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45 Southwest Buisiness Center
DRAINAGE REPORT F OR SOUTHWEST BUSINESS CENTER LOTS 7 & 8, BLOCK TWO EDEL WEISS BUSINESS CENTER 2.43 ACRES COLLEGE STATION, BRAZOS COUNTY, TEXAS OCTOBER, 2003 PREPARED BY L. A . BERRY, P.E. 1811 ROSE STREET BRYAN, TEXAS 77802 TELEPHONE: (2 10) 884-0065 -~\ 3-~w ~~-'\ ~.~ DRAINAGE REPORT '\ ,0() V FOR \ ~ v Lots 4 & 9, Block 2 Edelweiss Business Center S. Gr aham Road Vicinity Map (n.t.s.) JULY, 2004 Prepared By: McClure f Browne Engineering. Inc. 1008 Woodcreek Drive, Suite 103 College Station, Texas 77845 (979) 693-3838 DRAINAGE REPORT FOR Lots 4 & 9, Block 2 Edelweiss Business Center Site S. Graham Rood Vicinity Map (n.t.s.) JULY, 2004 Prepared By : McClure t Browne Engineering, Inc. 1008 Woodcreek Drive, Suite 103 College Station, Texas 77845 (979) 693-3838 CERTIFICATION I, Michael R. McClure, Registered Professional Engineer No. 32740, State of Texas, certify that the drainage report, for Lots 4 & 9, Block 2 , EDEL WEISS BUSINESS CENTER, was prepared by me in accordance with the provisions of the City of College Station Drainage Policy and Design Standards for the owners thereof. 1~~ Michael R. McClure, P.E. No. 32740 DRAINAGE REPORT INTRODUCTION LOCATION DE SCRIPTION DRAINAGE BASIN TABLE OF CONTENTS Edelweiss Business Center Lots 4 & 9, Block 2 Drainage Report STORM DRAIN DESIGN CRITERIA STORM DRAIN SYSTEM DESIGN DETENTION POND DESIGN CONCLUSION EXHIBITS FEMA FLOOD INSURANCE RATE MAP EXCERPT DRAINAGE AREA MAP -Existing Condition Lot 4 , Block 2 DRAINAGE AREA MAP -Existing Condition Lot 9, Block 2 DRAINAGE AREA MAP -Proposed Condition Lot 4 , Block 2 DRAINAGE AREA MAP -Proposed Condition Lot 9 , Block 2 RATIONAL FORMULA DRAINAGE AREA CALCULATIONS PROPOSED DETENTION POND #1 ROUTING PROPOSED DETENTION POND #2 ROUTING PROPOSED DETENTION POND #3 ROUTING PROPOSED DETENTION POND #4 ROUTING DRAINAGE REPORT Edelweiss Busines s Center Lots 4 & 9 , Block 2 1 1 1 2 2 2 3 4 A B-IA B-IB B-2A B-2B C-1 D-1 D-2 D-3 D-4 ii INTRODUCTION: STORM DRAINAGE REPORT EDELWEISS BUSINESS CENTER Lots 4 & 9, Block 2 College Station, Texas This study is intended to describe the effects upon the drainage system that re sult from the development of Lots 4 & 9, Block 2 , of Edelweiss Business Center. It compares the existing and proposed conditions to show that improvements associated with the development do not cause adverse impacts on downstream properties. LOCATION: The site is located in College Station, near the intersection of Rock Prairie Road and Wellborn Road (FM 2174). The site is bounded by Wellborn Road to the west, property owned by Oak Forest Rentals to the north, Covenant Presbyterian Church to the east, and property owned by Craig Breedlove to the south. DESCRIPTION : The portion of Lot 4 , Block 2 that is being studied covers approximately 0.49 acres and is being developed as a parking lot. The southwestern half of Lot 4 , Block 2 is currently a car wash. Lot 9 , Block 2 covers approximately 0.58 acres and is being developed as a parking lot as well. Both sites currently are covered by pastureland consisting of grassland and brush. The sites drain to the north to an existing 20' drainage and utility easement. DRAINAGE REPORT Lo ts 4 & 9, Block 2 Edelweiss Bu sin ess Center College Station , Texas pg. 1 DRAINAGE BASIN: The site lies in the drainage basin of Lick Creek, which is a tributary of Carters Creek. No part of the site is located in a 100-Year Flood Haz.ard Area according to the Flood Insurance Rate Maps for Brazos County, Texas and Incorporated Areas, Map No . 48041C182 C effective July 2, 1992 as prepared by the Federal Emergency Management Agency (See Exhibit A). STORM DRAIN DESIGN CRITERIA: The proposed drainage system is designed in accordance with the City of College Station Drainage Policy and Design Standards (DPDS). The design storm for the overland and underground drainage systems is a 10-year event, and flow calculations are based on the Rational Method. Pipe sizes were determined from Manning's Equation using an "n" of 0.014. STORM DRAIN SYSTEM DESIGN: Storm water from the proposed development will be captured in the parking lot curbs and conveyed to curb openings that drain into the detention areas. Existing drainage areas and patterns are depicted in Exhibits B-1 A and B-1 B. Exhibits B-2A and B-2B show the proposed drainage areas. Drainage areas #2, #3, and #4 represent the drainage areas that are conveyed to detention ponds #1 , #2 , and #3, respectively. Drainage area #5 represents the drainage that is conveyed to detention pond #4 located on Lot 9, Block 2. Exhibit C-1 gives the runoff calculations for the drainage areas in Exhibits B-1 and B-2 . All computations use the parameters provided in the DPDS. DRAINAGE REPORT Lots 4 & 9, Block 2 Edelweiss Business Ce nter College Sta tion , Te xas pg . 2 DETENTION POND DESIGN: A portion of the proposed parking lot is located on Lot 8R, Block 2. Storm.water detention for this lot was analyzed by L.A. Berry, P.E. with the drainage report for Lots 7 & 8, Block 2. The amount of impervious cover has been reduced by approximately 0.10 acres with the current plan than what was analyzed by Mr. Berry. Therefore the existing storm.water detention for Lot 8 is adequate for the new parking area. The storm.water detention plan for Lot 4, Block 2 consists of a series of3 detention facilities. Detention ponds #1 and #2 are made up by 4" PVC pipes through the curb of a parking median. Storage for these ponds is located in the parking lot immediately upstream of the outlet pipes. The two detention ponds discharge directly into detention pond #3. The flow from these two ponds is combined with the storm.water runoff from drainage area #3 and then routed through the outlet for detention pond #3. The outlet consists of a 2' curb opening located in the northwest comer of the parking lot of Lot 4. The post-developed flowrates are lowered below the pre-developed flowrates for the 5, 10, 25, 50 , and 100 year storms as a result of the three ponds. Storm.water runoff from Lot 9, Block 2 is detained in a pond located in the proposed parking lot planned for Lot 9. The outflow from the pond is metered through a 3 ' curb opening. The storage for this pond is located in the parking lot immediately upstream of the outlet. The post-developed flowrates are lowered below the pre-developed flowrates for the 5, 10, 25 , 50, 100 year storms as a result of this pond. The combined effect of the detention ponds is shown in Table 1: DRAINAGE REPORT Lots 4 & 9, Block 2 Edelweis s Business Center College Station , Texas pg . 3 Existing Proposed Existing Proposed Storm Condition Condition Condition Condition Lot 4 , Block 2 Lot 4 , Block 2 Lot 9, Block 2 Lot 9, Block 2 5-year event 2.8 cfs 2.0 cfs 3.0 cfs 2.7 cfs 10-year event 3.1 cfs 2.2 cfs 3.4 cfs 3.1 cfs 25-year event 3.5 cfs 2.4 cfs 3.9 cfs 3.5 cfs 50-year event 4.0 cfs 2.6 cfs 4.3 cfs 3.8 cfs 100-year event 4.5 cfs 2.9 cfs 4.9 cfs 4.2 cfs Table 1 The ponds were modeled for the 5, 10, 25, 50, and 100-year storm events. The hydrologic analysis of the drainage systems is shown in Exhibits D-2 and D-3. Exhibit D-2 shows the hydraulic routing for the detention ponds. Exhibit D-3 shows hydro graph plots for the range of design storms. CONCLUSION: The post-development flowrate is reduced to a level less than the pre-development flowrate for the 5, 10, 25, 50, and 100-year events. The 100-year event is contained in the pond and released through the pond outlet devices. The drainage design for this site meets the requirements as stated in the City of College Station Drainage Policy and Design Standards. DRAINAGE REPORT Lot s 4 & 9, Block 2 Edel we iss Business Center College Station , Texas pg . 4 / / / N.T.S. Brazos County Unincorporated Areas 481195 EXHIBIT A Flood Insurance Rate Map Excerpt Brazos County, Texas and Incorporated Areas Map Numbers: 48041 C0182C Effective Date: JULY 2, 1992 ~ ~ 0 0 D:: w ...I ...I < ~ a. < II. w 0 j:: .... 0 C> D:: ...I z < z < < w z w (J =3 ~ ~~ w :E z ...I 0 ...I D:: .... ~ ~ u; w < w C> ~ .... >z 0 z D:: w g 0 .... ::> < D:: a. o~ NO. AC. 0.4 0.55 0.9 ft. 1 1.92 1.92 0.00 0.00 0.77 200.0 2 0.16 0.04 0.00 0.12 0.12 1.0 3 0.38 0.03 0.00 0.35 0.33 1.0 4 0.22 0.04 0.00 0.18 0.18 2.0 5 0.77 0.53 0.00 0.24 0.43 3.0 Ex1 1.92 1.92 0.00 0.00 0.77 200.0 Ex2 0.76 0.76 0.00 0.00 0.30 211.0 Ex3 0.77 0.77 0.00 0.00 0.31 100.0 EXHIBIT C-1 Rational Formula Drainage Area Calculations Edelweiss Business Center, Lot 4 & 9, Block 2 ~ 0 ~ ~ ...I II. 0 0 0 ...I ...I z II. II. ~ =3 D::~ D:: u 0 u w .... w .... .... D:: ...I I= C> I= ...I 0 .; w ...I ::> z ::>...I ...I Ci w >< !!;! II) a It) 0 II. C> ~ C> ~ (J ::> ~ !!! C1 ft. ft. ft. ft/s min min In/Hr cfs In/Hr cfs 1.5 355.0 1.0 0.8 11.1 11.1 6.04 4.6 7.4 5.7 1.0 134.0 2.0 2.4 0.9 5.0 8.22 1.0 9.9 1.2 1.0 135.0 2.0 2.4 0.9 5.0 8.22 2.7 9.9 3.2 2.0 136.0 3.0 3.0 0.8 5.0 8.22 1.5 9.9 1.8 3.0 137.0 4.0 3.4 0.7 5.0 8.22 3.5 9.9 4.2 1.5 355.0 1.0 0.6 11.1 11.1 6.04 4.6 7.4 5.7 2.5 140.0 2.0 1.1 5.6 5.6 7.95 2.4 9.5 2.9 3.5 41.0 3.0 1.7 1.4 5.0 8.22 2.5 9.9 3.0 Q It) Q .... It) a :!: C1 ~ In/Hr cfs In/Hr cfs 8.3 6.4 9.4 7.3 11.0 1.4 12.5 1.6 11.0 3.6 12.5 4.1 11.0 2.0 12.5 2.2 11.0 4.7 12.5 5.4 8.3 6.4 9.4 7.3 10.6 3.2 12.1 3.7 11.0 3.4 12.5 3.9 Q ~ It) C1 In/Hr cfs 10.7 8.2 14.1 1.7 14.1 4.6 14.1 2.5 14.1 6.0 10.7 8.2 13.7 4.2 14.1 4.3 Q Q Q Q a :!: In/Hr cfs 12.0 9.2 15.8 2.0 15.8 5.2 15.8 2.8 15.6 6.8 12.0 9.2 15.3 4.7 15.8 4.9 7/7/2004 10000050-dra.xls Exhibit C-1 EXHIBIT "D-1" PROPOSED DETENTION POND 11 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 D.A. # D.A. # Pond Routlna EVENT= 5 c .c 0 a Cl. w + I! z c !! ~ iii i a ~ + i ..., ::E I c :t ... 8 Ill Ill N N N a Qp 1.2 Tc 5.0 Inc 1.0 Time cfs cfs cfs cfs cfs cfs 0.0 0.0 0.0 0.24 0.00 0.00 0.00 1.0 0.2 0.2 0.73 0.18 0.24 0.03 2.0 0.5 0.5 1.22 0.73 0.91 0.09 3.0 0.7 0.7 1.71 1.62 1.96 0.17 4.0 1.0 1.0 2.20 2.96 3.33 0.19 5.0 1.2 1.2 2.32 4.72 5.16 0.22 6.0 1.1 1.1 2.08 6.55 7.04 0.25 7.0 1.0 1.0 1.83 8.08 8.62 0.27 8.0 0.9 0.9 1.59 9.36 9.92 0.28 9.0 0.7 0.7 1.34 10.38 10.95 0.28 10.0 0.6 0.6 1.10 11.14 11.72 0.29 11.0 0.5 0.5 0.86 11.66 12.24 0.29 12.0 0.4 0.4 0.61 11.92 12.51 0.29 13.0 0.2 0.2 0.37 11.94 12.53 0.29 14.0 0.1 0.1 0.12 11.72 12.31 0.29 15.0 0.0 0.0 0.00 11.26 11.84 0.29 16.0 0.0 0.0 0.00 10.69 11.26 0.29 17.0 0.0 0.0 0.00 10.12 10.69 0.28 18.0 0.0 0.0 0.00 9.57 10.12 0.28 19.0 0.0 0.0 0.00 9.01 9.57 0.28 20.0 0.0 0.0 0.00 8.47 9.01 0.27 21.0 0.0 0.0 0.00 7.93 8.47 0.27 22.0 0.0 0.0 0.00 7.41 7.93 0.26 23.0 0.0 0.0 0.00 6.90 7.41 0.25 24.0 0.0 0.0 0.00 6.41 6.90 0.25 25.0 0.0 0.0 0.00 5.93 6.41 0.24 26.0 0.0 0.0 0.00 5.47 5.93 0.23 27.0 0.0 0.0 0.00 5.03 5.47 0.22 28.0 0.0 0.0 0.00 4.59 5.03 0.22 29.0 0.0 0.0 0.00 4.18 4.59 0.21 30.0 0.0 0.0 0.00 3.77 4.18 0.20 31.0 0.0 0.0 0.00 3.38 3.77 0.20 32.0 0.0 0.0 0.00 3.00 3.38 0.19 33.0 0.0 0.0 0.00 2.64 3.00 0.18 34.0 0.0 0.0 0.00 2.28 2.64 0.18 35.0 0.0 0.0 0.00 1.94 2.28 0.17 36.0 0.0 0.0 0.00 1.61 1.94 0.17 37.0 0.0 0.0 0.00 1.32 1.61 0.14 38.0 0.0 0.0 0.00 1.08 1.32 0.12 39.0 0.0 0.0 0.00 0.88 1.08 0.10 40.0 0.0 0.0 0.00 0.71 0.88 0.09 41.0 0.0 0.0 0.00 0.57 0.71 0.07 42.0 0.0 0.0 0.00 0.45 0.57 0.06 43.0 0.0 0.0 0.00 0.35 0.45 0.05 44.0 0.0 0.0 0.00 0.26 0.35 0.04 45.0 0.0 0.0 0.00 0.19 0.26 0.04 46.0 0.0 0.0 0.00 0.13 0.19 0.03 47.0 0.0 0.0 0.00 0.08 0.13 0.03 48.0 0.0 0.0 0.00 0.08 0.08 0.00 49.0 0.0 0.0 0.00 0.08 0.08 0.00 50.0 0.0 0.0 0.00 0.08 0.08 0.00 51.0 0.0 0.0 0.00 0.08 0.08 0.00 52.0 0.0 0.0 0.00 0.08 0.08 0.00 53.0 0.0 0.0 0.00 0.08 0.08 0.00 54.0 0.0 0.0 0.00 0.08 0.08 0.00 55.0 0.0 0.0 0.00 0.08 0.08 0.00 56.0 0.0 0.0 0.00 0.08 0.08 0.00 57.0 0.0 0.0 0.00 0.08 0.08 0.00 58.0 0.0 0.0 0.00 0.08 0.08 0.00 59.0 0.0 0.0 0.00 0.08 0.08 0.00 60.0 0.0 0.0 0.00 0.08 0.08 0.00 61.0 0.0 0.0 0.00 0.08 0.08 0.00 62.0 0.0 0.0 0.00 0.08 0.08 0.00 63.0 0.0 0.0 0.00 0.08 0.08 0.00 64.0 0.0 0.0 0.00 0.08 0.08 0.00 PEAK FLOWS 1.2 1.2 0.3 o.oo indicates in~al condition c 0 ;:: ..., .. c > 0 .!! IL W ft 332.9 333.0 333.1 333.3 333.3 333.4 333.5 333.5 333.5 333.6 333.6 333.6 333.6 333.6 333.6 333.6 333.6 333.6 333.5 333.5 333.5 333.5 333.5 333.5 333.4 333.4 333.4 333.4 333.4 333.4 333.3 333.3 333.3 333.3 333.3 333.3 333.3 333.2 333.2 333.1 333.1 333.1 333.1 333.1 333.0 333.0 333.0 333.0 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 333.60 0 w II) _.o < IL ..... 0 gf cfs 0.00 0.03 0.09 0.17 0.19 0.22 0.25 0.27 0.28 0.28 0.29 0.29 0.29 0.29 0.29 0.29 0.29 0.28 0.28 0.28 0.27 0.27 0.26 0.25 0.25 0.24 0.23 0.22 0.22 0.21 0.20 0.20 0.19 0.18 0.18 0.17 0.17 0.14 0.12 0.10 0.09 0.07 0.06 0.05 0.04 0.04 0.03 0.03 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.3 10000050-dra.xls ExhiM 0-1 EXHIBIT "D-1" PROPOSED DETENTION POND 11 ROUTING Edelweiss Business Center, Lot 4 & ~. Block 2 D.A. # D.A.# Pond Routlna EVENT= 10 c z: Q i a. w I! z c ~ iii i a ..., ::E ! ~ i i :r .. 