DRAINAGE REPORT FOR. Creeks Crossing

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DRAINAGE REPORT FOR Creeks Crossing LOCATED AT: Galloway Road North Lakeland, Florida 33810 PREPARED FOR: Southern Homes/LM Properties OWNER: Heritage Investments of Polk, LLC PREPARED BY: SUBMITTED TO: Polk County SWFWMD PRINTED COPIES OF THIS DOCUMENT ARE NOT CONSIDERED SIGNED AND SEALED AND THE SHA-1 AUTHENTICATION CODE MUST BE VERIFIED ON ANY ELECTRONIC COPIES. THIS ITEM HAS BEEN ELECTRONICALLY SIGNED AND SEALED BY SANTOS MEDINA III, PE ON 06/30/16 USING A SHA-1 AUTHENTICATION CODE. Submitted: June 30, 2016 Santos Medina III, P.E. FL Reg #74539 FL CA #26247 Date

TABLE OF CONTENTS STORMWATER MANAGEMENT DESIGN SUMMARY...Chapter 1 Narrative References and Resources Floodplain Model Input Parameters Drainage Design Methodology Erosion Control Measures Operation and Maintenance Utilities EXHIBITS...Chapter 2 Map A Vicinity Map B USGS Quad Map C Site Map D Soils Map E Aerial Map F FEMA FIRM Map G Pre Development Basin Map Map H Post Development Basin Map SCS Data...Chapter 3 Curve Numbers WATER QUALITY...Chapter 4 Pond 100 WATER QUANTITY & FLOOD ROUTING...Chapter 5 ICPR Flood Routing STORM SEWER DESIGN...Chapter 6 SWALE DESIGN...Chapter 7 GEOTECH REPORT... Appendix A

CHAPTER 1 Stormwater Management Design Summary

Narrative Southern Homes is proposing a 45 lot residential development with stormwater improvements in Polk County, FL in Section 03, Township 28 S, Range 23 E. The project s parcel id numbers are 23-28-03-000000-042030 & 23-28-03-000000- 043210. Pickett Engineering, Inc. (PEI) has been retained to obtain a Level 2 Construction Permit from Polk County and a SWFWMD ERP for construction of a Stormwater Management system. This report contains the drainage design that supports the proposed improvements associated with the project. The system is designed to meet the rules and regulations concerning water quality and quantity as set forth by Polk County and the SWFWMD. The site is not part of an existing permit. The enclosed report provides detailed engineering calculations to aid the construction plans. Stormwater runoff of the impervious and pervious areas will be conveyed to one wet detention pond (Pond 100) for water quality and attenuation. References and Resources The following references and resources were used for this design: SWFWMD Applicant Handbook, Part III & IV State of Florida Department of Transportation Drainage Manual Polk County Land Development Code TR-55 Urban Hydrology for Small Watersheds Interconnected Channel and Pond Routing (ICPR) v3.10 with Perc Pack Floodplain According to the new FEMA Flood Zone Maps produced by Fema & Polk County, the site is not located within a 100-year flood zone.

Model Input Parameters Groundwater Conditions The seasonal high water table elevations used in the storm water calculations were determined from soil boring data performed on site by Imperial Testing Laboratories, INC, located in Appendix A. The SHWT over the site was found to range from 5.0 inches to 18 inches below existing grade. Time of Concentration/Curve Numbers Composite curve numbers were created using procedures set forth in the TR-55 manual. Soil conditions were analyzed using the included Geotechnical Report, site observations, and the USDA web soil survey. Per the FDOT Drainage Manual, a minimum time of concentration of 10 minutes was used for either post development or pre development. See Chapter 3 for detailed Curve Number and Time of Concentration calculations. Drainage Basins The post-development drainage basins for the site were determined using the proposed grading and drainage plan. Pre-development basins were determined using 1-foot topographic survey information for the subject property. See Chapter 2 for detailed Basin Maps. Drainage Design Methodology Water Quality One hundred percent of all post development storm water runoff will be captured and treated in the wet retention Pond 100. A water treatment analysis was performed for the proposed impervious areas. See Chapter 4 for the water quality treatment volume model and more details. Water Quantity The 100 year/24 hour and the 25 year/24 hour design storm events were used to model the flood routing in accordance with SWFWMD and Polk County requirements. The post-development discharge rates and volume rates will be less than that of the pre-development; therefore, no off-site impacts will occur due to the proposed development. The project is located within an open basin. See Chapter 5 for the water quantity and flood routing model.

Storm Sewer The storm sewer system was designed utilizing a minimum diameter of 15 inches and a maximum diameter of 30 inches while setting pipe slopes at minimum grades to maintain reasonable velocities. The inlets and pipes will capture all storm water runoff on our site. The pipe capacity at minimum slopes exceeds the maximum inflows of the design storm. Please see Chapter 6 for more details. Erosion Control Measures All vegetative cover will be placed as soon as possible on all exposed land. These areas will be stabilized before any pause of construction. Silt fences will be installed along the perimeter of the project area to protect against adverse water quality impact during construction. Operation and Maintenance The developer will operate and maintain the stormwater management facilities as designed by the engineer. They will have the grassed areas mowed as necessary. Any debris or trash accumulated in the pond will be collected and disposed of properly. All SWM structures will be routinely inspected for accumulation of trash and sediments and be cleaned as required. Erosion in the ponds will be restored to the original condition promptly. Utilities Potable water will be provided by the City of Lakeland Water Department. No centralized sanitary sewer is located adjacent to the project; therefore, the proposed lots will use a septic tank and drain field.

CHAPTER 2 Exhibits

LEGEND GREEN TEXT BLUE TEXT RED TEXT NODE NAME BASIN NAME LINK NAME NODE LINE BASIN LINE LINK LINE 0' NORTH SCALE: 1" = 150' 75' 150' DESIGNED BY: CB DRAWN BY: DH CHECKED BY: SM NO. DATE APPROVED DESCRIPTION S-106 P-104 S-100 S-100 S-102 S-106 S-112 P-116 S-107 P-114 S-113 S-106 P-117 P-115 S-110 S-110 S-108 S-108 P-112 P-113 Pickett 150 SOUTH WOODLAWN AVENUE, BARTOW, FL 33830 PHONE: (863) 800-3046 FAX: (863) 800-1159 FLORIDA CERTIFICATE OF AUTHORIZATION (FLCA) #26247 S-101 P-105 S-101 S-103 S-103 P-105(1) P-109 P-110 P-111 S-104 S-104 S-105 POND 200 BASIN 200 S-109 P-107 S-111 SOUTHERN HOLDINGS OF POLK COUNTY, LLC CLIENT: S-109 CREEKS CROSSING PROJECT: BASIN 100 POND 100 PROJECT NO. POST DEVELOPMENT 1BASIN MAP SHEET 0 N GALLOWAY RD, LAKELAND FLORIDA 33810 1422 OF 1

CHAPTER 3 SCS DATA

Curve Number Calculation Creeks Crossing, PEI Job #1422 A. Basin: A B. Total Area (ac): 26.234 C. Curve Number: Cover Type Condition Soil Group CN Area Product Pervious Areas OpenSpace Good A 39 13.117 511.563 OpenSpace Good D 80 13.117 1049.360 Impervious Areas Impervious Stormwater TOB A 100 0.000 0.000 Impervious Building/Misc. A 100 0.000 0.000 Impervious Pavement/Conc. A 98 0.000 0.000 Total impervious area (excluding pond TOB) = 0.000 Total contributing area (excluding pond TOB) = 26.234 % DCIA for contributing area = 0.00% Sum: 26.234 1560.923 1560.923 Weighted Curve Number: = 60 26.234 Notes: * All information is referenced from TR-55, Urban Hydrology for Small Watersheds, Second Edition, June 1986 1 Poor condition (cover <50% or heavily grazed) 2 Fair condition (cover 50% to 75% or not heavily grazed) 3 Good condition (cover >75% or lightly grazed) 4 Roadway cover types include right-of-way 5 Open Space cover types include lawns, parks, golf courses, etc. 6 Pasture cover types include grasslands or ranges

Curve Number Calculation Creeks Crossing, PEI Job #1422 A. Basin: 100 (Overall) B. Total Area (ac): 26.234 C. Curve Number: Cover Type Condition Soil Group CN Area Product Pervious Areas OpenSpace Good A 39 7.727 301.334 OpenSpace Good D 80 7.727 618.120 Impervious Areas Impervious Stormwater TOB A 100 4.575 457.500 Impervious Building/Misc. A 100 3.616 361.600 Impervious Pavement/Conc. A 98 2.590 253.820 Total impervious area (excluding pond TOB) = 6.206 Total contributing area (excluding pond TOB) = 21.659 % DCIA for contributing area = 28.65% Sum: 26.234 1992.374 1992.374 Weighted Curve Number: = 76 26.234 Notes: * All information is referenced from TR-55, Urban Hydrology for Small Watersheds, Second Edition, June 1986 1 Poor condition (cover <50% or heavily grazed) 2 Fair condition (cover 50% to 75% or not heavily grazed) 3 Good condition (cover >75% or lightly grazed) 4 Roadway cover types include right-of-way 5 Open Space cover types include lawns, parks, golf courses, etc. 6 Pasture cover types include grasslands or ranges

CHAPTER 4 Water Quality

POND 100

Treatment Volumes - SWFWMD Creeks Crossing, PEI Job #1422 Basin Treatment Type Basin Area (ac) Treatment Volume (ac-ft) per Nutrient Loading WMD Basin Criteria OFW? Req'd Vol (ac-ft) Req'd Vol (cf) 100 (Overall) Wet Detention 26.234 2.186 2.186 95,229 SWFWMD Basin Criteria Wet Detention Effluent Filtration Exfiltration On-line Retention Off-line Retention 1 " over basin 0.5 " over basin 0.5 " over basin 0.5 " over basin 0.5 " over basin Discharge to Outstanding Florida Waters: Treat 50% more than WMD basin criteria.

Retention Stage-Storage & Treatment Elevation Creeks Crossing, PEI Job #1422 Pond: 100 (Overall) Elevation Area (ft 2 ) Area (ac) Top 154.00 171,693 3.942 Control 152.00 151,121 3.469 STAGE DEPTH VOLUME VOLUME (ft) (ft) (ft 3 ) (ac-ft) 152.00 0.00 0 0.000 152.07 0.07 10,821 0.248 152.14 0.14 21,694 0.498 152.21 0.21 32,619 0.749 152.29 0.29 43,597 1.001 152.36 0.36 54,628 1.254 152.43 0.43 65,711 1.509 152.50 0.50 76,846 1.764 152.57 0.57 88,034 2.021 152.64 0.64 99,275 2.279 152.71 0.71 110,568 2.538 152.79 0.79 121,913 2.799 152.86 0.86 133,311 3.060 152.93 0.93 144,761 3.323 153.00 1.00 156,264 3.587 153.07 1.07 167,819 3.853 153.14 1.14 179,427 4.119 153.21 1.21 191,087 4.387 153.29 1.29 202,800 4.656 153.36 1.36 214,565 4.926 153.43 1.43 226,383 5.197 153.50 1.50 238,253 5.470 153.57 1.57 250,176 5.743 153.64 1.64 262,151 6.018 153.71 1.71 274,179 6.294 153.79 1.79 286,259 6.572 153.86 1.86 298,391 6.850 153.93 1.93 310,576 7.130 154.00 2.00 322,814 7.411 ft 3 ac-ft Req. Treatment Vol: 95,229 2.186 Min Req. Treatment Elev: 152.62 ft ft 3 ac-ft Provided Treatment Vol: 238,253 5.470 Weir Design Elev: 153.50 ft Notes:

Pond: 100 A: Pool Volume Required Drainage area (A): 26.234 ac Runoff coef (C): 0.59 Wet season rainfall depth (D): 31 in Length of wet season (WS): 121 days Residence time (R): 14 days PPV req = (A)(C)(D)(R) (WS)(12 in/ft) PPV req = 4.626 ac-ft B: Pool Volume Provided Control elevation: Area @ control elevation: 152.00 ft 3.469 ac Littoral shelf elevation: Area @ littoral shelf: 150.50 ft 3.131 ac Area @ Stage 1: Bottom elevation: Area @ bottom: 2.029 ac 135.50 ft 0.019 ac PPV provided = 20.312 ac-ft Perm Pool Vol

