..r�"�:� � � �.. � 1� �-.�E 'r_ � ,R e nto n ,� � ' ��, # : �; �,s� � . � - - �-��-��,:. �".� - �� - - ;�� "�•_�..�r�.��_'�"�J-..-�`r�:. �, ` .:rti•a.. .. .��Pt�.- � �-._ ` � `�� ; � �.}K+. �� . �.� ri � / . .� , � 1 y� '� s �� A �'��' _ �R��{.d'F�'Gy^t• r�.� Ij + _ � .�� t �� j t_t � _"�. _ ��_. A 4 - �� .� � ��. �' _ �"'s��!� �4, :1 �� 4 I`.. F..� . � � `.i:, � �� ' ��. : �� .��.. fax(-�.:'g R4�,.��`� -�� 4�{�l � s ..�� . �_�4, . � ``�-��ty. .�� z ��'�,� �T� �., �' y � �d ti� . .7aV• .�C i�� '-" - ��`� ��C',QV � r�i,�T �'il ' ^� _ , �''�4�(�i .. ��?.;�p'��7��r*- d � ��1:.u1 �� "�. �� k�..'r � y..;« �°�,�. {"� �M� �= ��31'�.M� — _�r� .�'�{ �.Y' ��`�'�. �t'�� f _ - - �° # �., � � �� `-'��.�.,,,��. � ,�I ��.: --.�� _:� � `, . .,; - l: ,� � . � � . - � �N�.�. r 4� . 1 f �t� �� "�`-_.. �� . - 4!" '�,� *~-�l��r F�1 T � � 1 �� -��.��f� s�� as. rC ,�� - �'.ts►` � � f �,� .� �r�� „ Y, rr ^;��,� ,�.� � .'�� ; ';�,.. � ��., ,��6'��!� .i�w. �i' �� !�� -)= �"� �� '`+ _ �x.�'�$� �.� .�<�':��:� : . k��•�,�� .`.� . � ..� '� . T,�: `��}'. `7�,'�, �Ct � -. :- . � �. �.. Ms ,� r ►. ' °� T1 -ry� .�--. '*� r � A �` �1 - _ ��-� � y�i ��tr�. _ �,;� �� ' �: � - - s �`� _ �r . ��'�+"'q� ` g � a� y� , �" ~� � '��,.� �t• ��JW.r. .�`!�` �Ti �� + ;�[-�'-`�� .�..-�„ � r � ,��.� ��_; � _ . 4� _ - - � •�=. ' ;'�'�.: .. �i +l ,". �';t i r .� ' - e�� - t_ `'.� i �� . � a- g � � ' ' - , .�. , >n. -.� s� x ..: ��'`„- "�� - , t+a. y,# � ' �I"`�'r ,� , ;i 's ; �. rr c;!" ; , ) ��!r ..:r � ��t, � ��; W?!�`' Z �'�, �� ti+ F' • �I�.,'`i` ,�� g�� r � r � t� �-JP"3��- -y �.t .�t'+,f�.; � � . � •�a �s � ' _.=.,, �,� ,- ��At�--f�1�',•f"l�►-':�♦- ,Ng{7 i`'�'•�� 9" ��,^'t:�.� �, +rs.`c.�+ �+r,- '� • ` � �� F...,��`�-!- '{"�. _��'1 ,{�� _ I x �"-+S �� . �£—�+' 4�� r"'f . �•r�-.< �.n ��„�_„��m.a�,. .� � . �,�� t �! T ]i�. 1 �, � � ,- �. � � - ��, y = � �-�-1.,.�� ',` +��` ��. r�' a ;�; �r,�.+,��,�. � '' �4-�r>�;�-��' ��` � �� _ fl�._t--�, • F- �� :�- `�+' ;1"at•�;' � � i .� •i � ; j� � t .� �. <:� �� 3�`�tL� �t.'�,� y< 6:� p... ��a�._ ��•_.:�s''r . ��.�A��1 ��f 1 k_,f� ��'� -� lFl � !� � "�Z I' 1_"��.� � �t � �. ` ��. { �'-� - �� ' ' �;��' 4, �` �,t� �f �' �,�� ; I., � � �� _ � _� � .� � + � : �4, �� t� }j� �� {� �� . � �( 3 � � :�,':. �` t+aC' 1t ✓�lS Y f 'l F t�` i I�.� '� ��`�t � � e.'�� _� �r :� .�..� �� ! �.�� 3' � : k� -� ' �- 3 � tCj2606it1ng�auuy �•.,ht�� :� ;��$r �€ Q 58 The inivrtr�atibn 4ncluded.cn.}ds;rap has Gr.:�.,.. . .t .f; �� - ;,,r -t�: -.�,�v�.. ,�c'�:�juce-s 2nd is sut�ect ta�ar.�..s..'�c;�r^'�+.:.K.lGr�-y - Cauirty ma.kes no rep�antatians ar w�airanties,express or impl,tid,as to ai,r�a�y,campleteness,tlr.rc�i{��ess,or rights to the�.use of such rrvatmauon.�. ihis dar.tartenY ie not intsnded tor use as a yl;rvey pr�f�ct,Ki�g CatirSy shali nnt be liahle for any g�,rieral,speciai,ina'vect,irjcider�l,M censequential� a i c' Za�rmgts ied�llrtg;but not�6'rnYad tn,.io�revent�s or#ost prvflts resut�g.fiom the use or mis��p of the i�fwmatim ron!aired an this:map.Arry sm18 pt King County :his map 6r kiformaYmt�on t�ri.s�map�prohibi[ed encepi by writmri pertrtis�on or Kmg Couray. D�e:3749J2008 $ounx:lGrr9 Cour?IY.�AAP-Stortnwater(3�i;1lwww:meWkc.gov7GL51iMAA) '��.{ .�,r��r � ""L.�I � �i �� .. . ' .�_ _ � . � . , � . . �.,. ��--�" � --- � i �"'.-,�'""�"....�..._ ......� ' ._ ...«.«,.., �I� � �� , ' �� d..,,,.._ ..... c"".- � �--��#.....� � �._r.�-w.,�.�.�„�,,;,,�.�.,,,�„ �(w �,, s t� {� ': , , � ��—'g. � �Ili"M�tt11�i �"`—" :�'�pit�� i. � - J]3 `<, �..:_., �' ; � Y.�u.�� ,.....q" . . � �k . . �`r"�9�wr�wkw�r t �. � �.4 M �,�� .�u �;...� .�-..y-ro-.-..y-... ,.�+Y .a,�.,.,�vA�.e^� S y.... .,rr.r� � ,F / � y --i �-.i,._�..� � � ��..: � .`TM' �, �',�,,,,, � �,..»N+ 1 � � .�� -� �17d1l3f�1 ."^��.�" � ' �>.., ,�:. 4 c . � , : - � � ��'�` � � _. � �"�;i �. - �,,.�`-..,� � �," �.. � � .. .�..... : � ' � �' _ _ '� �� : � . � -�- � � �;. �.� . � ,� . .. � �,� � � ..� ,, � .—,;siwwwMc---' � � w, _ , �-r��u.v� .v.,. / ar �' « _.... _,... .. ,. D , ` ti� � t t �. ... • . . .-.._... � � , � . ,.. . r. � � . . . - . . .. � ,: .,..,. _...,.. , � ��: ��, � •s�._...�M * , r�r` _ _ � " , � �..- ,. - �. t`�'� �.�;-. � �"'�' �`` r � �r �� . . � .� /� `:'H'.� ,� •'�� t�lt �'i . _. . r.'' i' `�+' � ��' 1 ' � � � �� Q �� ^^^+� �� i_J . . � . :. .. ,....v _ . �y . ��. !; � .. `'-` .. .. � '�� ' ". � ��r'y��,35' r� . ��`. . 4�f� : �. �'i�t �p . � �+' cr�3�{''p r ,� °, l � �� /�y� .�.. . ._ ' '' ... N ' `., '�1 � � ..,.,.. . .. . . O .:. .; .' �.� �'�S �� Ft/� f f'+� ��i� , f" y�";�. ' !, � v �' 1 ._ f ,� �' �'�"�,�5• �"! / , f�,�. �� , ..,, ; S r _ ..� �( " 4� � j ,� :�l � F �i � �, e&B �.::« • � �_ �� ..,.. �� "� _ � �'�� 'r i �� '�'�'+� � � �{�"1!L� �. "°t � � �'� �'"xy,.._.� �� r� '. •�� ` 'Er j�rD ' ;f� � .. . . . .. . .ry- R . , b• , � � .�� '' f�:� � �. �� ` f +` `�.�°r`,p �,j a� � � � � � : �� , , �r _ �+ � • w :n.r� .� � .� K .,�.-,�, �� _,# ; � .�� i � � � � 1 _ �.� .� . ��. � �� , . �.. _ � � e _ � � �i �i^. � ;i � �1�t��'! ...�^'; tl � r" �.� . �`, ,� . � _�� , ��` r� � ,��.�" �, � �� .� � w��:� ,f � A��1d►�� _�'� : f� '� ,�� t��-'�" �r .,� � ~ � '' � �� , �� ;i � � f ' :4�,,4 � ,�-- __ � .� � �.,...� ,,.,�,,,�' �„�• „ �g .� 2 5 � � _ . - ' ' � � j�.a�,a+Hu�►� � • '°�'y �f�� . w` .W ',� �_-_r ; , .4� �� ' � '"�- �s� , -.._, ��..,. ... ,, � � � �� Yy � r � `R� . ^•-. �� „�"w•'�.,,��`�"`� �,�-�^,,_ _.;�''� � �� ,-. . � .� . . ....,�'"'" .. 4 �� .. f .,,; ,, , . ,..,� :� �� . � . �� 4.. . � �. _.,�,� _�f i . , i r� r^ �R°' . �� . .� ��# �iin . . � .'}" � �_.�..»�� " . . ,.�..... �� ( ��. � . . ' , , ., . 4 �� 4 r: i�„� ; r.r� r � � .�'I�lirM19 i�. �+v�(� , �^�+� � � ��' � 7� ,J ,at� ��y�t, �'"�'t.,�=; �� . � � ;`n1P i� �F""^� j��Ay . ' 1.Y� w, � 1 r:�� .�,,.. , ' \ '� i��t'Ii Nf11M� � � ;, ;� � �, , �,�, ` �) � L '_ ,��._'� � f�,,,,,.,,,�� .ti sf ff� ��rrt,y� .j � �� i'f � ;r'; " tAi'I H_��!f"T _.., f ��9� .� . � ' + . � � 1�f}�;.� � r� � .......... � ,:u��+ � � :^+-�Y� ,. � �'' ��j.19 .;,,, .,; , _ . � } _� _, 3*�t�l�tllt If _ y �F �y� .'� ;/ �� f � . � .,. � . . ., '�'MItA�I > � . �. �� j'? � � ' t. '�`_ '"" ,� �r � �� . � � � � ;�� ..,.y� � ;�1� '�� ! . .. �s . !`. ..�-}y � �.. ... � .•Y�i �^a� , � ��:� � ; ,s' ; e� r�Y6) �" � u�. ,,.:�. $� � � ,. . ,4 � � �� ye:� *7 . �i� r�� '� "�� Jt'... 6.^""".�� V ��4�� ._ _ -. i � y' �y;� i , ' T : ��h;� .. Qy`AJ . .. . � � �, � . � /'� ; � ,.�` +�. _ , a Ps . +�',� � ` � ��W6�"�' "� ...�''� � r° -_...1 � ~•,' e � . .; . ' ^„ , , ,� : � ' 'jP`�( . t �, < ;� �, ,�,�� ,.,� � : ; �. • � � �!'. , �..�"� � r Vi � • '��F ,.... � � ��T� �Y•A � Y'r/ :�Y1 . �� .ri . . � '',� �+1fM�l � � �. .r � . . •-�, + r � znnn � . I / � / -..'. . � _ ' fE R � L`9 � � /aaR � i 1 sA�u � i - � p � _ -- ..,. �. y� � t -- -... � * I � � . - � •''` �. d '�r 'w a � � g ' 1. t sw� . ` � �� s� ss � w � � � ,., � . _ � ,.. . �� i \! * �' . . - . . %� -��-= � ■rr�n � -- c o . , . . �� I� �' ___ � 4 e . . ,�, •� - �� L_'.. �a t en - S . _ ._ _ iI� . - iau�. ��r . . ..,,� . ... - - � �i I - � T ��r rn - � r- _--:_- .--.-� .-..��. �-- --_ -. ~'��v\ � � p : _ _ � _ _ � _ ,� _ � ! � � i MS I` � '� "$ 1 __._ . .._ . __ �._�. . _ . _ . _ ..._ . ..-- --- _- .._ _ - - - -- - - -.-_ ____._. �.�-_ -� ...__ . -- �.- - _ - �� se a--a_'r �G 9 $ i . - --�� M� 4 � _�s � ....-. _____'____ _ _ '. .-_ . . _� '-J '��" M Q�O 'r`' .. __' __ __ ' _ _ ___' . -..'""__ .... . � � 1 � - � ---- -_ - ..._ -_ - --- - w �..� . _ .' .. .. . .__� _�.� Y� 4 if k� t ` _ __ _ _ . . ___ YM ■ 11 1 - _. . �_ '_ ... _ ._..' ,-_ . ___ '' r.N�■ Y A�L I ' 'R, • .. � _ 7 ¢ ,� ■� . . ... . _ . _ � � �e n � . . _ _ _. -- uawn � c i .. ._ . ... -_.. _ � '_ _' � _ ___ .. . � a a � � �...-.- . ; .' �- -�-- --- '�'- ='- - _ .. . M JLI SI M ;�fbl SI Z• � "___________' ___ ' ..'__,,,,___ . �� 1 ]Ihfl j I p M .. ..... . .. . - ____ __ .... _-..:(� OML Ob9 � { � �...."' _ _ ___ . __ _'�_____ .". _ _ _ "" �� __ ... . -.. y . __ . .-.-_ -�_- .:'_', .." ".'._ ..-..-__'_.'__ _"��• -_ Oi�ii � d K ___ _ __ __ . N s�i I f \�A S tl�� [�� r _ _ _ _ j,AKfi W/�SHINCtTO�T -_ - � '�~� k� w ae _ r _ K try�lt V� ' _ . .��__ ___ _____ _" ' _ . . ` � — r- � _ _ ___ __ _ _ ,(I � K�. �•, � i --__ ___ � --- __ - -___===__ ___ - - � � r � —K, H �L_ / Mp , — _ _ . . . _ _ _ __ YN� aq � � 1 Y[MM KNr9 �� ~� ~ - - - --- -- � Y K t� ; R n" a,� � 'h= ■u. K ss+ �: ____ _ _______ ' -�- { � [ IR K p KLy reIDy� YEbM j � - __-_--_ --- 1 �J ----- -- --- � '� � � a � - - R � as . �.n d 4 � ______ _______________________________ ' Q i[ RIMI � � � . . . _ -_-__ � ` . . . _ "' . . ._ _ ___ � KI X.-O ! � ___ __ `' r r .a. ! �• --- ----------- - '�t �-.-�.. . '-"--' -_ -_ /1� =� v" n d '�� . I � � '� '_"" _ ' rs i -0 � j la� �q t trry�= M �. � d � ' __-__- _ � wu �i � ..� : � f � U .�, . ` �. . - --- � ' � °' __ __""" _ � ! �� a " 4 � m �i --- -- -- ia�n� tl�� - ) �+t • ' � e � __ ' � ia� -/ D '�' n a ,y ��...!!! p - � n�n s w� __ __ r. �*"fAI 3 I � ii�,n. {/ a —... � __-..__ `F F s � I � - S i1lY�n � IILn ��_ I . '. � M Y � [ HM 1 � ; 4� d �,��. s nw �' rn a �na c u�a � v. L!.' '. , . . ' . . �`,� ' R �r � r i r rou�� F � ��r � K ns a ! K ux a .�9 � _ t � ! ! � � s in� '. ` ' �,�- a xn rt k '°• a uw�a is S i1M � '� � _� -v.��y K MM R. � C1�st _ nA 4 s ies � � �' -� J ■�nR R~n p a[� o[�� s � •�n M S ^ �`• � s wn � ��.7 � �V `. � � � I � }� rcMa -� - CN�1 �i 1� It1M [ VW L 1 1� -_.I...� � � Fql � aWGL M 1 � 8 y . T y(iN SL C � s m.x iw.n a :n.s { �t��u J O^ J „ � M S IINSI It1V �uY 1 � .t�.� .�._ � 1�4 M K1� Y[JtlY C IY�M ��•�•• f M s f ill�� iW 1l 1 { '� c y al� ` � LL1� F � �rr 1C KMP � � n � p N� INw Y � ` 'ti � � K Iu F j'-+_. '� ` R � �y u �L � ♦r } � R MA Y� tl .. � '. I�r � J 3 f I j � i , �!!N R A � � � iw]P f• . � � q � �ar� SR�+' � y 'a i _ � n'Q� y 11 �� a ix t r ... w. r f � � �--R � i� � �� s � � m,,� .� f � i� w i t � e ° '1`,,, � "" � -�w�� a , e . � K ■ ��. � y� f ,�� t� €s `� ; 1 ,•-��,� � � -- �i j � ., � �� , .��,a � � •, �, p � ! YFlIY � � q 'L 'A IW�M swV■ {. �'.,.., "`� M �k4A ewa �tl1�il ' .� �� .. a �'+ � �� 4 ISI L 1 • F �$ s . 1� ; d ,,A„ ` d . .:,. � �:„ • ■i.N ' ` j ��J _ ` •'�1, Y h1 F { Q-- � .� ^ ' � •S�� yy11 q� � '`"m'sr � / . � Y ' __ ' '4w'� y<0 ' ,y.m'� �� M4 M y� tvs q I \ 1 � �,3 ;,; � � �' *,P , � � �� , j [UrnR �Sl.�w I '; .�-. i - c`s�� 1---� Cin, S' p � h. ' � i,, \ ..i.. truMn � I—^rian I � ; .� ��r R ' ,a ` h 3� - � ' y i ' ,.r� � iw►g j a�o�n � . � .'� . l;�~ ' . . � b � �.\ ��.' .vt�n . , i1WY ; � V t Y 1W{t w . ��. ' � M � .. l_ 7 � � �a W�/L 4n�11 Cl�` �t�fl� . a ' 7 ' � _ 4 - � ��.0 � ' , .. . /� � • � : _ ry :.;�.�. a� `l � M , , , . _. . , , �:� � , , �, : , � � + �:.�.�o �r �� + `� �1. .. L � � � • ��f �� '`. � � � a -� , . - � � i 4; '�j `��' � ,�' �•- - r 1 � , si.wf '� r'" . � a� ... ' � •��..�'.,., � . �s. ` ^ Y .,5�n � �i�n� 4 f �� t ✓�� .��i�, ' � �..'+� ; � L--, + 3 I S Utl L � %� � , � ` � � �`yu�y y �,\ � . � � � f ,p, t �\7i9 ,� �� \ 4 l Y � � �f'1 + � 't�.,5 .� �� —;' ° _J �,�� `� . V " Q ,x g"' -,,- " � t a • , 9 I' ��.: �. � � SDq f`/` R]Yi� � � �e � e�i, I `\ 91 'y: 1M Y � �N II IbN Y MM {I!y - ' ... Cf f I�hl 0 W Iw n �� ,� sa�n ' ^ xiu.y� I j]� iiWsi � r �n P �4� sOn � � �' � �� a ia.a � ■tw.v r ' 8 r we n ;��Ary�" Yrern I ; � i � � �a 1 � M M �tRY Y Y � I�, �' y j I ...w�a�. ; !IW j � j j j ♦ � M r�� Yi �5 F M ' . + t, s�► ` �.f . M � � ilOtl � g � T 1 + S � + - � � r y f i � - t Z �aa.� l w r s�ax _ +� a �♦ t1 � � i� � � t 4 MF Y �, E Yw P �;: c j '{ M s� I ! � � M M p tMO0. � � l S �♦ fi�lYw ¢q tWll I��y j r�.� t N\ \ �-0 !j� ' i R IAO Y .�. II 110F f i .�y f -.�� , f ` „ e ir,rr , a w . o d s '�� 4' M,s � qi I q l �� W m+^ ��,n �v ,r r s+w » ns�s j i I �M ,f' = i�B � v. t/�� e m n � ' � � -- �xJip y � � \l .7 ~p mY11Y111� h' I �� '`�� .0 r� � ''� w M � Y ' ,, � �� •��+ d �4 r w r w ':�'�: �r } o � -;-t'' � J � d ` w . ' nn u ■��.. ixu '� � - o��s ' , i � � � - A � � � �. t _..�4 4i m iew � 'I W _ . Rir� !on r ir � rinnn �' P �y'V ..� � ■�w• - w � xasl ,4+� �yy 4 s 1 W . .0 yu^ I S[IYN 9 j [�Y Y ff MOIi n w E NY� y S luI � 1 � � !i4N a � , `�R P S M �r j Y ',�� ■wus� n'a'r. ¢uwtt o 0 y INN A fW�a � / (�� [�1�n� �.�1,• 1411^ !W�■ � - a , YVMN . I�: W q � tWA � � '+F t�.i c ii�� ` ! IIIMn �,. { '4 ,..Q � a � " � f1�lYL ` i � �61 �� _ �� Z � f� �9 � � y � +aY i j.� nli Y ` �_ I M p � �' � 1 Ll.. -H� ,,.,�u s . � r i � 4.s' j H � _ _ !1 �l�A a ! W II IKI i !M�1 SI _____ ! y�'F'� „ ]Y N1\f1 !� `I , i,. _�___ feM — � ^ i 1 � f �'yyy �Y.��y � • � W p 11 M _"___ /11YI�� , � � Tj � \ � i � f � Y NM�9 G 1�u Y � } � L ' _ \ Q � i 1 M W � � f C '^'�S p � f 1�n . . � � y�� tc iwui P � R � �x �cw uV � `�., � ~ " - . f�L � � 1 Si0lL ' - !-••••'�• - R�L ! fl l Q r S ffiI y�� M W ' � � �'w.-�""J`�`�—^ fi ' Y`bn I S II 1Y L. � swa ; s n` S � a � M �men' e,� p rsyn � � � 1 f aw � = ww a _ yy ��!.'i a^ 0 75Q swWv ; faxx � 1� $ - � 4�� r� ! r mwn a J G4`� o,�, Technical Services ----- City Limits * �� PlanningBuilding/Public Works � High Hazard R.MacOnie,D.Visneski .� January 22,2008 . - . . g _ % � M �,�!':1�. .' . � � _ r s w W i � j � q i = • -_ ___ .-� i _ '' '__. '�` � _ .f � - � ' Y� n a �/ ti � r . 1: Y �� Sr � � � T y� � ue - - - ,y! � � "r f[ u'' � � _ o " 4� ' — � A , ' .. _ �n.x � :- il 1 � a� ' " �"°`�e i .-._ _��... ..� 1 a �-- :. . ///� � �.. a y� P ' �� = � ..- - V ' ' . "� ._ � �11 R]S+ � L ./ _ � _ .. � _-.. -- V.r i �� t � ... . ^ � , ... '_"j- . M � �*y+ 1 � „ ! - - � R � .�� 3 ♦ ` ]� __ _ a Y]1U ! �, J _ !L` � ' ' " " -_ - " �� .'I 1 mm� Z �/ _._'- ' .. -' -__. _ 4 . ' 1 S O . , �n . 1 � t,� .�_ � �',�,�•" __ ' __ '_ . _ �� rmxk ■ uF�� ` li�Mr __' '''_'___'___''_-_'_ _______'______ �u,y �� __ _' _ - _ -_ 't� .�.•/+. '- __ _ ' '__ - _ __ Y ... ..__ 1 M + "'� �C _'- _ .'.. � ' _ _' . . . . ` ,' .� W j M I , � �/ � • -- �--'- - ' - - -------- -_- -- -----'-- " - -- - -- -- � ----_-'--- -- :: x«„n� P \_ ! � � �E f � M . _ _.