0 ~ Ill N 0 N N a Qo 1.4 Tc 5.0 Inc 1.0 Time cfs cfs cfs cfs cfs cfs 0.0 0.0 0.0 0.27 0.00 0.00 0.00 1.0 0.3 0.3 0.82 0.20 0.27 0.04 2.0 0.5 0.5 1.36 0.82 1.02 0.10 3.0 0.8 0.8 1.91 1.85 2.19 0.17 4.0 1.1 1.1 2.45 3.36 3.75 0.20 5.0 1.4 1.4 2.59 5.36 5.81 0.23 6.0 1.2 1.2 2.31 7.42 7.94 0.26 7.0 1.1 1.1 2.04 9.18 9.73 0.28 8.0 1.0 1.0 1.77 10.65 11.22 0.29 9.0 0.8 0.8 1.50 11.83 12.42 0.29 10.0 0.7 0.7 1.23 12.73 13.33 0.30 11.0 0.5 0.5 0.95 13.35 13.95 0.30 12.0 0.4 0.4 0.68 13.69 14.30 0.31 13.0 0.3 0.3 0.41 13.75 14.37 0.31 14.0 0.1 0.1 0.14 13.55 14.16 0.31 15.0 0.0 0.0 0.00 13.08 13.69 0.30 16.0 0.0 0.0 0.00 12.49 13.08 0.30 17.0 0.0 0.0 0.00 11.90 12.49 0.29 18.0 0.0 0.0 0.00 11.32 11.90 0.29 19.0 0.0 0.0 0.00 10.74 11.32 0.29 20.0 0.0 0.0 0.00 10.18 10.74 0.28 21.0 0.0 0.0 0.00 9.62 10.18 0.28 22.0 0.0 0.0 0.00 9.06 9.62 0.28 23.0 0.0 0.0 0.00 8.52 9.06 0.27 24.0 0.0 0.0 0.00 7.98 8.52 0.27 25.0 0.0 0.0 0.00 7.45 7.98 0.26 26.0 0.0 0.0 0.00 6.94 7.45 0.25 27.0 0.0 0.0 0.00 6.45 6.94 0.25 28.0 0.0 0.0 0.00 5.97 6.45 0.24 29.0 0.0 0.0 0.00 5.51 5.97 0.23 30.0 0.0 0.0 0.00 5.07 5.51 0.22 31.0 0.0 0.0 0.00 4.63 5.07 0.22 32.0 0.0 0.0 0.00 4.21 4.63 0.21 33.0 0.0 0.0 0.00 3.81 4.21 0.20 34.0 0.0 0.0 0.00 3.42 3.81 0.20 35.0 0.0 0.0 0.00 3.04 3.42 0.19 36.0 0.0 0.0 0.00 2.67 3.04 0.18 37.0 0.0 0.0 0.00 2.32 2.67 0.18 38.0 0.0 0.0 0.00 1.97 2.32 0.17 39.0 0.0 0.0 0.00 1.64 1.97 0.17 40.0 0.0 0.0 0.00 1.35 1.64 0.15 41.0 0.0 0.0 0.00 1.10 1.35 0.12 42.0 0.0 0.0 0.00 0.90 1.10 0.10 43.0 0.0 0.0 0.00 0.72 0.90 0.09 44.0 0.0 0.0 0.00 0.58 0.72 0.07 45.0 0.0 0.0 0.00 0.46 0.58 0.06 46.0 0.0 0.0 0.00 0.35 0.46 0.05 47.0 0.0 0.0 0.00 0.27 0.35 0.04 48.0 0.0 0.0 0.00 0.20 0.27 0.04 49.0 0.0 0.0 0.00 0.14 0.20 0.03 50.0 0.0 0.0 0.00 0.08 0.14 0.03 51.0 0.0 0.0 0.00 0.08 0.08 0.00 52.0 0.0 0.0 0.00 0.08 0.08 0.00 53.0 0.0 0.0 0.00 0.08 0.08 0.00 54.0 0.0 0.0 0.00 0.08 0.08 0.00 55.0 0.0 0.0 0.00 0.08 0.08 0.00 56.0 0.0 0.0 0.00 0.08 0.08 0.00 57.0 0.0 0.0 0.00 0.08 0.08 0.00 58.0 0.0 0.0 0.00 0.08 0.08 0.00 59.0 0.0 0.0 0.00 0.08 0.08 0.00 60.0 0.0 0.0 0.00 0.08 0.08 0.00 61.0 0.0 0.0 0.00 0.08 0.08 0.00 62.0 0.0 0.0 0.00 0.08 0.08 0.00 63.0 0.0 0.0 0.00 0.08 0.08 0.00 64.0 0.0 0.0 0.00 0.08 0.08 0.00 PEAK FLOWS 1.4 1.4 0.3 0.00 indicates inltal condition c 0 "'~ c > 0 .!! D.. w ft 332.9 333.0 333.1 333.3 333.3 333.4 333.5 333.5 333.6 333.6 333.6 333.6 333.6 333.6 333.6 333.6 333.6 333.6 333.6 333.6 333.6 333.5 333.5 333.5 333.5 333.5 333.5 333.5 333.4 333.4 333.4 333.4 333.4 333.3 333.3 333.3 333.3 333.3 333.3 333.3 333.2 333.2 333.1 333.1 333.1 333.1 333.1 333.0 333.0 333.0 333.0 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 333.64 Q w ,,, ~o j! t> ~IE cfs 0.00 0.04 0.10 0.17 0.20 0.23 0.26 0.28 0.29 0.29 0.30 0.30 0.31 0.31 0.31 0.30 0.30 0.29 0.29 0.29 0.28 0.28 0.28 0.27 0.27 0.26 0.25 0.25 0.24 0.23 0.22 0.22 0.21 0.20 0.20 0.19 0.18 0.18 0.17 0.17 0.15 0.12 0.10 0.09 0.07 0.06 0.05 0.04 0.04 0.03 0.03 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.3 10000050-dra.xls Exhibit D-1 EXHIBIT "D-1" PROPOSED DETENTION POND #1 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 D.A. # D.A.# Pond Routlna EVENT= 25 c a Q a f! w c ~ z ~ iii i a ::E \!; + ... ""' I c + :r .. 8 iii II) c N N N a Qp 1.6 Tc 5.0 Inc 1.0 Time cfs cfs cfs cfs cfs cfs 0.0 0.0 0.0 0.31 0.00 0.00 0.00 1.0 0.3 0.3 0.93 0.23 0.31 0.04 2.0 0.6 0.6 1.55 0.95 1.16 0.11 3.0 0.9 0.9 2.17 2.15 2.50 0.17 4.0 1.2 1.2 2.79 3.91 4.32 0.20 5.0 1.6 1.6 2.95 6.22 6.70 0.24 6.0 1.4 1.4 2.64 8.62 9.16 0.27 7.0 1.2 1.2 2.33 10.68 11.25 0.29 8.0 1.1 1.1 2.02 12.41 13.01 0.30 9.0 0.9 0.9 1.71 13.81 14.43 0.31 10.0 0.8 0.8 1.40 14.89 15.52 0.31 11.0 0.6 0.6 1.09 15.65 16.29 0.32 12.0 0.5 0.5 0.78 16.09 16.73 0.32 13.0 0.3 0.3 0.47 16.22 16.86 0.32 14.0 0.2 0.2 0.16 16.04 16.68 0.32 15.0 0.0 0.0 0.00 15.56 16.20 0.32 16.0 0.0 0.0 0.00 14.93 15.56 0.31 17.0 0.0 0.0 0.00 14.31 14.93 0.31 18.0 0.0 0.0 0.00 13.70 14.31 0.31 19.0 0.0 0.0 0.00 13.09 13.70 0.30 20.0 0.0 0.0 0.00 12.49 13.09 0.30 21.0 0.0 0.0 0.00 11.91 12.49 0.29 22.0 0.0 0.0 0.00 11.32 11.91 0.29 23.0 0.0 0.0 0.00 10.75 11.32 0.29 24.0 0.0 0.0 0.00 10.18 10.75 0.28 25.0 0.0 0.0 0.00 9.62 10.18 0.28 26.0 0.0 0.0 0.00 9.07 9.62 0.28 27.0 0.0 0.0 0.00 8.53 9.07 0.27 28.0 0.0 0.0 0.00 7.99 8.53 0.27 29.0 0.0 0.0 0.00 7.46 7.99 0.26 30.0 0.0 0.0 0.00 6.95 7.46 0.26 31.0 0.0 0.0 0.00 6.46 6.95 0.25 32.0 0.0 0.0 0.00 5.98 6.46 0.24 33.0 0.0 0.0 0.00 5.52 5.98 0.23 34.0 0.0 0.0 0.00 5.07 5.52 0.22 35.0 0.0 0.0 0.00 4.64 5.07 0.22 36.0 0.0 0.0 0.00 4.22 4.64 0.21 37.0 0.0 0.0 0.00 3.81 4.22 0.20 38.0 0.0 0.0 0.00 3.42 3.81 0.20 39.0 0.0 0.0 0.00 3.04 3.42 0.19 40.0 0.0 0.0 0.00 2.68 3.04 0.18 41.0 0.0 0.0 0.00 2.32 2.68 0.18 42.0 0.0 0.0 0.00 1.98 2.32 0.17 43.0 0.0 0.0 0.00 1.64 1.98 0.17 44.0 0.0 0.0 0.00 1.35 1.64 0.15 45.0 0.0 0.0 0.00 1.11 1.35 0.12 46.0 0.0 0.0 0.00 0.90 1.11 0.10 47.0 0.0 0.0 0.00 0.73 0.90 0.09 48.0 0.0 0.0 0.00 0.58 0.73 0.07 49.0 0.0 0.0 0.00 0.46 0.58 0.06 50.0 0.0 0.0 0.00 0.36 0.46 0.05 51.0 0.0 0.0 0.00 0.27 0.36 0.04 52.0 0.0 0.0 0.00 0.20 0.27 0.04 53.0 0.0 0.0 0.00 0.14 0.20 0.03 54.0 0.0 0.0 0.00 0.09 0.14 0.03 55.0 0.0 0.0 0.00 0.09 0.09 0.00 56.0 0.0 0.0 0.00 0.09 0.09 0.00 57.0 0.0 0.0 0.00 0.09 0.09 0.00 58.0 0.0 0.0 0.00 0.09 0.09 0.00 59.0 0.0 0.0 0.00 0.09 0.09 0.00 60.0 0.0 0.0 0.00 0.09 0.09 0.00 61.0 0.0 0.0 0.00 0.09 0.09 0.00 62.0 0.0 0.0 0.00 0.09 0.09 0.00 63.0 0.0 0.0 0.00 0.09 0.09 0.00 64.0 0.0 0.0 0.00 0.09 0.09 0.00 PEAK FLOWS 1.6 1.6 0.3 0.00 indicates inltal condition c 0 ;:: 11 IL W ft 332.9 333.0 333.2 333.3 333.3 333.4 333.5 333.6 333.6 333.6 333.7 333.7 333.7 333.7 333.7 333.7 333.7 333.6 333.6 333.6 333.6 333.6 333.6 333.6 333.6 333.5 333.5 333.5 333.5 333.5 333.5 333.5 333.4 333.4 333.4 333.4 333.4 333.3 333.3 333.3 333.3 333.3 333.3 333.3 333.2 333.2 333.1 333.1 333.1 333.1 333.1 333.0 333.0 333.0 333.0 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 332.9 333.69 0 w "' -' 0 ~~ ~f cfs 0.00 0.04 0.11 0.17 0.20 0.24 0.27 0.29 0.30 0.31 0.31 0.32 0.32 0.32 0.32 0.32 0.31 0.31 0.31 0.30 0.30 0.29 0.29 0.29 0.28 0.28 0.28 0.27 0.27 0.26 0.26 0.25 0.24 0.23 0.22 0.22 0.21 0.20 0.20 0.19 0.18 0.18 0.17 0.17 0.15 0.12 0.10 0.09 0.07 0.06 0.05 0.04 0.04 O.Q3 0.03 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.3 10000050-dra.xls Exhibit D-1 EXHIBIT "D-1" PROPOSED DETENTION POND #1 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 D.A. # D.A.# Pond Routing EVENT= 50 c -&. 0 a I! w c ~ ~ z .... a iii + ~ .... .... :E c + 'to I c + ~ .. 8 U) c N N N a Qo 1.7 Tc 5.0 Inc 1.0 Time cfs cfs cfs cfs cfs cfs 0.0 0.0 0.0 0.35 0.00 0.00 0.00 1.0 0.3 0.3 1.05 0.26 0.35 0.04 2.0 0.7 0.7 1.75 1.07 1.31 0.12 3.0 1.0 1.0 2.45 2.46 2.82 0.18 4.0 1.4 1.4 3.15 4.48 4.91 0.21 5.0 1.7 1.7 3.32 7.11 7.63 0.26 6.0 1.6 1.6 2.97 9.87 10.43 0.28 7.0 1.4 1.4 2.62 12.25 12.84 0.30 8.0 1.2 1.2 2.27 14.25 14.87 0.31 9.0 1.0 1.0 1.92 15.88 16.52 0.32 10.0 0.9 0.9 1.57 17.15 17.81 0.33 11.0 0.7 0.7 1.22 18.05 18.72 0.33 12.0 0.5 0.5 0.87 18.60 19.28 0.34 13.0 0.3 0.3 0.52 18.79 19.47 0.34 14.0 0.2 0.2 0.17 18.64 19.32 0.34 15.0 0.0 0.0 0.00 18.14 18.82 0.34 16.0 0.0 0.0 0.00 17.48 18.14 0.33 17.0 0.0 0.0 0.00 16.83 17.48 0.33 18.0 0.0 0.0 0.00 16.18 16.83 0.32 19.0 0.0 0.0 0.00 15.55 16.18 0.32 20.0 0.0 0.0 0.00 14.92 15.55 0.31 21.0 0.0 0.0 0.00 14.30 14.92 0.31 22.0 0.0 0.0 0.00 13.69 14.30 0.31 23.0 0.0 0.0 0.00 13.08 13.69 0.30 24.0 0.0 0.0 0.00 12.48 13.08 0.30 25.0 0.0 0.0 0.00 11.89 12.48 0.29 26.0 0.0 0.0 0.00 11.31 11.89 0.29 27.0 0.0 0.0 0.00 10.74 11.31 0.29 28.0 0.0 0.0 0.00 10.17 10.74 0.28 29.0 0.0 0.0 0.00 9.61 10.17 0.28 30.0 0.0 0.0 0.00 9.06 9.61 0.28 31.0 0.0 0.0 0.00 8.52 9.06 0.27 32.0 0.0 0.0 0.00 7.98 8.52 0.27 33.0 0.0 0.0 0.00 7.45 7.98 0.26 34.0 0.0 0.0 0.00 6.94 7.45 0.25 35.0 0.0 0.0 0.00 6.45 6.94 0.25 36.0 0.0 0.0 0.00 5.97 6.45 0.24 37.0 0.0 0.0 0.00 5.51 5.97 0.23 38.0 0.0 0.0 0.00 5.06 5.51 0.22 39.0 0.0 0.0 0.00 4.63 5.06 0.22 40.0 0.0 0.0 0.00 4.21 4.63 0.21 41.0 0.0 0.0 0.00 3.81 4.21 0.20 42.0 0.0 0.0 0.00 3.42 3.81 0.20 43.0 0.0 0.0 0.00 3.04 3.42 0.19 44.0 0.0 0.0 0.00 2.67 3.04 0.18 45.0 0.0 0.0 0.00 2.31 2.67 0.18 46.0 0.0 0.0 0.00 1.97 2.31 0.17 47.0 0.0 0.0 0.00 1.64 1.97 0.17 48.0 0.0 0.0 0.00 1.35 1.64 0.15 49.0 0.0 0.0 0.00 1.10 1.35 0.12 50.0 0.0 0.0 0.00 0.90 1.10 0.10 51.0 0.0 0.0 0.00 0.72 0.90 0.09 52.0 0.0 0.0 0.00 0.58 0.72 0.07 53.0 0.0 0.0 0.00 0.46 0.58 0.06 54.0 0.0 0.0 0.00 0.35 0.46 0.05 55.0 0.0 0.0 0.00 0.27 0.35 0.04 56.0 0.0 0.0 0.00 0.20 0.27 0.04 57.0 0.0 0.0 0.00 0.14 0.20 0.03 58.0 0.0 0.0 0.00 0.08 0.14 0.03 59.0 0.0 0.0 0.00 0.08 0.08 0.00 60.0 0.0 0.0 0.00 0.08 0.08 0.00 61.0 0.0 0.0 0.00 0.08 0.08 0.00 62.0 0.0 0.0 0.00 0.08 0.08 0.00 63.0 0.0 0.0 0.00 0.08 0.08 0.00 64.0 0.0 0.0 0.00 0.08 0.08 0.00 PEAK FLOWS 1.7 1.7 0.3 o.oo indicates inital condition c .2 'to '\ii c > 0 ..! A. w ft 332.9 333.0 333.2 333.3 333.4 333.5 333.5 333.6 333.6 333.7 333.7 333.7 333.7 333.7 333.7 333.7 333.7 333.7 333.7 333.7 333.7 333.6 333.6 333.6 333.6 333.6 333.6 333.6 333.6 333.5 333.5 333.5 333.5 333.5 333.5 333.5 333.4 333.4 333.4 333.4 333.4 333.3 333.3 333.3 333.3 333.3 333.3 333.3 333.2 333.2 333.1 333.1 333.1 333.1 333.1 333.0 333.0 333.0 333.0 332.9 332.9 332.9 332.9 332.9 332.9 333.75 0 w U) _,o ~~ ~ IE cfs 0.00 0.04 0.12 0.18 0.21 0.26 0.28 0.30 0.31 0.32 0.33 0.33 0.34 0.34 0.34 0.34 0.33 0.33 0.32 0.32 0.31 0.31 0.31 0.30 0.30 0.29 0.29 0.29 0.28 0.28 0.28 0.27 0.27 0.26 0.25 0.25 0.24 0.23 0.22 0.22 0.21 0.20 0.20 0.19 0.18 0.18 0.17 0.17 0.15 0.12 0.10 0.09 0.07 0.06 0.05 0.04 0.04 0.03 0.03 0.00 0.00 0.00 0.00 0.00 0.00 0.3 10000050-dra.xls Exhibit 0-1 EXHIBIT "D-1" PROPOSED DETENTION POND 11 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 D.A. # D.A. # Pond Routing EVENT= 100 c r. c a Q. I! w c ~ z ~ iii .,... a t: ~ .,... 8 + t ,, + c :t .. .,, .,, N c N N a QD 2.0 Tc 5.0 Inc 1.0 Time cfs cfs cfs cfs cfs cfs 0.0 0.0 0.0 0.39 0.00 0.00 0.00 1.0 0.4 0.4 1.17 0.30 0.39 0.05 2.0 0.8 0.8 1.96 1.21 1.47 0.13 3.0 1.2 1.2 2.74 2.79 3.17 0.19 4.0 1.6 1.6 3.52 5.09 5.53 0.22 5.0 2.0 2.0 3.72 8.07 8.61 0.27 6.0 1.8 1.8 3.33 11.21 11.79 0.29 7.0 1.6 1.6 2.94 13.92 14.53 0.31 8.0 1.4 1.4 2.54 16.21 16.85 0.32 9.0 1.2 1.2 2.15 18.08 18.75 0.33 10.0 1.0 1.0 1.76 19.55 20.23 0.34 11.0 0.8 0.8 1.37 20.62 21.31 0.35 12.0 0.6 0.6 0.98 21.29 21.99 0.35 13.0 0.4 0.4 0.59 21.56 22.26 0.35 14.0 0.2 0.2 0.20 21.45 22.15 0.35 15.0 0.0 0.0 0.00 20.95 21.65 0.35 16.0 0.0 0.0 0.00 20.26 20.95 0.35 17.0 0.0 0.0 0.00 19.57 20.26 0.34 18.0 0.0 0.0 0.00 18.89 19.57 0.34 19.0 0.0 0.0 0.00 18.22 18.89 0.34 20.0 0.0 0.0 0.00 17.56 18.22 0.33 21.0 0.0 0.0 0.00 16.90 17.56 0.33 22.0 0.0 0.0 0.00 16.26 16.90 0.32 23.0 0.0 0.0 0.00 15.62 16.26 0.32 24.0 0.0 0.0 0.00 14.99 15.62 0.31 25.0 0.0 0.0 0.00 14.37 14.99 0.31 26.0 0.0 0.0 0.00 13.76 14.37 0.31 27.0 0.0 0.0 0.00 13.15 13.76 0.30 28.0 0.0 0.0 0.00 12.55 13.15 0.30 29.0 0.0 0.0 0.00 11.96 12.55 0.29 30.0 0.0 0.0 0.00 11.38 11.96 0.29 31.0 0.0 0.0 0.00 10.80 11.38 0.29 32.0 0.0 0.0 0.00 10.24 10.80 0.28 33.0 0.0 0.0 0.00 9.68 10.24 0.28 34.0 0.0 0.0 0.00 9.12 9.68 0.28 35.0 0.0 0.0 0.00 8.58 9.12 0.27 36.0 0.0 0.0 0.00 8.04 8.58 0.27 37.0 0.0 0.0 0.00 7.51 8.04 0.26 38.0 0.0 0.0 0.00 7.00 7.51 0.26 39.0 0.0 0.0 0.00 6.50 7.00 0.25 40.0 0.0 0.0 0.00 6.03 6.50 0.24 41.0 0.0 0.0 0.00 5.56 6.03 0.23 42.0 0.0 0.0 0.00 5.11 5.56 0.22 43.0 0.0 0.0 0.00 4.68 5.11 0.22 44.0 0.0 0.0 0.00 4.26 4.68 0.21 45.0 0.0 0.0 0.00 3.85 4.26 0.20 46.0 0.0 0.0 0.00 3.46 3.85 0.20 47.0 0.0 0.0 0.00 3.08 3.46 0.19 48.0 0.0 0.0 0.00 2.71 3.08 0.18 49.0 0.0 0.0 0.00 2.35 2.71 0.18 50.0 0.0 0.0 0.00 2.01 2.35 0.17 51.0 0.0 0.0 0.00 1.68 2.01 0.17 52.0 0.0 0.0 0.00 1.38 1.68 0.15 53.0 0.0 0.0 0.00 1.13 1.38 0.13 54.0 0.0 0.0 0.00 0.92 1.13 0.11 55.0 0.0 0.0 0.00 0.74 0.92 0.09 56.0 0.0 0.0 0.00 0.59 0.74 0.07 57.0 0.0 0.0 0.00 0.47 0.59 0.06 58.0 0.0 0.0 0.00 0.37 0.47 0.05 59.0 0.0 0.0 0.00 0.28 0.37 0.04 60.0 0.0 0.0 0.00 0.20 0.28 0.04 61.0 0.0 0.0 0.00 0.14 0.20 0.03 62.0 0.0 0.0 0.00 0.09 0.14 0.03 63.0 0.0 0.0 0.00 0.09 0.09 0.00 64.0 0.0 0.0 0.00 0.09 0.09 0.00 PEAK FLOWS 2.0 2.0 0.4 o.oo indicates inttal condition c 0 ;:; ]j IL W ft 332.9 333.0 333.2 333.3 333.4 333.5 333.6 333.6 333.7 333.7 333.8 333.8 333.8 333.8 333.8 333.8 333.8 333.8 333.8 333.7 333.7 333.7 333.7 333.7 333.7 333.7 333.6 333.6 333.6 333.6 333.6 333.6 333.6 333.5 333.5 333.5 333.5 333.5 333.5 333.5 333.4 333.4 333.4 333.4 333.4 333.3 333.3 333.3 333.3 333.3 333.3 333.3 333.2 333.2 333.1 333.1 333.1 333.1 333.1 333.0 333.0 333.0 333.0 332.9 332.9 333.80 c w .,, _, 0 ~~ ~ IE cfs 0.00 0.05 0.13 0.19 0.22 0.27 0.29 0.31 0.32 0.33 0.34 0.35 0.35 0.35 0.35 0.35 0.35 0.34 0.34 0.34 0.33 0.33 0.32 0.32 0.31 0.31 0.31 0.30 0.30 0.29 0.29 0.29 0.28 0.28 0.28 0.27 0.27 0.26 0.26 0.25 0.24 0.23 0.22 0.22 0.21 0.20 0.20 0.19 0.18 0.18 0.17 0.17 0.15 0.13 0.11 0.09 0.07 0.06 0.05 0.04 0.04 0.03 0.03 0.00 0.00 0.4 10000050-dra.xls Exhibit D-1 EXHIBIT "D-2" PROPOSED DETENTION POND 12 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 D.A. # D.A. # Pond Routing EVENT= 5 c &; 0 i c. I? w c z ~ iii t a t!; t ..... ,, 8 ! + :t ... W; VJ c "" N N a Qp 3.2 Tc 5.0 Inc 1.0 Time cfs cfs cfs cfs cfs cfs 0.0 0.0 0.0 0.64 0.00 0.00 0.00 1.0 0.6 0.6 1.93 0.39 0.64 0.13 2.0 1.3 1.3 3.22 1.88 2.32 0.22 3.0 1.9 1.9 4.51 4.52 5.10 0.29 4.0 2.6 2.6 5.80 8.39 9.03 0.32 5.0 3.2 3.2 6.12 13.42 14.19 0.38 6.0 2.9 2.9 5.48 18.49 19.54 0.53 7.0 2.6 2.6 4.83 22.67 23.96 0.65 8.0 2.3 2.3 4.19 26.01 27.50 0.74 9.0 1.9 1.9 3.54 28.57 30.20 0.82 10.0 1.6 1.6 2.90 30.38 32.11 0.87 11.0 1.3 1.3 2.26 31.48 33.28 0.90 12.0 1.0 1.0 1.61 31.92 33.74 0.91 13.0 0.6 0.6 0.97 31.72 33.53 0.91 14.0 0.3 0.3 0.32 30.92 32.68 0.88 15.0 0.0 0.0 0.00 29.55 31.24 0.84 16.0 0.0 0.0 0.00 27.96 29.55 0.80 17.0 0.0 0.0 0.00 26.45 27.96 0.75 18.0 0.0 0.0 0.00 25.02 26.45 0.71 19.0 0.0 0.0 0.00 23.67 25.02 0.68 20.0 0.0 0.0 0.00 22.39 23.67 0.64 21.0 0.0 0.0 0.00 21.18 22.39 0.60 22.0 0.0 0.0 0.00 20.04 21.18 0.57 23.0 0.0 0.0 0.00 18.95 20.04 0.54 24.0 0.0 0.0 0.00 17.93 18.95 0.51 25.0 0.0 0.0 0.00 16.96 17.93 0.48 26.0 0.0 0.0 0.00 16.05 16.96 0.46 27.0 0.0 0.0 0.00 15.18 16.05 0.43 28.0 0.0 0.0 0.00 14.36 15.18 0.41 29.0 0.0 0.0 0.00 13.58 14.36 0.39 30.0 0.0 0.0 0.00 12.85 13.58 0.37 31.0 0.0 0.0 0.00 12.14 12.85 0.35 32.0 0.0 0.0 0.00 11.45 12.14 0.35 33.0 0.0 0.0 0.00 10.76 11.45 0.34 34.0 0.0 0.0 0.00 10.09 10.76 0.34 35.0 0.0 0.0 0.00 9.43 10.09 0.33 36.0 0.0 0.0 0.00 8.77 9.43 0.33 37.0 0.0 0.0 0.00 8.14 8.77 0.32 38.0 0.0 0.0 0.00 7.51 8.14 0.31 39.0 0.0 0.0 0.00 6.89 7.51 0.31 40.0 0.0 0.0 0.00 6.28 6.89 0.30 41.0 0.0 0.0 0.00 5.68 6.28 0.30 42.0 0.0 0.0 0.00 5.09 5.68 0.29 43.0 0.0 0.0 0.00 4.52 5.09 0.29 44.0 0.0 0.0 0.00 3.97 4.52 0.27 45.0 0.0 0.0 0.00 3.44 3.97 0.26 46.0 0.0 0.0 0.00 2.94 3.44 0.25 47.0 0.0 0.0 0.00 2.47 2.94 0.24 48.0 0.0 0.0 0.00 2.02 2.47 0.23 49.0 0.0 0.0 0.00 1.59 2.02 0.22 50.0 0.0 0.0 0.00 1.18 1.59 0.21 51.0 0.0 0.0 0.00 0.81 1.18 0.18 52.0 0.0 0.0 0.00 0.52 0.81 0.14 53.0 0.0 0.0 0.00 0.29 0.52 0.11 54.0 0.0 0.0 0.00 0.11 0.29 0.09 55.0 0.0 0.0 0.00 0.00 0.11 0.07 56.0 0.0 0.0 0.00 0.00 0.00 0.00 57.0 0.0 0.0 0.00 0.00 0.00 0.00 58.0 0.0 0.0 0.00 0.00 0.00 0.00 59.0 0.0 0.0 0.00 0.00 0.00 0.00 60.0 0.0 0.0 0.00 0.00 0.00 0.00 61.0 0.0 0.0 0.00 0.00 0.00 0.00 62.0 0.0 0.0 0.00 0.00 0.00 0.00 63.0 0.0 0.0 0.00 0.00 0.00 0.00 64.0 0.0 0.0 0.00 0.00 0.00 0.00 PEAK FLOWS 3.2 3.2 0.9 0.00 indicates inital condition c 0 "'~ c > 0 .!! 