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HomeMy WebLinkAboutRS_Drainage_Technical_Report_220920_v1 ENGINEERING REPORT Technical Information Report Seattle Sounders FC Headquarters & Training Center Renton, WA August 2022 PREPARED BY: COUGHLIN PORTER LUNDEEN 801 Second Avenue, Suite 900 Seattle, WA 98104 P 206.343.0460 CONTACT / Tim Brockway, PE, LEED AP BD+C Drainage Report Seattle Sounders FC Headquarters & Training Center Coughlin Porter Lundeen Project Number: C22010 August 2022 TABLE OF CONTENTS Drainage Report ......................................................................................................................................... 1 TABLE OF CONTENTS .............................................................................................................................. 1 I. PROJECT OVERVIEW ............................................................................................................................. 1 General Description .................................................................................................................................. 1 Existing Conditions ................................................................................................................................... 1 Proposed Drainage System ...................................................................................................................... 2 Special Requirements: ............................................................................................................................. 4 Project Specific Requirements: ................................................................................................................ 5 III. OFF-SITE ANALYSIS ............................................................................................................................ 6 Task 1 – Study Area Definition and Maps ................................................................................................ 6 Task 2 - Resource Review ....................................................................................................................... 6 Task 3 - Field Inspection .......................................................................................................................... 6 Task 4 - Drainage System Description and Problem Descriptions .......................................................... 6 Upstream Analysis ................................................................................................................................ 7 Downstream Analysis ............................................................................................................................ 7 Task 5 – Mitigation of Existing or Potential Problems .............................................................................. 7 IV. FLOW CONTROL AND WATER QUALITY FACILITY ANALYSIS AND DESIGN .............................. 8 Existing Site Hydrology (Part A) ............................................................................................................... 8 Developed Site Hydrology (Part B) ........................................................................................................... 8 Performance Standards (Parts C) ............................................................................................................ 9 ON-site Best Management Practices (on-site BMPs) Part D ................................................................... 9 Water Quality System (Part E) ............................................................................................................... 10 V. CONVEYANCE SYSTEM ANALYSIS AND DESIGN .......................................................................... 12 Standard Requirements (based on 2022 RSWDM and SAO): .............................................................. 12 On-site Conveyance ............................................................................................................................... 13 Existing Conditions: ............................................................................................................................. 13 Developed Storm System Description: ............................................................................................... 13 VI. SPECIAL REPORTS AND STUDIES .................................................................................................. 14 VII. OTHER PERMITS ............................................................................................................................... 15 VIII. CSWPPP ANALYSIS AND DESIGN ................................................................................................. 16 Standard Requirements .......................................................................................................................... 16 ESC Plan Analysis and Design (Part A) ................................................................................................. 17 SWPPS Plan Design (Part B) ................................................................................................................. 17 IX. BOND QUANTITY, FACILITY SUMMARIES, AND DECLARATION OF COVENANT ...................... 18 X. OPERATION AND MAINTENANCE MANUAL .................................................................................... 19 Standard Maintenance ........................................................................................................................... 19 Appendix A – Figures .............................................................................................................................. 28 Figure 1 Technical Information Report Worksheet ............................................................................. 29 Figure 2 Parcel Reports ...................................................................................................................... 32 Figure 3 Vicinity Map ........................................................................................................................... 37 Figure 4A-E City of Renton Critical Areas Maps ................................................................................. 38 Figure 5A Existing Conditions ............................................................................................................. 43 Figure 5B Historical Conditions…………………………………………………………………...………...44 Figure 6 Drainage Basin Map ............................................................................................................. 45 Figure 7 Proposed Conditions............................................................................................................. 46 Figure 8 Flow Control Application Map ............................................................................................... 47 Figure 9 FEMA FIRM Map .................................................................................................................. 48 Figure 10 Downstream Analysis ......................................................................................................... 49 Figure 11 Drainage Complaints .......................................................................................................... 50 Figure 12 Bioscape Sizing .................................................................................................................. 51 Appendix B – Engineering Calculations ................................................................................................ 52 Figure 1 Conveyance Map ................................................................................................................. 53 Figure 2-13 Conveyance Analysis ...................................................................................................... 54 Figure 14 WWHM2012 Water Quality Sizing Report…………….……………………………………….69 1 I. PROJECT OVERVIEW GENERAL DESCRIPTION The following Technical Information Report (TIR) provides the technical information and design analysis required for developing the Drainage and Temporary Erosion and Sedimentation Control Plan (TESC) for the Seattle Sounders FC Headquarters & Training Center Project. The stormwater design for the project was based on the requirements set forth in the 2022 Renton Surface Water Design Manual (RSWDM) (See Figure 1 – Technical Information Report Worksheet). The Seattle Sounders FC Headquarters & Training Center Project is located within the City of Renton, situated west of Oakesdale Ave SW and south of SW 16th St, (See Figure 3 – Site Location Map). The site is in the NE ¼ of NW ¼ and NW ¼ of NE ¼ of Section 25, Township 23 North, Range 4 East, Willamette Meridian. The site will occupy lots 088670-0110, -0120, -0130, -0210, and -0220 for a total disturbed area of approximately 14.9 acres. Overall, the project will include 575,000 square-feet of sports fields, approximately 718,000 cubic-feet of floodplain mitigation, and the installation of storm conveyance infrastructure. Soils for the area were mapped using the King County Soil Survey maps (See Figure 4A– USDA Soil Survey Map), and a Geotechnical exploration has been performed to address slope and soil characteristics. This project proposes to construct a drainage system with a new network of underground pipes and catch basins to collect surface water runoff throughout the site and direct it to a water quality treatment facility that will be constructed adjacent to Pond B which exists on the property. Treated water from that facility will flow into the existing Pond B, along with higher storm events that are not subject to the requirements for water quality treatment. Pond B was designed for the Boeing Master Plan and was constructed to accommodate the full detention requirements for the overall Longacres Campus, of which this Sounders Field Complex site is a part. From Pond B, the storm runoff flows into the North Pond (Pond A), which in turn flows out to Springbrook Creek and ultimately the Duwamish River. This system is consistent with the conditions of the original Longacres Development Agreement with the City which was the basis for the existing development on the property. Additionally, a series of underground storage chambers (StormTech or Eq) is proposed to provide the flood plain fill mitigation volume, in order to comply with floodplain requirements as outlined in the City of Renton code. EXISTING CONDITIONS The existing site consists of open grassy areas, a large existing office building with associated plaza and walkways. See Table 1 for site surface cover information. The site was previously home to the Longacres Racetrack outbuilding stable and support services area, which was demolished during the development of the Longacres Office Park. Minimal conveyance systems exist within the project site area 2 and runoff now leaves the site via surface flow which makes its way ultimately to the South Pond B. There is a total elevation change of approximately 7 feet across the site, from 14.7 feet along the pond edge in the western region to 21.5 feet in the eastern region of the project limits. The site is generally otherwise considered “flat” terrain. PROPOSED DRAINAGE SYSTEM This project proposes to construct a drainage system with a new network of underground pipes and catch basins, to collect the drainage from the surface and under-drain system of the sports fields on the site, as well as the surface water runoff throughout the walkways and other areas adjacent to the fields within the project site. This system will direct runoff to a flow splitter that will direct larger flows that do not require water quality treatment, directly to Pond B. Smaller flows will be directed to the water quality treatment system. Flows from this facility will also be directed into the existing Pond B. See Table 2 for site surface cover information. According to Figure 1.1.2.A of the 2022 Renton Surface Water Design Manual (RSWDM), this project meets the criteria for a Full Drainage Review, including water quality requirements. All water quality on site will be provided in a system, designed according to Chapter 6 of the 2022 RSWDM and complying as required in that section with State Ecology GULD designation requirements. In order to provide the required enhanced basic water quality treatment for the soccer fields, the project plans to implement a Bioscape open system using Filterra media, along the Pond B edge, downstream of the fields. This system has General Use Level Designation (GULD) approval for enhanced basic treatment, therefore allowing its use per the RSWDM. The Bioscape facility will be separated from flows above the required treatment event by a flow-splitter manhole. See Image 1 below for representative images of the Bioscape system. This system is a scalable open-topped version of the Filterra Bioscape inlets and vaults that have been in use around Puget Sound for many years. This installation allows for a more site-integrated design at a larger scale to treat the large field system. Bioscape sizing for this project is finalized and sizing calculations are provided in Section IV of this report. Appendix A Figure 12 – Bioscape Sizing, summarizes the sizing calculations. Appendix B Figure 14 comprises of the continuous modeling WWHM report which includes the water quality flow rate used for sizing the Bioscape basin. 