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HomeMy WebLinkAbout21-1273 Bill SP Rev TIR_251123_v3Patrick E. Carroll, P.E. PEC Design and Consulting LLC 2621 NE 109th Street Vancouver, WA 98686 (503) 849-1646 pat@pecdesign.net Date: August 23, 2022 Rev: March 25, 2025 Rev: June 29, 2025 Rev. November 22, 2025 Subject: Technical Information Report (TIR) – Billings 2 Lot Short Plat, 14103 160th Avenue SE, Renton, WA 98059 Table of Contents: Project Overview Conditions and Requirements Summary / Core Requirements Off Site Analysis Flow Control and Water Quality Facility Analysis and Design Conveyance System Analysis and Design Special Reports and Studies Other Permits ESC Analysis and Design Bond Quantities, Facility Summaries and Declarations of Covenant Operations Manual Special Requirements WWHM Runs Project Description: The proposed project will divide the existing 36,469 sf parcel into 2 Lots. An existing single family residence is on the proposed parcel B and a future residence will be constructed on parcel A. A 20-foot- wide access driveway will be constructed to parcel A. A driveway with a fire department required hammer head will be constructed in the future and included in the building permit submittal for the residence. The total new impervious area for the driveway, road improvements on 160th Avenue SE (road asphalt paving, driveway drop and sidewalk improvements) is a total of 6,146 sf. The general grade of the residence site slopes gently to the west. The existing soils consist of fine to medium sand (based upon a geotechnical report from Nelson Geotechnical Associates, Inc. (NGA)), therefore runoff from the new driveway impervious area will flow into a gravel trench infiltration / Bioretention facility adjacent to the 20’ driveway on the south side of the lot in the landscaping area. An overflow for the infiltration / planter bed will be the proposed inlet and into the existing storm system inlet in 160th Ave. SE. The street improvements, and sidewalk will flow into the existing roadside ditch on 160th Ave. SE. The runoff from the future fire turnaround and the proposed residence will flow to the bioretention in the respective TDA. The individual system design will be provided at time of the building permit application. However, the existing flows of the site have a high point towards the center of the site. The Driveway is split into into two different TDAs. In accordance with the Stormwater Manual “BMP’s must be implemented, at minimum for a impervious area equal to at least 10% of the site/lot for site/lot sizes up to Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B 11,000 square feet..” Each site under this understanding is now under 11,000 SF in their TDA. Avenue SE. The approximate area to be disturbed during the installation of the improvements is approximately 7,000 sf. No existing native growth areas or significant trees will be disturbed. Under this permit, it is assumed that the only area to be disturbed, will be for the installation of the proposed driveway to parcel A, and for the installation of the street, sidewalk, and driveway drop on 160th The system proposed to accomplish these flows is one bioretention of 150.00’ x 3.8’ with a 1’ depth. See attached plan for schematic of this system. Thes second Bioretention to the east will be a 54’ x 4’ x 1’ depth. These two systems assembled to surface area, will be 10% of the existing impervious areas. The proposed site earthwork is estimated as follows. Earthwork Calculations: Access Driveway Exc. Residence Exc. = 2,879 sf = 1,013 sf = 160 cy = 50 cy Total excavation to be spread onsite. = 210 cy. Conditions and Requirements Summary: The following specifics about the site apply: The site will use the City of Renton/King County Stormwater Manual allow for sheet flow from the driveway to the proposed Bioretention facility with an overflow into the existing storm system. Due to the size of the site, and area disturbed, a Full Drainage Review format will be used. The following sections address the project as relates to the nine Core Requirements and the five Special Requirements. Core Requirement #1 - Discharge at the Natural Location The impervious areas for the access driveway will flow to the proposed landscape area along the south side of the driveway to Lot 2. The landscape area will have amended soil, and will have an overflow discharge to the existing storm system via the inlet at the east end of the facility near 160th Avenue SE. The stormwater from the proposed residence will flow onto splash blocks then into the amended soil downstream from the residence. Core Requirement #2 – Offsite Analysis There are no identified drainage problems “downstream” of the site. Core Requirement #3 - Flow Control The attached WWHM calculations reflect that the flow difference existing flows (Forested condition) Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B and the mitigated for the proposed project are less than a 0.10 cfs increase in flow therefore the runoff can flow to the landscape area for the access drive, and will utilize splash blocks for the roof runoff and distribute the flow to the amended soil downslope of the residence. The inlet at the east end of the driveway near 160th Avenue will be for overflow discharge for the access road. Core Requirement #4 - Conveyance System The use of PVC pipe for runoff collection and routing to the existing storm system provides accepted and common conveyance practice. Three feet of cover is provided under pavement. Any storm piping under 3 feet of cover will be Ductile Iron Pipe. Core Requirement #5 - Construction Stormwater Pollution Prevention A TESCP Plan is provided integral with the drainage design drawing. The site is small and warrants only the normal placement of a downslope silt fence at its perimeter. A standard stabilized construction entrance BMP is provided for site entrance silt and debris protection of adjacent pavement. Core Requirement #6 - Maintenance and Operations An Operations and Maintenance Manual will be provided as part of the building permit process. A new manual will be provided in Exhibit B of a new Declaration of Covenant which is required by the City of Renton. Core Requirement #7 - Financial Guarantees and Liability The STE and Performance and Maintenance Bonds are required, and