11..W ft 331.1 331.4 331.6 331.7 331.9 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 331.9 331.9 331.9 331.9 331.9 331.8 331.8 331.8 331.8 331.8 331.7 331.7 331.7 331.6 331.6 331.6 331.5 331.5 331.5 331.4 331.3 331.3 331.2 331.1 331.1 331.1 331.1 331.1 331.1 331.1 331.1 331.1 332.0 0 w VJ ...10 c( II.. ~~ cfs 0.00 0.13 0.22 0.29 0.32 0.38 0.53 0.65 0.74 0.82 0.87 0.90 0.91 0.91 0.88 0.84 0.80 0.75 0.71 0.68 0.64 0.60 0.57 0.54 0.51 0.48 0.46 0.43 0.41 0.39 0.37 0.35 0.35 0.34 0.34 0.33 0.33 0.32 0.31 0.31 0.30 0.30 0.29 0.29 0.27 0.26 0.25 0.24 0.23 0.22 0.21 0.18 0.14 0.11 0.09 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.9 10000050-dra.xls Exhibit D-2 EXHIBIT "D-2" PROPOSED DETENTION POND 12 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 D.A. # D.A. # Pond Routing EVENT= 10 c -a. Q a ~ w c ~ z iii i a ~ 'r' 8 + i 'ti ! c :t .. Wl Ill .., N N a Qp 3.6 Tc 5.0 Inc 1.0 Time cfs cfs cfs cfs cfs cfs 0.0 0.0 0.0 0.72 0.00 0.00 0.00 1.0 0.7 0.7 2.15 0.45 0.72 0.13 2.0 1.4 1.4 3.59 2.14 2.60 0.23 3.0 2.2 2.2 5.03 5.15 5.73 0.29 4.0 2.9 2.9 6.46 9.51 10.17 0.33 5.0 3.6 3.6 6.82 15.11 15.97 0.43 6.0 3.2 3.2 6.10 20.75 21.93 0.59 7.0 2.9 2.9 5.39 25.40 26.85 0.73 8.0 2.5 2.5 4.67 29.13 30.79 0.83 9.0 2.2 2.2 3.95 31.97 33.79 0.91 10.0 1.8 1.8 3.23 33.98 35.92 0.97 11.0 1.4 1.4 2.51 35.20 37.21 1.00 12.0 1.1 1.1 1.80 35.68 37.71 1.02 13.0 0.7 0.7 1.08 35.45 37.47 1.01 14.0 0.4 0.4 0.36 34.55 36.53 0.99 15.0 0.0 0.0 0.00 33.03 34.91 0.94 16.0 0.0 0.0 0.00 31.24 33.03 0.89 17.0 0.0 0.0 0.00 29.56 31.24 0.84 18.0 0.0 0.0 0.00 27.96 29.56 0.80 19.0 0.0 0.0 0.00 26.45 27.96 0.76 20.0 0.0 0.0 0.00 25.02 26.45 0.71 21.0 0.0 0.0 0.00 23.67 25.02 0.68 22.0 0.0 0.0 0.00 22.39 23.67 0.64 23.0 0.0 0.0 0.00 21.18 22.39 0.60 24.0 0.0 0.0 0.00 20.04 21.18 0.57 25.0 0.0 0.0 0.00 18.96 20.04 0.54 26.0 0.0 0.0 0.00 17.93 18.96 0.51 27.0 0.0 0.0 0.00 16.96 17.93 0.48 28.0 0.0 0.0 0.00 16.05 16.96 0.46 29.0 0.0 0.0 0.00 15.18 16.05 0.43 30.0 0.0 0.0 0.00 14.36 15.18 0.41 31.0 0.0 0.0 0.00 13.59 14.36 0.39 32.0 0.0 0.0 0.00 12.85 13.59 0.37 33.0 0.0 0.0 0.00 12.14 12.85 0.35 34.0 0.0 0.0 0.00 11.45 12.14 0.35 35.0 0.0 0.0 0.00 10.76 11.45 0.34 36.0 0.0 0.0 0.00 10.09 10.76 0.34 37.0 0.0 0.0 0.00 9.43 10.09 0.33 38.0 0.0 0.0 0.00 8.78 9.43 0.33 39.0 0.0 0.0 0.00 8.14 8.78 0.32 40.0 0.0 0.0 0.00 7.51 8.14 0.31 41.0 0.0 0.0 0.00 6.89 7.51 0.31 42.0 0.0 0.0 0.00 6.28 6.89 0.30 43.0 0.0 0.0 0.00 5.68 6.28 0.30 44.0 0.0 0.0 0.00 5.10 5.68 0.29 45.0 0.0 0.0 0.00 4.52 5.10 0.29 46.0 0.0 0.0 0.00 3.97 4.52 0.27 47.0 0.0 0.0 0.00 3.44 3.97 0.26 48.0 0.0 0.0 0.00 2.95 3.44 0.25 49.0 0.0 0.0 0.00 2.47 2.95 0.24 50.0 0.0 0.0 0.00 2.02 2.47 0.23 51.0 0.0 0.0 0.00 1.59 2.02 0.22 52.0 0.0 0.0 0.00 1.18 1.59 0.21 53.0 0.0 0.0 0.00 0.81 1.18 0.18 54.0 0.0 0.0 0.00 0.52 0.81 0.14 55.0 0.0 0.0 0.00 0.29 0.52 0.11 56.0 0.0 0.0 0.00 0.11 0.29 0.09 57.0 0.0 0.0 0.00 0.00 0.11 0.07 58.0 0.0 0.0 0.00 0.00 0.00 0.00 59.0 0.0 0.0 0.00 0.00 0.00 0.00 60.0 0.0 0.0 0.00 0.00 0.00 0.00 61.0 0.0 0.0 0.00 0.00 0.00 0.00 62.0 0.0 0.0 0.00 0.00 0.00 0.00 63.0 0.0 0.0 0.00 0.00 0.00 0.00 64.0 0.0 0.0 0.00 0.00 0.00 0.00 PEAK FLOWS 3.6 3.6 1.0 0. 00 indicates in Ital condition c 0 "O ii c > 0 .!! 11..W ft 331.1 331.4 331.6 331.8 331.9 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 331.9 331.9 331.9 331.9 331.9 331.8 331.8 331.8 331.8 331.8 331.7 331.7 331.7 331.6 331.6 331.6 331.5 331.5 331.5 331.4 331.3 331.3 331.2 331.1 331.1 331.1 331.1 331.1 331.1 331.1 332.0 Q w Ill ..JO ~~ ~ IE cfs 0.00 0.13 0.23 0.29 0.33 0.43 0.59 0.73 0.83 0.91 0.97 1.00 1.02 1.01 0.99 0.94 0.89 0.84 0.80 0.76 0.71 0.68 0.64 0.60 0.57 0.54 0.51 0.48 0.46 0.43 0.41 0.39 0.37 0.35 0.35 0.34 0.34 0.33 0.33 0.32 0.31 0.31 0.30 0.30 0.29 0.29 0.27 0.26 0.25 0.24 0.23 0.22 0.21 0.18 0.14 0.11 0.09 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.0 10000050-dra.xls Exhibit 0-2 EXHIBIT "D-2" PROPOSED DETENTION POND 12 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 D.A. # D.A. # Pond Routing EVENT= 25 c .c c i a. w I? c ~ z ..... i iii + + :Ii: c i 'ti ! c ~ .. 8 w (/) .., N N a Qp 4.1 Tc 5.0 Inc 1.0 Time cfs cfs cfs cfs cfs cfs 0.0 0.0 0.0 0.82 0.00 0.00 0.00 1.0 0.8 0.8 2.45 0.53 0.82 0.15 2.0 1.6 1.6 4.09 2.50 2.98 0.24 3.0 2.5 2.5 5.73 5.99 6.59 0.30 4.0 3.3 3.3 7.36 11.03 11.72 0.34 5.0 4.1 4.1 7.77 17.39 18.39 0.50 6.0 3.7 3.7 6.95 23.80 25.16 0.68 7.0 3.3 3.3 6.13 29.10 30.76 0.83 8.0 2.9 2.9 5.32 33.33 35.23 0.95 9.0 2.5 2.5 4.50 36.56 38.64 1.04 10.0 2.0 2.0 3.68 38.84 41.05 1.11 11.0 1.6 1.6 2.86 40.22 42.52 1.15 12.0 1.2 1.2 2.04 40.76 43.08 1.16 13.0 0.8 0.8 1.23 40.49 42.80 1.16 14.0 0.4 0.4 0.41 39.46 41.72 1.13 15.0 0.0 0.0 0.00 37.72 39.87 1.08 16.0 0.0 0.0 0.00 35.68 37.72 1.02 17.0 0.0 0.0 0.00 33.76 35.68 0.96 18.0 0.0 0.0 0.00 31.93 33.76 0.91 19.0 0.0 0.0 0.00 30.21 31.93 0.86 20.0 0.0 0.0 0.00 28.58 30.21 0.82 21.0 0.0 0.0 0.00 27.03 28.58 0.77 22.0 0.0 0.0 0.00 25.57 27.03 0.73 23.0 0.0 0.0 0.00 24.19 25.57 0.69 24.0 0.0 0.0 0.00 22.89 24.19 0.65 25.0 0.0 0.0 0.00 21.65 22.89 0.62 26.0 0.0 0.0 0.00 20.48 21.65 0.58 27.0 0.0 0.0 0.00 19.37 20.48 0.55 28.0 0.0 0.0 0.00 18.33 19.37 0.52 29.0 0.0 0.0 0.00 17.34 18.33 0.49 30.0 0.0 0.0 0.00 16.40 17.34 0.47 31.0 0.0 0.0 0.00 15.52 16.40 0.44 32.0 0.0 0.0 0.00 14.68 15.52 0.42 33.0 0.0 0.0 0.00 13.88 14.68 0.40 34.0 0.0 0.0 0.00 13.14 13.88 0.37 35.0 0.0 0.0 0.00 12.42 13.14 0.36 36.0 0.0 0.0 0.00 11.72 12.42 0.35 37.0 0.0 0.0 0.00 11.03 11.72 0.34 38.0 0.0 0.0 0.00 10.35 11.03 0.34 39.0 0.0 0.0 0.00 9.69 10.35 0.33 40.0 0.0 0.0 0.00 9.03 9.69 0.33 41.0 0.0 0.0 0.00 8.39 9.03 0.32 42.0 0.0 0.0 0.00 7.76 8.39 0.32 43.0 0.0 0.0 0.00 7.13 7.76 0.31 44.0 0.0 0.0 0.00 6.52 7.13 0.31 45.0 0.0 0.0 0.00 5.92 6.52 0.30 46.0 0.0 0.0 0.00 5.33 5.92 0.30 47.0 0.0 0.0 0.00 4.75 5.33 0.29 48.0 0.0 0.0 0.00 4.18 4.75 0.28 49.0 0.0 0.0 0.00 3.65 4.18 0.27 50.0 0.0 0.0 0.00 3.14 3.65 0.25 51.0 0.0 0.0 0.00 2.66 3.14 0.24 52.0 0.0 0.0 0.00 2.20 2.66 0.23 53.0 0.0 0.0 0.00 1.76 2.20 0.22 54.0 0.0 0.0 0.00 1.34 1.76 0.21 55.0 0.0 0.0 0.00 0.94 1.34 0.20 56.0 0.0 0.0 0.00 0.62 0.94 0.16 57.0 0.0 0.0 0.00 0.37 0.62 0.12 58.0 0.0 0.0 0.00 0.18 0.37 0.10 59.0 0.0 0.0 0.00 0.02 0.18 0.08 60.0 0.0 0.0 0.00 0.00 0.02 0.01 61.0 0.0 0.0 0.00 0.00 0.00 0.00 62.0 0.0 0.0 0.00 0.00 0.00 0.00 63.0 0.0 0.0 0.00 0.00 0.00 0.00 64.0 0.0 0.0 0.00 0.00 0.00 0.00 PEAK FLOWS 4.1 4.1 1.2 0.00 indicates inltal condition c .2 'ti ... c > 0 .!! IL W ft 331.1 331.4 331.6 331.8 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 331.9 331.9 331.9 331.9 331.9 331.8 331.8 331.8 331.8 331.8 331.7 331.7 331.7 331.6 331.6 331.6 331.5 331.5 331.4 331.4 331.3 331.3 331.1 331.1 331.1 331.1 331.1 332.0 c w (/) ...J 0 ~~ !=! IE cfs 0.00 0.15 0.24 0.30 0.34 0.50 0.68 0.83 0.95 1.04 1.11 1.15 1.16 1.16 1.13 1.08 1.02 0.96 0.91 0.86 0.82 0.77 0.73 0.69 0.65 0.62 0.58 0.55 0.52 0.49 0.47 0.44 0.42 0.40 0.37 0.36 0.35 0.34 0.34 0.33 0.33 0.32 0.32 0.31 0.31 0.30 0.30 0.29 0.28 0.27 0.25 0.24 0.23 0.22 0.21 0.20 0.16 0.12 0.10 0.08 0.01 0.00 0.00 0.00 0.00 1.2 10000050-dra.xls Exhibit D-2 EXHIBIT "D-2" PROPOSED DETENTION POND 12 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 D.A. # D.A. # Pond Routing EVENT= 50 c .c c a 0. w ~ l! z c ~ ii5 i a 8 ~ + i ~-~ c in rn .., N N a Qp 4.6 Tc 5.0 Inc 1.0 Time cfs cfs cfs cfs cfs cfs 0.0 0.0 0.0 0.92 0.00 0.00 0.00 1.0 0.9 0.9 2.77 0.61 0.92 0.16 2.0 1.8 1.8 4.61 2.88 3.37 0.25 3.0 2.8 2.8 6.45 6.87 7.49 0.31 4.0 3.7 3.7 8.30 12.60 13.32 0.36 5.0 4.6 4.6 8.76 19.77 20.90 0.56 6.0 4.1 4.1 7.84 26.99 28.53 0.77 7.0 3.7 3.7 6.91 32.95 34.83 0.94 8.0 3.2 3.2 5.99 37.71 39.86 1.08 9.0 2.8 2.8 5.07 41.34 43.70 1.18 10.0 2.3 2.3 4.15 43.90 46.41 1.25 11.0 1.8 1.8 3.23 45.46 48.05 1.30 12.0 1.4 1.4 2.30 46.06 48.68 1.31 13.0 0.9 0.9 1.38 45.75 48.36 1.31 14.0 0.5 0.5 0.46 44.59 47.13 1.27 15.0 0.0 0.0 0.00 42.61 45.05 1.22 16.0 0.0 0.0 0.00 40.31 42.61 1.15 17.0 0.0 0.0 0.00 38.14 40.31 1.09 18.0 0.0 0.0 0.00 36.08 38.14 1.03 19.0 0.0 0.0 0.00 34.13 36.08 0.97 20.0 0.0 0.0 0.00 32.28 34.13 0.92 21.0 0.0 0.0 0.00 30.54 32.28 0.87 22.0 0.0 0.0 0.00 28.89 30.54 0.82 23.0 0.0 0.0 0.00 27.33 28.89 0.78 24.0 0.0 0.0 0.00 25.85 27.33 0.74 25.0 0.0 0.0 0.00 24.46 25.85 0.70 26.0 0.0 0.0 0.00 23.14 24.46 0.66 27.0 0.0 0.0 0.00 21.89 23.14 0.62 28.0 0.0 0.0 0.00 20.71 21.89 0.59 29.0 0.0 0.0 0.00 19.59 20.71 0.56 30.0 0.0 0.0 0.00 18.53 19.59 0.53 31.0 0.0 0.0 0.00 17.53 18.53 0.50 32.0 0.0 0.0 0.00 16.58 17.53 0.47 33.0 0.0 0.0 0.00 15.69 16.58 0.45 34.0 0.0 0.0 0.00 14.84 15.69 0.42 35.0 0.0 0.0 0.00 14.04 14.84 0.40 36.0 0.0 0.0 0.00 13.28 14.04 0.38 37.0 0.0 0.0 0.00 12.56 13.28 0.36 38.0 0.0 0.0 0.00 11.86 12.56 0.35 39.0 0.0 0.0 0.00 11.17 11.86 0.35 40.0 0.0 0.0 0.00 10.49 11.17 0.34 41.0 0.0 0.0 0.00 9.82 10.49 0.33 42.0 0.0 0.0 0.00 9.16 9.82 0.33 43.0 0.0 0.0 0.00 8.52 9.16 0.32 44.0 0.0 0.0 0.00 7.88 8.52 0.32 45.0 0.0 0.0 0.00 7.26 7.88 0.31 46.0 0.0 0.0 0.00 6.64 7.26 0.31 47.0 0.0 0.0 0.00 6.04 6.64 0.30 48.0 0.0 0.0 0.00 5.44 6.04 0.30 49.0 0.0 0.0 0.00 4.86 5.44 0.29 50.0 0.0 0.0 0.00 4.29 4.86 0.28 51.0 0.0 0.0 0.00 3.75 4.29 0.27 52.0 0.0 0.0 0.00 3.24 3.75 0.26 53.0 0.0 0.0 0.00 2.75 3.24 0.24 54.0 0.0 0.0 0.00 2.29 2.75 0.23 55.0 0.0 0.0 0.00 1.84 2.29 0.22 56.0 0.0 0.0 0.00 1.42 1.84 0.21 57.0 0.0 0.0 0.00 1.02 1.42 0.20 58.0 0.0 0.0 0.00 0.68 1.02 0.17 59.0 0.0 0.0 0.00 0.42 0.68 0.13 60.0 0.0 0.0 0.00 0.21 0.42 0.10 61.0 0.0 0.0 0.00 0.05 0.21 0.08 62.0 0.0 0.0 0.00 0.00 0.05 0.03 63.0 0.0 0.0 0.00 0.00 0.00 0.00 64.0 0.0 0.0 0.00 0.00 0.00 0.00 PEAK FLOWS 4.6 4.6 1.3 0. 00 indicates in~al condition c 0 ;: gj 11.W ft 331.1 331.4 331.6 331.8 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 331.9 331.9 331.9 331.9 331.9 331.8 331.8 331.8 331.8 331.8 331.7 331.7 331.7 331.6 331.6 331.6 331.5 331.5 331.4 331.4 331.3 331.3 331.2 331.1 331.1 332.0 c w rn ...J 0 ~~ Oii: I-II. Cfs 0.00 0.16 0.25 0.31 0.36 0.56 0.77 0.94 1.08 1.18 1.25 1.30 1.31 1.31 1.27 1.22 1.15 1.09 1.03 0.97 0.92 0.87 0.82 0.78 0.74 0.70 0.66 0.62 0.59 0.56 0.53 0.50 0.47 0.45 0.42 0.40 0.38 0.36 0.35 0.35 0.34 0.33 0.33 0.32 0.32 0.31 0.31 0.30 0.30 0.29 0.28 0.27 0.26 0.24 0.23 0.22 0.21 0.20 0.17 0.13 0.10 0.08 0.03 0.00 0.00 1.3 10000050-<lra.xls Exhibtt D-2 EXHIBIT "D-2" PROPOSED DETENTION POND 12 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 D.A. # D.A.