A. SITE INFORMATION Site Ac. = 26.23 Acres 22,220 = the minimum littoral shelf DER Elev. = 152.62 Feet DER Area = 157,377 Sq. Ft. area in square feet. NWL = 152.00 Feet NWL Area = 151,121 Sq. Ft. Runoff = 1.0 Inches (OFW?) 96,251 Cu.Ft. of treatent volume Head (h) = 0.49 Feet h = DER Elev. - (NWL + ½d) Required Volume = 95,229 Cu.Ft. or 2.19 Ac.Ft. B. VERTICAL CIRCULAR ORIFICE FLOW Q = C a (2 g h) ½ Diameter (d) = Orifice Area (a) = C Value = ½ Vol.Time = Total Time = 3.25 Inches 0.0576 Sq.Ft. 0.60 Coefficient of discharge 63.87 Hours 214.61 Hours Head Increm. Total Flow Delta Delta Cum. Elevation h (Ft.) h (Ft.) Q Q Avg. Volume Hours Hours sqrt(2 g h) 152.62 0.49 0.19 5.61 0.01 0.19 1,921 2.77 152.61 0.48 0.19 2.77 5.54 0.01 0.19 1,919 2.80 152.60 0.46 0.19 5.57 5.47 0.01 0.19 1,918 2.84 152.59 0.45 0.19 8.41 5.39 0.01 0.19 1,916 2.87 152.58 0.44 0.18 11.28 5.32 0.01 0.18 1,914 2.91 152.56 0.43 0.18 14.19 5.25 0.01 0.18 1,912 2.95 152.55 0.42 0.18 17.14 5.17 0.01 0.18 1,910 2.99 152.54 0.40 0.18 20.13 5.09 0.01 0.17 1,908 3.03 152.53 0.39 0.17 23.17 5.02 0.01 0.17 1,906 3.08 152.51 0.38 0.17 26.25 4.94 0.01 0.17 1,905 3.12 152.50 0.37 0.17 29.37 4.86 0.01 0.17 1,903 3.17 152.49 0.35 0.17 32.54 4.78 0.01 0.16 1,901 3.23 152.48 0.34 0.16 35.77 4.69 0.01 0.16 1,899 3.28 152.47 0.33 0.16 39.05 4.61 0.01 0.16 1,897 3.34 152.45 0.32 0.16 42.39 4.52 0.01 0.15 1,895 3.40 152.44 0.31 0.15 45.79 4.43 0.01 0.15 1,893 3.47 152.43 0.29 0.15 49.26 4.34

0.01 0.15 1,892 3.54 152.42 0.28 0.15 52.79 4.25 0.01 0.15 1,890 3.61 152.40 0.27 0.14 56.40 4.16 0.01 0.14 1,888 3.69 152.39 0.26 0.14 60.09 4.06 0.01 0.14 1,886 3.77 152.38 0.24 0.14 63.87 3.97 0.01 0.14 1,884 3.87 152.37 0.23 0.13 67.73 3.87 0.01 0.13 1,882 3.97 152.36 0.22 0.13 71.70 3.76 0.01 0.13 1,880 4.07 152.34 0.21 0.13 75.77 3.66 0.01 0.12 1,878 4.19 152.33 0.20 0.12 79.96 3.55 0.01 0.12 1,877 4.32 152.32 0.18 0.12 84.28 3.44 0.01 0.12 1,875 4.46 152.31 0.17 0.11 88.75 3.32 0.01 0.11 1,873 4.62 152.29 0.16 0.11 93.36 3.20 0.01 0.11 1,871 4.80 152.28 0.15 0.11 98.16 3.07 0.01 0.10 1,869 5.00 152.27 0.13 0.10 103.16 2.94 0.01 0.10 1,867 5.22 152.26 0.12 0.10 108.38 2.80 0.01 0.09 1,865 5.49 152.25 0.11 0.09 113.86 2.66 0.01 0.09 1,864 5.79 152.23 0.10 0.09 119.66 2.51 0.01 0.08 1,862 6.16 152.22 0.09 0.08 125.82 2.35 0.01 0.08 1,860 6.61 152.21 0.07 0.08 132.44 2.17 0.01 0.07 1,858 7.19 152.20 0.06 0.07 139.62 1.98 0.01 0.06 1,856 7.94 152.18 0.05 0.06 147.56 1.77 0.01 0.06 1,854 9.00 152.17 0.04 0.05 156.57 1.54 0.01 0.05 1,852 10.67 152.16 0.02 0.04 167.24 1.25 0.01 0.04 1,851 13.89 152.15 0.01 0.03 181.13 0.89 0.01 0.02 1,848 33.48 152.14 0.00 0.00 214.61 0.00 75,400 C. 36 HOUR BLEEDDOWN CALCULATIONS Side Slopes = 4.0 TO 1 Centerline Surface Area DER = 157,377 SQ. FT. Orifice Treatment Surface Area NWL = 151,121 SQ. FT. Elevation Volume 152.14 96,251

CHAPTER 5 Water Quantity & Flood Routing

Nodes A Stage/Area V Stage/Volume T Time/Stage M Manhole Basins O Overland Flow U SCS Unit CN S SBUH CN Y SCS Unit GA Z SBUH GA Links P Pipe W Weir C Channel D Drop Structure B Bridge R Rating Curve H Breach E Percolation F Filter X Exfil Trench T:A U:A A:100 U:100 W:O-100 W:W-100 T:OFFSITE Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc.

Max Warning Max Delta Max Surf Max Max Name Simulation Stage Stage Stage Area Inflow Outflow ft ft ft ft2 cfs cfs 100 100yr24hr 154.560 154.000 0.0050 177484 123.792 33.138 100 25yr24hr 153.957 154.000 0.0050 171269 75.434 7.736 A 25yr24hr 0.000 0.000 0.0000 0 28.811 0.000 OFFSITE 25yr24hr 151.500 151.500 0.0000 0 7.736 0.000 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 1 of 1

Simulation Node Group Time Stage Warning Surface Total Total Total Total Stage Area Inflow Outflow Vol In Vol Out hrs ft ft ft2 cfs cfs af af 25yr24hr A BASE 0.00 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 0.18 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 0.34 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 0.50 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 0.68 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 0.85 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 1.02 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 1.18 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 1.35 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 1.52 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 1.68 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 1.85 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 2.02 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 2.18 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 2.35 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 2.52 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 2.68 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 2.85 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 3.02 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 3.18 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 3.35 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 3.52 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 3.68 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 3.85 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 4.02 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 4.18 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 4.35 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 4.52 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 4.68 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 4.85 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 5.02 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 5.18 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 5.35 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 5.52 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 5.68 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 5.85 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 6.02 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 6.18 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 6.35 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 6.52 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 6.68 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 6.85 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 7.02 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 7.18 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 7.35 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 7.52 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 7.68 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 7.85 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 8.02 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 8.18 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 8.35 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 8.52 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 8.68 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 8.85 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 9.02 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 9.18 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 9.35 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 9.52 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 9.68 0.000 0.000 0 0.000 0.000 0.0 0.0 25yr24hr A BASE 9.85 0.000 0.000 0 0.002 0.000 0.0 0.0 25yr24hr A BASE 10.02 0.000 0.000 0 0.015 0.000 0.0 0.0 25yr24hr A BASE 10.18 0.000 0.000 0 0.054 0.000 0.0 0.0 25yr24hr A BASE 10.35 0.000 0.000 0 0.125 0.000 0.0 0.0 25yr24hr A BASE 10.52 0.000 0.000 0 0.219 0.000 0.0 0.0 25yr24hr A BASE 10.68 0.000 0.000 0 0.345 0.000 0.0 0.0 25yr24hr A BASE 10.85 0.000 0.000 0 0.517 0.000 0.0 0.0 25yr24hr A BASE 11.02 0.000 0.000 0 0.707 0.000 0.0 0.0 25yr24hr A BASE 11.18 0.000 0.000 0 0.917 0.000 0.0 0.0 25yr24hr A BASE 11.35 0.000 0.000 0 1.220 0.000 0.0 0.0 25yr24hr A BASE 11.52 0.000 0.000 0 1.946 0.000 0.1 0.0 25yr24hr A BASE 11.67 0.000 0.000 0 3.743 0.000 0.1 0.0 25yr24hr A BASE 11.83 0.000 0.000 0 9.186 0.000 0.2 0.0 25yr24hr A BASE 12.00 0.000 0.000 0 18.902 0.000 0.4 0.0 25yr24hr A BASE 12.17 0.000 0.000 0 27.555 0.000 0.7 0.0 25yr24hr A BASE 12.34 0.000 0.000 0 28.790 0.000 1.1 0.0 25yr24hr A BASE 12.50 0.000 0.000 0 26.175 0.000 1.5 0.0 25yr24hr A BASE 12.67 0.000 0.000 0 22.593 0.000 1.8 0.0 25yr24hr A BASE 12.83 0.000 0.000 0 19.258 0.000 2.1 0.0 25yr24hr A BASE 13.01 0.000 0.000 0 16.463 0.000 2.4 0.0 25yr24hr A BASE 13.18 0.000 0.000 0 14.473 0.000 2.6 0.0 25yr24hr A BASE 13.35 0.000 0.000 0 12.899 0.000 2.8 0.0 25yr24hr A BASE 13.52 0.000 0.000 0 11.597 0.000 2.9 0.0 25yr24hr A BASE 13.68 0.000 0.000 0 10.344 0.000 3.1 0.0 25yr24hr A BASE 13.85 0.000 0.000 0 9.049 0.000 3.2 0.0 25yr24hr A BASE 14.02 0.000 0.000 0 7.943 0.000 3.3 0.0 25yr24hr A BASE 14.18 0.000 0.000 0 7.018 0.000 3.4 0.0 25yr24hr A BASE 14.35 0.000 0.000 0 6.177 0.000 3.5 0.0 25yr24hr A BASE 14.52 0.000 0.000 0 5.525 0.000 3.6 0.0 25yr24hr A BASE 14.68 0.000 0.000 0 5.086 0.000 3.7 0.0 25yr24hr A BASE 14.85 0.000 0.000 0 4.707 0.000 3.8 0.0 25yr24hr A BASE 15.02 0.000 0.000 0 4.442 0.000 3.8 0.0 25yr24hr A BASE 15.18 0.000 0.000 0 4.248 0.000 3.9 0.0 25yr24hr A BASE 15.35 0.000 0.000 0 4.076 0.000 3.9 0.0 25yr24hr A BASE 15.52 0.000 0.000 0 3.943 0.000 4.0 0.0 25yr24hr A BASE 15.68 0.000 0.000 0 3.810 0.000 4.0 0.0 25yr24hr A BASE 15.85 0.000 0.000 0 3.642 0.000 4.1 0.0 25yr24hr A BASE 16.02 0.000 0.000 0 3.507 0.000 4.1 0.0 25yr24hr A BASE 16.18 0.000 0.000 0 3.393 0.000 4.2 0.0 25yr24hr A BASE 16.35 0.000 0.000 0 3.276 0.000 4.2 0.0 25yr24hr A BASE 16.52 0.000 0.000 0 3.183 0.000 4.3 0.0 25yr24hr A BASE 16.68 0.000 0.000 0 3.098 0.000 4.3 0.0 25yr24hr A BASE 16.85 0.000 0.000 0 3.002 0.000 4.4 0.0 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 1 of 4

