Loading...
HomeMy WebLinkAboutRS_TIR_20231122_v4Deccio Engineering Inc. 17217 7th Avenue W. Bothell, WA. 98012 (206) 390-8374 Fax: (425) 741-8214 Mahal 2-Lot Short Plat LUA21-000078 Drainage Design Report, O&M Manual & SWPP Report Property Location: 13436 156th Ave SE Renton, WA February 4, 2022 Revised: May 20, 2022 Revised: November 28, 2022 Revised” August 6, 2023 Revised October 9, 2023 Revised: November 14, 2023 Prepared for: Ralraj Mahal DEVELOPMENT ENGINEERING NJanders 12/11/2023 SURFACE WATER UTILITY JFarah 12/11/2023 Drainage Technical Information Report Revised: November 14, 2023 1 | P a g e TABLE OF CONTENTS SECTION 1 PROJECT OVERVIEW 1 o Figure 1: TIR Worksheet 2 o Figure 2: Site Location Map 7 o Figure 3: Existing Site Characteristic, Drainage Basins, and Sub-Basins 8 SECTION 2 CONDITIONS & REQUIREMENTS SUMMARY 9 ❖ King County Requirements SECTION 3 OFF-SITE ANALYSIS 10 ❖ Sensitive Areas Map 11 ❖ Drainage Complaint Map 12 o Figure 4: Upstream and Downstream Flow Map 14 o Figure 5: Downstream System Table 15 SECTION 4 FLOW CONTROL & WATER QUALITY ANALYSIS AND DESIGN 15 o Figure 6: Soils Logs 16 o Figure 7: Developed Conditions Map 16 o Infiltration Requirements 17 o Soil Management Plan 18 SECTION 5 CONVEYANCE SYSTEM ANALYSIS AND DESIGN 18 SECTION 6 SPECIAL REPORTS AND STUDIES 21 SECTION 7 OTHER PERMITS 21 SECTION 8 SWPPP ANALYSIS AND DESIGN 21 SECTION 9 BONDS, SUMMARIES AND COVENANTS 23 SECTION 10 OPERATIONS AND MAINTENANCE MANUAL 23 ❖ Operations and Maintenance Procedures Appendix A • O&M Requirements • WWHM12 Results Drainage Technical Information Report Revised: November 14, 2023 2 | P a g e TIR SECTION 1 PROJECT OVERVIEW Project: Mahal 2-lot Short Plat Site Information: The proposed project is the construction of a 2-lot short plat. The site is located 13436 156th Ave SE Renton. More generally the site is located within SW ¼ of the NE ¼ of Section 24, Township 23 North, Range 05 East, W.M., see Figure 2: Vicinity Map. The site is bordered by residential lots on the north, south, east, and west sides of the site. Pre-developed Site Conditions: The site is 29,105 sf in size and contains an existing home, driveway, patio and walkway and landscaping with a total existing impervious area of 4,254 sf. The lot slopes from east to west with all runoff leaving the site along the west property line. There are no known sensitive areas on site. The soils report prepared for the site show the site soils are suitable infiltration. Please refer to Figure 3: Existing Conditions Map.. Developed Site Conditions: The project will consist of construction of a 2-lot short plat with two single family dwellings and driveways. Half Street frontage improvements in the form of curbs, gutters, sidewalks and landscape strip will be required on 156th Ave SE. Please refer to Figure 7: Developed Conditions Map Since the impervious area exceeds the 10,000 sf threshold, flow control will be addressed through infiltration of the runoff from the proposed site improvements. (See TIR Section 4 of this report) The project will use the Design Requirement’s under Chapter 5 of the 2017 City of Renton Surface Water Design Manual. Drainage Technical Information Report Revised: November 14, 2023 3 | P a g e Figure 1: TIR Worksheet Drainage Technical Information Report Revised: November 14, 2023 4 | P a g e Figure 1: TIR Worksheet Drainage Technical Information Report Revised: November 14, 2023 5 | P a g e Figure 1: TIR Worksheet Drainage Technical Information Report Revised: November 14, 2023 6 | P a g e Figure 1: TIR Worksheet Drainage Technical Information Report Revised: November 14, 2023 7 | P a g e Figure 1: TIR Worksheet Drainage Technical Information Report Revised: November 14, 2023 8 | P a g e Figure 1: TIR Worksheet Drainage Technical Information Report Revised: November 14, 2023 9 | P a g e Figure 2: Site Location Map Drainage Technical Information Report Revised: November 14, 2023 10 | P a g e Figure 3: Drainage Basins, Sub-basins and Site Characteristics Drainage Technical Information Report Revised: November 14, 2023 11 | P a g e TIR SECTION 2 CONDITIONS & REQUIREMENTS SUMMARY The City of Renton has adopted the City of Renton 2017 storm water manual which governs the design of stormwater systems to serve this project. The Core and Special Requirements are being met in the following manner: City of Renton 2017 storm water manual Core Requirements: 1. Discharge at the Natural Location Under 1.2.1-2, The surveyed contours show all runoff leaves the site towards west. The drainage design proposes to use BMP’s to address the runoff through infiltration with any over flow leaving the site along the west side maintaining the natural discharge location. 2. Off-site Analysis The Level 1 downstream analysis showed that there will be minimal impacts on the downstream conditions, since the site proposes to use small site BMP’s to address all stormwater runoff. 3. Flow Control The WWHM12 results show the total increase in flows for the 100-year design storm is less than 0.15 cfs. Therefore, the site will provide flow control in the form of infiltration which will be designed per Chapter 5 of 2017 RSWDM 4. Conveyance System None proposed on-site. 156th Ave SE contains existing 12” storm . 5. Temporary Erosion & Sediment Control All TESC measures proposed will conform to the 2017 RSWDM during construction, Refer to Section 9 of this TIR for additional information. The measures shown on the TESC plans include: Clearing limits, sediment control, soil stabilization, BMP’s maintenance and construction sequence 6. Maintenance & Operations Maintenance and Operations manual has been provided. Note that a “Declaration of Covenant” may be required. See Section 10. 7. Financial Guarantees & Liability A completed bond quantity worksheet will be provided at the time of preparation of construction plans 8. Water Quality Since new pollution generating impervious surface is less than 5,000 sf, water quality is not required. Refer to Section 4 of this report. Drainage Technical Information Report Revised: November 14, 2023 12 | P a g e 9. On-Site BMP’s Full dispersion will be used to address the on-site stormwater runoff City of Renton 2017 storm water manual Special Requirements: 1. Other Adopted Area-Specific Requirements There are no area-specific requirements for this project site. 2. Floodplain/Floodway Delineation A review of the FEMA FIRM panels for the site, shows that the site and area of work is outside any floodplain areas and site does not contain any floodplain/floodway delineations. 3. Flood Protection Facilities There are no flood protection facilities located on or directly adjacent to the site. 4. Source Control This final site does not meet the threshold for source control requirements. 5. Oil Control This final site does not meet the threshold for oil control requirements. 6. Aquifer Protection Area None known. Drainage Technical Information Report Revised: November 14, 2023 13 | P a g e City of Renton Conditions FINDINGS/CONCLUSIONS: To be determined TIR SECTION 3 OFF-SITE ANALYSIS TASK 1 – STUDY AREA DEFINITIONS AND MAPS Overview This section of the TIR is a Level 1 Downstream Analysis per the City of Renton 2017 storm water manual Section 2.3. The project will consist of construction of a 2-lot short plat with two single family dwellings and driveways. Half Street frontage improvements in the form of curbs, gutters, sidewalks and landscape strip will be required on 156th Ave SE., see Figure 2: Vicinity Map. The site is bordered by residential lots on the north, south, east, and west sides of the site. Upstream Drainage Analysis / Upstream Contributing Area Based on the site contours, there is minimal off-site drainage from upstream areas draining onto the site from the east. The site slopes from east to west eliminating any off-site runoff from the north and south sides of the site. Therefore the drainage is basically limited to the site itself. TASK 2 – RESOURCE REVIEW Adopted Basin Plan The site is located in the Cedar River Basin and East Lake Washington Basin which flows into Puget Sound. Community Plan The site is located in the East Lake Washington Basin Planning Area. Basin Reconnaissance Summary Report We are not aware of a current Basin Reconnaissance Summary Report for this area. Critical Drainage Area The site is not considered to be within a critical drainage area as defined by the 2017 RSWDM Sensitive Area Maps Per City of Renton the site does contain areas of steep slope with a potential for landslide hazard sensitive areas. (See “Sensitive Areas Map”) Soils Survey The soils logs for the site show the site soils to be a silty sand and suitable for infiltration. Drainage Technical Information Report Revised: November 14, 2023 14 | P a g e Wetland / Stream Inventory No known wetlands or streams exist with-in the site. A review of the FEMA FIRM panels for the site, shows that the site and area of work is outside any floodplain areas and site does not contain any floodplain/floodway delineations. Drainage Complaints There appeared to be several drainage complaints downstream. All were minor and all were over 17-years old. (See “Drainage Complaints Map”) TASK 3 – FIELD INSPECTION A Level 1 site inspection was performed on January 20, 2019. The weather was overcast with temperatures around the 40’s degrees. The inspection focused on identifying potential downstream drainage and water quality problems As previously indicated, the site slopes to the east to west with all runoff leaving along the west side of the site TASK 4 – DRAINAGE SYSTEM DESCRIPTION, AND PREDICTED DRAINAGE AND WATER QUALITY PROBLEMS OFFSITE LEVEL ONE DOWNSTREAM ANALYSIS 1. The runoff leaves the property along the west side and into the storm system serving 156th Ave SE. from here it flows south for a distance of 2,000 ft to SE 142nd Place before discharging into an unnamed stream 2. This stream flows for a distance of 1,200 feet south and into the Cedar River. 3. The Cedar River then flows west over 1-mile before discharging into the south end of Lake Washington. The total distance covered is just over 1-mile Basin 1 Predicted Drainage and Water Quality Problems The steep slopes located along the stream and river may have erosion issues. However, since most of the downstream including the discharge locations were on private property and not accessible to inspection, no drainage issues could be confirmed. TASK 5 MITIGATION OF EXISTING OR POTENTIAL PROBLEMS The project proposes to use infiltration to address the storm water runoff from the proposed site improvements. Since all stormwater is to be retained on-site, the site does not expect to generate any surface water discharge, thereby minimizing any possible flooding issues downstream Drainage Technical Information Report Revised: November 14, 2023 15 | P a g e Figure 5: Upstream Area and Downstream Flow Map Drainage Technical Information Report Revised: November 14, 2023 16 | P a g e Figure 6: Downstream System Table Drainage Technical Information Report Revised: November 14, 2023 17 | P a g e Drainage Complaints Drainage Technical Information Report Revised: November 14, 2023 18 | P a g e Sensitives Areas Drainage Technical Information Report Revised: November 14, 2023 19 | P a g e TIR SECTION 4 FLOW CONTROL & WATER QUALITY ANALYSIS AND DESIGN HYDRAULIC ANALYSIS OF SITE: Under Core Requirement #3, the site will address the stormwater runoff using infiltration trenches per Chapter 5 of the Stormwater Manual The infiltration trenches were modeled using the WWHM12 program with 15-minute time steps WWHM12 100-YEAR FLOW ANALYSIS The following land use information was used in the calculations for the flow control exemption. Since the roof areas are to be infiltrated, this area of 8,965 sf can be subtracted from the total site area. Modeling Credits: Under Section C.2.13.1, landscape areas meeting the amended soil requirements can be modeled as “Pasture” Total Site Areas: • Right of Way Area: 1,850 sf • Site Area: 29,105 sf Total Area: 30,955 sf • Area to be Infiltrated: - 8,965 sf Net Area: 21,990 sf or 0.50 acres (Forested Cover) Existing Areas: • Net Area: 21,990 sf or 0.50 acres (Forested Cover) Developed Areas: • Drives/Walks/Parking: 5,859 sf or 0.13 acres (Impervious) • Landscaping: 16,131 sf or 0.37 acres (Model as pasture) Total Dev: 21,990 sf or 0.50 acres WWHM12 Modeling Results: • 0.1374 cfs (dev) – 0.0475 cfs (predev) = 0.0899 cfs < 0.15 cfs increase (See Appendix A for Results) Therefore, based on the results of the WWHM12 program, the site will stormwater BMP’s to control the runoff. Drainage Technical Information Report Revised: November 14, 2023 20 | P a g e WWHM12 DEVELOPED MODELING CONDITIONS ROOF INFILTRATION FACILITIES DESIGN The infiltration trenches were designed using the requirements outline in Chapter 5 of the Renton Surface Water Design Manual. The “South Sound” Geotech report prepared for the site (Appendix B) identified the site soils in in the area of Test Pit-1 (PIT-1) as a Silty Sand w/Gravel with a field infiltration rate of 6.0 inches per hour and recommended infiltration design rate of 1.40 inches per hour. Gravel Trench Calculation Results: The sizing of the Gravel Trench to infiltrate the 100-year developed flows was designed using the WWHM12. The results for the trench sizing are included in Appendix A. LOT 1 TRENCH #1: The partial roof area for Lot 1 Trench #1 is 2,628 sf (0.060 acres) and the trenches will be designed using the 1.40 inch per hour rate. The WWHM12 program was then used to size the trenches with the following results: • Total Impervious Roof Area: 2,628 sf (0.060 acres) • Design Infiltration rate: 1.40 in/hr (See “South Sound” Infiltration Results) • Correction Factor: 1.0 • WWHM12 Roof Trench Size Req’d: 90.0-ft x 5.01-ft wide x 1.5’ deep @ 547.6 sf area (See WWHM12 Results) • Trench Size Provide: 90-ft x 5-ft wide x 1.5-ft deep (See WWHM12 Summary Sheet for Lot 1 Trench #1) Drainage Technical Information Report Revised: November 14, 2023 21 | P a g e LOT 1 TRENCH #2: The partial roof area for Lot 1 Trench #2 is 653 sf (0.015 acres) and the trenches will be designed using the 1.40 inch per hour rate. The WWHM12 program was then used to size the trenches with the following results: • Total Impervious Roof Area: 653 sf (0.015 acres) • Design Infiltration rate: 1.40 in/hr (See “South Sound” Infiltration Results) • Correction Factor: 1.0 • WWHM12 Roof Trench Size Req’d: 21.86-ft x 4.75-ft wide x 1.5’ deep (See WWHM12 Results) • Trench Size Provide: 23-ft x 5-ft wide x 1.5-ft deep (See WWHM12 Summary Sheet for Lot 1 Trench #2) LOT 2 TRENCH #3: The partial roof areas for Lot 2 Trench #3 is 3,102 sf (0.071 acres) This includes the main house roof at 4,876 sf and the DADU roof at 600 sf. The trenches will be designed