a right-of-way driveway installation. Core Requirement #8 - Water Quality The stormwater from the proposed driveway will sheet flow into the landscape area which will serve as a stormwater filter strip. The filter strip will provide the required stormwater treatment. The use of a catch basin with downturned elbows at the discharge overflow to the east will protect from serious oil and other contaminant spills or seeps from vehicular areas. Also, the roof of the residence is considered a non-polluting impervious surface. Core Requirement #9 - Flow Control BMP's Flow control will be obtained by the use of a Bioretention area with infiltration, The LID infiltration trench will infiltrate runoff from the proposed driveway to Lot 2. Core Requirement #10 - Special Reports and Studies: No previous reports or studies have been identified for this site, except for the older and more recent short plat. Copies of these documents were not available for review. Other Permits: Permits for normal residential construction such as plumbing, electrical, etc. will be required. A right- of-way permit is required for driveway installation. Special Requirements for Full Drainage Review: Special Requirement #1 - Other Adopted Requirements - None Special Requirement #2 - Flood Hazard Area - None Special Requirement #3 - Flood Protection None Special Requirement #4 - Source Control - None Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Special Requirement #5 - Oil Control - None Flow Control and Water Quality Facility Analysis and Design: Per the Core Requirements above, the stormwater from the impervious roof areas will flow to the existing storm system. Conveyance System Analysis and Design: 6” and 4” PVC pipe will be used in all stormwater locations. All slopes will be in excess of 2 percent due to the site topography, and are adequate by inspection. Minimum cover of 3 feet will be provided in any paved or concrete driveway areas. Special Reports and Studies: No special reports of studies were performed for this site. Previous short plat documents were not available for review. Other Permits: No special permits are required for site. The building permits are the only required permits for the construction. ESC Analysis and Design: As noted in the Core Requirements, the site is small and only requires the normal placement of downslope filter fence. A standard stabilized construction entrance will be used at the residence construction site entrance. Bond Quantities, Facility Summaries and Declaration of Covenant: A Declaration of Covenant with attached Operations and Maintenance Manual will be provided if previous documents are not considered applicable. Operations and Maintenance Manual: Provided with the Declaration of Covenant (see above note). Any questions, or comments may be sent via email or mail to the above address. Patrick E. Carroll, P.E. PEC Design and Consulting LLC 2621 NE 109th Street Vancouver, WA 98686 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B 11/23/2025 WWHM2012 PROJECT REPORT Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:02 PM Page 2 General Model Information WWHM2012 Project Name:Run 1 Site Name: Site Address: City: Report Date:11/14/2025 Gage:Seatac Data Start:1948/10/01 Data End:2009/09/30 Timestep:15 Minute Precip Scale:1.167 Version Date:2025/05/13 Version:4.3.2 POC Thresholds Low Flow Threshold for POC1:50 Percent of the 2 Year High Flow Threshold for POC1:50 Year Low Flow Threshold for POC2:50 Percent of the 2 Year High Flow Threshold for POC2:50 Year Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:02 PM Page 3 Landuse Basin Data Predeveloped Land Use Basin 1 Bypass:No GroundWater:No Pervious Land Use acre C, Forest, Flat 0.167 Pervious Total 0.167 Impervious Land Use acre Impervious Total 0 Basin Total 0.167 Element Flow Componants: Surface Interflow Groundwater Componant Flows To: POC 1 POC 1 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:02 PM Page 4 Basin 2 Bypass:No GroundWater:No Pervious Land Use acre C, Pasture, Flat 0.087 Pervious Total 0.087 Impervious Land Use acre Impervious Total 0 Basin Total 0.087 Element Flow Componants: Surface Interflow Groundwater Componant Flows To: POC 2 POC 2 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:02 PM Page 5 Mitigated Land Use Basin 1 Bypass:No GroundWater:No Pervious Land Use acre Pervious Total 0 Impervious Land Use acre ROOF TOPS FLAT 0.135 DRIVEWAYS FLAT 0.054 Impervious Total 0.189 Basin Total 0.189 Element Flow Componants: Surface Interflow Groundwater Componant Flows To: Surface retention 1 Surface retention 1 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:02 PM Page 6 Basin 2 Bypass:No GroundWater:No Pervious Land Use acre Pervious Total 0 Impervious Land Use acre ROADS FLAT 0.087 Impervious Total 0.087 Basin Total 0.087 Element Flow Componants: Surface Interflow Groundwater Componant Flows To: Surface retention 2 Surface retention 2 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:02 PM Page 7 Routing Elements Predeveloped Routing Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:02 PM Page 8 Mitigated Routing Bioretention 1 Bottom Length: 150.00 ft. Bottom Width: 3.80 ft. Material thickness of first layer: 1.5 Material type for first layer: SMMWW 12 in/hr Material thickness of second layer: 0 Material type for second layer: GRAVEL Material thickness of third layer: 0 Material type for third layer: GRAVEL Infiltration On Infiltration rate:0.17 Infiltration safety factor:0.5 Wetted surface area On Total Volume Infiltrated (ac-ft.):38.755 Total Volume Through Riser (ac-ft.):3.341 Total Volume Through Facility (ac-ft.):42.096 Percent Infiltrated:92.06 Total Precip Applied to Facility:8.937 Total Evap From Facility:2.471 Underdrain not used Discharge Structure Riser Height:0.5 ft. Riser Diameter:10 in. Element Outlets: Outlet 1 Outlet 2 Outlet Flows To: Bioretention Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)Infilt(cfs) 0.0000 0.0467 0.0000 0.0000 0.0000 0.0275 0.0463 0.0002 0.0000 0.0000 0.0549 0.0457 0.0003 0.0000 0.0000 0.0824 0.0450 0.0005 0.0000 0.0000 0.1099 0.0444 0.0007 0.0000 0.0000 0.1374 0.0437 0.0009 0.0000 0.0000 0.1648 0.0431 0.0011 0.0000 0.0005 0.1923 0.0425 0.0013 0.0000 0.0007 0.2198 0.0418 0.0016 0.0000 0.0010 0.2473 0.0412 0.0018 0.0000 0.0013 0.2747 0.0405 0.0020 0.0000 0.0016 