Simulation Node Group Time Stage Warning Surface Total Total Total Total Stage Area Inflow Outflow Vol In Vol Out hrs ft ft ft2 cfs cfs af af 25yr24hr A BASE 17.02 0.000 0.000 0 2.924 0.000 4.4 0.0 25yr24hr A BASE 17.18 0.000 0.000 0 2.871 0.000 4.4 0.0 25yr24hr A BASE 17.35 0.000 0.000 0 2.831 0.000 4.5 0.0 25yr24hr A BASE 17.52 0.000 0.000 0 2.799 0.000 4.5 0.0 25yr24hr A BASE 17.68 0.000 0.000 0 2.734 0.000 4.6 0.0 25yr24hr A BASE 17.85 0.000 0.000 0 2.615 0.000 4.6 0.0 25yr24hr A BASE 18.02 0.000 0.000 0 2.519 0.000 4.6 0.0 25yr24hr A BASE 18.18 0.000 0.000 0 2.475 0.000 4.7 0.0 25yr24hr A BASE 18.35 0.000 0.000 0 2.479 0.000 4.7 0.0 25yr24hr A BASE 18.52 0.000 0.000 0 2.485 0.000 4.7 0.0 25yr24hr A BASE 18.68 0.000 0.000 0 2.445 0.000 4.8 0.0 25yr24hr A BASE 18.85 0.000 0.000 0 2.343 0.000 4.8 0.0 25yr24hr A BASE 19.02 0.000 0.000 0 2.257 0.000 4.8 0.0 25yr24hr A BASE 19.18 0.000 0.000 0 2.220 0.000 4.9 0.0 25yr24hr A BASE 19.35 0.000 0.000 0 2.230 0.000 4.9 0.0 25yr24hr A BASE 19.52 0.000 0.000 0 2.243 0.000 4.9 0.0 25yr24hr A BASE 19.68 0.000 0.000 0 2.230 0.000 5.0 0.0 25yr24hr A BASE 19.85 0.000 0.000 0 2.185 0.000 5.0 0.0 25yr24hr A BASE 20.02 0.000 0.000 0 2.141 0.000 5.0 0.0 25yr24hr A BASE 20.18 0.000 0.000 0 2.090 0.000 5.0 0.0 25yr24hr A BASE 20.35 0.000 0.000 0 2.016 0.000 5.1 0.0 25yr24hr A BASE 20.52 0.000 0.000 0 1.957 0.000 5.1 0.0 25yr24hr A BASE 20.68 0.000 0.000 0 1.917 0.000 5.1 0.0 25yr24hr A BASE 20.85 0.000 0.000 0 1.887 0.000 5.2 0.0 25yr24hr A BASE 21.02 0.000 0.000 0 1.865 0.000 5.2 0.0 25yr24hr A BASE 21.18 0.000 0.000 0 1.850 0.000 5.2 0.0 25yr24hr A BASE 21.35 0.000 0.000 0 1.837 0.000 5.2 0.0 25yr24hr A BASE 21.52 0.000 0.000 0 1.827 0.000 5.3 0.0 25yr24hr A BASE 21.68 0.000 0.000 0 1.819 0.000 5.3 0.0 25yr24hr A BASE 21.85 0.000 0.000 0 1.813 0.000 5.3 0.0 25yr24hr A BASE 22.02 0.000 0.000 0 1.810 0.000 5.3 0.0 25yr24hr A BASE 22.18 0.000 0.000 0 1.810 0.000 5.4 0.0 25yr24hr A BASE 22.35 0.000 0.000 0 1.810 0.000 5.4 0.0 25yr24hr A BASE 22.52 0.000 0.000 0 1.809 0.000 5.4 0.0 25yr24hr A BASE 22.68 0.000 0.000 0 1.786 0.000 5.4 0.0 25yr24hr A BASE 22.85 0.000 0.000 0 1.734 0.000 5.5 0.0 25yr24hr A BASE 23.02 0.000 0.000 0 1.690 0.000 5.5 0.0 25yr24hr A BASE 23.18 0.000 0.000 0 1.659 0.000 5.5 0.0 25yr24hr A BASE 23.35 0.000 0.000 0 1.636 0.000 5.5 0.0 25yr24hr A BASE 23.52 0.000 0.000 0 1.616 0.000 5.5 0.0 25yr24hr A BASE 23.68 0.000 0.000 0 1.580 0.000 5.6 0.0 25yr24hr A BASE 23.85 0.000 0.000 0 1.515 0.000 5.6 0.0 25yr24hr A BASE 24.02 0.000 0.000 0 1.442 0.000 5.6 0.0 25yr24hr A BASE 24.18 0.000 0.000 0 1.256 0.000 5.6 0.0 25yr24hr A BASE 24.35 0.000 0.000 0 0.944 0.000 5.6 0.0 25yr24hr A BASE 24.52 0.000 0.000 0 0.697 0.000 5.7 0.0 25yr24hr A BASE 24.68 0.000 0.000 0 0.526 0.000 5.7 0.0 25yr24hr A BASE 24.85 0.000 0.000 0 0.398 0.000 5.7 0.0 25yr24hr A BASE 25.02 0.000 0.000 0 0.301 0.000 5.7 0.0 25yr24hr A BASE 25.18 0.000 0.000 0 0.229 0.000 5.7 0.0 25yr24hr A BASE 25.35 0.000 0.000 0 0.168 0.000 5.7 0.0 25yr24hr A BASE 25.52 0.000 0.000 0 0.118 0.000 5.7 0.0 25yr24hr A BASE 25.68 0.000 0.000 0 0.078 0.000 5.7 0.0 25yr24hr A BASE 25.85 0.000 0.000 0 0.048 0.000 5.7 0.0 25yr24hr A BASE 26.02 0.000 0.000 0 0.027 0.000 5.7 0.0 25yr24hr A BASE 26.18 0.000 0.000 0 0.014 0.000 5.7 0.0 25yr24hr A BASE 26.35 0.000 0.000 0 0.005 0.000 5.7 0.0 25yr24hr A BASE 26.52 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 26.68 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 26.85 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 27.02 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 27.18 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 27.35 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 27.52 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 27.68 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 27.85 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 28.02 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 28.18 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 28.35 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 28.52 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 28.68 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 28.85 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 29.02 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 29.18 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 29.35 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 29.52 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 29.68 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 29.85 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr A BASE 30.01 0.000 0.000 0 0.000 0.000 5.7 0.0 25yr24hr OFFSITE BASE 0.00 151.500 151.500 0 0.163 0.000 0.0 0.0 25yr24hr OFFSITE BASE 0.18 151.500 151.500 0 0.163 0.000 0.0 0.0 25yr24hr OFFSITE BASE 0.34 151.500 151.500 0 0.162 0.000 0.0 0.0 25yr24hr OFFSITE BASE 0.50 151.500 151.500 0 0.162 0.000 0.0 0.0 25yr24hr OFFSITE BASE 0.68 151.500 151.500 0 0.162 0.000 0.0 0.0 25yr24hr OFFSITE BASE 0.85 151.500 151.500 0 0.162 0.000 0.0 0.0 25yr24hr OFFSITE BASE 1.02 151.500 151.500 0 0.162 0.000 0.0 0.0 25yr24hr OFFSITE BASE 1.18 151.500 151.500 0 0.162 0.000 0.0 0.0 25yr24hr OFFSITE BASE 1.35 151.500 151.500 0 0.162 0.000 0.0 0.0 25yr24hr OFFSITE BASE 1.52 151.500 151.500 0 0.161 0.000 0.0 0.0 25yr24hr OFFSITE BASE 1.68 151.500 151.500 0 0.161 0.000 0.0 0.0 25yr24hr OFFSITE BASE 1.85 151.500 151.500 0 0.161 0.000 0.0 0.0 25yr24hr OFFSITE BASE 2.02 151.500 151.500 0 0.161 0.000 0.0 0.0 25yr24hr OFFSITE BASE 2.18 151.500 151.500 0 0.161 0.000 0.0 0.0 25yr24hr OFFSITE BASE 2.35 151.500 151.500 0 0.161 0.000 0.0 0.0 25yr24hr OFFSITE BASE 2.52 151.500 151.500 0 0.160 0.000 0.0 0.0 25yr24hr OFFSITE BASE 2.68 151.500 151.500 0 0.160 0.000 0.0 0.0 25yr24hr OFFSITE BASE 2.85 151.500 151.500 0 0.160 0.000 0.0 0.0 25yr24hr OFFSITE BASE 3.02 151.500 151.500 0 0.160 0.000 0.0 0.0 25yr24hr OFFSITE BASE 3.18 151.500 151.500 0 0.160 0.000 0.0 0.0 25yr24hr OFFSITE BASE 3.35 151.500 151.500 0 0.160 0.000 0.0 0.0 25yr24hr OFFSITE BASE 3.52 151.500 151.500 0 0.160 0.000 0.0 0.0 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 2 of 4

Simulation Node Group Time Stage Warning Surface Total Total Total Total Stage Area Inflow Outflow Vol In Vol Out hrs ft ft ft2 cfs cfs af af 25yr24hr OFFSITE BASE 3.68 151.500 151.500 0 0.159 0.000 0.0 0.0 25yr24hr OFFSITE BASE 3.85 151.500 151.500 0 0.159 0.000 0.1 0.0 25yr24hr OFFSITE BASE 4.02 151.500 151.500 0 0.159 0.000 0.1 0.0 25yr24hr OFFSITE BASE 4.18 151.500 151.500 0 0.159 0.000 0.1 0.0 25yr24hr OFFSITE BASE 4.35 151.500 151.500 0 0.159 0.000 0.1 0.0 25yr24hr OFFSITE BASE 4.52 151.500 151.500 0 0.159 0.000 0.1 0.0 25yr24hr OFFSITE BASE 4.68 151.500 151.500 0 0.159 0.000 0.1 0.0 25yr24hr OFFSITE BASE 4.85 151.500 151.500 0 0.158 0.000 0.1 0.0 25yr24hr OFFSITE BASE 5.02 151.500 151.500 0 0.158 0.000 0.1 0.0 25yr24hr OFFSITE BASE 5.18 151.500 151.500 0 0.158 0.000 0.1 0.0 25yr24hr OFFSITE BASE 5.35 151.500 151.500 0 0.158 0.000 0.1 0.0 25yr24hr OFFSITE BASE 5.52 151.500 151.500 0 0.158 0.000 0.1 0.0 25yr24hr OFFSITE BASE 5.68 151.500 151.500 0 0.158 0.000 0.1 0.0 25yr24hr OFFSITE BASE 5.85 151.500 151.500 0 0.158 0.000 0.1 0.0 25yr24hr OFFSITE BASE 6.02 151.500 151.500 0 0.157 0.000 0.1 0.0 25yr24hr OFFSITE BASE 6.18 151.500 151.500 0 0.157 0.000 0.1 0.0 25yr24hr OFFSITE BASE 6.35 151.500 151.500 0 0.157 0.000 0.1 0.0 25yr24hr OFFSITE BASE 6.52 151.500 151.500 0 0.157 0.000 0.1 0.0 25yr24hr OFFSITE BASE 6.68 151.500 151.500 0 0.157 0.000 0.1 0.0 25yr24hr OFFSITE BASE 6.85 151.500 151.500 0 0.157 0.000 0.1 0.0 25yr24hr OFFSITE BASE 7.02 151.500 151.500 0 0.157 0.000 0.1 0.0 25yr24hr OFFSITE BASE 7.18 151.500 151.500 0 0.157 0.000 0.1 0.0 25yr24hr OFFSITE BASE 7.35 151.500 151.500 0 0.157 0.000 0.1 0.0 25yr24hr OFFSITE BASE 7.52 151.500 151.500 0 0.158 0.000 0.1 0.0 25yr24hr OFFSITE BASE 7.68 151.500 151.500 0 0.158 0.000 0.1 0.0 25yr24hr OFFSITE BASE 7.85 151.500 151.500 0 0.158 0.000 0.1 0.0 25yr24hr OFFSITE BASE 8.02 151.500 151.500 0 0.159 0.000 0.1 0.0 25yr24hr OFFSITE BASE 8.18 151.500 151.500 0 0.159 0.000 0.1 0.0 25yr24hr OFFSITE BASE 8.35 151.500 151.500 0 0.160 0.000 0.1 0.0 25yr24hr OFFSITE BASE 8.52 151.500 151.500 0 0.161 0.000 0.1 0.0 25yr24hr OFFSITE BASE 8.68 151.500 151.500 0 0.161 0.000 0.1 0.0 25yr24hr OFFSITE BASE 8.85 151.500 151.500 0 0.162 0.000 0.1 0.0 25yr24hr OFFSITE BASE 9.02 151.500 151.500 0 0.163 0.000 0.1 0.0 25yr24hr OFFSITE BASE 9.18 151.500 151.500 0 0.165 0.000 0.1 0.0 25yr24hr OFFSITE BASE 9.35 151.500 151.500 0 0.166 0.000 0.1 0.0 25yr24hr OFFSITE BASE 9.52 151.500 151.500 0 0.167 0.000 0.1 0.0 25yr24hr OFFSITE BASE 9.68 151.500 151.500 0 0.169 0.000 0.1 0.0 25yr24hr OFFSITE BASE 9.85 151.500 151.500 0 0.171 0.000 0.1 0.0 25yr24hr OFFSITE BASE 10.02 151.500 151.500 0 0.172 0.000 0.1 0.0 25yr24hr OFFSITE BASE 10.18 151.500 151.500 0 0.175 0.000 0.1 0.0 25yr24hr OFFSITE BASE 10.35 151.500 151.500 0 0.177 0.000 0.1 0.0 25yr24hr OFFSITE BASE 10.52 151.500 151.500 0 0.180 0.000 0.1 0.0 25yr24hr OFFSITE BASE 10.68 151.500 151.500 0 0.183 0.000 0.1 0.0 25yr24hr OFFSITE BASE 10.85 151.500 151.500 0 0.186 0.000 0.1 0.0 25yr24hr OFFSITE BASE 11.02 151.500 151.500 0 0.190 0.000 0.1 0.0 25yr24hr OFFSITE BASE 11.18 151.500 151.500 0 0.194 0.000 0.2 0.0 25yr24hr OFFSITE BASE 11.35 151.500 151.500 0 0.198 0.000 0.2 0.0 25yr24hr OFFSITE BASE 11.52 151.500 151.500 0 0.204 0.000 0.2 0.0 25yr24hr OFFSITE BASE 11.67 151.500 151.500 0 0.216 0.000 0.2 0.0 25yr24hr OFFSITE BASE 11.83 151.500 151.500 0 0.239 0.000 0.2 0.0 25yr24hr OFFSITE BASE 12.00 151.500 151.500 0 0.273 0.000 0.2 0.0 25yr24hr OFFSITE BASE 12.17 151.500 151.500 0 0.307 0.000 0.2 0.0 25yr24hr OFFSITE BASE 12.34 151.500 151.500 0 0.773 0.000 0.2 0.0 25yr24hr OFFSITE BASE 12.50 151.500 151.500 0 2.786 0.000 0.2 0.0 25yr24hr OFFSITE BASE 12.67 151.500 151.500 0 4.676 0.000 0.3 0.0 25yr24hr OFFSITE BASE 12.83 151.500 151.500 0 5.959 0.000 0.3 0.0 25yr24hr OFFSITE BASE 13.01 151.500 151.500 0 6.792 0.000 0.4 0.0 25yr24hr OFFSITE BASE 13.18 151.500 151.500 0 7.252 0.000 0.5 0.0 25yr24hr OFFSITE BASE 13.35 151.500 151.500 0 7.501 0.000 0.6 0.0 25yr24hr OFFSITE BASE 13.52 151.500 151.500 0 7.658 0.000 0.7 0.0 25yr24hr OFFSITE BASE 13.68 151.500 151.500 0 7.731 0.000 0.8 0.0 25yr24hr OFFSITE BASE 13.85 151.500 151.500 0 7.727 0.000 0.9 0.0 25yr24hr OFFSITE BASE 14.02 151.500 151.500 0 7.685 0.000 1.0 0.0 25yr24hr OFFSITE BASE 14.18 151.500 151.500 0 7.608 0.000 1.1 0.0 25yr24hr OFFSITE BASE 14.35 151.500 151.500 0 7.500 0.000 1.3 0.0 25yr24hr OFFSITE BASE 14.52 151.500 151.500 0 7.381 0.000 1.4 0.0 25yr24hr OFFSITE BASE 14.68 151.500 151.500 0 7.244 0.000 1.5 0.0 25yr24hr OFFSITE BASE 14.85 151.500 151.500 0 7.087 0.000 1.6 0.0 25yr24hr OFFSITE BASE 15.02 151.500 151.500 0 6.927 0.000 1.7 0.0 25yr24hr OFFSITE BASE 15.18 151.500 151.500 0 6.767 0.000 1.7 0.0 25yr24hr OFFSITE BASE 15.35 151.500 151.500 0 6.609 0.000 1.8 0.0 25yr24hr OFFSITE BASE 15.52 151.500 151.500 0 6.459 0.000 1.9 0.0 25yr24hr OFFSITE BASE 15.68 151.500 151.500 0 6.307 0.000 2.0 0.0 25yr24hr OFFSITE BASE 15.85 151.500 151.500 0 6.149 0.000 2.1 0.0 25yr24hr OFFSITE BASE 16.02 151.500 151.500 0 5.995 0.000 2.2 0.0 25yr24hr OFFSITE BASE 16.18 151.500 151.500 0 5.844 0.000 2.3 0.0 25yr24hr OFFSITE BASE 16.35 151.500 151.500 0 5.695 0.000 2.3 0.0 25yr24hr OFFSITE BASE 16.52 151.500 151.500 0 5.553 0.000 2.4 0.0 25yr24hr OFFSITE BASE 16.68 151.500 151.500 0 5.415 0.000 2.5 0.0 25yr24hr OFFSITE BASE 16.85 151.500 151.500 0 5.280 0.000 2.6 0.0 25yr24hr OFFSITE BASE 17.02 151.500 151.500 0 5.151 0.000 2.6 0.0 25yr24hr OFFSITE BASE 17.18 151.500 151.500 0 5.030 0.000 2.7 0.0 25yr24hr OFFSITE BASE 17.35 151.500 151.500 0 4.919 0.000 2.8 0.0 25yr24hr OFFSITE BASE 17.52 151.500 151.500 0 4.816 0.000 2.8 0.0 25yr24hr OFFSITE BASE 17.68 151.500 151.500 0 4.711 0.000 2.9 0.0 25yr24hr OFFSITE BASE 17.85 151.500 151.500 0 4.598 0.000 3.0 0.0 25yr24hr OFFSITE BASE 18.02 151.500 151.500 0 4.485 0.000 3.0 0.0 25yr24hr OFFSITE BASE 18.18 151.500 151.500 0 4.382 0.000 3.1 0.0 25yr24hr OFFSITE BASE 18.35 151.500 151.500 0 4.293 0.000 3.2 0.0 25yr24hr OFFSITE BASE 18.52 151.500 151.500 0 4.214 0.000 3.2 0.0 25yr24hr OFFSITE BASE 18.68 151.500 151.500 0 4.133 0.000 3.3 0.0 25yr24hr OFFSITE BASE 18.85 151.500 151.500 0 4.044 0.000 3.3 0.0 25yr24hr OFFSITE BASE 19.02 151.500 151.500 0 3.954 0.000 3.4 0.0 25yr24hr OFFSITE BASE 19.18 151.500 151.500 0 3.871 0.000 3.4 0.0 25yr24hr OFFSITE BASE 19.35 151.500 151.500 0 3.800 0.000 3.5 0.0 25yr24hr OFFSITE BASE 19.52 151.500 151.500 0 3.738 0.000 3.5 0.0 25yr24hr OFFSITE BASE 19.68 151.500 151.500 0 3.677 0.000 3.6 0.0 25yr24hr OFFSITE BASE 19.85 151.500 151.500 0 3.615 0.000 3.6 0.0 25yr24hr OFFSITE BASE 20.02 151.500 151.500 0 3.553 0.000 3.7 0.0 25yr24hr OFFSITE BASE 20.18 151.500 151.500 0 3.488 0.000 3.7 0.0 25yr24hr OFFSITE BASE 20.35 151.500 151.500 0 3.420 0.000 3.8 0.0 25yr24hr OFFSITE BASE 20.52 151.500 151.500 0 3.352 0.000 3.8 0.0 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 3 of 4