using the 1.40 inch per hour rate. The WWHM12 program was then used to size the trenches with the following results: • Total Impervious Roof Area: 3,102 sf (0.071 acres) • Design Infiltration rate: 1.40 in/hr (See “South Sound” Infiltration Results) • Correction Factor: 1.0 • WWHM12 Roof Trench Size Req’d: 111.9-ft long by 4.99-ft wide x 1.5’ deep (See WWHM12 Results) • Trench Size Provide: 112-ft x 5-ft wide x 1.5-ft deep (See WWHM12 Summary Sheet for Lot 2 Trench #3) LOT 2 TRENCH #4: The partial roof areas for Lot 2 Trench #4 is 2,382 sf (0.054 acres) This includes the main house roof at 4,876 sf and the DADU roof at 600 sf. The trenches will be designed using the 1.40 inch per hour rate. The WWHM12 program was then used to size the trenches with the following results: • Total Impervious Roof Area: 2,382 sf (0.054 acres) • Design Infiltration rate: 1.40 in/hr (See “South Sound” Infiltration Results) • Correction Factor: 1.0 • WWHM12 Roof Trench Size Req’d: 80.6-ft long by 5.01-ft wide x 1.5’ deep (See WWHM12 Results) • Trench Size Provide: 83-ft x 5-ft wide x 1.5-ft deep • (See WWHM12 Summary Sheet for Lot 2 Trench #3) PERVIOUS PAVEMENT Porous pavement will be provided for all driveways . Drainage Technical Information Report Revised: November 14, 2023 22 | P a g e SUMMARY OF TARGETED SURFACES Lot 1 Summary: • Roof Area: Full Infiltration • Driveway: Porous Pavement • Pervious Areas: Amended Soils Lot 2 Summary: • Roof Area: Full Infiltration • Driveway: Porous Pavement • Pervious Areas: Amended Soils Driveway Access tract: Porous Pavement Figure 7: Developed Conditions Drainage Technical Information Report Revised: November 14, 2023 23 | P a g e LOT 1 TRENCH #1 RESULTS Drainage Technical Information Report Revised: November 14, 2023 24 | P a g e LOT 1 TRENCH #2 RESULTS Drainage Technical Information Report Revised: November 14, 2023 25 | P a g e LOT 2 TRENCH #3 RESULTS Drainage Technical Information Report Revised: November 14, 2023 26 | P a g e LOT 2 TRENCH #4 RESULTS Drainage Technical Information Report Revised: November 14, 2023 27 | P a g e SOILS LOGS Drainage Technical Information Report Revised: November 14, 2023 28 | P a g e TIR SECTION 5 CONVEYANCE SYSTEM ANALYSIS AND DESIGN PIPE CAPACITY: None Required all storm pipe is existing. TIR SECTION 6 SPECIAL REPORTS AND STUDIES None Required. TIR SECTION 7 OTHER PERMITS Below is the list of anticipated permits required for this project. Other permits may be required that are not mentioned below. Building Permit – New Single Family Residence Right of Way- construction permit Franchise permit required for KCWD90 Drainage Technical Information Report Revised: November 14, 2023 29 | P a g e TIR SECTION 8 CSWPPP ANALYSIS AND DESIGN For the purposes of this report, several standard erosion control procedures will be utilized by the contractor to minimize the amount of erosion and sedimentation perpetuated by the construction of the site. Furthermore, these techniques are proposed for the Construction Stormwater Pollution Prevention Plan (CSWPPP) and should be reviewed and instituted by the onsite contractor. Some of the measures include filter fabric fence, and standard ground cover practices, A construction sequence will also be used to minimize the impacts of erosion due to construction. ESC Plan Analysis and Design (Part A) 1. At just under 12,000 sf the site is small requiring only minimal ESC measures. The 13- Elements of a Construction CSWPPP listed below, discuss and describe the appropriate ESC measure to be used. 2. Due to the small size of the site, no ESC facilities are proposed. Therefore, no analysis of the site’s ESC facilities was required. The proposed BMPs consist of standard items including: filter fences, construction entrance, CB inlet protection and plastic cover, etc. No sediment traps are proposed. 3. The site is fairly flat and the areas of high erosion are minimal and will be controlled by the filter fence around the perimeter of the site. 4. There were no special reports done for the site. 5. No exceptions or modifications are proposed of the “Erosion and Sedimentation Control Standards” ESC Plan Analysis and Design (Part B) A full SWPP Plan and report will be prepared for the site after preliminary approval is received. THE 13 ELEMENTS OF A CONSTRUCTION CSWPPP 1. Preserve Vegetation/Mark Clearing Limits: The clearing limits are indicated on the plan sheet. Furthermore, clearing and grading will be limited to only areas that need to be disturbed for grading/construction of the road surface to preserve as much natural vegetation as possible. Field marking the clearing limits shall be completed prior to clearing and grubbing activities. BMP's: Preserve Natural Vegetation (VEG) Field Marking Clearing Limits (CL) 2. Establish Construction Access: Access to the construction site shall be limited to the rock construction entrance. The construction entrance shall be extended to provide access to the construction vehicle/equipment staging and employee parking areas. BMP's: Stabilized Construction Entrance (CE) 3. Control of Flow Rates: Storm water detention: No detention is proposed for the site since the increase in volume is minimal 4. Installation of Perimeter Sediment Controls: Sediment control will be provided through a combination of filtration through the surround on-site vegetation, filter fence, straw bails, BMP's: Silt Fence (FF) 5. Soils Stabilization: Temporary and permanent soil stabilization will be provided. Temporary stabilization will be provided through the application of straw and/or plastic sheeting to exposed, worked earth. From October 1 until April 30, no exposed soil may remain exposed and unworked for more than two days; after May 1, no exposed soil may remain exposed and unworked for more than seven days. BMP's: Plastic Sheeting, Drainage Technical Information Report Revised: November 14, 2023 30 | P a g e 6. Slope Protection: Slopes shall be protected from erosion through cover and prevention of concentrated surface runoff flows. BMP's: Plastic Sheeting, 7. Protection of Permanent Drain Inlets and Dust/Mud Control: Inlet protection will be provided for all catch basins. BMP’s: Inlet Protection BMP’s: Street Sweeping and watering of dust areas 8. Stabilization of Channels and Outlets: All channel slopes shall be constructed and protected against erosion in accordance with City of Renton BMP's: None required 9. Pollutant Control: Pollutants shall be controlled as described in the Potential Pollutants section of this SWPPP. 10. Dewatering Control: De-watering: Interception of the water table is not expected to occur, even if there is an increase in precipitation. However, should ground water flows be encountered, the flows can be directed to on site native vegetation for cleanup. BMP's: Native vegetation (As Required) 11. BMP Maintenance: All BMP's and SWPPP elements shall be inspected daily and maintained as required. 12. Project Management: The project shall be managed in a cooperative effort by the project manager, contractor, engineer, and the county inspector. During the construction process, if unforeseen issues arise that cannot be resolved on site, construction activity (other than SWPPP maintenance) shall be halted and the county inspector and the project engineer are to be contacted and informed of the situation. The Erosion Control Lead TBD 13. Protect On-Site Stormwater Management BMPs For Runoff From Roofs And Other Hard Surface On-site stormwater management BMPs used for runoff from roofs and other hard surfaces include: full dispersion, roof downspout full infiltration or dispersion systems, perforated stubout connections, rain gardens, bioretention systems, permeable pavement, sheetflow dispersion, and concentrated flow dispersion. The areas on the site to be used for these BMPs shall be protected from siltation and compaction during construction by sequencing the construction in a fashion to install these BMPs at the latter part of the construction grading operations, by excluding equipment from the BMPS and the associated areas, and by using the erosion and sedimentation control BMPs. BMP C102: Buffer Zone Since the project is for residential lots, under SCC 30.63 A.530, (2) the project does not fall under the “High Use Sites” covering commercial or industrial sites. BMP C-151: Concrete Handling (Design and Installation Specifications) Concrete truck chutes, pumps, and internals shall be washed out only into formed areas awaiting installation of concrete or asphalt. Unused concrete remaining in the truck and pump shall be returned to the originating batch plant for recycling. Hand tools including, but not limited to, screeds, shovels, rakes, floats, and trowels shall be washed off only into formed areas awaiting installation of concrete or asphalt. Equipment that cannot be easily moved, such as concrete pavers, shall only be washed in areas that do not directly drain to natural or constructed stormwater conveyances. Washdown from areas such as concrete aggregate driveways shall not drain directly to natural or constructed stormwater conveyances. Drainage Technical Information Report Revised: November 14, 2023 31 | P a g e When no formed areas are available, washwater and leftover product shall be contained in a lined container. Contained concrete shall be disposed of in a manner that does not violate groundwater or surface water quality standards Maintenance Standards: Containers shall be checked for holes in the liner daily during concrete pours and repaired the same day Soil Management Plan for “Post Construction Soil Standard” The top soils will be stockpile on-site and reused per “Implementation Options #4b “Amend existing soil in place per the Post Construction Soil Standard” which requires “Stockpile existing top soils during grading and replace it prior to planting…” In addition, the soils will be required to be tested for organic compliance. See the following requirements. Drainage Technical Information Report Revised: November 14, 2023 32 | P a g e Drainage Technical Information Report Revised: November 14, 2023 33 | P a g e Drainage Technical Information Report Revised: November 14, 2023 34 | P a g e Amend Existing Soils, Purpose and Definition Naturally occurring (undisturbed) soil and vegetation provide important stormwater functions including: water infiltration; nutrient, sediment, and pollutant adsorption; sediment and pollutant biofiltration; water interflow storage and transmission; and pollutant decomposition. These functions are largely lost when development strips away native soil and vegetation and replaces it with minimal topsoil and sod. Not only are these important stormwater functions lost, but such landscapes themselves become pollution- generating pervious surfaces due to increased use of pesticides, fertilizers and other landscaping and household/industrial chemicals, the concentration of pet wastes, and pollutants that accompany roadside litter. Establishing soil quality and depth regains greater stormwater functions in the post development landscape, provides increased treatment of pollutants and sediments that result from development and habitation, and minimizes the need for some landscaping chemicals, thus reducing pollution through prevention. Applications and Limitations Establishing a minimum soil quality and depth is not the same as preservation of naturally occurring soil and vegetation. However, establishing a minimum soil quality and depth will provide improved on-site management of stormwater flow and water quality. Soil organic matter can be attained through numerous materials such as compost, composted woody material, biosolids, and forest product residuals. It is important that the materials used to meet the soil quality and depth BMP be appropriate and beneficial to the plant cover to be established. Likewise, it is important that imported topsoils improve soil conditions and do not have an excessive percent of clay fines. Design Guidelines Soil retention. The duff layer and native topsoil should be retained in an undisturbed state to the maximum extent practicable. In any areas requiring grading remove and stockpile the duff layer and topsoil on site in a designated, controlled area, not adjacent to public resources and critical areas, to be reapplied to other portions of the site where feasible. Soil quality. All areas subject to clearing and grading that have not been covered by impervious surface, incorporated into a drainage facility or engineered as structural fill or slope shall, at project completion, demonstrate the following: I. A topsoil layer with a minimum organic matter content of ten percent dry weight in planting beds, and 5% organic matter content (based on a loss-on-ignition test) in turf areas, and a pH from 6.0 to 8.0 or matching the pH of the original undisturbed soil. The topsoil layer shall have a minimum depth of eight inches except where tree roots limit the depth of incorporation of amendments needed to meet the criteria. Subsoils below the topsoil layer should be scarified at least 4 inches with some incorporation of the upper material to avoid stratified layers, where feasible. 2. Planting beds must be mulched with 2 inches of organic material 3. Quality of compost and other materials used to meet the organic content requirements: a. The organic content for -pre-approved” amendment rates can be met only using compost that meets the definition of -composted materials” in WAC I73-350-220. This code is available online at: http://www.ecy.wa.gov/programs/swfa/facilities/350.html. Compost used in bioretention areas should be stable, mature and derived from yard debris, wood waste, or other organic materials that meet the intent of the organic soil amendment specification. Biosolids and manure composts can be higher in bio-available phosphorus than compost derived from yard or plant waste and therefore are not allowed in bioretention areas due to the possibility of exporting bio-available phosphorus in effluent. Drainage Technical Information Report Revised: November 14, 2023 35 | P a g e The compost must also have an organic matter content of 35% to 65%, and a carbon to nitrogen ratio below 25:I. The carbon to nitrogen ratio may be as high as 35:I for plantings composed entirely of plants native to the Puget Sound Lowlands region. b. Calculated amendment rates may be met through use of composted materials as defined above; or other organic materials amended to meet the carbon to nitrogen ratio requirements, and meeting the contaminant standards of Grade A Compost. The resulting soil should be conducive to the type of vegetation to be established. Implementation Options: The soil quality design guidelines listed above can be met by using one of the methods listed below. I. Leave undisturbed native vegetation and soil, and protect from compaction during construction. 