# Pond Routlna EVENT= 100 c .c 0 a a. I? w c ~ z ~ iii t a ~ + ..... "O :E 1 c + ~-8 "' "' c .., N N a Qp 5.2 Tc 5.0 Inc 1.0 Time cfs c:fs cfs cfs cfs c:fs 0.0 0.0 0.0 1.03 0.00 0.00 0.00 1.0 1.0 1.0 3.10 0.69 1.03 0.17 2.0 2.1 2.1 5.16 3.26 3.79 0.26 3.0 3.1 3.1 7.22 7.60 6.44 0.32 4.0 4.1 4.1 9.29 14.21 15.03 0.41 5.0 5.2 5.2 9.60 22.23 23.50 0.63 6.0 4.6 4.6 6.77 30.31 32.04 0.67 7.0 4.1 4.1 7.74 36.97 39.06 1.06 8.0 3.6 3.6 6.71 42.29 44.71 1.21 9.0 3.1 3.1 5.68 46.36 49.00 1.32 10.0 2.6 2.6 4.64 49.22 52.03 1.41 11.0 2.1 2.1 3.61 50.96 53.87 1.45 12.0 1.5 1.5 2.58 51.62 54.57 1.47 13.0 1.0 1.0 1.55 51.28 54.20 1.46 14.0 0.5 0.5 0.52 49.97 52.82 1.43 15.0 0.0 0.0 0.00 47.76 50.49 1.36 16.0 0.0 0.0 0.00 45.18 47.76 1.29 17.0 0.0 0.0 0.00 42.74 45.18 1.22 18.0 0.0 0.0 0.00 40.43 42.74 1.15 19.0 0.0 0.0 0.00 38.25 40.43 1.09 20.0 0.0 0.0 0.00 36.18 38.25 1.03 21.0 0.0 0.0 0.00 34.23 36.18 0.98 22.0 0.0 0.0 0.00 32.38 34.23 0.92 23.0 0.0 0.0 0.00 30.63 32.38 0.87 24.0 0.0 0.0 0.00 28.96 30.63 0.63 25.0 0.0 0.0 0.00 27.41 26.96 0.76 26.0 0.0 0.0 0.00 25.93 27.41 0.74 27.0 0.0 0.0 0.00 24.53 25.93 0.70 26.0 0.0 0.0 0.00 23.21 24.53 0.66 29.0 0.0 0.0 0.00 21.95 23.21 0.63 30.0 0.0 0.0 0.00 20.77 21.95 0.59 31.0 0.0 0.0 0.00 19.65 20.77 0.56 32.0 0.0 0.0 0.00 18.56 19.65 0.53 33.0 0.0 0.0 0.00 17.56 16.56 0.50 34.0 0.0 0.0 0.00 16.63 17.56 0.47 35.0 0.0 0.0 0.00 15.73 16.63 0.45 36.0 0.0 0.0 0.00 14.66 15.73 0.42 37.0 0.0 0.0 0.00 14.06 14.66 0.40 36.0 0.0 0.0 0.00 13.32 14.06 0.36 39.0 0.0 0.0 0.00 12.60 13.32 0.36 40.0 0.0 0.0 0.00 11.90 12.60 0.35 41.0 0.0 0.0 0.00 11.20 11.90 0.35 42.0 0.0 0.0 0.00 10.52 11.20 0.34 43.0 0.0 0.0 0.00 9.65 10.52 0.33 44.0 0.0 0.0 0.00 9.20 9.65 0.33 45.0 0.0 0.0 0.00 6.55 9.20 0.32 46.0 0.0 0.0 0.00 7.91 6.55 0.32 47.0 0.0 0.0 0.00 7.29 7.91 0.31 46.0 0.0 0.0 0.00 6.67 7.29 0.31 49.0 0.0 0.0 0.00 6.07 6.67 0.30 50.0 0.0 0.0 0.00 5.47 6.07 0.30 51.0 0.0 0.0 0.00 4.89 5.47 0.29 52.0 0.0 0.0 0.00 4.32 4.69 0.28 53.0 0.0 0.0 0.00 3.76 4.32 0.27 54.0 0.0 0.0 0.00 3.27 3.76 0.26 55.0 0.0 0.0 0.00 2.76 3.27 0.25 56.0 0.0 0.0 0.00 2.31 2.76 0.23 57.0 0.0 0.0 0.00 1.87 2.31 0.22 58.0 0.0 0.0 0.00 1.44 1.87 0.21 59.0 0.0 0.0 0.00 1.04 1.44 0.20 60.0 0.0 0.0 0.00 0.70 1.04 0.17 61.0 0.0 0.0 0.00 0.43 0.70 0.13 62.0 0.0 0.0 0.00 0.22 0.43 0.10 63.0 0.0 0.0 0.00 0.06 0.22 0.08 64.0 0.0 0.0 0.00 0.00 0.06 0.04 PEAK FLOWS 5.2 5.2 1.5 0.00 indicates inijal condijion c 0 'O ~ c > 0 .!! IL W ft 331.1 331.4 331.7 331.9 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 332.0 331.9 331.9 331.9 331.9 331.9 331.8 331.8 331.6 331.6 331.8 331.7 331.7 331.7 331.6 331.6 331.6 331.5 331.5 331.4 331.4 331.3 331.3 331.2 332.0 0 w "' -l 0 :: ~ ~f c:fs 0.00 0.17 0.26 0.32 0.41 0.63 0.67 1.06 1.21 1.32 1.41 1.45 1.47 1.46 1.43 1.36 1.29 1.22 1.15 1.09 1.03 0.98 0.92 0.87 0.63 0.76 0.74 0.70 0.66 0.63 0.59 0.56 0.53 0.50 0.47 0.45 0.42 0.40 0.36 0.36 0.35 0.35 0.34 0.33 0.33 0.32 0.32 0.31 0.31 0.30 0.30 0.29 0.26 0.27 0.26 0.25 0.23 0.22 0.21 0.20 0.17 0.13 0.10 0.08 0.04 1.5 10000050-<lra.xls Exhibit D-2 EXHIBIT "D-3" PROPOSED DETENTION POND 13 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 D.A.# D.A.# D.A.# D.A.# Pond Routing EVENT= 5 c -&. 0 a w i l! z c ~ ... N iii t a ,, ,, ::E ~ t t ,, c 8 t :t .. 0 8 ~ t/) .... IL IL N N a QD 1.8 Tc 5.0 Inc 1.0 1.0 1.0 Time cfs cfs cfs cfs cfs cfs cfs 0.0 0.0 0.0 0.0 0.0 0.51 0.00 0.00 0.00 1.0 0.4 0.0 0.1 0.5 1.52 0.00 0.51 0.30 2.0 0.7 0.1 0.2 1.0 2.52 0.40 1.52 0.56 3.0 1.1 0.2 0.3 1.5 3.42 1.31 2.92 0.80 4.0 1.4 0.2 0.3 1.9 4.27 2.49 4.73 1.12 5.0 1.8 0.2 0.4 2.4 4.71 3.81 6.76 1.47 6.0 1.6 0.2 0.5 2.4 4.67 5.10 8.52 1.71 7.0 1.4 0.3 0.6 2.3 4.57 6.13 9.77 1.82 8.0 1.2 0.3 0.7 2.2 4.40 6.90 10.70 1.90 9.0 1.1 0.3 0.8 2.2 4.19 7.39 11.30 1.96 10.0 0.9 0.3 0.9 2.0 3.93 7.61 11.57 1.98 11.0 0.7 0.3 0.9 1.9 3.62 7.59 11.54 1.98 12.0 0.5 0.3 0.9 1.7 3.28 7.32 11.21 1.95 13.0 0.4 0.3 0.9 1.6 2.90 6.81 10.60 1.89 14.0 0.2 0.3 0.9 1.4 2.49 6.09 9.71 1.81 15.0 0.0 0.3 0.8 1.1 2.22 5.14 8.57 1.71 16.0 0.0 0.3 0.8 1.1 2.12 4.20 7.36 1.58 17.0 0.0 0.3 0.8 1.0 2.03 3.53 6.33 1.40 18.0 0.0 0.3 0.7 1.0 1.94 3.03 5.56 1.27 19.0 0.0 0.3 0.7 1.0 1.86 2.65 4.98 1.16 20.0 0.0 0.3 0.6 0.9 1.78 2.35 4.51 1.08 21.0 0.0 0.3 0.6 0.9 1.71 2.10 4.13 1.02 22.0 0.0 0.3 0.6 0.8 1.63 1.89 3.81 0.96 23.0 0.0 0.3 0.5 0.8 1.55 1.70 3.52 0.91 24.0 0.0 0.2 0.5 0.8 1.48 1.53 3.25 0.86 25.0 0.0 0.2 0.5 0.7 1.41 1.37 3.01 0.82 26.0 0.0 0.2 0.5 0.7 1.34 1.22 2.78 0.78 27.0 0.0 0.2 0.4 0.7 1.28 1.08 2.56 0.74 28.0 0.0 0.2 0.4 0.6 1.22 0.94 2.36 0.71 29.0 0.0 0.2 0.4 0.6 1.17 0.82 2.17 0.67 30.0 0.0 0.2 0.4 0.6 1.12 0.70 1.98 0.64 31.0 0.0 0.2 0.4 0.5 1.09 0.59 1.82 0.61 32.0 0.0 0.2 0.3 0.5 1.06 0.50 1.68 0.59 33.0 0.0 0.2 0.3 0.5 1.04 0.43 1.56 0.57 34.0 0.0 0.2 0.3 0.5 1.02 0.36 1.46 0.55 35.0 0.0 0.2 0.3 0.5 0.99 0.30 1.38 0.54 36.0 0.0 0.2 0.3 0.5 0.95 0.25 1.30 0.52 37.0 0.0 0.1 0.3 0.5 0.90 0.19 1.21 0.51 38.0 0.0 0.1 0.3 0.4 0.85 0.12 1.09 0.49 39.0 0.0 0.1 0.3 0.4 0.80 0.04 0.97 0.46 40.0 0.0 0.1 0.3 0.4 0.76 0.00 0.84 0.44 41.0 0.0 0.1 0.3 0.4 0.72 0.00 0.76 0.43 42.0 0.0 0.1 0.3 0.4 0.69 0.00 0.72 0.42 43.0 0.0 0.1 0.3 0.3 0.66 0.00 0.69 0.41 44.0 0.0 0.0 0.3 0.3 0.61 0.00 0.66 0.39 45.0 0.0 0.0 0.3 0.3 0.58 0.00 0.61 0.36 46.0 0.0 0.0 0.2 0.3 0.54 0.00 0.58 0.34 47.0 0.0 0.0 0.2 0.3 0.49 0.00 0.54 0.32 48.0 0.0 0.0 0.2 0.2 0.44 0.00 0.49 0.29 49.0 0.0 0.0 0.2 0.2 0.42 0.00 0.44 0.26 50.0 0.0 0.0 0.2 0.2 0.39 0.00 0.42 0.25 51.0 0.0 0.0 0.2 0.2 0.33 0.00 0.39 0.23 52.0 0.0 0.0 0.1 0.1 0.26 0.00 0.33 0.19 53.0 0.0 0.0 0.1 0.1 0.20 0.00 0.26 0.15 54.0 0.0 0.0 0.1 0.1 0.16 0.00 0.20 0.12 55.0 0.0 0.0 0.1 0.1 0.07 0.00 0.16 0.09 56.0 0.0 0.0 0.0 0.0 0.00 0.00 0.07 0.04 57.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 58.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 59.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 60.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 61.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 62.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 63.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 64.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 PEAK FLOWS 1.8 0.3 0.9 2.4 2.0 0.00 indicates inital condition 0 c w 0 t/) 'ti~ ..J 0 ~~ c > 0 .!! ~ IE IL W ft cfs 330.8 0.00 331.0 0.30 331.0 0.56 331.1 0.80 331.1 1.12 331.2 1.47 331.3 1.71 331.3 1.82 331.3 1.90 331.3 1.96 331.3 1.98 331.3 1.98 331.3 1.95 331.3 1.89 331.3 1.81 331.3 1.71 331.2 1.58 331.2 1.40 331.2 1.27 331.2 1.16 331.1 1.08 331.1 1.02 331.1 0.96 331.1 0.91 331.1 0.86 331.1 0.82 331.1 0.78 331.1 0.74 331.1 0.71 331.1 0.67 331.0 0.64 331.0 0.61 331.0 0.59 331.0 0.57 331.0 0.55 331.0 0.54 331.0 0.52 331.0 0.51 331.0 0.49 331.0 0.46 331.0 0.44 331.0 0.43 331.0 0.42 331.0 0.41 331.0 0.39 331.0 0.36 331.0 0.34 331.0 0.32 330.9 0.29 330.9 0.26 330.9 0.25 330.9 0.23 330.9 0.19 330.9 0.15 330.9 0.12 330.9 0.09 330.8 0.04 330.8 0.00 330.8 0.00 330.8 0.00 330.8 0.00 330.8 0.00 330.8 0.00 330.8 0.00 330.8 0.00 331.30 2.0 D.A.# 0 z ..J I= ~ !! N )( ~ti w 2.9 5.6 els cfs 0.0 0.00 0.5 0.52 1.0 1.04 1.6 1.57 2.1 2.09 2.6 2.61 2.8 2.79 2.5 2.52 2.3 2.26 2.0 2.00 1.7 1.74 1.5 1.48 1.2 1.22 1.0 0.96 0.7 0.70 0.4 0.44 0.2 0.18 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 2.8 2.8 10000050-dra.xls Exhibit 0-3 EXHIBIT "D-3" PROPOSED DETENTION POND #3 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 D.A.# D.A.# D.A.# D.A.# Pond Routlna EVENT= 10 c ~ a 0 c. w ~ ~ z c ~ ... N iii t 0 ~ ,, :E ~ t t ,, c t :t .. 0 0 8 i; Ill ... a.. a.. N N 0 QD 2.0 Tc 5.0 Inc 1.0 1.0 1.0 Time cfs cfs cfs cfs cfs cfs cfs 0.0 0.0 0.0 0.0 0.0 0.56 0.00 0.00 0.00 1.0 0.4 0.0 0.1 0.6 1.67 0.00 0.56 0.33 2.0 0.8 0.1 0.2 1.1 2.74 0.50 1.67 0.59 3.0 1.2 0.2 0.3 1.6 3.73 1.52 3.24 0.86 4.0 1.6 0.2 0.3 2.1 4.70 2.82 5.24 1.21 5.0 2.0 0.2 0.4 2.6 5.23 4.31 7.53 1.61 6.0 1.8 0.3 0.6 2.6 5.18 5.94 9.54 1.80 7.0 1.6 0.3 0.7 2.6 5.05 7.24 11.12 1.94 8.0 1.4 0.3 0.8 2.5 4.87 8.21 12.30 2.04 9.0 1.2 0.3 0.9 2.4 4.63 8.85 13.07 2.11 10.0 1.0 0.3 1.0 2.2 4.34 9.18 13.47 2.15 11.0 0.8 0.3 1.0 2.1 4.00 9.21 13.51 2.15 12.0 0.6 0.3 1.0 1.9 3.62 8.96 13.21 2.13 13.0 0.4 0.3 1.0 1.7 3.20 8.44 12.58 2.07 14.0 0.2 0.3 1.0 1.5 2.73 7.67 11.64 1.99 15.0 0.0 0.3 0.9 1.2 2.44 6.65 10.40 1.88 16.0 0.0 0.3 0.9 1.2 2.33 5.57 9.09 1.76 17.0 0.0 0.3 0.8 1.1 2.23 4.59 7.90 1.65 18.0 0.0 0.3 0.8 1.1 2.13 3.85 6.82 1.48 19.0 0.0 0.3 0.8 1.0 2.04 3.30 5.98 1.34 20.0 0.0 0.3 0.7 1.0 1.95 2.89 5.34 1.23 21.0 0.0 0.3 0.7 1.0 1.87 2.56 4.84 1.14 22.0 0.0 0.3 0.6 0.9 1.79 2.29 4.43 1.07 23.0 0.0 0.3 0.6 0.9 1.72 2.07 4.09 1.01 24.0 0.0 0.3 0.6 0.8 1.65 1.88 3.79 0.96 25.0 0.0 0.3 0.5 0.8 1.57 1.70 3.52 0.91 26.0 0.0 0.3 0.5 0.8 1.50 1.54 3.27 0.87 27.0 0.0 0.2 0.5 0.7 1.43 1.39 3.04 0.83 28.0 0.0 0.2 0.5 0.7 1.36 1.24 2.81 0.79 29.0 0.0 0.2 0.4 0.7 1.30 1.10 2.60 0.75 30.0 0.0 0.2 0.4 0.6 1.24 0.97 2.40 0.71 31.0 0.0 0.2 0.4 0.6 1.18 0.85 2.21 0.68 32.0 0.0 0.2 0.4 0.6 1.13 0.73 2.03 0.65 33.0 0.0 0.2 0.4 0.6 1.10 0.62 1.86 0.62 34.0 0.0 0.2 0.3 0.5 1.08 0.53 1.72 0.60 35.0 0.0 0.2 0.3 0.5 1.05 0.45 1.60 0.58 36.0 0.0 0.2 0.3 0.5 1.03 0.39 1.50 0.56 37.0 0.0 0.2 0.3 0.5 1.01 0.33 1.42 0.54 38.0 0.0 0.2 0.3 0.5 0.98 0.28 1.34 0.53 39.0 0.0 0.2 0.3 0.5 0.95 0.23 1.26 0.52 40.0 0.0 0.1 0.3 0.5 0.89 0.17 1.18 0.50 41.0 0.0 0.1 0.3 0.4 0.84 0.10 1.07 0.48 42.0 0.0 0.1 0.3 0.4 0.79 0.02 0.94 0.46 43.0 0.0 0.1 0.3 0.4 0.75 0.00 0.81 0.44 44.0 0.0 0.1 0.3 0.4 0.72 0.00 0.75 0.43 45.0 0.0 0.1 0.3 0.3 0.68 0.00 0.72 0.42 46.0 0.0 0.1 0.3 0.3 0.63 0.00 0.68 0.40 47.0 0.0 0.0 0.3 0.3 0.59 0.00 0.63 0.37 48.0 0.0 0.0 0.2 0.3 0.55 0.00 0.59 0.35 49.0 0.0 0.0 0.2 0.3 0.52 0.00 0.55 0.33 50.0 0.0 0.0 0.2 0.3 0.47 0.00 0.52 0.31 51.0 0.0 0.0 0.2 0.2 0.42 0.00 0.47 0.28 52.0 0.0 0.0 0.2 0.2 0.39 0.00 0.42 0.25 53.0 0.0 0.0 0.2 0.2 0.33 0.00 0.39 0.23 54.0 0.0 0.0 0.1 0.1 0.26 0.00 0.33 0.19 55.0 0.0 0.0 0.1 0.1 0.20 0.00 0.26 0.15 56.0 0.0 0.0 0.1 0.1 0.16 0.00 0.20 0.12 57.0 0.0 0.0 0.1 0.1 0.07 0.00 0.16 0.09 58.0 0.0 0.0 0.0 0.0 0.00 0.00 0.07 0.04 59.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 60.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 61.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 62.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 63.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 64.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 PEAK FLOWS 2.0 0.3 1.0 2.6 2.2 o.oo indicates inttal condition a c w 0 Ill ~~ _,o :: ~ c > 0 .!! f2f a..w ft cfs 330.8 0.00 331.0 0.33 331.0 0.59 331.1 0.86 331.2 1.21 331.2 1.61 331.3 1.80 331.3 1.94 331.3 2.04 331.3 2.11 331.3 2.15 331.3 2.15 331.3 2.13 331.3 2.07 331.3 1.99 331.3 1.88 331.3 1.76 331.3 1.65 331.2 1.48 331.2 1.34 331.2 1.23 331.1 1.14 331.1 1.07 331.1 1.01 331.1 0.96 331.1 0.91 331.1 0.87 331.1 0.83 331.1 0.79 331.1 0.75 331.1 0.71 331.1 0.68 331.0 0.65 331.0 0.62 331.0 0.60 331.0 0.58 331.0 0.56 331.0 0.54 331.0 0.53 331.0 0.52 331.0 0.50 331.0 0.48 331.0 0.46 331.0 0.44 331.0 0.43 331.0 0.42 331.0 0.40 331.0 0.37 331.0 0.35 331.0 0.33 331.0 0.31 330.9 0.28 330.9 0.25 330.9 0.23 330.9 0.19 330.9 0.15 330.9 0.12 330.9 0.09 330.8 0.04 330.8 0.00 330.8 0.00 330.8 0.00 330.8 0.00 330.8 0.00 330.8 0.00 331.33 2.2 D.A. # Cl z ..J I= :: !! N )( f2 t'.i w 3.2 5.6 els els 0.0 0.00 0.6 0.58 1.2 1.16 1.7 1.75 2.3 2.33 2.9 2.91 3.1 3.11 2.8 2.82 2.5 2.53 2.2 2.23 1.9 1.94 1.7 1.65 1.4 1.36 1.1 1.07 0.8 0.78 0.5 0.49 0.2 0.20 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 3.1 3.1 10000050-dra.xls Extiibtt D-3 EXHIBIT "D-3" PROPOSED DETENTION POND #3 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 D.A. # D.A.# D.A.# D.A.# Pond Routing EVENT= 25 c -a. 0 a w i !! z c ~ ..... N ii5 t a "" -g 8 ~ t t "" § ! ;t .. 0 Cl) .. IL IL N N a Qp 2.2 Tc 5.0 Inc 1.0 1.0 1.0 Time Cfs cfs cfs cfs cfs cfs cfs 0.0 0.0 0.0 0.0 0.0 0.63 0.00 0.00 0.00 1.0 0.4 0.0 0.1 0.6 1.87 0.00 0.63 0.37 2.0 0.9 0.1 0.2 1.2 3.05 0.62 1.87 0.62 3.0 1.3 0.2 0.3 1.8 4.14 1.80 3.67 0.94 4.0 1.8 0.2 0.3 2.3 5.29 3.28 5.94 1.33 5.0 2.2 0.2 0.5 3.0 5.92 5.15 8.57 1.71 6.0 2.0 0.3 0.7 3.0 5.85 7.20 11.07 1.93 7.0 1.8 0.3 0.8 2.9 5.71 8.83 13.05 2.11 8.0 1.6 0.3 1.0 2.8 5.49 10.05 14.54 2.24 9.0 1.3 0.3 1.0 2.7 5.22 10.88 15.54 2.33 10.0 1.1 0.3 1.1 2.5 4.89 11.34 16.10 2.38 11.0 0.9 0.3 1.1 2.4 4.51 11.44 16.23 2.39 12.0 0.7 0.3 1.2 2.2 4.08 11.22 15.95 2.37 13.0 0.4 0.3 1.2 1.9 3.59 10.67 15.29 2.31 14.0 0.2 0.3 1.1 1.7 3.07 9.83 14.27 2.22 15.0 0.0 0.3 1.1 1.4 2.73 8.70 12.89 2.10 16.0 0.0 0.3 1.0 1.3 2.61 7.49 11.43 1.97 17.0 0.0 0.3 1.0 1.3 2.49 6.40 10.10 1.85 18.0 0.0 0.3 0.9 1.2 2.38 5.41 8.90 1.74 19.0 0.0 0.3 0.9 1.2 2.28 4.51 7.79 1.64 20.0 0.0 0.3 0.8 1.1 2.18 3.83 6.79 1.48 21.0 0.0 0.3 0.8 1.1 2.09 3.32 6.01 1.34 22.0 0.0 0.3 0.7 1.0 2.00 2.93 5.41 1.24 23.0 0.0 0.3 0.7 1.0 1.91 2.62 4.93 1.16 24.0 0.0 0.3 0.7 0.9 1.83 2.36 4.53 1.09 25.0 0.0 0.3 0.6 0.9 1.76 2.14 4.20 1.03 26.0 0.0 0.3 0.6 0.9 1.69 1.95 3.90 0.98 27.0 0.0 0.3 0.6 0.8 1.62 1.78 3.63 0.93 28.0 0.0 0.3 0.5 0.8 1.55 1.62 3.39 0.89 29.0 0.0 0.3 0.5 0.8 1.48 1.47 3.17 0.85 30.0 0.0 0.3 0.5 0.7 1.41 1.33 2.95 0.81 31.0 0.0 0.2 0.4 0.7 1.35 1.20 2.74 0.77 32.0 0.0 0.2 0.4 0.7 1.29 1.06 2.54 0.74 33.0 0.0 0.2 0.4 0.6 1.23 0.94 2.35 0.71 34.0 0.0 0.2 0.4 0.6 1.17 0.82 2.16 0.67 35.0 0.0 0.2 0.4 0.6 1.13 0.70 1.99 0.64 36.0 0.0 0.2 0.4 0.6 1.11 0.60 1.84 0.62 37.0 0.0 0.2 0.3 0.5 1.08 0.52 1.71 0.59 38.0 0.0 0.2 0.3 0.5 1.06 0.45 1.60 0.58 39.0 0.0 0.2 0.3 0.5 1.03 0.39 1.51 0.56 40.0 0.0 0.2 0.3 0.5 1.01 0.34 1.43 0.54 41.0 0.0 0.2 0.3 0.5 0.99 0.28 1.35 0.53 42.0 0.0 0.2 0.3 0.5 0.97 0.24 1.27 0.52 43.0 0.0 0.2 0.3 0.5 0.93 0.19 1.20 0.51 44.0 0.0 0.1 0.3 0.5 0.88 0.14 1.12 0.49 45.0 0.0 0.1 0.3 0.4 0.82 0.07 1.01 0.47 46.0 0.0 0.1 0.3 0.4 0.78 0.00 0.89 0.45 47.0 0.0 0.1 0.3 0.4 0.73 0.00 0.78 0.43 48.0 0.0 0.1 0.3 0.4 0.68 0.00 0.73 0.42 49.0 0.0 0.1 0.3 0.3 0.63 0.00 0.68 0.40 50.0 0.0 0.1 0.3 0.3 0.59 0.00 0.63 0.37 51.0 0.0 0.0 0.2 0.3 0.55 0.00 0.59 0.35 52.0 0.0 0.0 0.2 0.3 0.52 0.00 0.55 0.33 53.0 0.0 0.0 0.2 0.3 0.48 0.00 0.52 0.30 54.0 0.0 0.0 0.2 0.2 0.43 0.00 0.48 0.29 55.0 0.0 0.0 0.2 0.2 0.36 0.00 0.43 0.26 56.0 0.0 0.0 0.2 0.2 0.28 0.00 0.36 0.21 57.0 0.0 0.0 0.1 0.1 0.22 0.00 0.28 0.17 58.0 0.0 0.0 0.1 0.1 0.17 0.00 0.22 0.13 59.0 0.0 0.0 0.1 0.1 0.09 0.00 0.17 0.10 60.0 0.0 0.0 0.0 0.0 0.01 0.00 0.09 0.05 61.0 0.0 0.0 0.0 0.0 0.00 0.00 0.01 0.01 62.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 63.