__""" .. � . ____"_ _ -- . _ . . . . -_'_ _ _ _ ' _ — --"- . _ _ _'_'_ _ _ . _� ' _ _ _ i , c p j ;a.. �, f I� ♦ � e�� ._. . .. . . ' . '' " _ _ - _� ' M ._ � ._ '_"____'''''__'' ' _' '_' __ '__''___'_ __ . .._'__'__''_'' ' _ ` '"_'___''__""___ ._ ..'_"__" .'"_'''''_`''""' __ ___"" '_'__'_'_"'__''_''___.. _" __ . _ _ .._'___"___'.__ ' .___- ' __-_' ___ v . i�ufl __ -�-- . .__�_ -•._-. __ ..-._ � __�___� - - - . 0 9 • "._' .._'__"'_ '__ _ ��^_'��_�� ___ _ . . Y My1�Yl 'R+-. _ s[ s1 S� Y '� -r.. ��9 . i �. ____________ ___ U!N R i � _ __ _� _ ' _ ' _ �__�___��__��___ ___ ' � _ __�� __ � __ ___�_______ ______ _'__ ___ x Sv �*� � � 6 ��'�� - ------------------------------------- - - - .nbs� r� �"''.I - ( d y '�, '`�M�, r.� a -- - - - -- -- -- - - t '�` � 6 - - -- -_ . _-- .._ --__-_-__- -_ -_ -_ _ _____ --- -- - ---- - - ---- _ _ y .�. , y� A �� --,,,, , R >. �p ✓ ri�n � ` ) ��„I,,�� ;.'�� t �A ________�____ _._�_________ _ __ _ _ _ __ _ Mlu1 �� . ��r'' - — �1E p 1 � � � II � -_-�N.i��SRll�a2'i�i�� _ - - 4 —_ .Yi - t f1N f�. � � _ __ � _ . �j ,... 1 . Ru i� tl _ " . . . . ..iw�� Y lY -._ _____ ____.. .___ -- .�. -- _- — � � � K .�,•�`,�� , _ .. _ ...__. . ._.. ..__"'-...- _-__-__ ' _`_`��__�__ _ _ '.. � � __._ ___ .. „ _ _ _ _ ,. � H 4 � J`�.. ' _"'_ __ __' _' - . . . _ �caa� � _ '_' _ '.' " '_ _ - __'_ i M NY N� .Y N ��rVk � tY�A M -- .-.. _ .. . . - . ____ __ _ �r 1 �'�. iEI.M � � � ,�j ,� 'y � $u Y! i(L5�1 Y pM "_..- _ _ ___' . . . f ��. :`,. � N� �:�' � L � 1 E91�11 � �_ - _ . . ...__�__ _ ' __ _ a� ��f1 t • � n r�+ ^ � __ ' ''_'__''___'__'_'___' _ ' ¢ P � S� � � ' - =______- -_ -_ j � �-�"`� �. a K.,W 1 Y _ � � � � T . �-� - ----'-- '" - - --�- �_ �- - 7'.r� \�. .. - -- ' -_ _ -� rr � �� a 1 rtu wu;• t � 4j� i . � t,- - - -__ - -- � -- :-y j� '�� .. ��., * ay ■.A � ! ��, p � � ` ,b -_ -_ ' { J � + � '� ' ` � . _' -- __' � F � 3 Z d � � � o[� `# � � �•+ar. i d , '�' 4 S��SUL \ . . _ _ _ x.��t '1�� Y� !\ Y9' �` `�ltlL � 1 � f L S il _ . __. - `� / "�R n ( l c �• I IMx� s ^H i IIlM •\. - � - J � �� %. ,i rM � 11 � � tl YLIINY :'Y �n I � � s iu.n s i ", ��'�,`%'.� q 7 a �' � s ee� '� - s i � ' j Y� :i�ri. S L � ; � ,r.m a I[10�la nR I[ llp 4 K NM i 1[ M ` MM■ a�l�u M f I1N{I R w 0. � I SIIhY n� iiYY R' = f iiM G101iA ,.1 � �� iEMl Y YY — IM S �\�G e s �4F : ti 9y.f1 n' Qf110. p Ei � ' x f f i1Mw � � .�.�_ � �L M M1 � t � : � ■ I f�� a IlM �:. � _ M '.� 1 ,t)o y � i • N�nY � Rtlltt fA C a �Y� j � Y51 S rty L i �f� • K1FY 1 � L i t N ' s�m�.ai �uw a �, suw � i �iw*¢ ��j �f�n 4^»� \ K �nn j._.,_ � � � i� t ns.a us1 �w^" l "� m ic ro e t � ■� � n i � �xs1 n irs� ti � ��',1 � t �c an � «' �, INN 11M A Y��Y n A S � ��4 A r' T� IE !11 4 111 j �►Mf � a� �� r� a I !— M.MR 1�a ti �sin n � q � �cr, (� w � . " � , � Mj� , � s u n a�y j •� ' �° y ` ,n ! 2 ! , � ! � w ..r ✓ Y ¢ �w � .��- q • a t�1i 9 1 f `� ' i r : �� , Y r ��'s ` � ':.�,� w��' �i, y � • I � _ . • j • i a V� � + x � S1�]I l� ' t1i1Y t SI 5 lV.a fi��w J � K — lN f �M itl Y T/ E tAW l y +uroa ,_ � �' �w�• .a wo ' Y e_ Y � ��axr� 4 rrHp � f � � 1 Y �J�"� � � � j fi.i� 2 � � � �,�: e�a uadn � ��`� 'f e ` p — t i_ r s r.n ,w,�, a1� ', �a� �j.� r a s.a ~ J � .a,��,.'�' ' _ ---� y 7°M M Gon R '��, � ' ,H� �� - , !f ,.'� EI . '" ' � k ,r_•_. �,' __ iq 1•' •• •;' :l ,; T q�mP � � � M Qti� � _ �p� ` C 8 AN H. `� . -"J� � Y� `\ ,i A _ � � Asnu � - . ..� Y iwn � , � YL1Mn ! ' ..: /; w :� •� ( "� .,` 'tiy t `�'�k{�}, a��a* � � �[tMn n � N '7is1�~ � - r•\ ,� '�� i , ��_ + ;4 �y��y�1�,��y�, xim.eu � , R l. ��1 � ` ,Q,� 'M... , �r � ! Y tOV R n .�. iW9 I l� }� � i � ^ Y % # i �Yi R Y1Wl` k ' ` `�. y � �� ■as r�" �'�� r�� i� 1.— i i �.� � t_ � p� ,-� � ;�,� � , , n.. � � �y *�n �� . I .. � �,..� -"` ,yb, 40 j \ ' �r} - �' l . z.. �r `/1 __ 1� 1 � 4 � �` � ,• '��. V � :cf -/ 1P \ ♦. �' -Y�ra n Mr , r- 9 ��a . l . ' ,�r �' . ;t$ '-��;..,,., d T � l N M� A fLu L , '4tF� 4 , ' Y� .-._.. � � i isN I ! � �4. �'°f. 4 . r ' � , � 6 A c. l ��' �,�� . .,� t �y� � i `'��+��1 �i'ti+.'x � a ,,� i 4 f '�'� � � l/.4 I ne " �v��y . � � . .� ��- d rT°''�} + r�en a .�. � '�� .! ' � ' ,. O A , ` Y�'�' _ ti-J � � j � ; n ' a � , � �~ � TM L Y�^ � {tY L � I,I Y.iyln ` 0 /�l\ : SAifl� 'w .�� ,� �� { �n.� .a.�i 1 %y�..I_�Ln�' •tt�ity r `� = a"°� :�an c nxi� y. w �nv� mWn ��t�..,,� � p i ., t.��. �. , � 9 f N M r ■w�. � ma p I�° �14��. .R r:>.t ' j II W L j¢ I � 4 iNr A F � `+ � �q fi!I�31 u � . SSa� .�IM 9 ' W• Y ItIP�l ! � ly ■MN A, 9 ( � � � z ner a s irn _ �� r +l p im I � � t� * � 3 a a • �y s b a�n r � . � [ix� f �,_ : � M d � i A��, sc i°"�n : � a 4��, � � � .,� � 4 ± � � , _ - ' {{{ s�,e� �7 Z .,.e,■ e sl . �► �i w, p R �y aa �...I W M M k { .F�.ia L a J � ' 2 ! ■�.a .� � r r r Y uw�n Q � FS '1q �ra..m w.� � x n.n s Y 1�4r y fl � 3 y� a ,••! , f31M R � p \ �O p�8 .. E� =IAeL 4 ,F�ly�' �4 �p e E � :im+r w 1 `� , � � w�man „�n � � ,p f r , � r m n J'�} � g ` �+r, � ,' r�.�� A � � S = '� Y M �;4IINl�l1� + ns+n J�� _ C, � � L iNA t� "r � � � Qllilq 4 � � i�i .�� .f , I � � ' o Al1�L AIWG - d. M a X y � G11�MP � '_' ��.._......... . ` f�_ 111Y w � w , si us .7 G\ � t ! t h � j A �mna f I_...�v � �� o y� L , .1 ' � J - � � k a � YIp9 4 IA A / tfAM1Y ��' � ^ � ( - � � a�u• xirr 3 � i�1 M / / • S '� �� ..��jl{'�' z = a � , mx. ■o^ i e�m� � ,� s p """ ' A�-� � ., •�'*� t rsix � � y+ d• � � . ti_ . � ► J .�. �•:� '�y`.•� � YIWni .�cY'� F M�tl �11111 1 YYNT �W 1 '�, 1� �� Z IIN Y � � 11W51 .h,1�q f 1 CY� f 1�11■ � r� . Y 1N 11 � �i� !1�Ih SI f i�r 9 � � �' � �. !��n r.'a � •J � I 1 a � � : .. , � v a .,m a s rw�y 8 ��,�e'�.'is't`' = v _ ' �I S j � � s',�'' � S - SIWY � Slfinfl�`.,`•� r1�."�:..5'. y � � �q E�Yr51 Y�fii9 .. . ! , _ ____ ._" � ! � r _ ` �w��a = j � � ! � N M cp C �/f __"_ SeM ` � . �,.9.� � Y R1SM■ � � p � j 5 3 -- ei�sa � ;�r�..-.,� � :n�.a rw.r � ' __. . � � � �� - r r s °� 0 30 � � z 6� � �� I�e � a:�. P _ t �� ,° i A „� a � — • � $� u � ---_ - •— � , LiWL _ YIWM i i L � � .�., ZJ� U Y bl�Y t f mM S ml w M w 1M ___ I ti r�rm��i se�ces {�>.�zr� Moderate � K'np County HazQd � � � PleminplBulldinplPudicWata � �"rj�1 ----- �/ �JR11tf R.MecONe,D.Vfanesld —L Jenuery 22.Z008 - VB�y �y�, �Y' - '� -`< < ��:�� .��-��: �� , � , � ,; , - .� � ,. : � � , . . � �� s ' _ .�«�.► ,�! � ' �w _. . _._:__-�. ----� �,,,, „ � ,. � .,a,ba � ` ___. --._.... ---- ;� {:n,.n�'7 " `. 1�eMala�r, �/,�' !" � ,�;�h � � � -- � -- '.. �� /i"��/^r��' � � � ��T?�s�o-7J�'��`i j� � r�\�'A�� iC �Y�M1 � �11�fbMIM ��fy i� T;"„� ��,.{'��;f�j��y�f /f ,�.- ,��'��/�'+ �,t�, . .+RN�R ' dAOGdNM � � Yj'f�'��!`��" � ^ ,�y�;/�,r1r�?'�i�` ��'�Yti � fr'F,✓��..ww-,� ..�Z �} ��✓�1� K VIt11�101��A1� � �ff �'f�f�',l�''r ,�/'� ,r� � v t: f! r�.� � �J !j�Y..�� 8�8i1�1�0 �`r�%� Y'�;'l i��''r�. rr{;,�r�yc t�� f�f/I,i/�� '''�r ,ij�/� fty� ,a.� .�� /`,.r/ r''l`� /<iA.,+? �,��4 ��` ✓'�i�/.✓/ l'.s ..fi.flAllR� �M� . - 6b!lOYh r �.^.� cC:�V�../��?< �',y+/`i�t"''/ '�'. .r''�/'✓� � /�` .� . y �' „ , >�/ ' �1 • > �:7/,+��/,/�-! y. �k��,'1' "�.��',.if�+'rr'��1,��'l�f,r�� 1/},J'�%a � : � .n:� NMR �. rr�,r ..,��`+C �rl /� 'f:,� � .�" /�� a�! � ...... ! � ,++++�w�r.�`.� �..\�,a� �v�/�Y�f�i^ f/� _.^' r!�r.`..�T� ��.. ,� y� ....�NlfllM�.. i!� \ - ;��rSC'!a,CN�+'/ TY,=rC��i�j✓'f ,/�✓-.��.rr , . ,��..g � � __-. / \`\ �� {�/��\ / �'.'��jr�^i i��,��fY��x��f.�i',�I��,j? R � � . ..��YMt.. �OM�k � \ `�~� -�`�;� ,�,,� �. � -itertmn , �; �`�� `fi-�y,yr�"``��`��" 1'l�'��a�,,� , e+�oa�.a., �� , % � '}. `� ��.�,� � ��.. ��'� �\�\:� `: �//;��r l,r i�`� � i ��J -.:- � 1 i `1��- + � \ti .� ;�� 't ,• \ . � f', +',f i / '_ * ,� � �. , \ ...-:. e \�\\ �\� ` \\�Iarir�r�`� ` ��\�. � �� ,/,ii' l ��,`,�'��it�•lll�/�E��,�;��.c��r�,,,J.,�� +:I�rS1l�+i� ��;� .� .�� - `�a. �,'��\y� .��'�� \.,, ;.��;��\��\ ��ri,'�'� `'�i'"��"�'i/,✓ii�,�' �/ �L'IrlflY� � ��t�� x .:, � ` `�"��' �� ,j'��;��,��,`,4`^ ,' ,�a "`� , . �*:��r ��y�. KrV..C4;+41kc r'� �J Ofri Y� t ?t:Z( '"�V'`i t*1`l�Y`J y . ��q�fJ� j� � h}�"c k.V � ' 4 ��`' 1��`� . f' y..:F Yw 4��'K ��f.x � . R ��'k 1 �'�` � tiA �F . . �� ` ly�r ;�.t9'� "k'au ..F � t.� �/� ' .vy � , .' p ti .�.A . . . ..� � y'L�, i A� � . ��' �QU � �t �• Y :'\ ;�� . . � �N� � ?^�' r S �Iy �-rn �� ^ ��'I' � T� �, r �..«�� a`, `� � � r� � �� k ;;tir, i�, } "�,�t� '� �`) ,��'�-� , � � *•* 4� y � � ��' � ` [v'1.�' f+r� l�rmc ?f"' ��'�'� � 1 ,4., '� '�'i"'< � ��'�, WF K��: ��'. �.L � ��, L r �� P?h'1 > :1 \ 4 y,w �'T��.•1G._A,/�,�l X � '` ? ;.;y l. . �7 '�..,`^ 41,�^. �' � ��n \ .` � Y!� ,<T` :f'�.14��yA r y�/'4\4".,.��r,,,,c'`'��r a s��2�x ,t< Yl� ` .��r-�" '� , ..-_ \l�� y�(�... * " � ^'.t�� '. ; � �'r r`V�i� ✓ ��',"a �}x'Sj `� � 4L.�` r , : �, '�v ��t*. , � .,- -,LAY .. 4 � )�h t i � 9�R9. �d � . +, t �A �� c � ! :�a y.^�(J.�� _' .-F T 4� . ,�._ � �..�{i r1 �,: �f �,k�7F•� ' y.,v5�! y '. , �1 �� `Ry.��,� " �, + ....1� " < ".�:L t�r f f J. Y1�}�.}u< � r''r'i i w ..r y-- �: �`R �� ♦ .'^"�,i7 � .�✓ i�N. � � \ �` j � ! �/MN�,4 1;� � ��l��4�; X��.7,� � � -'� � �`' > *�� c '�'i '� a�X`y�r �y .Yb � r ..AMtlNR. -. i' �`,/. ��E` Z 0� �(�' ,,,.- �4 � a ,.( x' r ., �� ;:� r e��.. .;, :,�� i`+�. �,: ;j ,.rJ,+/��Yi9�/,�j-r�f��)t'�i��+t�� 2 � t7��.i �i�+ria' ta��;�i/r�''�i�i'�i�c�y`�.Y��✓��r,F"%i/fi'�� 1~�..: , �i f i/r I'� r, � Y; 3> r � y. � ' � �!� * �� .`. �, 1;} � i. f :r r�? '` .-r �., � j . , _ �' � - ; o � . � ��, . i., I k �- 9 ,� ^, �f � r .. . . �I�IM/� J:� Mr. � eF." ' i w .�,f� �,� � '�F � � � � ' / ,� r''rf!. J .. tj ✓ {;,/s ' d + "�� 1� �'/.:� "r r.�!��' � / •r � ! ��i;^// �;' .) .• � �..�� ,.-.ijj ��,..�.....�1-.-, � �� f l •�'�� a �r,� r.`��/ ;:r ` � ik' 14 r r ;� �' ` �, ''`' �"' i/i f�, � y� f f rf �� y ��:�, Sr sr ��'qR�t. �. � ��'i � -� �, ,x � . :� A�' � v..�� ` .i. ... / ,('3 �� s �;: i r . Yf �/' rh'. - 3 r �r:; s . i� �j`.�/J �' ,� J�'�c,%/s �.�� a ♦' ...._ .Oi.w10� � r � �: /�, .� �'�C i x'. �". � :�. . .: � • , ✓ x f N .. r .'7„ � {:(� a '� � �� / _. IY� .� J . �/:•.,i � �� • � � '�� .14 y��J.4 f,t .: 4 ♦ :.� .�, ��'; � ;.;; __ ��i ,ji,'� ! �lA, �4. . � �: ,�;� � � �� r ` •, 4i iR � � c � � � �� 4� � r',Y r �, ,�,rh ��. 1G1�RM��o+nq � .88 � �, ri �. ✓ / .'�rr,�_� .@ y . �-N �`. . 111f11tq.. � '. �. :� . ' n �.� 1�IR:. 1 m &NkliirfxNon.1 i��CaF�trN:hn.ert�'1�a tiy q. ounY? um�avarefYo xWmesaotl .uibiau�meennyenn IiwUW�:�Kdp� un Ineke.sni:rePrenen ansm��warrettY�n,4rWess�ir rt �e n# .at,��veny,�a �e �aa t�ux vn.pr 4�mf1»i�aroof�smdMlo�ma i. a wunluq IaN1 ��IB(�((btl�of uM A�p 54Wny q'9dUct,�V (�WRty�57Pj � � '- ' I^ p ba) �oran � 1 1 r ^Ut Wbk� Y�^�..p+�G nf,i tRmd��G�dM1Bl:Of o0 9eQupnpal.�ry�qg�1�14c1fiq.M1Ut int irtJtsd 16.IusL revo�wyo9 of WBI.proR!t rtsUitlri9+mrt1 Un uan o[m�evnn Ot ihp�in ol`�+110n wnlpit7x+J�.ty+(hiy mnp.My 6Ne uf Lhi9�nnP e(NM1%'nallon u�Itdi �� P ■ V� �+� u�uMnwea.+�canr ny w;amm�r.rmham�ot A7n�rauc�,iy. _ �N�Ig arV�1f1� �4❑nh1::tlidtOl�N 8na�c•IQ�q1CuuMyiMAf+.6nnmNlNiAuwY(MR�lAw�w.mA4�o�/@I�fMY .. . . . . . � �.. �i _. � ,� -� __, ._. `i � �_, �� ., �_ ,_, .: �_ ,, ,� � � " _ ,, � . � .� v. ��/ �� _.,. � _, ��% ,_, ._. APPENDIX B KCRTS Output i ; ; � ` ,f�-��; . ; �� , � , ; ._. ��.; j;_ � , �_�, ; ; �� l ' �_ � ' � �� U52�Lt�il r.r3�+ L7 ; � f � '��. ,;- �-►�ea--� ? � Till Fores� 3.02 acxes; i Till Pasture 0.00 acresi i Tiif Gross 0.00 aaes� Outv�rash Fore 0.00 acsesj ' Outwash Pastur� 0.00 acresi Outwash Grass 0.00 acres; i Wetland 0.00 acresi Imporviousi 0.00 acr�s� �_.. - _� Total -----�� 3.02 acres; ._� __--------� Scale Fador: 1.00 Hourly Histnric Time Series: PRE.tsf » Compute Tlme Series __ i - -- Modity User Input � A�ld Command to E}CEC file � ,.._ __..�_.._.�_..----_.___.____.--------.------•....---.----._.._. __..r...___._.__.____... � File for computed Time Se�ies [.TSF] V�V��r 1� �/VL711 I�VV •J�VJ+ !J �L� V�VJW. — G.;�sS �5 11�7/98 11:40 �?.Q47 54 �. �_�1 �=�.`311. Comput�d Fea.ks 0. 24I, 2f�. Ob ��.�� CO1�puT_�d Pe71c5 0. :I]L 50.��G ��.�F�� computQd Peaks 0.182 25.fl0 �i:.�+6� . � Ct�lput�� Peaks �. ].�74 ��a:.QQ �;�n 90� :0 � Canput�d Peak:S Q.136 8.QO C�.875 �.0 COBIpUt2d P�af�3 0.115 � :t,-r, �3,��_� p COm�,tt�P� Poz�S 0.��?� 2,t30 Do 500 :0 CompuL�,� P�at'.s d.(}49 1.?�� .23� :0 E. _.. � land Use�u^�inyart� �m .� .,=, _ _ _ � __._. � I-,4rea-- � � Till Forest� 0.00 a�xes� , Till Pasture� 0.00 acres+ Tilt Grass O.16 acxesi � Ouiwash Forest 0.00 acres; � Ouiwash Pasture� O.DO acr�s� i Outvrash Grass 0.00 acres� Wetlsnd 0.00 acres� lmpervinus� 2.45 aaes� �.__.----_—J Total ----, , � � ,. 2.6A acres; ��' �...�_..._...�___.J .. r�- Scale Fador: 1.00 Hourty Histo�lc � Time Series: DEV.tsf » :� 5 Comput� Tlm� Series , `� . _ ------ __ --- - Modity User Input � Add Command to EXEC flle I .._.____.._.____—__.___.�...---._...._..._.__.----_..._...__----.-------------------.__----___.__... i Flle for computed Tlme Se�ies [.TSF� y _ ' �� .I�1a��_.CL' • o�_-' �..�F--1 � -• m - O �r��\ t. i- ••J: a��- Q ,�-. �Y� •��• �7 f � � a �� • C�y • ♦ Y • ,,`' S O ��`s` :� v � �` ' io� . n . o "` _' - o '� �`�<� $ c �0�° 10 t '�C� 90-� '�D� �0�� 5G�' ':7�e;��l7y_xtP6ca^.ce Retention/Detention Facility Type of Facility: Detention Vault Facility Length: 114. 00 ft Facility Width: 114. 00 ft Facility Area: 12996. sq. ft Effective Storage Depth: 3 . 50 ft Stage 0 Elevation: 0.00 ft Storage Volume: 45486. cu. ft Riser Head: 3 .50 ft Riser Diameter: 12 . 00 inches Number of orifices: 3 Full Head Pipe Orifice # Height Diameter Discharge Diameter {ft) (in) (CFS} (in) Z 0.00 0.95 0. 046 2 2.22 1.75 0.094 4.0 3 2.79 1.70 0.066 4.0 Top Notch Weir: None Outflow Rating Curve: None Stage Elevation Storage Discharge Percolation (ft) (ft) (cu. ft) (ac-ft) (cfs) (cfa) 0. 00 0.00 0. 0. 000 D. 000 0.00 0.01 0.01 130. U. UU3 0.002 0. �0 0.02 0.02 260. 0.006 0.003 0. 00 0. 03 0.03 390. 0. 009 0.004 0. 00 0. 04 0.04 520. 0. 012 0.005 0.00 0.05 0.05 650. 0.015 0.005 0.00 0. 06 0.06 780. 