2. Amend disturbed soil according to the following procedures: b. Scarify subsoil to a depth of one foot c. In planting beds, place three inches of compost and till in to an eight-inch depth. d. In turf areas, place two inches of compost and till in to an eight-inch depth. e. Apply two to four inches of arborist wood chip, coarse bark mulch, or compost mulch to planting beds after final planting. Alternatively, disturbed soil can be amended on a site-customized manner so that it meets the soil quality criteria set forth above, as determined by a licensed engineer, geologist, landscape architect, or other person as approved by City of Renton. 3. Stockpile existing topsoil during grading, and replace it prior to planting. Stockpiled topsoil must be amended if needed to meet the organic matter and depth requirements by following the procedures in method (2) above). 4. Import topsoil mix of sufficient organic content and depth to meet the organic matter and depth requirements. 5. More than one method may be used on different portions of the same site. Soil that already meets the depth and organic matter quality standards, and is not compacted, does not need to be amended. Maintenance Soil quality and depth should be established toward the end of construction and once established, should be protected from compaction, such as from large machinery use, and from erosion. Soil should be planted and mulched after installation. Plant debris or its equivalent should be left on the soil surface to replenish organic matter. Drainage Technical Information Report Revised: November 14, 2023 36 | P a g e TIR SECTION 9 BONDS, SUMMARIES AND COVENANTS All the necessary documents listed below will be included in the Full TIR report after preliminary approval is received. These will include: • Bond Quantities, • Flow Control and Water Quality Facility Summary Sheet and Sketch • Declaration of Covenant for Privately Maintained Flow Control and WQ Facilities • Declaration of Covenant for Privately Maintained Flow Control BMPs TIR SECTION 10 OPERATIONS AND MAINTENANCE MANUAL Stormwater System Description The stormwater system for the site is fairly basic and contains the following elements: • On-site Infiltration Trenches • Catch basins • Pervious pavement The stormwater runoff from the site improvements flows over to catch basins then to the on-site infiltration trenches. Water quality treatment is not a requirement for the site since it is under the 5,000 sf threshold. Drainage Technical Information Report Revised: November 14, 2023 37 | P a g e Appendix A • O&M Requirements • WWHM12 100-Year Results WWHM2012 PROJECT REPORT LOT 1 TRENCH #1 RESULTS default[57]10/10/2023 8:27:12 AM Page 2 General Model Information Project Name:default[57] Site Name: Site Address: City: Report Date:10/10/2023 Gage:Seatac Data Start:1948/10/01 Data End:2009/09/30 Timestep:15 Minute Precip Scale:1.000 Version Date:2021/08/18 Version:4.2.18 POC Thresholds Low Flow Threshold for POC1:50 Percent of the 2 Year High Flow Threshold for POC1:50 Year default[57]10/10/2023 8:27:12 AM Page 3 Landuse Basin Data Predeveloped Land Use Basin 1 Bypass:No GroundWater:No Pervious Land Use acre C, Forest, Mod 0.06 Pervious Total 0.06 Impervious Land Use acre Impervious Total 0 Basin Total 0.06 Element Flows To: Surface Interflow Groundwater default[57]10/10/2023 8:27:12 AM Page 4 Mitigated Land Use Basin 1 Bypass:No GroundWater:No Pervious Land Use acre Pervious Total 0 Impervious Land Use acre ROOF TOPS FLAT 0.06 Impervious Total 0.06 Basin Total 0.06 Element Flows To: Surface Interflow Groundwater Gravel Trench Bed 1 Gravel Trench Bed 1 default[57]10/10/2023 8:27:12 AM Page 5 Routing Elements Predeveloped Routing default[57]10/10/2023 8:27:12 AM Page 6 Mitigated Routing Gravel Trench Bed 1 Bottom Length:90.09 ft. Bottom Width:5.02 ft. Trench bottom slope 1:0.01 To 1 Trench Left side slope 0:0.01 To 1 Trench right side slope 2:0.01 To 1 Material thickness of first layer:1.5 Pour Space of material for first layer:0.33 Material thickness of second layer:0 Pour Space of material for second layer:0 Material thickness of third layer:0 Pour Space of material for third layer:0 Infiltration On Infiltration rate:1.4 Infiltration safety factor:1 Wetted surface area On Total Volume Infiltrated (ac-ft.):9.305 Total Volume Through Riser (ac-ft.):0 Total Volume Through Facility (ac-ft.):9.305 Percent Infiltrated:100 Total Precip Applied to Facility:0 Total Evap From Facility:0 Discharge Structure Riser Height:1.4 ft. Riser Diameter:6 in. Element Flows To: Outlet 1 Outlet 2 Gravel Trench Bed Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)Infilt(cfs) 0.0000 0.010 0.000 0.000 0.000 0.0167 0.010 0.000 0.000 0.014 0.0333 0.010 0.000 0.000 0.014 0.0500 0.010 0.000 0.000 0.014 0.0667 0.010 0.000 0.000 0.014 0.0833 0.010 0.000 0.000 0.014 0.1000 0.010 0.000 0.000 0.014 0.1167 0.010 0.000 0.000 0.014 0.1333 0.010 0.000 0.000 0.014 0.1500 0.010 0.000 0.000 0.014 0.1667 0.010 0.000 0.000 0.014 0.1833 0.010 0.000 0.000 0.014 0.2000 0.010 0.000 0.000 0.014 0.2167 0.010 0.000 0.000 0.014 0.2333 0.010 0.000 0.000 0.014 0.2500 0.010 0.000 0.000 0.014 0.2667 0.010 0.000 0.000 0.014 0.2833 0.010 0.001 0.000 0.014 0.3000 0.010 0.001 0.000 0.014 0.3167 0.010 0.001 0.000 0.014 0.3333 0.010 0.001 0.000 0.014 0.3500 0.010 0.001 0.000 0.014 0.3667 0.010 0.001 0.000 0.014 default[57]10/10/2023 8:27:12 AM Page 7 0.3833 0.010 0.001 0.000 0.014 0.4000 0.010 0.001 0.000 0.014 0.4167 0.010 0.001 0.000 0.014 0.4333 0.010 0.001 0.000 0.014 0.4500 0.010 0.001 0.000 0.014 0.4667 0.010 0.001 0.000 0.014 0.4833 0.010 0.001 0.000 0.014 0.5000 0.010 0.001 0.000 0.014 0.5167 0.010 0.001 0.000 0.014 0.5333 0.010 0.001 0.000 0.014 0.5500 0.010 0.001 0.000 0.014 0.5667 0.010 0.001 0.000 0.014 0.5833 0.010 0.002 0.000 0.014 0.6000 0.010 0.002 0.000 0.014 0.6167 0.010 0.002 0.000 0.014 0.6333 0.010 0.002 0.000 0.014 0.6500 0.010 0.002 0.000 0.014 0.6667 0.010 0.002 0.000 0.014 0.6833 0.010 0.002 0.000 0.014 0.7000 0.010 0.002 0.000 0.014 0.7167 0.010 0.002 0.000 0.014 0.7333 0.010 0.002 0.000 0.014 0.7500 0.010 0.002 0.000 0.014 0.7667 0.010 0.002 0.000 0.014 0.7833 0.010 0.002 0.000 0.014 0.8000 0.010 0.002 0.000 0.014 0.8167 0.010 0.002 0.000 0.014 0.8333 0.010 0.002 0.000 0.014 0.8500 0.010 0.002 0.000 0.014 0.8667 0.010 0.003 0.000 0.014 0.8833 0.010 0.003 0.000 0.014 0.9000 0.010 0.003 0.000 0.014 0.9167 0.010 0.003 0.000 0.014 0.9333 0.010 0.003 0.000 0.014 0.9500 0.010 0.003 0.000 0.014 0.9667 0.010 0.003 0.000 0.014 0.9833 0.010 0.003 0.000 0.014 1.0000 0.010 0.003 0.000 0.014 1.0167 0.010 0.003 0.000 0.014 1.0333 0.010 0.003 0.000 0.014 1.0500 0.010 0.003 0.000 0.014 1.0667 0.010 0.003 0.000 0.014 1.0833 0.010 0.003 0.000 0.014 1.1000 0.010 0.003 0.000 0.014 1.1167 0.010 0.003 0.000 0.014 1.1333 0.010 0.003 0.000 0.014 1.1500 0.010 0.003 0.000 0.014 1.1667 0.010 0.004 0.000 0.014 1.1833 0.010 0.004 0.000 0.014 1.2000 0.010 0.004 0.000 0.014 1.2167 0.010 0.004 0.000 0.014 1.2333 0.010 0.004 0.000 0.014 1.2500 0.010 0.004 0.000 0.014 1.2667 0.010 0.004 0.000 0.014 1.2833 0.010 0.004 0.000 0.014 1.3000 0.010 0.004 0.000 0.014 1.3167 0.010 0.004 0.000 0.014 1.3333 0.010 0.004 0.000 0.014 default[57]10/10/2023 8:27:12 AM Page 8 1.3500 0.010 0.004 0.000 0.014 1.3667 0.010 0.004 0.000 0.014 1.3833 0.010 0.004 0.000 0.014 1.4000 0.010 0.004 0.000 0.014 1.4167 0.010 0.004 0.011 0.014 1.4333 0.010 0.004 0.032 0.014 1.4500 0.010 0.005 0.059 0.014 1.4667 0.010 0.005 0.090 0.014 1.4833 0.010 0.005 0.124 0.014 1.5000 0.010 0.005 0.160 0.014 default[57]10/10/2023 8:27:12 AM Page 9 Analysis Results POC 1 + Predeveloped x Mitigated Predeveloped Landuse Totals for POC #1 Total Pervious Area:0.06 Total Impervious Area:0 Mitigated Landuse Totals for POC #1 Total Pervious Area:0 Total Impervious Area:0.06 Flow Frequency Method:Log Pearson Type III 17B Flow Frequency Return Periods for Predeveloped. POC #1 Return Period Flow(cfs) 2 year 0.001787 5 year 0.002927 10 year 0.003661 25 year 0.004533 50 year 0.005138 100 year 0.005702 Flow Frequency Return Periods for Mitigated. POC #1 Return Period Flow(cfs) 2 year 0 5 year 0 10 year 0 25 year 0 50 year 0 100 year 0 Annual Peaks Annual Peaks for Predeveloped and Mitigated. POC #1 Year Predeveloped Mitigated 1949 0.002 0.000 1950 0.002 0.000 1951 0.004 0.000 1952 0.001 0.000 1953 0.001 0.000 1954 0.002 0.000 1955 0.002 0.000 1956 0.002 0.000 1957 0.002 0.000 1958 0.002 0.000 default[57]10/10/2023 8:27:44 AM Page 10 1959 0.002 0.000 1960 0.003 0.000 1961 0.001 0.000 1962 0.001 0.000 1963 0.001 0.000 1964 0.002 0.000 1965 0.001 0.000 1966 0.001 0.000 1967 0.003 0.000 1968 0.002 0.000 1969 0.002 0.000 1970 0.001 0.000 1971 0.001 0.000 1972 0.003 0.000 1973 0.001 0.000 1974 0.001 0.000 1975 0.002 0.000 1976 0.001 0.000 1977 0.000 0.000 1978 0.001 0.000 1979 0.001 0.000 1980 0.003 0.000 1981 0.001 0.000 1982 0.002 0.000 1983 0.002 0.000 1984 0.001 0.000 1985 0.001 0.000 1986 0.003 0.000 1987 0.003 0.000 1988 0.001 0.000 1989 0.001 0.000 1990 0.006 0.000 1991 0.003 0.000 1992 0.001 0.000 1993 0.001 0.000 1994 0.000 0.000 1995 0.002 0.000 1996 0.005 0.000 1997 0.003 0.000 1998 0.001 0.000 1999 0.004 0.000 2000 0.001 0.000 2001 0.000 0.000 2002 0.002 0.000 2003 0.002 0.000 2004 0.003 0.003 2005 0.002 0.000 2006 0.002 0.000 2007 0.005 0.000 2008 0.006 0.000 2009 0.003 0.000 Ranked Annual Peaks Ranked Annual Peaks for Predeveloped and Mitigated. POC #1 Rank Predeveloped Mitigated 1 0.0065 0.0028 2 0.0060 0.0000 3 0.0049 0.0000 default[57]10/10/2023 8:27:44 AM Page 11 4 0.0045 0.0000 5 0.0039 0.0000 6 0.0038 0.0000 7 0.0035 0.0000 8 0.0035 0.0000 9 0.0034 0.0000 10 0.0031 0.0000 11 0.0030 0.0000 12 0.0028 0.0000 13 0.0027 0.0000 14 0.0027 0.0000 15 0.0027 0.0000 16 0.0025 0.0000 17 0.0024 0.0000 18 0.0024 0.0000 19 0.0024 0.0000 20 0.0023 0.0000 21 0.0021 0.0000 22 0.0021 0.0000 23 0.0020 0.0000 24 0.0020 0.0000 25 0.0020 0.0000 26 0.0019 0.0000 27 0.0019 0.0000 28 0.0018 0.0000 29 0.0018 0.0000 30 0.0016 0.0000 31 0.0016 0.0000 32 0.0015 0.0000 33 0.0015 0.0000 34 0.0015 0.0000 35 0.0015 0.0000 36 0.0015 0.0000 37 0.0015 0.0000 38 0.0014 0.0000 39 0.0014 0.0000 40 0.0014 0.0000 41 0.0014 0.0000 42 0.0014 0.0000 43 0.0013 0.0000 44 0.0013 0.0000 45 0.0012 0.0000 46 0.0012 0.0000 47 0.0012 0.0000 48 0.0012 0.0000 49 0.0012 0.0000 50 0.0011 0.0000 51 0.0011 0.0000 52 0.0011 0.0000 53 0.0010 0.0000 54 0.0009 0.0000 55 0.0009 0.0000 56 0.0007 0.0000 57 0.0007 0.0000 58 0.0007 0.0000 59 0.0005 0.0000 60 0.0002 0.0000 61 0.0002 0.0000 default[57]10/10/2023 8:27:44 AM Page 12 default[57]10/10/2023 8:27:44 AM Page 13 Duration Flows The Facility PASSED Flow(cfs)Predev Mit Percentage Pass/Fail 0.0009 17085 2 0 Pass 0.0009 15488 2 0 Pass 0.0010 14065 2 0 Pass 0.0010 12788 2 0 Pass 0.0011 11582 2 0 Pass 0.0011 10528 2 0 Pass 0.0012 9574 2 0 Pass 0.0012 8754 2 0 Pass 0.0012 8036 2 0 Pass 0.0013 7347 2 0 Pass 0.0013 6731 2 0 Pass 0.0014 6186 2 0 Pass 0.0014 5739 2 0 Pass 0.0015 5313 2 0 Pass 0.0015 4924 2 0 Pass 0.0015 4569 2 0 Pass 0.0016 4237 2 0 Pass 0.0016 3951 2 0 Pass 0.0017 3643 2 0 Pass 0.0017 3388 2 0 Pass 0.0018 3133 2 0 Pass 0.0018 2917 2 0 Pass 0.0018 2706 2 0 Pass 0.0019 2490 2 0 Pass 0.0019 2314 2 0 Pass 0.0020 2136 2 0 Pass 0.0020 1972 2 0 Pass 0.0021 1822 2 0 Pass 0.0021 1705 2 0 Pass 0.0021 1578 2 0 Pass 0.0022 1443 2 0 Pass 0.0022 1325 2 0 Pass 0.0023 1232 2 0 Pass 0.0023 1147 2 0 Pass 0.0024 1083 2 0 Pass 0.0024 1020 2 0 Pass 0.0024 948 2 0 Pass 0.0025 887 2 0 Pass 0.0025 825 2 0 Pass 0.0026 760 2 0 Pass 0.0026 725 2 0 Pass 0.0027 674 2 0 Pass 0.0027 623 2 0 Pass 0.0027 589 2 0 Pass 0.0028 549 2 0 Pass 0.0028 506 2 0 Pass 0.0029 469 0 0 Pass 0.0029 427 0 0 Pass 0.0030 388 0 0 Pass 0.0030 356 0 0 Pass 0.0030 328 0 0 Pass 0.0031 297 0 0 Pass 0.0031 270 0 0 Pass default[57]10/10/2023 8:27:44 AM Page 14 0.0032 241 0 0 Pass 0.0032 218 0 0 Pass 0.0033 198 0 0 Pass 0.0033 173 0 0 Pass 0.0033 152 0 0 Pass 0.0034 130 0 0 Pass 0.0034 119 0 0 Pass 0.0035 104 0 0 Pass 0.0035 95 0 0 Pass 0.0036 83 0 0 Pass 0.0036 74 0 0 Pass 0.0036 69 0 0 Pass 0.0037 61 0 0 Pass 0.0037 53 0 0 Pass 0.0038 46 0 0 Pass 0.0038 39 0 0 Pass 0.0039 29 0 0 Pass 0.0039 25 0 0 Pass 0.0039 22 0 0 Pass 0.0040 20 0 0 Pass 0.0040 17 0 0 Pass 0.0041 14 0 0 Pass 0.0041 12 0 0 Pass 0.0042 8 0 0 Pass 0.0042 7 0 0 Pass 0.0042 7 0 0 Pass 0.0043 7 0 0 Pass 0.0043 6 0 0 Pass 0.0044 6 0 0 Pass 0.0044 6 0 0 Pass 0.0045 6 0 0 Pass 0.0045 6 0 0 Pass 0.0045 5 0 0 Pass 0.0046 5 0 0 Pass 0.0046 5 0 0 Pass 0.0047 5 0 0 Pass 0.0047 5 0 0 Pass 0.0048 5 0 0 Pass 0.0048 5 0 0 Pass 0.0048 4 0 0 Pass 0.0049 4 0 0 Pass 0.0049 3 0 0 Pass 0.0050 3 0 0 Pass 0.0050 3 0 0 Pass 0.0051 3 0 0 Pass 0.0051 3 0 0 Pass 0.0051 3 0 0 Pass default[57]10/10/2023 8:27:44 AM Page 15 Water Quality Water Quality BMP Flow and Volume for POC #1 On-line facility volume:0 acre-feet On-line facility target flow:0 cfs. Adjusted for 15 min:0 cfs. Off-line facility target flow:0 cfs. Adjusted for 15 min:0 cfs. default[57]10/10/2023 8:27:44 AM Page 16 LID Report default[57]10/10/2023 8:27:51 AM Page 17 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. default[57]10/10/2023 8:27:51 AM Page 18 Appendix Predeveloped Schematic default[57]10/10/2023 8:27:52 AM Page 19 Mitigated Schematic default[57]10/10/2023 8:27:52 AM Page 20 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 default[57].wdm MESSU 25 Predefault[57].MES 27 Predefault[57].L61 28 Predefault[57].L62 30 POCdefault[57]1.dat END FILES OPN SEQUENCE INGRP INDELT 00:15 PERLND 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 *** 11 C, Forest, Mod 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 *** 11 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 ********* 11 0 0 4 0 0 0 0 0 0 0 0 0 1 9 END PRINT-INFO default[57]10/10/2023 8:27:52 AM Page 21 PWAT-PARM1 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** 11 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 11 0 4.5 0.08 400 0.1 0.5 0.996 END PWAT-PARM2 PWAT-PARM3 <PLS > PWATER input info: Part 3 *** # - # ***PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP 11 0 0 2 2 0 0 0 END PWAT-PARM3 PWAT-PARM4 <PLS > PWATER input info: Part 4 *** # - # CEPSC UZSN NSUR INTFW IRC LZETP *** 11 0.2 0.5 0.35 6 0.5 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 11 0 0 0 0 2.5 1 0 END PWAT-STATE1 END PERLND IMPLND GEN-INFO <PLS ><-------Name-------> Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** END GEN-INFO *** Section IWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW IWAT SLD IWG IQAL *** END ACTIVITY PRINT-INFO <ILS > ******** Print-flags ******** PIVL PYR # - # ATMP SNOW IWAT SLD IWG IQAL ********* END PRINT-INFO IWAT-PARM1 <PLS > IWATER variable monthly parameter value flags *** # - # CSNO RTOP VRS VNN RTLI *** END IWAT-PARM1 IWAT-PARM2 <PLS > IWATER input info: Part 2 *** # - # *** LSUR SLSUR NSUR RETSC END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS END IWAT-STATE1 default[57]10/10/2023 8:27:52 AM Page 22 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Basin 1*** PERLND 11 0.06 COPY 501 12 PERLND 11 0.06 COPY 501 13 ******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 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 default[57]10/10/2023 8:27:52 AM Page 23 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 END MASS-LINK END RUN default[57]10/10/2023 8:27:52 AM Page 24 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 default[57].wdm MESSU 25 Mitdefault[57].MES 27 Mitdefault[57].L61 28 Mitdefault[57].L62 30 POCdefault[57]1.dat END FILES OPN SEQUENCE INGRP INDELT 00:15 IMPLND 4 RCHRES 1 COPY 1 COPY 501 DISPLY 1 END INGRP END OPN SEQUENCE DISPLY DISPLY-INFO1 # - #<----------Title----------->***TRAN PIVL DIG1 FIL1 PYR DIG2 FIL2 YRND 1 Gravel Trench Bed 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 *** END GEN-INFO *** Section PWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC *** END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ***************************** PIVL PYR # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC ********* END PRINT-INFO PWAT-PARM1 default[57]10/10/2023 8:27:52 AM Page 25 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** END PWAT-PARM1 PWAT-PARM2 <PLS > PWATER input info: Part 2 *** # - # ***FOREST LZSN INFILT LSUR SLSUR KVARY AGWRC END PWAT-PARM2 PWAT-PARM3 <PLS > PWATER input info: Part 3 *** # - # ***PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP END PWAT-PARM3 PWAT-PARM4 <PLS > PWATER input info: Part 4 *** # - # CEPSC UZSN NSUR INTFW IRC LZETP *** 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 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 END GEN-INFO *** Section IWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW IWAT SLD IWG IQAL *** 4 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 END PRINT-INFO IWAT-PARM1 <PLS > IWATER variable monthly parameter value flags *** # - # CSNO RTOP VRS VNN RTLI *** 4 0 0 0 0 0 END IWAT-PARM1 IWAT-PARM2 <PLS > IWATER input info: Part 2 *** # - # *** LSUR SLSUR NSUR RETSC 4 400 0.01 0.1 0.1 END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN 4 0 0 END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS 4 0 0 END IWAT-STATE1 default[57]10/10/2023 8:27:52 AM Page 26 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Basin 1*** IMPLND 4 0.06 RCHRES 1 5 ******Routing****** IMPLND 4 0.06 COPY 1 15 RCHRES 1 1 COPY 501 17 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 *** 1 Gravel Trench Be-005 2 1 1 1 28 0 1 END GEN-INFO *** Section RCHRES*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # HYFG ADFG CNFG HTFG SDFG GQFG OXFG NUFG PKFG PHFG *** 1 1 0 0 0 0 0 0 0 0 0 END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ******************* PIVL PYR # - # HYDR ADCA CONS HEAT SED GQL OXRX NUTR PLNK PHCB PIVL PYR ********* 1 4 0 0 0 0 0 0 0 0 0 1 9 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 * * * * * * * * * * * * * * *** 1 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 END HYDR-PARM1 HYDR-PARM2 # - # FTABNO LEN DELTH STCOR KS DB50 *** <------><--------><--------><--------><--------><--------><--------> *** 1 1 0.02 0.0 0.0 0.5 0.0 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 <------><--------> <---><---><---><---><---> *** <---><---><---><---><---> 1 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 END HYDR-INIT END RCHRES SPEC-ACTIONS END SPEC-ACTIONS default[57]10/10/2023 8:27:52 AM Page 27 FTABLES FTABLE 1 92 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.010746 0.000000 0.000000 0.000000 0.016667 0.010746 0.000059 0.000000 0.015170 0.033333 0.010747 0.000118 0.000000 0.015171 0.050000 0.010748 0.000177 0.000000 0.015173 0.066667 0.010749 0.000236 0.000000 0.015174 0.083333 0.010749 0.000296 0.000000 0.015175 0.100000 0.010750 0.000355 0.000000 0.015176 0.116667 0.010751 0.000414 0.000000 0.015177 0.133333 0.010752 0.000473 0.000000 0.015178 0.150000 0.010752 0.000532 0.000000 0.015179 0.166667 0.010753 0.000591 0.000000 0.015180 0.183333 0.010754 0.000650 0.000000 0.015181 0.200000 0.010755 0.000710 0.000000 0.015182 0.216667 0.010755 0.000769 0.000000 0.015183 0.233333 0.010756 0.000828 0.000000 0.015184 0.250000 0.010757 0.000887 0.000000 0.015185 0.266667 0.010758 0.000946 0.000000 0.015186 0.283333 0.010758 0.001005 0.000000 0.015187 0.300000 0.010759 0.001064 0.000000 0.015188 0.316667 0.010760 0.001124 0.000000 0.015189 0.333333 0.010761 0.001183 0.000000 0.015190 0.350000 0.010761 0.001242 0.000000 0.015191 0.366667 0.010762 0.001301 0.000000 0.015192 0.383333 0.010763 0.001360 0.000000 0.015193 0.400000 0.010764 0.001420 0.000000 0.015195 0.416667 0.010764 0.001479 0.000000 0.015196 0.433333 0.010765 0.001538 0.000000 0.015197 0.450000 0.010766 0.001597 0.000000 0.015198 0.466667 0.010767 0.001656 0.000000 0.015199 0.483333 0.010767 0.001716 0.000000 0.015200 0.500000 0.010768 0.001775 0.000000 0.015201 0.516667 0.010769 0.001834 0.000000 0.015202 0.533333 0.010769 0.001893 0.000000 0.015203 0.550000 0.010770 0.001953 0.000000 0.015204 0.566667 0.010771 0.002012 0.000000 0.015205 0.583333 0.010772 0.002071 0.000000 0.015206 0.600000 0.010772 0.002130 0.000000 0.015207 0.616667 0.010773 0.002190 0.000000 0.015208 0.633333 0.010774 0.002249 0.000000 0.015209 0.650000 0.010775 0.002308 0.000000 0.015210 0.666667 0.010775 0.002367 0.000000 0.015211 0.683333 0.010776 0.002427 0.000000 0.015212 0.700000 0.010777 0.002486 0.000000 0.015213 0.716667 0.010778 0.002545 0.000000 0.015214 0.733333 0.010778 0.002604 0.000000 0.015215 0.750000 0.010779 0.002664 0.000000 0.015217 0.766667 0.010780 0.002723 0.000000 0.015218 0.783333 0.010781 0.002782 0.000000 0.015219 0.800000 0.010781 0.002842 0.000000 0.015220 0.816667 0.010782 0.002901 0.000000 0.015221 0.833333 0.010783 0.002960 0.000000 0.015222 0.850000 0.010784 0.003019 0.000000 0.015223 0.866667 0.010784 0.003079 0.000000 0.015224 0.883333 0.010785 0.003138 0.000000 0.015225 0.900000 0.010786 0.003197 0.000000 0.015226 0.916667 0.010787 0.003257 0.000000 0.015227 0.933333 0.010787 0.003316 0.000000 0.015228 0.950000 0.010788 0.003375 0.000000 0.015229 0.966667 0.010789 0.003435 0.000000 0.015230 0.983333 0.010789 0.003494 0.000000 0.015231 1.000000 0.010790 0.003553 0.000000 0.015232 1.016667 0.010791 0.003613 0.000000 0.015233 1.033333 0.010792 0.003672 0.000000 0.015234 1.050000 0.010792 0.003731 0.000000 0.015235 1.066667 0.010793 0.003791 0.000000 0.015236 default[57]10/10/2023 8:27:52 AM Page 28 1.083333 0.010794 0.003850 0.000000 0.015237 1.100000 0.010795 0.003910 0.000000 0.015239 1.116667 0.010795 0.003969 0.000000 0.015240 1.133333 0.010796 0.004028 0.000000 0.015241 1.150000 0.010797 0.004088 0.000000 0.015242 1.166667 0.010798 0.004147 0.000000 0.015243 1.183333 0.010798 0.004206 0.000000 0.015244 1.200000 0.010799 0.004266 0.000000 0.015245 1.216667 0.010800 0.004325 0.000000 0.015246 1.233333 0.010801 0.004385 0.000000 0.015247 1.250000 0.010801 0.004444 0.000000 0.015248 1.266667 0.010802 0.004503 0.000000 0.015249 1.283333 0.010803 0.004563 0.000000 0.015250 1.300000 0.010804 0.004622 0.000000 0.015251 1.316667 0.010804 0.004682 0.000000 0.015252 1.333333 0.010805 0.004741 0.000000 0.015253 1.350000 0.010806 0.004801 0.000000 0.015254 1.366667 0.010807 0.004860 0.000000 0.015255 1.383333 0.010807 0.004919 0.000000 0.015256 1.400000 0.010808 0.004979 0.000000 0.015257 1.416667 0.010809 0.005038 0.011409 0.015258 1.433333 0.010810 0.005098 0.032215 0.015259 1.450000 0.010810 0.005157 0.058959 0.015260 1.466667 0.010811 0.005217 0.090096 0.015262 1.483333 0.010812 0.005276 0.124350 0.015263 1.500000 0.010812 0.005336 0.160456 0.015264 1.516667 0.010813 0.005516 0.197112 0.015265 END FTABLE 1 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*** RCHRES 1 HYDR RO 1 1 1 WDM 1000 FLOW ENGL REPL RCHRES 1 HYDR O 1 1 1 WDM 1001 FLOW ENGL REPL RCHRES 1 HYDR O 2 1 1 WDM 1002 FLOW ENGL REPL RCHRES 1 HYDR STAGE 1 1 1 WDM 1003 STAG ENGL REPL 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 5 IMPLND IWATER SURO 0.083333 RCHRES INFLOW IVOL END MASS-LINK 5 MASS-LINK 15 IMPLND IWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 15 MASS-LINK 17 RCHRES OFLOW OVOL 1 COPY INPUT MEAN END MASS-LINK 17 END MASS-LINK END RUN default[57]10/10/2023 8:27:52 AM Page 29 default[57]10/10/2023 8:27:52 AM Page 30 Predeveloped HSPF Message File default[57]10/10/2023 8:27:52 AM Page 31 Mitigated HSPF Message File default[57]10/10/2023 8:27:52 AM Page 32 Disclaimer Legal Notice This program and accompanying documentation are provided 'as-is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by End User. Clear Creek Solutions Inc. and the governmental licensee or sublicensees disclaim all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall Clear Creek Solutions Inc. be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the use of, or inability to use this program even if Clear Creek Solutions Inc. or their authorized representatives have been advised of the possibility of such damages. Software Copyright © by : Clear Creek Solutions, Inc. 2005-2023; All Rights Reserved. Clear Creek Solutions, Inc. 6200 Capitol Blvd. Ste F Olympia, WA. 98501 Toll Free 1(866)943-0304 Local (360)943-0304 www.clearcreeksolutions.com WWHM2012 PROJECT REPORT LOT 1 TRENCH #2 default[8]11/14/2023 4:51:23 PM Page 2 General Model Information Project Name:default[8] Site Name: Site Address: City: Report Date:11/14/2023 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 default[8]11/14/2023 4:51:23 PM Page 3 Landuse Basin Data Predeveloped Land Use Basin 1 Bypass:No GroundWater:No Pervious Land Use acre C, Forest, Mod 0.015 Pervious Total 0.015 Impervious Land Use acre Impervious Total 0 Basin Total 0.015 Element Flows To: Surface Interflow Groundwater default[8]11/14/2023 4:51:23 PM Page 4 Mitigated Land Use Basin 1 Bypass:No GroundWater:No Pervious Land Use acre Pervious Total 0 Impervious Land Use acre ROOF TOPS FLAT 0.015 Impervious Total 0.015 Basin Total 0.015 Element Flows To: Surface Interflow Groundwater Gravel Trench Bed 1 Gravel Trench Bed 1 default[8]11/14/2023 4:51:23 PM Page 5 Routing Elements Predeveloped Routing default[8]11/14/2023 4:51:23 PM Page 6 Mitigated Routing Gravel Trench Bed 1 Bottom Length:21.86 ft. Bottom Width:4.75 ft. Trench bottom slope 1:0.1 To 1 Trench Left side slope 0:0.1 To 1 Trench right side slope 2:0.1 To 1 Material thickness of first layer:1.5 Pour Space of material for first layer:0.33 Material thickness of second layer:0 Pour Space of material for second layer:0 Material thickness of third layer:0 Pour Space of material for third layer:0 Infiltration On Infiltration rate:1.4 Infiltration safety factor:1 Wetted surface area On Total Volume Infiltrated (ac-ft.):2.248 Total Volume Through Riser (ac-ft.):0 Total Volume Through Facility (ac-ft.):2.248 Percent Infiltrated:100 Total Precip Applied to Facility:0 Total Evap From Facility:0 Discharge Structure Riser Height:1.4 ft. Riser Diameter:6 in. Element Flows To: Outlet 1 Outlet 2 Gravel Trench Bed Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)Infilt(cfs) 0.0000 0.002 0.000 0.000 0.000 0.0167 0.002 0.000 0.000 0.003 0.0333 0.002 0.000 0.000 0.003 0.0500 0.002 0.000 0.000 0.003 0.0667 0.002 0.000 0.000 0.003 0.0833 0.002 0.000 0.000 0.003 0.1000 0.002 0.000 0.000 0.003 0.1167 0.002 0.000 0.000 0.003 0.1333 0.002 0.000 0.000 0.003 0.1500 0.002 0.000 0.000 0.003 0.1667 0.002 0.000 0.000 0.003 0.1833 0.002 0.000 0.000 0.003 0.2000 0.002 0.000 0.000 0.003 0.2167 0.002 0.000 0.000 0.003 0.2333 0.002 0.000 0.000 0.003 0.2500 0.002 0.000 0.000 0.003 0.2667 0.002 0.000 0.000 0.003 0.2833 0.002 0.000 0.000 0.003 0.3000 0.002 0.000 0.000 0.003 0.3167 0.002 0.000 0.000 0.003 0.3333 0.002 0.000 0.000 0.003 0.3500 0.002 0.000 0.000 0.003 0.3667 0.002 0.000 0.000 0.003 default[8]11/14/2023 4:51:23 PM Page 7 0.3833 0.002 0.000 0.000 0.003 0.4000 0.002 0.000 0.000 0.003 0.4167 0.002 0.000 0.000 0.003 0.4333 0.002 0.000 0.000 0.003 0.4500 0.002 0.000 0.000 0.003 0.4667 0.002 0.000 0.000 0.003 0.4833 0.002 0.000 0.000 0.003 0.5000 0.002 0.000 0.000 0.003 0.5167 0.002 0.000 0.000 0.003 0.5333 0.002 0.000 0.000 0.003 0.5500 0.002 0.000 0.000 0.003 0.5667 0.002 0.000 0.000 0.003 0.5833 0.002 0.000 0.000 0.003 0.6000 0.002 0.000 0.000 0.003 0.6167 0.002 0.000 0.000 0.003 0.6333 0.002 0.000 0.000 0.003 0.6500 0.002 0.000 0.000 0.003 0.6667 0.002 0.000 0.000 0.003 0.6833 0.002 0.000 0.000 0.003 0.7000 0.002 0.000 0.000 0.003 0.7167 0.002 0.000 0.000 0.003 0.7333 0.002 0.000 0.000 0.003 0.7500 0.002 0.000 0.000 0.003 0.7667 0.002 0.000 0.000 0.003 0.7833 0.002 0.000 0.000 0.003 0.8000 0.002 0.000 0.000 0.003 0.8167 0.002 0.000 0.000 0.003 0.8333 0.002 0.000 0.000 0.003 0.8500 0.002 0.000 0.000 0.003 0.8667 0.002 0.000 0.000 0.003 0.8833 0.002 0.000 0.000 0.003 0.9000 0.002 0.000 0.000 0.003 0.9167 0.002 0.000 0.000 0.003 0.9333 0.002 0.000 0.000 0.003 0.9500 0.002 0.000 0.000 0.003 0.9667 0.002 0.000 0.000 0.003 0.9833 0.002 0.000 0.000 0.003 1.0000 0.002 0.000 0.000 0.003 1.0167 0.002 0.000 0.000 0.003 1.0333 0.002 0.000 0.000 0.003 1.0500 0.002 0.000 0.000 0.003 1.0667 0.002 0.000 0.000 0.003 1.0833 0.002 0.000 0.000 0.003 1.1000 0.002 0.000 0.000 0.003 1.1167 0.002 0.000 0.000 0.003 1.1333 0.002 0.000 0.000 0.003 1.1500 0.002 0.000 0.000 0.003 1.1667 0.002 0.000 0.000 0.003 1.1833 0.002 0.001 0.000 0.003 1.2000 0.002 0.001 0.000 0.003 1.2167 0.002 0.001 0.000 0.003 1.2333 0.002 0.001 0.000 0.003 1.2500 0.002 0.001 0.000 0.003 1.2667 0.002 0.001 0.000 0.003 1.2833 0.002 0.001 0.000 0.003 1.3000 0.002 0.001 0.000 0.003 1.3167 0.002 0.001 0.000 0.003 1.3333 0.002 0.001 0.000 0.003 default[8]11/14/2023 4:51:23 PM Page 8 1.3500 0.002 0.001 0.000 0.003 1.3667 0.002 0.001 0.000 0.003 1.3833 0.002 0.001 0.000 0.003 1.4000 0.002 0.001 0.000 0.003 1.4167 0.002 0.001 0.011 0.003 1.4333 0.002 0.001 0.032 0.003 1.4500 0.002 0.001 0.059 0.003 1.4667 0.002 0.001 0.090 0.003 1.4833 0.002 0.001 0.124 0.003 1.5000 0.002 0.001 0.160 0.003 default[8]11/14/2023 4:51:23 PM Page 9 Analysis Results POC 1 + Predeveloped x Mitigated Predeveloped Landuse Totals for POC #1 Total Pervious Area:0.015 Total Impervious Area:0 Mitigated Landuse Totals for POC #1 Total Pervious Area:0 Total Impervious Area:0.015 Flow Frequency Method:Log Pearson Type III 17B Flow Frequency Return Periods for Predeveloped. POC #1 Return Period Flow(cfs) 2 year 0.000447 5 year 0.000732 10 year 0.000915 25 year 0.001133 50 year 0.001284 100 year 0.001426 Flow Frequency Return Periods for Mitigated. POC #1 Return Period Flow(cfs) 2 year 0 5 year 0 10 year 0 25 year 0 50 year 0 100 year 0 Annual Peaks Annual Peaks for