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 64.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 PEAK FLOWS 2.2 0.3 1.2 3.0 2.4 0.00 indicates inital condttion 0 c w ,g Cl) ...JO ]j CC IL iH~ IL W ft cfs 330.8 0.00 331.0 0.37 331.0 0.62 331.1 0.94 331.2 1.33 331.3 1.71 331.3 1.93 331.3 2.11 331.3 2.24 331.4 2.33 331.4 2.38 331.4 2.39 331.4 2.37 331.4 2.31 331.3 2.22 331.3 2.10 331.3 1.97 331.3 1.85 331.3 1.74 331.3 1.64 331.2 1.48 331.2 1.34 331.2 1.24 331.2 1.16 331.1 1.09 331.1 1.03 331.1 0.98 331.1 0.93 331.1 0.89 331.1 0.85 331.1 0.81 331.1 0.77 331.1 0.74 331.1 0.71 331.1 0.67 331.0 0.64 331.0 0.62 331.0 0.59 331.0 0.58 331.0 0.56 331.0 0.54 331.0 0.53 331.0 0.52 331.0 0.51 331.0 0.49 331.0 0.47 331.0 0.45 331.0 0.43 331.0 0.42 331.0 0.40 331.0 0.37 331.0 0.35 331.0 0.33 331.0 0.30 330.9 0.29 330.9 0.26 330.9 0.21 330.9 0.17 330.9 0.13 330.9 0.10 330.9 0.05 330.8 0.01 330.8 0.00 330.8 0.00 330.8 0.00 331.36 2.4 D.A.# (!) ...J~ ~Cl) N e~ " w 3.7 5.6 cfs cfs 0.0 0.00 0.7 0.66 1.3 1.33 2.0 1.99 2.7 2.65 3.3 3.32 3.5 3.54 3.2 3.21 2.9 2.88 2.5 2.55 2.2 2.21 1.9 1.88 1.6 1.55 1.2 1.22 0.9 0.89 0.6 0.56 0.2 0.22 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 3.5 3.5 10000050-dra.xls Exhibit D-3 EXHIBIT "D-3" PROPOSED DETENTION POND 13 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 D.A.# O.A.# O.A. # O.A.# Pond Routing EVENT= 50 c -a. 0 a w ~ I? z c ~ .,.. N iii i a ~ ~ ::E ~ i i "O ~ ~-0 8 I/) I/) .... IL IL N N a Qp 2.5 Tc 5.0 Inc 1.0 1.0 1.0 Time cfs cfs cfs cfs cfs cfs cfs 0.0 0.0 0.0 0.0 0.0 0.70 0.00 0.00 0.00 1.0 0.5 0.0 0.2 0.7 2.07 0.00 0.70 0.41 2.0 1.0 0.1 0.2 1.4 3.37 0.76 2.07 0.66 3.0 1.5 0.2 0.3 2.0 4.58 2.09 4.12 1.01 4.0 2.0 0.2 0.4 2.6 5.91 3.75 6.67 1.46 5.0 2.5 0.3 0.6 3.3 6.64 6.04 9.66 1.81 6.0 2.3 0.3 0.8 3.3 6.55 8.53 12.69 2.08 7.0 2.0 0.3 0.9 3.2 6.39 10.50 15.08 2.29 8.0 1.8 0.3 1.1 3.1 6.15 11.96 16.89 2.45 9.0 1.5 0.3 1.2 3.0 5.84 13.01 16.13 2.56 10.0 1.3 0.3 1.3 2.6 5.47 13.60 16.85 2.63 11.0 1.0 0.3 1.3 2.6 5.04 13.76 19.07 2.65 12.0 0.6 0.3 1.3 2.4 4.55 13.57 16.62 2.62 13.0 0.5 0.3 1.3 2.1 4.01 13.00 18.13 2.56 14.0 0.3 0.3 1.3 1.9 3.41 12.09 17.01 2.46 15.0 0.0 0.3 1.2 1.6 3.03 10.64 15.50 2.33 16.0 0.0 0.3 1.2 1.5 2.90 9.51 13.68 2.16 17.0 0.0 0.3 1.1 1.4 2.77 6.30 12.41 2.05 16.0 0.0 0.3 1.0 1.4 2.64 7.20 11.07 1.93 19.0 0.0 0.3 1.0 1.3 2.53 6.19 9.64 1.63 20.0 0.0 0.3 0.9 1.2 2.42 5.27 6.72 1.73 21.0 0.0 0.3 0.9 1.2 2.31 4.42 7.66 1.63 22.0 0.0 0.3 0.8 1.1 2.21 3.79 6.73 1.47 23.0 0.0 0.3 0.6 1.1 2.12 3.32 6.00 1.34 24.0 0.0 0.3 0.7 1.0 2.03 2.95 5.44 1.24 25.0 0.0 0.3 0.7 1.0 1.94 2.65 4.98 1.16 26.0 0.0 0.3 0.7 1.0 1.86 2.40 4.60 1.10 27.0 0.0 0.3 0.6 0.9 1.79 2.19 4.26 1.04 28.0 0.0 0.3 0.6 0.9 1.71 2.00 3.97 0.99 29.0 0.0 0.3 0.6 0.8 1.64 1.82 3.71 0.94 30.0 0.0 0.3 0.5 0.8 1.58 1.67 3.47 0.90 31.0 0.0 0.3 0.5 0.8 1.52 1.52 3.24 0.86 32.0 0.0 0.3 0.5 0.7 1.45 1.39 3.04 0.83 33.0 0.0 0.3 0.4 0.7 1.39 1.26 2.84 0.79 34.0 0.0 0.3 0.4 0.7 1.33 1.13 2.65 0.76 35.0 0.0 0.2 0.4 0.6 1.27 1.01 2.46 0.72 36.0 0.0 0.2 0.4 0.6 1.21 0.89 2.27 0.69 37.0 0.0 0.2 0.4 0.6 1.16 0.77 2.10 0.66 38.0 0.0 0.2 0.4 0.6 1.14 0.67 1.94 0.63 39.0 0.0 0.2 0.3 0.6 1.11 0.58 1.81 0.61 40.0 0.0 0.2 0.3 0.5 1.09 0.51 1.70 0.59 41.0 0.0 0.2 0.3 0.5 1.06 0.45 1.60 0.57 42.0 0.0 0.2 0.3 0.5 1.04 0.39 1.51 0.56 43.0 0.0 0.2 0.3 0.5 1.01 0.34 1.43 0.55 44.0 0.0 0.2 0.3 0.5 0.99 0.29 1.35 0.53 45.0 0.0 0.2 0.3 0.5 0.97 0.24 1.28 0.52 46.0 0.0 0.2 0.3 0.5 0.95 0.20 1.21 0.51 47.0 0.0 0.2 0.3 0.5 0.91 0.15 1.14 0.50 48.0 0.0 0.1 0.3 0.4 0.86 0.10 1.06 0.48 49.0 0.0 0.1 0.3 0.4 0.80 0.03 0.96 0.46 50.0 0.0 0.1 0.3 0.4 0.74 0.00 0.83 0.44 51.0 0.0 0.1 0.3 0.4 0.69 0.00 0.74 0.43 52.0 0.0 0.1 0.3 0.3 0.63 0.00 0.69 0.40 53.0 0.0 0.1 0.2 0.3 0.59 0.00 0.63 0.37 54.0 0.0 0.1 0.2 0.3 0.55 0.00 0.59 0.35 55.0 0.0 0.0 0.2 0.3 0.51 0.00 0.55 0.32 56.0 0.0 0.0 0.2 0.2 0.48 0.00 0.51 0.30 57.0 0.0 0.0 0.2 0.2 0.42 0.00 0.48 0.28 58.0 0.0 0.0 0.2 0.2 0.32 0.00 0.42 0.25 59.0 0.0 0.0 0.1 0.1 0.23 0.00 0.32 0.19 60.0 0.0 0.0 0.1 0.1 0.18 0.00 0.23 0.14 61.0 0.0 0.0 0.1 0.1 0.11 0.00 0.18 0.11 62.0 0.0 0.0 0.0 0.0 0.03 0.00 0.11 0.07 63.0 0.0 0.0 0.0 0.0 0.00 0.00 0.03 0.02 64.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 0.00 PEAK FLOWS 2.5 0.3 1.3 3.3 2.6 0.00 indicates inltal condition 0 c w 0 I/) :;::; ...J 0 gj ~~ ~f ILW ft Cfs 330.8 0.00 331.0 0.41 331.0 0.66 331.1 1.01 331.2 1.46 331.3 1.81 331.3 2.08 331.3 2.29 331.4 2.45 331.4 2.56 331.4 2.63 331.4 2.65 331.4 2.62 331.4 2.56 331.4 2.46 331.4 2.33 331.3 2.16 331.3 2.05 331.3 1.93 331.3 1.83 331.3 1.73 331.3 1.63 331.2 1.47 331.2 1.34 331.2 1.24 331.2 1.16 331.1 1.10 331.1 1.04 331.1 0.99 331.1 0.94 331.1 0.90 331.1 0.86 331.1 0.83 331.1 0.79 331.1 0.76 331.1 0.72 331.1 0.69 331.0 0.66 331.0 0.63 331.0 0.61 331.0 0.59 331.0 0.57 331.0 0.56 331.0 0.55 331.0 0.53 331.0 0.52 331.0 0.51 331.0 0.50 331.0 0.48 331.0 0.46 331.0 0.44 331.0 0.43 331.0 0.40 331.0 0.37 331.0 0.35 331.0 0.32 331.0 0.30 330.9 0.28 330.9 0.25 330.9 0.19 330.9 0.14 330.9 0.11 330.9 0.07 330.8 0.02 330.8 0.00 331.40 2.6 0.A. # 0 ...J~ ~I/) N e ti )( w 4.2 5.6 cfs cfs 0.0 0.00 0.7 0.75 1.5 1.50 2.2 2.24 3.0 2.99 3.7 3.74 4.0 3.99 3.6 3.62 3.2 3.24 2.9 2.67 2.5 2.50 2.1 2.12 1.7 1.75 1.4 1.37 1.0 1.00 0.6 0.63 0.3 0.25 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 4.0 4.0 10000050-<Jra.xls Exhibit D-3 EXHIBIT "D-3" PROPOSED DETENTION POND #3 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 D.A. # D.A.# D.A. # D.A. # Pond Routing EVENT= 100 c -a. 0 0 w ~ I! z c ~ ... N iii t 0 15 ... l -g ~ + ... ~ .. ! c + 0 8 a; Ill c ... IL IL N N 0 Qp 2.8 Tc 5.0 Inc 1.0 1.0 1.0 Time cfs cfs cfs cfs cfs cfs cfs 0.0 0.0 0.0 0.0 0.0 0.78 0.00 0.00 0.00 1.0 0.6 0.0 0.2 0.8 2.29 0.00 0.78 0.43 2.0 1.1 0.1 0.3 1.5 3.70 0.90 2.29 0.70 3.0 1.7 0.2 0.3 2.2 5.06 2.41 4.60 1.10 4.0 2.2 0.2 0.4 2.9 6.59 4.27 7.47 1.60 5.0 2.8 0.3 0.6 3.7 7.40 7.03 10.86 1.92 6.0 2.5 0.3 0.9 3.7 7.29 9.96 14.43 2.23 7.0 2.2 0.3 1.1 3.6 7.11 12.28 17.25 2.48 8.0 2.0 0.3 1.2 3.5 6.84 14.04 19.39 2.67 9.0 1.7 0.3 1.3 3.3 6.50 15.27 20.88 2.81 10.0 1.4 0.3 1.4 3.2 6.08 15.99 21.76 2.89 11.0 1.1 0.3 1.5 2.9 5.59 16.25 22.07 2.91 12.0 0.8 0.3 1.5 2.7 5.04 16.05 21.84 2.89 13.0 0.6 0.4 1.5 2.4 4.43 15.44 21.10 2.83 14.0 0.3 0.4 1.4 2.1 3.77 14.44 19.88 2.72 15.0 0.0 0.3 1.4 1.7 3.35 13.07 18.21 2.57 16.0 0.0 0.3 1.3 1.6 3.20 11.60 16.42 2.41 17.0 0.0 0.3 1.2 1.6 3.06 10.26 14.80 2.27 18.0 0.0 0.3 1.2 1.5 2.92 9.05 13.32 2.14 19.0 0.0 0.3 1.1 1.4 2.79 7.94 11.97 2.02 20.0 0.0 0.3 1.0 1.4 2.67 6.92 10.73 1.91 21.0 0.0 0.3 1.0 1.3 2.55 5.99 9.59 1.80 22.0 0.0 0.3 0.9 1.2 2.44 5.12 8.54 1.71 23.0 0.0 0.3 0.9 1.2 2.34 4.33 7.56 1.61 24.0 0.0 0.3 0.8 1.1 2.24 3.75 6.67 1.46 25.0 0.0 0.3 0.8 1.1 2.14 3.31 5.99 1.34 26.0 0.0 0.3 0.7 1.0 2.05 2.96 5.45 1.25 27.0 0.0 0.3 0.7 1.0 1.96 2.67 5.01 1.17 28.0 0.0 0.3 0.7 1.0 1.88 2.43 4.63 1.10 29.0 0.0 0.3 0.6 0.9 1.81 2.21 4.31 1.05 30.0 0.0 0.3 0.6 0.9 1.73 2.03 4.02 1.00 31.0 0.0 0.3 0.6 0.8 1.66 1.86 3.76 0.95 32.0 0.0 0.3 0.5 0.8 1.60 1.70 3.52 0.91 33.0 0.0 0.3 0.5 0.8 1.53 1.55 3.30 0.87 34.0 0.0 0.3 0.5 0.8 1.47 1.42 3.09 0.83 35.0 0.0 0.3 0.4 0.7 1.42 1.29 2.89 0.80 36.0 0.0 0.3 0.4 0.7 1.36 1.17 2.71 0.77 37.0 0.0 0.3 0.4 0.7 1.30 1.06 2.53 0.74 38.0 0.0 0.3 0.4 0.6 1.24 0.94 2.36 0.71 39.0 0.0 0.2 0.4 0.6 1.20 0.83 2.19 0.68 40.0 0.0 0.2 0.4 0.6 1.17 0.73 2.03 0.65 41.0 0.0 0.2 0.3 0.6 1.14 0.65 1.90 0.63 42.0 0.0 0.2 0.3 0.6 1.12 0.57 1.79 0.61 43.0 0.0 0.2 0.3 0.6 1.09 0.51 1.69 0.59 44.0 0.0 0.2 0.3 0.5 1.07 0.45 1.60 0.57 45.0 0.0 0.2 0.3 0.5 1.04 0.39 1.51 0.56 46.0 0.0 0.2 0.3 0.5 1.02 0.34 1.44 0.55 47.0 0.0 0.2 0.3 0.5 0.99 0.29 1.36 0.53 48.0 0.0 0.2 0.3 0.5 0.97 0.25 1.29 0.52 49.0 0.0 0.2 0.3 0.5 0.95 0.20 1.22 0.51 50.0 0.0 0.2 0.3 0.5 0.93 0.16 1.15 0.50 51.0 0.0 0.2 0.3 0.5 0.89 0.11 1.09 0.49 52.0 0.0 0.1 0.3 0.4 0.83 0.06 1.01 0.47 53.0 0.0 0.1 0.3 0.4 0.76 0.00 0.89 0.45 54.0 0.0 0.1 0.3 0.4 0.70 0.00 0.76 0.43 55.0 0.0 0.1 0.2 0.3 0.64 0.00 0.70 0.41 56.0 0.0 0.1 0.2 0.3 0.59 0.00 0.64 0.38 57.0 0.0 0.1 0.2 0.3 0.55 0.00 0.59 0.35 58.0 0.0 0.1 0.2 0.3 0.51 0.00 0.55 0.32 59.0 0.0 0.0 0.2 0.2 0.45 0.00 0.51 0.30 60.0 0.0 0.0 0.2 0.2 0.37 0.00 0.45 0.27 61.0 0.0 0.0 0.1 0.2 0.29 0.00 0.37 0.22 62.0 0.0 0.0 0.1 0.1 0.21 0.00 0.29 0.17 63.0 0.0 0.0 0.1 0.1 0.12 0.00 0.21 0.12 64.0 0.0 0.0 0.0 0.0 0.04 0.00 0.12 0.07 PEAK FLOWS 2.8 0.4 1.5 3.7 2.9 o.oo indicates inital cond~ion 0 c w 0 Ill 'O ~ ...J 0 ~~ c > 0 .!! 00:: IL W F-IL ft cfs 330.8 0.00 331.0 0.43 331.1 0.70 331.1 1.10 331.2 1.60 331.3 1.92 331.3 2.23 331.4 2.48 331.4 2.67 331.4 2.81 331.4 2.89 331.4 2.91 331.4 2.89 331.4 2.83 331.4 2.72 331.4 2.57 331.4 2.41 331.3 2.27 331.3 2.14 331.3 2.02 331.3 1.91 331.3 1.80 331.3 1.71 331.2 1.61 331.2 1.46 331.2 1.34 331.2 1.25 331.2 1.17 331.1 1.10 331.1 1.05 331.1 1.00 331.1 0.95 331.1 0.91 331.1 0.87 331.1 0.83 331.1 0.80 331.1 0.77 331.1 0.74 331.1 0.71 331.1 0.68 331.0 0.65 331.0 0.63 331.0 0.61 331.0 0.59 331.0 0.57 331.0 0.56 331.0 0.55 331.0 0.53 331.0 0.52 331.0 0.51 331.0 0.50 331.0 0.49 331.0 0.47 331.0 0.45 331.0 0.43 331.0 0.41 331.0 0.38 331.0 0.35 331.0 0.32 331.0 0.30 330.9 0.27 330.9 0.22 330.9 0.17 330.9 0.12 330.9 0.07 331.44 2.9 D.A. # 0 ..... ~ ~ !!! N )( 0 >< w ... w 4.7 5.6 cfs cfs 0.0 0.00 0.8 0.84 1.7 1.68 2.5 2.51 3.4 3.35 4.2 4.19 4.5 4.47 4.1 4.05 3.6 3.63 3.2 3.21 2.8 2.80 2.4 2.38 2.0 1.96 1.5 1.54 1.1 1.12 0.7 0.70 0.3 0.28 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 0.0 0.00 4.5 4.5 10000050-dra.xls Exhibit D-3 D.A.# D.A.# i= 0 Q. w I! z ~ iii ,, :I: ~ .. 8 .,., Qp 4.2 Tc 5.0 Inc 1.0 Time cts cts 0.0 0.0 0.0 1.0 0.8 0.8 2.0 1.7 1.7 3.0 2.5 2.5 4.0 3.4 3.4 5.0 4.2 4.2 6.0 3.8 3.8 7.0 3.4 3.4 8.0 3.0 3.0 9.0 2.5 2.5 10.0 2.1 2.1 11.0 1.7 1.7 12.0 1.3 1.3 13.0 0.8 0.8 14.0 0.4 0.4 15.0 0.0 0.0 16.0 0.0 0.0 17.0 0.0 0.0 18.0 0.0 0.0 19.0 0.0 0.0 20.0 0.0 0.0 21.0 0.0 0.0 22.0 0.0 0.0 23.0 0.0 0.0 24.0 0.0 0.0 25.0 0.0 0.0 26.0 0.0 0.0 27.0 0.0 0.0 28.0 0.0 0.0 29.0 0.0 0.0 30.0 0.0 0.0 31.0 0.0 0.0 32.0 0.0 0.0 33.0 0.0 0.0 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 51.0 0.0 0.0 52.0 0.0 0.0 53.0 0.0 0.0 54.0 0.0 0.0 55.0 0.0 0.0 56.0 0.0 0.0 57.0 0.0 0.0 58.0 0.0 0.0 59.0 0.0 0.0 60.0 0.0 0.0 61.0 0.0 0.0 62.0 0.0 0.0 63.0 0.0 0.0 64.0 0.0 0.0 PEAK FLOWS 4.2 4.2 o.oo indicates inltal condition EXHIBIT "D-4" PROPOSED DETENTION POND 14 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 Pond Routlna EVENT= 5 c 0 C1 ~ c w c 0 ,,, t C1 ;; ..J 0 ~ t ... ]j ~ t> ! + ,,, c ~ r: N N C1 11..W cfs cts Cfs cts ft cfs 0.84 0.00 0.00 0.00 325.4 0.00 2.53 0.47 0.84 0.19 325.5 0.19 4.22 2.09 3.00 0.45 325.5 0.45 5.90 4.66 6.31 0.83 325.6 0.83 7.59 7.95 10.56 1.30 325.7 1.30 8.01 11.82 15.54 1.86 325.8 1.86 7.17 15.14 19.83 2.34 325.8 2.34 6.32 17.06 22.31 2.62 325.9 2.62 5.48 17.90 23.38 2.74 325.9 2.74 4.64 17.89 23.38 2.74 325.9 2.74 3.79 17.23 22.53 2.65 325.9 2.65 2.95 16.07 21.03 2.48 325.8 2.48 2.11 14.51 19.02 2.25 325.8 2.25 1.26 12.65 16.62 1.98 325.8 1.98 0.42 10.55 13.92 1.68 325.7 1.68 0.00 8.28 10.98 1.35 325.7 1.35 0.00 6.18 8.28 1.05 325.6 1.05 0.00 4.56 6.18 0.81 325.6 0.81 0.00 3.30 4.56 0.63 325.6 0.63 0.00 2.33 3.30 0.49 325.5 0.49 0.00 1.57 2.33 0.38 325.5 0.38 0.00 0.98 1.57 0.29 325.5 0.29 0.00 0.55 0.98 0.22 325.5 0.22 0.00 0.30 0.55 0.12 325.5 0.12 0.00 0.17 0.30 0.07 325.4 0.07 0.00 0.09 0.17 0.04 325.4 0.04 0.00 0.05 0.09 0.02 325.4 0.02 0.00 0.03 0.05 0.01 325.4 0.01 0.00 0.02 0.03 0.01 325.4 0.01 0.00 0.01 0.02 0.00 325.4 0.00 0.00 0.01 0.01 0.00 325.4 0.00 0.00 0.00 O.Q1 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 2.7 325.89 2.7 D.A.# .., )( w 3.0 5.0 cfs 0.0 0.6 1.2 1.8 2.4 3.0 2.7 2.4 2.1 1.8 1.5 1.2 0.9 0.6 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.0 0 ..J f§ ~ !? ~r.:i cfs 0.00 0.61 1.21 1.82 2.43 3.03 2.73 2.43 2.12 1.82 1.52 1.21 0.91 0.61 0.30 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3.0 10000050-dra.xls Exhibit 0-4 D.A.# D.A.# .c 0 Q. w I! z ~ iii '1:1 ~ ~ .. 8 on Qp 4.7 Tc 5.0 Inc 1.0 Time cfs c1s 0.0 0.0 0.0 1.0 0.9 0.9 2.0 1.9 1.9 3.0 2.8 2.8 4.0 3.8 3.8 5.0 4.7 4.7 6.0 4.2 4.2 7.0 3.8 3.8 8.0 3.3 3.3 9.0 2.8 2.8 10.0 2.3 2.3 11.0 1.9 1.9 12.0 1.4 1.4 13.0 0.9 0.9 14.0 0.5 0.5 15.0 0.0 0.0 16.0 0.0 0.0 17.0 0.0 0.0 18.0 0.0 0.0 19.0 0.0 0.0 20.0 0.0 0.0 21.0 0.0 0.0 22.0 0.0 0.0 23.0 0.0 0.0 24.0 0.0 0.0 25.0 0.0 0.0 26.0 0.0 0.0 27.0 0.0 0.0 28.0 0.0 0.0 29.0 0.0 0.0 30.0 0.0 0.0 31.0 0.0 0.0 32.0 0.0 0.0 33.0 0.0 0.0 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 51.0 0.0 0.0 52.0 0.0 0.0 53.0 0.0 0.0 54.0 0.0 0.0 55.0 0.0 0.0 56.0 0.0 0.0 57.0 0.0 0.0 58.0 0.0 0.0 59.0 0.0 0.0 60.0 0.0 0.0 61.0 0.0 0.0 62.0 0.0 0.0 63.0 0.0 0.0 64.0 0.0 0.0 PEAK FLOWS 4.7 4.7 o.oo indicates inltal condition EXHIBIT "D-4" PROPOSED DETENTION POND 14 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 Pond Routing EVENT= 10 c 0 a ~ c w c 0 "' i a ., ...J 0 ! ~ i i li ~~ "' gf N N a LW c1s c1s cfs cfs n cfs 0.94 0.00 0.00 0.00 325.4 0.00 2.82 0.52 0.94 0.21 325.5 0.21 4.70 2.36 3.34 0.49 325.5 0.49 6.58 5.24 7.06 0.91 325.6 0.91 8.46 8.93 11.82 1.44 325.7 1.44 8.93 13.25 17.39 2.07 325.8 2.07 7.99 16.96 22.18 2.61 325.9 2.61 7.05 19.11 24.95 2.92 325.9 2.92 6.11 20.05 26.16 3.06 325.9 3.06 5.17 20.04 26.16 3.06 325.9 3.06 4.23 19.31 25.21 2.95 325.9 2.95 3.29 18.02 23.54 2.76 325.9 2.76 2.35 16.29 21.31 2.51 325.9 2.51 1.41 14.22 18.64 2.21 325.8 2.21 0.47 11.88 15.63 1.87 325.8 1.87 0.00 9.34 12.35 1.50 325.7 1.50 0.00 7.01 9.34 1.17 325.6 1.17 0.00 5.20 7.01 0.90 325.6 0.90 0.00 3.80 5.20 0.70 325.6 0.70 0.00 2.71 3.80 0.54 325.5 0.54 0.00 1.87 2.71 0.42 325.5 0.42 0.00 1.21 1.87 0.33 325.5 0.33 0.00 0.71 1.21 0.25 325.5 0.25 0.00 0.39 0.71 0.16 325.5 0.16 0.00 0.22 0.39 0.09 325.4 0.09 0.00 0.12 0.22 0.05 325.4 0.05 0.00 0.07 0.12 0.03 325.4 0.03 0.00 0.04 0.07 0.02 325.4 0.02 0.00 0.02 0.04 0.01 325.4 0.01 0.00 0.01 0.02 0.00 325.4 0.00 0.00 0.01 0.01 0.00 325.4 0.00 0.00 0.00 0.01 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 3.1 325.93 3.1 D.A.