Simulation Node Group Time Stage Warning Surface Total Total Total Total Stage Area Inflow Outflow Vol In Vol Out hrs ft ft ft2 cfs cfs af af 25yr24hr OFFSITE BASE 20.68 151.500 151.500 0 3.287 0.000 3.9 0.0 25yr24hr OFFSITE BASE 20.85 151.500 151.500 0 3.225 0.000 3.9 0.0 25yr24hr OFFSITE BASE 21.02 151.500 151.500 0 3.167 0.000 4.0 0.0 25yr24hr OFFSITE BASE 21.18 151.500 151.500 0 3.113 0.000 4.0 0.0 25yr24hr OFFSITE BASE 21.35 151.500 151.500 0 3.063 0.000 4.1 0.0 25yr24hr OFFSITE BASE 21.52 151.500 151.500 0 3.016 0.000 4.1 0.0 25yr24hr OFFSITE BASE 21.68 151.500 151.500 0 2.972 0.000 4.1 0.0 25yr24hr OFFSITE BASE 21.85 151.500 151.500 0 2.932 0.000 4.2 0.0 25yr24hr OFFSITE BASE 22.02 151.500 151.500 0 2.894 0.000 4.2 0.0 25yr24hr OFFSITE BASE 22.18 151.500 151.500 0 2.858 0.000 4.3 0.0 25yr24hr OFFSITE BASE 22.35 151.500 151.500 0 2.825 0.000 4.3 0.0 25yr24hr OFFSITE BASE 22.52 151.500 151.500 0 2.794 0.000 4.3 0.0 25yr24hr OFFSITE BASE 22.68 151.500 151.500 0 2.761 0.000 4.4 0.0 25yr24hr OFFSITE BASE 22.85 151.500 151.500 0 2.723 0.000 4.4 0.0 25yr24hr OFFSITE BASE 23.02 151.500 151.500 0 2.683 0.000 4.5 0.0 25yr24hr OFFSITE BASE 23.18 151.500 151.500 0 2.644 0.000 4.5 0.0 25yr24hr OFFSITE BASE 23.35 151.500 151.500 0 2.607 0.000 4.5 0.0 25yr24hr OFFSITE BASE 23.52 151.500 151.500 0 2.571 0.000 4.6 0.0 25yr24hr OFFSITE BASE 23.68 151.500 151.500 0 2.533 0.000 4.6 0.0 25yr24hr OFFSITE BASE 23.85 151.500 151.500 0 2.491 0.000 4.6 0.0 25yr24hr OFFSITE BASE 24.02 151.500 151.500 0 2.448 0.000 4.7 0.0 25yr24hr OFFSITE BASE 24.18 151.500 151.500 0 2.383 0.000 4.7 0.0 25yr24hr OFFSITE BASE 24.35 151.500 151.500 0 2.291 0.000 4.7 0.0 25yr24hr OFFSITE BASE 24.52 151.500 151.500 0 2.187 0.000 4.8 0.0 25yr24hr OFFSITE BASE 24.68 151.500 151.500 0 2.081 0.000 4.8 0.0 25yr24hr OFFSITE BASE 24.85 151.500 151.500 0 1.978 0.000 4.8 0.0 25yr24hr OFFSITE BASE 25.02 151.500 151.500 0 1.881 0.000 4.8 0.0 25yr24hr OFFSITE BASE 25.18 151.500 151.500 0 1.790 0.000 4.9 0.0 25yr24hr OFFSITE BASE 25.35 151.500 151.500 0 1.706 0.000 4.9 0.0 25yr24hr OFFSITE BASE 25.52 151.500 151.500 0 1.627 0.000 4.9 0.0 25yr24hr OFFSITE BASE 25.68 151.500 151.500 0 1.554 0.000 4.9 0.0 25yr24hr OFFSITE BASE 25.85 151.500 151.500 0 1.485 0.000 5.0 0.0 25yr24hr OFFSITE BASE 26.02 151.500 151.500 0 1.421 0.000 5.0 0.0 25yr24hr OFFSITE BASE 26.18 151.500 151.500 0 1.361 0.000 5.0 0.0 25yr24hr OFFSITE BASE 26.35 151.500 151.500 0 1.304 0.000 5.0 0.0 25yr24hr OFFSITE BASE 26.52 151.500 151.500 0 1.251 0.000 5.0 0.0 25yr24hr OFFSITE BASE 26.68 151.500 151.500 0 1.202 0.000 5.1 0.0 25yr24hr OFFSITE BASE 26.85 151.500 151.500 0 1.155 0.000 5.1 0.0 25yr24hr OFFSITE BASE 27.02 151.500 151.500 0 1.111 0.000 5.1 0.0 25yr24hr OFFSITE BASE 27.18 151.500 151.500 0 1.069 0.000 5.1 0.0 25yr24hr OFFSITE BASE 27.35 151.500 151.500 0 1.030 0.000 5.1 0.0 25yr24hr OFFSITE BASE 27.52 151.500 151.500 0 0.993 0.000 5.1 0.0 25yr24hr OFFSITE BASE 27.68 151.500 151.500 0 0.958 0.000 5.1 0.0 25yr24hr OFFSITE BASE 27.85 151.500 151.500 0 0.925 0.000 5.2 0.0 25yr24hr OFFSITE BASE 28.02 151.500 151.500 0 0.893 0.000 5.2 0.0 25yr24hr OFFSITE BASE 28.18 151.500 151.500 0 0.864 0.000 5.2 0.0 25yr24hr OFFSITE BASE 28.35 151.500 151.500 0 0.835 0.000 5.2 0.0 25yr24hr OFFSITE BASE 28.52 151.500 151.500 0 0.809 0.000 5.2 0.0 25yr24hr OFFSITE BASE 28.68 151.500 151.500 0 0.783 0.000 5.2 0.0 25yr24hr OFFSITE BASE 28.85 151.500 151.500 0 0.759 0.000 5.2 0.0 25yr24hr OFFSITE BASE 29.02 151.500 151.500 0 0.736 0.000 5.2 0.0 25yr24hr OFFSITE BASE 29.18 151.500 151.500 0 0.714 0.000 5.2 0.0 25yr24hr OFFSITE BASE 29.35 151.500 151.500 0 0.693 0.000 5.3 0.0 25yr24hr OFFSITE BASE 29.52 151.500 151.500 0 0.674 0.000 5.3 0.0 25yr24hr OFFSITE BASE 29.68 151.500 151.500 0 0.655 0.000 5.3 0.0 25yr24hr OFFSITE BASE 29.85 151.500 151.500 0 0.637 0.000 5.3 0.0 25yr24hr OFFSITE BASE 30.01 151.500 151.500 0 0.621 0.000 5.3 0.0 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 4 of 4

========================================================================================== ==== Basins ============================================================================== ========================================================================================== Name: 100 Node: 100 Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 10.00 Area(ac): 26.234 Time Shift(hrs): 0.00 Curve Number: 76.00 Max Allowable Q(cfs): 999999.000 DCIA(%): 0.00 ---------------------------------------------------------------------------------------------------- Name: A Node: A Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 26.00 Area(ac): 26.234 Time Shift(hrs): 0.00 Curve Number: 60.00 Max Allowable Q(cfs): 999999.000 DCIA(%): 0.00 ========================================================================================== ==== Nodes =============================================================================== ========================================================================================== Name: 100 Base Flow(cfs): 0.000 Init Stage(ft): 152.480 Group: BASE Warn Stage(ft): 154.000 Type: Stage/Area Stage(ft) Area(ac) --------------- --------------- 152.000 3.4690 154.000 3.9420 ------------------------------------------------------------------------------------------ Name: A Base Flow(cfs): 0.000 Init Stage(ft): 0.000 Group: BASE Warn Stage(ft): 0.000 Type: Time/Stage Time(hrs) Stage(ft) --------------- --------------- 0.00 0.000 60.00 0.000 ------------------------------------------------------------------------------------------ Name: OFFSITE Base Flow(cfs): 0.000 Init Stage(ft): 151.500 Group: BASE Warn Stage(ft): 151.500 Type: Time/Stage Time(hrs) Stage(ft) --------------- --------------- 0.00 151.500 60.00 151.500 ========================================================================================== ==== Weirs =============================================================================== ========================================================================================== Name: O-100 From Node: 100 Group: BASE To Node: OFFSITE Flow: Both Count: 1 Type: Vertical: Mavis Geometry: Circular Span(in): 3.25 Rise(in): 3.25 Invert(ft): 152.000 Control Elevation(ft): 152.000 Bottom Clip(in): 0.000 Top Clip(in): 0.000 Weir Discharge Coef: 3.200 Orifice Discharge Coef: 0.600 TABLE ---------------------------------------------------------------------------------------------------- Name: W-100 From Node: 100 Group: BASE To Node: OFFSITE Flow: Both Count: 1 Type: Vertical: Mavis Geometry: Trapezoidal Bottom Width(ft): 6.00 Left Side Slope(h/v): 4.00 Right Side Slope(h/v): 4.00 Invert(ft): 153.500 Control Elevation(ft): 153.500 Struct Opening Dim(ft): 9999.00 Bottom Clip(ft): 0.000 Top Clip(ft): 0.000 TABLE Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 1 of 2