0. �18 0 .006 0.00 0. 07 0. 07 910. 0. 021 0.006 0.00 0.08 0.08 1Q40. 0.024 O.OQ7 0. 00 0.09 0.09 1170. 0. 027 0 .007 0. 00 0.19 0.19 2469. 0.057 0.011 0.00 0.29 0.29 3769. 0.087 0.013 0.00 0.39 0.39 5068. 0.116 O.Q15 0.00 0.49 0.49 6368. 0.146 O.Q17 0.00 0.59 0.59 7668. 0.176 0.019 0.60 0.69 0.69 8967. 0.206 0.020 0. 00 0.79 0. 79 10267. 0.236 O.Q22 0. 00 0. 89 0.89 11566. 0.266 0.023 0.00 �. 99 0.99 12866. 0.295 0.024 0.00 1.09 1. 09 14166. 0.325 0.026 0. 00 1.19 1.19 15465. 0.355 0.027 0.00 1.29 1.29 16765. �.385 0.028 0.00 1.39 1.39 18064 . 0.415 0.029 0.00 1.49 1.49 19364. 0.445 0.03Q �. 00 1.59 1.59 20664. 0.474 0. 031 0.00 1. 69 1.69 21963 . 0.504 0.032 6. 00 1.79 1.79 23263 . 0.534 0.033 0. 00 1. 89 1. 89 24562. � . 564 0 . 034 0. 00 1.99 1.99 25862. 0 .594 0.035 0.00 2.09 2.09 27162. a. 624 0.035 0.00 2.19 2.19 28461. 0 .653 0.036 0.00 2.22 2.22 28851. 0.662 Q.036 0. 00 2.24 2.24 29111. 0 .668 0.037 0.00 2.26 2.26 29371. 0.674 0.039 0. 00 2.27 2.27 29501. 0.677 0.043 0. 00 2.29 2 .29 29761. 0. 683 0.047 0. 00 2.31 2 .31 30021. �.689 0.053 0.00 2.33 2.33 30281. 0.695 0.060 O.flO 2.35 2.35 30541. 0.701 0.067 0.00 2.37 2.37 30801. 0.707 0.069 0. 00 2 .47 2.47 32100. 0.737 0.080 �. 00 2.57 2_57 33400 . 0.767 0.088 0. 00 2.67 2.67 34699. 0.797 0.095 0.00 2. 77 2 .77 35999. 0.826 0.102 0. 00 2.79 2.79 36259. 0.832 0.104 0. 00 2.81 2.81 36519. Q.838 0.105 O.Ofl 2.83 2.83 36779. 0. 844 0.108 0. 00 2.84 2.84 36909. 0. 847 0.112 Q.00 2.86 2 .86 37169. 0 .853 0.117 0. 00 2.88 2.88 37428 . 0.859 0.124 0.00 2.90 2.90 37688. 0.865 0.131 0. 00 2 .91 2.91 37818. 0.868 0.139 0. 00 2.93 2.93 38078. 0. 874 0.141 0. 00 2.95 2.95 38338. 0. 880 0.144 0.00 3 . 05 3 .05 39638. �.910 0.158 O.dO 3.15 3 .15 40937. 0.940 0.171 0. 00 3 .25 3 .25 42237. 0.970 0.182 0. 00 3.35 3 .35 43537. 0.999 0.192 0.00 3 .45 3.45 44836. 1. 029 0.201 0. 00 3.50 3 .50 45486. 1. 044 0.206 0. 00 3 .60 3 .60 46786. 1. 074 0.523 0.00 3.70 3 .70 48085. 1.104 1.090 0. 00 3 .80 3 .80 49385. 1.134 1.830 0.00 3 .90 3.90 50684. 1.164 2.630 0.00 • 4. 00 4 .00 51984. 1. 193 2.920 0. 00 4 . 1� 4.I0 53284. 1.223 3 .180 Q. 00 4.20 4.20 54583. 1.253 3 .42� 0.00 4.30 4.30 55883 . 1.283 3 .650 0.00 4_40 4.40 57182. 1.313 3. 860 0.00 4.50 4.5Q 58482. 1.343 4. 060 O. Oa 4. 60 4.60 59782. Z.372 4.250 0. 00 4.70 4.70 61081. 1.402 4.44Q 0. 00 4 . 80 4.80 62381. 1.432 4.610 0.00 ' 4. 90 4.90 63680. 1.462 4.780 0. 00 5.00 5.00 64980. 1.492 4.940 0.00 5.10 5.10 66280. 1.522 5.100 0. 00 5.20 5.20 67579. 1.551 5.250 0. 00 5.30 5.30 68879. 1.581 5.400 0.00 5.40 5.40 70178. 1.611 5.540 0.00 5.50 5.50 71478 . 1.641 5.690 0. 00 Hyd Inflow Outflow Peak Storage Target Calc Stage Elev (Cu-Ft) (Ac-Ft) 1 0.63 ******* 0.20 3.40 3.40 44198. 1.015 2 0.69 0.18 0.18 3.27 3 .27 42502. 0 .976 3 4.98 ******* 0. 18 3.21 3 .21 41681. 0.957 4 0.61 ******* 0.15 3 . 01 3.01 39141. 0.899 5 0. 96 ******* 0.15 3 .00 3 .00 39045. 0.896 6 0.67 ******* 0.14 2.95 2.95 38332. 0.880 7 0.54 ******* 0. 04 2.25 2.25 29253. 0.672 8 0.74 ******* 0_03 1. 87 1.87 24270. 0.557 I ---------------------------------- I Route Time Series through Facility � Inflow Time Series File:dev.tsf Outflow Time Series File:rdout Inflow/Outflow Analysis Peak Inflow Discharge: 1 .05 CFS at 6:00 on Jan 9 in 1990 Peak Outflow Discharge: 0.197 CFS at 20:00 on Feb 9 in 1951 Peak Reservoir Stage: 3 .41 Ft Peak Reservoir Elev: 3 .41 Ft Peak Reservoir Storage: 44309 . Cu-Ft . Z.017 Ac-Ft Flow Frequency Analysis LogPearaon III Coefficients Time Series File:rdout.tsf Mean= -1.233 StdDev= 0.283 Project Location:Sea-Tac Skew= 0.487 ---Annual Peak Flow Rates--- -----Flow Frequency Analysis------- Flow Rate Rank Time of Peak - - Peaks - - Rank Return Prob (CFS) (CFS) (ft} Period 0 . 033 40 2/22/49 6:Ofl 0.197 3.41 1 89.50 0.989 0 .079 19 1/22/50 6:00 0. 184 3.27 2 32.13 0.969 0.197 1 2/09/51 20:00 0. 177 3.21 3 19.58 0.949 0. 030 46 2/04/52 7:00 0.162 3.06 4 14. 08 0.929 0.077 2a 1/18/53 21:00 Q.156 3 .03 5 10.99 0.909 0. 035 34 1/06/54 11:00 0.153 3. 01 6 9.01 0.889 0 . 035 35 11/19/54 19:00 0.152 3 . 00 7 7.64 U.869 0 .103 11 1/06/56 11:00 0.150 2.99 8 6.63 0.849 O.Q34 38 2/26/57 4:00 0.147 2.97 9 5.86 0.829 0.047 25 1/17/58 7:00 0. 144 2.95 10 5.24 0.809 0.035 36 1/24/59 10:00 0.103 2.7B 11 4.75 0.789 a. 153 6 11/21/59 2:00 0. 097 2.70 12 4.34 0.769 0.093 14 11/24/60 11:00 0.094 2. 66 13 3. 99 0.749 0. 030 45 12/24/61 6:00 0.093 2.64 14 3 . 70 0.729 O.fl60 24 11/30/62 18:b0 0. 090 2.60 15 3.44 0.709 0_ 086 Z6 11/19/63 16: 00 0. 086 2.54 16 3 .22 0. 690 0.090 15 12/O1/64 2:00 0.083 2.51 17 3 .03 0.670 0 . 036 27 1/07/66 3:00 0. 080 2.47 18 2.85 0.650 0 . 083 17 12/13/66 9:00 0.079 2.46 19 2.70 0.630 0 . 035 31 1/20/68 20:00 0.077 2.44 20 2.56 0.610 O.a35 33 12/11/68 8: 00 0. 075 2.42 21 2.44 0.590 0 . 067 22 1/27/70 3 :00 0. 067 2.35 22 2. 32 0.570 0.a38 26 12/07/70 11:00 0.063 2 .34 23 2.22 0.550 0 . 156 5 3/06/72 21:00 0 . 060 2 .33 24 2 . 13 0. 530 0 . 097 12 12/26/72 6: 00 0 . 047 2.29 25 2 .04 0 .510 0. 036 28 12/17/73 9: 00 0.038 2.25 26 1.96 0.490 0.034 39 1/13/75 22: 00 0.036 2 .20 27 1. 89 0.470 G.035 32 12/04/75 3 : 00 0.036 2.17 28 1. 82 0.450 0.029 47 8/26/77 7:00 0.036 2.15 29 1. 75 0.430 0. 075 21 12/15/77 18:00 0.035 2.14 30 1. 7Q Q.410 0 .028 49 2/12/79 18:00 0. 035 2.12 31 1.64 0.390 0.150 8 12/17/79 20:00 0. 035 2. 09 32 1.59 Q.370 0.036 29 12/30/80 22: 00 0.035 2. 06 33 1.54 0.350 0.147 9 10/06/81 17:0� 0.035 1 . 98 34 1.49 0.330 0.035 30 1/08/83 5: 00 0.035 1.96 35 1.45 0.310 0.031 44 11/24/83 8: 00 0.035 1.95 36 1.41 0.291 0.032 41 11/11/84 8:00 0.034 1.91 37 1.37 0.271 0.080 18 1/18/86 23:Q0 0.034 1.89 38 1.33 0.251 0.152 7 11/24/86 7:00 0.034 1.87 39 1.30 Q.231 0.034 37 12/09/87 23: 00 0.033 1.75 40 1.27 0.211 0.031 42 11/05/88 21:00 0.032 1. 65 41 1.24 0.191 D.162 4 1/49/9Q 12 : 00 0.031 1. 62 42 1.21 0 .171 0.177 3 11/24/90 16: 00 �. 031 1.61 43 1. 18 0.151 a .063 23 1/31/92 6:00 0.031 1.59 44 1. 15 0.131 0.029 48 1/26/93 4: 00 0.030 1.51 45 1. 12 0.111 0.027 50 12/10/93 10:00 0.030 1.45 46 1.10 0.091 0.094 13 12/27/94 7: 00 0.029 1.43 47 1.08 0.071 0.184 2 2/09/96 3 :00 0.029 1.41 48 1. 05 0.051 0.144 10 1/02/97 12 : 00 0. 028 1.25 49 1.03 0 . 031 0. 031 43 1/25/98 O: OQ 0. 027 1.23 5Q 1. 01 0 . 011 Computed Peaks 0.334 3.54 100.00 0.990 Computed Peaka 0.262 3.52 50. 00 0.980 Computed Peaks 0.202 3.46 25.00 0.960 Computed Peaks o.138 2.91 lO. OQ 0.900 Computed Peaks 0.127 2.89 8 . OQ 0.875 Computed Peaks 0. 099 2.73 5. 00 0.80� Computed Peaks 0.056 2.32 2. 00 0.500 Computed Peaks 0.035 2.12 1.30 0.231 Flow Duration from Time Series File:rdout.tsf • Cutoff Count Frequency CDF Exceedence_Probability CFS � $ $ 0 .003 184795 42.191 42.191 57.809 Q.578E+00 0.008 64619 14 .753 56.944 43 .056 0.431E+00 0.014 60236 13 .753 70.696 29.304 0.293E+00 0.019 50144 11.448 82 .145 17.855 0.179E+00 0.025 38446 8.778 90 .922 9. 078 0.908E-01 0.030 24483 5.590 96.512 3.488 0.349$-OI 0 . 036 12768 2.915 99.427 0.573 0.573E-02 0.442 841 0.192 99.619 0.381 a.381E-02 0.047 198 0.045 99.664 0.336 0.336E-02 0.053 149 0.034 99.698 0.3Q2 0.302E-02 0.058 117 0.027 99.725 0.275 0.275E-02 0.064 10a 0.023 99.748 0.252 0.252E-02 0.069 130 0.030 99. 778 0.222 0.222E-02 0. 075 197 0.045 99.823 0.177 0.177E-02 0. 080 149 0.034 99.857 0.143 0.143E-02 0.086 144 0. 033 99.889 0.111 0.111E-02 0 .091 123 0.028 99. 918 0 .082 0.824E-03 0. 097 101 0 .023 99.941 0. 059 0. 594E-03 O.la2 64 0.015 99.955 0. 045 0.447B-03 G.lOfi 45 0.010 99.966 0.034 Q.345E-03 0.113 7 0.002 99.967 0 . 033 Q.329E-03 0.119 11 0.003 99.970 0. 030 0.304E-03 0 .124 9 0. ��2 99.972 0.028 0.283E-03 0 .130 8 O.Qa2 99.974 0.026 0.265E-03 0 .136 3 O .QO1 99.974 0.026 0.258E-03 �.141 17 0.004 99.978 0.022 0.219E-03 0 .147 24 0.005 99.984 0.016 d. 164E-03 0 .152 17 0.004 99.987 0 .013 0.126E-03 0 .158 14 0. 0�3 99.991 0. 009 0.936E-Q4 0 .163 12 0.�03 99.993 0.007 0.662E-04 0 .169 4 0. 001 99.994 0.006 0.571E-04 0 .174 5 0.001 99 .995 0.005 0.457E-04 0 .180 7 O.Q02 99.997 0.003 0.297E-04 0 .185 6 0.001 99.998 0. 002 a. 160E-04 0 .191 2 0.000 99.999 0.001 0.114E-04 0 .196 4 Q. 001 100.000 a.000 0.228E-05 Duration Comparison Anaylsis Base File: pre.tsf New File: rdout.tsf Cutoff Units: Discharge in CFS -----Fraction of Time----- ---------Check of Tolerance------- Cutoff Base New �Change Probability Base New �Change 0. 037 � O. 10E-01 0.46E-02 -53 .8 � O.10E-01 0.037 0.035 -4 .8 O.Q49 I 0. 5ZE-02 0.32E-02 -37.6 � 0.51E-02 0. 049 0.036 -26.8 0.062 � Q.29E-02 �.26E-02 -11.6 � 0.29E-02 a. 062 0.055 -11.5 0.075 ' 0.17E-02 a.18E-02 1.2 � 0.17E-02 0 . 075 0.075 0.5 0.088 I 0.11E-02 O.10E-Q2 -7.4 � 0.11E-02 0.088 0. 086 -1.7 0 .101 � 0.67E-03 0.49E-03 -26. 0 � 0.67E-03 0.101 0.095 -5.7 0.113 � 0.44E-03 0.33E-Q3 -25.8 ' 0.44E-03 0.113 0 . 103 -9.4 0.126 � 0.31E-63 0.28E-03 -9.7 � 0.31E-a3 0.126 0.117 -7.4 0.139 � 0.22E-03 0.25E-03 14. 7 � 0.22E-03 0.139 0.141 1. 7 0.152 ( 0.11E-03 Q.Z3E-03 12.0 � 0.11E-03 0. 152 0.154 1.4 0. 164 � 0.59E-04 0 .64E-04 7.7 I 0.59E-04 0.164 0_167 1.3 0 .177 I 0.32E-04 Q .34E-04 7.1 � 0.32E-04 0.177 0.179 0.9 0.190 � 0.68E-05 O.11B-04 66.7 � 0.68E-05 0.190 0.195 2 .7 0.203 I �.23E-05 O.00E+00 -100.0 � 0.23E-05 0.203 0. 197 -2.8 Maximum positive excursion = O .d05 cfs ( 3 .4�) occurring at 0.134 cfs on the Base Data:pre.tsf and at 0.139 cfs on the New Data:rdout.tsf Maximum negative excursion = 0. 016 cfs (-29.7�} occurring at 0 . 055 cfs on the Base Data:pre.tsf and at 0.038 cfs on the New Data:rdout.taf ---------------------------------- Route Time Series through Facility Inflow Time Series File:dev.tsf Outflow Time Series File:rdout Inflow/Outflow Analysis Peak Inflow Discharge: 1 .05 CFS at 6 :00 on Jan 9 in 1990 Peak Outflow Discnarge: 0.197 CFS at 20:00 on Feb 9 in 1951 Peak Reservoir Stage: 3 .41 Ft Peak Reservoir Elev: 3 .41 Ft Peak Reservoir Storage: 44309. Cu-Ft . 1. 017 Ac-Ft Flow Frequency Analysis LogPearson III Coefficients Time Series File:rdout.tsf Mean= -1.233 StdDev= �.283 Project Location:Sea-Tac Skew= 0.487 ---Annual Peak FZow Rates--- -----Flow Frequenc� Analysis------- Flow Rate Rank Time of Peak - - Peaks - - Rank Return Prob (CFS} (CFS) (ft) Period 0.033 40 2/22/49 6: 00 0.197 3 .41 1 89. 50 0.989 0 . 079 19 1/22/50 6:00 0.184 3.27 2 32.13 0.969 0.197 1 2/09/51 20:00 0.177 3.21 3 19.58 0.949 0.030 46 2/04/52 7:Q0 0. 162 3. 08 4 14. 08 0.929 0.077 20 Z/18/53 21: 00 0.156 3.03 5 10.99 0.909 0.035 34 1/a6/54 11: 00 0.153 3.01 6 9. 01 0.889 0. 035 35 11/19/54 19: 00 0.152 3 .00 7 7. 64 0.869 0 .103 11 1/06/56 11:00 0.150 2.99 8 6. 63 0. 849 0.034 38 2/26/57 4: 00 0.14� 2.97 9 5.86 0.829 0.047 25 1/17/58 7: 00 0. 144 2.95 10 5.24 0.809 0.035 36 1/24/59 10: 00 0.103 2.78 I1 4.75 0.769 0. 153 6 11/21/59 2:00 0. 097 2.70 12 4.34 0.769 0. 093 14 11/24/60 11:00 0. 094 2.66 13 3 . 99 0.749 0.030 45 12/24/61 6:00 0. 093 2.64 14 3 . 70 0.729 0.060 24 11/30/62 18:00 0. 090 2. 60 15 3 .44 0.709 0.086 16 11/19/63 16: Ofl O.Q86 2.54 16 3.22 0.690 0.090 15 Z2/Ol/64 2:00 0. 083 2.51 17 3 .03 0 . 670 0. 036 27 1/07/66 3 :00 0. 080 2 .47 18 2.85 0 .650 0 .083 17 12/13/66 9:00 a. 079 2.46 19 2 . 70 0.630 0.035 31 1/20/68 20: 00 0.077 2.44 20 2.56 0.610 • 0. 035 33 12/11/68 B: OQ 0.075 2.42 21 2.44 0.590 0.067 22 1/27/70 3:00 0.067 2.35 22 2.32 �.570 0.038 26 12/07/70 11:00 0.063 2.34 23 2.22 0.550 0.156 5 3/06/72 21:00 0. 060 2.33 24 2.13 0 .530 0. 097 12 12/26/72 6:00 0. 047 2.29 25 2. 04 0.510 0.036 28 12/17/73 9: 00 0. 038 2.25 26 1.96 0.490 0.034 39 1/13/75 22 : 00 0.036 2.20 27 1.89 0.470 0.035 32 12/04/75 3 : 00 0. 036 2.17 28 1.82 0.450 0. 029 47 8/26/77 7: 00 0. 036 2. 15 29 1. 75 0.430 0.075 21 12/15/77 18:40 0. 035 2. 14 30 1. 70 0.410 0.028 49 2/12/79 18:00 0.035 2.12 31 1.64 0 .390 0.150 8 12/17/79 2�: 00 0.035 2.09 32 1.59 0.370 0.036 29 12/30/80 22:00 0.035 2. 06 33 1.54 0.350 0.147 9 10/06/81 17: Oa 0.035 1.98 34 1.49 0.330 0.035 30 1/08/83 5: 00 0. 035 1.96 35 1.45 0.310 0. 031 44 11/24/83 8:00 0.035 1. 95 36 1.41 0.291 0.032 41 11/11/84 8:00 0.034 1. 91 3? 1.37 0.271 0.080 18 1/18/86 23 :00 0.034 1.89 38 1.33 0 .251 (`�`�. 0.152 7 11/24/86 7:00 0. 034 1.87 39 1.30 0 .231 0. 034 37 12/09/87 23 : 00 0.033 1.75 40 1.27 0.211 0.031 42 11/05/88 21:00 0. 032 1.65 41 1.24 0_191 0.162 4 1/09/90 12:00 0.031 1. 62 42 1.21 0.171 0.177 3 11/24/90 16: 00 D.031 1.61 43 1. 18 0_151 0.063 23 1/31/92 6:00 0.031 1.59 44 1.15 0.131 0.029 46 1/26/93 4:00 0.030 1.51 45 1.12 Q.111 0.027 50 12/10/93 10:00 0.030 1.45 46 1.10 0. 091 0.094 13 12/27/94 7:00 0.029 1.43 47 I. OS 0. 071 0.184 2 2/09/96 3 :00 0. 029 1.41 48 1.05 0.05Z 0 .144 10 1/02/97 12: 00 0.028 1.25 49 1. 03 0 . 031 0.031 43 1/25/98 0:00 0. 027 1.23 50 1.01 0.011 Computed Peaks 0.334 3.54 100. 00 0.990 Computed Peaks 0.262 3 .52 50.00 0.980 Computed Peaks 0.202 3.46 25.00 0. 960 Computed Peaks 0.138 2. 91 10. 00 0.900 Computed Peaks 0.127 2. 89 8. 00 Q. 875 Computed Peaks 0.099 2.73 5.00 0.800 Computed Peaks 0.056 2.32 2.00 o .500 Computed Peaks 0.035 2.12 1.30 0.231 Flow Duration from Time Series File:rdout.tsf Cutoff Count Frequency CDF Exceedence_Probability CFS � � � 0. 003 184795 42 .191 42.191 57.809 0.578E+Q0 0.008 64619 14.753 56.944 43. 056 0.431E+00 0.014 60236 13 .753 76.696 29.304 0.293E+00 �� ._ 0.019 50144 11.448 82.145 17.855 0.179E+00 , 0.025 38446 8.778 9a. 922 9.078 0.908E-01 0.030 24483 5. 590 96.512 3 .488 0.349E-01 0. 036 12768 2.915 99.427 0.573 0.573E-02 0 . 042 841 0.192 99.619 0.381 0.381E-02 0 .047 198 0.045 99.664 0.336 0.336E-02 0.053 149 0.034 99.698 0.302 0.302E-02 0.058 117 O.Q27 99.725 0.275 0.275E-02 O.Q64 10� 0.023 99.748 0.252 0.252E-02 0.069 13a 0.030 99 . 778 0.222 0.222E-02 0. 075 197 0. 045 99.823 0.177 0. 177E-02 0. 080 149 Q.034 99.857 0.143 0.143E-02 0 .086 144 4. 