# .., )( w 3.4 5.0 cfs 0.0 0.7 1.4 2.0 2.7 3.4 3.0 2.7 2.4 2.0 1.7 1.4 1.0 0.7 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.4 0 z ...J I= ~ !? g~ cfs 0.00 0.68 1.35 2.03 2.71 3.38 3.04 2.71 2.37 2.03 1.69 1.35 1.01 0.68 0.34 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3.4 10000050-dra.xls Exhibit D-4 D.A. # D.A. # .c 0 a. w I! z ~ iii 't> :IE :t"" 8 on Qp 5.4 Tc 5.0 Inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 1.1 1.1 2.0 2.1 2.1 3.0 3.2 3.2 4.0 4.3 4.3 5.0 5.4 5.4 6.0 4.8 4.8 7.0 4.3 4.3 8.0 3.7 3.7 9.0 3.2 3.2 10.0 2.7 2.7 11.0 2.1 2.1 12.0 1.6 1.6 13.0 1.1 1.1 14.0 0.5 0.5 15.0 0.0 0.0 16.0 0.0 0.0 17.0 0.0 0.0 18.0 0.0 0.0 19.0 0.0 0.0 20.0 0.0 0.0 21.0 0.0 0.0 22.0 0.0 0.0 23.0 0.0 0.0 24.0 0.0 0.0 25.0 0.0 0.0 26.0 0.0 0.0 27.0 0.0 0.0 28.0 0.0 0.0 29.0 0.0 0.0 30.0 0.0 0.0 31.0 0.0 0.0 32.0 0.0 0.0 33.0 0.0 0.0 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 51.0 0.0 0.0 52.0 0.0 0.0 53.0 0.0 0.0 54.0 0.0 0.0 55.0 0.0 0.0 56.0 0.0 0.0 57.0 0.0 0.0 58.0 0.0 0.0 59.0 0.0 0.0 60.0 0.0 0.0 61.0 0.0 0.0 62.0 0.0 0.0 63.0 0.0 0.0 64.0 0.0 0.0 PEAK FLOWS 5.4 5.4 o. 00 indicates in ital condition EXHIBIT "D-4" PROPOSED DETENTION POND 14 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 Pond Routing EVENT= 25 c 0 a i c w c .2 "' i a _, 0 ! ~ i i 1! ~ :: ~ "' "' 0 .!! gg: N N a 11..W cfs cfs cfs cts ft cfs 1.07 0.00 0.00 0.00 325.4 0.00 3.21 0.60 1.07 0.24 325.5 0.24 5.35 2.72 3.81 0.54 325.5 0.54 7.49 6.02 8.07 1.02 325.6 1.02 9.63 10.25 13.52 1.64 325.7 1.64 10.17 15.18 19.88 2.35 325.8 2.35 9.10 19.42 25.35 2.97 325.9 2.97 8.03 21.88 28.52 3.32 326.0 3.32 6.96 22.95 29.90 3.48 326.0 3.48 5.89 22.95 29.91 3.48 326.0 3.48 4.82 22.13 28.84 3.36 326.0 3.36 3.75 20.66 26.94 3.14 325.9 3.14 2.68 18.68 24.40 2.86 325.9 2.86 1.61 16.33 21.36 2.52 325.9 2.52 0.54 13.67 17.93 2.13 325.8 2.13 0.00 10.78 14.20 1.71 325.7 1.71 0.00 8.12 10.78 1.33 325.7 1.33 0.00 6.06 8.12 1.03 325.6 1.03 0.00 4.47 6.06 0.80 325.6 0.80 0.00 3.23 4.47 0.62 325.6 0.62 0.00 2.27 3.23 0.48 325.5 0.48 0.00 1.53 2.27 0.37 325.5 0.37 0.00 0.95 1.53 0.29 325.5 0.29 0.00 0.53 0.95 0.21 325.5 0.21 0.00 0.29 0.53 0.12 325.4 0.12 0.00 0.16 0.29 0.07 325.4 0.07 0.00 0.09 0.16 0.04 325.4 0.04 0.00 0.05 0.09 0.02 325.4 0.02 0.00 0.03 0.05 0.01 325.4 0.01 0.00 0.02 0.03 0.01 325.4 0.01 0.00 0.01 0.02 0.00 325.4 0.00 0.00 0.00 0.01 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 3.5 326.00 3.5 D.A.# .., >< w 3.9 5.0 els 0.0 0.8 1.5 2.3 3.1 3.9 3.5 3.1 2.7 2.3 1.9 1.5 1.2 0.8 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.9 0 _, ~ :: !!? ~n;j cts 0.00 0.77 1.54 2.31 3.08 3.85 3.47 3.08 2.70 2.31 1.93 1.54 1.16 0.77 0.39 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3.9 10000050-dra.xls Exhibit D-4 D.A.# D.A.# z: 0 Q. w I! z ~ iii "O ::E ~ .. 8 "' Qp 8.0 Tc 5.0 Inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 1.2 1.2 2.0 2.4 2.4 3.0 3.6 3.6 4.0 4.8 4.8 5.0 6.0 6.0 6.0 5.4 5.4 7.0 4.8 4.8 8.0 4.2 4.2 9.0 3.6 3.6 10.0 3.0 3.0 11.0 2.4 2.4 12.0 1.8 1.8 13.0 1.2 1.2 14.0 0.6 0.6 15.0 0.0 0.0 16.0 0.0 0.0 17.0 0.0 0.0 18.0 0.0 0.0 19.0 0.0 0.0 20.0 0.0 0.0 21.0 0.0 0.0 22.0 0.0 0.0 23.0 0.0 0.0 24.0 0.0 0.0 25.0 0.0 0.0 26.0 0.0 0.0 27.0 0.0 0.0 28.0 0.0 0.0 29.0 0.0 0.0 30.0 0.0 0.0 31.0 0.0 0.0 32.0 0.0 0.0 33.0 0.0 0.0 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 51.0 0.0 0.0 52.0 0.0 0.0 53.0 0.0 0.0 54.0 0.0 0.0 55.0 0.0 0.0 56.0 0.0 0.0 57.0 0.0 0.0 58.0 0.0 0.0 59.0 0.0 0.0 60.0 0.0 0.0 61.0 0.0 0.0 62.0 0.0 0.0 63.0 0.0 0.0 64.0 0.0 0.0 PEAK FLOWS 6.0 6.0 o.oo indicates innal condnion EXHIBIT "D-4" PROPOSED DETENTION POND 14 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 Pond Routing EVENT= 50 c 0 a i c w c ~ ,,, i a _.o t; ~ i i ]j ~~ ,,, ,,, g IE N N a 11..W cfs cfs cfs cfs ft cfs 1.21 0.00 0.00 0.00 325.4 0.00 3.62 0.70 1.21 0.25 325.5 0.25 6.03 3.12 4.32 0.60 325.6 0.60 8.45 6.86 9.15 1.15 325.6 1.15 10.86 11.63 15.31 1.84 325.7 1.84 11.46 17.21 22.49 2.64 325.9 2.64 10.26 21.99 28.67 3.34 326.0 3.34 9.05 24.93 32.25 3.66 326.0 3.66 7.84 26.39 33.98 3.79 326.0 3.79 6.64 26.61 34.24 3.81 326.0 3.81 5.43 25.77 33.25 3.74 326.0 3.74 4.22 24.04 31.20 3.58 326.0 3.58 3.02 21.68 28.27 3.29 326.0 3.29 1.81 18.91 24.70 2.89 325.9 2.89 0.60 15.83 20.72 2.45 325.8 2.45 0.00 12.51 16.44 1.96 325.8 1.96 0.00 9.46 12.51 1.52 325.7 1.52 0.00 7.10 9.46 1.18 325.6 1.18 0.00 5.27 7.10 0.92 325.6 0.92 0.00 3.85 5.27 0.71 325.6 0.71 0.00 2.75 3.85 0.55 325.5 0.55 0.00 1.90 2.75 0.43 325.5 0.43 0.00 1.24 1.90 0.33 325.5 0.33 0.00 0.73 1.24 0.26 325.5 0.26 0.00 0.41 0.73 0.16 325.5 0.16 0.00 0.23 0.41 0.09 325.4 0.09 0.00 0.13 0.23 0.05 325.4 0.05 0.00 0.07 0.13 0.03 325.4 0.03 0.00 0.04 0.07 0.02 325.4 0.02 0.00 0.02 0.04 0.01 325.4 0.01 0.00 0.01 0.02 0.00 325.4 0.00 0.00 0.01 O.Q1 0.00 325.4 0.00 0.00 0.00 0.01 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 3.8 326.03 3.8 D.A. # "' )( w 4.3 5.0 cfs 0.0 0.9 1.7 2.6 3.5 4.3 3.9 3.5 3.0 2.6 2.2 1.7 1.3 0.9 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.3 0 ... ~ ~ !! g~ cts 0.00 0.87 1.74 2.61 3.47 4.34 3.91 3.47 3.04 2.61 2.17 1.74 1.30 0.87 0.43 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4.3 10000050-<tra.xls Exhibit D-4 D.A.# D.A.# .s::; 0 Q. w I! z ~ iii :E "O ~-8 "' QD 6.8 Tc 5.0 Inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 1.4 1.4 2.0 2.7 2.7 3.0 4.1 4.1 4.0 5.4 5.4 5.0 6.6 6.6 6.0 6.1 6.1 7.0 5.4 5.4 6.0 4.7 4.7 9.0 4.1 4.1 10.0 3.4 3.4 11.0 2.7 2.7 12.0 2.0 2.0 13.0 1.4 1.4 14.0 0.7 0.7 15.0 0.0 0.0 16.0 0.0 0.0 17.0 0.0 0.0 16.0 0.0 0.0 19.0 0.0 0.0 20.0 0.0 0.0 21.0 0.0 0.0 22.0 0.0 0.0 23.0 0.0 0.0 24.0 0.0 0.0 25.0 0.0 0.0 26.0 0.0 0.0 27.0 0.0 0.0 26.0 0.0 0.0 29.0 0.0 0.0 30.0 0.0 0.0 31.0 0.0 0.0 32.0 0.0 0.0 33.0 0.0 0.0 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 36.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 46.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 51.0 0.0 0.0 52.0 0.0 0.0 53.0 0.0 0.0 54.0 0.0 0.0 55.0 0.0 0.0 56.0 0.0 0.0 57.0 0.0 0.0 56.0 0.0 0.0 59.0 0.0 0.0 60.0 0.0 0.0 61.0 0.0 0.0 62.0 0.0 0.0 63.0 0.0 0.0 64.0 0.0 0.0 PEAK FLOWS 6.8 6.8 0.00 indicates infal condition EXHIBIT "D-4" PROPOSED DETENTION POND 14 ROUTING Edelweiss Business Center, Lot 4 & 9, Block 2 Pond Routina EVENT= 100 c 0 a ~ c w c .S1 (I) I a ...10 ~ I I "O li ~~ ! c > (I) 0 .!! ~IE N N a D..W cfs cfs Cfs cfs ft cfs 1.35 0.00 0.00 0.00 325.4 0.00 4.05 0.61 1.35 0.27 325.5 0.27 6.75 3.54 4.67 0.66 325.6 0.66 9.46 7.75 10.29 1.27 325.7 1.27 12.16 13.10 17.20 2.05 325.6 2.05 12.63 19.35 25.26 2.96 325.9 2.96 11.46 24.67 32.16 3.66 326.0 3.66 10.13 26.40 36.35 3.96 326.0 3.96 6.76 30.24 36.53 4.14 326.1 4.14 7.43 30.66 39.02 4.16 326.1 4.16 6.06 29.67 36.09 4.11 326.1 4.11 4.73 26.06 35.95 3.95 326.0 3.95 3.36 25.36 32.76 3.70 326.0 3.70 2.03 22.06 26.76 3.35 326.0 3.35 0.66 16.44 24.09 2.62 325.9 2.62 0.00 14.59 19.12 2.26 325.6 2.26 0.00 11.06 14.59 1.76 325.7 1.76 0.00 6.35 11.06 1.36 325.7 1.36 0.00 6.24 6.35 1.06 325.6 1.06 0.00 4.61 6.24 0.62 325.6 0.62 0.00 3.34 4.61 0.63 325.6 0.63 0.00 2.35 3.34 0.49 325.5 0.49 0.00 1.59 2.35 0.36 325.5 0.36 0.00 1.00 1.59 0.30 325.5 0.30 0.00 0.56 1.00 0.22 325.5 0.22 0.00 0.31 0.56 0.12 325.5 0.12 0.00 0.17 0.31 0.07 325.4 0.07 0.00 0.10 0.17 0.04 325.4 0.04 0.00 0.05 0.10 0.02 325.4 0.02 0.00 0.03 0.05 0.01 325.4 0.01 0.00 0.02 0.03 0.01 325.4 0.01 0.00 0.01 0.02 0.00 325.4 0.00 0.00 0.01 0.01 0.00 325.4 0.00 0.00 0.00 0.01 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 0.00 0.00 0.00 0.00 325.4 0.00 4.2 326.07 4.2 D.A.# .., )( w 4.9 5.0 cfs 0.0 1.0 1.9 2.9 3.9 4.9 4.4 3.9 3.4 2.9 2.4 1.9 1.5 1.0 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.9 0 .... ~ ~!!? 0 >< t-W cfs 0.00 0.97 1.94 2.92 3.69 4.66 4.37 3.69 3.40 2.92 2.43 1.94 1.46 0.97 0.49 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4.9 10000050-dra.xls Exhibtt D-4 CERTIFICATION I hereby certify that this report and accompanying drainage plan for the drainage design was prepared by me in accordance with the provisions of the Cities Drainage Policy and Design Standards for the Owner thereof. •''''''' .,..-.."'(E. OF '!'. \\ r-<... -r •••••••• i:.J.. '• "" ~ .. * .. 1"1 • "" •• • ••• ~ a "* .· ·. ... "*: ··*'i. ~......... • * ~ ~#! LJ\~Ry.·······················~ ............. ~~-~~ BERRY ~ '~ \ 7 424a······.:-:z.1 f o -~~ Q •• "' .~~-. ~~··· "' ate DRAINAGE REPORT S O UTHWEST BUSINESS CENTER LOT 7 & LOT 8, BLOCK TWO EDEL WEISS BUSINESS CENTER COLLEGE STATION, BRAZOS COUNTY, TEXAS OCTOBER , 2003 INTRODUCTION: The proposed development is located on the northeast side of F.M. 2154 (Wellborn Road) approximately 800 feet from the intersection of Rock Prairie Road and F.M. 2154 (Wellborn Road). The proposed development is to be located on a 2.43 acre tract or parcel ofland comprised of Lot 7 & Lot 8, Block Two of Edelweiss Business Center. The proposed development consists of the construction of three (3) new commerical buildings, Building "A", Building "B " and Building "C" with areas of 2,400 square feet , and 11 ,300 square feet , and 8,500 square feet respectively. Concrete drives and parking areas as well as sidewalks will also be constructed as part of the completed project. The subject 2.43 acre tract is currently covered by tall weeds. The natural gradient of the property is approximately 1.16% grade which slopes from a high elevation of approximately 330 rnsl at the northwest corner of the site to a low elevation of approximately 325 rnsl at the southeast corner of the said site. The subject property does not lie within a designated 100-year flood plain or special flood hazard area as depicted on FIRM Community Panel No. 48041C0142 C, effective date July 2, 1992 EXISTING DRAINAGE BASIN DESCRIPTION : The watershed tributary to the subject tract is 2.43 acres , with 0.13 acres of said 2.43 acres being included in the run-off computations and detention pond design for the development of Lots 5 & 6 , Block Two , Edelweiss Business Center. PAG E TX-1 PROPOSED DRAINAGE : The proposed grading of the site will route the majority of the anticipated storm water run-off via the proposed drives and parking areas to storm water detention facilities # 1 & #2 which are proposed to be respectively located at the front and rear of the subject site as the site in the undeveloped condition has a ridge that runs from the northwest comer towords the southeast comer of subject tract and directs storm water run-off to the front and rear of the property making two (2) distinct drainage basins. Both detention ponds adequately facilitate the run-off produced by the 2, 5, 10 , 25 , 50 and 100-year storm events. Metering of the storm water will be accomplished in both ponds by the utilization of a rectangular weir for Detention Pond #1 and a rectangular orifice for Detention Pond #2 . The proposed curbing around the perimeter of the site will function as an emergency spillway which will result in non-concentration of excess run-off which would need to exit the site due to events exceeding the 100-year storm event. Metered drainage from Detention Pond # 1 will enter the existing ditch which runs parallel with and adjacent to F.M. 2154 (Wellborn Road) in a southeasterly direction away from the subject site. Metered drainage from detention pond #2 will sheet drain away from the subject site in a easterly direction. As stated previously, utilization of detention ponds # 1 & #2 will attenuate the flows from the two (2) basins resulting in diminished peak discharge rates for the 2 , 5, 10 , 25 , 50 , and 100-year storm events. CONCLUSION: This project is in compliance with the City of College Station's Stormwater Design Standards. PAGE TX-2 REPORT METHODOLOGY: Computations on page 2 for each detention pond were performed based on the total tributary drainage area of the project in the pre-development and post-development conditions. Relative pre-development peak discharge rates ("Q") for the 2 , 5, 10 , 25 , 50 and 100-year storm events were determined. The Rational Method was utilized to compute the estimated peak pre-development discharge rates. The equation that represents the Rational Method is as follows: Q = CIA where ; "Q" is the peak discharge rate in cubic feet per second, "C" is the run-off coefficient in the pre-development condition, "I" is the storm intensity in inches per hour, and "A" is the area of the drainage basin in acres. Computations on page 3 are based on the post-development conditions with weighted run- off coefficients according to the relative amounts of