3 Image 1: Filterra Bioscape System Conveyance for the Sounders site will be a combination of closed 12, 18 and 24-inch pipes. These pipes are designed to carry the field runoff to the water quality Bioscape system or directly to the Pond B, depending on the storm intensity. Stormwater runoff from the upstream existing parking areas will be intercepted and rerouted, in a 24-inch pipe through the site, to discharge into South Pond B directly as it currently does. All conveyance on site will be designed according to Chapter 4 of the 2022 RSWDM. 4 II. CONDITIONS AND REQUIREMENTS This section will address the requirements set forth by the Core and Special Requirements listed in Chapter 1 of the City of Renton Surface Water Design Manual. City of Renton Surface Water Design Manual Core Requirements: 1. Discharge at the Natural Location (1.2.1): This project proposes all runoff to be conveyed to the natural discharge location which is the existing south Pond B. 2. Off-site Analysis (1.2.2): Refer to Sections III and IV. A Level 1 downstream analysis has been performed. 3. Flow Control (1.2.3.1): Refer to Section IV. The project is located in a Peak Flow Control Area. Flow control is not proposed for this project, as there is no increase in flow during the 100-year event, versus the original Pond B design, based on coverage assumptions listed with that project’s permit documentation from Sverdrup to the City. 4. Conveyance System (1.2.4): Refer to Section V. Closed pipe systems, treatment catch basin and extension connections have been provided for stormwater conveyance. 5. Erosion and Sedimentation Control (1.2.5): Refer to Section VIII and the demolition/TESC provided as part of this submittal. The project will construct a series of sediment controls to address the specific conditions at the site. 6. Maintenance and Operations (1.2.6): Refer to Section X. The proposed storm drainage system will be privately owned, operated and maintained by Seattle Sounders FC and Unico Properties. 7. Financial Guarantees and Liability (1.2.7): The Sounders and their contractor will obtain all necessary permits and bonds prior to the beginning of construction. 8. Water Quality (1.2.8): Refer to Section IV. Water quality treatment for runoff from target pollution generating surfaces will be provided by Filterra Bioscape open filtration system. See Section IV for more information. 9. Onsite BMP (1.2.9): Refer to Section IV. Onsite BMP’s have been addressed to the maximum extent possible. See Section IV for more information. SPECIAL REQUIREMENTS: Special Requirement #1. Other Adopted Area-Specific Requirements Section 1.3.1 • Critical Drainage Areas (CDAs): Not Applicable • Master Drainage Plans (MDPs): The Development Agreement for the Boeing Longacres Masterplan governs drainage requirements for this. While the Development Agreement is no longer active, this document is provided to provide context on the existing drainage system, its compliance with the Peak Flow runoff requirement on this campus and showing that the Sounders proposed improvements do not warrant the need for additional detention. 5 requirement on this campus, and showing that the Sounders proposed improvements do not warrant the need for additional detention. • Basin Plans (BPs): The project is located within Black River Drainage Basin. • Salmon Conservation Plans (SCPs): Not Applicable • Lake Management Plans (LMPs): Not Applicable • Shared Facility Drainage Plans (SFDPs): Not Applicable Special Requirement #2. Flood Hazard Area Delineation, Section 1.3.2: See Figure 9 for 100-yr flood zone. Filling is planned for within the 100-yr flood zone. Compensatory volume is being provided in the footprint of the fields from elevation 14.7 to elevation 20 in the form of a hybrid rock storage and chamber system like the CULTEC Recharger or Storm Tech system. Special Requirement #3. Flood Protection Facilities, Section 1.3.3: Compensatory storage to offset the proposed fill within the floodplain, is proposed as described in SR#2 above. Special Requirement #4. Source Controls, Section 1.3.4: See attached Activity Worksheet and Required BMP’s. Special Requirement #5. Oil Control, Section 6.1.5. Minimal traffic is anticipated in this area. No oil control is required. Maintenance of the fields will consist of occasional small “Gator” type vehicles or pickups, on a limited basis. Special Requirement #6. Aquifer Protection Area. Section 1.3.6: Not included as a special requirement in Section 1.3 of the 2009 King County Surface Water Design Manual. PROJECT SPECIFIC REQUIREMENTS: There are no applicable project specific instructions. Design and construction will abide by the requirements set forth in these documents. 6 III. OFF-SITE ANALYSIS TASK 1 – STUDY AREA DEFINITION AND MAPS The Renton drainage basin map was used to verify that the site was fully in the Lake Washington South drainage basin (See Figure 6 – Drainage Basin Map). TASK 2 - RESOURCE REVIEW a) Adopted Basin Plans: Black River Drainage Basin b) Floodplain/floodway (FEMA) Maps: Site is located in the floodplain (See Figure 9) c) Off-site Analysis Reports: Not Applicable d) Sensitive Areas Folio: Sensitive Areas are present on the site. See Figure 4A-E and the Wetland Analysis Report by Talasaea Consultants, provided separately e) Drainage Complaints and Studies: No Drainage Complaints. See Figure 11. f) Road Drainage Problems: No Current Road Drainage Problems. g) King County Soils Survey: See Figure 4A – USDA Soil Map h) Wetland Inventory Maps: See Wetland Analysis Report by Talasaea Consultants, provided separately i) Migrating Rivers Study: Not Applicable. j) DOE’s Section 303d List of Polluted Waters: See Section VIII, Part B of this report for Category 5 listings. k) KC Designated Water Quality Problems: Not Applicable. l) City of Renton Critical Maps: See Figure 4B-E. TASK 3 - FIELD INSPECTION Coughlin Porter Lundeen conducted site visits in preparing the project plans. Please refer to Task 4, Downstream Analysis below for more information. TASK 4 - DRAINAGE SYSTEM DESCRIPTION AND PROBLEM DESCRIPTIONS Runoff from the site will be conveyed through new and existing storm elements that discharge to the existing on-site Pond B. The proposed field project will provide a pass-through bypass pipe for the flows from the adjacent parking lot, and will itself discharge to the same location on the site, the existing Pond B. See Appendix A, Figure 10 – Downstream Analysis. 7 Upstream Analysis The site is within the Black River and specifically the Springbrook Creek drainage basin. This site is located generally at the high point of the area topography, with a limited area of train track embankment to the west that drains onto this site perimeter. Runoff from this area will be directed north or south as it currently does into offsite areas. To the east is Oakesdale Avenue, which is improved and provides no runoff to the site. To the south is Kaiser Permanente campus property which drains north through this property via a pond and ditch that connect to the existing Pond B as this project will also do. See Figure 6 – Drainage Basin Map, for reference. Downstream Analysis As delineated in red on Figure 10 – Downstream Analysis, runoff from the site will be conveyed to a new water quality vault, then into South Pond B. The site discharges to the managed stormwater system within the Longacres property which was sized and constructed in anticipation of receiving undetained and untreated runoff from this site. That system drains to Springbrook Creek in accordance with the Development Agreement and associated Master Drainage Plan for the Longacres Office Park that was previously permitted by the City and State. Springbrook Creek, in turn, drains to the Black River and, ultimately, the Duwamish River and Puget Sound. No known drainage problems have been reported with this conveyance system beyond routine maintenance such as at the City’s Oakesdale Avenue crossing culvert which frequently becomes clogged with debris based on field reconnaissance and anecdotal conversations in the past with Boeing maintenance personnel. TASK 5 – MITIGATION OF EXISTING OR POTENTIAL PROBLE MS The proposed project will not increase the originally permitted amount of impervious area, which was anticipated in the design for the current on-site ponds, A and B. The historic ground cover of this site, since before 1929 when an aerial photograph shows the presence of the original Longacres racetrack, with paddocks, maintenance yards, etc, has consisted of primarily asphalt, gravel, heavily compacted till soils, and sparse areas of compacted “lawn” as described by the RSWDM, adopted from King Count SWDM. While the existing ponds and drainage systems on site were intended to be the sole water quality and detention systems needed for a fully developed site, the current Sounders facility project will be installing water quality systems in accordance with the 2022 RSWDM. A Filterra Bioscape open filtration basin is proposed at the downstream end of the new Sounders facility. This system will be sized to meet Ecology GULD requirements for treatment associated with the Enhanced Basic level as required for this project. Flows exceeding the required treatment rate will be directed around the Bioscape system via a flow splitter located above the facility. These higher flows will be directed into Pond B, which provides a Large Wetpond water quality function as described in the KCWSDM as adopted by the City of Renton into their RWSDM. 8 IV. FLOW CONTROL AND WATER QUALITY FACILITY ANALYSIS AND DESIGN EXISTING SITE HYDROLOGY (PART A) The 14.9 acres of proposed site improvements currently consists of a mixture of grassed and paved areas. The site slopes generally south-southeast to north-northwest with about a 3-foot elevation change throughout most of the area. Larger grade differences exist in localized areas within that plane, especially along the western edge of the project site which is adjacent to Pond B’s side-slope. The site area conditions are illustrated in Figure 7 and summarized in Table 1 below. TABLE 1 - EXISTING SITE CONDITIONS AREA BREAKDOWN DESCRIPTION AREA (SQUARE FEET) AREA (ACRES) 1995 BOEING MP/EIS (%I) TOTAL PERVIOUS 545,110 12.52 29.2 TOTAL IMPERVIOUS 114,444 2.62 70.8% TOTAL DISTURBED AREA 659,554 15.13 15.19 DEVELOPED SITE HYDROLOGY (PART B) The developed site will closely resemble the original land use coverage allowed under the Boeing Longacres Master Plan and associated EIS. As described above, the historic land cover of the Longacres site is mostly impervious, with some areas of grass. The addition of the new fields and related site improvements will result in similar site hydrology as the existing Longacres (formerly Boeing) detention system was designed to accommodate. According to the definitions within the RSWDM, this project will consist of 10.52 Acres of Impervious area, which includes the lined, under-drained synthetic fields, and 50% of the unlined, under-drained natural turf fields. As well as 4.40 acres of Pervious area, including half the natural turf areas as well as the perimeter landscaping. These totals also include the associated hardscape being added and/or replaced on the site. See Figure 7– Proposed Conditions, for reference. 