033 99.889 0.111 0.111E-02 O . Q91 123 Q.028 99.918 0.082 0.824E-03 0.097 101 0.023 99.941 0.059 0.594E-03 0.102 64 0 .015 99.955 0.045 0.447E-03 0.108 45 0.010 99.966 0.034 0.345E-03 0.113 7 0.002 99.967 0.033 0.329E-03 0 . 119 11 0.003 99.970 0.030 0.304E-03 0.124 9 0.002 99.972 0.028 0.283E-03 0.130 S 0. 002 99 .974 0. 026 Q.265E-03 0.136 3 0. 001 99.974 0.026 0.258E-63 0.141 17 O .a04 99.978 0.022 0.219E-03 0.147 24 0.005 99.984 0.016 0.164E-03 0.152 17 0.004 99.987 0.013 0.126B-03 0 .158 14 0.003 99.991 0. 009 0.936E-04 0.163 12 0.003 99.993 0.007 0.662E-04 0.169 4 0.001 99.994 0.006 0.571E-04 0 .174 5 0.001 99.995 0.005 0.457E-04 0.180 7 0.002 99. 997 0.003 0.297E-Q4 0.185 6 0.001 99. 998 0.002 0.160E-04 0.191 2 0.000 99 .999 0.001 0.114E-04 0.196 4 0.001 100.OQ0 0.000 a.228E-05 Duration Comparison Anaylsis Base File: pre.tsf New File: rdout.tsf Cutoff Units: Discharge in CFS -----Fraction of Time----- ---------Check of Tolerance------- Cutoff Base New $Change Probability Base New �Change 0.037 ( O.10E-01 0 .46E-02 -53 .8 I O.10E-01 0.037 0 .035 -4 .8 0.049 � 0.51E-�2 0.32E-02 -37.6 � 0.51E-02 0. 049 0.a36 -26.8 0.062 I 0.29E-02 0.26E-02 -11.6 � 0.29E-02 0.062 0.055 -11.5 0. 075 � 0.17E-�2 0.18E-02 1.2 � 0. 17E-02 0.075 0.075 0.5 0.088 � 0.11E-02 O. 10E-02 -7.4 � 0.11E-02 0. 088 0 . 086 -1.7 0.101 � 0.67E-03 0.49E-�3 -26.0 � 0 .67E-03 0.101 0.095 -5.7 0.113 � 0.44E-03 0.33E-03 -25.8 � 0.44E-03 0.113 0. 103 -9.4 0.126 � 0.31E-03 0.28E-03 -9.7 � 0.31E-03 0. 126 0.117 -7.4 0.139 � 0.22E-03 0.25E-03 14 .7 � 0.22E-b3 0.139 0 .141 1.7 4.152 � 0. 11E-03 0.13E-03 12.0 � 0.11E-03 0.152 0.154 1.4 0.164 � 0.59E-04 0.64E-04 7.7 � 0.59E-04 0. 164 0.167 1.3 0.177 � 0.32E-04 0.34E-44 7.1 � 0.32E-04 0.177 0.179 0.9 0.190 � 0.68B-05 0.11E-04 66.7 � 0.68E-05 0.190 Q.195 2.7 0.203 � 0.23E-05 O.00E+00 -100.0 � 0 .23E-05 Q.203 0.197 -2. 8 Maximum positive excursion = 0. 005 cfs ( 3.4�} occurring at 0.134 cfs on the Base Data:pre.tsf and at 0.139 cfs on the New Data:rdout.tsf Maximum negative excursion = Q. 016 cfs (-29.7�) occurring at O.Q55 cfs on the Base Data:pre.tsf and at 0. 038 cfs on the New Data:rdout. tsf � APPENDIX C � Geotechnical Reports GEOTECHNICAL ENG[NEERING STUDY CEDAR RNER STATIQN 1522'[ RENTON MAPLE VALLEY ROAD KIPIG COUNTY, WASHtNGTOf� October 1,2007 Project No.�-9060-12 Preparedfor Eagle Creek Lartid arid Devebpment,LLC 1370t Southeast 253rd Street Kent,Washington 98042 EAR'TH CONSULTWG WOORPORATED i$Q5 136th Place Northeast Suite 201 Beltevue,Washington 98005 (425)643-3780 ToIL Free 1-888-739-6b70 i � s , i EARTH CONSUI.TING 1NCORPORATED ❑Environmental Services Q Geotechnical Engineering ❑ConstrucGon Matertals Testing ❑Specfal inspections October 1, 2007 Mr. Ty Pendergraft Eagle Creek Land and Development, LLC 13701 Sautheast 253rd Sfreet Kent,Washington 98Q42 Project No. E-9060-t2 � Dear Mr. Pendergraft: Ear#h Consulting lncarporated (ECI) is p(eased to submit our report titled "Geotechnical Engineering Study, Cedar River Station, 15229 Renton Maple Valley Road, King County, Washington.° �ur scope of services was to review our previous work conducted for#he site artd prepare this report#or fhe prapased devefopment. We apprec�ate#his opportunliy to be of service to you. If yau have any questions, or if we can be of further assistance, please call. RespectFul�y submitted, �rH coNsu�-rav� wco�oRnz�n � ��-,��; ,�t �,`,�.`,�:. , • � � � � = � .� . �� =�- ��.�/o�a� Steve.i. Scharf Kristina M.Weller� PE Senior Staff Geologist Principai SJSJiCMWtskp t 1805136"'Place Mortheast#2Q1 • Bellevue,WA 960Q5 • (425)643-3780 • Fax(425)746-068D ea�eci-mti.cam • www.eci-mti.com � , i_1 ,t, .-. � ` TABLE OF CONTENTS E 8�60-12 PAGE INTR�DUCTION..................................................................................................................1 General.....................................................................................................................1 ProJectDescripfion .................................................................................................1 Scopeof Services ....... ...........................................................................................2 SITECOND[T(ONS..............................................................................................................3 Surface.....................................................................................................................3 Subsurface...............................................................................................................3 SubsurfaceE�lora�on..................................................................................3 Geo�ogic Map Re�iew....................................................................................4 Earthwork Observation and Testing.....................................................................4 Groundwater............................................................................................................4 LaboratoryTesting. ................................................................................................5 DISCUSStOfd AND RECOMMENDATIONS.......................................................................5 General.....................................................................................................................v 3ite Preparation and General Earthwork..............................................................5 Stripping .............................................. .........................................................5 Sttuctura� FII ..................................................................................................6 Fou n dat�ons.............................................................................................................6 RetainingWalls........................................................................................................7 Slab-on-Grade Fioors .............................................................................................8 SelsmicDesign Considerations............................................................................8 GroundRupture..............................................................................................8 Liquefaction....................................................................................................8 Ground Motion Resp�nse..............................................................................9 Excavaticnsand Slopes.........................................................................................9 SiteDrainage.............. ............................................................................................9 Utility Support and Backfil!............................................................. .....................10 SuggestedPavement Secfions............................................................................10 LIMITATIONS... ...............................................................................................................1'( AddltionalServices...............................................................................................'11 � � ; TABLE �F GONTENTS, Con#inued E�OfiO-12 ILLUSTRATIONS Plate 1 Vicinity Map Piate 2 Boring and Test Pit Location Plan Plate 3 Typical Footing Subdrain Detail APPENDICES Apperedix A F9eld Exploration Plate A'f Legend PlaEes A2 through A5 Boring Logs ' Plates A6 through A8 Test Pit Logs Appendix B Laboratory Test Resalts Plates B'[ Graln�rme Anatyses � ; � : \ : �,,. � �..,:. �._ i �.... � ` GEOTECHNlCAL ENGINEERING STUDY �- CEDAR RIVER STATiON �- 15221 RENTON MAPLE VALLEY ROAD � lCIIdG C�UNTY,WASHINGTON , . �__ INTRODUCTION General This report presents the results of the geotechnical engineering study completed by Earth Consulting inoorporated {ECI) for the proposed Cedar River Station, 15221 Rerrton Maple Vaqey Road, Ktng County, Washington. The general locatian of the site is shovm on the `1/icinity Map,"Plate 1. ECI pceviousfy prepared two geotechnical engineering studles for the site and completed earth w�ork observation and tes#irtg for placement of the existing fill at the site.The first study was completed as part of the mult�-family developmerrt located to the south af the site. The second s�dy was completed for a proposed fueling station that was pianned for the west end of the srte. The purpose of this study was to review the subsurface data from the two geotechnical engineering stuclies and review the field reports from our earthwvrk observations�a prepare a geotechnical engineering studyforthe proposed development. Pro]ect Description The subject site consists of two parcels that make up the 3-acre, imegular-sF�aped, vacant site located along the south side of Renton Maple Valley Road, King Courrty, Washington. Based on IMormafion provkled, we understand it is ptanned to deveiop the site with three single-stary retail buildings and associated parking. Appro�amately 30,OQ0 squane feet of retai! space is planned for the development. We understand the buildings wil! be of either wood frame, c:ancrete masonry unit (GMU), or #ilt-up panel construction with slab-on-grade floors. We antidpate wall loads wiD be on #he order of 2 to 3 wps per 11nea! foot and column loads w1El be in the range of 20 tio 40 kips.We es�imate slab-on-grade floor loads will be up fio 150 pounds per square foot (psfl. We anticipate the kwildings will be constructed at or near existing grade. Access fio the Site will be provitted by two entrances, loca#ed at the north side and west end, of the slte. The west side of the site will !�e accessed from 152nd Avenue Southeast and the north side of the.site will be acxessed#rom Renton Maple Vailey Road. At Ehe time our study was performed, the site and the exploration locations were approximately located as shown on the°Boring and Test Pit Location Plan�° Plate 2. GE70TE�18u[Al.eVGINEERWG STiJDY E-4060-12 October 1,2007 ff the above project criterla are incorrect or chanc,�e, we should be consulted to review the recommendations contafned in this report. En any case, ECI should �ie retained to perform a genera[ review of the final design. Scope of Services Our scope of services for this study indudes the following: • Evaluafion of general subsurtace conditions and description of types, distribution, and engineering characteristics of subsurface materials • Evaluafion of geologic hazards, including site seismicity, sfopes, liquefaction, and seismic settlement po#entia�, and recommendatrons for appropriate mitigation measures • Evaluation of general groundwater concfitions and potential impact on design and construction • General recommenda#ions for earthworic, including site preparation, excavation, site drairtage • Determination of the sefsmic design parameters • Evaluation of project feasibilfty and suitability of on-site soils for fa�ndation support • Recommendations for suitable foundations, including allowable soil bearing capaci�es, associated settlement est(mates, and lateral pressures and resistances � • Recommendations for the design of retaining walls • Recommendations for subgrade preparafion for floor slab and slab-on-grade support • Reoommendations for temporary and permanent slopes • Recommendations for pavement sections EARTH CalV5l11.77NG WCORPOR/1T� Page 2 ANGIMEHi�K 57ZJDY E-906�-72 Octaber 9,2007 srrE coN�rnoNs s��Ce The subject site cans"�sts af iwo irregular-shaped parcels focated at the soufiheast comer of 152nd Avenue Southeast and Renton Maple Valley Road, King County, Washington. The site is bordered to the north by Renton Maple Valiey Road, to the west by 152nd Avenue Southeast, to the south by a multi family develapment, and to the easi by single-famfiy residence bts. The topography af the site is relatively level with little to no discemable eleva�on change. The site is vegetated primarily with ta[I grass. Subsutface Subsu�face conditions at the site were evaluated by reviewing subsurface data fram the referenced geatechnica! engineering studies and reviewing a geobgic map af the site. Subsurface E�lor�tion Subsurface cor�dfians at the s�te were evaluated by reviewing subsurface data from aur pre�ious geotecimical engineering studies. Three test pits from the originaE s#udy were excavated on July 26, 20Q0, and three borings form our second study were drilled on December 13, 2002 at the approximate tacations shown on Plate 2. The borings were drilled to a maximum depth of 21.5 feet betow grade using a trudc mourrted drill rig. The best piEs were excavated ta a maximum depth of 14 feet beiow grade using a n�bber�ired backhoe. The boring logs are included as Plates A2 through A5. The test pi# logs are included as Plates A6 through A8. Please refer to the exploration fogs for a detailed descripfion of the conditions encauntered at each location. A description af t�e field explora�tion methods is induded in Append�C A. The following is a generalized description of the subsurFace condi�ons encountered. At the exploration locations, approximately 2 to 3 �nches of topsoil was er�countered. The topsoil was characterized by its dark color, foose consistency, and tt�e presence of orgar�ic material. Underlying the topsoil at the location of Boring B-7Q1 and Test Pit TP-5, approximately fi to 12 inches of foose to medium dense filf were encac�nbered. The fill consisted of silty grave! with sand {Unified Soi! Classification GM) and was characterized by the presence of angular gravel. EAR77�1 COT[StA.7'LN�i QJCORI�CRAT� Page 3 GEOT�vcAL eNGIIVE�QNG 5'rLJ�Y E-9060-12 Octaber 1,2007 Underfying the topsoi( and fill at the exploration locations, silty sand with varying amounts of gravel (SM), silty gravel with sand (GM), pooriy graded sand with silt {SP-SM), and poorly graded gravel with variable amour►ts of silt and sand (GP and GP-GM) was encourrtered to the maximum exploration depth of 21.5 feet below grade. The native sand and gravel was typically medium dense wi#h localized interbeds of loose ta medium dense soil at varying depths at the e�lora#ion locations. High "N" values were recorded at localized depths in Borings B-701 and 8-702, The high blow counts were iikely elevated due to tFie presence of lange gravel a�d cobbles blocking the sampler. The depfh of the test pit excavations was IImited due to excessive caving of the gravel sa�ls. Geologic Map Review Based on review of the Geologic Map of King County, Washington compiled by Booth, Haugerud and Sacket (2Q02), the subject si#e is mapped as Alluvium (Qal}. Allu�ium is described at moderately sorted deposits of cobble gravel, pebbly sand, and sandy siit along major rivers and stream channels. The soils encountered at the exploration locafions correspond with the alluvium deposits mapped on the Geologic Map afKing Courlfy, Washirrgton. Earthwerk Observation and Testing Base� on our previous observations, the subject site was graded in June and Juiy 2003. The purpose af the grading was to prepare the site for general cammercial de�elopment by raising the grades of the site. The earthwor[c far the site was combined wi� the grading for the multi-family development to the sauth. ECI was contracted to conduct the earthwork monitoring for the site. During our monitoring program, ECI observed the following: • Stripping of vegetation and topsoil from the site � � Placing fill obtained from the mu!