pervious and impervious surface area), and a minimum time of concentration of 10 minutes were used to determine the relative post-development peak discharge rates ("Q) corresponding to the 2, 5 , 10 , 25 , 50 and 100-year post-development storm events. The Rational Method was utilized again to compute the anticipated post-development peak discharge rates. Comparison of the peak pre-development discharge rates to the post-development discharge rates is included on page 3 of this report to aid the designer in establishing a preliminary "target" for the detention pond volumes required. This preliminary estimate as determined is the volume difference generated between the pre-development and post- development hydrographs. (See pages 14-16 for graphical comparison of pre- development and post-development hydrographs.) Please note that the post-development hydrographs shown on these same graphs assume no detention and reflects the "worst- case" scenario in that all run-off is assumed to "free-flow " from the site without the benefit of detention. Pages 4 and 5 provide information concerning the post-development run-off that is not routed through the detention facilities and allowed to "free-flow" from the site as well as the post-development run-off that is routed through the stormwater detention facilities . Pages 6 & 7 and pages 8 & 9 are tabulations of the pre-development and the post- development hydrographs respectively and are based on the computations performed on page 1 and page 2. PAG E TX-3 Pages 9 & 10 are tabulations of the post-development hydrograph for "free-flow" from the project site . Having derived the preliminary volume requirements and "allowable peak" discharge rates , it is now possible to design the final detention facilities and outlet control structures. Page 17 presents a data tabulation and a depth versus volume graph for the proposed detention facility. Page 18 supplies a tabulation and a rating curve for the proposed outlet control structure. Page 19 presents a tabulation of the relationship between discharge from the detention facilities and the quantity 2S/t-(). Also presented is a Storage Indication Curve for the detention facilities based on the aforementioned physical characteristics of the detention ponds, storage volumes , inflow hydrographs , and rating curves for the outlet structures. The storage indication curves as shown on page 19 is a tool to aid in the solution of the equation presented as follows: 2s1 (I 1 + I 2) + (----------------01) dt 2s2 (-----------------+ ()2) dt Pages 20 -37 present simulations of the 2 , 5, 10 , 25 , 50 , and 100 year storm events . The first and second pages of each storm simulation represents the tabulated data for the storm event . The maximum depth achieved in the detention pond during each simulation is shown as is the time at which the maximum depth occurs from the onset of the storm event . The calculated peak discharge rate corresponding to the maximum depth achieved over the duration of the storm period is also included. Additionally, the maximum water surface elevation is provided as well as the maximum metered discharge volume from the outlet of the detention pond. The second page of each storm simulation provides the pre-development, the post- development (with no detention), the post-development (routed through the detention pond) and the post-development "free-flow" hydrographs . Pages 27 through pages 32 provide total inflow/outflow hydro graphs for the 2 , 5, 10 , 25 , 50 and 100-year pre-development and post-development storm events for direct comparison of pre and post development stormwater run-off conditions . Total post-development peak discharge rates from the detention pond outlet control structure and project site are kept at or less than the pre-development peak discharge rates due to the incorporation of the proposed detention facilities . Subsequent peak post- de velopment discharge velocities are projected to be non-erosive . PA GE TX-4 DRAINAGE REPORT FOR SOUTHWEST BUSINESS CENTER LOTS 7 & 8 , BLOCK TWO EDEL WEISS BUSINESS CENTER 2.43 A CRES COLLEGESTATION,BRAZOSCOUNTY ,TEXAS OCTOBER, 2003 DE I ENTION POND # 1 PREPARED BY: L. A. BERRY, P .E . 1811 RO SE STREET BRYAN , TEXAS 77802 TELEPHONE : (210) 884-0065 SOlJTHWEST BUSINESS CENTER -PAGE I Determine Total Pre-Development Peak Storm Water Discharge Rates Tributary Area ("A"): 0.19 Acres Pervious Area: 0.19 Acres Impervious Area: 0.00 Acres Run-Off Coefficient ("Cwt"): 0.30 Time Of Concentration (''T/c"): Woodlands: Low Elevation: High Elevation: Distance (Feet): Slope (% Grade): Velocity ("Vw"): Time: Pastures: Low Elevation: High Elevation: Distance (Feet): Slope (% Grade): Velocity ("Vp"): Time: Pavements: Low Elevation: High Elevation: Distance (Feet): Slope (% Grade): Velocity ("Vpave"): Time: Total Travel Time: Rounded Travel Time: Hourly Intensity Rates ("I"): 2-Year: 6.33 5-Year: 7.69 10-Year: 8.63 25-Year: 9.86 SO-Year: 11.15 100-Year: 12.60 Peak Discharge Rate ("Q"): 2-Year: 0.36 5-Year: 0.44 10-Year: 0.49 25-Year: 0.56 50-Year: 0.64 100-Year: 0.72 c = 0.30 c = 0.90 0.00 0.00 0.00 0.00 0.00 Feet / Second 0.00 Minutes 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Feet I Second Minutes 0.00 Feet / Second 0.00 Minutes 0.00 Minutes 10 Minutes (Minimum Allowed ) Inches/ Hour Inches / Hour Inches / Hour Inches I Hour Inches / Hour Inches / Hour Cubic Feet / Second Cubic Feet/ Second Cubic Feet / Second Cubic Feet/ Second Cubic Feet/ Second Cubic Feet/ Second SOlJTHWEST BUSINESS CENTER -PAGE 2 Determine Post-development Peak 'Storm Water Discharge (No Detention) Tributary Area ("A"): 0.62 Acres 0.12 Perv ious Area: 0.16 Acres Impervious Area: 0.46 Acres Run-Off Coefficient ("Cwt"): 0.7S Time Of Concentration ('T/c"): 10 Minutes Hourly Intensity Rates ("!"): 2-Year: 6.33 S-Year: 7.69 10-Year: 8.63 2S-Year: 9.86 SO -Year: 11.lS 100-Year: 12.60 Peak Discharge Rate ("Q"): 2-Year: 2.92 S-Year: 3.SS 10-Year: 3.99 2S-Year: 4.S6 SO-Year: S.lS 100-Year: S.82 Comparison Of Predevelopment And Post-development Peak Discharge Rates c = 0.30 c = 0.90 Inches / Hour Inches / Hour Inches / Hour Inches / Hour Inches/ Hour Inches/ Hour Cubic Feet/ Second Cubic Feet/ Second Cubic Feet / Second Cubic Feet / Second Cubic Feet/ Second Cubic Feet/ Second Predevelopment Post-Development Increase In Peak 2-Year: 0.36 Ft3/sec S-Year: 0.44 Ft3/sec 10-Year: 0.49 Ft3/sec 2S -Year: O.S6 Ft3/sec SO-Year: 0.64 Ft3/sec 100-Year: 0. 72 Ft3/sec Preliminary Determination Of Detention Pond Volume 2.92 Ft3/sec 3.SS Ft3/sec 3.99 Ft3/sec 4.S6 Ft3/sec S.lS Ft3/sec S.82 Ft3/sec 2-Year Storm Event Requires Approximately: S-Year Storm Event Requires Approximately: 10-Year Storm Event Requires Approximately: 2S-Year Storm Event Requires Approximately: SO-Year Storm Event Requires Approximately : 100-Year Storm Event Requires Approximately: 2.S6 Ft3/sec 3.12 Ft3/sec 3.SO Ft3/sec 3.99 Ft3/sec 4.Sl Ft3/sec S.10 Ft3/sec 781 Cubic 9SO Cubic 1,066 Cubic 1,217 Cubic 1,376 Cubic l,SSS Cubic Time Base (Tb)= 3.00 x T/c And Time Of Concentration (T/c) Of 10 Minutes. SOUTHWEST BUSINESS CENTER -PAGE 3 % Increase 711 711 711 711 711 711 Feet Feet Feet Feet Feet Feet Determine Post-Development "Free-Flow" Peak Storm Water Discharge Tributary Area ("A"): 0.00 Acres Pervious Area: 0.00 Acres c = 0.30 Impervious Area: 0.00 Acres c = 0.90 Run-Off Coefficient ("Cwt"): 0.00 Time Of Concentration (''T/c"): 10 Minutes (Min.) Hourly Intensity Rates ("I"): 2-Year: 6.33 Inches / Hour 5-Year: 7.69 Inches / Hour 10-Year: 8.63 Inches / Hour 25-Year: 9.86 Inches J Hour SO-Year: 11.15 Inches / Hour 100-Year: 12.60 Inches J Hour Peak Discharge Rate ("Q"): 2-Year: 0.00 Cubic Feet I Second 5-Year : 0.00 Cubic Feet J Second 10-Year: 0.00 Cubic Feet / Second 25-Year: 0.00 Cubic Feet / Second SO-Year: 0.00 Cubic Feet / Second 100-Year: 0.00 Cubic Feet/ Second NOTE: THIS SHEET IS NOT USED SINCE THERE IS NO FREE-FLOW FROM THIS SUBBASIN . SO lfTHWEST BUSIN ESS CE NTE R -PAGE 4 Determine Post-Development Flow Into Detention Pond Tributary Area ("A"): 0.62 Acres Pervious Area: 0.16 Acres Impervious Area : 0.46 Acres Run-Off Coefficient ("Cwt"): 0.75 Time Of Concentration (''T/c"): 10 Minutes Hourly Intensity Rates ("I"): 2-Year: 6.33 5-Year: 7.69 10-Year: 8.63 25-Year: 9.86 SO-Year: 11.15 100-Year: 12.60 Peak Discharge Rate ("Q"): 2-Year: 2.92 5-Year: 3.55 10-Year: 3.99 25-Year: 4.56 50-Year : 5.15 100-Year: 5.82 c = 0.30 c = 0.90 Inches / Hour Inches / Hour Inches / Hour Inches / Hour Inches / Hour Inches / Hour Cubic Feet / Second Cubic Feet/ Second Cubic Feet/ Second Cubic Feet / Second Cubic Feet/ Second Cubic Feet / Second SOlJTHWEST BUSINESS CENTER -PAGE 5 Pre-Development Inflow Hydrograph Ordinates (Cubic Feet per Second) Time 2-Year 5-Year 10-Year 25-Year SO-Year 100-Year (Minutes) Storm Storm Storm Storm Storm Storm 0 0.00 0.00 0.00 0.00 0.00 0.00 1 0.04 0.04 0.05 0.06 0.06 0.07 2 0.07 0.09 0.10 0.11 0.13 0.14 3 0.11 0.13 0.15 0.17 0.19 0.22 4 0.14 0.18 0.20 0.22 0.25 0.29 5 0.18 0.22 0.25 0.28 0.32 0.36 6 0.22 0.26 0.30 0.34 0.38 0.43 7 0.25 0.31 0.34 0.39 0.44 0.50 8 0.29 0.35 0.39 0.45 0.51 0.57 9 0.32 0.39 0.44 0.51 0.57 0.65 10 0.36 0.44 0.49 0.56 0.64 0.72 11 0.34 0.42 0.47 0.53 0.60 0.68 12 0.32 0.39 0.44 0.51 0.57 0.65 13 0.31 0.37 0.42 0.48 0.54 0.61 14 0.29 0.35 0.39 0.45 0.51 0.57 15 0.27 0.33 0.37 0.42 0.48 0.54 16 0.25 0.31 0.34 0.39 0.44 0.50 17 0.23 0.29 0.32 0.37 0.41 0.47 18 0.22 0.26 0.30 0.34 0.38 0.43 19 0.20 0.24 0.27 0.31 0.35 0.40 20 0.18 0.22 0.25 0.28 0.32 0.36 21 0.16 0.20 0.22 0.25 0.29 0.32 22 0.14 0.18 0.20 0.22 0.25 0.29 23 0.13 0.15 0.17 0.20 0.22 0.25 24 0.11 0.13 0.15 0.17 0.19 0.22 25 0.09 0.11 0.12 0.14 0.16 0.18 26 0.07 0.09 0.10 0.11 0.13 0.14 27 0.05 0.07 0.07 0.08 0.10 0.11 28 0.04 0.04 0.05 0.06 0.06 0.07 29 0.02 0.02 0.02 0.03 0.03 0.04 30 0.00 0.00 0.00 0.00 0.00 0.00 31 0.00 0.00 0.00 0.00 0.00 0.00 32 0.00 0.00 0.00 0.00 0.00 0.00 33 0.00 0.00 0.00 0.00 0.00 0.00 34 0.00 0.00 0.00 0.00 0.00 0.00 35 0.00 0.00 0.00 0.00 0.00 0.00 36 0.00 0.00 0.00 0.00 0.00 0.00 37 0.00 0.00 0.00 0.00 0.00 0.00 38 0.00 0.00 0.00 0.00 0.00 0.00 39 0.00 0.00 0.00 0.00 0.00 0.00 40 0.00 0.00 0.00 0.00 0.00 0.00 41 0.00 0.00 0.00 0.00 0.00 0.00 42 0.00 0.00 0.00 0.00 0.00 0.00 43 0.00 0.00 0.00 0.00 0.00 0.00 44 0.00 0.00 0.00 0.00 0.00 0.00 45 0.00 0.00 0.00 0.00 0.00 0.00 SOITTHWEST BUSINESS CENTER -PAGE 6 ~ ~ ~ "' c !!l z m fJ) fJ) () m ~ m ~ ji? Cl m " O'llJ11J11J11.Tll.TlV11.TllJ11J11.Tl~~~~ 01.0CO ...._,O'll.Tl ~VJ N .,_. 0 l.O CO...._, O'I 9 9 9 9 0 9 0 9 0 9 9 0 9 9 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 0 9 9 9 0 9 9 0 9 0 9 9 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 9 9 9 0 9 9 9 0 9 9 0 0 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 9 9 9 0 0 9 0 0 9 !=' 0 9 9 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 099909909990009 000000000000000 000000000000000 009000000990909 000000000000000 000000000000000 Post-Development Inflow Hydrograph Ordinates (Cubic Feet per Second) Time 2-Year 5-Year 10-Year 25-Year SO-Year 100-Year (Minutes) Storm Storm Storm Storm Storm Storm 0 0.00 0.00 0.00 0.00 0.00 0.00 1 0.29 0.36 0.40 0.46 0.52 0.58 2 0.58 0.71 0.80 0.91 1.03 1.16 3 0.88 1.07 1.20 1.37 1.55 1.75 4 1.17 1.42 1.60 1.82 2.06 2.33 5 1.46 1.78 1.99 2.28 2.58 2.91 6 1.75 2.13 2.39 2.73 3.09 3.49 7 2.05 2.49 2.79 3.19 3.61 4.07 8 2.34 2.84 3.19 3.64 4.12 4.66 9 2.63 3.20 3.59 4.10 4.64 5.24 10 2.92 3.55 3.99 4.56 5.15 5.82 11 2.78 3.38 3.79 4.33 4.89 5.53 12 2.63 3.20 3.59 4.10 4.64 5.24 13 2.48 3.02 3.39 3.87 4.38 4.95 14 2.34 2.84 3.19 3.64 4.12 4.66 15 2.19 2.67 2.99 3.42 3.86 4.37 16 2.05 2.49 2.79 3.19 3.61 4.07 17 1.90 2.31 2.59 2.96 3.35 3.78 18 1.75 2.13 2.39 2.73 3.09 3.49 19 1.61 1.95 2.19 2.51 2.83 3.20 20 1.46 1.78 1.99 2.28 2.58 2.91 21 1.32 1.60 1.80 2.05 2.32 2.62 22 1.17 1.42 1.60 1.82 2.06 2.33 23 1.02 1.24 1.40 1.59 1.80 2.04 24 0.88 1.07 1.20 1.37 1.55 1.75 25 0.73 0.89 1.00 1.14 1.29 1.46 26 0.58 0.71 0.80 0.91 1.03 1.16 27 0.44 0.53 0.60 0.68 0.77 0.87 28 0.29 0.36 0.40 0.46 0.52 0.58 29 0.15 0.18 0.20 0.23 0.26 0.29 30 0.00 0.00 0.00 0.00 0.00 0.00 31 0.00 0.00 0.00 0.00 0.00 0.00 32 0.00 0.00 0.00 0.00 0.00 0.00 33 0.00 0.00 0.00 0.00 0.00 0.00 34 0.00 0.00 0.00 0.00 0.00 0.00 35 0.00 0.00 0.00 0.00 0.00 0.00 36 0.00 0.00 0.00 0.00 0.00 0.00 37 0.00 0.00 0.00 0.00 0.00 0.00 38 0.00 0.00 0.00 0.00 0.00 0.00 39 0.00 0.00 0.00 0.00 0.00 0.00 40 0.00 0.00 0.00 0.00 0.00 0.00 41 0.00 0.00 0.00 0.00 0.00 0.00 42 0.00 0.00 0.00 0.00 0.00 0.00 43 0.00 0.00 0.00 0.00 0.00 0.00 44 0.00 0.00 0.00 0.00 0.00 0.00 45 0.00 0.00 0.00 0.00 0.00 0.00 SOUTHWEST BUSINESS CEITTER -PAGE 8 "' 0 ~ ::;; m ~ "' c !!l z m "' "' (') m ~ m ~ ~ Gl m "' °' U1 U1 U1 U1 U1 U1 U1 I.Tl I.Tl I.Tl .i:. .i:. .i:. .i:. Ol.OCX>-...J0\1.T1.i:.WN..,...Ol.OCX>-...JO\ 0 9 9 9 0 0 9 9 9 9 9 !=> 9 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 9 9 0 9 9 9 9 0 9 !