9 TABLE 2 - DEVELOPED SITE CONDITIONS AREA BREAKDOWN DESCRIPTION AREA (SQUARE FEET) AREA (ACRES) PROPOSED COVERAGE TOTAL PERVIOUS 190,992 4.38 29.0% NEW IMPERVIOUS (NEW PGIS) 468,562 10.76 71.0% TOTAL DISTURBED AREA 659,554 15.14 100.0% PERFORMANCE STANDARDS (PARTS C) According to Section 1.2.3.1 (See Figure 8 - Flow Control Application Map) of the 2022 Renton Surface Water Design Manual (RSWDM), this project is located within the Peak Flow Control area. Although this project lies within a flow control basin the proposed changes are less than both the 1995 Sverdrup design for the Boeing Longacres project, which contemplated 70.8% impervious coverage, but also significantly less than the original pre-1980 Longacres coverage. Given that the project development provides less impervious coverage than the original design for the existing flow control ponds, we do not propose to provide additional detention. To mitigate the impacts of storm and surface water runoff generated by new impervious surface onsite BMP’s are proposed. Per Section 1.2.9 of the 2022 Renton Surface Water Design Manual (RSWDM) for implementation of BMPs, an evaluation of the BMPs was done. Since the fields represent Pollution Generating Impervious Surfaces (PGIS) as defined by the RSWDM, a Filterra Bioscape filtration system, which conforms to State Ecology GULD requirements for Enhanced Basic criteria, is proposed. ON-SITE BEST MANAGEMENT PRACTICES (ON-SITE BMPS) PA RT D Onsite BMP’s have been assessed for this project to mitigate the impacts of storm and surface water runoff generated by new impervious surfaces, existing impervious surfaces, and replaced impervious surface targeted for mitigation. Due to the till soils on site, the LID performance standard does not need to be met and bioretention is being implemented for the development as a BMP. However, all other BMP’s have been assessed to the maximum extent possible per section 1.2.9 of the 2022 Renton Surface Water Design Manual (RSWDM). See assessment below. 10 On-site BMPs Assessment SECTION REFERENCE BMP DESCRIPTION ACTION Section C.2.2 Full Infiltration Full Infiltration is infeasible because the soil types found on site are not conducive to infiltration, per the Geotechnical Analysis. Section C.2.3 Limited Infiltration Limited Infiltration is potentially possible underneath the pervious natural turf field areas, which will not be lined. To be conservative, no infiltration is included in any design assumptions for stormwater design. Section C.2.4 Basic Dispersion Basic Dispersion is infeasible because there is not sufficient length to install a dispersion trench, and there are no locations where a “vegetated flow path segment” of at least 25-feet can be created. Section C.2.13 Soil Amendment Soil Amendment is feasible and has been proposed for the site areas beyond the field fencing. Section C.2. Perforated Pipe Perforated Pipe has been deemed infeasible for the project because there is minor roof area which is surrounded by fields that are under-drained. WATER QUALITY SYSTEM (PART E) Section 1.2.8.1(A) of the 2022 RSWDM outlines the specific land uses within Basic Water Quality Treatment areas which are subject to providing Enhanced Basic Water Quality treatment. The project is a commercial site making it subject to Enhanced Basic Water Quality treatment for all new and replaced pollution generating impervious surfaces (PGIS). This will be provided by the Filterra Bioscape system, which has a General Use Level Designation (GULD) from the Washington Department of Ecology for enhanced basic treatment and was deemed suitable for this application. The water quality Bioscape planter will be installed to treat runoff prior from the entire newly developed site, and then discharge into the existing Large Wetpond that is Pond B. 11 TABLE 3. WATER QUALITY TREATMENT AREA SUMMARY NEW PGIS (REQUIRED TREATMENT AREA) PROPOSED TREATMENT AREA DIFFERENCE (%) 322,185 SF (7.40 AC) 322,185 SF (7.40 AC) 0% According to the sizing requirements as outlined by Ecology in their GULD approval for the Filterra Bioscape system, the system on site will require roughly 850 sf of surface area to treat the runoff from the proposed Sounders facility improvements. Using a water quality storm event of 91% of the Annual Storm, calibrated as required by the RSWDM Section 6.2.1 to roughly 2X (Factor k, is 1.93 for this site) the Ecology flow rate requirement is 3.40 cfs. According to the WWHM calculations for this project, the Filterra Bioscape facility sized to this requirement can accommodate the required flow rate of 3.40 cfs (calibrated from 1.7 cfs per WWHM at 91% Annual). The Bioscape provided will capture runoff from all of the PGIS field areas as required. See Appendix A-Figure 12 – Bioscape Sizing for sizing calculations. WWHM modeling output can be found in Appendix B- Figure 14. 12 V. CONVEYANCE SYSTEM ANALYSIS AND DESIGN This section discusses the criteria that will be used to analyze and design the proposed storm conveyance system. STANDARD REQUIREMENTS (BASED ON 2022 RSWDM AND SAO): 1. Facilities must convey the 100-year flow without overtopping the crown of the roadway, flooding buildings, and if sheet flow occurs it must pass through a drainage easement. All stormwater conveyance will be designed such that the 100-year flow is conveyed without flooding any nearby buildings. 2. New pipe systems and culverts must convey the 25-year flow with at least 0.5 feet of freeboard. (1.2.4.1). The new pipe system proposed for this site will be designed to convey the 25-year flow. See Conveyance Calculations under Appendix B. These new 12” pipes will meet the conveyance requirement per Section 1.2.4.1. of the 2022 RSWDM. 3. Bridges must convey the 100-year flow and provide a minimum of two feet, varying up to six feet, of clearance based on 25% of the mean channel width. (1.2.4-2)(4.3.5-6). This project does not propose a bridge. 4. Drainage ditches must convey the 25-year flow with 0.5 feet of freeboard and the 100-year flow without overtopping. (1.2.4-2). This project does not propose open channel drainage ditches. 5. Floodplain Crossings must not increase the base flood elevation by more than 0.01 feet [41(83.C)] and shall not reduce the flood storage volume [37(82.A)]. Piers shall not be constructed in the FEMA floodway. [41(83.F.1)]. The project will place 718,000 cubic feet of fill inside the floodplain. Floodplain mitigation, as is required, will be provided through the use of StormTech or Cultech arched storage chambers, typically used for detention and quite common in Western Washington. These chambers and their associated open-graded gravel backfill, are sized to provide a sub-field storage volume of 850,000 cf. Of this volume, 718,000 cubic feet s being provided to offset the fill of the Sounders fields project, while the remaining 132,000 cubic feet of floodplain mitigation is being provided to offset future construction inside the floodplain by the Longacres Masterplan project, if needed for future permitted work 6. Stream Crossings shall require a bridge for class 1 streams that does not disturb or banks. For type 2 and type 3 streams, open bottom culverts or other method may be used that will not harm the stream or inhibit fish passage. [60(95.B)]. The project does not propose a stream crossing. 7. Discharge at natural location is required and must produce no significant impacts to the downstream property (1.2.1-1). The project will discharge to the existing Pond B in the former 13 Boeing Longacres site, as originally designed under the permit for those improvements that exist on-site. ON-SITE CONVEYANCE Existing Conditions: Generally, stormwater runoff flows from east to west by sheet flow to a few existing catch basins on site. This runoff then flows north and noutheast through the existing Longacres pond and channel system, under Oakesdale Avenue in a City culvert, to Springboork Creek, then ultimately to Lake Washington and then Puget Sound. Developed Storm System Description: The project will redevelop approximately 14.9 acres of the existing site, which currently is parking area and lawn, and replace these surfaces with a sports field complex that is described previously in this report. These new fields and their adjacent walkways will drain into a system of catch basins and under- drains, which will be routed to conveyance piping sized to accommodate the 25-year storm as required by the RSWDM. These pipes will flow west, carrying the runoff to a flow-splitter that will direct the water quality storm event flows to the proposed Bioscape water quality treatment system, and will direct larger flows directly into the existing Pond B combination Detention and Water Quality Pond, as shown in the documents. 14 VI. SPECIAL REPORTS AND STUDIES Geotechnical Engineering Report, Longacres Field Entitlement Prepared by GeoEngineers (dated March 23, 2022) 15 VII. OTHER PERMITS This project will require a City of Renton Civil Construction permit, City of Renton Conditional Use permit, and NPDES permit. An associated Lot Line Adjustment will also be prepared and recorded to correspond with the project work extents. 16 VIII. CSWPPP ANALYSIS AND DESIGN This section lists the requirements that will be used when designing the TESC plan for this site. A copy of the Draft CSWPPP has been included at this time. STANDARD REQUIREMENTS Erosion/Sedimentation Plan shall include the following: 1. Clearing Limits a. Clearing limits are noted on plans and will be implemented prior to any offsite impacts or damage due to construction. 2. Cover Measures a. During construction, temporary cover BMPs will be implemented to prevent erosion. The project will meet wet season cover requirements. 3. Perimeter Protection a. Silt Fence will be implemented around construction limits to preserve undisturbed areas. 4. Traffic Area Stabilization a. The Contractor, per the plans, shall implement necessary BMP measures to ensure sediment does not leave the site onto streets or adjacent properties. 5. Sediment Retention a. Inlet protection will be implemented to prevent sediment from entering the existing drainage system. 6. Surface Water Collection a. Existing stormwater catch basins on-site that are proposed to remain will continue to operate during construction to collect runoff. 7. Dewatering Control a. Dewatering needs shall be monitored throughout construction. 8. Dust Control a. Dust control BMPs will be implemented throughout construction. 9. Flow Control a. Flow control is not required for the project as there will be no increase in impervious surface coverage beyond the existing approved system’s basis of design. 10. Control Pollutants a. BMPs will be implemented to prevent or treat contamination of stormwater runoff by pH modifying sources. In addition, all waste materials from the site will be removed in a manner that does not cause contamination of water. 17 11. Protect Existing and Proposed Stormwater facilities and On-Site BMPs a. Inlet protection BMPs will be implemented on the site for existing and proposed catch basins affected by construction. 12. Maintain Protective BMPs a. BMPs listed in the SWPPP shall be maintained as needed through the project. As portions of the project get completed, portions of the established BMPs shall be adjusted to other areas of the project site until their completion. 13. Manage the Project a. Proposed erosion and sediment control measures will be implemented throughout construction. ESC PLAN ANALYSIS AND DESIGN (PART A) 1. The Standard Requirements above indicate the overall ESC Plan approach and justify these methods based on circumstances specific to the Sounders field project. 2. The proposed Bioscape area (before installation) or a substitute temporary series of settling tanks such as Rain for Rent systems, will be provided to manage runoff during construction. 3. The project site is currently primarily flat with partial impervious surface coverage, giving it a low chance of erosion risk. Once construction is complete, site’s grading design will minimize on-site erosion with flat and stable sports fields and perimeter protection. 