Predeveloped and Mitigated. POC #1 Year Predeveloped Mitigated 1949 0.001 0.000 1950 0.001 0.000 1951 0.001 0.000 1952 0.000 0.000 1953 0.000 0.000 1954 0.000 0.000 1955 0.001 0.000 1956 0.000 0.000 1957 0.000 0.000 1958 0.000 0.000 default[8]11/14/2023 4:51:57 PM Page 10 1959 0.000 0.000 1960 0.001 0.000 1961 0.000 0.000 1962 0.000 0.000 1963 0.000 0.000 1964 0.000 0.000 1965 0.000 0.000 1966 0.000 0.000 1967 0.001 0.000 1968 0.000 0.000 1969 0.000 0.000 1970 0.000 0.000 1971 0.000 0.000 1972 0.001 0.000 1973 0.000 0.000 1974 0.000 0.000 1975 0.001 0.000 1976 0.000 0.000 1977 0.000 0.000 1978 0.000 0.000 1979 0.000 0.000 1980 0.001 0.000 1981 0.000 0.000 1982 0.001 0.000 1983 0.000 0.000 1984 0.000 0.000 1985 0.000 0.000 1986 0.001 0.000 1987 0.001 0.000 1988 0.000 0.000 1989 0.000 0.000 1990 0.002 0.000 1991 0.001 0.000 1992 0.000 0.000 1993 0.000 0.000 1994 0.000 0.000 1995 0.000 0.000 1996 0.001 0.000 1997 0.001 0.000 1998 0.000 0.000 1999 0.001 0.000 2000 0.000 0.000 2001 0.000 0.000 2002 0.000 0.000 2003 0.001 0.000 2004 0.001 0.004 2005 0.000 0.000 2006 0.001 0.000 2007 0.001 0.000 2008 0.001 0.000 2009 0.001 0.000 Ranked Annual Peaks Ranked Annual Peaks for Predeveloped and Mitigated. POC #1 Rank Predeveloped Mitigated 1 0.0016 0.0036 2 0.0015 0.0000 3 0.0012 0.0000 default[8]11/14/2023 4:51:57 PM Page 11 4 0.0011 0.0000 5 0.0010 0.0000 6 0.0010 0.0000 7 0.0009 0.0000 8 0.0009 0.0000 9 0.0009 0.0000 10 0.0008 0.0000 11 0.0007 0.0000 12 0.0007 0.0000 13 0.0007 0.0000 14 0.0007 0.0000 15 0.0007 0.0000 16 0.0006 0.0000 17 0.0006 0.0000 18 0.0006 0.0000 19 0.0006 0.0000 20 0.0006 0.0000 21 0.0005 0.0000 22 0.0005 0.0000 23 0.0005 0.0000 24 0.0005 0.0000 25 0.0005 0.0000 26 0.0005 0.0000 27 0.0005 0.0000 28 0.0004 0.0000 29 0.0004 0.0000 30 0.0004 0.0000 31 0.0004 0.0000 32 0.0004 0.0000 33 0.0004 0.0000 34 0.0004 0.0000 35 0.0004 0.0000 36 0.0004 0.0000 37 0.0004 0.0000 38 0.0004 0.0000 39 0.0004 0.0000 40 0.0003 0.0000 41 0.0003 0.0000 42 0.0003 0.0000 43 0.0003 0.0000 44 0.0003 0.0000 45 0.0003 0.0000 46 0.0003 0.0000 47 0.0003 0.0000 48 0.0003 0.0000 49 0.0003 0.0000 50 0.0003 0.0000 51 0.0003 0.0000 52 0.0003 0.0000 53 0.0002 0.0000 54 0.0002 0.0000 55 0.0002 0.0000 56 0.0002 0.0000 57 0.0002 0.0000 58 0.0002 0.0000 59 0.0001 0.0000 60 0.0001 0.0000 61 0.0001 0.0000 default[8]11/14/2023 4:51:57 PM Page 12 default[8]11/14/2023 4:51:57 PM Page 13 Duration Flows Flow(cfs)Predev Mit Percentage Pass/Fail 0.0002 17139 10 0 Pass 0.0002 15488 10 0 Pass 0.0002 14140 10 0 Pass 0.0003 12838 10 0 Pass 0.0003 11582 10 0 Pass 0.0003 10500 10 0 Pass 0.0003 9625 10 0 Pass 0.0003 8778 10 0 Pass 0.0003 8036 10 0 Pass 0.0003 7392 10 0 Pass 0.0003 6759 10 0 Pass 0.0003 6194 10 0 Pass 0.0004 5722 10 0 Pass 0.0004 5330 10 0 Pass 0.0004 4934 10 0 Pass 0.0004 4569 10 0 Pass 0.0004 4261 10 0 Pass 0.0004 3961 10 0 Pass 0.0004 3645 10 0 Pass 0.0004 3388 10 0 Pass 0.0004 3148 10 0 Pass 0.0004 2924 10 0 Pass 0.0005 2706 10 0 Pass 0.0005 2502 10 0 Pass 0.0005 2327 10 0 Pass 0.0005 2137 10 0 Pass 0.0005 1972 10 0 Pass 0.0005 1833 10 0 Pass 0.0005 1706 10 0 Pass 0.0005 1578 10 0 Pass 0.0005 1449 10 0 Pass 0.0006 1331 10 0 Pass 0.0006 1235 10 0 Pass 0.0006 1147 10 0 Pass 0.0006 1087 10 0 Pass 0.0006 1022 10 0 Pass 0.0006 948 10 1 Pass 0.0006 890 10 1 Pass 0.0006 829 10 1 Pass 0.0006 764 10 1 Pass 0.0007 726 10 1 Pass 0.0007 677 10 1 Pass 0.0007 627 10 1 Pass 0.0007 589 10 1 Pass 0.0007 555 10 1 Pass 0.0007 507 10 1 Pass 0.0007 470 10 2 Pass 0.0007 429 10 2 Pass 0.0007 389 10 2 Pass 0.0007 356 10 2 Pass 0.0008 328 10 3 Pass 0.0008 299 10 3 Pass 0.0008 272 10 3 Pass 0.0008 242 10 4 Pass default[8]11/14/2023 4:51:57 PM Page 14 0.0008 220 10 4 Pass 0.0008 199 10 5 Pass 0.0008 176 10 5 Pass 0.0008 152 10 6 Pass 0.0008 132 10 7 Pass 0.0009 119 10 8 Pass 0.0009 104 10 9 Pass 0.0009 95 10 10 Pass 0.0009 84 10 11 Pass 0.0009 75 10 13 Pass 0.0009 69 10 14 Pass 0.0009 61 10 16 Pass 0.0009 54 10 18 Pass 0.0009 46 10 21 Pass 0.0010 39 10 25 Pass 0.0010 31 10 32 Pass 0.0010 25 10 40 Pass 0.0010 22 10 45 Pass 0.0010 20 10 50 Pass 0.0010 17 10 58 Pass 0.0010 14 10 71 Pass 0.0010 12 10 83 Pass 0.0010 10 10 100 Pass 0.0010 7 10 142 Fail 0.0011 7 10 142 Fail 0.0011 7 10 142 Fail 0.0011 6 10 166 Fail 0.0011 6 10 166 Fail 0.0011 6 10 166 Fail 0.0011 6 10 166 Fail 0.0011 6 9 150 Fail 0.0011 5 9 180 Fail 0.0011 5 9 180 Fail 0.0012 5 9 180 Fail 0.0012 5 9 180 Fail 0.0012 5 9 180 Fail 0.0012 5 9 180 Fail 0.0012 5 9 180 Fail 0.0012 4 9 225 Fail 0.0012 4 9 225 Fail 0.0012 3 9 300 Fail 0.0012 3 9 300 Fail 0.0013 3 9 300 Fail 0.0013 3 9 300 Fail 0.0013 3 9 300 Fail 0.0013 3 9 300 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. default[8]11/14/2023 4:51:57 PM Page 15 Water Quality Water Quality BMP Flow and Volume for POC #1 On-line facility volume:0 acre-feet On-line facility target flow:0 cfs. Adjusted for 15 min:0 cfs. Off-line facility target flow:0 cfs. Adjusted for 15 min:0 cfs. default[8]11/14/2023 4:51:57 PM Page 16 LID Report default[8]11/14/2023 4:52:03 PM Page 17 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. default[8]11/14/2023 4:52:03 PM Page 18 Appendix Predeveloped Schematic default[8]11/14/2023 4:52:04 PM Page 19 Mitigated Schematic default[8]11/14/2023 4:52:04 PM Page 20 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 default[8].wdm MESSU 25 Predefault[8].MES 27 Predefault[8].L61 28 Predefault[8].L62 30 POCdefault[8]1.dat END FILES OPN SEQUENCE INGRP INDELT 00:15 PERLND 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 *** 11 C, Forest, Mod 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 *** 11 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 ********* 11 0 0 4 0 0 0 0 0 0 0 0 0 1 9 END PRINT-INFO default[8]11/14/2023 4:52:04 PM Page 21 PWAT-PARM1 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** 11 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 11 0 4.5 0.08 400 0.1 0.5 0.996 END PWAT-PARM2 PWAT-PARM3 <PLS > PWATER input info: Part 3 *** # - # ***PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP 11 0 0 2 2 0 0 0 END PWAT-PARM3 PWAT-PARM4 <PLS > PWATER input info: Part 4 *** # - # CEPSC UZSN NSUR INTFW IRC LZETP *** 11 0.2 0.5 0.35 6 0.5 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 11 0 0 0 0 2.5 1 0 END PWAT-STATE1 END PERLND IMPLND GEN-INFO <PLS ><-------Name-------> Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** END GEN-INFO *** Section IWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW IWAT SLD IWG IQAL *** END ACTIVITY PRINT-INFO <ILS > ******** Print-flags ******** PIVL PYR # - # ATMP SNOW IWAT SLD IWG IQAL ********* END PRINT-INFO IWAT-PARM1 <PLS > IWATER variable monthly parameter value flags *** # - # CSNO RTOP VRS VNN RTLI *** END IWAT-PARM1 IWAT-PARM2 <PLS > IWATER input info: Part 2 *** # - # *** LSUR SLSUR NSUR RETSC END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS END IWAT-STATE1 default[8]11/14/2023 4:52:04 PM Page 22 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Basin 1*** PERLND 11 0.015 COPY 501 12 PERLND 11 0.015 COPY 501 13 ******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 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 default[8]11/14/2023 4:52:04 PM Page 23 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 END MASS-LINK END RUN default[8]11/14/2023 4:52:04 PM Page 24 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 default[8].wdm MESSU 25 Mitdefault[8].MES 27 Mitdefault[8].L61 28 Mitdefault[8].L62 30 POCdefault[8]1.dat END FILES OPN SEQUENCE INGRP INDELT 00:15 IMPLND 4 RCHRES 1 COPY 1 COPY 501 DISPLY 1 END INGRP END OPN SEQUENCE DISPLY DISPLY-INFO1 # - #<----------Title----------->***TRAN PIVL DIG1 FIL1 PYR DIG2 FIL2 YRND 1 Gravel Trench Bed 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 *** END GEN-INFO *** Section PWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC *** END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ***************************** PIVL PYR # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC ********* END PRINT-INFO PWAT-PARM1 default[8]11/14/2023 4:52:04 PM Page 25 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** END PWAT-PARM1 PWAT-PARM2 <PLS > PWATER input info: Part 2 *** # - # ***FOREST LZSN INFILT LSUR SLSUR KVARY AGWRC END PWAT-PARM2 PWAT-PARM3 <PLS > PWATER input info: Part 3 *** # - # ***PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP END PWAT-PARM3 PWAT-PARM4 <PLS > PWATER input info: Part 4 *** # - # CEPSC UZSN NSUR INTFW IRC LZETP *** 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 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 END GEN-INFO *** Section IWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW IWAT SLD IWG IQAL *** 4 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 END PRINT-INFO IWAT-PARM1 <PLS > IWATER variable monthly parameter value flags *** # - # CSNO RTOP VRS VNN RTLI *** 4 0 0 0 0 0 END IWAT-PARM1 IWAT-PARM2 <PLS > IWATER input info: Part 2 *** # - # *** LSUR SLSUR NSUR RETSC 4 400 0.01 0.1 0.1 END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN 4 0 0 END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS 4 0 0 END IWAT-STATE1 default[8]11/14/2023 4:52:04 PM Page 26 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Basin 1*** IMPLND 4 0.015 RCHRES 1 5 ******Routing****** IMPLND 4 0.015 COPY 1 15 RCHRES 1 1 COPY 501 17 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 *** 1 Gravel Trench Be-005 2 1 1 1 28 0 1 END GEN-INFO *** Section RCHRES*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # HYFG ADFG CNFG HTFG SDFG GQFG OXFG NUFG PKFG PHFG *** 1 1 0 0 0 0 0 0 0 0 0 END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ******************* PIVL PYR # - # HYDR ADCA CONS HEAT SED GQL OXRX NUTR PLNK PHCB PIVL PYR ********* 1 4 0 0 0 0 0 0 0 0 0 1 9 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 * * * * * * * * * * * * * * *** 1 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 END HYDR-PARM1 HYDR-PARM2 # - # FTABNO LEN DELTH STCOR KS DB50 *** <------><--------><--------><--------><--------><--------><--------> *** 1 1 0.01 0.0 0.0 0.5 0.0 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 <------><--------> <---><---><---><---><---> *** <---><---><---><---><---> 1 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 END HYDR-INIT END RCHRES SPEC-ACTIONS END SPEC-ACTIONS default[8]11/14/2023 4:52:04 PM Page 27 FTABLES FTABLE 1 92 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.002385 0.000000 0.000000 0.000000 0.016667 0.002387 0.000013 0.000000 0.003369 0.033333 0.002389 0.000026 0.000000 0.003372 0.050000 0.002391 0.000039 0.000000 0.003375 0.066667 0.002393 0.000053 0.000000 0.003378 0.083333 0.002395 0.000066 0.000000 0.003381 0.100000 0.002397 0.000079 0.000000 0.003384 0.116667 0.002399 0.000092 0.000000 0.003387 0.133333 0.002401 0.000105 0.000000 0.003389 0.150000 0.002403 0.000118 0.000000 0.003392 0.166667 0.002405 0.000132 0.000000 0.003395 0.183333 0.002407 0.000145 0.000000 0.003398 0.200000 0.002409 0.000158 0.000000 0.003401 0.216667 0.002411 0.000171 0.000000 0.003404 0.233333 0.002413 0.000185 0.000000 0.003407 0.250000 0.002415 0.000198 0.000000 0.003410 0.266667 0.002417 0.000211 0.000000 0.003413 0.283333 0.002419 0.000225 0.000000 0.003415 0.300000 0.002421 0.000238 0.000000 0.003418 0.316667 0.002423 0.000251 0.000000 0.003421 0.333333 0.002426 0.000265 0.000000 0.003424 0.350000 0.002428 0.000278 0.000000 0.003427 0.366667 0.002430 0.000291 0.000000 0.003430 0.383333 0.002432 0.000305 0.000000 0.003433 0.400000 0.002434 0.000318 0.000000 0.003436 0.416667 0.002436 0.000331 0.000000 0.003439 0.433333 0.002438 0.000345 0.000000 0.003441 0.450000 0.002440 0.000358 0.000000 0.003444 0.466667 0.002442 0.000372 0.000000 0.003447 0.483333 0.002444 0.000385 0.000000 0.003450 0.500000 0.002446 0.000399 0.000000 0.003453 0.516667 0.002448 0.000412 0.000000 0.003456 0.533333 0.002450 0.000425 0.000000 0.003459 0.550000 0.002452 0.000439 0.000000 0.003462 0.566667 0.002454 0.000452 0.000000 0.003465 0.583333 0.002456 0.000466 0.000000 0.003467 0.600000 0.002458 0.000479 0.000000 0.003470 0.616667 0.002460 0.000493 0.000000 0.003473 0.633333 0.002462 0.000507 0.000000 0.003476 0.650000 0.002465 0.000520 0.000000 0.003479 0.666667 0.002467 0.000534 0.000000 0.003482 0.683333 0.002469 0.000547 0.000000 0.003485 0.700000 0.002471 0.000561 0.000000 0.003488 0.716667 0.002473 0.000574 0.000000 0.003491 0.733333 0.002475 0.000588 0.000000 0.003494 0.750000 0.002477 0.000602 0.000000 0.003497 0.766667 0.002479 0.000615 0.000000 0.003499 0.783333 0.002481 0.000629 0.000000 0.003502 0.800000 0.002483 0.000643 0.000000 0.003505 0.816667 0.002485 0.000656 0.000000 0.003508 0.833333 0.002487 0.000670 0.000000 0.003511 0.850000 0.002489 0.000684 0.000000 0.003514 0.866667 0.002491 0.000697 0.000000 0.003517 0.883333 0.002493 0.000711 0.000000 0.003520 0.900000 0.002495 0.000725 0.000000 0.003523 0.916667 0.002497 0.000738 0.000000 0.003526 0.933333 0.002500 0.000752 0.000000 0.003529 0.950000 0.002502 0.000766 0.000000 0.003531 0.966667 0.002504 0.000780 0.000000 0.003534 0.983333 0.002506 0.000793 0.000000 0.003537 1.000000 0.002508 0.000807 0.000000 0.003540 1.016667 0.002510 0.000821 0.000000 0.003543 1.033333 0.002512 0.000835 0.000000 0.003546 1.050000 0.002514 0.000849 0.000000 0.003549 1.066667 0.002516 0.000862 0.000000 0.003552 default[8]11/14/2023 4:52:04 PM Page 28 1.083333 0.002518 0.000876 0.000000 0.003555 1.100000 0.002520 0.000890 0.000000 0.003558 1.116667 0.002522 0.000904 0.000000 0.003561 1.133333 0.002524 0.000918 0.000000 0.003564 1.150000 0.002526 0.000932 0.000000 0.003566 1.166667 0.002529 0.000946 0.000000 0.003569 1.183333 0.002531 0.000960 0.000000 0.003572 1.200000 0.002533 0.000974 0.000000 0.003575 1.216667 0.002535 0.000987 0.000000 0.003578 1.233333 0.002537 0.001001 0.000000 0.003581 1.250000 0.002539 0.001015 0.000000 0.003584 1.266667 0.002541 0.001029 0.000000 0.003587 1.283333 0.002543 0.001043 0.000000 0.003590 1.300000 0.002545 0.001057 0.000000 0.003593 1.316667 0.002547 0.001071 0.000000 0.003596 1.333333 0.002549 0.001085 0.000000 0.003599 1.350000 0.002551 0.001099 0.000000 0.003602 1.366667 0.002553 0.001113 0.000000 0.003605 1.383333 0.002555 0.001127 0.000000 0.003607 1.400000 0.002558 0.001142 0.000000 0.003610 1.416667 0.002560 0.001156 0.011409 0.003613 1.433333 0.002562 0.001170 0.032215 0.003616 1.450000 0.002564 0.001184 0.058959 0.003619 1.466667 0.002566 0.001198 0.090096 0.003622 1.483333 0.002568 0.001212 0.124350 0.003625 1.500000 0.002570 0.001226 0.160456 0.003628 1.516667 0.002572 0.001269 0.197112 0.003631 END FTABLE 1 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*** RCHRES 1 HYDR RO 1 1 1 WDM 1000 FLOW ENGL REPL RCHRES 1 HYDR O 1 1 1 WDM 1001 FLOW ENGL REPL RCHRES 1 HYDR O 2 1 1 WDM 1002 FLOW ENGL REPL RCHRES 1 HYDR STAGE 1 1 1 WDM 1003 STAG ENGL REPL 