0.3022 0.0399 0.0023 0.0000 0.0017 0.3297 0.0393 0.0025 0.0000 0.0017 0.3571 0.0386 0.0028 0.0000 0.0018 0.3846 0.0380 0.0030 0.0000 0.0018 0.4121 0.0374 0.0033 0.0000 0.0019 0.4396 0.0367 0.0036 0.0000 0.0019 0.4670 0.0361 0.0039 0.0000 0.0020 0.4945 0.0355 0.0042 0.0000 0.0020 0.5220 0.0348 0.0045 0.0000 0.0021 0.5495 0.0342 0.0048 0.0000 0.0021 0.5769 0.0336 0.0051 0.0000 0.0022 0.6044 0.0330 0.0054 0.0000 0.0022 0.6319 0.0323 0.0057 0.0000 0.0023 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:02 PM Page 9 0.6593 0.0317 0.0061 0.0000 0.0023 0.6868 0.0311 0.0064 0.0000 0.0024 0.7143 0.0305 0.0068 0.0000 0.0025 0.7418 0.0299 0.0072 0.0000 0.0025 0.7692 0.0293 0.0075 0.0000 0.0026 0.7967 0.0286 0.0079 0.0000 0.0026 0.8242 0.0280 0.0083 0.0000 0.0027 0.8516 0.0274 0.0087 0.0000 0.0027 0.8791 0.0268 0.0091 0.0000 0.0028 0.9066 0.0262 0.0095 0.0000 0.0028 0.9341 0.0256 0.0099 0.0000 0.0029 0.9615 0.0250 0.0103 0.0000 0.0029 0.9890 0.0244 0.0108 0.0000 0.0030 1.0165 0.0238 0.0112 0.0000 0.0030 1.0440 0.0232 0.0117 0.0000 0.0031 1.0714 0.0226 0.0121 0.0000 0.0031 1.0989 0.0220 0.0126 0.0000 0.0032 1.1264 0.0214 0.0131 0.0000 0.0033 1.1538 0.0208 0.0135 0.0000 0.0033 1.1813 0.0202 0.0140 0.0000 0.0034 1.2088 0.0196 0.0145 0.0000 0.0034 1.2363 0.0190 0.0150 0.0000 0.0035 1.2637 0.0184 0.0156 0.0000 0.0035 1.2912 0.0178 0.0161 0.0000 0.0036 1.3187 0.0172 0.0166 0.0000 0.0036 1.3462 0.0166 0.0171 0.0000 0.0037 1.3736 0.0160 0.0177 0.0000 0.0037 1.4011 0.0154 0.0182 0.0000 0.0038 1.4286 0.0148 0.0188 0.0000 0.0039 1.4560 0.0143 0.0194 0.0000 0.0039 1.4835 0.0137 0.0199 0.0000 0.0040 1.5000 0.0131 0.0203 0.0000 0.0040 Bioretention Surface Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)To Amended(cfs)Infilt(cfs) 1.5000 0.0467 0.0203 0.0000 0.0040 0.0001 1.5275 0.0474 0.0216 0.0000 0.0040 0.0001 1.5549 0.0480 0.0229 0.0000 0.0040 0.0002 1.5824 0.0487 0.0242 0.0000 0.0040 0.0002 1.6099 0.0493 0.0256 0.0000 0.0040 0.0003 1.6374 0.0500 0.0269 0.0000 0.0040 0.0003 1.6648 0.0506 0.0283 0.0000 0.0040 0.0004 1.6923 0.0513 0.0297 0.0000 0.0040 0.0004 1.7198 0.0520 0.0311 0.0000 0.0040 0.0005 1.7473 0.0526 0.0326 0.0000 0.0040 0.0006 1.7747 0.0533 0.0340 0.0000 0.0040 0.0006 1.8022 0.0539 0.0355 0.0000 0.0040 0.0007 1.8297 0.0546 0.0370 0.0000 0.0040 0.0007 1.8571 0.0553 0.0385 0.0000 0.0040 0.0008 1.8846 0.0559 0.0400 0.0000 0.0040 0.0008 1.9121 0.0566 0.0416 0.0000 0.0040 0.0009 1.9396 0.0573 0.0431 0.0000 0.0040 0.0010 1.9670 0.0580 0.0447 0.0000 0.0040 0.0010 1.9945 0.0586 0.0463 0.0000 0.0040 0.0011 2.0220 0.0593 0.0480 0.0288 0.0040 0.0011 2.0495 0.0600 0.0496 0.0971 0.0040 0.0012 2.0769 0.0606 0.0512 0.1877 0.0040 0.0013 2.1044 0.0613 0.0529 0.2949 0.0040 0.0013 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:02 PM Page 10 2.1319 0.0620 0.0546 0.4141 0.0040 0.0014 2.1593 0.0627 0.0563 0.5409 0.0040 0.0014 2.1868 0.0634 0.0581 0.6708 0.0040 0.0015 2.2143 0.0640 0.0598 0.7994 0.0040 0.0015 2.2418 0.0647 0.0616 0.9220 0.0040 0.0016 2.2692 0.0654 0.0634 1.0347 0.0040 0.0017 2.2967 0.0661 0.0652 1.1342 0.0040 0.0017 2.3242 0.0668 0.0670 1.2181 0.0040 0.0018 2.3516 0.0675 0.0688 1.2861 0.0040 0.0018 2.3791 0.0682 0.0707 1.3394 0.0040 0.0019 2.4066 0.0689 0.0726 1.3823 0.0040 0.0020 2.4341 0.0695 0.0745 1.4410 0.0040 0.0020 2.4615 0.0702 0.0764 1.4859 0.0040 0.0021 2.4890 0.0709 0.0783 1.5295 0.0040 0.0021 2.5000 0.0712 0.0791 1.5719 0.0040 0.0012 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:02 PM Page 11 Bioretention 2 Bottom Length: 54.00 ft. Bottom Width: 4.00 ft. Material thickness of first layer: 1.5 Material type for first layer: SMMWW 12 in/hr Material thickness of second layer: 0 Material type for second layer: GRAVEL Material thickness of third layer: 0 Material type for third layer: GRAVEL Infiltration On Infiltration rate:0.17 Infiltration safety factor:0.5 Wetted surface area On Total Volume Infiltrated (ac-ft.):17.217 Total Volume Through Riser (ac-ft.):1.912 Total Volume Through Facility (ac-ft.):19.129 Percent Infiltrated:90 Total Precip Applied to Facility:3.715 Total Evap From Facility:0.988 Underdrain not used Discharge Structure Riser Height:0.5 ft. Riser Diameter:10 in. Element Outlets: Outlet 1 Outlet 2 Outlet Flows To: Bioretention Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)Infilt(cfs) 0.0000 0.0188 0.0000 0.0000 0.0000 0.0275 0.0186 0.0001 0.0000 0.0000 0.0549 0.0183 0.0001 0.0000 0.0000 0.0824 0.0181 0.0002 0.0000 0.0000 0.1099 0.0178 0.0003 0.0000 0.0000 0.1374 0.0175 0.0003 0.0000 0.0000 0.1648 0.0172 0.0004 0.0000 0.0002 0.1923 0.0169 0.0005 0.0000 0.0003 0.2198 0.0167 0.0006 0.0000 0.0004 0.2473 0.0164 0.0007 0.0000 0.0005 0.2747 0.0161 0.0008 0.0000 0.0006 0.3022 0.0158 0.0009 0.0000 0.0006 0.3297 0.0155 0.0010 0.0000 0.0007 0.3571 0.0153 0.0010 0.0000 0.0007 0.3846 0.0150 0.0011 0.0000 0.0007 0.4121 0.0147 0.0013 0.0000 0.0007 0.4396 0.0145 0.0014 0.0000 0.0007 0.4670 0.0142 0.0015 0.0000 0.0008 0.4945 0.0139 0.0016 0.0000 0.0008 0.5220 0.0137 0.0017 0.0000 0.0008 0.5495 0.0134 0.0018 0.0000 0.0008 0.5769 0.0131 0.0019 0.0000 0.0008 0.6044 0.0129 0.0021 0.0000 0.0009 0.6319 0.0126 0.0022 0.0000 0.0009 0.6593 0.0124 0.0023 0.0000 0.0009 0.6868 0.0121 0.0025 0.0000 0.0009 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:02 PM Page 12 0.7143 0.0118 0.0026 0.0000 0.0010 0.7418 0.0116 0.0027 0.0000 0.0010 0.7692 0.0113 0.0029 0.0000 0.0010 0.7967 0.0111 0.0030 0.0000 0.0010 0.8242 0.0108 0.0032 0.0000 0.0010 0.8516 0.0106 0.0033 0.0000 0.0011 0.8791 0.0103 0.0035 0.0000 0.0011 0.9066 0.0101 0.0037 0.0000 0.0011 0.9341 0.0098 0.0038 0.0000 0.0011 0.9615 0.0096 0.0040 0.0000 0.0011 0.9890 0.0094 0.0042 0.0000 0.0012 1.0165 0.0091 0.0043 0.0000 0.0012 1.0440 0.0089 0.0045 0.0000 0.0012 1.0714 0.0086 0.0047 0.0000 0.0012 1.0989 0.0084 0.0049 0.0000 0.0013 1.1264 0.0082 0.0051 0.0000 0.0013 1.1538 0.0079 0.0052 0.0000 0.0013 1.1813 0.0077 0.0054 0.0000 0.0013 1.2088 0.0074 0.0056 0.0000 0.0014 1.2363 0.0072 0.0058 0.0000 0.0014 1.2637 0.0070 0.0060 0.0000 0.0014 1.2912 0.0068 0.0062 0.0000 0.0014 1.3187 0.0065 0.0065 0.0000 0.0015 1.3462 0.0063 0.0067 0.0000 0.0015 1.3736 0.0061 0.0069 0.0000 0.0015 1.4011 0.0058 0.0071 0.0000 0.0015 1.4286 0.0056 0.0073 0.0000 0.0015 1.4560 0.0054 0.0076 0.0000 0.0016 1.4835 0.0052 0.0078 0.0000 0.0016 1.5000 0.0050 0.0079 0.0000 0.0016 Bioretention