Weir Discharge Coef: 3.200 Orifice Discharge Coef: 0.600 ========================================================================================== ==== Hydrology Simulations =============================================================== ========================================================================================== Name: 100yr24hr Filename: X:\Engineering\PEI Standards\ICPR\100yr24hr.R32 Override Defaults: Yes Storm Duration(hrs): 24.00 Rainfall File: Flmod Rainfall Amount(in): 10.00 Time(hrs) Print Inc(min) --------------- --------------- 30.000 10.00 ---------------------------------------------------------------------------------------------------- Name: 25yr24hr Filename: X:\Engineering\PEI Standards\ICPR\25yr24hr.R32 Override Defaults: Yes Storm Duration(hrs): 24.00 Rainfall File: Flmod Rainfall Amount(in): 7.00 Time(hrs) Print Inc(min) --------------- --------------- 30.000 10.00 ========================================================================================== ==== Routing Simulations ================================================================= ========================================================================================== Name: 100yr24hr Hydrology Sim: 100yr24hr Filename: X:\Engineering\PEI Standards\ICPR\100yr24hr.I32 Execute: Yes Restart: No Patch: No Alternative: No Max Delta Z(ft): 1.00 Delta Z Factor: 0.00500 Time Step Optimizer: 10.000 Start Time(hrs): 0.000 End Time(hrs): 30.00 Min Calc Time(sec): 0.5000 Max Calc Time(sec): 60.0000 Boundary Stages: Boundary Flows: Time(hrs) Print Inc(min) --------------- --------------- 30.000 10.000 Group Run --------------- ----- BASE Yes ---------------------------------------------------------------------------------------------------- Name: 25yr24hr Hydrology Sim: 25yr24hr Filename: X:\Engineering\PEI Standards\ICPR\25yr24hr.I32 Execute: Yes Restart: No Patch: No Alternative: No Max Delta Z(ft): 1.00 Delta Z Factor: 0.00500 Time Step Optimizer: 10.000 Start Time(hrs): 0.000 End Time(hrs): 30.00 Min Calc Time(sec): 0.5000 Max Calc Time(sec): 60.0000 Boundary Stages: Boundary Flows: Time(hrs) Print Inc(min) --------------- --------------- 30.000 10.000 Group Run --------------- ----- BASE Yes Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 2 of 2

CHAPTER 6 Storm Sewer Design

Curve Number Calculation Creeks Crossing, PEI Job #1422 A. Basin: S-100 B. Total Area (ac): 0.043 C. Curve Number: Cover Type Condition Soil Group CN Area Product Pervious Areas OpenSpace Good A 39 0.013 0.507 Impervious Areas Impervious Stormwater TOB A 100 0.000 0.000 Impervious Building/Misc. A 100 0.000 0.000 Impervious Pavement/Conc. A 98 0.030 2.940 Total impervious area (excluding pond TOB) = 0.030 Total contributing area (excluding pond TOB) = 0.043 % DCIA for contributing area = 69.77% Sum: 0.043 3.447 3.447 Weighted Curve Number: = 80 0.043 Notes: * All information is referenced from TR-55, Urban Hydrology for Small Watersheds, Second Edition, June 1986 1 Poor condition (cover <50% or heavily grazed) 2 Fair condition (cover 50% to 75% or not heavily grazed) 3 Good condition (cover >75% or lightly grazed) 4 Roadway cover types include right-of-way 5 Open Space cover types include lawns, parks, golf courses, etc. 6 Pasture cover types include grasslands or ranges

Curve Number Calculation Creeks Crossing, PEI Job #1422 A. Basin: S-101 B. Total Area (ac): 0.039 C. Curve Number: Cover Type Condition Soil Group CN Area Product Pervious Areas OpenSpace Good A 39 0.010 0.390 Impervious Areas Impervious Stormwater TOB A 100 0.000 0.000 Impervious Building/Misc. A 100 0.000 0.000 Impervious Pavement/Conc. A 98 0.029 2.842 Total impervious area (excluding pond TOB) = 0.029 Total contributing area (excluding pond TOB) = 0.039 % DCIA for contributing area = 74.36% Sum: 0.039 3.232 3.232 Weighted Curve Number: = 83 0.039 Notes: * All information is referenced from TR-55, Urban Hydrology for Small Watersheds, Second Edition, June 1986 1 Poor condition (cover <50% or heavily grazed) 2 Fair condition (cover 50% to 75% or not heavily grazed) 3 Good condition (cover >75% or lightly grazed) 4 Roadway cover types include right-of-way 5 Open Space cover types include lawns, parks, golf courses, etc. 6 Pasture cover types include grasslands or ranges

Curve Number Calculation Creeks Crossing, PEI Job #1422 A. Basin: S-103 B. Total Area (ac): 0.181 C. Curve Number: Cover Type Condition Soil Group CN Area Product Pervious Areas OpenSpace Good A 39 0.055 2.145 Impervious Areas Impervious Stormwater TOB A 100 0.000 0.000 Impervious Building/Misc. A 100 0.000 0.000 Impervious Pavement/Conc. A 98 0.126 12.348 Total impervious area (excluding pond TOB) = 0.126 Total contributing area (excluding pond TOB) = 0.181 % DCIA for contributing area = 69.61% Sum: 0.181 14.493 14.493 Weighted Curve Number: = 80 0.181 Notes: * All information is referenced from TR-55, Urban Hydrology for Small Watersheds, Second Edition, June 1986 1 Poor condition (cover <50% or heavily grazed) 2 Fair condition (cover 50% to 75% or not heavily grazed) 3 Good condition (cover >75% or lightly grazed) 4 Roadway cover types include right-of-way 5 Open Space cover types include lawns, parks, golf courses, etc. 6 Pasture cover types include grasslands or ranges

Curve Number Calculation Creeks Crossing, PEI Job #1422 A. Basin: S-104 B. Total Area (ac): 0.211 C. Curve Number: Cover Type Condition Soil Group CN Area Product Pervious Areas OpenSpace Good A 39 0.065 2.535 Impervious Areas Impervious Stormwater TOB A 100 0.000 0.000 Impervious Building/Misc. A 100 0.000 0.000 Impervious Pavement/Conc. A 98 0.146 14.308 Total impervious area (excluding pond TOB) = 0.146 Total contributing area (excluding pond TOB) = 0.211 % DCIA for contributing area = 69.19% Sum: 0.211 16.843 16.843 Weighted Curve Number: = 80 0.211 Notes: * All information is referenced from TR-55, Urban Hydrology for Small Watersheds, Second Edition, June 1986 1 Poor condition (cover <50% or heavily grazed) 2 Fair condition (cover 50% to 75% or not heavily grazed) 3 Good condition (cover >75% or lightly grazed) 4 Roadway cover types include right-of-way 5 Open Space cover types include lawns, parks, golf courses, etc. 6 Pasture cover types include grasslands or ranges

Curve Number Calculation Creeks Crossing, PEI Job #1422 A. Basin: S-106 B. Total Area (ac): 5.778 C. Curve Number: Cover Type Condition Soil Group CN Area Product Pervious Areas OpenSpace Good A 39 2.741 106.915 OpenSpace Good D 80 1.828 146.208 Impervious Areas Impervious Stormwater TOB A 100 0.000 0.000 Impervious Building/Misc. A 100 1.067 106.700 Impervious Pavement/Conc. A 98 0.142 13.916 Total impervious area (excluding pond TOB) = 1.209 Total contributing area (excluding pond TOB) = 5.778 % DCIA for contributing area = 20.92% Sum: 5.778 373.739 373.739 Weighted Curve Number: = 65 5.778 Notes: * All information is referenced from TR-55, Urban Hydrology for Small Watersheds, Second Edition, June 1986 1 Poor condition (cover <50% or heavily grazed) 2 Fair condition (cover 50% to 75% or not heavily grazed) 3 Good condition (cover >75% or lightly grazed) 4 Roadway cover types include right-of-way 5 Open Space cover types include lawns, parks, golf courses, etc. 6 Pasture cover types include grasslands or ranges

Curve Number Calculation Creeks Crossing, PEI Job #1422 A. Basin: S-108 B. Total Area (ac): 1.380 C. Curve Number: Cover Type Condition Soil Group CN Area Product Pervious Areas OpenSpace Good A 39 0.282 10.988 OpenSpace Good D 80 0.523 41.860 Impervious Areas Impervious Stormwater TOB A 100 0.000 0.000 Impervious Building/Misc. A 100 0.207 20.700 Impervious Pavement/Conc. A 98 0.368 36.064 Total impervious area (excluding pond TOB) = 0.575 Total contributing area (excluding pond TOB) = 1.380 % DCIA for contributing area = 41.67% Sum: 1.380 109.612 109.612 Weighted Curve Number: = 79 1.380 Notes: * All information is referenced from TR-55, Urban Hydrology for Small Watersheds, Second Edition, June 1986 1 Poor condition (cover <50% or heavily grazed) 2 Fair condition (cover 50% to 75% or not heavily grazed) 3 Good condition (cover >75% or lightly grazed) 4 Roadway cover types include right-of-way 5 Open Space cover types include lawns, parks, golf courses, etc. 6 Pasture cover types include grasslands or ranges

Curve Number Calculation Creeks Crossing, PEI Job #1422 A. Basin: S-109 B. Total Area (ac): 0.564 C. Curve Number: Cover Type Condition Soil Group CN Area Product Pervious Areas OpenSpace Good A 39 0.054 2.116 OpenSpace Good D 80 0.163 13.020 Impervious Areas Impervious Stormwater TOB A 100 0.000 0.000 Impervious Building/Misc. A 100 0.000 0.000 Impervious Pavement/Conc. A 98 0.347 34.006 Total impervious area (excluding pond TOB) = 0.347 Total contributing area (excluding pond TOB) = 0.564 % DCIA for contributing area = 61.52% Sum: 0.564 49.142 49.142 Weighted Curve Number: = 87 0.564 Notes: * All information is referenced from TR-55, Urban Hydrology for Small Watersheds, Second Edition, June 1986 1 Poor condition (cover <50% or heavily grazed) 2 Fair condition (cover 50% to 75% or not heavily grazed) 3 Good condition (cover >75% or lightly grazed) 4 Roadway cover types include right-of-way 5 Open Space cover types include lawns, parks, golf courses, etc. 6 Pasture cover types include grasslands or ranges

Curve Number Calculation Creeks Crossing, PEI Job #1422 A. Basin: S-110 B. Total Area (ac): 1.538 C. Curve Number: Cover Type Condition Soil Group CN Area Product Pervious Areas OpenSpace Good A 39 0.523 20.381 OpenSpace Good D 80 0.348 27.872 Impervious Areas Impervious Stormwater TOB A 100 0.000 0.000 Impervious Building/Misc. A 100 0.172 17.200 Impervious Pavement/Conc. A 98 0.495 48.510 Total impervious area (excluding pond TOB) = 0.667 Total contributing area (excluding pond TOB) = 1.538 % DCIA for contributing area = 43.37% Sum: 1.538 113.963 113.963 Weighted Curve Number: = 74 1.538 Notes: * All information is referenced from TR-55, Urban Hydrology for Small Watersheds, Second Edition, June 1986 1 Poor condition (cover <50% or heavily grazed) 2 Fair condition (cover 50% to 75% or not heavily grazed) 3 Good condition (cover >75% or lightly grazed) 4 Roadway cover types include right-of-way 5 Open Space cover types include lawns, parks, golf courses, etc. 6 Pasture cover types include grasslands or ranges

Curve Number Calculation Creeks Crossing, PEI Job #1422 A. Basin: 200 B. Total Area (ac): 7.022 C. Curve Number: Cover Type Condition Soil Group CN Area Product Pervious Areas OpenSpace Good A 39 1.820 70.980 OpenSpace Good D 80 2.730 218.400 Impervious Areas Impervious Stormwater TOB A 100 1.145 114.500 Impervious Building/Misc. A 100 1.171 117.100 Impervious Pavement/Conc. A 98 0.156 15.288 Total impervious area (excluding pond TOB) = 1.327 Total contributing area (excluding pond TOB) = 5.877 % DCIA for contributing area = 22.58% Sum: 7.022 536.268 536.268 Weighted Curve Number: = 76 7.022 Notes: * All information is referenced from TR-55, Urban Hydrology for Small Watersheds, Second Edition, June 1986 1 Poor condition (cover <50% or heavily grazed) 2 Fair condition (cover 50% to 75% or not heavily grazed) 3 Good condition (cover >75% or lightly grazed) 4 Roadway cover types include right-of-way 5 Open Space cover types include lawns, parks, golf courses, etc. 6 Pasture cover types include grasslands or ranges

Nodes A Stage/Area V Stage/Volume T Time/Stage M Manhole Basins O Overland Flow U SCS Unit CN S SBUH CN Y SCS Unit GA Z SBUH GA P: P-104 A: S-100 U: S-100 A: S-101 A: S-110 U: S-110 A: S-106 U: S-106 P: P-114 Links P Pipe W Weir C Channel D Drop Structure B Bridge R Rating Curve H Breach E Percolation F Filter X Exfil Trench P: P-105 P:P-105 (1) U: S-101 A: S-102 P: P-112 A: S-108 U: S-108 A: S-107 P: P-115 A: S-103 P: P-109 U: S-103 P: P-113 A: S-104 U: S-104 A: S-109 P: P-110 U: S-109 A:200 U:200 P: P-107 W: W-200 T: S-111 T:100 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc.