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 5 IMPLND IWATER SURO 0.083333 RCHRES INFLOW IVOL END MASS-LINK 5 MASS-LINK 15 IMPLND IWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 15 MASS-LINK 17 RCHRES OFLOW OVOL 1 COPY INPUT MEAN END MASS-LINK 17 END MASS-LINK END RUN default[8]11/14/2023 4:52:04 PM Page 29 default[8]11/14/2023 4:52:04 PM Page 30 Predeveloped HSPF Message File default[8]11/14/2023 4:52:04 PM Page 31 Mitigated HSPF Message File default[8]11/14/2023 4:52:04 PM Page 32 Disclaimer Legal Notice This program and accompanying documentation are provided 'as-is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by End User. Clear Creek Solutions Inc. and the governmental licensee or sublicensees disclaim all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall Clear Creek Solutions Inc. be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the use of, or inability to use this program even if Clear Creek Solutions Inc. or their authorized representatives have been advised of the possibility of such damages. Software Copyright © by : Clear Creek Solutions, Inc. 2005-2023; All Rights Reserved. Clear Creek Solutions, Inc. 6200 Capitol Blvd. Ste F Olympia, WA. 98501 Toll Free 1(866)943-0304 Local (360)943-0304 www.clearcreeksolutions.com WWHM2012 PROJECT REPORT LOT 2 TRENCH #3 RESULTS default[57]10/10/2023 9:06:23 AM Page 2 General Model Information Project Name:default[57] Site Name: Site Address: City: Report Date:10/10/2023 Gage:Seatac Data Start:1948/10/01 Data End:2009/09/30 Timestep:15 Minute Precip Scale:1.000 Version Date:2021/08/18 Version:4.2.18 POC Thresholds Low Flow Threshold for POC1:50 Percent of the 2 Year High Flow Threshold for POC1:50 Year default[57]10/10/2023 9:06:23 AM Page 3 Landuse Basin Data Predeveloped Land Use Basin 1 Bypass:No GroundWater:No Pervious Land Use acre C, Forest, Flat 0.071 Pervious Total 0.071 Impervious Land Use acre Impervious Total 0 Basin Total 0.071 Element Flows To: Surface Interflow Groundwater default[57]10/10/2023 9:06:23 AM Page 4 Mitigated Land Use Basin 1 Bypass:No GroundWater:No Pervious Land Use acre Pervious Total 0 Impervious Land Use acre ROOF TOPS FLAT 0.071 Impervious Total 0.071 Basin Total 0.071 Element Flows To: Surface Interflow Groundwater Gravel Trench Bed 1 Gravel Trench Bed 1 default[57]10/10/2023 9:06:23 AM Page 5 Routing Elements Predeveloped Routing default[57]10/10/2023 9:06:23 AM Page 6 Mitigated Routing Gravel Trench Bed 1 Bottom Length:111.94 ft. Bottom Width:5.00 ft. Trench bottom slope 1:0.01 To 1 Trench Left side slope 0:0.01 To 1 Trench right side slope 2:0.01 To 1 Material thickness of first layer:1.5 Pour Space of material for first layer:0.33 Material thickness of second layer:0 Pour Space of material for second layer:0 Material thickness of third layer:0 Pour Space of material for third layer:0 Infiltration On Infiltration rate:1.4 Infiltration safety factor:1 Wetted surface area On Total Volume Infiltrated (ac-ft.):11.031 Total Volume Through Riser (ac-ft.):0 Total Volume Through Facility (ac-ft.):11.031 Percent Infiltrated:100 Total Precip Applied to Facility:0 Total Evap From Facility:0 Discharge Structure Riser Height:1.4 ft. Riser Diameter:6 in. Element Flows To: Outlet 1 Outlet 2 Gravel Trench Bed Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)Infilt(cfs) 0.0000 0.012 0.000 0.000 0.000 0.0167 0.012 0.000 0.000 0.018 0.0333 0.012 0.000 0.000 0.018 0.0500 0.012 0.000 0.000 0.018 0.0667 0.012 0.000 0.000 0.018 0.0833 0.012 0.000 0.000 0.018 0.1000 0.012 0.000 0.000 0.018 0.1167 0.012 0.000 0.000 0.018 0.1333 0.012 0.000 0.000 0.018 0.1500 0.012 0.000 0.000 0.018 0.1667 0.012 0.000 0.000 0.018 0.1833 0.012 0.000 0.000 0.018 0.2000 0.012 0.000 0.000 0.018 0.2167 0.012 0.000 0.000 0.018 0.2333 0.012 0.001 0.000 0.018 0.2500 0.012 0.001 0.000 0.018 0.2667 0.012 0.001 0.000 0.018 0.2833 0.012 0.001 0.000 0.018 0.3000 0.012 0.001 0.000 0.018 0.3167 0.012 0.001 0.000 0.018 0.3333 0.012 0.001 0.000 0.018 0.3500 0.012 0.001 0.000 0.018 0.3667 0.012 0.001 0.000 0.018 default[57]10/10/2023 9:06:23 AM Page 7 0.3833 0.012 0.001 0.000 0.018 0.4000 0.012 0.001 0.000 0.018 0.4167 0.012 0.001 0.000 0.018 0.4333 0.012 0.001 0.000 0.018 0.4500 0.012 0.001 0.000 0.018 0.4667 0.012 0.002 0.000 0.018 0.4833 0.012 0.002 0.000 0.018 0.5000 0.012 0.002 0.000 0.018 0.5167 0.012 0.002 0.000 0.018 0.5333 0.012 0.002 0.000 0.018 0.5500 0.012 0.002 0.000 0.018 0.5667 0.012 0.002 0.000 0.018 0.5833 0.012 0.002 0.000 0.018 0.6000 0.012 0.002 0.000 0.018 0.6167 0.012 0.002 0.000 0.018 0.6333 0.012 0.002 0.000 0.018 0.6500 0.012 0.002 0.000 0.018 0.6667 0.012 0.002 0.000 0.018 0.6833 0.012 0.002 0.000 0.018 0.7000 0.012 0.003 0.000 0.018 0.7167 0.012 0.003 0.000 0.018 0.7333 0.012 0.003 0.000 0.018 0.7500 0.012 0.003 0.000 0.018 0.7667 0.012 0.003 0.000 0.018 0.7833 0.012 0.003 0.000 0.018 0.8000 0.012 0.003 0.000 0.018 0.8167 0.012 0.003 0.000 0.018 0.8333 0.012 0.003 0.000 0.018 0.8500 0.012 0.003 0.000 0.018 0.8667 0.012 0.003 0.000 0.018 0.8833 0.012 0.003 0.000 0.018 0.9000 0.012 0.003 0.000 0.018 0.9167 0.012 0.003 0.000 0.018 0.9333 0.012 0.004 0.000 0.018 0.9500 0.012 0.004 0.000 0.018 0.9667 0.012 0.004 0.000 0.018 0.9833 0.012 0.004 0.000 0.018 1.0000 0.012 0.004 0.000 0.018 1.0167 0.012 0.004 0.000 0.018 1.0333 0.012 0.004 0.000 0.018 1.0500 0.012 0.004 0.000 0.018 1.0667 0.012 0.004 0.000 0.018 1.0833 0.012 0.004 0.000 0.018 1.1000 0.012 0.004 0.000 0.018 1.1167 0.012 0.004 0.000 0.018 1.1333 0.012 0.004 0.000 0.018 1.1500 0.012 0.004 0.000 0.018 1.1667 0.012 0.005 0.000 0.018 1.1833 0.012 0.005 0.000 0.018 1.2000 0.012 0.005 0.000 0.018 1.2167 0.012 0.005 0.000 0.018 1.2333 0.012 0.005 0.000 0.018 1.2500 0.012 0.005 0.000 0.018 1.2667 0.012 0.005 0.000 0.018 1.2833 0.012 0.005 0.000 0.018 1.3000 0.012 0.005 0.000 0.018 1.3167 0.012 0.005 0.000 0.018 1.3333 0.012 0.005 0.000 0.018 default[57]10/10/2023 9:06:23 AM Page 8 1.3500 0.012 0.005 0.000 0.018 1.3667 0.012 0.005 0.000 0.018 1.3833 0.012 0.005 0.000 0.018 1.4000 0.012 0.006 0.000 0.018 1.4167 0.012 0.006 0.011 0.018 1.4333 0.012 0.006 0.032 0.018 1.4500 0.012 0.006 0.059 0.018 1.4667 0.012 0.006 0.090 0.018 1.4833 0.012 0.006 0.124 0.018 1.5000 0.012 0.006 0.160 0.018 default[57]10/10/2023 9:06:23 AM Page 9 Analysis Results POC 1 + Predeveloped x Mitigated Predeveloped Landuse Totals for POC #1 Total Pervious Area:0.071 Total Impervious Area:0 Mitigated Landuse Totals for POC #1 Total Pervious Area:0 Total Impervious Area:0.071 Flow Frequency Method:Log Pearson Type III 17B Flow Frequency Return Periods for Predeveloped. POC #1 Return Period Flow(cfs) 2 year 0.002087 5 year 0.003278 10 year 0.003953 25 year 0.004668 50 year 0.005111 100 year 0.005487 Flow Frequency Return Periods for Mitigated. POC #1 Return Period Flow(cfs) 2 year 0 5 year 0 10 year 0 25 year 0 50 year 0 100 year 0 Annual Peaks Annual Peaks for Predeveloped and Mitigated. POC #1 Year Predeveloped Mitigated 1949 0.002 0.000 1950 0.003 0.000 1951 0.005 0.000 1952 0.001 0.000 1953 0.001 0.000 1954 0.002 0.000 1955 0.003 0.000 1956 0.002 0.000 1957 0.002 0.000 1958 0.002 0.000 default[57]10/10/2023 9:06:55 AM Page 10 1959 0.002 0.000 1960 0.003 0.000 1961 0.002 0.000 1962 0.001 0.000 1963 0.001 0.000 1964 0.002 0.000 1965 0.001 0.000 1966 0.001 0.000 1967 0.003 0.000 1968 0.002 0.000 1969 0.002 0.000 1970 0.001 0.000 1971 0.002 0.000 1972 0.003 0.000 1973 0.002 0.000 1974 0.002 0.000 1975 0.002 0.000 1976 0.002 0.000 1977 0.000 0.000 1978 0.001 0.000 1979 0.001 0.000 1980 0.003 0.000 1981 0.001 0.000 1982 0.002 0.000 1983 0.002 0.000 1984 0.001 0.000 1985 0.001 0.000 1986 0.004 0.000 1987 0.003 0.000 1988 0.001 0.000 1989 0.001 0.000 1990 0.007 0.000 1991 0.004 0.000 1992 0.002 0.000 1993 0.002 0.000 1994 0.001 0.000 1995 0.002 0.000 1996 0.005 0.000 1997 0.004 0.000 1998 0.001 0.000 1999 0.004 0.000 2000 0.002 0.000 2001 0.000 0.000 2002 0.002 0.000 2003 0.002 0.000 2004 0.003 0.000 2005 0.002 0.000 2006 0.002 0.000 2007 0.005 0.000 2008 0.006 0.000 2009 0.003 0.000 Ranked Annual Peaks Ranked Annual Peaks for Predeveloped and Mitigated. POC #1 Rank Predeveloped Mitigated 1 0.0067 0.0000 2 0.0064 0.0000 3 0.0050 0.0000 default[57]10/10/2023 9:06:55 AM Page 11 4 0.0049 0.0000 5 0.0046 0.0000 6 0.0041 0.0000 7 0.0040 0.0000 8 0.0038 0.0000 9 0.0036 0.0000 10 0.0034 0.0000 11 0.0032 0.0000 12 0.0032 0.0000 13 0.0031 0.0000 14 0.0031 0.0000 15 0.0029 0.0000 16 0.0029 0.0000 17 0.0028 0.0000 18 0.0026 0.0000 19 0.0025 0.0000 20 0.0025 0.0000 21 0.0023 0.0000 22 0.0023 0.0000 23 0.0023 0.0000 24 0.0023 0.0000 25 0.0022 0.0000 26 0.0021 0.0000 27 0.0021 0.0000 28 0.0021 0.0000 29 0.0020 0.0000 30 0.0018 0.0000 31 0.0018 0.0000 32 0.0018 0.0000 33 0.0018 0.0000 34 0.0018 0.0000 35 0.0018 0.0000 36 0.0017 0.0000 37 0.0017 0.0000 38 0.0017 0.0000 39 0.0016 0.0000 40 0.0016 0.0000 41 0.0016 0.0000 42 0.0016 0.0000 43 0.0015 0.0000 44 0.0015 0.0000 45 0.0015 0.0000 46 0.0014 0.0000 47 0.0014 0.0000 48 0.0014 0.0000 49 0.0014 0.0000 50 0.0014 0.0000 51 0.0013 0.0000 52 0.0013 0.0000 53 0.0012 0.0000 54 0.0011 0.0000 55 0.0009 0.0000 56 0.0009 0.0000 57 0.0008 0.0000 58 0.0008 0.0000 59 0.0005 0.0000 60 0.0003 0.0000 61 0.0002 0.0000 default[57]10/10/2023 9:06:55 AM Page 12 default[57]10/10/2023 9:06:55 AM Page 13 Duration Flows The Facility PASSED Flow(cfs)Predev Mit Percentage Pass/Fail 0.0010 17582 0 0 Pass 0.0011 16191 0 0 Pass 0.0011 14987 0 0 Pass 0.0012 13873 0 0 Pass 0.0012 12831 0 0 Pass 0.0012 11832 0 0 Pass 0.0013 10900 0 0 Pass 0.0013 10121 0 0 Pass 0.0014 9388 0 0 Pass 0.0014 8735 0 0 Pass 0.0015 8156 0 0 Pass 0.0015 7602 0 0 Pass 0.0015 7071 0 0 Pass 0.0016 6594 0 0 Pass 0.0016 6154 0 0 Pass 0.0017 5784 0 0 Pass 0.0017 5437 0 0 Pass 0.0017 5106 0 0 Pass 0.0018 4808 0 0 Pass 0.0018 4526 0 0 Pass 0.0019 4254 0 0 Pass 0.0019 4017 0 0 Pass 0.0019 3784 0 0 Pass 0.0020 3551 0 0 Pass 0.0020 3339 0 0 Pass 0.0021 3138 0 0 Pass 0.0021 2954 0 0 Pass 0.0022 2789 0 0 Pass 0.0022 2599 0 0 Pass 0.0022 2449 0 0 Pass 0.0023 2304 0 0 Pass 0.0023 2162 0 0 Pass 0.0024 2026 0 0 Pass 0.0024 1899 0 0 Pass 0.0024 1790 0 0 Pass 0.0025 1689 0 0 Pass 0.0025 1590 0 0 Pass 0.0026 1483 0 0 Pass 0.0026 1382 0 0 Pass 0.0026 1293 0 0 Pass 0.0027 1222 0 0 Pass 0.0027 1154 0 0 Pass 0.0028 1098 0 0 Pass 0.0028 1048 0 0 Pass 0.0029 997 0 0 Pass 0.0029 930 0 0 Pass 0.0029 883 0 0 Pass 0.0030 838 0 0 Pass 0.0030 789 0 0 Pass 0.0031 743 0 0 Pass 0.0031 713 0 0 Pass 0.0031 670 0 0 Pass 0.0032 633 0 0 Pass default[57]10/10/2023 9:06:55 AM Page 14 0.0032 595 0 0 Pass 0.0033 565 0 0 Pass 0.0033 539 0 0 Pass 0.0033 497 0 0 Pass 0.0034 473 0 0 Pass 0.0034 434 0 0 Pass 0.0035 399 0 0 Pass 0.0035 366 0 0 Pass 0.0035 348 0 0 Pass 0.0036 323 0 0 Pass 0.0036 296 0 0 Pass 0.0037 272 0 0 Pass 0.0037 256 0 0 Pass 0.0038 235 0 0 Pass 0.0038 217 0 0 Pass 0.0038 195 0 0 Pass 0.0039 180 0 0 Pass 0.0039 158 0 0 Pass 0.0040 145 0 0 Pass 0.0040 129 0 0 Pass 0.0040 119 0 0 Pass 0.0041 109 0 0 Pass 0.0041 97 0 0 Pass 0.0042 91 0 0 Pass 0.0042 82 0 0 Pass 0.0042 76 0 0 Pass 0.0043 69 0 0 Pass 0.0043 61 0 0 Pass 0.0044 54 0 0 Pass 0.0044 48 0 0 Pass 0.0045 41 0 0 Pass 0.0045 38 0 0 Pass 0.0045 33 0 0 Pass 0.0046 27 0 0 Pass 0.0046 22 0 0 Pass 0.0047 21 0 0 Pass 0.0047 20 0 0 Pass 0.0047 19 0 0 Pass 0.0048 17 0 0 Pass 0.0048 13 0 0 Pass 0.0049 12 0 0 Pass 0.0049 9 0 0 Pass 0.0049 4 0 0 Pass 0.0050 3 0 0 Pass 0.0050 3 0 0 Pass 0.0051 3 0 0 Pass 0.0051 3 0 0 Pass default[57]10/10/2023 9:06:55 AM Page 15 Water Quality Water Quality BMP Flow and Volume for POC #1 On-line facility volume:0 acre-feet On-line facility target flow:0 cfs. Adjusted for 15 min:0 cfs. Off-line facility target flow:0 cfs. Adjusted for 15 min:0 cfs. default[57]10/10/2023 9:06:55 AM Page 16 LID Report default[57]10/10/2023 9:07:03 AM Page 17 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. default[57]10/10/2023 9:07:03 AM Page 18 Appendix Predeveloped Schematic default[57]10/10/2023 9:07:03 AM Page 19 Mitigated Schematic default[57]10/10/2023 9:07:03 AM Page 20 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 default[57].wdm MESSU 25 Predefault[57].MES 27 Predefault[57].L61 28 Predefault[57].L62 30 POCdefault[57]1.dat END FILES OPN SEQUENCE INGRP INDELT 00:15 PERLND 10 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 *** 10 C, 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 *** 10 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 ********* 10 0 0 4 0 0 0 0 0 0 0 0 0 1 9 END PRINT-INFO default[57]10/10/2023 9:07:03 AM Page 21 PWAT-PARM1 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** 10 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 10 0 4.5 0.08 400 0.05 0.5 0.996 END PWAT-PARM2 PWAT-PARM3 <PLS > PWATER input info: Part 3 *** # - # ***PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP 10 0 0 2 2 0 0 0 END PWAT-PARM3 PWAT-PARM4 <PLS > PWATER input info: Part 4 *** # - # CEPSC UZSN NSUR INTFW IRC LZETP *** 10 0.2 0.5 0.35 6 0.5 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 10 0 0 0 0 2.5 1 0 END PWAT-STATE1 END PERLND IMPLND GEN-INFO <PLS ><-------Name-------> Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** END GEN-INFO *** Section IWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW IWAT SLD IWG IQAL *** END ACTIVITY PRINT-INFO <ILS > ******** Print-flags ******** PIVL PYR # - # ATMP SNOW IWAT SLD IWG IQAL ********* END PRINT-INFO IWAT-PARM1 <PLS > IWATER variable monthly parameter value flags *** # - # CSNO RTOP VRS VNN RTLI *** END IWAT-PARM1 IWAT-PARM2 <PLS > IWATER input info: Part 2 *** # - # *** LSUR SLSUR NSUR RETSC END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS END IWAT-STATE1 default[57]10/10/2023 9:07:03 AM Page 22 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Basin 1*** PERLND 10 0.071 COPY 501 12 PERLND 10 0.071 COPY 501 13 ******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 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 default[57]10/10/2023 9:07:03 AM Page 23 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 END MASS-LINK END RUN default[57]10/10/2023 9:07:03 AM Page 24 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 default[57].wdm MESSU 25 Mitdefault[57].MES 27 Mitdefault[57].L61 28 Mitdefault[57].L62 30 POCdefault[57]1.dat END FILES OPN SEQUENCE INGRP INDELT 00:15 IMPLND 4 RCHRES 1 COPY 1 COPY 501 DISPLY 1 END INGRP END OPN SEQUENCE DISPLY DISPLY-INFO1 # - #<----------Title----------->***TRAN PIVL DIG1 FIL1 PYR DIG2 FIL2 YRND 1 Gravel Trench Bed 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 *** END GEN-INFO *** Section PWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC *** END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ***************************** PIVL PYR # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC ********* END PRINT-INFO PWAT-PARM1 default[57]10/10/2023 9:07:03 AM Page 25 