Surface Hydraulic Table Stage(feet)Area(ac.)Volume(ac-ft.)Discharge(cfs)To Amended(cfs)Infilt(cfs) 1.5000 0.0188 0.0079 0.0000 0.0016 0.0000 1.5275 0.0191 0.0085 0.0000 0.0016 0.0000 1.5549 0.0194 0.0090 0.0000 0.0016 0.0001 1.5824 0.0197 0.0095 0.0000 0.0016 0.0001 1.6099 0.0200 0.0101 0.0000 0.0016 0.0001 1.6374 0.0203 0.0106 0.0000 0.0016 0.0001 1.6648 0.0205 0.0112 0.0000 0.0016 0.0002 1.6923 0.0208 0.0117 0.0000 0.0016 0.0002 1.7198 0.0211 0.0123 0.0000 0.0016 0.0002 1.7473 0.0214 0.0129 0.0000 0.0016 0.0003 1.7747 0.0217 0.0135 0.0000 0.0016 0.0003 1.8022 0.0220 0.0141 0.0000 0.0016 0.0003 1.8297 0.0223 0.0147 0.0000 0.0016 0.0003 1.8571 0.0226 0.0153 0.0000 0.0016 0.0004 1.8846 0.0230 0.0160 0.0000 0.0016 0.0004 1.9121 0.0233 0.0166 0.0000 0.0016 0.0004 1.9396 0.0236 0.0172 0.0000 0.0016 0.0004 1.9670 0.0239 0.0179 0.0000 0.0016 0.0005 1.9945 0.0242 0.0185 0.0000 0.0016 0.0005 2.0220 0.0245 0.0192 0.0288 0.0016 0.0005 2.0495 0.0248 0.0199 0.0971 0.0016 0.0005 2.0769 0.0251 0.0206 0.1877 0.0016 0.0006 2.1044 0.0254 0.0213 0.2949 0.0016 0.0006 2.1319 0.0257 0.0220 0.4141 0.0016 0.0006 2.1593 0.0261 0.0227 0.5409 0.0016 0.0006 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:02 PM Page 13 2.1868 0.0264 0.0234 0.6708 0.0016 0.0007 2.2143 0.0267 0.0241 0.7994 0.0016 0.0007 2.2418 0.0270 0.0249 0.9220 0.0016 0.0007 2.2692 0.0273 0.0256 1.0347 0.0016 0.0008 2.2967 0.0277 0.0264 1.1342 0.0016 0.0008 2.3242 0.0280 0.0271 1.2181 0.0016 0.0008 2.3516 0.0283 0.0279 1.2861 0.0016 0.0008 2.3791 0.0286 0.0287 1.3394 0.0016 0.0009 2.4066 0.0290 0.0295 1.3823 0.0016 0.0009 2.4341 0.0293 0.0303 1.4410 0.0016 0.0009 2.4615 0.0296 0.0311 1.4859 0.0016 0.0010 2.4890 0.0300 0.0319 1.5295 0.0016 0.0010 2.5000 0.0301 0.0322 1.5719 0.0016 0.0004 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:02 PM Page 14 Analysis Results POC 1 + Predeveloped x Mitigated Predeveloped Landuse Totals for POC #1 Total Pervious Area:0.167 Total Impervious Area:0 Mitigated Landuse Totals for POC #1 Total Pervious Area:0 Total Impervious Area:0.189 Flow Frequency Method:Log Pearson Type III 17B Flow Frequency Return Periods for Predeveloped. POC #1 Return Period Flow(cfs) 2 year 0.006524 5 year 0.010756 10 year 0.013968 25 year 0.018458 50 year 0.022099 100 year 0.025983 Flow Frequency Return Periods for Mitigated. POC #1 Return Period Flow(cfs) 2 year 0.06944 5 year 0.107136 10 year 0.127504 25 year 0.148172 50 year 0.16043 100 year 0.170496 Annual Peaks Annual Peaks for Predeveloped and Mitigated. POC #1 Year Predeveloped Mitigated 1949 0.008 0.046 1950 0.009 0.065 1951 0.013 0.075 1952 0.004 0.011 1953 0.004 0.044 1954 0.005 0.033 1955 0.008 0.063 1956 0.007 0.063 1957 0.006 0.091 1958 0.006 0.046 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:26 PM Page 15 1959 0.005 0.046 1960 0.010 0.075 1961 0.005 0.078 1962 0.004 0.000 1963 0.005 0.038 1964 0.006 0.036 1965 0.005 0.047 1966 0.004 0.016 1967 0.010 0.096 1968 0.006 0.045 1969 0.006 0.040 1970 0.005 0.037 1971 0.006 0.073 1972 0.010 0.081 1973 0.005 0.037 1974 0.005 0.035 1975 0.008 0.088 1976 0.006 0.047 1977 0.002 0.066 1978 0.005 0.039 1979 0.003 0.000 1980 0.015 0.102 1981 0.004 0.020 1982 0.010 0.136 1983 0.007 0.043 1984 0.004 0.010 1985 0.003 0.043 1986 0.011 0.076 1987 0.010 0.086 1988 0.004 0.018 1989 0.003 0.044 1990 0.028 0.158 1991 0.013 0.144 1992 0.005 0.036 1993 0.005 0.033 1994 0.002 0.000 1995 0.007 0.053 1996 0.016 0.083 1997 0.013 0.086 1998 0.004 0.062 1999 0.017 0.077 2000 0.005 0.036 2001 0.001 0.019 2002 0.007 0.115 2003 0.009 0.027 2004 0.011 0.166 2005 0.007 0.075 2006 0.007 0.057 2007 0.021 0.157 2008 0.022 0.143 2009 0.010 0.094 Ranked Annual Peaks Ranked Annual Peaks for Predeveloped and Mitigated. POC #1 Rank Predeveloped Mitigated 1 0.0279 0.1659 2 0.0220 0.1578 3 0.0207 0.1569 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:26 PM Page 16 4 0.0174 0.1441 5 0.0159 0.1428 6 0.0146 0.1362 7 0.0134 0.1152 8 0.0126 0.1017 9 0.0126 0.0956 10 0.0109 0.0941 11 0.0108 0.0910 12 0.0104 0.0881 13 0.0102 0.0864 14 0.0101 0.0859 15 0.0100 0.0826 16 0.0099 0.0814 17 0.0099 0.0782 18 0.0093 0.0771 19 0.0093 0.0764 20 0.0085 0.0752 21 0.0080 0.0750 22 0.0078 0.0750 23 0.0073 0.0729 24 0.0071 0.0656 25 0.0070 0.0647 26 0.0069 0.0630 27 0.0068 0.0630 28 0.0068 0.0617 29 0.0064 0.0566 30 0.0063 0.0528 31 0.0062 0.0468 32 0.0059 0.0466 33 0.0058 0.0465 34 0.0056 0.0461 35 0.0055 0.0461 36 0.0055 0.0449 37 0.0055 0.0440 38 0.0054 0.0439 39 0.0053 0.0434 40 0.0052 0.0428 41 0.0051 0.0397 42 0.0051 0.0392 43 0.0049 0.0382 44 0.0048 0.0373 45 0.0048 0.0369 46 0.0047 0.0365 47 0.0046 0.0363 48 0.0045 0.0362 49 0.0045 0.0351 50 0.0044 0.0333 51 0.0043 0.0328 52 0.0043 0.0273 53 0.0042 0.0204 54 0.0038 0.0195 55 0.0035 0.0183 56 0.0029 0.0161 57 0.0027 0.0113 58 0.0026 0.0098 59 0.0021 0.0000 60 0.0019 0.0000 61 0.0013 0.0000 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:26 PM Page 17 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:26 PM Page 18 Duration Flows The Duration Matching Failed Flow(cfs)Predev Mit Percentage Pass/Fail 0.0033 18444 8205 44 Pass 0.0035 16091 8098 50 Pass 0.0036 14320 8002 55 Pass 0.0038 12694 7899 62 Pass 0.0040 11176 7809 69 Pass 0.0042 9884 7723 78 Pass 0.0044 8816 7623 86 Pass 0.0046 7839 7533 96 Pass 0.0048 7005 7452 106 Fail 0.0050 6290 7375 117 Fail 0.0052 5679 7285 128 Fail 0.0054 5168 7191 139 Fail 0.0055 4697 7112 151 Fail 0.0057 4278 7030 164 Fail 0.0059 3903 6941 177 Fail 0.0061 3525 6842 194 Fail 0.0063 3183 6750 212 Fail 0.0065 2864 6663 232 Fail 0.0067 2592 6569 253 Fail 0.0069 2353 6481 275 Fail 0.0071 2138 6402 299 Fail 0.0073 1951 6299 322 Fail 0.0074 1795 6213 346 Fail 0.0076 1669 6128 367 Fail 0.0078 1514 6055 399 Fail 0.0080 1343 5991 446 Fail 0.0082 1222 5914 483 Fail 0.0084 1123 5839 519 Fail 0.0086 1042 5779 554 Fail 0.0088 969 5702 588 Fail 0.0090 910 5634 619 Fail 0.0092 838 5557 663 Fail 0.0094 766 5476 714 Fail 0.0095 704 5407 768 Fail 0.0097 633 5341 843 Fail 0.0099 570 5272 924 Fail 0.0101 488 5210 1067 Fail 0.0103 425 5142 1209 Fail 0.0105 376 5101 1356 Fail 0.0107 341 5046 1479 Fail 0.0109 307 4988 1624 Fail 0.0111 271 4926 1817 Fail 0.0113 235 4868 2071 Fail 0.0114 196 4798 2447 Fail 0.0116 171 4735 2769 Fail 0.0118 145 4682 3228 Fail 0.0120 125 4629 3703 Fail 0.0122 108 4573 4234 Fail 0.0124 95 4532 4770 Fail 