4. All techniques and products proposed for this project meet standards set in the Erosion and Sediment Control Standards in Appendix D of the City of Renton Stormwater Design Manual. SWPPS PLAN DESIGN (PART B) The CSWPPP will be included with the Final TIR. 18 IX. BOND QUANTITY, FACILITY SUMMARIES, AND DECLARATION OF COVENANT A Bond Quantity Worksheet is included with this report. 19 X. OPERATION AND MAINTENANCE MANUAL STANDARD MAINTENANCE All facilities are to be maintained by SECO Development after a 2-year maintenance warranty. Sections of the 2017 Renton Surface Water Design Manual (RSWDM) under this section outline the Maintenance Requirements for stormwater facilities and on-site BMPs have been included in this section on the following pages for use by the City in the maintenance of the designed facilities. 20 MAINTENANCE STANDARDS FOR PRIVATELY MAINTAINED DRAINAGE FACILITIES AT SOUTHPORT NO. 5 - CATCH BASINS Maintenance Component Defect Conditions When Maintenance is Needed Results Expected When Maintenance is performed General Trash & Debris (Includes Sediment) Trash or debris of more than 1/2 cubic foot which is located immediately in front of the catch basin opening or is blocking capacity of the basin by more than 10% No Trash or debris located immediately in front of catch basin opening. Trash or debris (in the basin) that exceeds 1/3 the depth from the bottom of basin to invert the lowest pipe into or out of the basin. No trash or debris in the catch basin. Trash or debris in any inlet or outlet pipe blocking more than 1/3 of its height. Inlet and outlet pipes free of trash or debris. Dead animals or vegetation that could generate odors that could cause complaints or dangerous gases (e.g., methane). No dead animals or vegetation present within the catch basin. Deposits of garbage exceeding 1 cubic foot in volume No condition present which would attract or support the breeding of insects or rodents. Structure Damage to Frame and/or Top Slab Corner of frame extends more than 3/4 inch past curb face into the street (If applicable). Frame is even with curb. Top slab has holes larger than 2 square inches or cracks wider than 1/4 inch (intent is to make sure all material is running into basin). Top slab is free of holes and cracks. Frame not sitting flush on top slab, i.e., separation of more than 3/4 inch of the frame from the top slab. Frame is sitting flush on top slab. 21 Maintenance Components Defect Condition When Maintenance is Needed Results Expected When Maintenance is Performed. Cracks in Basin Walls/ Bottom Cracks wider than 1/2 inch and longer than 3 feet, any evidence of soil particles entering catch basin through cracks, or maintenance person judges that structure is unsound. Basin replaced or repaired to design standards. Cracks wider than 1/2 inch and longer than 1 foot at the joint of any inlet/ outlet pipe or any evidence of soil particles entering catch basin through cracks. No cracks more than 1/4 inch wide at the joint of inlet/outlet pipe. Sediment/ Misalignment Basin has settled more than 1 inch or has rotated more than 2 inches out of alignment. Basin replaced or repaired to design standards. Fire Hazard Presence of chemicals such as natural gas, oil and gasoline. No flammable chemicals present. Vegetation Vegetation growing across and blocking more than 10% of the basin opening. No vegetation blocking opening to basin. Vegetation growing in inlet/outlet pipe joints that is more than six inches tall and less than six inches apart. No vegetation or root growth present. Pollution Nonflammable chemicals of more than 1/2 cubic foot per three feet of basin length. No pollution present other than surface film. Catch Basin Cover Cover Not in Place Cover is missing or only partially in place. Any open catch basin requires maintenance. Catch basin cover is closed Locking Mechanism Not Working Mechanism cannot be opened by on maintenance person with proper tools. Bolts into frame have less than 1/2 inch of thread. Mechanism opens with proper tools. Cover Difficult to Remove One maintenance person cannot remove lid after applying 80 lbs. of lift; intent is keep cover from sealing off access to maintenance. Cover can be removed by one maintenance person. Ladder Ladder Rungs Unsafe Ladder is unsafe due to missing rungs, misalignment, rust, cracks, or sharp edges. Ladder meets design standards and allows maintenance person safe access. 22 Metal Grates (If Applicable) Grate with opening wider than 7/8 inch. Grate opening meets design standards. Trash and Debris Trash and debris that is blocking more than 20% of grate surface. Grate free of trash and debris. Damaged or Missing. Grate missing or broken member(s) of the grate. Grate is in place and meets design standards. 23 NO. 9 - FENCING Maintenance Components Defect Conditions When Maintenance is Needed Results Expected When Maintenance is Performed General Missing or Broken Parts Any defect in the fence that permits easy entry to a facility. Parts in place to provide adequate security. Erosion Erosion more than 4 inches high and 12-18 inches wide permitting an opening under a fence. No opening under the fence that exceeds 4 inches in height. Wire Fences Damaged Parts Post out of plumb more than 6 inches. Post plumb to within 1- 1/2 inches. Top rails bent more than 6 inches. Top rail free of bends greater than 1 inch. Any part of fence (including post, top rails) more than 1 foot out of design alignment. Fence is aligned and meets design standards. Missing or loose tension wire. Tension wire in place and holding fabric. Extension arm missing, broken, or bent out of shape more than 1 1/2 inches. Extension arm in place with no bends larger than 3/4 inch. Deteriorated Paint or Protective Coating Part or parts that have a rusting or scaling condition that has affected structural adequacy. Structurally adequate posts or parts with a uniform protective coating. 24 NO. 6 - CONVEYANCE SYSTEMS (PIPES & DITCHES) Maintenance Component Defect Conditions When Maintenance is Needed Results Expected When Maintenance is Performed Pipes Sediment & Debris Accumulated sediment that exceeds 20% of the diameter of the pipe. Pipe cleaned of all sediment and debris. Vegetation Vegetation that reduces free movement of water through pipes. All vegetation removed so water flows freely through pipes. Damaged Protective coating is damaged; rust is causing more than 50% deterioration to any part of pipe. Pipe repaired or replaced. Any dent that decreases the cross section area of pipe by more than 20%. Pipe repaired or replaced. Open Ditches Trash & Debris Trash and debris exceeds 1 cubic foot per 1,000 square feet of ditch and slopes. Trash and debris cleared from ditches. Sediment Accumulated sediment that exceeds 20 % of the design depth. Ditch cleaned/ flushed of all sediment and debris so that it matches design. Vegetation Vegetation that reduces free movement of water through ditches. Water flows freely through ditches. Erosion Damage to Slopes See “Rain gardens” Standard No. 1 See “Rain gardens” Standard No. 1 Rock Lining Out of Place or Missing (If Applicable). Maintenance person can see native soil beneath the rock lining. Replace rocks to design standards. Catch Basins See “Catch Basins: Standard No. 4 See “Catch Basins” Standard No. 4 Debris Barriers (e.g., Trash Rack) See “Debris Barriers” Standard No.5 See “Debris Barriers” Standard No. 5 25 NO. 11 - GROUNDS (LANDSCAPING) Maintenance Component Defect Conditions When Maintenance is Needed Results Expected When Maintenance is Performed General Weeds (Nonpoisonous) Weeds growing in more than 20% of the landscaped area (trees and shrubs only). Weeds present in less than 5% of the landscaped area. Safety Hazard Any presence of poison ivy or other poisonous vegetation. No poisonous vegetation present in landscaped area. Trash or Litter Paper, cans, bottles, totaling more than 1 cubic foot within a landscaped area (trees and shrubs only) of 1,000 square feet. Area clear of litter. Trees and Shrubs Damaged Limbs or parts of trees or shrubs that are split or broken which affect more than 25% of the total foliage of the tree or shrub. Trees and shrubs with less than 5% of total foliage with split or broken limbs. Trees or shrubs that have been blown down or knocked over. Tree or shrub in place free of injury. Trees or shrubs which are not adequately supported or are leaning over, causing exposure of the roots. Tree or shrub in place and adequately supported; remove any dead or diseased trees. 26 NO. 12 - ACCESS ROADS/ EASEMENTS Maintenance Component Defect Condition When Maintenance is Needed Results Expected When Maintenance is Performed General Trash and Debris Trash and debris exceeds 1 cubic foot per 1,000 square feet i.e., trash and debris would fill up one standards size garbage can. Roadway free of debris which could damage tires. Blocked Roadway Debris which could damage vehicle tires (glass or metal). Roadway free of debris which could damage tires. Any obstruction which reduces clearance above road surface to less than 14 feet. Roadway overhead clear to 14 feet high. Any obstruction restricting the access to a 10 to 12 foot width for a distance of more than 12 feet or any point restricting access to less than a 10 foot width. Obstruction removed to allow at least a 12 foot access. Road Surface Settlement, Potholes, Mush Spots, Ruts When any surface defect exceeds 6 inches in depth and 6 square feet in area. In general, any surface defect which hinders or prevents maintenance access. Road surface uniformly smooth with no evidence of settlement, potholes, mush spots, or ruts. Vegetation in Road Surface Weeds growing in the road surface that are more than 6 inches tall and less than 6 inches tall and less than 6 inches apart within a 400-square foot area. Road surface free of weeds taller than 2 inches. 27 NO. 12- WATER QUALITY FACILITIES A.) Cartridge Filter Catch Basin Maintenance Component Defect or Problem Condition When Maintenance is Needed Recommended Maintenance to Correct Problem Facility – General Requirements Life cycle Once per year, except mulch and trash removal twice per year. Facility is re-inspected and any needed maintenance performed Contaminants and pollution Any evidence of contaminants or pollution such as oil, gasoline, concrete slurries, or paint Materials removed and disposed of according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Inlet Excessive sediment or trash accumulation Accumulated sediments or trash impair free flow of water into system inlet should be free of obstructions allowing free distributed flow of water into system Mulch Cover Trash and floatable debris accumulation Excessive trash and/or debris accumulation Minimal trash or other debris on mulch cover. Mulch cover raked level. Proprietary Filter Media/ Vegetation Substrate “Ponding” of water on mulch cover after mulch cover has been maintained Excessive fine sediment passes the mulch cover and clogs the filter media/vegetative substrate Stormwater should drain freely and evenly through mulch cover. Replace substrate and vegetation when needed Plants not growing or in poor condition Soil/mulch too wet, evidence of spill, incorrect plant selection, pest infestation, and/or vandalism to plants Plants should be healthy and pest free Damaged Pipes Any part of the pipes that are crushed, damaged due to corrosion and/ or settlement. Pipe repaired and/ or replaced. Access Cover Damaged/ Not Working Cover cannot be opened, one person cannot open the cover, corrosion/ deformation of cover. Cover repaired to proper working specifications or replaced. Vault Structure Includes Cracks in Wall, Bottom, Damage to Frame and/ or Top Slab Cracks wider than 1/2-inch and any evidence of soil particles entering the structure through the cracks, or maintenance/ inspection personnel determines that the vault is not structurally sound. Vault replaced or repaired to design specifications. Structure Structure has visible cracks Cracks wider than ½ inch Evidence of soil particles entering the structure through the cracks Structure is sealed and structurally sound Appendix A – Figures Figure 1 Technical Information Report Worksheet Figure 2 Parcel Reports Figure 3 Vicinity Map Figure 4A USGS Soil Map Figure 4B Wetlands and Water Classification Figure 4C Aquifer Protection Figure 4D Erosion Hazard Figure 4E Flood Hazard Figure 5A Existing Conditions