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** END PWAT-PARM1 PWAT-PARM2 <PLS > PWATER input info: Part 2 *** # - # ***FOREST LZSN INFILT LSUR SLSUR KVARY AGWRC END PWAT-PARM2 PWAT-PARM3 <PLS > PWATER input info: Part 3 *** # - # ***PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP END PWAT-PARM3 PWAT-PARM4 <PLS > PWATER input info: Part 4 *** # - # CEPSC UZSN NSUR INTFW IRC LZETP *** 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 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 END GEN-INFO *** Section IWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW IWAT SLD IWG IQAL *** 4 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 END PRINT-INFO IWAT-PARM1 <PLS > IWATER variable monthly parameter value flags *** # - # CSNO RTOP VRS VNN RTLI *** 4 0 0 0 0 0 END IWAT-PARM1 IWAT-PARM2 <PLS > IWATER input info: Part 2 *** # - # *** LSUR SLSUR NSUR RETSC 4 400 0.01 0.1 0.1 END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN 4 0 0 END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS 4 0 0 END IWAT-STATE1 default[57]10/10/2023 9:07:03 AM Page 26 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Basin 1*** IMPLND 4 0.071 RCHRES 1 5 ******Routing****** IMPLND 4 0.071 COPY 1 15 RCHRES 1 1 COPY 501 17 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 *** 1 Gravel Trench Be-005 2 1 1 1 28 0 1 END GEN-INFO *** Section RCHRES*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # HYFG ADFG CNFG HTFG SDFG GQFG OXFG NUFG PKFG PHFG *** 1 1 0 0 0 0 0 0 0 0 0 END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ******************* PIVL PYR # - # HYDR ADCA CONS HEAT SED GQL OXRX NUTR PLNK PHCB PIVL PYR ********* 1 4 0 0 0 0 0 0 0 0 0 1 9 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 * * * * * * * * * * * * * * *** 1 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 END HYDR-PARM1 HYDR-PARM2 # - # FTABNO LEN DELTH STCOR KS DB50 *** <------><--------><--------><--------><--------><--------><--------> *** 1 1 0.02 0.0 0.0 0.5 0.0 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 <------><--------> <---><---><---><---><---> *** <---><---><---><---><---> 1 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 END HYDR-INIT END RCHRES SPEC-ACTIONS END SPEC-ACTIONS default[57]10/10/2023 9:07:03 AM Page 27 FTABLES FTABLE 1 92 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.012843 0.000000 0.000000 0.000000 0.016667 0.012844 0.000071 0.000000 0.018131 0.033333 0.012845 0.000141 0.000000 0.018132 0.050000 0.012846 0.000212 0.000000 0.018134 0.066667 0.012847 0.000283 0.000000 0.018135 0.083333 0.012847 0.000353 0.000000 0.018136 0.100000 0.012848 0.000424 0.000000 0.018138 0.116667 0.012849 0.000495 0.000000 0.018139 0.133333 0.012850 0.000565 0.000000 0.018140 0.150000 0.012851 0.000636 0.000000 0.018141 0.166667 0.012852 0.000707 0.000000 0.018143 0.183333 0.012853 0.000777 0.000000 0.018144 0.200000 0.012854 0.000848 0.000000 0.018145 0.216667 0.012855 0.000919 0.000000 0.018146 0.233333 0.012855 0.000989 0.000000 0.018148 0.250000 0.012856 0.001060 0.000000 0.018149 0.266667 0.012857 0.001131 0.000000 0.018150 0.283333 0.012858 0.001202 0.000000 0.018151 0.300000 0.012859 0.001272 0.000000 0.018153 0.316667 0.012860 0.001343 0.000000 0.018154 0.333333 0.012861 0.001414 0.000000 0.018155 0.350000 0.012862 0.001484 0.000000 0.018156 0.366667 0.012863 0.001555 0.000000 0.018158 0.383333 0.012864 0.001626 0.000000 0.018159 0.400000 0.012864 0.001697 0.000000 0.018160 0.416667 0.012865 0.001767 0.000000 0.018162 0.433333 0.012866 0.001838 0.000000 0.018163 0.450000 0.012867 0.001909 0.000000 0.018164 0.466667 0.012868 0.001980 0.000000 0.018165 0.483333 0.012869 0.002051 0.000000 0.018167 0.500000 0.012870 0.002121 0.000000 0.018168 0.516667 0.012871 0.002192 0.000000 0.018169 0.533333 0.012872 0.002263 0.000000 0.018170 0.550000 0.012872 0.002334 0.000000 0.018172 0.566667 0.012873 0.002404 0.000000 0.018173 0.583333 0.012874 0.002475 0.000000 0.018174 0.600000 0.012875 0.002546 0.000000 0.018175 0.616667 0.012876 0.002617 0.000000 0.018177 0.633333 0.012877 0.002688 0.000000 0.018178 0.650000 0.012878 0.002759 0.000000 0.018179 0.666667 0.012879 0.002829 0.000000 0.018180 0.683333 0.012880 0.002900 0.000000 0.018182 0.700000 0.012881 0.002971 0.000000 0.018183 0.716667 0.012881 0.003042 0.000000 0.018184 0.733333 0.012882 0.003113 0.000000 0.018186 0.750000 0.012883 0.003184 0.000000 0.018187 0.766667 0.012884 0.003254 0.000000 0.018188 0.783333 0.012885 0.003325 0.000000 0.018189 0.800000 0.012886 0.003396 0.000000 0.018191 0.816667 0.012887 0.003467 0.000000 0.018192 0.833333 0.012888 0.003538 0.000000 0.018193 0.850000 0.012889 0.003609 0.000000 0.018194 0.866667 0.012889 0.003680 0.000000 0.018196 0.883333 0.012890 0.003751 0.000000 0.018197 0.900000 0.012891 0.003822 0.000000 0.018198 0.916667 0.012892 0.003892 0.000000 0.018199 0.933333 0.012893 0.003963 0.000000 0.018201 0.950000 0.012894 0.004034 0.000000 0.018202 0.966667 0.012895 0.004105 0.000000 0.018203 0.983333 0.012896 0.004176 0.000000 0.018204 1.000000 0.012897 0.004247 0.000000 0.018206 1.016667 0.012898 0.004318 0.000000 0.018207 1.033333 0.012898 0.004389 0.000000 0.018208 1.050000 0.012899 0.004460 0.000000 0.018210 1.066667 0.012900 0.004531 0.000000 0.018211 default[57]10/10/2023 9:07:03 AM Page 28 1.083333 0.012901 0.004602 0.000000 0.018212 1.100000 0.012902 0.004673 0.000000 0.018213 1.116667 0.012903 0.004744 0.000000 0.018215 1.133333 0.012904 0.004815 0.000000 0.018216 1.150000 0.012905 0.004886 0.000000 0.018217 1.166667 0.012906 0.004957 0.000000 0.018218 1.183333 0.012906 0.005028 0.000000 0.018220 1.200000 0.012907 0.005099 0.000000 0.018221 1.216667 0.012908 0.005170 0.000000 0.018222 1.233333 0.012909 0.005241 0.000000 0.018223 1.250000 0.012910 0.005312 0.000000 0.018225 1.266667 0.012911 0.005383 0.000000 0.018226 1.283333 0.012912 0.005454 0.000000 0.018227 1.300000 0.012913 0.005525 0.000000 0.018228 1.316667 0.012914 0.005596 0.000000 0.018230 1.333333 0.012915 0.005667 0.000000 0.018231 1.350000 0.012915 0.005738 0.000000 0.018232 1.366667 0.012916 0.005809 0.000000 0.018234 1.383333 0.012917 0.005880 0.000000 0.018235 1.400000 0.012918 0.005951 0.000000 0.018236 1.416667 0.012919 0.006022 0.011409 0.018237 1.433333 0.012920 0.006093 0.032215 0.018239 1.450000 0.012921 0.006164 0.058959 0.018240 1.466667 0.012922 0.006235 0.090096 0.018241 1.483333 0.012923 0.006306 0.124350 0.018242 1.500000 0.012923 0.006377 0.160456 0.018244 1.516667 0.012924 0.006593 0.197112 0.018245 END FTABLE 1 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*** RCHRES 1 HYDR RO 1 1 1 WDM 1000 FLOW ENGL REPL RCHRES 1 HYDR O 1 1 1 WDM 1001 FLOW ENGL REPL RCHRES 1 HYDR O 2 1 1 WDM 1002 FLOW ENGL REPL RCHRES 1 HYDR STAGE 1 1 1 WDM 1003 STAG ENGL REPL 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 5 IMPLND IWATER SURO 0.083333 RCHRES INFLOW IVOL END MASS-LINK 5 MASS-LINK 15 IMPLND IWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 15 MASS-LINK 17 RCHRES OFLOW OVOL 1 COPY INPUT MEAN END MASS-LINK 17 END MASS-LINK END RUN default[57]10/10/2023 9:07:03 AM Page 29 default[57]10/10/2023 9:07:03 AM Page 30 Predeveloped HSPF Message File default[57]10/10/2023 9:07:03 AM Page 31 Mitigated HSPF Message File default[57]10/10/2023 9:07:03 AM Page 32 Disclaimer Legal Notice This program and accompanying documentation are provided 'as-is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by End User. Clear Creek Solutions Inc. and the governmental licensee or sublicensees disclaim all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall Clear Creek Solutions Inc. be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the use of, or inability to use this program even if Clear Creek Solutions Inc. or their authorized representatives have been advised of the possibility of such damages. Software Copyright © by : Clear Creek Solutions, Inc. 2005-2023; All Rights Reserved. Clear Creek Solutions, Inc. 6200 Capitol Blvd. Ste F Olympia, WA. 98501 Toll Free 1(866)943-0304 Local (360)943-0304 www.clearcreeksolutions.com WWHM2012 PROJECT REPORT LOT 2 TRENCH #4 RESULTS default[57]10/10/2023 9:18:36 AM Page 2 General Model Information Project Name:default[57] Site Name: Site Address: City: Report Date:10/10/2023 Gage:Seatac Data Start:1948/10/01 Data End:2009/09/30 Timestep:15 Minute Precip Scale:1.000 Version Date:2021/08/18 Version:4.2.18 POC Thresholds Low Flow Threshold for POC1:50 Percent of the 2 Year High Flow Threshold for POC1:50 Year default[57]10/10/2023 9:18:36 AM Page 3 Landuse Basin Data Predeveloped Land Use Basin 1 Bypass:No GroundWater:No Pervious Land Use acre C, Forest, Mod 0.054 Pervious Total 0.054 Impervious Land Use acre Impervious Total 0 Basin Total 0.054 Element Flows To: Surface Interflow Groundwater default[57]10/10/2023 9:18:36 AM Page 4 Mitigated Land Use Basin 1 Bypass:No GroundWater:No Pervious Land Use acre Pervious Total 0 Impervious Land Use acre ROOF TOPS FLAT 0.054 Impervious Total 0.054 Basin Total 0.054 Element Flows To: Surface Interflow Groundwater Lot 2 trench 3l Lot 2 trench 3l default[57]10/10/2023 9:18:36 AM Page 5 Routing Elements Predeveloped Routing default[57]10/10/2023 9:18:36 AM Page 6 Mitigated Routing Lot 2 trench 3l Bottom Length:80.57 ft. Bottom Width:5.02 ft. Trench bottom slope 1:0.01 To 1 Trench Left side slope 0:0.01 To 1 Trench right side slope 2:0.01 To 1 Material thickness of first layer:1.5 Pour Space of material for first layer:0.33 Material thickness of second layer:0 Pour Space of material for second layer:0 Material thickness of third layer:0 Pour Space of material for third layer:0 Infiltration On Infiltration rate:1.4 Infiltration safety factor:1 Wetted surface area On Total Volume Infiltrated (ac-ft.):8.363 Total Volume Through Riser (ac-ft.):0.001 Total Volume Through Facility (ac-ft.):8.363 Percent Infiltrated:100 Total Precip Applied to Facility:0 Total Evap From Facility:0 Discharge Structure Riser Height:1.4 ft. Riser Diameter:6 in. Element Flows To: Outlet 1 Outlet 2 Gravel Trench Bed Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)Infilt(cfs) 0.0000 0.009 0.000 0.000 0.000 0.0167 0.009 0.000 0.000 0.013 0.0333 0.009 0.000 0.000 0.013 0.0500 0.009 0.000 0.000 0.013 0.0667 0.009 0.000 0.000 0.013 0.0833 0.009 0.000 0.000 0.013 0.1000 0.009 0.000 0.000 0.013 0.1167 0.009 0.000 0.000 0.013 0.1333 0.009 0.000 0.000 0.013 0.1500 0.009 0.000 0.000 0.013 0.1667 0.009 0.000 0.000 0.013 0.1833 0.009 0.000 0.000 0.013 0.2000 0.009 0.000 0.000 0.013 0.2167 0.009 0.000 0.000 0.013 0.2333 0.009 0.000 0.000 0.013 0.2500 0.009 0.000 0.000 0.013 0.2667 0.009 0.000 0.000 0.013 0.2833 0.009 0.000 0.000 0.013 0.3000 0.009 0.000 0.000 0.013 0.3167 0.009 0.001 0.000 0.013 0.3333 0.009 0.001 0.000 0.013 0.3500 0.009 0.001 0.000 0.013 0.3667 0.009 0.001 0.000 0.013 default[57]10/10/2023 9:18:36 AM Page 7 0.3833 0.009 0.001 0.000 0.013 0.4000 0.009 0.001 0.000 0.013 0.4167 0.009 0.001 0.000 0.013 0.4333 0.009 0.001 0.000 0.013 0.4500 0.009 0.001 0.000 0.013 0.4667 0.009 0.001 0.000 0.013 0.4833 0.009 0.001 0.000 0.013 0.5000 0.009 0.001 0.000 0.013 0.5167 0.009 0.001 0.000 0.013 0.5333 0.009 0.001 0.000 0.013 0.5500 0.009 0.001 0.000 0.013 0.5667 0.009 0.001 0.000 0.013 0.5833 0.009 0.001 0.000 0.013 0.6000 0.009 0.001 0.000 0.013 0.6167 0.009 0.001 0.000 0.013 0.6333 0.009 0.001 0.000 0.013 0.6500 0.009 0.002 0.000 0.013 0.6667 0.009 0.002 0.000 0.013 0.6833 0.009 0.002 0.000 0.013 0.7000 0.009 0.002 0.000 0.013 0.7167 0.009 0.002 0.000 0.013 0.7333 0.009 0.002 0.000 0.013 0.7500 0.009 0.002 0.000 0.013 0.7667 0.009 0.002 0.000 0.013 0.7833 0.009 0.002 0.000 0.013 0.8000 0.009 0.002 0.000 0.013 0.8167 0.009 0.002 0.000 0.013 0.8333 0.009 0.002 0.000 0.013 0.8500 0.009 0.002 0.000 0.013 0.8667 0.009 0.002 0.000 0.013 0.8833 0.009 0.002 0.000 0.013 0.9000 0.009 0.002 0.000 0.013 0.9167 0.009 0.002 0.000 0.013 0.9333 0.009 0.002 0.000 0.013 0.9500 0.009 0.002 0.000 0.013 0.9667 0.009 0.003 0.000 0.013 0.9833 0.009 0.003 0.000 0.013 1.0000 0.009 0.003 0.000 0.013 1.0167 0.009 0.003 0.000 0.013 1.0333 0.009 0.003 0.000 0.013 1.0500 0.009 0.003 0.000 0.013 1.0667 0.009 0.003 0.000 0.013 1.0833 0.009 0.003 0.000 0.013 1.1000 0.009 0.003 0.000 0.013 1.1167 0.009 0.003 0.000 0.013 1.1333 0.009 0.003 0.000 0.013 1.1500 0.009 0.003 0.000 0.013 1.1667 0.009 0.003 0.000 0.013 1.1833 0.009 0.003 0.000 0.013 1.2000 0.009 0.003 0.000 0.013 1.2167 0.009 0.003 0.000 0.013 1.2333 0.009 0.003 0.000 0.013 1.2500 0.009 0.003 0.000 0.013 1.2667 0.009 0.003 0.000 0.013 1.2833 0.009 0.003 0.000 0.013 1.3000 0.009 0.004 0.000 0.013 1.3167 0.009 0.004 0.000 0.013 1.3333 0.009 0.004 0.000 0.013 default[57]10/10/2023 9:18:36 AM Page 8 1.3500 0.009 0.004 0.000 0.013 1.3667 0.009 0.004 0.000 0.013 1.3833 0.009 0.004 0.000 0.013 1.4000 0.009 0.004 0.000 0.013 1.4167 0.009 0.004 0.011 0.013 1.4333 0.009 0.004 0.032 0.013 1.4500 0.009 0.004 0.059 0.013 1.4667 0.009 0.004 0.090 0.013 1.4833 0.009 0.004 0.124 0.013 1.5000 0.009 0.004 0.160 0.013 default[57]10/10/2023 9:18:36 AM Page 9 Analysis Results POC 1 + Predeveloped x Mitigated Predeveloped Landuse Totals for POC #1 Total Pervious Area:0.054 Total Impervious Area:0 Mitigated Landuse Totals for POC #1 Total Pervious Area:0 Total Impervious Area:0.054 Flow Frequency Method:Log Pearson Type III 17B Flow Frequency Return Periods for Predeveloped. POC #1 Return Period Flow(cfs) 2 year 0.001608 5 year 0.002635 10 year 0.003295 25 year 0.00408 50 year 0.004624 100 year 0.005132 Flow Frequency Return Periods for Mitigated. POC #1 Return Period Flow(cfs) 2 year 0 5 year 0 10 year 0 25 year 0 50 year 0 100 year 0 Annual Peaks Annual Peaks for Predeveloped and Mitigated. POC #1 Year Predeveloped Mitigated 1949 0.002 0.000 1950 0.002 0.000 1951 0.004 0.000 1952 0.001 0.000 1953 0.001 0.000 1954 0.001 0.000 1955 0.002 0.000 1956 0.002 0.000 1957 0.001 0.000 1958 0.002 0.000 default[57]10/10/2023 9:19:06 AM Page 10 1959 0.001 0.000 1960 0.002 0.000 1961 0.001 0.000 1962 0.001 0.000 1963 0.001 0.000 1964 0.002 0.000 1965 0.001 0.000 1966 0.001 0.000 1967 0.002 0.000 1968 0.001 0.000 1969 0.001 0.000 1970 0.001 0.000 1971 0.001 0.000 1972 0.003 0.000 1973 0.001 0.000 1974 0.001 0.000 1975 0.002 0.000 1976 0.001 0.000 1977 0.000 0.000 1978 0.001 0.000 1979 0.001 0.000 1980 0.003 0.000 1981 0.001 0.000 1982 0.002 0.000 1983 0.002 0.000 1984 0.001 0.000 1985 0.001 0.000 1986 0.003 0.000 1987 0.002 0.000 1988 0.001 0.000 1989 0.001 0.000 1990 0.006 0.000 1991 0.003 0.000 1992 0.001 0.000 1993 0.001 0.000 1994 0.000 0.000 1995 0.002 0.000 1996 0.004 0.000 1997 0.003 0.000 1998 0.001 0.000 1999 0.003 0.000 2000 0.001 0.000 2001 0.000 0.000 2002 0.001 0.000 2003 0.002 0.000 2004 0.002 0.006 2005 0.002 0.000 2006 0.002 0.000 2007 0.004 0.000 2008 0.005 0.000 2009 0.003 0.000 Ranked Annual Peaks Ranked Annual Peaks for