0.0126 84 4472 5323 Fail 0.0128 71 4417 6221 Fail 0.0130 61 4348 7127 Fail 0.0132 55 4312 7840 Fail 0.0133 45 4265 9477 Fail Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:26 PM Page 19 0.0135 40 4205 10512 Fail 0.0137 37 4149 11213 Fail 0.0139 35 4107 11734 Fail 0.0141 29 4057 13989 Fail 0.0143 25 4004 16016 Fail 0.0145 22 3948 17945 Fail 0.0147 17 3899 22935 Fail 0.0149 15 3848 25653 Fail 0.0151 11 3794 34490 Fail 0.0152 9 3752 41688 Fail 0.0154 8 3709 46362 Fail 0.0156 8 3651 45637 Fail 0.0158 8 3595 44937 Fail 0.0160 7 3538 50542 Fail 0.0162 7 3499 49985 Fail 0.0164 7 3465 49500 Fail 0.0166 7 3424 48914 Fail 0.0168 7 3375 48214 Fail 0.0170 7 3343 47757 Fail 0.0172 7 3292 47028 Fail 0.0173 6 3253 54216 Fail 0.0175 5 3219 64380 Fail 0.0177 5 3183 63659 Fail 0.0179 5 3144 62880 Fail 0.0181 4 3112 77800 Fail 0.0183 4 3069 76725 Fail 0.0185 4 3033 75825 Fail 0.0187 4 2992 74800 Fail 0.0189 4 2964 74100 Fail 0.0191 4 2926 73150 Fail 0.0192 4 2898 72450 Fail 0.0194 4 2862 71550 Fail 0.0196 4 2823 70575 Fail 0.0198 4 2793 69825 Fail 0.0200 3 2757 91900 Fail 0.0202 3 2723 90766 Fail 0.0204 3 2686 89533 Fail 0.0206 3 2654 88466 Fail 0.0208 2 2627 131350 Fail 0.0210 2 2597 129850 Fail 0.0211 2 2560 128000 Fail 0.0213 2 2520 126000 Fail 0.0215 2 2494 124700 Fail 0.0217 2 2466 123300 Fail 0.0219 2 2440 122000 Fail 0.0221 1 2419 241900 Fail The development has an increase in flow durations from 1/2 Predeveloped 2 year flow to the 2 year flow or more than a 10% increase from the 2 year to the 50 year flow. The development has an increase in flow durations for more than 50% of the flows for the range of the duration analysis. Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:26 PM Page 20 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. Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:26 PM Page 21 POC 2 + Predeveloped x Mitigated Predeveloped Landuse Totals for POC #2 Total Pervious Area:0.087 Total Impervious Area:0 Mitigated Landuse Totals for POC #2 Total Pervious Area:0 Total Impervious Area:0.087 Flow Frequency Method:Log Pearson Type III 17B Flow Frequency Return Periods for Predeveloped. POC #2 Return Period Flow(cfs) 2 year 0.004366 5 year 0.007711 10 year 0.010579 25 year 0.015037 50 year 0.019025 100 year 0.023637 Flow Frequency Return Periods for Mitigated. POC #2 Return Period Flow(cfs) 2 year 0.032229 5 year 0.048302 10 year 0.058861 25 year 0.071939 50 year 0.081446 100 year 0.090737 Annual Peaks Annual Peaks for Predeveloped and Mitigated. POC #2 Year Predeveloped Mitigated 1949 0.007 0.029 1950 0.008 0.029 1951 0.007 0.036 1952 0.003 0.019 1953 0.002 0.023 1954 0.003 0.017 1955 0.005 0.033 1956 0.005 0.029 1957 0.004 0.047 1958 0.004 0.022 1959 0.003 0.025 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:50 PM Page 22 1960 0.007 0.036 1961 0.003 0.038 1962 0.002 0.008 1963 0.003 0.021 1964 0.004 0.022 1965 0.004 0.022 1966 0.002 0.017 1967 0.008 0.047 1968 0.004 0.022 1969 0.004 0.030 1970 0.003 0.023 1971 0.004 0.036 1972 0.007 0.039 1973 0.003 0.020 1974 0.004 0.037 1975 0.005 0.044 1976 0.004 0.032 1977 0.002 0.032 1978 0.003 0.025 1979 0.002 0.008 1980 0.012 0.053 1981 0.003 0.019 1982 0.008 0.065 1983 0.004 0.020 1984 0.003 0.018 1985 0.002 0.024 1986 0.006 0.038 1987 0.006 0.044 1988 0.003 0.017 1989 0.002 0.023 1990 0.026 0.078 1991 0.011 0.069 1992 0.004 0.020 1993 0.003 0.017 1994 0.002 0.000 1995 0.004 0.024 1996 0.011 0.041 1997 0.007 0.043 1998 0.004 0.030 1999 0.016 0.045 2000 0.003 0.018 2001 0.001 0.021 2002 0.006 0.056 2003 0.008 0.018 2004 0.007 0.088 2005 0.005 0.036 2006 0.004 0.027 2007 0.022 0.080 2008 0.015 0.067 2009 0.007 0.047 Ranked Annual Peaks Ranked Annual Peaks for Predeveloped and Mitigated. POC #2 Rank Predeveloped Mitigated 1 0.0256 0.0880 2 0.0216 0.0802 3 0.0157 0.0780 4 0.0155 0.0691 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:50 PM Page 23 5 0.0125 0.0673 6 0.0112 0.0652 7 0.0109 0.0561 8 0.0085 0.0532 9 0.0084 0.0474 10 0.0083 0.0466 11 0.0077 0.0466 12 0.0074 0.0453 13 0.0073 0.0439 14 0.0073 0.0438 15 0.0073 0.0426 16 0.0069 0.0406 17 0.0069 0.0389 18 0.0068 0.0382 19 0.0062 0.0381 20 0.0062 0.0368 21 0.0058 0.0361 22 0.0054 0.0361 23 0.0050 0.0358 24 0.0048 0.0355 25 0.0046 0.0326 26 0.0045 0.0323 27 0.0045 0.0319 28 0.0043 0.0303 29 0.0043 0.0296 30 0.0043 0.0295 31 0.0043 0.0287 32 0.0042 0.0285 33 0.0039 0.0269 34 0.0039 0.0252 35 0.0038 0.0247 36 0.0038 0.0244 37 0.0037 0.0243 38 0.0036 0.0233 39 0.0035 0.0233 40 0.0033 0.0229 41 0.0032 0.0224 42 0.0032 0.0221 43 0.0031 0.0221 44 0.0031 0.0216 45 0.0029 0.0214 46 0.0029 0.0212 47 0.0029 0.0204 48 0.0029 0.0202 49 0.0029 0.0200 50 0.0026 0.0193 51 0.0025 0.0187 52 0.0025 0.0183 53 0.0024 0.0182 54 0.0024 0.0175 55 0.0022 0.0172 56 0.0021 0.0168 57 0.0018 0.0168 58 0.0018 0.0166 59 0.0017 0.0080 60 0.0015 0.0076 61 0.0010 0.0000 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:50 PM Page 24 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:50 PM Page 25 Duration Flows The Duration Matching Failed Flow(cfs)Predev Mit Percentage Pass/Fail 0.0022 13670 9137 66 Pass 0.0024 11186 8921 79 Pass 0.0025 9212 8705 94 Pass 0.0027 7736 8491 109 Fail 0.0029 6494 8286 127 Fail 0.0030 5482 8068 147 Fail 0.0032 4731 7882 166 Fail 0.0034 4113 7685 186 Fail 0.0035 3544 7492 211 Fail 0.0037 3044 7309 240 Fail 0.0039 2622 7150 272 Fail 0.0041 2267 6968 307 Fail 0.0042 1981 6825 344 Fail 0.0044 1732 6667 384 Fail 0.0046 1477 6494 439 Fail 0.0047 1270 6316 497 Fail 0.0049 1135 6190 545 Fail 0.0051 1010 6042 598 Fail 0.0052 895 5899 659 Fail 0.0054 790 5766 729 Fail 0.0056 680 5642 829 Fail 0.0058 548 5525 1008 Fail 0.0059 439 5399 1229 Fail 0.0061 376 5270 1401 Fail 0.0063 293 5155 1759 Fail 0.0064 231 5056 2188 Fail 0.0066 180 4939 2743 Fail 0.0068 145 4821 3324 Fail 0.0069 118 4727 4005 Fail 0.0071 98 4626 4720 Fail 0.0073 80 4534 5667 Fail 0.0075 69 4415 6398 Fail 0.0076 62 4316 6961 Fail 0.0078 57 4218 7400 Fail 0.0080 50 4115 8230 Fail 0.0081 46 4038 8778 Fail 0.0083 38 3944 10378 Fail 0.0085 29 3861 13313 Fail 0.0086 24 3769 15704 Fail 0.0088 23 3685 16021 Fail 0.0090 22 3608 16400 Fail 0.0092 20 3533 17665 Fail 0.0093 17 3461 20358 Fail 0.0095 16 3386 21162 Fail 0.0097 16 3309 20681 Fail 0.0098 12 3260 27166 Fail 0.0100 12 3208 26733 Fail 0.0102 12 3136 26133 Fail 0.0103 12 3069 25575 Fail 0.0105 12 2990 