#i-famiEy development to the south • Air drying fill bo ob#ain suitable moisture for campac#ion • Compacting of fill in lifts using a large vibratory drum roller • Obtaining density tests on fill materia!which indicate adaquate compaction Groundwater Heavy grou�dwater seepage was encountered at 7 to 7.5 feet below grade at the boring locations. Heavy groundwater seepage was also enoourrtered at 9 to 10 feet bebw grade in Test Pits TP-5 and TP-6 in July 2000. The heavy seepage encountered at the exploratlon locations is likely indicative of the seasonat groundwater tabfe at the time of exploraiion. Groundwater seepage should be expected in excavatirms extending bo around 5 feet below grade during the wet season and to 9 feet below grade during the dry season. EJ1Rila CONSULTIM1IG 11�K:W�ORAT9! Page 6 ; GEdTE�11ntG4<El�fiWE6�N6 SluDY E-9060-12 - October 1,2007 .The contractor shoufd be aware that gmundwa�er levels should not � considered static. Groundwater levels fluctuate depending on the season, amount of rainfall, surFac� water runoff, and other tactors. Generally, the graundwater level is higher in the wetter winter months (typically October through May). E.aboratory Testing Laboratory tests were conducted an representative soil samples to verify or modify the fiefd soil classificafion and ta evaluate the general physical properties and engineering characteristics o# the soil encounter+ed. Visual classifications were supplemented by grain- size analyses on representa#ive sampfes. Moisture content tests were pe�formed on all sarnples. The results of laboratory tests pertormed on specific samples are provided af #he appropriate sampte depth on the individual test pit logs o� on a separate data sheet contained in Appendix B. It is important to note that these test results may not accxrrately represent the overa[I in-situ soil conditions. Our geotechn'tcal engineering recommendations are based on our interpretation of these test results. ECI canno# 6e responsible for the interpretation of these data by others. DISCUSSlON AND RECOMMENDATI�NS General Based on the results of aur study, in our opmion, construc�ion of the proposed building is feasible from a geotechnical enginee�ing standpoint. The proposed buitding may be supported on a conventiona! spread and confinuous footing foundation system bearing on competerrt native soil or structural fill. Concrete slab-on-grade floars should be similariy supported. , This report has been prepared for specific applicat�on to this project only and in a manner oonsisterrt with that level af care arxi skill ardinarily exercised by other members of our profession curreMiy practicing under simitar conditions in this area. This report is for the exdusive use of Eagle Creek Land and Development, LLC and their representatives. No warranty, e�ressed or implied, is made. This report, m its entire#y, should be included in the proJect contract documents fo�fhe inforrnation of tt�e contractor. Site Preparation and Generat Earthwork Rev[ew of the preliminary site plan indicates site earthwork will �onsist fl� installing erosion control measures, stripping the s'rte, grading the si�e to provide building and parking lot grades, installing underground uti[i�es and drainage, and compteting footing excavations for the proposed buildings. StripP��9 Prior to stripping, on-site erosion contro! measures consisting o# silt fencing and surface ; water controls should be installed around the perimeter of the site. GART�I[ONSUlT1N6 WCORPORAT� Page 5 G�TE�lW[AL EPjGINEERING S'111DY E-906Q-12 October 1,2007 The building and pa�ement areas and areas to receive structural fill should be stripped and cleared of surfaoe vegeta�on, organic matter, exisfing faundations or pavements, and other deleterioels material. Based or� our previous work at the site, we understand the site was hydroseeiled after fill placement. The site is currenEly vegetated with tall grass. Stripping should indude removing the grass and roots. The actual stripping depth should be based on field observation a#the time of construction. In no case shou[d the stripped or grubbed matenals be used as structural fi[I or mixetl with material to be used as s�ructural flll. The stripped ma#erials may be `�vasted" on site in non- structural landscaping areas, or they shoufd be exported. Ex+sting utility pipes to be abandoned shou(d be plugged or removed so that they do not provide a conduit for water and cause soil saturadon and ins#ability problems. Following the stripping oper�afion, the ground surface where structural fill, fotmdatians, siabs, or pavernents are to be placed should be observed by a representative of ECI. Proofro111ng may be necessary to identify soft or unstable areas. ProofroElir�g should be perFormed under the observation of a representative of ECI. Soi! in loase or soft areas, if reoompacted and stil! yielding, should be overexcavated and replaced with a granular struct�ral fll. The optional use of a geotextile fabr�c p�aced directly on the overexcavated surface may also help fi� bridge unstable areas. EC! can �rovide recommendations for geotextiles, if necessary. Stnactural Fill Strvctural fill is def�ned as compacted fi[I placed under buildings, roadways, floor slabs, pa�ements, or other bad-bearing areas. Structura[ fifl shoufd be placed in horizonta! lifts not exceeding 12 inches in loose thicicness and campacted to a minimum of 95 percent of its laboratory rnaximum dry density determined in accordance with ASTM Test DesigRation D1557 {Modified Proctor). The fili mataria�s should be pla�ed at or near their op�lmurn moisture content � In our opinion, the nafive soils tfiat will be encauntered on site can be consideted for use as structurat fil[ provided the soil is near its optimum moisture conterit at the time of placement. Imported soil intended for use as structural fill should consist of a fairly we�l-graded granular sail with a maisture content that is at or near i�s optimum moisture content and has a maximum aggregate size of 4 inches. During wet weather conditions or where groundwater seepage is encountered, structuraf fill should consist of a fairiy well-graded granu(ar material having a ma�dmum aggrBgate size of 4 inches and no more than v peroent fines passing the U.S. No. 200 sieve. Foundations Based on the resufts of our study, in our opinian, the proposed building may be supported on a canventional spread and continuous footing foundation system bearirtg on oompetent native soil or structura{fill used ta modify site grades. EARTH CONSUII'INC�@1FCORPQRAT� Page 6 �\ c6pTBOiiNCAL H�QNEER(NG STu�Y E-9060-12 _ October 1,2007 � Exterior foundation elements should be placed at a minimum depth of 18 inches below final �_ exterior grade for frost protection. Interior spread foundaiio�s can be placed at a minimum depth of 12 inches below the top of slab, except in unheated arc�as where interior foundation elements should be four�ded at a minimum depth af 18 inches. Continuous and individual spread footings should have minimum wldths of 16 and 18 inches, respectively. With foundation support obtained as described, for design, an allowable soil bearing capacity of 2500 psf may be used for medium dense to dense native soils or structural fill. Loading of this magnitude wauld be provided with a thearetical factor-of-safety in excess of 3.0 agains# shear failure. �or short-term dynamic loading condifions, a 1!3 increase in the above allowabte bearing capacity can be used. With structuraE loading as expected and provlded the above design criteria are followed, total settlement of less than approximately 1 inch is anticipated, with difFerentia{ settiement of approximately 0.5 inch. Most of the antiapated settlement should occur during construction as dead toads are applied. Horizontal loads can be resisted by fr3ction between the base of the foundation and ths supporting sQil and by passive sait pressure acting on the face of the buried portion of the foundation. For frictfonal capacity, a coe�cient af 0.35 should be used. Resistance due to passive eartfi pressure may be computed using an equivalent fluid pressure af 304 pounds per cubic foot (pcF} for footings bacl�illed with structural fill. These values are allowable values; a factor-of-safety of 1.5 has been induded. As movement of the foundation elemer� �; is required to mobi('ize full passive resistance, the passive resistance should be neglected if '' such movement is not acceptable. Unless co�ered by pavements or slabs, the passive � resistanoe in the upper 1 foot of sail should be neglected. ECI should be retained to observe the foundation subgrade prior to piacement of structurai fill,forms, ar rebar. � Retaining Wa[[s Retaining walls should be designed to resist the lateral loads imposed by ifie retained sals and applicable surcharge foads. Walls that are designed to yleld can be designed to resist the lateral earth pressures imposed by an equivalent fluid with a unit weight of 35 pcf. If walls are to be restrained at the top from free movement, the equi�alent fluid weight should be increased to �0 pcf. These values are based on horizontal backfill conditions. Surcharges due to backfill sbpes, hydrosta�c pressures, traffic, structural loads, ar other surcharge loads are assumed to not act on the wall. If such surcharc,�es are to appiy, they should be added to the above design lateral pressure. The passlve pressure, albwable bearing capacity, and fridion coefficient previo�sfy provided in the "FoundationsU section are applicable to the retaining wal!design. EM�Ii[ONSUl.T1NG IM�O�tAORAT� Page 7 � GEdT�11NCJU.A�f�Ki 5T1JDY E-9060-12 October 1,2007 To reduce the potential for hydrostatic pressures to build up behind the wa�ls, retaining waEls should be backfiNed with a free-draining material extending at feast 'I8 inches behind the wall. The free-draining baci�ill shoutd consist of either pea gravel or washed rock. A rigid, 4- inch-diameter, sc�edute 40, perFora#ed PVC drain pipe should be placed at the base vf the footing and shoukl be surrounded by a minimum of 1 cubic foot per lineal foat with pea gravel or washed rock. The pipe should be placed witfi the perfora�ions down. The remainder of the back#ill shoukl oonsist of structural fill. Slab-on-Grade Floors Slab-on-grade floors may be supported on competent native soil or structural �ill. Loose or disturbed subgrade soil must either be compacted t�o the reqviremenfs of structural fcll or replaced with structural fif!_ Slabs should be provided with a capitlary break comprised of a minimum of 4 inches of free- draining sand or gravel. In areas where slab moisture is undesirable, a vapor barrier, such as a 6-mil plastic membrane, shouEd be placed beneath the sfab. Selsm�c Design Conslder�ations Earthquakes occur in the Puget Lowland with regularity; however, the majority of these ' events are af such low magnitude they are not detected without ins�ruments. Large earthquakes do occur, as indicated by fhe 1949, 7.2 magnitude earthquake in t!