Max Warning Max Delta Max Surf Max Max Name Simulation Stage Stage Stage Area Inflow Outflow ft ft ft ft2 cfs cfs 200 25yr24hr 158.193 158.250 0.0024 49718 21.537 7.746 S-100 25yr24hr 159.627 161.940 0.0002 123 0.136 0.130 S-101 25yr24hr 159.612 161.940-0.0002 169 0.258 0.256 S-102 25yr24hr 159.429 163.710 0.0003 269 0.256 0.251 S-103 25yr24hr 159.193 161.240 0.0007 233 0.793 0.789 S-104 25yr24hr 159.162 161.240 0.0007 256 1.426 1.420 S-106 25yr24hr 158.301 159.460 0.0049 144 11.732 11.620 S-107 25yr24hr 157.679 160.300 0.0027 277 11.620 11.588 S-108 25yr24hr 157.135 157.520 0.0210 243 19.872 19.841 S-109 25yr24hr 156.773 157.660 0.0310 128 21.833 21.830 S-110 25yr24hr 157.167 157.520 0.0309 114 4.194 4.095 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 1 of 1

========================================================================================== ==== Basins ============================================================================== ========================================================================================== Name: 200 Node: 200 Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 10.00 Area(ac): 7.022 Time Shift(hrs): 0.00 Curve Number: 76.00 Max Allowable Q(cfs): 999999.000 DCIA(%): 0.00 ---------------------------------------------------------------------------------------------------- Name: S-100 Node: S-100 Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 10.00 Area(ac): 0.043 Time Shift(hrs): 0.00 Curve Number: 80.00 Max Allowable Q(cfs): 999999.000 DCIA(%): 0.00 ---------------------------------------------------------------------------------------------------- Name: S-101 Node: S-101 Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 10.00 Area(ac): 0.039 Time Shift(hrs): 0.00 Curve Number: 83.00 Max Allowable Q(cfs): 999999.000 DCIA(%): 0.00 ---------------------------------------------------------------------------------------------------- Name: S-103 Node: S-103 Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 10.00 Area(ac): 0.181 Time Shift(hrs): 0.00 Curve Number: 80.00 Max Allowable Q(cfs): 999999.000 DCIA(%): 0.00 ---------------------------------------------------------------------------------------------------- Name: S-104 Node: S-104 Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 10.00 Area(ac): 0.211 Time Shift(hrs): 0.00 Curve Number: 80.00 Max Allowable Q(cfs): 999999.000 DCIA(%): 0.00 ---------------------------------------------------------------------------------------------------- Name: S-106 Node: S-106 Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 10.00 Area(ac): 5.778 Time Shift(hrs): 0.00 Curve Number: 65.00 Max Allowable Q(cfs): 999999.000 DCIA(%): 0.00 ---------------------------------------------------------------------------------------------------- Name: S-108 Node: S-108 Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 10.00 Area(ac): 1.380 Time Shift(hrs): 0.00 Curve Number: 79.00 Max Allowable Q(cfs): 999999.000 DCIA(%): 0.00 ---------------------------------------------------------------------------------------------------- Name: S-109 Node: S-109 Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 10.00 Area(ac): 0.564 Time Shift(hrs): 0.00 Curve Number: 87.00 Max Allowable Q(cfs): 999999.000 DCIA(%): 0.00 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 1 of 6

---------------------------------------------------------------------------------------------------- Name: S-110 Node: S-110 Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 10.00 Area(ac): 1.538 Time Shift(hrs): 0.00 Curve Number: 74.00 Max Allowable Q(cfs): 999999.000 DCIA(%): 0.00 ========================================================================================== ==== Nodes =============================================================================== ========================================================================================== Name: 100 Base Flow(cfs): 0.000 Init Stage(ft): 154.000 Group: BASE Warn Stage(ft): 154.000 Type: Time/Stage We used a tailwater condition of 154.00'. We feel this is conservative as it represents the top of Pond 100. Time(hrs) Stage(ft) --------------- --------------- 0.00 154.000 60.00 154.000 ------------------------------------------------------------------------------------------ Name: 200 Base Flow(cfs): 0.000 Init Stage(ft): 157.050 Group: BASE Warn Stage(ft): 158.250 Type: Stage/Area Stage(ft) Area(ac) --------------- --------------- 157.050 1.0160 158.250 1.1450 ------------------------------------------------------------------------------------------ Name: S-100 Base Flow(cfs): 0.000 Init Stage(ft): 159.390 Group: BASE Warn Stage(ft): 161.940 Type: Stage/Area Stage(ft) Area(ac) --------------- --------------- 159.390 0.0003 162.940 0.0003 ------------------------------------------------------------------------------------------ Name: S-101 Base Flow(cfs): 0.000 Init Stage(ft): 159.350 Group: BASE Warn Stage(ft): 161.940 Type: Stage/Area Stage(ft) Area(ac) --------------- --------------- 159.350 0.0003 162.940 0.0003 ------------------------------------------------------------------------------------------ Name: S-102 Base Flow(cfs): 0.000 Init Stage(ft): 159.170 Group: BASE Warn Stage(ft): 163.710 Type: Stage/Area Stage(ft) Area(ac) --------------- --------------- 159.170 0.0003 163.710 0.0003 ------------------------------------------------------------------------------------------ Name: S-103 Base Flow(cfs): 0.000 Init Stage(ft): 158.360 Group: BASE Warn Stage(ft): 161.240 Type: Stage/Area Stage(ft) Area(ac) --------------- --------------- 158.360 0.0003 162.240 0.0003 ------------------------------------------------------------------------------------------ Name: S-104 Base Flow(cfs): 0.000 Init Stage(ft): 157.860 Group: BASE Warn Stage(ft): 161.240 Type: Stage/Area Stage(ft) Area(ac) --------------- --------------- 157.860 0.0003 162.240 0.0003 ------------------------------------------------------------------------------------------ Name: S-106 Base Flow(cfs): 0.000 Init Stage(ft): 155.250 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 2 of 6

Group: BASE Warn Stage(ft): 159.460 Type: Stage/Area Stage(ft) Area(ac) --------------- --------------- 155.250 0.0001 159.460 0.0001 ------------------------------------------------------------------------------------------ Name: S-107 Base Flow(cfs): 0.000 Init Stage(ft): 155.820 Group: BASE Warn Stage(ft): 160.300 Type: Stage/Area Stage(ft) Area(ac) --------------- --------------- 155.820 0.0002 160.300 0.0002 ------------------------------------------------------------------------------------------ Name: S-108 Base Flow(cfs): 0.000 Init Stage(ft): 153.430 Group: BASE Warn Stage(ft): 157.520 Type: Stage/Area Stage(ft) Area(ac) --------------- --------------- 153.430 0.0003 158.520 0.0003 ------------------------------------------------------------------------------------------ Name: S-109 Base Flow(cfs): 0.000 Init Stage(ft): 153.110 Group: BASE Warn Stage(ft): 157.660 Type: Stage/Area Stage(ft) Area(ac) --------------- --------------- 153.110 0.0003 158.660 0.0003 ------------------------------------------------------------------------------------------ Name: S-110 Base Flow(cfs): 0.000 Init Stage(ft): 154.140 Group: BASE Warn Stage(ft): 157.520 Type: Stage/Area Stage(ft) Area(ac) --------------- --------------- 154.140 0.0003 158.520 0.0003 ------------------------------------------------------------------------------------------ Name: S-111 Base Flow(cfs): 0.000 Init Stage(ft): 156.000 Group: BASE Warn Stage(ft): 156.000 Type: Time/Stage The tailwater elevation of 156.00' represent the top of the discharge swale leading to Pond 100. Time(hrs) Stage(ft) --------------- --------------- 0.00 156.000 60.00 156.000 ========================================================================================== ==== Pipes =============================================================================== ========================================================================================== Name: P-104 From Node: S-100 Length(ft): 20.00 Group: BASE To Node: S-101 Count: 1 Friction Equation: Automatic UPSTREAM DOWNSTREAM Solution Algorithm: Most Restrictive Geometry: Circular Circular Flow: Both Span(in): 15.00 15.00 Entrance Loss Coef: 0.00 Rise(in): 15.00 15.00 Exit Loss Coef: 1.00 Invert(ft): 159.390 159.350 Bend Loss Coef: 0.00 Manning's N: 0.012000 0.012000 Outlet Ctrl Spec: Use dc or tw Top Clip(in): 0.000 0.000 Inlet Ctrl Spec: Use dc Bot Clip(in): 0.000 0.000 Stabilizer Option: None Upstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall ---------------------------------------------------------------------------------------------------- Name: P-105 From Node: S-101 Length(ft): 90.00 Group: BASE To Node: S-102 Count: 1 Friction Equation: Automatic UPSTREAM DOWNSTREAM Solution Algorithm: Most Restrictive Geometry: Circular Circular Flow: Both Span(in): 15.00 15.00 Entrance Loss Coef: 0.00 Rise(in): 15.00 15.00 Exit Loss Coef: 1.00 Invert(ft): 159.350 159.170 Bend Loss Coef: 0.00 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 3 of 6

Manning's N: 0.012000 0.012000 Outlet Ctrl Spec: Use dc or tw Top Clip(in): 0.000 0.000 Inlet Ctrl Spec: Use dc Bot Clip(in): 0.000 0.000 Stabilizer Option: None Upstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall ---------------------------------------------------------------------------------------------------- Name: P-105 (1) From Node: S-102 Length(ft): 223.00 Group: BASE To Node: S-103 Count: 1 Friction Equation: Automatic UPSTREAM DOWNSTREAM Solution Algorithm: Most Restrictive Geometry: Circular Circular Flow: Both Span(in): 15.00 15.00 Entrance Loss Coef: 0.00 Rise(in): 15.00 15.00 Exit Loss Coef: 1.00 Invert(ft): 159.170 158.550 Bend Loss Coef: 0.00 Manning's N: 0.012000 0.012000 Outlet Ctrl Spec: Use dc or tw Top Clip(in): 0.000 0.000 Inlet Ctrl Spec: Use dc Bot Clip(in): 0.000 0.000 Stabilizer Option: None Upstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall ---------------------------------------------------------------------------------------------------- Name: P-107 From Node: S-109 Length(ft): 193.00 Group: BASE To Node: S-111 Count: 1 Friction Equation: Automatic UPSTREAM DOWNSTREAM Solution Algorithm: Most Restrictive Geometry: Circular Circular Flow: Both Span(in): 30.00 30.00 Entrance Loss Coef: 0.00 Rise(in): 30.00 30.00 Exit Loss Coef: 1.00 Invert(ft): 153.110 152.000 Bend Loss Coef: 0.00 Manning's N: 0.012000 0.012000 Outlet Ctrl Spec: Use dc or tw Top Clip(in): 0.000 0.000 Inlet Ctrl Spec: Use dc Bot Clip(in): 0.000 0.000 Stabilizer Option: None Upstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall ---------------------------------------------------------------------------------------------------- Name: P-109 From Node: S-103 Length(ft): 20.00 Group: BASE To Node: S-104 Count: 1 Friction Equation: Automatic UPSTREAM DOWNSTREAM Solution Algorithm: Most Restrictive Geometry: Circular Circular Flow: Both Span(in): 15.00 15.00 Entrance Loss Coef: 0.00 Rise(in): 15.00 15.00 Exit Loss Coef: 1.00 Invert(ft): 158.550 158.510 Bend Loss Coef: 0.00 Manning's N: 0.012000 0.012000 Outlet Ctrl Spec: Use dc or tw Top Clip(in): 0.000 0.000 Inlet Ctrl Spec: Use dc Bot Clip(in): 0.000 0.000 Stabilizer Option: None Upstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall ---------------------------------------------------------------------------------------------------- Name: P-110 From Node: S-104 Length(ft): 213.00 Group: BASE To Node: 200 Count: 1 Friction Equation: Automatic UPSTREAM DOWNSTREAM Solution Algorithm: Most Restrictive Geometry: Circular Circular Flow: Both Span(in): 15.00 15.00 Entrance Loss Coef: 0.00 Rise(in): 15.00 15.00 Exit Loss Coef: 1.00 Invert(ft): 158.510 156.000 Bend Loss Coef: 0.00 Manning's N: 0.012000 0.012000 Outlet Ctrl Spec: Use dc or tw Top Clip(in): 0.000 0.000 Inlet Ctrl Spec: Use dc Bot Clip(in): 0.000 0.000 Stabilizer Option: None Upstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 4 of 6