Predeveloped and Mitigated. POC #1 Rank Predeveloped Mitigated 1 0.0058 0.0064 2 0.0054 0.0000 3 0.0044 0.0000 default[57]10/10/2023 9:19:06 AM Page 11 4 0.0041 0.0000 5 0.0035 0.0000 6 0.0035 0.0000 7 0.0031 0.0000 8 0.0031 0.0000 9 0.0031 0.0000 10 0.0028 0.0000 11 0.0027 0.0000 12 0.0025 0.0000 13 0.0025 0.0000 14 0.0024 0.0000 15 0.0024 0.0000 16 0.0023 0.0000 17 0.0022 0.0000 18 0.0022 0.0000 19 0.0021 0.0000 20 0.0020 0.0000 21 0.0019 0.0000 22 0.0019 0.0000 23 0.0018 0.0000 24 0.0018 0.0000 25 0.0018 0.0000 26 0.0017 0.0000 27 0.0017 0.0000 28 0.0016 0.0000 29 0.0016 0.0000 30 0.0014 0.0000 31 0.0014 0.0000 32 0.0014 0.0000 33 0.0014 0.0000 34 0.0014 0.0000 35 0.0014 0.0000 36 0.0013 0.0000 37 0.0013 0.0000 38 0.0013 0.0000 39 0.0013 0.0000 40 0.0012 0.0000 41 0.0012 0.0000 42 0.0012 0.0000 43 0.0012 0.0000 44 0.0011 0.0000 45 0.0011 0.0000 46 0.0011 0.0000 47 0.0011 0.0000 48 0.0011 0.0000 49 0.0010 0.0000 50 0.0010 0.0000 51 0.0010 0.0000 52 0.0010 0.0000 53 0.0009 0.0000 54 0.0008 0.0000 55 0.0008 0.0000 56 0.0007 0.0000 57 0.0006 0.0000 58 0.0006 0.0000 59 0.0004 0.0000 60 0.0002 0.0000 61 0.0002 0.0000 default[57]10/10/2023 9:19:06 AM Page 12 default[57]10/10/2023 9:19:06 AM Page 13 Duration Flows The Facility PASSED Flow(cfs)Predev Mit Percentage Pass/Fail 0.0008 17073 9 0 Pass 0.0008 15503 9 0 Pass 0.0009 14070 9 0 Pass 0.0009 12816 9 0 Pass 0.0010 11569 9 0 Pass 0.0010 10540 9 0 Pass 0.0010 9574 8 0 Pass 0.0011 8750 8 0 Pass 0.0011 8049 8 0 Pass 0.0012 7347 8 0 Pass 0.0012 6746 8 0 Pass 0.0012 6192 8 0 Pass 0.0013 5724 8 0 Pass 0.0013 5313 8 0 Pass 0.0013 4924 8 0 Pass 0.0014 4571 8 0 Pass 0.0014 4237 8 0 Pass 0.0015 3957 8 0 Pass 0.0015 3645 8 0 Pass 0.0015 3388 8 0 Pass 0.0016 3133 8 0 Pass 0.0016 2915 8 0 Pass 0.0017 2710 8 0 Pass 0.0017 2490 8 0 Pass 0.0017 2314 8 0 Pass 0.0018 2136 8 0 Pass 0.0018 1972 8 0 Pass 0.0018 1827 8 0 Pass 0.0019 1702 8 0 Pass 0.0019 1579 8 0 Pass 0.0020 1443 8 0 Pass 0.0020 1325 8 0 Pass 0.0020 1233 8 0 Pass 0.0021 1147 8 0 Pass 0.0021 1086 8 0 Pass 0.0022 1020 8 0 Pass 0.0022 947 8 0 Pass 0.0022 887 8 0 Pass 0.0023 824 8 0 Pass 0.0023 761 8 1 Pass 0.0023 725 8 1 Pass 0.0024 674 8 1 Pass 0.0024 623 8 1 Pass 0.0025 589 8 1 Pass 0.0025 549 8 1 Pass 0.0025 506 8 1 Pass 0.0026 469 8 1 Pass 0.0026 427 7 1 Pass 0.0027 388 7 1 Pass 0.0027 356 7 1 Pass 0.0027 328 7 2 Pass 0.0028 298 7 2 Pass 0.0028 270 7 2 Pass default[57]10/10/2023 9:19:06 AM Page 14 0.0028 241 7 2 Pass 0.0029 218 7 3 Pass 0.0029 198 7 3 Pass 0.0030 174 7 4 Pass 0.0030 152 7 4 Pass 0.0030 130 7 5 Pass 0.0031 119 7 5 Pass 0.0031 104 7 6 Pass 0.0032 95 7 7 Pass 0.0032 83 7 8 Pass 0.0032 74 7 9 Pass 0.0033 69 7 10 Pass 0.0033 61 7 11 Pass 0.0034 53 7 13 Pass 0.0034 46 7 15 Pass 0.0034 39 7 17 Pass 0.0035 29 6 20 Pass 0.0035 25 6 24 Pass 0.0035 22 6 27 Pass 0.0036 20 6 30 Pass 0.0036 17 6 35 Pass 0.0037 14 6 42 Pass 0.0037 12 6 50 Pass 0.0037 8 6 75 Pass 0.0038 7 6 85 Pass 0.0038 7 6 85 Pass 0.0039 7 6 85 Pass 0.0039 6 6 100 Pass 0.0039 6 6 100 Pass 0.0040 6 5 83 Pass 0.0040 6 5 83 Pass 0.0040 6 5 83 Pass 0.0041 5 4 80 Pass 0.0041 5 4 80 Pass 0.0042 5 4 80 Pass 0.0042 5 4 80 Pass 0.0042 5 4 80 Pass 0.0043 5 4 80 Pass 0.0043 5 4 80 Pass 0.0044 4 4 100 Pass 0.0044 4 4 100 Pass 0.0044 3 3 100 Pass 0.0045 3 3 100 Pass 0.0045 3 3 100 Pass 0.0045 3 3 100 Pass 0.0046 3 3 100 Pass 0.0046 3 3 100 Pass default[57]10/10/2023 9:19:06 AM Page 15 Water Quality Water Quality BMP Flow and Volume for POC #1 On-line facility volume:0 acre-feet On-line facility target flow:0 cfs. Adjusted for 15 min:0 cfs. Off-line facility target flow:0 cfs. Adjusted for 15 min:0 cfs. default[57]10/10/2023 9:19:06 AM Page 16 LID Report default[57]10/10/2023 9:19:13 AM Page 17 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. default[57]10/10/2023 9:19:13 AM Page 18 Appendix Predeveloped Schematic default[57]10/10/2023 9:19:13 AM Page 19 Mitigated Schematic default[57]10/10/2023 9:19:14 AM Page 20 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 default[57].wdm MESSU 25 Predefault[57].MES 27 Predefault[57].L61 28 Predefault[57].L62 30 POCdefault[57]1.dat END FILES OPN SEQUENCE INGRP INDELT 00:15 PERLND 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 *** 11 C, Forest, Mod 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 *** 11 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 ********* 11 0 0 4 0 0 0 0 0 0 0 0 0 1 9 END PRINT-INFO default[57]10/10/2023 9:19:14 AM Page 21 PWAT-PARM1 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** 11 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 11 0 4.5 0.08 400 0.1 0.5 0.996 END PWAT-PARM2 PWAT-PARM3 <PLS > PWATER input info: Part 3 *** # - # ***PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP 11 0 0 2 2 0 0 0 END PWAT-PARM3 PWAT-PARM4 <PLS > PWATER input info: Part 4 *** # - # CEPSC UZSN NSUR INTFW IRC LZETP *** 11 0.2 0.5 0.35 6 0.5 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 11 0 0 0 0 2.5 1 0 END PWAT-STATE1 END PERLND IMPLND GEN-INFO <PLS ><-------Name-------> Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** END GEN-INFO *** Section IWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW IWAT SLD IWG IQAL *** END ACTIVITY PRINT-INFO <ILS > ******** Print-flags ******** PIVL PYR # - # ATMP SNOW IWAT SLD IWG IQAL ********* END PRINT-INFO IWAT-PARM1 <PLS > IWATER variable monthly parameter value flags *** # - # CSNO RTOP VRS VNN RTLI *** END IWAT-PARM1 IWAT-PARM2 <PLS > IWATER input info: Part 2 *** # - # *** LSUR SLSUR NSUR RETSC END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS END IWAT-STATE1 default[57]10/10/2023 9:19:14 AM Page 22 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Basin 1*** PERLND 11 0.054 COPY 501 12 PERLND 11 0.054 COPY 501 13 ******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 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 default[57]10/10/2023 9:19:14 AM Page 23 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 END MASS-LINK END RUN default[57]10/10/2023 9:19:14 AM Page 24 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 default[57].wdm MESSU 25 Mitdefault[57].MES 27 Mitdefault[57].L61 28 Mitdefault[57].L62 30 POCdefault[57]1.dat END FILES OPN SEQUENCE INGRP INDELT 00:15 IMPLND 4 RCHRES 1 COPY 1 COPY 501 DISPLY 1 END INGRP END OPN SEQUENCE DISPLY DISPLY-INFO1 # - #<----------Title----------->***TRAN PIVL DIG1 FIL1 PYR DIG2 FIL2 YRND 1 Gravel Trench Bed 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 *** END GEN-INFO *** Section PWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC *** END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ***************************** PIVL PYR # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC ********* END PRINT-INFO PWAT-PARM1 default[57]10/10/2023 9:19:14 AM Page 25 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** END PWAT-PARM1 PWAT-PARM2 <PLS > PWATER input info: Part 2 *** # - # ***FOREST LZSN INFILT LSUR SLSUR KVARY AGWRC END PWAT-PARM2 PWAT-PARM3 <PLS > PWATER input info: Part 3 *** # - # ***PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP END PWAT-PARM3 PWAT-PARM4 <PLS > PWATER input info: Part 4 *** # - # CEPSC UZSN NSUR INTFW IRC LZETP *** 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 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 END GEN-INFO *** Section IWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW IWAT SLD IWG IQAL *** 4 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 END PRINT-INFO IWAT-PARM1 <PLS > IWATER variable monthly parameter value flags *** # - # CSNO RTOP VRS VNN RTLI *** 4 0 0 0 0 0 END IWAT-PARM1 IWAT-PARM2 <PLS > IWATER input info: Part 2 *** # - # *** LSUR SLSUR NSUR RETSC 4 400 0.01 0.1 0.1 END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN 4 0 0 END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS 4 0 0 END IWAT-STATE1 default[57]10/10/2023 9:19:14 AM Page 26 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Basin 1*** IMPLND 4 0.054 RCHRES 1 5 ******Routing****** IMPLND 4 0.054 COPY 1 15 RCHRES 1 1 COPY 501 17 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 *** 1 Gravel Trench Be-005 2 1 1 1 28 0 1 END GEN-INFO *** Section RCHRES*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # HYFG ADFG CNFG HTFG SDFG GQFG OXFG NUFG PKFG PHFG *** 1 1 0 0 0 0 0 0 0 0 0 END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ******************* PIVL PYR # - # HYDR ADCA CONS HEAT SED GQL OXRX NUTR PLNK PHCB PIVL PYR ********* 1 4 0 0 0 0 0 0 0 0 0 1 9 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 * * * * * * * * * * * * * * *** 1 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 END HYDR-PARM1 HYDR-PARM2 # - # FTABNO LEN DELTH STCOR KS DB50 *** <------><--------><--------><--------><--------><--------><--------> *** 1 1 0.02 0.0 0.0 0.5 0.0 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 <------><--------> <---><---><---><---><---> *** <---><---><---><---><---> 1 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 END HYDR-INIT END RCHRES SPEC-ACTIONS END SPEC-ACTIONS default[57]10/10/2023 9:19:14 AM Page 27 FTABLES FTABLE 1 92 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.009284 0.000000 0.000000 0.000000 0.016667 0.009285 0.000051 0.000000 0.013107 0.033333 0.009286 0.000102 0.000000 0.013108 0.050000 0.009286 0.000153 0.000000 0.013109 0.066667 0.009287 0.000204 0.000000 0.013110 0.083333 0.009288 0.000255 0.000000 0.013111 0.100000 0.009288 0.000306 0.000000 0.013112 0.116667 0.009289 0.000358 0.000000 0.013113 0.133333 0.009290 0.000409 0.000000 0.013114 0.150000 0.009290 0.000460 0.000000 0.013115 0.166667 0.009291 0.000511 0.000000 0.013116 0.183333 0.009292 0.000562 0.000000 0.013117 0.200000 0.009293 0.000613 0.000000 0.013118 0.216667 0.009293 0.000664 0.000000 0.013119 0.233333 0.009294 0.000715 0.000000 0.013120 0.250000 0.009295 0.000766 0.000000 0.013121 0.266667 0.009295 0.000818 0.000000 0.013122 0.283333 0.009296 0.000869 0.000000 0.013123 0.300000 0.009297 0.000920 0.000000 0.013124 0.316667 0.009297 0.000971 0.000000 0.013125 0.333333 0.009298 0.001022 0.000000 0.013126 0.350000 0.009299 0.001073 0.000000 0.013127 0.366667 0.009299 0.001124 0.000000 0.013127 0.383333 0.009300 0.001175 0.000000 0.013128 0.400000 0.009301 0.001227 0.000000 0.013129 0.416667 0.009301 0.001278 0.000000 0.013130 0.433333 0.009302 0.001329 0.000000 0.013131 0.450000 0.009303 0.001380 0.000000 0.013132 0.466667 0.009303 0.001431 0.000000 0.013133 0.483333 0.009304 0.001482 0.000000 0.013134 0.500000 0.009305 0.001534 0.000000 0.013135 0.516667 0.009305 0.001585 0.000000 0.013136 0.533333 0.009306 0.001636 0.000000 0.013137 0.550000 0.009307 0.001687 0.000000 0.013138 0.566667 0.009307 0.001738 0.000000 0.013139 0.583333 0.009308 0.001790 0.000000 0.013140 0.600000 0.009309 0.001841 0.000000 0.013141 0.616667 0.009309 0.001892 0.000000 0.013142 0.633333 0.009310 0.001943 0.000000 0.013143 0.650000 0.009311 0.001994 0.000000 0.013144 0.666667 0.009311 0.002046 0.000000 0.013145 0.683333 0.009312 0.002097 0.000000 0.013146 0.700000 0.009313 0.002148 0.000000 0.013147 0.716667 0.009313 0.002199 0.000000 0.013147 0.733333 0.009314 0.002250 0.000000 0.013148 0.750000 0.009315 0.002302 0.000000 0.013149 0.766667 0.009315 0.002353 0.000000 0.013150 0.783333 0.009316 0.002404 0.000000 0.013151 0.800000 0.009317 0.002455 0.000000 0.013152 0.816667 0.009317 0.002507 0.000000 0.013153 0.833333 0.009318 0.002558 0.000000 0.013154 0.850000 0.009319 0.002609 0.000000 0.013155 0.866667 0.009320 0.002660 0.000000 0.013156 0.883333 0.009320 0.002712 0.000000 0.013157 0.900000 0.009321 0.002763 0.000000 0.013158 0.916667 0.009322 0.002814 0.000000 0.013159 0.933333 0.009322 0.002865 0.000000 0.013160 0.950000 0.009323 0.002917 0.000000 0.013161 0.966667 0.009324 0.002968 0.000000 0.013162 0.983333 0.009324 0.003019 0.000000 0.013163 1.000000 0.009325 0.003071 0.000000 0.013164 1.016667 0.009326 0.003122 0.000000 0.013165 1.033333 0.009326 0.003173 0.000000 0.013166 1.050000 0.009327 0.003224 0.000000 0.013167 1.066667 0.009328 0.003276 0.000000 0.013168 default[57]10/10/2023 9:19:14 AM Page 28 1.083333 0.009328 0.003327 0.000000 0.013168 1.100000 0.009329 0.003378 0.000000 0.013169 1.116667 0.009330 0.003430 0.000000 0.013170 1.133333 0.009330 0.003481 0.000000 0.013171 1.150000 0.009331 0.003532 0.000000 0.013172 1.166667 0.009332 0.003584 0.000000 0.013173 1.183333 0.009332 0.003635 0.000000 0.013174 1.200000 0.009333 0.003686 0.000000 0.013175 1.216667 0.009334 0.003738 0.000000 0.013176 1.233333 0.009334 0.003789 0.000000 0.013177 1.250000 0.009335 0.003840 0.000000 0.013178 1.266667 0.009336 0.003892 0.000000 0.013179 1.283333 0.009336 0.003943 0.000000 0.013180 1.300000 0.009337 0.003994 0.000000 0.013181 1.316667 0.009338 0.004046 0.000000 0.013182 1.333333 0.009338 0.004097 0.000000 0.013183 1.350000 0.009339 0.004148 0.000000 0.013184 1.366667 0.009340 0.004200 0.000000 0.013185 1.383333 0.009340 0.004251 0.000000 0.013186 1.400000 0.009341 0.004303 0.000000 0.013187 1.416667 0.009342 0.004354 0.011409 0.013188 1.433333 0.009342 0.004405 0.032215 0.013188 1.450000 0.009343 0.004457 0.058959 0.013189 1.466667 0.009344 0.004508 0.090096 0.013190 1.483333 0.009345 0.004559 0.124350 0.013191 1.500000 0.009345 0.004611 0.160456 0.013192 1.516667 0.009346 0.004767 0.197112 0.013193 END FTABLE 1 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*** RCHRES 1 HYDR RO 1 1 1 WDM 1000 FLOW ENGL REPL RCHRES 1 HYDR O 1 1 1 WDM 1001 FLOW ENGL REPL RCHRES 1 HYDR O 2 1 1 WDM 1002 FLOW ENGL REPL RCHRES 1 HYDR STAGE 1 1 1 WDM 1003 STAG ENGL REPL 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 5 IMPLND IWATER SURO 0.083333 RCHRES INFLOW IVOL END MASS-LINK 5 MASS-LINK 15 IMPLND IWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 15 MASS-LINK 17 RCHRES OFLOW OVOL 1 COPY INPUT MEAN END MASS-LINK 17 END MASS-LINK END RUN default[57]10/10/2023 9:19:14 AM Page 29 default[57]10/10/2023 9:19:14 AM Page 30 Predeveloped HSPF Message File default[57]10/10/2023 9:19:14 AM Page 31 Mitigated HSPF Message File default[57]10/10/2023 9:19:14 AM Page 32 Disclaimer Legal Notice This program and accompanying documentation are provided 'as-is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by End User. Clear Creek Solutions Inc. and the governmental licensee or sublicensees disclaim all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall Clear Creek Solutions Inc. be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the use of, or inability to use this program even if Clear Creek Solutions Inc. or their authorized representatives have been advised of the possibility of such damages. Software Copyright © by : Clear Creek Solutions, Inc. 2005-2023; All Rights Reserved. Clear Creek Solutions, Inc. 6200 Capitol Blvd. Ste F Olympia, WA. 98501 Toll Free 1(866)943-0304 Local (360)943-0304 www.clearcreeksolutions.com