Figure 5B Historical Conditions Figure 6 Drainage Basin Map Figure 7 Proposed Conditions Figure 8 Flow Control Application Map Figure 9 FEMA FIRM Map Figure 10 Downstream Analysis Figure 11 Drainage Complaints Figure 12 Bioscape Sizing King County Department of Development and Environmental Services TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Part 1 PROJECT OWNER AND PROJECT ENGINEER Part 2 PROJECT LOCATION AND DESCRIPTION Project Owner: Seattle Sounders FC Project Name: Seattle Sounders FC Headquarters & Training Center Address: 159 S. Jackson Street Suite 200, Seattle, WA 98104 Location Phone: Township: 23N Range: 4E Section: 24 Project Engineer: Tim Brockway, P.E., LEED AP BD+C Company: Coughlin Porter Lundeen Address/Phone: 801 Second Avenue, Ste 900 Seattle, WA 98104 (206) 343-0460 Part 3 TYPE OF PERMIT APPLICATION Part 4 OTHER REVIEWS AND PERMITS Subdivison Short Subdivision Grading Commercial Other: DFW HPA Shoreline Management COE 404 Rockery DOE Dam Safety Structural Vaults FEMA Floodplain Other N/A COE Wetlands Part 5 SITE COMMUNITY AND DRAINAGE BASIN Community: Drainage Basin: Black River Drainage Basin Part 6 SITE CHARACTERISTICS River Stream Critical Stream Reach Depressions/Swales Lake Floodplain Limited Wetlands Seeps/Springs High Groundwater Table Groundwater Recharge Steep Slopes Other Part 7 SOILS Soil Type Slopes Erosion Potential Erosive Velcoties Ur <15% Low Additional Sheets Attached Part 8 DEVELOPMENT LIMITATIONS REFERENCE LIMITATION/SITE CONSTRAINT Ch.4 – Downstream Analysis None Additional Sheets Attached Part 9 ESC REQUIREMENTS MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION MINIMUM ESC REQUIREMENTS AFTER CONSTRUCTION Sedimentation Facilities Stabilized Construction Entrance Perimeter Runoff Control Clearing and Graing Restrictions Cover Practices Construction Sequence Other Stabilize Exposed Surface Remove and Restore Temporary ESC Facilities Clean and Remove All Silt and Debris Ensure Operation of Permanent Facilities Flag Limits of SAO and open space preservation areas Other Part 10 SURFACE WATER SYSTEM Grass Lined Channel Pipe System Open Channel Dry Pond Wet Pond Tank Vault Energy Dissapator Wetland Stream Infiltration Depression Flow Dispersal Waiver Regional Detention Method of Analysis Compensation/Mitigati on of Eliminated Site Storage Brief Description of System Operation The project proposes to construct a drainage system with a new network of underground pipes, catch basins, curbs and gutter, to collect surface water runoff throughout the site and direct it to a combined detention wetpond located on Boeing's Tract B for both water quality treatment and detention. Facility Related Site Limitations Reference Facility Limitation N/A Part 11 STRUCTURAL ANALYSIS Part 12 EASEMENTS/TRACTS Cast in Place Vault Retaining Wall Rockery > 4’ High Structural on Steep Slope Other N/A Drainage Easement Access Easement Native Growth Protection Easement Tract Other Part 13 SIGNATURE OF PROFESSIONAL ENGINEER I or a civil engineer under my supervision my supervision have visited the site. Actual site conditions as observed were incorporated into this worksheet and the attachments. To the best of my knowledge the information provided here is accurate. Signed/Date 8/1/22, 1:18 PM King County Districts and Development Conditions for parcel number 0886700110 https://www5.kingcounty.gov/kcgisreports/dd_report_print.aspx?PIN=0886700110&aerial=false 1/1 King County Districts and Development Conditions for parcel 0886700110 Parcel number 0886700110 Address Jurisdiction Renton Zipcode 98057 Kroll Map page 335 Thomas Guide page 655 Drainage Basin Black River Watershed Duwamish - Green River WRIA Duwamish-Green (9) PLSS SE - 24 - 23 - 4 Latitude 47.4621 Longitude -122.23588 King County Electoral districts Voting district RNT 11-2582 King County Council district District 5, Dave Upthegrove (206) 477-1005 Congressional district 9 Legislative district 11 School district Renton #403 Seattle school board district does not apply (not in Seattle) District Court electoral district Southeast Regional fire authority district Renton Regional Fire Authority Fire district does not apply Water district does not apply Sewer district does not apply Water & Sewer district does not apply Parks & Recreation district does not apply Hospital district Public Hospital District No. 1 Rural library district Rural King County Library System Tribal Lands?No King County planning and critical areas designations* King County zoning NA, check with jurisdiction Development conditions None Comprehensive Plan Land Use Designation does not apply Urban Growth Area Urban Community Service Area does not apply Community Planning Area Green River Valley Coal mine hazards?Check with jurisdiction Erosion hazards?Check with jurisdiction Landslide hazards?Check with jurisdiction Seismic hazards?Check with jurisdiction Urban Unincorporated Status does not apply Rural town?No Water service planning area City of Renton Transportation Concurrency Management does not apply Forest Production district?No Agricultural Production district?No Snoqualmie Valley watershed improvement district? No Critical aquifer recharge area?None mapped Wetlands at this parcel?Check with jurisdiction Within the Tacoma Smelter Plume?20 ppm to 40 ppm Estimated Arsenic Concentration in Soil Shoreline management designation (% of parcel) None mapped This report was generated on 8/1/2022 1:17:00 PM Contact us at giscenter@kingcounty.gov. © 2022 King County Map Sat 8/1/22, 1:20 PM King County Districts and Development Conditions for parcel number 0886700120 https://www5.kingcounty.gov/kcgisreports/dd_report_print.aspx?PIN=0886700120&aerial=true 1/1 King County Districts and Development Conditions for parcel 0886700120 Parcel number 0886700120 Address Jurisdiction Renton Zipcode 98057 Kroll Map page 335 Thomas Guide page 655 Drainage Basin Black River Watershed Duwamish - Green River WRIA Duwamish-Green (9) PLSS SE - 24 - 23 - 4 Latitude 47.46072 Longitude -122.23673 King County Electoral districts Voting district RNT 11-2582 King County Council district District 5, Dave Upthegrove (206) 477-1005 Congressional district 9 Legislative district 11 School district Renton #403 Seattle school board district does not apply (not in Seattle) District Court electoral district Southeast Regional fire authority district Renton Regional Fire Authority Fire district does not apply Water district does not apply Sewer district does not apply Water & Sewer district does not apply Parks & Recreation district does not apply Hospital district Public Hospital District No. 1 Rural library district Rural King County Library System Tribal Lands?No King County planning and critical areas designations* King County zoning NA, check with jurisdiction Development conditions None Comprehensive Plan Land Use Designation does not apply Urban Growth Area Urban Community Service Area does not apply Community Planning Area Green River Valley Coal mine hazards?Check with jurisdiction Erosion hazards?Check with jurisdiction Landslide hazards?Check with jurisdiction Seismic hazards?Check with jurisdiction Urban Unincorporated Status does not apply Rural town?No Water service planning area City of Renton Transportation Concurrency Management does not apply Forest Production district?No Agricultural Production district?No Snoqualmie Valley watershed improvement district? No Critical aquifer recharge area?None mapped Wetlands at this parcel?Check with jurisdiction Within the Tacoma Smelter Plume?20 ppm to 40 ppm Estimated Arsenic Concentration in Soil Shoreline management designation (% of parcel) None mapped This report was generated on 8/1/2022 1:20:00 PM Contact us at giscenter@kingcounty.gov. © 2022 King County Map Sat 8/1/22, 1:20 PM King County Districts and Development Conditions for parcel number 0886700130 https://www5.kingcounty.gov/kcgisreports/dd_report_print.aspx?PIN=0886700130&aerial=true 1/1 King County Districts and Development Conditions for parcel 0886700130 Parcel number 0886700130 Address Jurisdiction Renton Zipcode 98057 Kroll Map page 335 Thomas Guide page 655 Drainage Basin Black River Watershed Duwamish - Green River WRIA Duwamish-Green (9) PLSS SE - 24 - 23 - 4 Latitude 47.46078 Longitude -122.23548 King County Electoral districts Voting district RNT 11-2582 King County Council district District 5, Dave Upthegrove (206) 477-1005 Congressional district 9 Legislative district 11 School district Renton #403 Seattle school board district does not apply (not in Seattle) District Court electoral district Southeast Regional fire authority district Renton Regional Fire Authority Fire district does not apply Water district does not apply Sewer district does not apply Water & Sewer district does not apply Parks & Recreation district does not apply Hospital district Public Hospital District No. 1 Rural library district Rural King County Library System Tribal Lands?No King County planning and critical areas designations* King County zoning NA, check with jurisdiction Development conditions None Comprehensive Plan Land Use Designation does not apply Urban Growth Area Urban Community Service Area does not apply Community Planning Area Green River Valley Coal mine hazards?Check with jurisdiction Erosion hazards?Check with jurisdiction Landslide hazards?Check with jurisdiction Seismic hazards?Check with jurisdiction Urban Unincorporated Status does not apply Rural town?No Water service planning area City of Renton Transportation Concurrency Management does not apply Forest Production district?No Agricultural Production district?No Snoqualmie Valley watershed improvement district? No Critical aquifer recharge area?None mapped Wetlands at this parcel?Check with jurisdiction Within the Tacoma Smelter Plume?20 ppm to 40 ppm Estimated Arsenic Concentration in Soil Shoreline management designation (% of parcel) None mapped This report was generated on 8/1/2022 1:20:35 PM Contact us at giscenter@kingcounty.gov. © 2022 King County Map Sat 8/1/22, 1:21 PM King County Districts and Development Conditions for parcel number 0886700210 https://www5.kingcounty.gov/kcgisreports/dd_report_print.aspx?PIN=0886700210&aerial=true 1/1 King County Districts and Development Conditions for parcel 0886700210 Parcel number 0886700210 Address Jurisdiction Renton Zipcode 98057 Kroll Map page 335 Thomas Guide page 656 and 655 Drainage Basin Black River Watershed Duwamish - Green River WRIA Duwamish-Green (9) PLSS SE - 24 - 23 - 4 Latitude 47.4608 Longitude -122.234 King County Electoral districts Voting district RNT 11-2582 King County Council district District 5, Dave Upthegrove (206) 477-1005 Congressional district 9 Legislative district 11 School district Renton #403 Seattle school board district does not apply (not in Seattle) District Court electoral district Southeast Regional fire authority district Renton Regional Fire Authority Fire district does not apply Water district does not apply Sewer district does not apply Water & Sewer district does not apply Parks & Recreation district does not apply Hospital district Public Hospital District No. 1 Rural library district Rural King County Library System Tribal Lands?No King County planning and critical areas designations* King County zoning NA, check with jurisdiction Development conditions None Comprehensive Plan Land Use Designation does not apply Urban Growth Area Urban Community Service Area does not apply Community Planning Area Green River Valley Coal mine hazards?Check with jurisdiction Erosion hazards?Check with jurisdiction Landslide hazards?Check with jurisdiction Seismic hazards?Check with jurisdiction Urban Unincorporated Status does not apply Rural town?No Water service planning area City of Renton Transportation Concurrency Management does not apply Forest Production district?No Agricultural Production district?No Snoqualmie Valley watershed improvement district? No Critical aquifer recharge area?None mapped Wetlands at this parcel?Check with jurisdiction Within the Tacoma Smelter Plume?20 ppm to 40 ppm Estimated Arsenic Concentration in Soil Shoreline management designation (% of parcel) None mapped This report was generated on 8/1/2022 1:21:13 PM Contact us at giscenter@kingcounty.gov. © 2022 King County Map Sat 8/1/22, 1:21 PM King County Districts and