---------------------------------------------------------------------------------------------------- Name: P-112 From Node: S-110 Length(ft): 20.00 Group: BASE To Node: S-108 Count: 1 Friction Equation: Automatic UPSTREAM DOWNSTREAM Solution Algorithm: Most Restrictive Geometry: Circular Circular Flow: Both Span(in): 24.00 24.00 Entrance Loss Coef: 0.00 Rise(in): 24.00 24.00 Exit Loss Coef: 1.00 Invert(ft): 154.000 153.960 Bend Loss Coef: 0.00 Manning's N: 0.012000 0.012000 Outlet Ctrl Spec: Use dc or tw Top Clip(in): 0.000 0.000 Inlet Ctrl Spec: Use dc Bot Clip(in): 0.000 0.000 Stabilizer Option: None Upstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall ---------------------------------------------------------------------------------------------------- Name: P-113 From Node: S-108 Length(ft): 54.00 Group: BASE To Node: S-109 Count: 1 Friction Equation: Automatic UPSTREAM DOWNSTREAM Solution Algorithm: Most Restrictive Geometry: Circular Circular Flow: Both Span(in): 30.00 30.00 Entrance Loss Coef: 0.00 Rise(in): 30.00 30.00 Exit Loss Coef: 1.00 Invert(ft): 153.430 153.320 Bend Loss Coef: 0.00 Manning's N: 0.012000 0.012000 Outlet Ctrl Spec: Use dc or tw Top Clip(in): 0.000 0.000 Inlet Ctrl Spec: Use dc Bot Clip(in): 0.000 0.000 Stabilizer Option: None Upstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall ---------------------------------------------------------------------------------------------------- Name: P-114 From Node: S-106 Length(ft): 184.00 Group: BASE To Node: S-107 Count: 1 Friction Equation: Automatic UPSTREAM DOWNSTREAM Solution Algorithm: Most Restrictive Geometry: Circular Circular Flow: Both Span(in): 24.00 24.00 Entrance Loss Coef: 0.00 Rise(in): 24.00 24.00 Exit Loss Coef: 1.00 Invert(ft): 156.130 155.820 Bend Loss Coef: 0.00 Manning's N: 0.012000 0.012000 Outlet Ctrl Spec: Use dc or tw Top Clip(in): 0.000 0.000 Inlet Ctrl Spec: Use dc Bot Clip(in): 0.000 0.000 Stabilizer Option: None Upstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall ---------------------------------------------------------------------------------------------------- Name: P-115 From Node: S-107 Length(ft): 144.00 Group: BASE To Node: S-108 Count: 1 Friction Equation: Automatic UPSTREAM DOWNSTREAM Solution Algorithm: Most Restrictive Geometry: Circular Circular Flow: Both Span(in): 24.00 24.00 Entrance Loss Coef: 0.00 Rise(in): 24.00 24.00 Exit Loss Coef: 1.00 Invert(ft): 155.820 153.960 Bend Loss Coef: 0.00 Manning's N: 0.012000 0.012000 Outlet Ctrl Spec: Use dc or tw Top Clip(in): 0.000 0.000 Inlet Ctrl Spec: Use dc Bot Clip(in): 0.000 0.000 Stabilizer Option: None Upstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall Downstream FHWA Inlet Edge Description: Circular Concrete: Square edge w/ headwall ========================================================================================== ==== Weirs =============================================================================== ========================================================================================== Name: W-200 From Node: 200 Group: BASE To Node: 100 Flow: Both Count: 1 Type: Vertical: Mavis Geometry: Trapezoidal Bottom Width(ft): 2.00 Left Side Slope(h/v): 4.00 Right Side Slope(h/v): 4.00 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 5 of 6

Invert(ft): 157.500 Control Elevation(ft): 157.500 Struct Opening Dim(ft): 9999.00 Bottom Clip(ft): 0.000 Top Clip(ft): 0.000 Weir Discharge Coef: 3.200 Orifice Discharge Coef: 0.600 TABLE ========================================================================================== ==== Hydrology Simulations =============================================================== ========================================================================================== Name: 100yr24hr Filename: X:\Engineering\PEI Standards\ICPR\100yr24hr.R32 Override Defaults: Yes Storm Duration(hrs): 24.00 Rainfall File: Flmod Rainfall Amount(in): 10.00 Time(hrs) Print Inc(min) --------------- --------------- 30.000 10.00 ---------------------------------------------------------------------------------------------------- Name: 25yr24hr Filename: X:\Engineering\PEI Standards\ICPR\25yr24hr.R32 Override Defaults: Yes Storm Duration(hrs): 24.00 Rainfall File: Flmod Rainfall Amount(in): 7.00 Time(hrs) Print Inc(min) --------------- --------------- 30.000 10.00 ========================================================================================== ==== Routing Simulations ================================================================= ========================================================================================== Name: 100yr24hr Hydrology Sim: 100yr24hr Filename: X:\Engineering\PEI Standards\ICPR\100yr24hr.I32 Execute: No Restart: No Patch: No Alternative: No Max Delta Z(ft): 1.00 Delta Z Factor: 0.00500 Time Step Optimizer: 10.000 Start Time(hrs): 0.000 End Time(hrs): 30.00 Min Calc Time(sec): 0.5000 Max Calc Time(sec): 60.0000 Boundary Stages: Boundary Flows: Time(hrs) Print Inc(min) --------------- --------------- 30.000 10.000 Group Run --------------- ----- BASE Yes ---------------------------------------------------------------------------------------------------- Name: 25yr24hr Hydrology Sim: 25yr24hr Filename: X:\Engineering\PEI Standards\ICPR\25yr24hr.I32 Execute: Yes Restart: No Patch: No Alternative: No Max Delta Z(ft): 1.00 Delta Z Factor: 0.00500 Time Step Optimizer: 10.000 Start Time(hrs): 0.000 End Time(hrs): 30.00 Min Calc Time(sec): 0.5000 Max Calc Time(sec): 60.0000 Boundary Stages: Boundary Flows: Time(hrs) Print Inc(min) --------------- --------------- 30.000 10.000 Group Run --------------- ----- BASE Yes Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 6 of 6

CHAPTER 7 Swale Design

< < < < < < < < < < < < < < < < < < < < < SWALE 300 SWALE 300 BASIN < < < < < < < < < < < < < < < SWALE 400 SWALE 400 BASIN AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE GREEN TEXT BLUE TEXT RED TEXT AWE AWE LEGEND AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE AWE SWALE 200 BASIN AWE < < NODE NAME BASIN NAME LINK NAME NODE LINE BASIN LINE LINK LINE 0' NORTH SCALE: 1" = 150' 75' 150' NO. DATE APPROVED DESCRIPTION DESIGNED BY: CB DRAWN BY: DH Pickett CHECKED BY: SM 150 SOUTH WOODLAWN AVENUE, BARTOW, FL 33830 PHONE: (863) 800-3046 FAX: (863) 800-1159 FLORIDA CERTIFICATE OF AUTHORIZATION (FLCA) #26247 SWALE 200 < < < < < < < < SWALE 100 BASIN SWALE 100 < < < < < < < < SOUTHERN HOLDINGS OF POLK COUNTY, LLC CLIENT: CREEKS CROSSING PROJECT: PROJECT NO. POST DEVELOPMENT 1SWALE BASIN MAP SHEET 0 N GALLOWAY RD, LAKELAND FLORIDA 33810 < < 1422 OF 1

SWALE 100

Curve Number Calculation Creeks Crossing, PEI Job #1422 A. Basin: SWALE 100 B. Total Area (ac): 1.796 C. Curve Number: Cover Type Condition Soil Group CN Area Product Pervious Areas OpenSpace Good A 39 1.348 52.572 Impervious Areas Impervious Stormwater TOB A 100 0.000 0.000 Impervious Building/Misc. A 100 0.402 40.200 Impervious Pavement/Conc. A 98 0.046 4.508 Total impervious area (excluding pond TOB) = 0.448 Total contributing area (excluding pond TOB) = 1.796 % DCIA for contributing area = 24.94% Sum: 1.796 97.280 97.280 Weighted Curve Number: = 54 1.796 Notes: * All information is referenced from TR-55, Urban Hydrology for Small Watersheds, Second Edition, June 1986 1 Poor condition (cover <50% or heavily grazed) 2 Fair condition (cover 50% to 75% or not heavily grazed) 3 Good condition (cover >75% or lightly grazed) 4 Roadway cover types include right-of-way 5 Open Space cover types include lawns, parks, golf courses, etc. 6 Pasture cover types include grasslands or ranges

Nodes A Stage/Area V Stage/Volume T Time/Stage M Manhole Basins O Overland Flow U SCS Unit CN S SBUH CN Y SCS Unit GA Z SBUH GA Links P Pipe W Weir C Channel D Drop Structure B Bridge R Rating Curve H Breach E Percolation F Filter X Exfil Trench T:Swale 100 U:Swale 100 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc.

Max Warning Max Delta Max Surf Max Max Name Simulation Stage Stage Stage Area Inflow Outflow ft ft ft ft2 cfs cfs Swale 100 25yr24hr 0.000 0.000 0.0000 0 2.121 0.000 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 1 of 1

========================================================================================== ==== Basins ============================================================================== ========================================================================================== Name: Swale 100 Node: Swale 100 Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 10.00 Area(ac): 1.796 Time Shift(hrs): 0.00 Curve Number: 54.00 Max Allowable Q(cfs): 999999.000 DCIA(%): 0.00 ========================================================================================== ==== Nodes =============================================================================== ========================================================================================== Name: Swale 100 Base Flow(cfs): 0.000 Init Stage(ft): 0.000 Group: BASE Warn Stage(ft): 0.000 Type: Time/Stage Time(hrs) Stage(ft) --------------- --------------- 0.00 0.000 60.00 0.000 ========================================================================================== ==== Hydrology Simulations =============================================================== ========================================================================================== Name: 25yr24hr Filename: X:\Engineering\PEI Standards\ICPR\25yr24hr.R32 Override Defaults: Yes Storm Duration(hrs): 24.00 Rainfall File: Flmod Rainfall Amount(in): 7.00 Time(hrs) Print Inc(min) --------------- --------------- 30.000 10.00 ========================================================================================== ==== Routing Simulations ================================================================= ========================================================================================== Name: 25yr24hr Hydrology Sim: 25yr24hr Filename: X:\Engineering\PEI Standards\ICPR\25yr24hr.I32 Execute: Yes Restart: No Patch: No Alternative: No Max Delta Z(ft): 1.00 Delta Z Factor: 0.00500 Time Step Optimizer: 10.000 Start Time(hrs): 0.000 End Time(hrs): 30.00 Min Calc Time(sec): 0.5000 Max Calc Time(sec): 60.0000 Boundary Stages: Boundary Flows: Time(hrs) Print Inc(min) --------------- --------------- 30.000 10.000 Group Run --------------- ----- BASE Yes Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 1 of 1

Creeks Crossing SWALE 100 JOB #1422 A. Contributing Offsite Basin: SWALE 100 B. Total Drainage Basin Area: 1.796 C. CN: 54 D. Peak Runoff from Hydrograph: 2.121 Pw = 2d/sin(θ) a = 0.5(d)(Wt) V = (1.486/n)(r^0.67)(S^0.5) Q = Va r = a/pw Triangular Open Channel Flow Manning's n-value n = 0.05 Side slope (H:V) s = 4 :1 Depth of flow d = 1 ft Slope of channel Sc = 0.0034 ft/ft Theta θ = 0.245 rad Top width Wt = 8 ft Cross section area a = 4.00 sf Wetted perimeter Pw = 8.25 ft Hydraulic radius r = 0.49 ft Velocity V= 1.07 ft/s Flow Rate Q = 4.28 cfs * Design swale flow rate (Q) > Peak Runoff Full Swale Design

SWALE 200

Curve Number Calculation Creeks Crossing, PEI Job #1422 A. Basin: SWALE 200 B. Total Area (ac): 0.794 C. Curve Number: Cover Type Condition Soil Group CN Area Product Pervious Areas OpenSpace Good D 80 0.705 56.400 Impervious Areas Impervious Stormwater TOB A 100 0.000 0.000 Impervious Building/Misc. A 100 0.080 8.000 Impervious Pavement/Conc. A 98 0.009 0.882 Total impervious area (excluding pond TOB) = 0.089 Total contributing area (excluding pond TOB) = 0.794 % DCIA for contributing area = 11.21% Sum: 0.794 65.282 65.282 Weighted Curve Number: = 82 0.794 Notes: * All information is referenced from TR-55, Urban Hydrology for Small Watersheds, Second Edition, June 1986 1 Poor condition (cover <50% or heavily grazed) 2 Fair condition (cover 50% to 75% or not heavily grazed) 3 Good condition (cover >75% or lightly grazed) 4 Roadway cover types include right-of-way 5 Open Space cover types include lawns, parks, golf courses, etc. 6 Pasture cover types include grasslands or ranges

Nodes A Stage/Area V Stage/Volume T Time/Stage M Manhole Basins O Overland Flow U SCS Unit CN S SBUH CN Y SCS Unit GA Z SBUH GA Links P Pipe W Weir C Channel D Drop Structure B Bridge R Rating Curve H Breach E Percolation F Filter X Exfil Trench T:Swale 200 U:Swale 200 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc.