-ce Olympfa area and the 1965, 6.5 magnitude earthquake in the Midway area and the 200i, 6.8 magnitude earthquake in the NisquaUy area. There are three poterrtial geologic hazards associated with a strong mation seismic event af this site: ground rupture, liquefaction, and ground motion response. Ground Rupture � The strongest earthquakes in the Puget Lowland are widespread, subcrustal ever�ts, ranging in depth from 30 to 55 miles. Surtace faulting from these deep events has not been documented to data. Therefore, it Ps our opinior�, #hat the risk of ground rupture at this site during a strong mo#�on seismic event is negligible. Liquefacbon Liquefaction is a phenomenon in which soils lase all shear strength for short periads of time during an ea�thquake. Groundshalcing of suffictent duration results in the loss af grain to- grain cantact and rapid increase ln pore water pressure, causing the soi!to behave as a fluid. To �ave a potent�al for liquefaction, a soil must be oohesionless with a grain-size distribution of a specfied range (generafly sand and silt), it must be loase, it must be below the groundwater table, and it must be subject to sufficierit magnitude and duration of groundshaking. The efFects of liquefaction may be large total and/or differen�ial settlement for s#nactures foundecf in the liquefying soils. FIUiTH C01115U1TNC WCOIiPORATH) Page 8 i � GEOTE�]�INc/uL�S�UOY E-9060-12 October 1,2007 in aur opinion, the liquefaction potential at this site is low. This conclusion is based on the gradation of the medium dense soils encountered at the exploration locations. Ground Mofion Response The 20031ntemafional Building Code(IBC) regulations contain a static force procedure and a dynamic force procedure for design-base shear calculations. Based on the encounte�ed soil conditions, it is our opinion Site Class D, `Sfiff soil profile,N as defined in Table 1615.1.1 of the lBC, should be used to characterize the site soi[s. !n acoor+dance with Sectian 169 5.1.2 of the IBC, Seismic Values, S�= 1.205 and Sm, = 0.632 should be used for design. Excavations and Slopes The foAowing infomna�on is provided solely as a service to our dient Under no circumstances should this information be interpreted to meart that ECI is assuming responsibility for construction site safety or the contracto�'s activities; such responsibi�ity is not being impli�d and should nQt be inferred. ln no case should excavatian siopes be greater than the limits specified in local, state (WISHA), and f�ederal (OSHA) safety regulations. Based on the Information obtafned from our subsurface exploration, the site soils encountered in the exploration locations would be dassi�ied as Type C by WISHAIOSHA. Temporary cuts greater#han 4 feet� height in Type C sol[s should be sloped at an inclination of 1.5H:1V{Horizontal:Vertical). An EC{ representa#ive should observe temporary excavations to verify soil and groundwater conditions and the soil type. (f slopes of the above inclinations or flatter cannot be oonstructed, temporary shoring may be necessary. Shoring will help protect against slope or excavation collapse arxl will provide protection to workers in the excavation. if additional temporary shoring is required, we will be available tio provide shoring design cxiteria. Permanerrtly exposed slapes should be saeded with an appropriate species of vegetafion to reduce eros�on and improve stability of the surficial layer of soil. Site Drainage During oonstruction, the site mus# be graded such that sucface water is collected and tightlined to an appropriate drainage faci(ity. Water must not be a(Iowed to stand in ac•eas where buildings� slabs, or pavements are to be constructed. Loose soil surfaces should be sealed by compac�ting tF�e surfaoe to reduce the poter�tial for moisture infiltration. Final site grades must allow fo� drainage away from the building faundation. The ground should be skoped at a gradient of 2 percent in paved areas and 3 percent in landscaped areas for a distance af at[eas# 10 feet from the building. EJIft7H CON3l1tT1NG RNCORPORATED Page 9 EN6NE6i1NG 57'UpY E-9060-12 Qctober 1,2007 Footing drains may be installed around the perimeter of the building at or just below the invert of the footing, as sF�own on the 'Typical Foo�ng Subdrain Detail," Pfate 3. Under no circumstances should roof downspout drain lines be cflnnected to the foofing drain system. Roaf downspouts must be separately tigh�ined to discharcJe. Cleanouts should be installed at strategic locations to allaw for periodic maintenance of the foofir►g drain and downspou# tightline systems. Utiltty Support and Backflli The site soils should generally provide adequate support for �tilities. Where foose soils or unstable condi�ons are encountered, remedial measures, such as compac#Png subgrade soils exposed in ths trench botbom, may be required. Utility trench backfill is a primary ooncem in reducing the potential for settlement along utility alignments, particularly in pavement areas. It is important that each section of ufility line be � adequately s�pported in the bedding material. The material should be hand tamped to , provide support around the pipe haunches. Fill should be carefully plaoed and hand tamped to approximately 12 inches above the crown of fhe pipe before heavy compaction equipment is brought into use. The remainder of the trench backfill should be placed in lifts having a loose thickness of less than 12 inches and oompacted bo the requiremerits of struc�ural fill. Suggesfed Pavement Sections The adequacy of site pavements is related in part to the conditian of the underlying subgrade. To provide a proper subgrade for pavements, the subgrade should be treated and prepared as described in the"Site Preparation and Generai Earthwor-k° section of this report. The pavement subgrade should be compacted to 95 percent of fhe ma7dmum dry density per ASTM D1557 {Modified Procbor). It is possible that some loca['¢ed areas of sofl, wet, or unstable subgrade may st�l exist after this process. Additional subgrade preparation, such as overexcavafion of the soft soil and replacement with crushed rock, may be needed. The �eoommended pavement sections assume the pavement subgrade soils will be compacted and in a firm and unyielding condition. Proofrolling should be performed to identify soft, unstable areas. Proofrolling should be performed using a fully loaded dump truck and shot�ld be observed by a represerrtative from ECI, Assuming a properiy prepared subgrade, either of the following pavemerrt sectfons for lightly Ioaded areas is suggested: • 2 inches of asphalt concrete (AC)over 4 inches of crushed rocic base (CRB) materiai • 2 inches of AC over 3 inches of asphatt treated base (ATB)material These pavement sections may need to be modifled based on anticipated traffic loads and frequency. We can provide altemative placemenf for heavily trafficked areas, if needed. Pavement materials should conform to WSDOT specifications. A Class B asphalt mix should - be used. � t EL�TH COM15l71..T1N6 11VCO�iPOQA7'+� Page 1U � i 6C�o7'6o�ID�tuu.erec�NEE�uG S�unv E-9060-12 October 1,2007 LIMITATIONS Our recommenda�ons and conclusions are based on the observed site conditions, selective laboratory testing and engineering analyses, the design information provided for us, and our experience and engineering judgment. The conclusions and recommendations are professional opinians derived ln a manner consistent with t�at level of care and skill ordinarily exercised by other members of the profession curren�y practicing under similar conditions in this area. No warranty is expressed or implied. The recomme�dations submitted in this report are based on the data obtained from the boring and test pits. Soil and groundwater conditions beiween explorations may vary from those encountered. The nature and extent of variations befinreen the e�loratory loca4ons may not became evident until constn�ction. If variations do appear, ECI should be requested to reevaluate the recammendations af this report and ta modify or�erify them In writing prior fio proceeding with the grading. Additlonal Servlces As the geotechnical engineer of record, ECl shouk! be retained fo perform a general review of the fnal deslgn and specifications to verifjr that the earthwork and foundation recommendations have been properly interpreted and implemented in the design and in the cons#ruc�Ion specificafions. ECl shou(d also be retained to provide geotechnical engineering services during construction. This is to observe oompliance with the design concepts, specifications, or recommendations and to allow design changes in the svent subsurface oanditions differ from those anticipated prlar to the start of construc�tion. EAR17i CONSULT1fNG 1NCORPORAT� Page 11 i �•n� �; _ :r.�� a: �; ,y:: w -— ;ienao :, .u,4.. ... . .. �,er-. g .. .PARK';.'.'- Siy' .�. a' ,�': 1� ' Y y:,� .,. ,.. iE� ]31ST; ,ST4 a; ,� �f�, I; .r`� �... ._ ' �-:��i; � ';`'_ :.'�9C�� ' ��. 7z Lt,s��'\ � '�in�� ;st iat�i s¢ f�c-z'r: ._ '132No ;,� f at.0 � SE �� ,�.;:. . ,t:u� _.. V< < ..� y � a nim� �:9':a 133.4D.��.O 5T . .� ,� ! :_.: - �_ . . .132� � :� W t � '�,. : :-. s ,4 �p��y�,'�'�h_t � � ......... �� :�,�6�'.9: .�, 1 �4' � �� SE 13�TH^f T� � -- s'f,:''ii�,:_:x J d ,°$` `^" , • .:�. ....a:�,. ��139?H.. _.... �= ST��`'x a. � ";� . -`�� "r'' 14 �: : p . - . 5[ � � .� 'Q:.."_� '✓' ' '�53��11 i"_''�• '� L,� z'��SE I3SYH t_ _ST, ..4; .. ...F.y ..,....' ' . � f no a..�; as'�r ,-- �. n: sr �; �, SE�..f33eA ri ;� `:_-�:.. SE 3bTk : ; 57 i . �: �, ^5.... ._._.._. M. !SE 1351H 5T__ ,'�, �: : •. . : .. '�15100� --. ;...._. ., io'u' .. _..... 7 .. . _.... ... �$E' `i � {.. .. :SF 136TH ; ;� ;i S L�.,.. ,. ST ..�:.. _.1 � •S7;' . �: :� g� �3 �� , �� - �� - ::•. � ; .... : . .. ... _ .. _._ --- - � � m �.. ...r�_` 1� : : .v"'i : ; � ' a � ,� : s; . 'Rl.SE ]3BTIt .:s >' Sf 38TN PL . : '. � � .."�[__.. ;c <: : �� . N:, � '�� `. �; r� � - , SE 1397k ;� i �_. �' , �.,s' h r • 6 �t __...... .� � ...__.. $.,g . ' ; PL .n ,,., 5 I3,91H Pl .�:� i 4,; a' ii h' ��e : ;..r . . . . Sr u �s . � <. W �;R .�ISR.. �: � 5 ; _�- .'. . .-'..-._..._,,. �;`�' . oe 7�', �!?': I�Oii{ � H: . � ' • .'�-. . ��p/� f 1�� i� � YtHSI' : . ..�� I� � Xayr ��< .ST r, �'.: ' � < . ! i"' � 1 � SE ib2HU w e�� Y _a� .�� 14 _.. ._.,. , :o � ....,..,- �., .. ,?; ,,;.: �.� � � � �Eid''. ..... A �..,,�';=.? _._i_.._ 2ND ` �: <f�� :l � 2n0 St; �, , Y'_...�:".;� _...SF �t �� t .I+JAR �� ,�'p <1 �� y �� 's �� ,� Air e'•I w P..., ac Q SE;'1 _ 57 f . :,tL� _� l:t� �E 243RD �` 5� � y; �'s --- '- . : . }�. + =L� ' ,tc" �: SE �_...144TM � �ij: �t'+� �e �� i .yi t1 �� g' ;SE � ^`� I f � �,"�' ; SE1 i.�r..'.. . _ __ `..'�,.."'_...._ .. .. .. ! ST �� . ,. '`./. 1` . - • 9l. , , 15400a» , . ' : :_,:..�-.c-.<,.�.,. 7.� �' �. ' ' :y� - �a:�.�i st � ,� .. ,`... . ,.. ,— � � . H ��N'k':� �' �� 7�� <�'�� , r; �f��^�'•.-� �ia�rn s+ ' � ��a r �-. ie<do.. . __._ �i�+� „ � >i#�g� ' ry�'' � ��''? �' ,y ..�.q4 �; , i ;� k,�,,:,1'vVa��.�C�C�CBp;` �s: � '� �`•�t; ,. ,y .rt� PX µ NI fQ uPii"'ni : 1 ry .;�^i') `.�'?'•• ` � � '� 9 �, �p'.. .�m�� i f�nl R �, '�`.�� . :A:. ti� � : :.� u� ^�°� �3 f•..�� Q ��:.. . i"�jj� .. . 1. .. 3F I�Y(1(_�... `' :'a^ . S► c��1 SE � � $Y �...�.. p,..� ;� g a 1N,� 5i P( . ,� h� ' . ....E.^ 'Y. �% ��e �5'�,��% +a� �y�..-� � . . .., < .. �„ � . �_ -- �. �b s : '" '� •i�iiA . � . � "� o: ...� �c�� a . „ .. , .-" �:, iW �� . .y � .: . ..,:�....: :.=4� . �� _..: . .....�._. .:S. .........:....... .�.. � s �s2�; � , . . � 2� � � ^;s� � o � T .i - i�.' w � l �'�-....r _ - r� �}�~ ! 4!.tuiC!`` ' L f � �:�.i::i ...� -�::�_�'''. �\�� _�' �v�:i.`��=� '• .' : .., �. . � ,' •_.�. :'Nl. : \� � .., •... � p ....__. : ... ..g�. .,, , �"p,�RCL, _•'I - ' �.:: i7 SE 15 —; . �� .- _ --� - ST:-^- �; @�'�,:d 1� �pfyfR Rl� .•:.;. .5::..�:...... . ..... ..,� . ..„, :......... „ , � � _ W , �r _ �� .� � . .._......_ ...... _ �� ..... ..................._..._......:....... °E,i�i'�•1�;} K' ��0� I 7R \ _ `..E `'\ � ' 4 k� . �"ffi��J� ::�'' -:�-�-- � t - _ SITE - �i� �ALLE� � �� : _ -�- �� . _. , ._. ..,y �� SEE�A7 � ��T ' �� t �� t R�mn sr '.� �! t15lMh5E . � s H]riusr 9E � nl N,: ax �, •. 1 Y;� 15�.,.�621p 5�,-•i • /L5B1N/N g )R$:R �'r s�� 1 � Qai I s-'�.�. ,� 4. �'Gl�°�,.? i�r�`$.� l65TH � 2f. �.; ,'.r6+� �� f p� - �y.,..•+�, . .Y✓„r�c,,�..w. M..pl..�:bw„5 ;i�uyN�.'-'_' .�� ' ��... ;.164TH_�i hlap�Rand McNa11y 8 Company,R,L07-S-23,rsproduced wllh permiseion. It fs unFawlui bo further copy or reproduoe witF�oi�t aeperete EARTH CONSULTIIVG INCORPORATED VICINITY MAP CEDAR RNER STATION KING COUNTY,WASHINGTON DRVYN. DNM PROJ.NQ. 9060-12 NORTH NOT TO 5G1LE CHKD. SJS DATE 9/28J67 PLATE '{ � � -�,_ .�� ..-��.. ,� _ �� r!�'� �.��._.. �pC�V'�cYH1�,W 1 "��—_ ! "� 4��'I.,�•';T��-_ `�';____�. Ay - --__, �; i.�-- '�!i:��F� �-•--. ;� L, '��B�Z'-- ' ��.'�/�1;��,.�-'�--.., �.,��.__ ) `' �� —�� -'`T��" ' ��'--` � � � �� //;�`"",� `� _ �-� �i' i� � —; BUILDING y?2 ; 1 f; .�� , ��f. �I�!"�'��i I/i`�"' �s ��!J�`'��— � —�� ,� � � � f T r l� , '1..� �. �� `"`" IOJ ( � �"��%�%I J w'^a'�,� '? _-i Q , :� —.g-7a�%G;1 I ° �..� ,-� � i �� '�- --� 1 � su�awo � � �=1• �``__J.�.I' ��'�.. 8 � � .� - BUILDWG � _;�. �.. � AM., :-� � `��`- ��.,_L-' ,,j, r= -�--i I �., � ' =� � "�:'�-, ,f �.:,: � i _ , _`----__�� _..._�,�� i � _` J � 'y`��.�� 'v:��1 __� �j� f �A—'�=L`f�i l•l' TP-4 1 1'-='' � LEGEND �RTM CONSUL'1'ING B"��1 �_ Approxfmate bcation of ECf boring, INCORPORATED � Proj. No. E-9060-7, December 2002 TP'4 � Approximate locatbn of ECI test pit, BORING AND TEST PIT LOCATION PLAN —�� Pro No. E-9060-2,July 20�0 CEDAR RIVER S'CATI�N � j' KING COUNTY,WA5HINGTON NORTH 0 120 DRWN. DNM PROJ.NO. 906Q-12 APPROXIMA'f� REFERENCE:FREIHEIT&HO,8/29I07 SCALE IN FEET CHKD. 3JS DATE 9!'l8107 PLATE 2 SLOPE TO DRAIN y: :.:. . i..<;:': .•:::.�;��:�•�::-�, -,.f.p�•;a'S. .�r�4��e'ss`i�::'�': d. . . ''Y�.�r:� '„y,y�t��r1x'�F y.�y7'r: ��1.` _. •v�:`tjr��.'�":��tE�.��:n A�,.Rc�:?+.'i� ::�.....: K;»�:;�y.�lT . . WrtR'ti:1eJ"��Y'•�•�.j,.`,+ .Xi��Try�i�'r%`��t7.4�F`5.w��y�''.� •Y''��L�a+�ivL.�iit�n ��.C>.:.R� 1,�;:n�V�yMir�vi. i .�Y'�'�1'+�� :rH 4,'�' f) ..�.�..:0 5'�t;r^�� . �•r:i��y�.;�::,�ti��."�.':��r `':'�:v'�;:�e=`.',,:.w=�r _:� •r - Z � � Z m � 4 INCH MEN.DIAMETER QERFORATED PIPE ,,; ` , 2 INCH MIN. 2 INCfi MIN. 4 INCH MAX. 12 INCH M1N. � LEGEND ��-a_Y=''-'�: SurFace seal;nafnre so8 or other SCHEMATIC ONLY-NOT TO SCALE :"}"-'�;�'"�' low peimeability mate�al NOT A CONSTRUCTION DRAWIfdG �,..,..,,.a,.;•;: •�y"r.