Development Conditions for parcel number 0886700220 https://www5.kingcounty.gov/kcgisreports/dd_report_print.aspx?PIN=0886700220&aerial=true 1/1 King County Districts and Development Conditions for parcel 0886700220 Parcel number 0886700220 Address 1901 OAKESDALE AVE SW Jurisdiction Renton Zipcode 98057 Kroll Map page 335 Thomas Guide page 656 and 655 Drainage Basin Black River Watershed Duwamish - Green River WRIA Duwamish-Green (9) PLSS SE - 24 - 23 - 4 Latitude 47.46217 Longitude -122.23408 King County Electoral districts Voting district RNT 11-2582 King County Council district District 5, Dave Upthegrove (206) 477-1005 Congressional district 9 Legislative district 11 School district Renton #403 Seattle school board district does not apply (not in Seattle) District Court electoral district Southeast Regional fire authority district Renton Regional Fire Authority Fire district does not apply Water district does not apply Sewer district does not apply Water & Sewer district does not apply Parks & Recreation district does not apply Hospital district Public Hospital District No. 1 Rural library district Rural King County Library System Tribal Lands?No King County planning and critical areas designations* King County zoning NA, check with jurisdiction Development conditions None Comprehensive Plan Land Use Designation does not apply Urban Growth Area Urban Community Service Area does not apply Community Planning Area Green River Valley Coal mine hazards?Check with jurisdiction Erosion hazards?Check with jurisdiction Landslide hazards?Check with jurisdiction Seismic hazards?Check with jurisdiction Urban Unincorporated Status does not apply Rural town?No Water service planning area City of Renton Transportation Concurrency Management does not apply Forest Production district?No Agricultural Production district?No Snoqualmie Valley watershed improvement district? No Critical aquifer recharge area?None mapped Wetlands at this parcel?Check with jurisdiction Within the Tacoma Smelter Plume?20 ppm to 40 ppm Estimated Arsenic Concentration in Soil Shoreline management designation (% of parcel) None mapped This report was generated on 8/1/2022 1:21:46 PM Contact us at giscenter@kingcounty.gov. © 2022 King County Map Sat 2014 BeD BeD BeC AkF AmC KpD AmB AmB AgC AgC AgC KpB AgC AkF BeD AgC KpD AgCKpBKpBAgD EvC Bh BeC AgB KpB AgD UrEwC EvB AmC Or AgC BeC BeD BeD BeC AgC KpD BeC KpCKpB Sk AmC BeC UrBeCUr AgD KpB Ur AgC EvC KpC AgC OvD SkAgB AgB AgD EvC W OvD OvD No AgC AgD EvC RdC Sk KpB No AgC RdEAgCEvC BeC InC Bh BeD RdC AkF AgD BeD BhSm AgC RdE AgC AgDEvC Sh Sh PITS PyAgC AgD AgC EvC PITS EvB BeC OvC PITS EvB AgC InA AgD AgD Ur Bh AgC RdCEvCEvD AmB AmC AgD BeD EvC AkF AgD AgC Sm AgD AmC EvB AgD Sm AgC EwC PITSPu Bh Bh AgC KpD Tu AgC EvC EvC Ur RdC KpB RdCRdE W AgD AgD No AgB AgC No An AkF EvB InD AgD EvD InC SkBeC PITS Ur WBeC W BeD An EvC BeC Pc EvC 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LakeYoungs LakeWashington B l ack Ri verGr e enR iverCeda rRiverDuwamish Wat erwa yUV167 UV900 UV515 UV169 UV900 UV167BN IncBN IncBBNNIInnccSSEE RReennttoonnIIss ss aa qq uuaahhRRdd S 2nd StS 2nd St RReennttoonnMMaapplleeVVaalllleeyyRRdd MMaapplleeVVaalllleeyyHHwwyy 110088tthhAAvveeSSEEMMaaiinnAAvveeSSMMaa rrttiinn LL KKiinnggJJrrWWaayySS SSWW SSuunnsseett BBllvvdd RRaaiinnii eerrAAvveeNNNE 3rd StNE 3rd St II--440055FFWWYYSW 43rd StSW 43rd St SSEE CCaarrrrRR dd NE 4th StNE 4th St SS GG rr aa dd yy WW aa yy SSEE RReennttoonn MMaappllee VVaalllleeyy RRddLLooggaannAAvveeNN SR 515SR 515PPaarrkkAAvveeNNBBeennssoonnDDrrSSSSuunnsseettBBllvvddNN OOaakkeessddaalleeAAvveeSSWWSSuunnsseettBBllvvddNN EE DDuuvvaallllAAvveeNNEESR 167SR 16711 4400tthh WWaayySSEEWWaatteerrss AA vv ee SS NNEE 2277tthh SStt HH oo uu sseerrWWaayyNN115566tthhAAvveeSSEEUUnniioonnAAvveeNNEE111166tthhAAvveeSSEESW 7th StSW 7th St PPuuggeettDDrrSSEERR ee nnttoonnAAvvee SS GGaarrddeennAAvveeNNSSWW 2277tthh SStt BBeennssoonnRRddSSWWiilllliiaammssAAvveeSSMMoonnrrooeeAAvveeNNEEII nntt eerr uurr bbaannAAvveeSS HHooqquuiiaammAAvveeNNEE8844tthhAAvveeSSSSEEPPeettrroovviittsskkyyRRdd SSoouutthhcceenn tt ee rr BB llvvddEEVVaalllleeyyHHwwyySShhaattttuucckkAAvveeSSRR aaiinniieerrAAvvee SS TTaallbboottRRddSSRRee nn tt oo nn AA vv ee SS116644tthhAAvveeSSEESE 208th StSE 208th St SSWWLLaannggssttoonnRRdd SE 72nd StSE 72nd St SE 128th StSE 128th St 112244tthhAAvveeSSEES 128th StS 128th St NNeewwccaassttllee WWaayy SS 221122tthh SStt SS 118800tthh SStt CCooaallCCrr eeeekkPPkkwwyySSEESW 41st StSW 41st St N 30th StN 30th St Ta y l o r P l NWTa y l o r P l NW114400tthhAAvveeSSEE112288tthhAAvveeSSEE111166tthhAAvveeSSEE6688tthhAAvveeSSSSEE 116688tthh SStt NE 12th StNE 12th St BB eeaaccoo nn AAvv ee SSFFoorreessttDDrr SSEE UUnniioonnAAvveeSSEESE 164th StSE 164th St NNiilleeAAvveeNNEE114488tthhAAvveeSSEESSEE MMaayy VVaalllleeyy RRdd SS EE 22 00 44 tthh WW aayySW 34th StSW 34th St SS EE JJ oo nn ee ss RR dd SE 144th StSE 144th StEEMMeerrcceerrWWaayy 114488tthhAAvveeSSEEWWMMeerrcceerrWWaayy115544tthhPPllSSEEEEddmmoonnddssAAvveeNNEEAAbbeerrddeeeennAAvveeNNEEWWeessttVVaalllleeyyHHwwyyEast Valley RdEast Valley Rd,§-405 ,§-405 Reference 15-C Renton City Limits Potential Annexation Area Groundwater Protection Area Boundary Aquifer Protection Area Zone 1 Aquifer Protection Area Zone 1 Modified Soil Type AgB AgC AgD AkF AmB AmC An BeC BeD Bh Br EvB EvC EvD EwC InA InC InD KpB KpC KpD Ma Ng Nk No Or Os OvC OvD PITS Pc Pk Pu Py RdC RdE Re Rh Sh Sk Sm So Tu Ur W Wo Date: 01/09/2014 0 1 2MilesµSoil Survey BN Inc4th Rainier Lind3rd Cedar River 140thPetrovitskyI-405TalbotParkG r a d y I -5SR 167108th148thInterurban68thBe n s o n84thLogan 9 5 t h 144thDuvall78th 16th WellsAndoverOakesdale27th SR 515Coal Cr eek128th 72nd43rd MercerWest Valley8th May Valley C a rr116th 79th 76thPuget6th 164thRenton Issaquah 134th KirklandFairwood Renton Maple ValleyMonroe Southcenter132nd 8 0 t h 204th 41st East Valley34th 8 9 thLangston 5th 200thUnionWilliamsBeacon 154thHoquiamMaple Valley57th9th 30th Forest JonesSeward ParkNewcastle Aberdeen184thBangor 88th 169th SR 900194th CornellHarringtonHardieValleyPelly56th 58th183rd121st 161st62nd168th149th64th Parkside96th63rdGarden186th Strander 87th19th Mill Sunset 176th59thPedestrian156th1 2 t h 21st 70th 175thLincoln125th135th Leo 61st31st 155th92nd Dixon 118th24th81st Renton133rd 2nd 166th15th Lakemont160th 1 0 th 1 4 t h Avon Island CrestTukwilaMa u l e Newcastle Golf Club 171stEdmonds39th 1 4 1 s tMartin L King Jr Taft 29th Blaine1 9 2 n d 180th FieldTobin Lakeridge Sidney 114th 208th 177th1 9 6 th174th106th53rd38th93rd32nd 83rd L a k e Y o u n g s T r ailShattuck 142nd 82nd 136thCrestwoodAccess112th Licorice 143rd23rd S o o s C re e k W oodsideBronsonHolly 131stNorfolk 138th 104th52ndIndex 159th55thPer i met er 105th1 9 9 t h 178th 6 5 t h 66th 71st Airport BurnettRoyal Hills123rd126thOlympiaM onster 75th Hous e rWoodley 190thIsland 7th 28th 167th35th Rosario8 5 t h 1st 33rd 91st IndustryFir Macadam60thS u n n y c r e s tAnacortesLynnwoodMinkler Rustic103rd98thLake1 7 3 r dA c c e s s R d w y LyonsFrager181st22nd 130th 145thRi ver si de158th111thSperryT a ylor 102n d 40th Pasco151st 198th 179thDavisBeacon Coal Mine 2 01 s t Baker Ryan Nile110t hG re e n R iv e r69th124thOthello MapleAubur n18 8th 170th137thWabash Avalon 129thAWest Lake Desire Pierce54th Klickitat 193rd Lake Youngs Service 73rd R ailro a d 13th1 9 5 t hMorris1 3 9th 109th3 6 t h 122ndPrivateBoeing117t h120t h157th47thTodd 25th Myrtle Ferndale MainFletcher Juniper Luther 113th20th 209th163rd77thLake WashingtonPowellCedar1 4 6 th 150th 182nd172ndThomasHillside Pilgrim High17thWa t e r s 99thHazelwood42nd OlympicEast Lake DesireShel t onKenyon 206th Triland 1 0 0 t h VashonStevens97th187th OrcasOakOld Petrovitsky 119th 147thRolling HillsLake YoungsRussell6th pl 11th Hazel Windsor45th 165thWallace 202nd 48th 152nd37th JeffersonPine26th 127th Victoria 1 1 5th67th 191st Camas 185th 94thLaurel GlenwoodJericho107thRose Eden 90th Costco WillowBrighton NachesCapri203rd 18th Upland ChristensenSunwoodCedar RidgeHouser Way BypassM o ntere y Kent BoeingRipleyRenton TC86th Eagle Ridge44th Ilwaco212thKennewick50thSeneca C ounty R oad 66 Meadow GrantLongacres153rd Lim a Arrowsmith DaytonQuinceyMidland Ge mMountain View46th 74th 101st Segale Park B189th WhitmanPrentice 162ndF o u n ta in Center Point207th Warsaw Treck ElmaQueenPark Access S h o re Renton Dist CtChelanLewis 855th Oaksdale197th Gazelle Augusta 136 Talbot CrestKitsapUn n a medBoei ng Rent onNel sonGe n e Co u l o n Pa r k 4 9 th Ridgecrest V i c t o r Park ViewRedmondMosesTacomaHolyokeRoxbury Smit her sNels BerglundEvergreen L a k e V i e w Raymond Rive rvi ew P ar k BremertonGrahamSouthcenter Mall W hitw orth Eastwood Cooper Berkshire AptWestwood Duncan Kentridge HS Corporate 95th 140th 120th 150th1st 119th3rd 139th 7 7 th 7 1 st 184th 1 8 th 144th Lincoln1 8 1 s t118th145thVashonAccess143rd139th65th 1 8 2 n d 114th61st116th 148th64th11th Ki rkland10th 147thHoquiam70th105th121st I-584th61stAccess142ndPrivate 172nd137th173rd140th 134th112th 166t h124t h 8th Morris86thPri vateCamas124th 74th 105th74th 142nd 192nd 167th 146th126th 155th 1 6 2 n d AccessWilliams 184th3rd 8 th 178thMonterey81st 208th 74th 184th182nd 166thDayton 193rd127th 177thCamas129th 155th59th131st 130th 54th 88th 4th 69th 18th 1st Private 152nd170th 5th 76th Access102nd70t h77th92nd 126th 161st105th128th175th 187th 112thAccess1 1 5 t h 102nd 162nd57th57th9th 170th79thQueen6th83rd 193rd 1 5 4 t h PrivateRedmond35th 116th169th103rd154thMeadow23rd130t h181stPierce133rd121st 105th144th86th 10th 2 2 n d 6 7 th 141st140th71st3rd 1 7 3 r d 116th 199th 113th 184th199th 137th71stAnacortes 104thHarrington1st132nd2nd 151st139thP riv ate 81st58th20 6th Glenwood80th114th147th177th Burnett117thPedestrian Private Minkler 104t h140th7th 110th2nd 1 3 5th 186th 94thPrivate165th Access73rd61st Shattuck1 4 3 r d135th 1 8 0 th 101st68th152nd 175th147thP e d e s tr ia n 196th Access4th WellsMain9th 100th 98thP rivate138th 168th 4th 124th1 7 1 s t106th2 3 rd 10th 77th1 4 1 st 37th 65th 170th Private146th7th 138th209th 128th119th4th 113th184th I-5 173rd 202nd PrivatePrivate75th 127t hGreen River 123rd 161st143rd 128th18th 3rd72nd Pasco83rd64th1 5 7thPrivateBurnett130th 136th 1st Private160th165th130th92nd 165th168th 121stLake Youngs Trail151st 165thPrivate 179th135th118th145th 198thI-5164th121stPrivate175th 3rd 8th Pelly78thHouser26th 178thI ndex Jones150thPrivate 117th 141st70th185th21st 106th 136th 113th111th149th 169th120th84th176th 191st 5th 158thPrivate 169th126th 143rd 109th170th134th 5th120th I-5 192ndBlaine 3rd200th 160th200th 13 4 t h 78th69th5thLind12th 202nd 206th Private 62nd17th92nd 124th132ndRaymond151st103rd 66th 146th70th 1 8 4 t h 156th1st 1 5 0 th 87th 3rd 177th102ndAccess Pri v at e157th Private 8th 32nd Green River 171st181st 125th174th57th141stP riv a teDayton112th 1 89 th 1 3 3rd 134th 175th 21st 71st Private72nd160th3rd 119th 77th27th119th 204th 126th 3 rd Access 118th141st 6th 4 t h 23rd 123rdLind190th 4 th Access 87th SR 51583rd1st 198th 164th 7th 7th143rd75th 18thSR 515A cc ess 135th150th130th52nd68thPrivate 6th 119th Cedar6 t h 129thStevens143rd9th 29th 86th Jones99th 202nd 146thJefferson2nd 144th Index1 5 7 th 172nd 2nd 1 20t h78th 160th Private124th 16th180th122nd 70thPrivate 7 6th 185th K e n t B o e i n g Morris5 th 141st 169th161st11 9 t h21st A c c e s s Access3 6 t h 111th4th77th U n n a me d 1 4 3 r d20th 66th149th56th1 9 1 s tPrivate AccessPrivate 43rd 160thPierce156th129th Interurban179th 169th1 7 3rd 1st 1 5 t h 124th67th 156th118t h121stElma71st114th 24th 90th121st131st74th 68th 28th 32nd 154th180th 130th 181st 185th 156thPrivate71st 157th170th 98t hPrivate 142nd204th165th114th 17th Private105th4th 1 3 4t h 182nd 120th Jones126th21st Pedestrian181st188th 185th20thPowell 183rd178th Jericho136th190th Parkside163rdA cce ss 2nd 143rd 16 7th 188th 20th56th 91st 176th 164th172nd174th 136th 171st6 6 t h 11th129t hAberdeenAccess100th172nd 116th 155th190th55th Sunset 64th132nd1 6 6th 135th125th56th184th66th 131st13th Private 152nd204th 149th152nd59th80thAccess122nd124th 204th 184th113th113th 27th67th127th199th 148th 23rd 147th1 52 n d 105th10th 163rd6 t h 27th 2nd 202nd 5th 162ndAccess 4th 72nd 164th 168th83rd 133rd20th 148th138th59th118th4th127th Pedestrian 1 3 9 t h 4th57th 143rd138th190th114th21st 