24916 Fail 0.0107 11 2928 26618 Fail 0.0109 11 2866 26054 Fail 0.0110 10 2804 28040 Fail 0.0112 9 2729 30322 Fail Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:50 PM Page 26 0.0114 9 2678 29755 Fail 0.0115 9 2618 29088 Fail 0.0117 9 2556 28400 Fail 0.0119 9 2494 27711 Fail 0.0121 9 2445 27166 Fail 0.0122 8 2406 30075 Fail 0.0124 8 2355 29437 Fail 0.0126 7 2314 33057 Fail 0.0127 7 2263 32328 Fail 0.0129 7 2216 31657 Fail 0.0131 7 2165 30928 Fail 0.0132 7 2119 30271 Fail 0.0134 7 2068 29542 Fail 0.0136 7 2011 28728 Fail 0.0138 7 1978 28257 Fail 0.0139 7 1928 27542 Fail 0.0141 7 1877 26814 Fail 0.0143 7 1843 26328 Fail 0.0144 7 1799 25700 Fail 0.0146 7 1757 25100 Fail 0.0148 7 1723 24614 Fail 0.0149 6 1689 28150 Fail 0.0151 6 1655 27583 Fail 0.0153 6 1620 27000 Fail 0.0155 6 1590 26500 Fail 0.0156 5 1559 31179 Fail 0.0158 3 1522 50733 Fail 0.0160 2 1494 74700 Fail 0.0161 2 1471 73550 Fail 0.0163 2 1439 71950 Fail 0.0165 2 1402 70100 Fail 0.0166 2 1371 68550 Fail 0.0168 2 1350 67500 Fail 0.0170 2 1315 65750 Fail 0.0172 2 1289 64450 Fail 0.0173 2 1263 63150 Fail 0.0175 2 1235 61750 Fail 0.0177 2 1214 60700 Fail 0.0178 2 1197 59850 Fail 0.0180 2 1162 58100 Fail 0.0182 2 1133 56650 Fail 0.0183 2 1103 55150 Fail 0.0185 2 1079 53950 Fail 0.0187 2 1052 52600 Fail 0.0189 2 1028 51400 Fail 0.0190 2 1010 50500 Fail The development has an increase in flow durations from 1/2 Predeveloped 2 year flow to the 2 year flow or more than a 10% increase from the 2 year to the 50 year flow. The development has an increase in flow durations for more than 50% of the flows for the range of the duration analysis. Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:50 PM Page 27 Water Quality Water Quality BMP Flow and Volume for POC #2 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. Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:50 PM Page 28 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. Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:50 PM Page 29 Appendix Predeveloped Schematic Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:51 PM Page 30 Mitigated Schematic Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:51 PM Page 31 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 Run 1.wdm MESSU 25 PreRun 1.MES 27 PreRun 1.L61 28 PreRun 1.L62 30 POCRun 11.dat 31 POCRun 12.dat END FILES OPN SEQUENCE INGRP INDELT 00:15 PERLND 10 PERLND 13 COPY 501 COPY 502 DISPLY 1 DISPLY 2 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 2 Basin 2 MAX 1 2 31 9 END DISPLY-INFO1 END DISPLY COPY TIMESERIES # - # NPT NMN *** 1 1 1 501 1 1 502 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 13 C, Pasture, 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 13 0 0 1 0 0 0 0 0 0 0 0 0 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:51 PM Page 32 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 13 0 0 4 0 0 0 0 0 0 0 0 0 1 9 END PRINT-INFO PWAT-PARM1 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** 10 0 0 0 0 0 0 0 0 0 0 0 13 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 13 0 4.5 0.06 400 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 13 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 13 0.15 0.4 0.3 6 0.5 0.4 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 13 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 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:51 PM Page 33 <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 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Basin 1*** PERLND 10 0.167 COPY 501 12 PERLND 10 0.167 COPY 501 13 Basin 2*** PERLND 13 0.087 COPY 502 12 PERLND 13 0.087 COPY 502 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 COPY 502 OUTPUT MEAN 1 1 48.4 DISPLY 2 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 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:51 PM Page 34 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 1.167 PERLND 1 999 EXTNL PREC WDM 2 PREC ENGL 1.167 IMPLND 1 999 EXTNL PREC WDM 1 EVAP ENGL 0.76 PERLND 1 999 EXTNL PETINP WDM 1 EVAP ENGL 0.76 IMPLND 1 999 EXTNL PETINP END EXT SOURCES EXT TARGETS <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Volume-> <Member> Tsys Tgap Amd *** <Name> # <Name> # #<-factor->strg <Name> # <Name> tem strg strg*** COPY 501 OUTPUT MEAN 1 1 48.4 WDM 501 FLOW ENGL REPL COPY 502 OUTPUT MEAN 1 1 48.4 WDM 502 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 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:51 PM Page 35 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 Run 1.wdm MESSU 25 MitRun 1.MES 27 MitRun 1.L61 28 MitRun 1.L62 30 POCRun 11.dat 31 POCRun 12.dat END FILES OPN SEQUENCE INGRP INDELT 00:15 IMPLND 4 IMPLND 5 IMPLND 1 RCHRES 1 RCHRES 2 RCHRES 3 RCHRES 4 COPY 1 COPY 501 COPY 2 COPY 502 DISPLY 1 DISPLY 2 END INGRP END OPN SEQUENCE DISPLY DISPLY-INFO1 # - #<----------Title----------->***TRAN PIVL DIG1 FIL1 PYR DIG2 FIL2 YRND 1 Surface retention 1 MAX 1 2 30 9 2 Surface retention 2 MAX 1 2 31 9 END DISPLY-INFO1 END DISPLY COPY TIMESERIES # - # NPT NMN *** 1 1 1 501 1 1 2 1 1 502 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*** Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:51 PM Page 36 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 <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 5 DRIVEWAYS/FLAT 1 1 1 27 0 1 ROADS/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 5 0 0 1 0 0 0 1 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 4 1 9 5 0 0 4 0 0 0 1 9 1 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 5 0 0 0 0 0 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:51 PM Page 37 1 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 5 400 0.01 0.1 0.1 1 400 0.01 0.1 0.1 END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN 4 0 0 5 0 0 1 0 0 END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS 4 0 0 5 0 0 1 0 0 END IWAT-STATE1 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Basin 1*** IMPLND 4 0.135 RCHRES 1 5 IMPLND 5 0.054 RCHRES 1 5 Basin 2*** IMPLND 1 0.087 RCHRES 3 5 ******Routing****** IMPLND 4 0.135 COPY 1 15 IMPLND 5 0.054 COPY 1 15 IMPLND 1 0.087 COPY 2 15 RCHRES 1 1 RCHRES 2 8 RCHRES 3 1 RCHRES 4 8 RCHRES 2 1 COPY 501 17 RCHRES 1 1 COPY 501 17 RCHRES 4 1 COPY 502 17 RCHRES 3 1 COPY 502 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 COPY 502 OUTPUT MEAN 1 1 48.4 DISPLY 2 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 Surface retentio-010 3 1 1 1 28 0 1 2 Bioretention 1 2 1 1 1 28 0 1 3 Surface retentio-012 3 1 1 1 28 0 1 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:51 PM Page 38 4 Bioretention 2 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 2 1 0 0 0 0 0 0 0 0 0 3 1 0 0 0 0 0 0 0 0 0 4 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 2 4 0 0 0 0 0 0 0 0 0 1 9 3 4 0 0 0 0 0 0 0 0 0 1 9 4 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 6 0 0 0 0 0 0 0 2 2 2 2 2 2 0 1 0 0 4 5 0 0 0 0 0 0 0 0 2 2 2 2 2 3 0 1 0 0 4 5 6 0 0 0 0 0 0 0 2 2 2 2 2 4 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 0.0 0.0 2 2 0.03 0.0 0.0 0.0 0.0 3 3 0.01 0.0 0.0 0.0 0.0 4 4 0.01 0.0 0.0 0.0 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 6.