• Waghed rock or pea grsvei ��h O orain piPe; per�orated vr slotted C 5ufdng rigid Scheduls 40 PVc or 8DR 35 Incorporat[-d pipe laid with pe�farations or slois facing dawn;tight)oirited;with a Np�CAL FOOTING SUBDRAfN QETAIL p�sitn►e gradient Do not use CEDAR RlVER STATION flexibie carrugated plastic pipe. KING COUNTY,WASHIIYGTON Do not tie huilding downspout arains mto foot�ng�h,es. DRWN. DNM PROJ.NO. 9060-12 CHKD. SJS OATE �1281Q7 PLATE 3 APPENDIX A FiELD EXPLORATION E-9060-12 Subsurfiace conditions at the site were evaluated by reviewtng the lags from three borings and three test pits completed as part of two previous geotechnical engineering reports prepared by ECI. The barings were drilled to a maximurn e�loration depth of 21.5 feet below grade by Gregory Drilling using a truck-mounted drill rig. The test pi�s were exca�ated to a maximum exploration depth of 19 feet below grade by Northwest Exca�ating usir�g a rubber- tired bacKhoe. Appro�imate e�loration locations were estimated by paang from site features depicted an a site plan. The exploration elevations were estimated based on topographic data avaitable at the time of the e�lorations. The locations and elevafions of the explorations shoutd be considered accurate only to the degree implieci by the methai used. These approximate locations are shovm on Plate 2. The field e�foration was continuousiy monitored by an engineering geologist from our ficm who classified the soils encountered, mair�#ained a log of each exploration, obtained represe�ntative samples, and obsenred pertinent site feat�res. The samples were visually classified in acoorcJanoe with the Unified Soil Classificafion System {USCS), which is �resented an the `Legend," Plate A1. Representative soll samples were c�llected and returned to our iaboratory for further e�camination and testing. Logs of the explorations are presented on F'lates A2 through A8. The final logs represent our interpretatians of the fieki logs and the resutts of the laboratory examination ar�d tests of field samples. The stratfficatlon lines on the logs represent the approximate boundanes between soil types. In ac�uality,the transifions may be mare gradual. The borings were driiled using a hollow-stem auger. In the borings, Standard Penetration Tests (SPTs) were pertormed at selected intervals in general accordance with ASTM Test Designation D't586. The spfit spoon samples were driven with a 140-pound �ammerfree�y falling 30 inches. The number of btows required ta drive the last 12 inches af p�netra#ion is called the "N-value." This value helps ta characterize the site soils and is used in our engineering analyses. These results are recorded on the boring log at the appropriate sample depths. MAJOR D1VIS10NS ��PH LETTER Typ1CAL DESCRIP710N SYMSOL SYMBOL p• ° ` ° `,yy Well-greded gravels,9ravei-sand mixtures, Clean gravels •p o o Q gw Iittle or no fines Gravel and (little or no fines) gravefty soils !�!�!�� C� Poorty-graded gavels,9ravel-san[i w w .► 9P mbdures,iittle or no fines More tt�en 50% � coerse fraction Gravels with fines � . C'M � SBiy gravels,gravei-sand-sift mixtures Coarse-gained soils ��°�NO'4 {appreciable amount Sieve of flnes) � Clayey gravels,gravel-sand-clay mixtures gc �'° :'�""' gyY Wel�graded sands,gravelly sands,littte or no ,.oe More than 50% Sarxi and sandy Cleen ssnd ,_� � fines material larger than soils (Ittqe or no fi�s} ��v'a'Y:'�:o�'�: No.200 sieve size d : �,�o�.�,, SP Poorly-graded sands,gra+reliy sands,little or no 'l^- y a�b=s��:.9.e sp fines IYMB�W A 3��."3<1.1- .. s:0:4 coarse haction � : S� Si1ry sands,Sand-silt mixtur�es pessing No.4 Sands with fines sro Sieve (apprec'rable amount of flnesj _ ' sC � Clayey sands,sand-clay mixtures _ NEt Inorganic sits and very fine sands.roc:k flour. mf silty-clayey fine sands,clayey silb with s�gM plasticiry Silts Liquid Gmit Ci„ lnorgar�c days of bw to medium plasticily,gravelly �'in�gained soils and days less than 50 c1 clays,sandy clays,s�'tly clays,lean days i i i i i i i OL o' Org�ic sdts artd otganic silty clays of low � � � � � � � pla3tlCfty Niore than 5096 � Inorganic s�Es,micaceous or dtatomac�,eous fine ' matedal smaller than mh sand ar silly soils �'�O•��S� Silts Llqufd limit CH Inorgenic clays of Mgh plastldty,fat c�ays artd clays greater thaR 50 � � � �',� pf{ Organicclays of inedEum to high p)asticiEy, �� oh organic sitts Highly orgarre soils s��i Lr u pT Peat,hirnus,sardmp soils with Ngh organic Lr Lr pt COf11BIlls To�sall +� w � Humus and duff layer � � Fill Highly variable consGtuents • The dFaatsslon In the f�xt of this report is�ssary for a proper underst�ding of the r►ature of the ma6erial presented in U�8 aHac�ed logs. Dual symbals are used to indiaate bade�3ne�oil dassfflcaflon. C TORVANE READING,tsf I 2"O.D.SPLtT SPOON SAMPLER qu PENETROMETER READING,tsf W MOISTURE,%dry weight � 2.4"I.D.R1NG OR SHELBY TUBE SAMPLER P SAMPl.ER PUSHED ' SAMPLE NOT REC01/ERED y WATER 08SERVA710N WELL pcf DRY DENSITY,Ib.per wk�c ft. LL LIQUID LIMIT,96 � DEPTH OF ENCOUNTERED GROUNDWATER DURING PI PLA3TIC INDEX EXCAVATION Z SUBSEQUENT GROUNDWATER LEVEL WiTH DATE Earth Consufttng LEGEND - A1 Incorporat�d Boring Log Project fVame: Sheet of Cedar River Station 1 2 Job No. Logged by: Start Date: Compledon Date: Borir�g No.: 9060-7 MGM 12/13102 12113/02 B-701 an'�ing Con7adcr: Dr�ling Method: Sampfing Method: Gr o Drillin HSA SPT Approxima6e Ground SurFace Elevation: Hole CompleUon: 105' ❑Monitori Weil ❑ Pfemmater � Abandoned,sealed witt�bentonite c3eneral w No. o � m y o Surface cond�t;ons: Depth of Topsoil 8�Sad 1"-2" Notes �y�� Blows � � o�, W j T Ft � as v� v� GM 8rown sitty GRAVEL, medium dense, moist(Fil!),comprised of angular gravel � GM &own s'Ity GRAVEL, medium dense,mofst 2 4•e -contains cobbles 2� 3 -contains pockets of poorly graded sand 8.1 4 -cdlected c�ttfngs at approximately 4' 5 -19.3%flnes at 4' 2.5 27 B 7 � -becomes water bearing at T �$ -becomes reddish brovm 27 8 9 11-9 . 1 , �� GP Grades to brown poorty graded GRAVEL with sarxl, medium s� �.� 11 dense,water bear►ng •f• -1.996 fines w �2 �•• -contains cobbles �� 13 -blow counE at 10'hlgh due ta cobble blocking sampler,so�is � likely medium dense i'i • � • 14 w �� 12.7 . F . 15 2T :� 16 . 1 . �: 17 � . 1 . • Ta � �.� �, �» 19 'a �'� O w � Baring Log g Earth �onsufting IncorporatEd Cedar River Station Z King County,Washirx�ton � Proj.No. 9060-7 Dwn. GLS Date Dec.2002 Chedced iNGM Date 12/27/02 P�te A2 � Subsurface canditlons depicted represent ar observatlons at the tkna and locatlon d this e�iorato�y hole,mocified by englneering tests,snalysfs and jud�n ent They are noE n �rresentaWe of other times artd bceflons.We cannot accept rasponsfbiGty forlhe use or Interpretation by others of informaUon presen�ed on�ls Boring Lag Praject Name: Sheet of Cedar River Station 2 2 Jub No. Logged by: Start l7ate: Campletion Date: eoring No.: 906a7 MGM 12/13/02 . 12/13/02 B-707 Driling Contrac�or. Driliing Method: Samplfng Method: Gr Drillfn HSA SPT Appro�dmate Ground SurFace Elevatlon: Hole Completion: 105' ❑Monito WeY ❑ Pfeaometer � Abandonad,sealed with bent�nite General yy �o. � s � a N � Blows a E $'u"'. ai � Notes (96) Ft. � rn � � � o'i 5.� . I . GP Brov►m poorly graded GRAVEL with sand, mediurn dense,water 27 w bearing :.: 21 Boring terminated at z1.5 feet below existing grade.Groundwater table encour�tered at 7A feet during drilling.Boring backfilled with bentonite and cutdngs. NOTES: - Borings drilledby Gre�ory Drilling, Inc.using a CME 85 Trudc-Mounted brill Rig. Borfng elevatiorts estfmated based on Preliminary Topograpiiic Site Plan. � . ' � s � � a � � � Boring Log o Earth tonsuiting IncorporatEd ceda�wve�s�non � Kir�g County, Washington � Pr�.No. 906a7 Dwn. GLS Date Dec. 2002 Checked MGNA oate 12l27/02 Plate A3 Subsixface conditlons depic�ed repraseM our observstlons at the Bme and bcadon of this e�lorebory hole,modifled by engineerin�tests,anatysis and judgmant. Thay are not necessarily reprasentslfve of other ames and bcations.We cennot accept resporrsibUlly for�e use or interpretation by others of Ir�farmation presented on this log- Boring Log Project Name: Sheet of Ceciar River StaGon 1 1 Job No. Logged by: Start Date: CompJetion Date: Boring No.: 9060-7 MGM 12/13/02 12/93/02 ; 8-702 Oriling Corttracbor. Drllling Method: SampBng Met�od: Gr Drilli � HSA SPT Approxknate Gro�d Surface Elavation: Hole Cornpletion: 105' �Monibwing WeA ❑ Plezometer � Abandoned,sealed with beniornte G�t w No. " � � v, a �"��0"�ons: Depth of Topsoif&sod 2"-3" Notes B� 1O � m °' m `n �. �°�� Ft. c� v> � u� � u� SM Brown silry SAND, medfum dense,moist, trace gravel �,6;t' ` '' � SM Brown silty SAND with gravel, mecfium dense, moist � �� # ! 2 �_8 �� 41 >" s..,: 3 I 4 GM Grades to brown slty GiZAVEL, medium dense, mast 4.7 5 � 34 g 7 � -becomes water bearin �2•� . 1 . GP &own poorly.graded GRAVEL with sand, medium dense,water 1e w g bearfng �. . •�� • S.Q �� o �_1%fines w 55 !,: 1� I . � . � 12 •'• � 13 •�• 14 w •.• 112 •}• 15 � 27 •�� 16 Boring terminated at 18.5 feet below existing�grade.Graundwater ,� table encoun#ered at 7.0 feet during dn1lirtg.Boring bacf¢illed with � bentonite and cuftfngs. a 8 U W � a 0 � � Bortng Log � Earth Consultirtg Incorporai�d Cedar River Statlan � King Counry,Washington a 0 � Prnj.No. 9060-7 own. GLS �ate Dec.2002 cnedced MGM �ace 12/27/02 Plate A4 Subsurface candltions depicted represerrt our observatlons at the time and locadon of fhfs explaetory hole,modifled by englneerin�tests,analysis and�udgment They are not r�ri representative of other tlmes and loca6ons.We carmot accept responsth�fity for tha use or interpretabon by othas of]nformation presented on this og. Baring Log Project Name: Sheet of Cedar River Statlan 1 1 Job No. l.ogged by: Stut Date: Compleibn Date: Borirg Alo.: 9064-7 MGM 12/93/02 12l13/02 8-703 Drilling Contrac6or. Drfll(ng MeUtod: Samping Method: ory Drillin HSA SPT Appropmete Ground Surface Elevation: Hole Completlon: 105' ❑Monitoring Well ❑ Piezometer � Abandoned,sealed with bentonite � � o m � $ surtace ca�dinons: Depth of Topsoil &Sod 2" Generdl W r � � a Bbws � � o LL E NOCes t°�) Ft C� �n � � � u�i � ' SM &own silty SAND, loose to medium dense, moist �� f' 1 :�;; 'l1 :' 2 E 3., � �.-� to , 3 GP�M Brown poorly graded GRAVEL with silt and sand,loose to medtum dense, moist �' 4 �ontains abundant large cobbles ' S -becomes medium dense 3.3 �. 29 . 8 r • . 7 ��•Z . 1, 8 GP Brouvn poorly graded GRAVEL with sand, medium dense,water 24 w bearing ... •�• 9 -oontains abundartt cobblas w .. • •�� o �s :: �1 -no reoovery . 1 . � 12 •�• . 1. +� 13 • �� '� 14 •.• 14.3 �� 15 -becomes reddlsh brown loose to medlum dense,clark iron oxide �o •.• staining f,� 76 Boring terminated at 16.5 feet below existing grade.Groundwater ,� table er�countered at 7.5 fee#during drilling. 9oring badcfilled with g bentonite and cuttings. Ss � v, a w C� n � Baring !og o Earth Consulting incorporatEd Cedar River Station � King County,Washir►gton a � Pro�.r�o. 9060-7 DwrL GLS Date Dec.2002 Chectced .MGM Date 12/27/02 P1ate A5 � Subsurtace condidons depicted represent otr a�bservatfons at tha Ume and bcadon of Ws eaploraffiry hole,modifled by engineering iests,ar�alysis and}'udgment They are not nec�ssarily represerMative of other Umes and locatbns.We camot acxept respons�bllity for the use or InGerpretation hy others of Inforrnation preserned on iNs log. Test Pit Log Project Name: Sheei of Cedar River Station 1 '1 Job ido. Logged by: Date: Test Plt No.: 9060-2 MGM 7/26I00 TP� Excavation Contractor: Approx.Oro�xid SurFace Ele+ratlon: NW Excavatin 110' NoEes: cenera� w � � � Q u, � surhace con�i6ons: Depth of Topsofl 2"-3":grass Notes % i' �. m � E � � ( ) p v� � cn � cn SM Brown silry fine SAND, foose,moist 1 12.0 2 3 4 -becomes medium dense _ SP-SM Brown poorly graded SAND with s11t,loose to medium dense, moist �:�<: ,...�,;. 5 I �� -iron oxide stainin above vei cor�act at 5.5' f . 1 . GP Brawn poorly graded GRAVEL with sanci,loose#o rnediurn dense, � .� 6 molst � ... •�• � � ' 3.5 �i� 8 i w ' �•� s . i . .� �o -contains cobbles i'i . � . • �� Test pit terminated at 9 9 A feet belaw existing grade due to exoessive caving. No grour�dwater encourrtered during excavatian. F � V W �4 V N d � Test Pit Log � Earth Consulting lncorporatsd Cedar River Station � King Courrty,Washington � � � Pro}.No. 9060-2 own. GLS Date Aug.2000 Ch� MGM Date 8/22100 Plate A6 SubsurFace cai�tioris deplc�ed raprasent our observatfons at the time artd locetion of this exploratory hole,modifled by engineerirsg tests,analysis and judgment. They are�ot necessarily representedva of alher tlmes and tocatior�s.We cannot acc�ept respor�sibiAty for 1he use or Interpretaiion by oihers of information preseMed on thia�og. Test Pit Log ProJect Name: Sheet of Cedar River Station 1 1 Job No. Lo9ged by, Date: T�t Pit No.: 9060-2 MGM 7126100 Tp..S ExcavaUon Contractar: Approx.Grounc!Surtace Elevation: N W Excavati 11 Q' Notes: o m surt�ace con�ibons: Depth of Topsail 1"-2":grass Generaf W � . Ti � .o Notas (a/,) � E, p" a > ;. (� � � � 1"-2"of Topsoil and grass, 6"-8"of sr�ty Gravel(Fill} � SM Brown silty fine SAQVD,medium dense, mofst y.: I.�, 2 � �.I 3 ':� ,� -28%fines 18.4 , r ;i � ;; 4 -iron oxide staining, mottled 1 �� - obable seasonal hi h roundwater table at 4' ��,�, ,, SM Brown sifty SAND with gra�el,medtum dense,moist �� '' s -contains 6" Interbed of poorly graded gravel :, .:: �� ; :� � T $ GM Grades to brown sllty GRAVEL with sand, medium dense,moist , -corrtains cobbEes &9 9 -corttains poorly graded grevel interbeds 10 -b�COR12S w2t -becomes water 6eari at 10' Test pit terminated at 10.5 feet befaw existirtg grade due to excessive ca+nng and groundwater seepage.Groundwater seepage enoountered at 10.0 feet during excavahon. � � � � c� U W a l� �A � Test Pit Log s Earth Consulting Ineorporatcd cedar�iver stauon � King County,Washington � � � Pro].No. 9060-2 Dwr�. GLS Dai�e Aug.20DQ Chedced MGM oate 8/22/00 plate A7 3ubsurtace c.or�tions depkxed represent aur observations at tl�e tima and locatian of this a�ryloratory fwie,mod'fied by�glneering teats,analysis and Judgrnent They are rat necessarrIy representative o(other Hmes and locatlons.We carnat accept responslbAity for the use or lnt�preta8on by oihe�s of lrr(ormation presented on ttus log. Test Pit Log Pr+oject Name: Sheet of Cedar River Statlon 1 1 Job No. Logged by: Qate: Test Plt Na.: 9060-2 MGM 7/26I00 7P-6 Excavatlon ContraCior Approx.Ground Surface Eievatlon: NW Excavating 110' Notes: 0 o t m � surface condit'iw,s: Depth of Topsoif 2":grass General W Notes (°k� � � � LL � � N , SM Brown siliy SAND, medium dense, moist 1 - -trace vel �..1 . Z GP Cray pooriy graded GRAVEL with sand, medium dense, mofst �: 3 ' � ' -contains cobbles w 3.a �.