122nd 1 7 0 t h Interurban 8th 173rd 180th Private 66th124th 115th16th19th81st26th Camas65t h1 3 4th 192ndAndover 161st 39th Access 177th65th180th88th Edmonds Private 28th 84th110th106th122nd4th123rd118th Elma27th 168th148thPrivate 160th27th 172nd 120th 1st 7th 85th186th 1 6 th 160thPrivate 126th 18 9t h 116th Maple122nd208th 196th54th 141st165th123rd21st Private 166th62nd 7 6 th 6th 172nd 178th85th67th 6th 187th Access 25th Private103rd196thPrivate 10th A cc e ssHazel174th 140th 27th 31st 124th 146thBenson180th86th Private 158th 184th 128t h133rd194th I ndexLyons6th 168th132nd149th 110t h8 0 t h 148th190th 112th Access Williams178th 6 6 th 126th74th189th 106th66th96th136th164th78th 145th 1 9 6 thPrivate171st 145thAccess 190th 75th143r d78th 127thHigh1 4 4th Private165th 188th 29th 8th80th 174th72nd 2nd 37th56th 111th164th68thPark133rd150th23rd Private 77th 126th 184th 133rd 117th 10th Access 148th184thLake9th 192nd 120thRyan Access 164th132nd 8 5 t h 122nd120th Olympia5th 1 2 5th Smithers36th 2n d ThomasMonterey175th 72nd152ndMill171st 65th 144thLangston 87th200th 117th 131st 160th 67th 5th 37th 6 6 th 131st 1 3 t h Blaine43rd 1 6 7 t h AccessAccess May Valley56th 82ndPrivate 142nd 120th 1st 20th 194th 4th PrivateAccess30th 16th 172nd 137th 7 th 182nd Private145th 190th 92nd85th7 6th 131st 190th 125th7th 199th80th135th 78thHazelwood Davis82nd164th 179th 4th 76th 126thDayton120th 118th1 4 9th 166th154th172nd68t h 69th40th 146t h115th82nd184th116th75th123r d5th 9 1 s t Private3rd AccessIndexLake96th 159th 196th 156th1 3 6 t h 1 5 9thPrivate132nd158th76th32nd 109th8 1 st 117th9 8 t h 180th 25th 160t h2ndMill 128th110th 80th110th 162nd 1 4 2 n d Private56th24th 172nd158th140th 167th A c c e s s 193rd Ch e l a n 203rdAccess 163rd 1st P e destrian 162nd 169th82nd 158thHouser186th 57th 201st 65th 196th 7th Access114t h204th 22nd Access1 0 th Private RentonPark18th57th85th10th84th 23rd55th 158t hShattuck160thGrant5th J ones120th4th 9th 143rd98th113th77th6 th 132nd66th 61st124th201stAccess 132nd A c c e s s Access108thPrivate 166th 184th I- 4 0 5 198th 2 n d 89th158th76th54th81st126th155th 136th64th Access 116th19th 58th160th 76th 160thAccess166th157thTacomaJonesAccess 3rd 108th Mapl e2 1 s t7th 126th167th 6 t h 1 0 t h Private5th 8th 71st 26th Private 194th 144thPrivate 129th Private8 thGar den 20th Access128th62nd82nd 185th 6th 12th 143rd 114th CedarPrivate71st116th62nd3rd 128th59th7th Access A c c e s s Private120th 139th 92nd174thPrivate96th14th Cedar172nd199th56th138th66th 164th170thSunset 130th7th 168th 9th 10th 1 8 2 n d 157th Access 118th 3rd 176th 96th182nd 25th 138thAccess 100th 187th 24th 16th 149th 123rd 1 5 9 t hMay Creek Coal Cre ek Unnamed Ma d s e n C r e e k Springbrook CreekCoal Creek Tributary UnnamedU n n a m e d Coal CreekUnnamedUnnamedUnnamed UnnamedUnnamedUn n a me dUnnamedKing County Kent Tukwila Newcastle Seattle Bellevue King County Mercer Island King County King County SeaTac King County King County King County King County Kent Renton City Limits Potential Annexation Area Basins Black River Duamish Lake Washington East Lake Washington West Lower Cedar River May Creek Soos Creek ´ Surface Water UtilityComprehensive PlanPrinted 10/16/2009 Basin Locations 0 10.5 Miles 144,44824075 Downstream Analysis This map is a user generated static output from an Internet mapping site and is for reference only. Data layers that appear on this map may or may not be accurate, current, or otherwise reliable. THIS MAP IS NOT TO BE USED FOR NAVIGATIONWGS_1984_Web_Mercator_Auxiliary_Sphere Notes 08/01/2022 Legend 16371 0 8185 1637 1 Feet Information Technology - GIS RentonMapSupport@Rentonwa.gov City and County Labels City and County Boundary <all other values> Renton Streets Waterbodies Appendix B – Engineering Calculations Figure 1 Conveyance Map Figure 2-9 Conveyance Profile Plots Figure 10 25-Year Pipe Analysis Table Figure 11 25-Year Site Outfalls Figure 12 25-Year Junction Analysis Table Figure 13 25-Year Sub-Basin Summary Figure 14 WWHM2012 Water Quality Sizing Report. WWHM2012 PROJECT REPORT WWHM2012 Report on Water Quality Sizing Water Quality Sizing is documented on Page 13. LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:02:36 AM Page 2 General Model Information Project Name:LA_Sounders_WWHM_JulyModel_TEN_Rebuild Site Name: Site Address: City: Report Date:8/11/2022 Gage:Seatac Data Start:1948/10/01 Data End:2009/09/30 Timestep:15 Minute Precip Scale:1.000 Version Date:2019/09/13 Version:4.2.17 POC Thresholds Low Flow Threshold for POC1:50 Percent of the 2 Year High Flow Threshold for POC1:50 Year LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:02:36 AM Page 3 Landuse Basin Data Predeveloped Land Use Predeveloped Bypass:No GroundWater:No Pervious Land Use acre A B, Forest, Flat 12.3 Pervious Total 12.3 Impervious Land Use acre DRIVEWAYS FLAT 2.06 SIDEWALKS FLAT 0.45 Impervious Total 2.51 Basin Total 14.81 Element Flows To: Surface Interflow Groundwater LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:02:36 AM Page 4 Mitigated Land Use Basin 1 Bypass:No GroundWater:No Pervious Land Use acre A B, Lawn, Flat 4.39 Pervious Total 4.39 Impervious Land Use acre ROOF TOPS FLAT 0.31 SIDEWALKS FLAT 0.34 PARKING FLAT 9.77 Impervious Total 10.42 Basin Total 14.81 Element Flows To: Surface Interflow Groundwater LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:02:36 AM Page 5 Routing Elements Predeveloped Routing LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:02:36 AM Page 6 Mitigated Routing LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:02:36 AM Page 7 Analysis Results POC 1 + Predeveloped x Mitigated Predeveloped Landuse Totals for POC #1 Total Pervious Area:12.3 Total Impervious Area:2.51 Mitigated Landuse Totals for POC #1 Total Pervious Area:4.39 Total Impervious Area:10.42 Flow Frequency Method:Log Pearson Type III 17B Flow Frequency Return Periods for Predeveloped. POC #1 Return Period Flow(cfs) 2 year 0.959737 5 year 1.211122 10 year 1.381798 25 year 1.603063 50 year 1.77233 100 year 1.945639 Flow Frequency Return Periods for Mitigated. POC #1 Return Period Flow(cfs) 2 year 3.986344 5 year 5.076698 10 year 5.837551 25 year 6.845439 50 year 7.631307 100 year 8.448198 Annual Peaks Annual Peaks for Predeveloped and Mitigated. POC #1 Year Predeveloped Mitigated 1949 1.240 5.166 1950 1.342 5.560 1951 0.780 3.344 1952 0.690 2.862 1953 0.745 3.088 1954 0.778 3.279 1955 0.890 3.663 1956 0.876 3.605 1957 0.985 4.090 1958 0.795 3.300 LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:03 AM Page 8 1959 0.811 3.365 1960 0.796 3.310 1961 0.847 3.494 1962 0.738 3.044 1963 0.815 3.406 1964 0.800 3.316 1965 1.015 4.246 1966 0.678 2.820 1967 1.178 4.853 1968 1.329 5.519 1969 0.933 3.836 1970 0.892 3.702 1971 1.063 4.414 1972 1.098 4.835 1973 0.669 2.760 1974 0.970 4.027 1975 1.118 4.639 1976 0.752 3.129 1977 0.815 3.378 1978 0.999 4.133 1979 1.365 5.657 1980 1.227 5.076 1981 1.010 4.152 1982 1.410 5.854 1983 1.153 4.765 1984 0.733 3.009 1985 1.003 4.142 1986 0.869 3.590 1987 1.336 5.539 1988 0.810 3.364 1989 1.012 4.203 1990 1.706 7.965 1991 1.363 5.887 1992 0.726 2.977 1993 0.626 2.578 1994 0.676 2.807 1995 0.895 3.682 1996 0.947 4.141 1997 0.916 3.910 1998 0.934 3.856 1999 1.900 7.890 2000 0.946 3.933 2001 1.041 4.315 2002 1.220 5.033 2003 0.943 3.937 2004 1.778 7.382 2005 0.819 3.376 2006 0.718 3.079 2007 1.662 7.312 2008 1.339 5.674 2009 1.237 5.135 Ranked Annual Peaks Ranked Annual Peaks for Predeveloped and Mitigated. POC #1 Rank Predeveloped Mitigated 1 1.9004 7.9647 2 1.7781 7.8897 3 1.7057 7.3824 LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:03 AM Page 9 4 1.6619 7.3120 5 1.4102 5.8874 6 1.3654 5.8545 7 1.3626 5.6737 8 1.3422 5.6571 9 1.3387 5.5603 10 1.3359 5.5393 11 1.3292 5.5187 12 1.2398 5.1659 13 1.2371 5.1349 14 1.2275 5.0758 15 1.2197 5.0334 16 1.1776 4.8533 17 1.1530 4.8355 18 1.1178 4.7649 19 1.0978 4.6390 20 1.0633 4.4143 21 1.0412 4.3147 22 1.0146 4.2457 23 1.0124 4.2028 24 1.0096 4.1517 25 1.0030 4.1421 26 0.9990 4.1412 27 0.9850 4.1327 28 0.9700 4.0901 29 0.9472 4.0269 30 0.9459 3.9370 31 0.9425 3.9329 32 0.9336 3.9096 33 0.9333 3.8561 34 0.9165 3.8359 35 0.8953 3.7017 36 0.8915 3.6815 37 0.8895 3.6633 38 0.8755 3.6053 39 0.8693 3.5901 40 0.8469 3.4937 41 0.8186 3.4058 42 0.8148 3.3783 43 0.8145 3.3760 44 0.8112 3.3654 45 0.8096 3.3641 46 0.7997 3.3442 47 0.7956 3.3156 48 0.7948 3.3098 49 0.7796 3.2995 50 0.7783 3.2793 51 0.7515 3.1293 52 0.7449 3.0875 53 0.7375 3.0785 54 0.7326 3.0436 55 0.7258 3.0092 56 0.7178 2.9766 57 0.6898 2.8623 58 0.6784 2.8202 59 0.6756 2.8074 60 0.6688 2.7596 61 0.6255 2.5780 LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:03 AM Page 10 LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:03 AM Page 11 Duration Flows Flow(cfs)Predev Mit Percentage Pass/Fail 0.4799 1820 48103 2643 Fail 0.4929 1660 46392 2794 Fail 0.5060 1502 44745 2979 Fail 0.5190 1353 43056 3182 Fail 0.5321 1228 41580 3385 Fail 0.5451 1115 40168 3602 Fail 0.5582 1015 38842 3826 Fail 0.5713 931 37430 4020 Fail 0.5843 860 36126 4200 Fail 0.5974 791 34907 4413 Fail 0.6104 731 33752 4617 Fail 0.6235 676 32618 4825 Fail 0.6365 616 31506 5114 Fail 0.6496 575 30500 5304 Fail 0.6626 542 29495 5441 Fail 0.6757 499 28511 5713 Fail 0.6888 457 27570 6032 Fail 0.7018 422 26672 6320 Fail 0.7149 396 25816 6519 Fail 0.7279 371 24961 6728 Fail 0.7410 342 24191 7073 Fail 0.7540 316 23314 7377 Fail 0.7671 299 22522 7532 Fail 0.7801 274 21817 7962 Fail 0.7932 258 21121 8186 Fail 0.8062 239 20471 8565 Fail 0.8193 222 19827 8931 Fail 0.8324 209 19188 9180 Fail 0.8454 198 18636 9412 Fail 0.8585 184 18078 9825 Fail 0.8715 174 17500 10057 Fail 0.8846 165 16972 10286 Fail 0.8976 148 16457 11119 Fail 0.9107 140 15943 11387 Fail 0.9237 136 15462 11369 Fail 0.9368 123 15002 12196 Fail 0.9499 115 14544 12646 Fail 0.9629 108 14119 13073 Fail 0.9760 105 13710 13057 Fail 0.9890 100 13289 13289 Fail 1.0021 94 12927 13752 Fail 1.0151 86 12583 14631 Fail 1.0282 84 12204 14528 Fail 1.0412 75 11873 15830 Fail 1.0543 72 11537 16023 Fail 1.0674 65 11191 17216 Fail 1.0804 63 10857 17233 Fail 1.0935 62 10525 16975 Fail 1.1065 58 10217 17615 Fail 1.1196 54 9944 18414 Fail 1.1326 53 9681 18266 Fail 1.1457 53 9392 17720 Fail 1.1587 50 9131 18262 Fail 1.1718 47 8896 18927 Fail LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:03 AM Page 12 1.1848 45 8680 19288 Fail 1.1979 40 8449 21122 Fail 1.2110 38 8230 21657 Fail 1.2240 34 7969 23438 Fail 1.2371 32 7732 24162 Fail 1.2501 29 7484 25806 Fail 1.2632 28 7276 25985 Fail 1.2762 25 7084 28335 Fail 1.2893 22 6885 31295 Fail 1.3023 21 6710 31952 Fail 1.3154 21 6517 31033 Fail 1.3285 18 6340 35222 Fail 1.3415 15 6156 41040 Fail 1.3546 13 6010 46230 Fail 1.3676 10 5869 58690 Fail 1.3807 9 5715 63500 Fail 1.3937 9 5578 61977 Fail 1.4068 9 5435 60388 Fail 1.4198 8 5266 65825 Fail 1.4329 8 5135 64187 Fail 1.4460 8 5020 62750 Fail 1.4590 8 4855 60687 Fail 1.4721 8 4733 59162 Fail 1.4851 8 4596 57450 Fail 1.4982 8 4483 56037 Fail 1.5112 8 4368 54600 Fail 1.5243 8 4261 53262 Fail 1.5373 8 4154 51925 Fail 1.5504 8 4038 50475 Fail 1.5634 8 3931 49137 Fail 1.5765 8 3841 48012 Fail 1.5896 7 3739 53414 Fail 1.6026 7 3632 51885 Fail 1.6157 6 3548 59133 Fail 1.6287 6 3471 57850 Fail 1.6418 6 3397 56616 Fail 1.6548 6 3317 55283 Fail 1.6679 5 3253 65059 Fail 1.6809 5 3185 63700 Fail 1.6940 5 3112 62240 Fail 1.7071 3 3035 101166 Fail 1.7201 3 2956 98533 Fail 1.7332 3 2890 96333 Fail 1.7462 2 2808 140400 Fail 1.7593 2 2740 137000 Fail 1.7723 2 2661 133050 Fail The development has an increase in flow durations from 1/2 Predeveloped 2 year flow to the 2 year flow or more than a 10% increase from the 2 year to the 50 year flow. The development has an increase in flow durations for more than 50% of the flows for the range of the duration analysis. LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:03 AM Page 13 Water Quality Water Quality BMP Flow and Volume for POC #1 On-line facility volume:1.2822 acre-feet On-line facility target flow:1.6975 cfs. Adjusted for 15 min:1.6975 cfs. Off-line facility target flow:0.9594 cfs. Adjusted for 15 min:0.9594 cfs. LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:03 AM Page 14 LID Report LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:34 AM Page 15 Model Default Modifications Total of 0 changes have been