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2 0 4.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3 0 4.0 5.0 6.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4 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 FTABLES FTABLE 2 56 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.046722 0.000000 0.000000 0.000000 0.027473 0.046332 0.000168 0.000000 0.000000 0.054945 0.045683 0.000343 0.000000 0.000000 0.082418 0.045036 0.000526 0.000000 0.000000 0.109890 0.044389 0.000716 0.000000 0.000000 0.137363 0.043744 0.000914 0.000000 0.000018 0.164835 0.043101 0.001119 0.000000 0.000455 0.192308 0.042458 0.001331 0.000000 0.000680 0.219780 0.041817 0.001550 0.000000 0.000969 0.247253 0.041177 0.001778 0.000000 0.001329 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:51 PM Page 39 0.274725 0.040538 0.002012 0.000000 0.001626 0.302198 0.039901 0.002254 0.000000 0.001677 0.329670 0.039264 0.002504 0.000000 0.001728 0.357143 0.038629 0.002761 0.000000 0.001779 0.384615 0.037996 0.003025 0.000000 0.001830 0.412088 0.037363 0.003297 0.000000 0.001882 0.439560 0.036732 0.003577 0.000000 0.001933 0.467033 0.036102 0.003864 0.000000 0.001985 0.494505 0.035473 0.004159 0.000000 0.002037 0.521978 0.034846 0.004461 0.000000 0.002089 0.549451 0.034219 0.004771 0.000000 0.002141 0.576923 0.033594 0.005089 0.000000 0.002193 0.604396 0.032970 0.005414 0.000000 0.002245 0.631868 0.032348 0.005747 0.000000 0.002297 0.659341 0.031727 0.006087 0.000000 0.002349 0.686813 0.031107 0.006436 0.000000 0.002402 0.714286 0.030488 0.006792 0.000000 0.002455 0.741758 0.029870 0.007155 0.000000 0.002507 0.769231 0.029254 0.007527 0.000000 0.002560 0.796703 0.028639 0.007906 0.000000 0.002613 0.824176 0.028025 0.008293 0.000000 0.002666 0.851648 0.027413 0.008687 0.000000 0.002719 0.879121 0.026801 0.009090 0.000000 0.002772 0.906593 0.026191 0.009500 0.000000 0.002826 0.934066 0.025582 0.009918 0.000000 0.002879 0.961538 0.024975 0.010344 0.000000 0.002933 0.989011 0.024368 0.010778 0.000000 0.002987 1.016484 0.023763 0.011220 0.000000 0.003040 1.043956 0.023160 0.011669 0.000000 0.003094 1.071429 0.022557 0.012127 0.000000 0.003148 1.098901 0.021956 0.012592 0.000000 0.003202 1.126374 0.021356 0.013066 0.000000 0.003257 1.153846 0.020757 0.013547 0.000000 0.003311 1.181319 0.020159 0.014036 0.000000 0.003365 1.208791 0.019563 0.014534 0.000000 0.003420 1.236264 0.018968 0.015039 0.000000 0.003474 1.263736 0.018374 0.015552 0.000000 0.003529 1.291209 0.017781 0.016074 0.000000 0.003584 1.318681 0.017190 0.016603 0.000000 0.003639 1.346154 0.016600 0.017140 0.000000 0.003694 1.373626 0.016011 0.017686 0.000000 0.003749 1.401099 0.015423 0.018240 0.000000 0.003805 1.428571 0.014837 0.018801 0.000000 0.003860 1.456044 0.014252 0.019371 0.000000 0.003915 1.483516 0.013668 0.019949 0.000000 0.003971 1.500000 0.013085 0.020383 0.000000 0.004004 END FTABLE 2 FTABLE 1 38 6 Depth Area Volume Outflow1 Outflow2 Outflow3 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.013085 0.000000 0.000000 0.000000 0.000056 0.027473 0.047372 0.001293 0.000000 0.004004 0.000056 0.054945 0.048024 0.002603 0.000000 0.004004 0.000112 0.082418 0.048678 0.003931 0.000000 0.004004 0.000168 0.109890 0.049332 0.005278 0.000000 0.004004 0.000224 0.137363 0.049988 0.006642 0.000000 0.004004 0.000280 0.164835 0.050645 0.008024 0.000000 0.004004 0.000336 0.192308 0.051303 0.009425 0.000000 0.004004 0.000393 0.219780 0.051963 0.010843 0.000000 0.004004 0.000449 0.247253 0.052623 0.012280 0.000000 0.004004 0.000506 0.274725 0.053285 0.013734 0.000000 0.004004 0.000563 0.302198 0.053948 0.015207 0.000000 0.004004 0.000619 0.329670 0.054613 0.016699 0.000000 0.004004 0.000676 0.357143 0.055279 0.018208 0.000000 0.004004 0.000733 0.384615 0.055946 0.019736 0.000000 0.004004 0.000791 0.412088 0.056614 0.021282 0.000000 0.004004 0.000848 0.439560 0.057283 0.022847 0.000000 0.004004 0.000905 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:51 PM Page 40 0.467033 0.057954 0.024429 0.000000 0.004004 0.000963 0.494505 0.058626 0.026031 0.000000 0.004004 0.001020 0.521978 0.059299 0.027651 0.028803 0.004004 0.001078 0.549451 0.059973 0.029289 0.097063 0.004004 0.001136 0.576923 0.060649 0.030946 0.187726 0.004004 0.001194 0.604396 0.061326 0.032621 0.294905 0.004004 0.001252 0.631868 0.062004 0.034316 0.414077 0.004004 0.001310 0.659341 0.062684 0.036028 0.540878 0.004004 0.001368 0.686813 0.063364 0.037760 0.670824 0.004004 0.001426 0.714286 0.064046 0.039510 0.799354 0.004004 0.001485 0.741758 0.064729 0.041279 0.922011 0.004004 0.001543 0.769231 0.065414 0.043066 1.034726 0.004004 0.001602 0.796703 0.066099 0.044873 1.134166 0.004004 0.001661 0.824176 0.066786 0.046698 1.218143 0.004004 0.001720 0.851648 0.067475 0.048543 1.286061 0.004004 0.001779 0.879121 0.068164 0.050406 1.339417 0.004004 0.001838 0.906593 0.068855 0.052288 1.382328 0.004004 0.001897 0.934066 0.069546 0.054189 1.441036 0.004004 0.001956 0.961538 0.070240 0.056109 1.485939 0.004004 0.002016 0.989011 0.070934 0.058048 1.529524 0.004004 0.002075 1.000000 0.071212 0.058829 1.571901 0.004004 0.002099 END FTABLE 1 FTABLE 4 56 5 Depth Area Volume Outflow1 Outflow2 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.018802 0.000000 0.000000 0.000000 0.027473 0.018629 0.000064 0.000000 0.000000 0.054945 0.018343 0.000130 0.000000 0.000000 0.082418 0.018058 0.000199 0.000000 0.000000 0.109890 0.017774 0.000271 0.000000 0.000000 0.137363 0.017492 0.000346 0.000000 0.000007 0.164835 0.017211 0.000424 0.000000 0.000173 0.192308 