� 4 -subangular to rounded gravel !• � • 5 t� -caving �� s w � i'i . 1 . � w ... �1� 8 -becomes wet,slight increase in silt content �► -becomes water bearing at 9' 5.9 �� 9 . �� Test pit ferminated at 10.0 feet below existing grade due to excessrve caving. Groundwater seepage encfluntered at 9.0 feet during excavation. � � Q � a � 0 � , � a O fV � Test Pi#Log s Earth Consultfng ineorporated Cedar River Station a King County,Washington � � Proj.Na 9060-2 Dwn. GLS Date Aug.2000 (�eGced MGM Date 8122100 Plate A8 Subsurface condiNons dep'�ed represent our observations at the tlme and locatfan of this expforatory hole,mo�fied by eng�eeru�g tests,analysis and Judgment. They are not necessarlly representative of other tlmes and Iocatlons.We cannat aa:ep!rosponslbiliEy for the use or interpretaUon by others of informatlon pr�senied on�Ia log. ,-,h ;\ i_� � ' ,.*_.. l � \i ,� �` /, ,. ti , � i � I,.-, �.._ i� `. i APPENDpC B LABORAT�RY TEST RESUI.TS E�9060-'12 I ' ' � � • ' • � .,� �; �Ii�I�I��lifi�l��l�lll�i��ll�llll��lflllll�� :. �ll�i�l��lllli��l�ill�l��lil111i��lll�lil�� ,��if1�A��llll�l��l�ll �I��I�IIli��lllllll�� _, �il�l�l��f��flll�l��l��t �1��11�1111��1111111�■ �, �Il�l�l��r�l��;!I�I��I�I�I�Ir�lf�llll��llllill�� , . �il�l�l��'�II11��I��i��1��II�IlI1��III�li1�� , �I1�IE1��ii�:�!.�!��fr�1��II�lIII��IIIl111�� .�I1�I�I��Ilfli�'.�i�N!�l�i'��f�1111��f1�111�� , �1��1�1��1lli�l�ii�l�':�I��li�illi��lilllll�i .�II�I�II��II��I��i�lll�l��'�!'��Ili��lllllil�� .,. .. . , , . . ,, �� . . � .��.�o o....�..� o..�...... a�� i■� Q�� ■��■i�� . . ... . �s�ici■o oAio . , � �„ ,, , , , , �. �� ,. ; , - � .: ; - ,,, _..� � ,. � �.--� : �:._ .:, , . . , � �� . . , � � • �� . �� . � . , , „ , . :��. � . �„ ■ ,��. � : � �� . •. , i . �:. � � . • _ I �� ' I -• ` . , . ��..F . . . L._--------- --------- " ---- . _ , v � i October 19, 2012 ES-2518 � Eagle Creek Land & Development, E.LC Earth Solutions NW ��c 15215 Southeast 272"� Stneet, Suite 201 Kent, Washington 98042 • Geotechnical Engineering • Construction Monitoring Attention: M�. Jim Otness • Environmental Sciences Subjec� Cedar River Station 15221 Southeast Renton-Maple Valley Road Renton, Washington Reference: Earth Consulting Incorporated Geotechnical Engineering Study E-9060-12, October 1, 2007 Dear Jim: As requested, Earth Solutions NW, LLC (ESMIU) has reviewed the referenced geotechnical engineering study. The undersigned engineer afso vis�ted the site to obseroe the exisfing site conditiona. Review of the referenced study indicates the site is underlain by predominantly by medium dense to dense sand and gravel, with the upper three to four feet consisting of loose to medium dense silty sand. The study indicated the proposed development consisted of single story retail buildings. The site was observed to be vacant. At the time of our site visit, the site was vegetated primarily with grasses and weeds. Based on review of the referenced study, and the existing site conditions, in our opinion the recommendations included in the referenced study remain appiicable for the proposed development. If you have any questions, or if additional information is required, please cal(. Sincerely, EARTH SOLUTION i LLC �a. c� y� o�w�� - s,��. .'`�� i ¢ � � �1�A��'1r Kyle R. Camp Principal I 1805-136th Place N.E.,Suite 201 • Bellevue,WA 98Q05 • {425)449-4704 • FAX(425)449-4711 �� . �� .: l', :\ I! `_ ' t �� II �'`.. APPENDIX D Drainage Complaints and Map • � Drainage Complaints -CLOSED Rec Complafnt problem Typa Rocd Date Close Dab Address PIN Comments � 1996-0384 CREEK R 3/15/1996 11/5l2002 SE 14937 RENTON- 2323059118 MADSEN CREEK POND SEDIMENT LOAD. SEDIMENT REMOVED BY KE 2 1996-0384 CREEK FCS 2/9/1996 11/5/2002 SE 14937 RENTON- 2323D59118 MADSEN CREEK POND SEDIMENT LOAD 3 1996-0384 CREEK RF 3/15/1996 11/5/2002 SE 14937 RENTON- 2323059118 MADSEN CREEK POND SEDIMENT LOAD 4 1997-1098 RDDAMAGE FCS 6/23/1897 7/3/1997 14937 RENTON- 2323059118 MAINTENACE REQUEST MApSEN CREEK POND 5 2000-0700 DCA C 10M312000 10/30/2000 SE 14645 RENTON 2323059020 PRIVATE DRAINAGE PROJECT AT WONDERLAND MOBILE HOME PARK. 6 2001-0378 MNM FCS 6/14/2001 B/22/2001 14645 RENTON MAP 2323059020 CONCERN REGARQING KIDS PLAYING IN POND CAUSING DAMAGE i � 2003-0804 WQAI WQA 11I11/2003 Bl3012005 5E 15400 155TH PL 2328780000 W(]A PER MCL g 2003-0876 REM FI 8/4/2003 3/24/2004 15711 152ND AVE S 2323D59021 Total Lot Area=2,401,896 sq ft(55.13 Acres).Total Impervfous Surface=29 — o _ g 20040325 WQAI WQA 2/26/2004 9/27l2008 15031 MAPLE VALLE 2323059021 WQA FROM MCL REQUEST 1� 2004-0505 MNM FCS 6/25J2004 3/30l2006 8 152ND AVE SE SE 2323059021 Work Authorization to mow 8 remove sediment 11 20o5-o�az MMF C 3I7/2005 3/15/2005 14645 RENTON- 2323059020 Ditch backing up onto Wonderland Estates Mobtle Home Park.Investigation f 12 2005-0142 MMF R 3/15/2005 3/15/2005 14645 RENTON- 2323059020 Ditch backing up onto Wonderlend Estates Mobile Home Park,Investigation f �3 2005-0522 REM FI 9/8/2005 12/12/2005 SE 95300 155TH ST 2323059210 Total Lot Area=162,388 aq ft(3.73 Acres).Site currently under construction. 14 20o�-o�aa RFN FCC 2/28/2007 3/8/2007 SE 15400 155TH PL 2329780000 Condos flooding D982017 Inv found 2 issues.D98201 pond outlet blocked by ��j 2007-0245 REM FI 8/5l2006 6/28/2007 SE 15325 155TH PL 7331000000 Total Lot Area=388,787 sq ft(8.93 Acres). Total impervious Surface=239,1 — o � 16 1998-0630 DUMPING FCC 9/21/1998 9/21l1998 SE 15400 155TH PL 2329780010 DUMPIN TRASH IN POND POND MAINT REQU �� 1999-0445 MAINT FCC 6/3/1999 6/28M999 SE 15400 155TH PL 2323059185 POOR CONDITION OF MITIGATED WETLAND j g 2001-0092 MMG FCC 2/9/2001 3l24/2001 SE 15400 155TH PL 2329780010 CONSTRUCTION OF DITCH ON ADJACENT PROPERTY. PICKS UP SHEE T FLOW FROM HILLSIDE �9 2001-0161 MMG FCC 3i16/2001 3/30/2001 SF 15400 155TH PL 2323059185 REQUES7 FOR INFORMATION TO COMPLE7E MCL REQUIREMENTS. 20 2001-0193 WQB WQC 4/3/2001 4/21/2001 SE 15400 155TH PL 2323059185 ALLEGED DISCHARGE OF OIL POLLUTANTS INTO DRAINAG ESYSTEM. #BO INVESTIGA710N DID NOT CONFIRM PROBLEM 21 2003-0869 REM FI 7/1t2003 3/24/2004 SE 15325 155TH PL 2323059185 Total Lot Area=388,787 sq ft(8.93 Acres).Total Impervious Surface�310,2 94 sq ft(7.12 Acres).Total Percent Impervious=79.8°�=Rate Category 6 H � , : �t"C'1. �t'�t��'�`��C3��'Ct��f�� - -, _ . : , ._ , < � ----- _ _ � j � � � � � - � _�� , � i - - _�..,. _�� 3� �'`` 1 i� ��_r ' � �. , ��.,� �,�,. � , � �_ ��: � �� .,� � �` -_,,� ; .�i,!.� " ^� � � � s � �: � t� � � �. ' j � � .--�. � ^_ .�-`� ��,' j � � =. �-.---..-r._. � � . � - -. . � � ��.. � i �r��~��'� ` � : s � )j ;�J �� •��ti _. . X �` 1` .� •��.,�- S ` �\.' �� .''�.. � . ti `ti :� y ♦ :.`�;-� � F,,. i 1 .� �� ,�� i . i � � � � � � �� j � R�nt�n • ,�,� � � � �..`�,,;� ,% ,; , ��i��, � ` � �`` � `` `�`` //) F i++ `... � '��il �~ ' $j `� \. �' 4� ,(j.a S`' ,��1 �� . ��`, .`.� _t� f��#\'( v` « �'-a�` �~�W w�.�� ;�;. �.. _ ��l�E `�y y �- :� ` '4 � �i � � ;. __.. ' _.�., .... �Jti4`�� `y�� .�`�� jff�fi `�„'��;� �� i ... 1+.�\� �.��'� � f ��: J- �?1 � � � h�� --� � � � `��',f'�� -` �y �`. �- i� � � �``;r ,�� t1 - � . . '�[�� E i� � ' � , �.� `y,: r:'� ._ q. .w. fi 7 JI +�! r '��' �,.��_ '� ; �\ � \ 'n. , /��l . '�^-..� '�� ! ` � .; a �� f C .�/ �'i �...., : ( ,r ��,^�-_.�"`��^-� �# �— � E .�...«..., .�.��..... � d.� � ~ "?� j ' t j�., x'� ��`'`��'t e i�l`v�`,�.. � '�"+�,-'�._ ` �1��, � - �' ,�a• � ��Z. �-w.•� �� :�..,��t� ..� . . � ` � ti��'..�--``�-�R�Nz �_. � �' '� � ~ °a'� �• � .� ��4�ti4 =`-."--��N.M�,A , �;`. y1 ��.��^.��\�$sc ` ;'G'_�-�.,t,f.y,��t�Y , -- / ;,.� ,. �t. �sC!- 14� .. .. . . . " Y i{L t. - �.. "��ii'� � •-i��"'',^-j.._ � , � � �'"� �< R � S --�- _ , �.�.:L�l.� ,��;`��.:` �� I�j i� 1`� , i j�j z �t � �� ~~'�-`_ � '_ � - ,� _ t �3�� j�i 1 C� j��=-- _-:�-�.�., � � ,` , � ��'\�; \ � \� �� `� � ♦ � �� ` _ �� ,� � ,'��r d �,�;� ��.::.�� 1. k�: ��\ ` .� .�� ti\ '�1\�� E �..Z� � � \ .��\ � �� 1� \� � \�� .�� ti ' �� ,� t ;� ��. �•.�� \�t,1;�� ., � •r�-- � �: , �L= +}�'`"\.� `� `��`�i,��..`��`�;��.tti��.�•a��.��ti'.��`>��t� ""'�z�� `.`;,��C�:�.�\�ti��` .yr� ,4� �� C .�� _�� t t � ti � ��ti � \\ \` ` r � �♦ '�\ \\ �� , � \\�� ,`: �P ` � �.� .,�� . � \1`ti��. �� t �� \ < �k�r �Z ` �� `��` � vl �\ti. ��:�� :ti\�,. �� ` � � � ;� t. �� t �. � �-. �� . ��, \•,�,. ' ` ti, � 1� � .�t�ti � � i ,:; � { ��.�� ` `'� ,�� `� �,.�` ti�`� ��\1� �.��: � .. �� ` ��` ti�� -�.ti} �,�w.�� „� ti \ r �� \� �� `� ..» `� � `� � \ �� t ti� ` � "�.� ��,.��\ `•I �. ;� ! \ �� . o�,�, � ; :.� ��1 `�� `�� -`t" ; $� �� ``� � � � � � �- \ �\ , ` F'�1�� , � t. � �� : ti`��, �� \\\ �� L �, �� \. � t� �� \\�1 �` � � �� \ti��i� ��\,` i � y��.„` F t��` � �\� :\ t � . ti �.\�.\ titi ` �`il\� �� \\ � `�, � �,'*. � �l \�� . ti \ \ \� � - (� - . � �\� \a`��.�� t t(x�,t \�t� �� s �\ � -�»�� \: � \`E\�vt�1� �; ,E.: � -�� ; r,�` ,� �� ` ,�":� � �.�` ��; ` �� ,� ��1i,.� „ a �.. , . . � ��, 1� � ��`��,�,1`��4� � �� .:�, �.��.ti,t.. , ...�. , j �}. r �:.`�`�ti .� �` ��.\ �., � �,.� � �c-� �; � � \ ��`�.'y t � �-� �� ♦ � �� ti�,� � � \ ��`�� A �� \�� tiv � r�� _ t �,.. �. .�, y 4 ��: ��` � -��, �� :1\ �\\�ti ` � �, � � �� .. � ��ti� ♦ �� . r , ♦ \��♦ _ � � l. \\� �1 ...\ � � � ��♦ '�� '��Z l\�2-�� v\\ ��' \\ �.. \ �� \\ , >� � , ` � � �� ti � � ,�, � �ti� ,�� :` �� \� �� . B _ �< .` �� Q `\ � , \ �` ♦ � � �fi � �� `� � � � � .\�: ''� S 1;�� \ .,\`\ ` �` �� ♦ \� � �` � ��L � . � \�,�� . !� ��` � �� \ \t�\\ �� \i\♦ ti�*,��\\ �, �\�i� j \ ?\ � `� � `� �� \\�� \ �.�� `�.�; ��'.. L,ti� � �� \\'�\ ti \ `\ti " --.� ��`�`\\,.\��`��:`:`�'`.`�.`� ,�.�.�`�\ti.�: 1\ � � � ��` ��"��: \ � � � �\� \� �. �� __..~"`—�. ��;.\�.\�.,�,\`��`Q.,1�,�,�.,\`�.�.��`t � �. � - \�\ �Z � ��..,.��`��..�e,,��, .;.� ��\\� \�`'` "`�`�4�..��\` '�\ ti � � \ �\�� \ � �\ � ti�r til 1 �',... �,� �\\\\ ` �� ;��`.��Z `t�`�i.titi.�\L�ti��:��.'i;�Y�E�I� ��iZ!\`�,11 ii::..�'�'��< < � . �\\ . �� 1 �� \��.l`��, \��\ \� ��;Y�*�,��.ti�:� ;� ��1\\�l' 1��;,:�\\�? �=��`��+,�ti��4�.:�\��Z� � ,�\� ��.��'\�a� �, ��ti�ti��\ � � :�� 4�,�\�„��\ l�� . . � \ � ti`��ti`.`��\.\\t�,�.� ��\\\\��: `\��\�'��ti��,`��\� \��\ �� .\ � � \� �. ti�� `'» ,�:tt�,� � �tia �,\�� r .�♦��rr� . � `��,�`,��`t��;''\\`�� l� �•` ��r\�;:L .� ti ��L� .��':\\��\'�.:ti\ St� " r��1\��\\�-,..� � .��\\� �� '�`ti��`�ti � � >>�.>>\��\.'�`��\`.�� \\�t��\\��;��ti � � _._.v._ ..�.-__..._ . .�:��_ _ `��:"�``„�\��\�� t;` ` . � � .�`\ ��`�� '�., �. �.; � -,.�... � �� :_< _ , s • � ., r` lc��c� _`_ ,` � 4' I� � � vn this rrnap]sas be�wmpited by Ktia�Co�eniy shaff hmn a - �saucces and'ss `Eo �� I Cw7t�y tt7akes iro �s orwairartUe ex � . . . ��'9e wiYhouT r�lice.Kirc� - � .� . . .,. � TaP^�R� s, Aress or unp�,as to accuracy� -time}inass,m rtghts to-U1e uge ot�ch irr(ar.�tlon.' � ... ��s�, Thi6 dnaansnt ia nd'utt�tnd�d far use as a�rvey{xe�ud Km3 Cnunty simil ao:be l�hte far�Y 9�era4,sPe�al,indirect,irader3Sa1,ot consequa�6ai . a '""� ,� dernagec hdudra�},bnf pd Urc1ed Ya;bst rev�nt:es ar{ost prof�9 r�lling from Siie use or misi,..<e ot�e hfom+atiarr co�,ained a»this map.Anq sale of ��„��Ou��_ ' $ifs me�ar iMamia�da an Ws map ir Prahi�'ted ew�pt by wrstten pexm.�aian ot IGng�cunty.�� .� � � i� , i I, � . _ _ . . . . _ . . . _ _ . D2daE3Li9Pm0$ Sou�os;FGrg:CWn�'iMAP-StamWatGr(Mtp:ilwxw:metrokc.gavlGfSfiMAPJ - - _ / � �� _ �., . �� ,. � l IOng County Water and Land sesources Diulsion-Drainage Services Sectlon Printed: 11I8/2012 10:15:02 AM NuroMer �pe TllMe,f ProYle� Ad�ress of Pnblee Can�eata Trros P�� 2002-0275 FCS MNM 14900 RENTON MAPLE VALLY No problem found 656J5 (needs maintenance) 2002-0421 FCS MMG 15619 SE 157TH ST REQUEST TO REMOVE DANGEROUS 657A5 (needs maintenance, not at or downstream from site) 2002-063'! C DDM 15827 SE 156TH CT OPEN CHANNEL CONVEYANCE 657A5 2002-0631 R DDM 15827 SE 156TH CT OPEN CHANNEL CONVEYANCE 657A5 (not at or downstream from site) 2003-0435 C MNM 15619 SE 157TH ST REQUEST TO REESTABLISH DRAINAGE 657A5 2003-0435 NDA-F MNM 15619 SE 157TH ST REQUEST TO REESTABLISH DRAINAGE 657A5 2003-0435 NDA-Q MNM 15619 SE 157TH ST REQUEST TO REESTABLISH DRAINAGE 657A5 2003-0435 R MNM 15699 SE 15TTH ST REQUESTTO REESTABLISH DRAINAGE 657A5 (not at or downsVeam from site) 2003-0826 C DTA 15643 156TH PL SE WATER SATURATED YARD. APPEARS 657A5 (not at or downsfream from site) 20040505 FCS MNM 152ND 8� SE RENTON MAPLE Work Authonzation to mow&remove 657A5 2005-0142 C MMF 14645 RENTON-MAPLE Ditch backing up onto Wonderiand Estates 656J5 2005-0142 R MMF 14645 RENTON-AAAPLE Ditch backing up onto Wonderland Estates 656J5 (same as in previous list) 2006-0440 FCS TRE 15705 SE 157TH ST Fallen Vee in/near KC project. Inv found 657A5 (not at or downstream from site) 2007-0148 FCC RFN 15400 SE 155TH PL SP1 Condos flooding D98201?tnv found 2 657A5 (same as in previous list) 2007-0296 C RFN 15619 SE 157TH ST Runoff from greenbelt into yard. Open 657A5 2007-0296 R RFN 15619 SE 157TH ST Runoff from greenbelt into yard. Open 657A5 2008-0137 C DTA 15601 SE 157TH ST Excess water on property.Owner asked that 657A5 2008-0246 C DDM 15325 SE 155TH PL, M6 Groundwater from greenbel� lnv found 657A5 2012-0148 WQC WQO 15635 SE JONES RD Leaking fuel oil from old tank into Cedar 657A5 2012-05d9 WQC WQD 156'!3 SE JONES RD Oil sheen in Cedar River 657A5 (not at or downstream from site)