made. PERLND Changes No PERLND changes have been made. IMPLND Changes No IMPLND changes have been made. LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:34 AM Page 16 Appendix Predeveloped Schematic LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:35 AM Page 17 Mitigated Schematic LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:37 AM Page 18 Predeveloped UCI File RUN GLOBAL WWHM4 model simulation START 1948 10 01 END 2009 09 30 RUN INTERP OUTPUT LEVEL 3 0 RESUME 0 RUN 1 UNIT SYSTEM 1 END GLOBAL FILES <File> <Un#> <-----------File Name------------------------------>*** <-ID-> *** WDM 26 LA_Sounders_WWHM_JulyModel_TEN_Rebuild.wdm MESSU 25 PreLA_Sounders_WWHM_JulyModel_TEN_Rebuild.MES 27 PreLA_Sounders_WWHM_JulyModel_TEN_Rebuild.L61 28 PreLA_Sounders_WWHM_JulyModel_TEN_Rebuild.L62 30 POCLA_Sounders_WWHM_JulyModel_TEN_Rebuild1.dat END FILES OPN SEQUENCE INGRP INDELT 00:15 PERLND 1 IMPLND 5 IMPLND 8 COPY 501 DISPLY 1 END INGRP END OPN SEQUENCE DISPLY DISPLY-INFO1 # - #<----------Title----------->***TRAN PIVL DIG1 FIL1 PYR DIG2 FIL2 YRND 1 Predeveloped MAX 1 2 30 9 END DISPLY-INFO1 END DISPLY COPY TIMESERIES # - # NPT NMN *** 1 1 1 501 1 1 END TIMESERIES END COPY GENER OPCODE # # OPCD *** END OPCODE PARM # # K *** END PARM END GENER PERLND GEN-INFO <PLS ><-------Name------->NBLKS Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** 1 A/B, Forest, Flat 1 1 1 1 27 0 END GEN-INFO *** Section PWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC *** 1 0 0 1 0 0 0 0 0 0 0 0 0 END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ***************************** PIVL PYR # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC ********* 1 0 0 4 0 0 0 0 0 0 0 0 0 1 9 LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:37 AM Page 19 END PRINT-INFO PWAT-PARM1 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** 1 0 0 0 0 0 0 0 0 0 0 0 END PWAT-PARM1 PWAT-PARM2 <PLS > PWATER input info: Part 2 *** # - # ***FOREST LZSN INFILT LSUR SLSUR KVARY AGWRC 1 0 5 2 400 0.05 0.3 0.996 END PWAT-PARM2 PWAT-PARM3 <PLS > PWATER input info: Part 3 *** # - # ***PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP 1 0 0 2 2 0 0 0 END PWAT-PARM3 PWAT-PARM4 <PLS > PWATER input info: Part 4 *** # - # CEPSC UZSN NSUR INTFW IRC LZETP *** 1 0.2 0.5 0.35 0 0.7 0.7 END PWAT-PARM4 PWAT-STATE1 <PLS > *** Initial conditions at start of simulation ran from 1990 to end of 1992 (pat 1-11-95) RUN 21 *** # - # *** CEPS SURS UZS IFWS LZS AGWS GWVS 1 0 0 0 0 3 1 0 END PWAT-STATE1 END PERLND IMPLND GEN-INFO <PLS ><-------Name-------> Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** 5 DRIVEWAYS/FLAT 1 1 1 27 0 8 SIDEWALKS/FLAT 1 1 1 27 0 END GEN-INFO *** Section IWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW IWAT SLD IWG IQAL *** 5 0 0 1 0 0 0 8 0 0 1 0 0 0 END ACTIVITY PRINT-INFO <ILS > ******** Print-flags ******** PIVL PYR # - # ATMP SNOW IWAT SLD IWG IQAL ********* 5 0 0 4 0 0 0 1 9 8 0 0 4 0 0 0 1 9 END PRINT-INFO IWAT-PARM1 <PLS > IWATER variable monthly parameter value flags *** # - # CSNO RTOP VRS VNN RTLI *** 5 0 0 0 0 0 8 0 0 0 0 0 END IWAT-PARM1 IWAT-PARM2 <PLS > IWATER input info: Part 2 *** # - # *** LSUR SLSUR NSUR RETSC 5 400 0.01 0.1 0.1 8 400 0.01 0.1 0.1 LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:37 AM Page 20 END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN 5 0 0 8 0 0 END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS 5 0 0 8 0 0 END IWAT-STATE1 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Predeveloped*** PERLND 1 12.3 COPY 501 12 PERLND 1 12.3 COPY 501 13 IMPLND 5 2.06 COPY 501 15 IMPLND 8 0.45 COPY 501 15 ******Routing****** END SCHEMATIC NETWORK <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** COPY 501 OUTPUT MEAN 1 1 48.4 DISPLY 1 INPUT TIMSER 1 <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** END NETWORK RCHRES GEN-INFO RCHRES Name Nexits Unit Systems Printer *** # - #<------------------><---> User T-series Engl Metr LKFG *** in out *** END GEN-INFO *** Section RCHRES*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # HYFG ADFG CNFG HTFG SDFG GQFG OXFG NUFG PKFG PHFG *** END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ******************* PIVL PYR # - # HYDR ADCA CONS HEAT SED GQL OXRX NUTR PLNK PHCB PIVL PYR ********* END PRINT-INFO HYDR-PARM1 RCHRES Flags for each HYDR Section *** # - # VC A1 A2 A3 ODFVFG for each *** ODGTFG for each FUNCT for each FG FG FG FG possible exit *** possible exit possible exit * * * * * * * * * * * * * * *** END HYDR-PARM1 HYDR-PARM2 # - # FTABNO LEN DELTH STCOR KS DB50 *** <------><--------><--------><--------><--------><--------><--------> *** END HYDR-PARM2 LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:37 AM Page 21 HYDR-INIT RCHRES Initial conditions for each HYDR section *** # - # *** VOL Initial value of COLIND Initial value of OUTDGT *** ac-ft for each possible exit for each possible exit <------><--------> <---><---><---><---><---> *** <---><---><---><---><---> END HYDR-INIT END RCHRES SPEC-ACTIONS END SPEC-ACTIONS FTABLES END FTABLES EXT SOURCES <-Volume-> <Member> SsysSgap<--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # tem strg<-factor->strg <Name> # # <Name> # # *** WDM 2 PREC ENGL 1 PERLND 1 999 EXTNL PREC WDM 2 PREC ENGL 1 IMPLND 1 999 EXTNL PREC WDM 1 EVAP ENGL 0.76 PERLND 1 999 EXTNL PETINP WDM 1 EVAP ENGL 0.76 IMPLND 1 999 EXTNL PETINP END EXT SOURCES EXT TARGETS <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Volume-> <Member> Tsys Tgap Amd *** <Name> # <Name> # #<-factor->strg <Name> # <Name> tem strg strg*** COPY 501 OUTPUT MEAN 1 1 48.4 WDM 501 FLOW ENGL REPL END EXT TARGETS MASS-LINK <Volume> <-Grp> <-Member-><--Mult--> <Target> <-Grp> <-Member->*** <Name> <Name> # #<-factor-> <Name> <Name> # #*** MASS-LINK 12 PERLND PWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 12 MASS-LINK 13 PERLND PWATER IFWO 0.083333 COPY INPUT MEAN END MASS-LINK 13 MASS-LINK 15 IMPLND IWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 15 END MASS-LINK END RUN LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:37 AM Page 22 Mitigated UCI File RUN GLOBAL WWHM4 model simulation START 1948 10 01 END 2009 09 30 RUN INTERP OUTPUT LEVEL 3 0 RESUME 0 RUN 1 UNIT SYSTEM 1 END GLOBAL FILES <File> <Un#> <-----------File Name------------------------------>*** <-ID-> *** WDM 26 LA_Sounders_WWHM_JulyModel_TEN_Rebuild.wdm MESSU 25 MitLA_Sounders_WWHM_JulyModel_TEN_Rebuild.MES 27 MitLA_Sounders_WWHM_JulyModel_TEN_Rebuild.L61 28 MitLA_Sounders_WWHM_JulyModel_TEN_Rebuild.L62 30 POCLA_Sounders_WWHM_JulyModel_TEN_Rebuild1.dat END FILES OPN SEQUENCE INGRP INDELT 00:15 PERLND 7 IMPLND 4 IMPLND 8 IMPLND 11 COPY 501 DISPLY 1 END INGRP END OPN SEQUENCE DISPLY DISPLY-INFO1 # - #<----------Title----------->***TRAN PIVL DIG1 FIL1 PYR DIG2 FIL2 YRND 1 Basin 1 MAX 1 2 30 9 END DISPLY-INFO1 END DISPLY COPY TIMESERIES # - # NPT NMN *** 1 1 1 501 1 1 END TIMESERIES END COPY GENER OPCODE # # OPCD *** END OPCODE PARM # # K *** END PARM END GENER PERLND GEN-INFO <PLS ><-------Name------->NBLKS Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** 7 A/B, Lawn, Flat 1 1 1 1 27 0 END GEN-INFO *** Section PWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC *** 7 0 0 1 0 0 0 0 0 0 0 0 0 END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ***************************** PIVL PYR # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC ********* LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:37 AM Page 23 7 0 0 4 0 0 0 0 0 0 0 0 0 1 9 END PRINT-INFO PWAT-PARM1 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** 7 0 0 0 0 0 0 0 0 0 0 0 END PWAT-PARM1 PWAT-PARM2 <PLS > PWATER input info: Part 2 *** # - # ***FOREST LZSN INFILT LSUR SLSUR KVARY AGWRC 7 0 5 0.8 400 0.05 0.3 0.996 END PWAT-PARM2 PWAT-PARM3 <PLS > PWATER input info: Part 3 *** # - # ***PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP 7 0 0 2 2 0 0 0 END PWAT-PARM3 PWAT-PARM4 <PLS > PWATER input info: Part 4 *** # - # CEPSC UZSN NSUR INTFW IRC LZETP *** 7 0.1 0.5 0.25 0 0.7 0.25 END PWAT-PARM4 PWAT-STATE1 <PLS > *** Initial conditions at start of simulation ran from 1990 to end of 1992 (pat 1-11-95) RUN 21 *** # - # *** CEPS SURS UZS IFWS LZS AGWS GWVS 7 0 0 0 0 3 1 0 END PWAT-STATE1 END PERLND IMPLND GEN-INFO <PLS ><-------Name-------> Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** 4 ROOF TOPS/FLAT 1 1 1 27 0 8 SIDEWALKS/FLAT 1 1 1 27 0 11 PARKING/FLAT 1 1 1 27 0 END GEN-INFO *** Section IWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW IWAT SLD IWG IQAL *** 4 0 0 1 0 0 0 8 0 0 1 0 0 0 11 0 0 1 0 0 0 END ACTIVITY PRINT-INFO <ILS > ******** Print-flags ******** PIVL PYR # - # ATMP SNOW IWAT SLD IWG IQAL ********* 4 0 0 4 0 0 0 1 9 8 0 0 4 0 0 0 1 9 11 0 0 4 0 0 0 1 9 END PRINT-INFO IWAT-PARM1 <PLS > IWATER variable monthly parameter value flags *** # - # CSNO RTOP VRS VNN RTLI *** 4 0 0 0 0 0 8 0 0 0 0 0 11 0 0 0 0 0 END IWAT-PARM1 LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:37 AM Page 24 IWAT-PARM2 <PLS > IWATER input info: Part 2 *** # - # *** LSUR SLSUR NSUR RETSC 4 400 0.01 0.1 0.1 8 400 0.01 0.1 0.1 11 400 0.01 0.1 0.1 END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN 4 0 0 8 0 0 11 0 0 END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS 4 0 0 8 0 0 11 0 0 END IWAT-STATE1 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Basin 1*** PERLND 7 4.39 COPY 501 12 PERLND 7 4.39 COPY 501 13 IMPLND 4 0.31 COPY 501 15 IMPLND 8 0.34 COPY 501 15 IMPLND 11 9.77 COPY 501 15 ******Routing****** END SCHEMATIC NETWORK <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** COPY 501 OUTPUT MEAN 1 1 48.4 DISPLY 1 INPUT TIMSER 1 <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** END NETWORK RCHRES GEN-INFO RCHRES Name Nexits Unit Systems Printer *** # - #<------------------><---> User T-series Engl Metr LKFG *** in out *** END GEN-INFO *** Section RCHRES*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # HYFG ADFG CNFG HTFG SDFG GQFG OXFG NUFG PKFG PHFG *** END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ******************* PIVL PYR # - # HYDR ADCA CONS HEAT SED GQL OXRX NUTR PLNK PHCB PIVL PYR ********* END PRINT-INFO HYDR-PARM1 RCHRES Flags for each HYDR Section *** LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:37 AM Page 25 # - # VC A1 A2 A3 ODFVFG for each *** ODGTFG for each FUNCT for each FG FG FG FG possible exit *** possible exit possible exit * * * * * * * * * * * * * * *** END HYDR-PARM1 HYDR-PARM2 # - # FTABNO LEN DELTH STCOR KS DB50 *** <------><--------><--------><--------><--------><--------><--------> *** END HYDR-PARM2 HYDR-INIT RCHRES Initial conditions for each HYDR section *** # - # *** VOL Initial value of COLIND Initial value of OUTDGT *** ac-ft for each possible exit for each possible exit <------><--------> <---><---><---><---><---> *** <---><---><---><---><---> END HYDR-INIT END RCHRES SPEC-ACTIONS END SPEC-ACTIONS FTABLES END FTABLES EXT SOURCES <-Volume-> <Member> SsysSgap<--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # tem strg<-factor->strg <Name> # # <Name> # # *** WDM 2 PREC ENGL 1 PERLND 1 999 EXTNL PREC WDM 2 PREC ENGL 1 IMPLND 1 999 EXTNL PREC WDM 1 EVAP ENGL 0.76 PERLND 1 999 EXTNL PETINP WDM 1 EVAP ENGL 0.76 IMPLND 1 999 EXTNL PETINP END EXT SOURCES EXT TARGETS <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Volume-> <Member> Tsys Tgap Amd *** <Name> # <Name> # #<-factor->strg <Name> # <Name> tem strg strg*** COPY 1 OUTPUT MEAN 1 1 48.4 WDM 701 FLOW ENGL REPL COPY 501 OUTPUT MEAN 1 1 48.4 WDM 801 FLOW ENGL REPL END EXT TARGETS MASS-LINK <Volume> <-Grp> <-Member-><--Mult--> <Target> <-Grp> <-Member->*** <Name> <Name> # #<-factor-> <Name> <Name> # #*** MASS-LINK 12 PERLND PWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 12 MASS-LINK 13 PERLND PWATER IFWO 0.083333 COPY INPUT MEAN END MASS-LINK 13 MASS-LINK 15 IMPLND IWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 15 END MASS-LINK END RUN LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:37 AM Page 26 Predeveloped HSPF Message File LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:37 AM Page 27 Mitigated HSPF Message File LA_Sounders_WWHM_JulyModel_TEN_Rebuild 8/11/2022 11:03:37 AM Page 28 Disclaimer Legal Notice This program and accompanying documentation are provided 'as-is' without warranty of any kind. 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