Max Warning Max Delta Max Surf Max Max Name Simulation Stage Stage Stage Area Inflow Outflow ft ft ft ft2 cfs cfs Swale 200 25yr24hr 0.000 0.000 0.0000 0 2.628 0.000 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 1 of 1

========================================================================================== ==== Basins ============================================================================== ========================================================================================== Name: Swale 200 Node: Swale 200 Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 10.00 Area(ac): 0.794 Time Shift(hrs): 0.00 Curve Number: 82.00 Max Allowable Q(cfs): 999999.000 DCIA(%): 0.00 ========================================================================================== ==== Nodes =============================================================================== ========================================================================================== Name: Swale 200 Base Flow(cfs): 0.000 Init Stage(ft): 0.000 Group: BASE Warn Stage(ft): 0.000 Type: Time/Stage Time(hrs) Stage(ft) --------------- --------------- 0.00 0.000 60.00 0.000 ========================================================================================== ==== Hydrology Simulations =============================================================== ========================================================================================== Name: 25yr24hr Filename: X:\Engineering\PEI Standards\ICPR\25yr24hr.R32 Override Defaults: Yes Storm Duration(hrs): 24.00 Rainfall File: Flmod Rainfall Amount(in): 7.00 Time(hrs) Print Inc(min) --------------- --------------- 30.000 10.00 ========================================================================================== ==== Routing Simulations ================================================================= ========================================================================================== Name: 25yr24hr Hydrology Sim: 25yr24hr Filename: X:\Engineering\PEI Standards\ICPR\25yr24hr.I32 Execute: Yes Restart: No Patch: No Alternative: No Max Delta Z(ft): 1.00 Delta Z Factor: 0.00500 Time Step Optimizer: 10.000 Start Time(hrs): 0.000 End Time(hrs): 30.00 Min Calc Time(sec): 0.5000 Max Calc Time(sec): 60.0000 Boundary Stages: Boundary Flows: Time(hrs) Print Inc(min) --------------- --------------- 30.000 10.000 Group Run --------------- ----- BASE Yes Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 1 of 1

Creeks Crossing SWALE 200 JOB #1422 A. Contributing Offsite Basin: SWALE 200 B. Total Drainage Basin Area: 0.794 C. CN: 82 D. Peak Runoff from Hydrograph: 2.628 Pw = 2d/sin(θ) a = 0.5(d)(Wt) V = (1.486/n)(r^0.67)(S^0.5) Q = Va r = a/pw Triangular Open Channel Flow Manning's n-value n = 0.05 Side slope (H:V) s = 4 :1 Depth of flow d = 0.75 ft Slope of channel Sc = 0.026 ft/ft Theta θ = 0.245 rad Top width Wt = 6 ft Cross section area a = 2.25 sf Wetted perimeter Pw = 6.18 ft Hydraulic radius r = 0.36 ft Velocity V= 2.44 ft/s Flow Rate Q = 5.49 cfs * Design swale flow rate (Q) > Peak Runoff Full Swale Design

SWALE 300

Curve Number Calculation Creeks Crossing, PEI Job #1422 A. Basin: SWALE 300 B. Total Area (ac): 2.543 C. Curve Number: Cover Type Condition Soil Group CN Area Product Pervious Areas OpenSpace Good A 39 1.553 60.565 OpenSpace Good D 80 0.274 21.924 Impervious Areas Impervious Stormwater TOB A 100 0.000 0.000 Impervious Building/Misc. A 100 0.643 64.300 Impervious Pavement/Conc. A 98 0.073 7.154 Total impervious area (excluding pond TOB) = 0.716 Total contributing area (excluding pond TOB) = 2.543 % DCIA for contributing area = 28.16% Sum: 2.543 153.943 153.943 Weighted Curve Number: = 61 2.543 Notes: * All information is referenced from TR-55, Urban Hydrology for Small Watersheds, Second Edition, June 1986 1 Poor condition (cover <50% or heavily grazed) 2 Fair condition (cover 50% to 75% or not heavily grazed) 3 Good condition (cover >75% or lightly grazed) 4 Roadway cover types include right-of-way 5 Open Space cover types include lawns, parks, golf courses, etc. 6 Pasture cover types include grasslands or ranges

Nodes A Stage/Area V Stage/Volume T Time/Stage M Manhole Basins O Overland Flow U SCS Unit CN S SBUH CN Y SCS Unit GA Z SBUH GA Links P Pipe W Weir C Channel D Drop Structure B Bridge R Rating Curve H Breach E Percolation F Filter X Exfil Trench T:Swale 300 U:Swale 300 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc.

Max Warning Max Delta Max Surf Max Max Name Simulation Stage Stage Stage Area Inflow Outflow ft ft ft ft2 cfs cfs Swale 300 25yr24hr 0.000 0.000 0.0000 0 4.368 0.000 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 1 of 1

========================================================================================== ==== Basins ============================================================================== ========================================================================================== Name: Swale 300 Node: Swale 300 Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 10.00 Area(ac): 2.543 Time Shift(hrs): 0.00 Curve Number: 61.00 Max Allowable Q(cfs): 999999.000 DCIA(%): 0.00 ========================================================================================== ==== Nodes =============================================================================== ========================================================================================== Name: Swale 300 Base Flow(cfs): 0.000 Init Stage(ft): 0.000 Group: BASE Warn Stage(ft): 0.000 Type: Time/Stage Time(hrs) Stage(ft) --------------- --------------- 0.00 0.000 60.00 0.000 ========================================================================================== ==== Hydrology Simulations =============================================================== ========================================================================================== Name: 25yr24hr Filename: X:\Engineering\PEI Standards\ICPR\25yr24hr.R32 Override Defaults: Yes Storm Duration(hrs): 24.00 Rainfall File: Flmod Rainfall Amount(in): 7.00 Time(hrs) Print Inc(min) --------------- --------------- 30.000 10.00 ========================================================================================== ==== Routing Simulations ================================================================= ========================================================================================== Name: 25yr24hr Hydrology Sim: 25yr24hr Filename: X:\Engineering\PEI Standards\ICPR\25yr24hr.I32 Execute: Yes Restart: No Patch: No Alternative: No Max Delta Z(ft): 1.00 Delta Z Factor: 0.00500 Time Step Optimizer: 10.000 Start Time(hrs): 0.000 End Time(hrs): 30.00 Min Calc Time(sec): 0.5000 Max Calc Time(sec): 60.0000 Boundary Stages: Boundary Flows: Time(hrs) Print Inc(min) --------------- --------------- 30.000 10.000 Group Run --------------- ----- BASE Yes Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 1 of 1

Creeks Crossing SWALE 300 JOB #1422 A. Contributing Offsite Basin: SWALE 300 B. Total Drainage Basin Area: 2.543 C. CN: 61 D. Peak Runoff from Hydrograph: 4.368 Pw = 2d/sin(θ) a = 0.5(d)(Wt) V = (1.486/n)(r^0.67)(S^0.5) Q = Va r = a/pw Triangular Open Channel Flow Manning's n-value n = 0.05 Side slope (H:V) s = 4 :1 Depth of flow d = 1 ft Slope of channel Sc = 0.0037 ft/ft Theta θ = 0.245 rad Top width Wt = 8 ft Cross section area a = 4.00 sf Wetted perimeter Pw = 8.25 ft Hydraulic radius r = 0.49 ft Velocity V= 1.12 ft/s Flow Rate Q = 4.46 cfs * Design swale flow rate (Q) > Peak Runoff Full Swale Design

SWALE 400

Curve Number Calculation Creeks Crossing, PEI Job #1422 A. Basin: SWALE 400 B. Total Area (ac): 3.145 C. Curve Number: Cover Type Condition Soil Group CN Area Product Pervious Areas OpenSpace Good A 39 1.663 64.839 OpenSpace Good D 80 0.856 68.517 Impervious Areas Impervious Stormwater TOB A 100 0.000 0.000 Impervious Building/Misc. A 100 0.562 56.200 Impervious Pavement/Conc. A 98 0.064 6.272 Total impervious area (excluding pond TOB) = 0.626 Total contributing area (excluding pond TOB) = 3.145 % DCIA for contributing area = 19.90% Sum: 3.145 195.828 195.828 Weighted Curve Number: = 62 3.145 Notes: * All information is referenced from TR-55, Urban Hydrology for Small Watersheds, Second Edition, June 1986 1 Poor condition (cover <50% or heavily grazed) 2 Fair condition (cover 50% to 75% or not heavily grazed) 3 Good condition (cover >75% or lightly grazed) 4 Roadway cover types include right-of-way 5 Open Space cover types include lawns, parks, golf courses, etc. 6 Pasture cover types include grasslands or ranges

Nodes A Stage/Area V Stage/Volume T Time/Stage M Manhole Basins O Overland Flow U SCS Unit CN S SBUH CN Y SCS Unit GA Z SBUH GA Links P Pipe W Weir C Channel D Drop Structure B Bridge R Rating Curve H Breach E Percolation F Filter X Exfil Trench T:Swale 400 U:Swale 400 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc.

Max Warning Max Delta Max Surf Max Max Name Simulation Stage Stage Stage Area Inflow Outflow ft ft ft ft2 cfs cfs Swale 400 25yr24hr 0.000 0.000 0.0000 0 5.646 0.000 Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 1 of 1

========================================================================================== ==== Basins ============================================================================== ========================================================================================== Name: Swale 400 Node: Swale 400 Status: Onsite Group: BASE Type: SCS Unit Hydrograph CN Unit Hydrograph: Uh256 Peaking Factor: 256.0 Rainfall File: Storm Duration(hrs): 0.00 Rainfall Amount(in): 0.000 Time of Conc(min): 10.00 Area(ac): 3.145 Time Shift(hrs): 0.00 Curve Number: 62.00 Max Allowable Q(cfs): 999999.000 DCIA(%): 0.00 ========================================================================================== ==== Nodes =============================================================================== ========================================================================================== Name: Swale 400 Base Flow(cfs): 0.000 Init Stage(ft): 0.000 Group: BASE Warn Stage(ft): 0.000 Type: Time/Stage Time(hrs) Stage(ft) --------------- --------------- 0.00 0.000 60.00 0.000 ========================================================================================== ==== Hydrology Simulations =============================================================== ========================================================================================== Name: 25yr24hr Filename: X:\Engineering\PEI Standards\ICPR\25yr24hr.R32 Override Defaults: Yes Storm Duration(hrs): 24.00 Rainfall File: Flmod Rainfall Amount(in): 7.00 Time(hrs) Print Inc(min) --------------- --------------- 30.000 10.00 ========================================================================================== ==== Routing Simulations ================================================================= ========================================================================================== Name: 25yr24hr Hydrology Sim: 25yr24hr Filename: X:\Engineering\PEI Standards\ICPR\25yr24hr.I32 Execute: Yes Restart: No Patch: No Alternative: No Max Delta Z(ft): 1.00 Delta Z Factor: 0.00500 Time Step Optimizer: 10.000 Start Time(hrs): 0.000 End Time(hrs): 30.00 Min Calc Time(sec): 0.5000 Max Calc Time(sec): 60.0000 Boundary Stages: Boundary Flows: Time(hrs) Print Inc(min) --------------- --------------- 30.000 10.000 Group Run --------------- ----- BASE Yes Interconnected Channel and Pond Routing Model (ICPR) 2002 Streamline Technologies, Inc. Page 1 of 1

Creeks Crossing SWALE 400 JOB #1422 A. Contributing Offsite Basin: SWALE 400 B. Total Drainage Basin Area: 3.145 C. CN: 62 D. Peak Runoff from Hydrograph: 5.646 Pw = 2d/sin(θ) a = 0.5(d)(Wt) V = (1.486/n)(r^0.67)(S^0.5) Q = Va r = a/pw Triangular Open Channel Flow Manning's n-value n = 0.05 Side slope (H:V) s = 4 :1 Depth of flow d = 1 ft Slope of channel Sc = 0.0071 ft/ft Theta θ = 0.245 rad Top width Wt = 8 ft Cross section area a = 4.00 sf Wetted perimeter Pw = 8.25 ft Hydraulic radius r = 0.49 ft Velocity V= 1.55 ft/s Flow Rate Q = 6.18 cfs * Design swale flow rate (Q) > Peak Runoff Full Swale Design

APPENDIX A Geotech Report