0.016931 0.000505 0.000000 0.000258 0.219780 0.016652 0.000588 0.000000 0.000368 0.247253 0.016375 0.000674 0.000000 0.000505 0.274725 0.016098 0.000763 0.000000 0.000618 0.302198 0.015823 0.000856 0.000000 0.000638 0.329670 0.015550 0.000951 0.000000 0.000658 0.357143 0.015277 0.001049 0.000000 0.000679 0.384615 0.015006 0.001150 0.000000 0.000699 0.412088 0.014736 0.001253 0.000000 0.000719 0.439560 0.014467 0.001360 0.000000 0.000740 0.467033 0.014200 0.001470 0.000000 0.000760 0.494505 0.013933 0.001583 0.000000 0.000781 0.521978 0.013668 0.001699 0.000000 0.000802 0.549451 0.013404 0.001818 0.000000 0.000823 0.576923 0.013142 0.001940 0.000000 0.000844 0.604396 0.012881 0.002066 0.000000 0.000865 0.631868 0.012621 0.002194 0.000000 0.000886 0.659341 0.012362 0.002325 0.000000 0.000907 0.686813 0.012104 0.002460 0.000000 0.000929 0.714286 0.011848 0.002598 0.000000 0.000950 0.741758 0.011593 0.002739 0.000000 0.000972 0.769231 0.011339 0.002883 0.000000 0.000994 0.796703 0.011087 0.003030 0.000000 0.001015 0.824176 0.010835 0.003180 0.000000 0.001037 0.851648 0.010585 0.003334 0.000000 0.001060 0.879121 0.010337 0.003491 0.000000 0.001082 0.906593 0.010089 0.003651 0.000000 0.001104 0.934066 0.009843 0.003815 0.000000 0.001126 0.961538 0.009598 0.003981 0.000000 0.001149 0.989011 0.009354 0.004151 0.000000 0.001171 1.016484 0.009111 0.004325 0.000000 0.001194 1.043956 0.008870 0.004501 0.000000 0.001217 1.071429 0.008630 0.004682 0.000000 0.001240 1.098901 0.008391 0.004865 0.000000 0.001263 1.126374 0.008154 0.005052 0.000000 0.001286 1.153846 0.007917 0.005242 0.000000 0.001309 1.181319 0.007682 0.005436 0.000000 0.001333 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:51 PM Page 41 1.208791 0.007448 0.005633 0.000000 0.001356 1.236264 0.007216 0.005833 0.000000 0.001380 1.263736 0.006984 0.006037 0.000000 0.001403 1.291209 0.006754 0.006245 0.000000 0.001427 1.318681 0.006526 0.006456 0.000000 0.001451 1.346154 0.006298 0.006670 0.000000 0.001475 1.373626 0.006072 0.006888 0.000000 0.001499 1.401099 0.005847 0.007110 0.000000 0.001523 1.428571 0.005623 0.007335 0.000000 0.001548 1.456044 0.005400 0.007563 0.000000 0.001572 1.483516 0.005179 0.007796 0.000000 0.001597 1.500000 0.004959 0.007970 0.000000 0.001611 END FTABLE 4 FTABLE 3 38 6 Depth Area Volume Outflow1 Outflow2 Outflow3 Velocity Travel Time*** (ft) (acres) (acre-ft) (cfs) (cfs) (cfs) (ft/sec) (Minutes)*** 0.000000 0.004959 0.000000 0.000000 0.000000 0.000025 0.027473 0.019090 0.000520 0.000000 0.001611 0.000025 0.054945 0.019379 0.001049 0.000000 0.001611 0.000050 0.082418 0.019670 0.001585 0.000000 0.001611 0.000074 0.109890 0.019962 0.002130 0.000000 0.001611 0.000099 0.137363 0.020255 0.002682 0.000000 0.001611 0.000125 0.164835 0.020550 0.003243 0.000000 0.001611 0.000150 0.192308 0.020845 0.003811 0.000000 0.001611 0.000175 0.219780 0.021142 0.004388 0.000000 0.001611 0.000201 0.247253 0.021440 0.004973 0.000000 0.001611 0.000226 0.274725 0.021740 0.005566 0.000000 0.001611 0.000252 0.302198 0.022041 0.006167 0.000000 0.001611 0.000278 0.329670 0.022343 0.006777 0.000000 0.001611 0.000303 0.357143 0.022646 0.007395 0.000000 0.001611 0.000329 0.384615 0.022950 0.008021 0.000000 0.001611 0.000356 0.412088 0.023256 0.008656 0.000000 0.001611 0.000382 0.439560 0.023563 0.009299 0.000000 0.001611 0.000408 0.467033 0.023871 0.009951 0.000000 0.001611 0.000434 0.494505 0.024180 0.010611 0.000000 0.001611 0.000461 0.521978 0.024491 0.011279 0.028803 0.001611 0.000488 0.549451 0.024803 0.011957 0.097063 0.001611 0.000514 0.576923 0.025116 0.012642 0.187726 0.001611 0.000541 0.604396 0.025431 0.013337 0.294905 0.001611 0.000568 0.631868 0.025746 0.014040 0.414077 0.001611 0.000595 0.659341 0.026063 0.014751 0.540878 0.001611 0.000622 0.686813 0.026381 0.015472 0.670824 0.001611 0.000650 0.714286 0.026701 0.016201 0.799354 0.001611 0.000677 0.741758 0.027021 0.016939 0.922011 0.001611 0.000704 0.769231 0.027343 0.017685 1.034726 0.001611 0.000732 0.796703 0.027666 0.018441 1.134166 0.001611 0.000760 0.824176 0.027991 0.019206 1.218143 0.001611 0.000788 0.851648 0.028316 0.019979 1.286061 0.001611 0.000815 0.879121 0.028643 0.020761 1.339417 0.001611 0.000844 0.906593 0.028971 0.021553 1.382328 0.001611 0.000872 0.934066 0.029301 0.022353 1.441036 0.001611 0.000900 0.961538 0.029631 0.023163 1.485939 0.001611 0.000928 0.989011 0.029963 0.023981 1.529524 0.001611 0.000957 1.000000 0.030096 0.024311 1.571901 0.001611 0.000968 END FTABLE 3 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 1.167 PERLND 1 999 EXTNL PREC WDM 2 PREC ENGL 1.167 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 WDM 2 PREC ENGL 1.167 RCHRES 1 EXTNL PREC WDM 2 PREC ENGL 1.167 RCHRES 3 EXTNL PREC WDM 1 EVAP ENGL 0.5 RCHRES 1 EXTNL POTEV Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:51 PM Page 42 WDM 1 EVAP ENGL 0.76 RCHRES 2 EXTNL POTEV WDM 1 EVAP ENGL 0.5 RCHRES 3 EXTNL POTEV WDM 1 EVAP ENGL 0.76 RCHRES 4 EXTNL POTEV 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 2 HYDR RO 1 1 1 WDM 1000 FLOW ENGL REPL RCHRES 2 HYDR O 1 1 1 WDM 1001 FLOW ENGL REPL RCHRES 2 HYDR O 2 1 1 WDM 1002 FLOW ENGL REPL RCHRES 2 HYDR STAGE 1 1 1 WDM 1003 STAG ENGL REPL RCHRES 1 HYDR STAGE 1 1 1 WDM 1004 STAG ENGL REPL RCHRES 1 HYDR O 1 1 1 WDM 1005 FLOW 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 RCHRES 4 HYDR RO 1 1 1 WDM 1006 FLOW ENGL REPL RCHRES 4 HYDR O 1 1 1 WDM 1007 FLOW ENGL REPL RCHRES 4 HYDR O 2 1 1 WDM 1008 FLOW ENGL REPL RCHRES 4 HYDR STAGE 1 1 1 WDM 1009 STAG ENGL REPL RCHRES 3 HYDR STAGE 1 1 1 WDM 1010 STAG ENGL REPL RCHRES 3 HYDR O 1 1 1 WDM 1011 FLOW ENGL REPL COPY 2 OUTPUT MEAN 1 1 48.4 WDM 702 FLOW ENGL REPL COPY 502 OUTPUT MEAN 1 1 48.4 WDM 802 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 8 RCHRES OFLOW OVOL 2 RCHRES INFLOW IVOL END MASS-LINK 8 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 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:51 PM Page 43 Predeveloped HSPF Message File Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:51 PM Page 44 Mitigated HSPF Message File Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B Run 1 11/14/2025 5:13:51 PM Page 45 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. 2005-2025; 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 Docusign Envelope ID: B921B7E6-8EEC-41CB-AEB9-20EA0F80435B