=> 9 9 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 9 9 9 9 9 0 9 9 9 9 0 0 9 9 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 9 9 9 0 9 9 9 9 9 0 0 0 9 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 009990999900999 000000000000000 000000000000000 099909999900099 000000000000000 000000000000000 Post-Development "Free-Flow" Inflow Hydrograph Ordinates (Cubic Feet per Second) Time 2-Year 5-Year 10-Year 25-Year 50-Year 100-Year (Minutes) Storm Storm Storm Storm Storm Storm 0 0.00 0.00 0.00 0.00 0.00 0.00 1 0.00 0.00 0.00 0.00 0.00 0.00 2 0.00 0.00 0.00 0.00 0.00 0.00 3 0.00 0.00 0.00 0.00 0.00 0.00 4 0.00 0.00 0.00 0.00 0.00 0.00 5 0.00 0.00 0.00 0.00 0.00 0.00 6 0.00 0.00 0.00 0.00 0.00 0.00 7 0.00 0.00 0.00 0.00 0.00 0.00 8 0.00 0.00 0.00 0.00 0.00 0.00 9 0.00 0.00 0.00 0.00 0.00 0.00 10 0.00 0.00 0.00 0.00 0.00 0.00 11 0.00 0.00 0.00 0.00 0.00 0.00 12 0.00 0.00 0.00 0.00 0.00 0.00 13 0.00 0.00 0.00 0.00 0.00 0.00 14 0.00 0.00 0.00 0.00 0.00 0.00 15 0.00 0.00 0.00 0.00 0.00 0.00 16 0.00 0.00 0.00 0.00 0.00 0.00 17 0.00 0.00 0.00 0.00 0.00 0.00 18 0.00 0.00 0.00 0.00 0.00 0.00 19 0.00 0.00 0.00 0.00 0.00 0.00 20 0.00 0.00 0.00 0.00 0.00 0.00 21 0.00 0.00 0.00 0.00 0.00 0.00 22 0.00 0.00 0.00 0.00 0.00 0.00 23 0.00 0.00 0.00 0.00 0.00 0.00 24 0.00 0.00 0.00 0.00 0.00 0.00 25 0.00 0.00 0.00 0.00 0.00 0.00 26 0.00 0.00 0.00 0.00 0.00 0.00 27 0.00 0.00 0.00 0.00 0.00 0.00 28 0.00 0.00 0.00 0.00 0.00 0.00 29 0.00 0.00 0.00 0.00 0.00 0.00 30 0.00 0.00 0.00 0.00 0.00 0.00 31 0.00 0.00 0.00 0.00 0.00 0.00 32 0.00 0.00 0.00 0.00 0.00 0.00 33 0.00 0.00 0.00 0.00 0.00 0.00 34 0.00 0.00 0.00 0.00 0.00 0.00 35 0.00 0.00 0.00 0.00 0.00 0.00 36 0.00 0.00 0.00 0.00 0.00 0.00 37 0.00 0.00 0.00 0.00 0.00 0.00 38 0.00 0.00 0.00 0.00 0.00 0.00 39 0.00 0.00 0.00 0.00 0.00 0.00 40 0.00 0.00 0.00 0.00 0.00 0.00 41 0.00 0.00 0.00 0.00 0.00 0.00 42 0.00 0.00 0.00 0.00 0.00 0.00 43 0.00 0.00 0.00 0.00 0.00 0.00 44 0.00 0.00 0.00 0.00 0.00 0.00 45 0.00 0.00 0.00 0.00 0.00 0.00 SOUTHWEST BUSINESS CENTER -PAGE 10 000000000000000 000000000000000 0 c) c) c) c) c) c) c) c)c) c) c) c) c) c) 000000000000000 000000000000000 0 c) 0 c) c) c) c) 0 c)c) c) c) 0 c) c) 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 c) 0 c) c) c) c) 0 c) c) c) c) 0 c) c) 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 c) c) 0 c) c) c) c) c) c) c) c) c) c) c) c) 0 0 0 0 0 0 0 000 0 0 0 0 0 0 0 0 0 0 0 0 000 0 0 0 0 0 c) 0 c) c) c) c) c) c::) c) c) 0 c) c) c) c) 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 c) 0 c) c) c) c) c) 0 c) c) c) c) c) c) c) l.Or-...OOO\OrlNM"'2'"Ll"ll.Or-...000\0 "'2'" "'2'" "'2'" "'2'" LO Ll"l Ll"l Ll"l Ll"l Ll"l Ll"l Ll"l Ll"l Lt'l l.O UJ \!) Cf. ~ ~ UJ u Vl ta z u; ::> "' ~ ~ 0 Vl Post-Development Flow Routed Through Detention Pond Inflow Hydrograph Ordinates (Cubic Feet per Second) Time 2-Year 5-Year 10-Year 25-Year 50-Year 100-Year (Minutes) Storm Storm Storm Storm Storm Storm 0 0.00 0.00 0.00 0.00 0.00 0.00 1 0.29 0.36 0.40 0.46 0.52 0.58 2 0.58 0.71 0.80 0.91 1.03 1.16 3 0.88 1.07 1.20 1.37 1.55 1.75 4 1.17 1.42 1.60 1.82 2.06 2.33 5 1.46 1.78 1.99 2.28 2.58 2.91 6 1.75 2.13 2.39 2.73 3.09 3.49 7 2.05 2.49 2.79 3.19 3.61 4.07 8 2.34 2.84 3.19 3.64 4.12 4.66 9 2.63 3.20 3.59 4.10 4.64 5.24 10 2.92 3.55 3.99 4.56 5.15 5.82 11 2.78 3.38 3.79 4.33 4.89 5.53 12 2.63 3.20 3.59 4.10 4.64 5.24 13 2.48 3.02 3.39 3.87 4.38 4.95 14 2.34 2.84 3.19 3.64 4.12 4.66 15 2.19 2.67 2.99 3.42 3.86 4.37 16 2.05 2.49 2.79 3.19 3.61 4.07 17 1.90 2.31 2.59 2.96 3.35 3.78 18 1.75 2.13 2.39 2.73 3.09 3.49 19 1.61 1.95 2.19 2.51 2.83 3.20 20 1.46 1.78 1.99 2.28 2.58 2.91 21 1.32 1.60 1.80 2.05 2.32 2.62 22 1.17 1.42 1.60 1.82 2.06 2.33 23 1.02 1.24 1.40 1.59 1.80 2.04 24 0.88 1.07 1.20 1.37 1.55 1.75 25 0.73 0.89 1.00 1.14 1.29 1.46 26 0.58 0.71 0.80 0.91 1.03 1.16 27 0.44 0.53 0.60 0.68 0.77 0.87 28 0.29 0.36 0.40 0.46 0.52 0.58 29 0.15 0.18 0.20 0.23 0.26 0.29 30 0.00 0.00 0.00 0.00 0.00 0.00 31 0.00 0.00 0.00 0.00 0.00 0.00 32 0.00 0.00 0.00 0.00 0.00 0.00 33 0.00 0.00 0.00 0.00 0.00 0.00 34 0.00 0.00 0.00 0.00 0.00 0.00 35 0.00 0.00 0.00 0.00 0.00 0.00 36 0.00 0.00 0.00 0.00 0.00 0.00 37 0.00 0.00 0.00 0.00 0.00 0.00 38 0.00 0.00 0.00 0.00 0.00 0.00 39 0.00 0.00 0.00 0.00 0.00 0.00 40 0.00 0.00 0.00 0.00 0.00 0.00 41 0.00 0.00 0.00 0.00 0.00 0.00 42 0.00 0.00 0.00 0.00 0.00 0.00 43 0.00 0.00 0.00 0.00 0.00 0.00 44 0.00 0.00 0.00 0.00 0.00 0.00 45 0.00 0.00 0.00 0.00 0.00 0.00 SOlJTHWEST BUSINESS CENTER -PAGE 12 9 9 0 9 9 9 9 9 9 0 9 9 9 0 9 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 ~ 9 9 9 9 99 9 0 0 9 9 0 0 9 9 1 0 0 0 0 00 0 0 0 0 0 0 0 0 0 ::;: 0 0 0 0 00 0 0 0 0 0 0 0 0 0 m ~ "' c !!l z m 9 9 0 9 9 0 9 9 9 9 9 9 9 9 9 V> V> 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 () m 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~ m ~ jl Gl 0 9 9 9 99 9 9 9 0 9 9 9 9 0 m t;; 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 9 9 9 9 99 9 9 9 99 9 9 9 9 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 9 9 9 0 99 9 9 9 99 9 9 9 9 0 0 0 0 00 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 00 0 0 0 0 Total Pre-Development Vs. Total Post-Development (No Detention) Peak Discharge Rates 2-Year Storm Event -2.50 ------1---+-------+-----+-----t-----f------I b ';' 2.00------jJ---+--~-+-----+-----+-----f------I e' "' £ 1.50----1---+---~'11----+----+-----f------1 Ill Q l.00----1-----+----+--------+----+-----f------I 0.00 +i=:;..._---1----+--....;;;;::::a...Jll-----+----1----~ 0 10 20 30 40 50 60 Time (Minutes) --Pre-Development Hydrograph -Total Post-Development Hydrograph Total Pre-Development Vs. Total Post-Development (No Detention) Peak Discharge Rates 5-Year Storm Event -Ill 4.00-----~---~---~---~---~------, 3.50+---------,A-------lf-----+----+-----+-----------1 3.oo------1---t-----+----+-----+----+----__, ~ 2.50 +------,1--+--~-+----+----+----f-------j cu e' 2.00 ---~-+----+-----+-----t-----f------1 "' .s: ~ 1.50------j,__-+----~---+----+-----f------1 Q 1.00 +--+---+------t-~--+----+-----+---------1 o.50~~--+----+----->1<--+----+-----f------1 0.00 ~;..._----11-----+-.....;;;::;i,,,,,._ __ ---11-----+-----1 0 10 20 30 40 50 60 Time (Minutes) --Pre-Development Hydrograph -Post-Development Outflow Hydrograph Without Detention SOITTHWEST BUSIN ESS CENTE R -PAGE 14 Total Pre-Development Vs. Total Post-Development (No Detention) Peak Discharge Rates 10-Year Storm Event 4.50--------.------.----.----.----.----------. 4.oo-----_.__---+----+----+----t------i 3.50-------+------+----+----+----t------i 'iii 3.00 ____ _,__+----+----+----t------il-------i ~ ........ cu 2.50 ------------i-----+------+----------if------+------i e' ~ 2.00---_,__-+--------+----t------il-------i ~ c i.50------+----+----+----t------il-------i i.oo---.----1-----+--~-+----t----------11------; 0.50 ~-----::71~=----r--~-r----li-----r-----1 0.00 ~--~1-----+--..... +---~1-----+-----1 0 10 20 30 40 50 Time (Minutes) --Pre-Development Hydrograph -Post-Development Outflow Hydrograph Without Detention Total Pre-Development Vs. Total Post-Development (No Detention) Peak Discharge Rates 25-Year Storm Event 5.00 4.50 4.00 3.50 ........ -t 3.00 ........ cu e' 2.50 ftl .c u Ill 2.00 i5 1.50 1.00 0.50 0.00 0 10 20 30 40 50 TimP. fMinut~) 60 60 --Pre-Development Hydrograph -Post-Development Outflow Hydrograph Without Detention SOlJTHWEST BUSINESS CENTER -PAGE 15 Total Pre-Development Vs. Total Post-Development (No Detention) Peak Discharge Rates SO-Year Storm Event WI 4.00 ____ _.___,_____, ____ _,_ ___ +------->---------<--------< 'ti -cu e' 3.00 --------#--+----~+----+-----t------i------1 IQ .c b: Q 2.00-------+------+---'0.----+------->---------<------1 0 10 20 30 40 so Time (Minutes) --Pre-Development Hydrograph -Post-Development Outflow Hydrograph Without Detention Total Pre-Development Vs. Total Post-Development (No Detention) Peak Discharge Rates 100-Year Storm Event 7.00 6.00 S.00 ....... ti -;; 4.00 Cl a.. IQ .c 3.00 u Ill 0 2.00 1.00 0.00 0 10 20 30 40 so Time (Minutes) --Pre-Development Hydrograph -Post-Development Outflow Hydrograph Without Detention SOUTHWEST BUSINESS CENTER -PAGE 16 60 60 I Detention Pond ~ Depth Vs. Volume · Elevation Contour Depth Vo lume Area (Ft2) (Ft.) (Ft3) 328 .00 0 0 .00 0 328 .50 2,362 0.50 591 329 .00 4,643 1.00 2,342 329.35 5,775 1.35 4,165 329.50 5,847 1.50 5,037 329 .85 14,963 1.85 8,678 Detention Pond Depth Vs. Volume ...... 1.20 -------+---~-+-------+------+--------i 1i u.. ~ 1.00-------+-1-----+-------+------+--------i ~ cu c 0.80 -----·~-----1---------+-----+-------l 0.00 +-----+----+-----+----+------1 0 2,000 4,000 6,000 8,000 10,000 Detention Pond Volume (Cubic Feet) SOlJTHWEST BUSINESS CE NTE R -PAGE 17 --______________ _. Rating Curve For Outlet Control Structure Weir: 1.25 Weir Length "L" (In Inches) De Vs. Volume Elevation 328 .00 328.50 329 .00 329.35 329.50 329.85 Depth (Feet) 0 .00 0.50 1.00 1.35 1.50 1.85 0.10 Weir Length "L" (In Feet) Discharge Ft3/Sec 0.00 0.11 0.32 0.50 0.59 0.81 Rating Curve For Outlet Control Structure Depth Vs. Volume 0.00 ..... -----1----...... -----11------+------1 0.00 0.20 0.40 0.60 0.80 1.00 Discharge (Cubic Feet Per Second) SOlJTHWEST BUSINESS CENTER -PAGE 18 I Storage Indication Curve -VI Depth (Feet) 0 .00 0.50 1.00 1.35 1.50 1.85 0.90 0 .80 0.70 0.60 'ti 0.50 ........ Q1 e' "' ~ ~ 0.40 Q 0.30 Storage Discharge 2s/t 2s/t+O (Ft3) (Ft3/Sec) (Ft3/Sec) (Ft3/Sec) 0 0.00 0.00 0 .00 591 0.11 19 .68 19.80 2,342 0.32 78 .06 78.38 4,165 0.50 138.83 139.33 5,037 0.59 167 .89 168.48 8,678 0 .81 289 .28 290 .09 Storage Indication Curve ~ / v / / I I I ,. I I ' I 0.20 0.10 I 0.00 0 .00 50.00 100 .00 150.00 200.00 250.00 300 .00 350 .00 2s/t+O (Cubic Feet Per Second) SOITTHWEST BUSINESS CENT ER -PAGE 19 Time Inflow (Minutes) (Ft3/Sec) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 0.00 0.29 0.58 0.88 1.17 1.46 1.75 2.05 2.34 2.63 2.92 2.78 2.63 2.48 2.34 2.19 2.05 1.90 1.75 1.61 1.46 1.32 1.17 1.02 0.88 0.73 0.58 0.44 0.29 0.15 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11+ 12 0.00 0.29 0.88 1.46 2.05 2.63 3.22 3.80 4.38 4.97 5.55 5.70 5.41 5.11 4.82 4.53 4.24 3.95 3.65 3.36 3.07 2.78 2.48 2.19 1.90 1.61 1.32 1.02 0.73 0.44 0.15 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Inflow/ Outflow Simulation 2-Year Storm Event 2s/t-O 2s/t+O Outflow Depth Elevation 0.00 0.29 1.15 2.58 4.58 7.12 10.22 13.86 18.03 22.75 28.02 33.39 38.44 43.16 47.55 51.63 55.38 58.82 61.94 64.75 67.25 69.45 71.33 72.92 74.20 75.18 75.87 76.26 76.35 76.16 75.68 75.05 74.44 73.82 73.21 72.60 72.00 71.40 70.81 70.22 69.63 69.05 68.48 67.90 67.34 66.77 0.00 0.29 1.17 2.61 4.63 7.21 10.34 14.02 18.24 23.00 28.31 33.72 38.80 43.55 47.98 52.08 55.86 59.33 62.47 65.30 67.82 70.03 71.93 73.52 74.82 75.81 76.50 76.89 76.99 76.79 76.31 75.68 75.05 74.44 73.82 73.21 72.60 72.00 71.40 70.81 70.22 69.63 69.05 68.48 67.90 67.34 (Ft3/Sec) 0.00 0.00 0.01 0.02 0.03 0.04 0.06 0.08 0.10 0.13 0.14 0.16 0.18 0.20 0.21 0.23 0.24 0.25 0.27 0.28 0.28 0.29 0.30 0.30 0.31 0.31 0.31 0.32 0.32 0.32 0.31 0.31 0.31 0.31 0.31 0.30 0.30 0.30 0.30 0.29 0.29 0.29 0.29 0.29 0.28 0.28 SOlJTHWEST BUSINESS CENTER -PAGE 20 (Feet) 0.00 0.01 0.03 0.07 0.12 0.18 0.26 0.35 0.46 0.53 0.57 0.62 0.66 0.70 0.74 0.78 0.81 0.84 0.86 0.89 0.91 0.93 0.94 0.96 0.97 0.98 0.98 0.99 0.99 0.99 0.98 0.98 0.97 0.97 0.96 0.96 0.95 0.95 0.94 0.94 0.93 0.93 0.92 0.92 0.91 0.91 328.00 328.01 328.03 328.07 328.12 328.18 328.26 328.35 328.46 328.53 328.57 328.62 328.66 328.70 328.74 328.78 328.81 328.84 328.86 328.89 328.91 328.93 328.94 328.96 328.97 328.98 328.98 328.99 328.99 328.99 328.98 328.98 328.97 328.97 328.96 328.96 328.95 328.95 328.94 328.94 328.93 328.93 328.92 328.92 328.91 328.91 46 0.00 0.00 66.21 66.77 0.28 0.90 328.90 47 0.00 0.00 65.65 66.21 0.28 0.90 328.90 48 0.00 0.00 65.10 65.65 0.28 0.89 328.89 49 0.00 0.00 64.55 65.10 0.27 0.89 328.89 50 0.00 0.00 64.01 64.55 0.27 0.88 328.88 51 0.00 0.00 63.47 64.01 0.27 0.88 328.88 52 0.00 0.00 62.93 63.47 0.27 0.87 328.87 53 0.00 0.00 62.39 62.93 0.27 0.87 328.87 54 0.00 0.00 61.86 62.39 0.26 0.86 328.86 55 0.00 0.00 61.34 61.86 0.26 0.86 328.86 56 0.00 0.00 60.82 61.34 0.26 0.85 328.85 57 0.00 0.00 60.30 60.82 0.26 0.85 328.85 58 0.00 0.00 59.78 60.30 0.26 0.85 328.85 59 0.00 0.00 59.27 59.78 0.26 0.84 328.84 60 0.00 0.00 58.76 59.27 0.25 0.84 328.84 SOlJTHWEST BUSINESS CENTER -PAGE 21 Inflow/Outflow Simulation 2 -Year Storm Event 3.50 3.00 2.50 In' 2.00 't ...... CIJ e' "' .I:. u Ill Q 1.50 1.00 0 .50 0.00 . ' 'l ' ' ' \ • . ' l • \ I ' I • \ ' ' ' I ' t • ' 'l I \ I ' ' • \ l , . • ' ' \ \ t ' • ' • • ' . • ' , ' • , 'l l • ' • ' • • . \ • • ~ ~ -' ~', 0 10 20 30 40 Time (Minutes) ---Pre-Development Hydrograph Post-Development Outflow Hydrograph Without Detention --•Post-Develop ment Outflow Wi th Detention ----Post-Development "Free-Row" SOlJTHWEST BUSINESS CENTER -PAGE 22 50 60 Time Inflow (Minutes) (Ft3/Sec) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 0.00 0.36 0.71 1.07 1.42 1.78 2.13 2.49 2.84 3.20 3.55 3.38 3.20 3.02 2.84 2.67 2.49 2.31 2.13 1.95 1.78 1.60 1.42 1.24 1.07 0.89 0.71 0.53 0.36 0.18 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11+ 12 0.00 0.36 1.07 1.78 2.49 3.20 3.91 4.62 5.33 6.04 6.75 6.93 6.58 6.22 5.86 5.51 5.15 4.80 4.44 4.09 3.73 3.38 3.02 2.67 2.31 1.95 1.60 1.24 0.89 0.53 0.18 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Inflow I Outflow Simulation 5-Year Storm Event 2s/t-O 2s/t+O Outflow Depth Elevation 0.00 0.35 1.40 3.14 5.56 8.66 12.43 16.85 21.94 27.70 34.12 40.67 46.82 52.58 57.94 62.91 67.50 71.69 75.51 78.95 82.01 84.70 87.02 88.98 90.57 91.79 92.66 93.17 93.32 93.12 92.56 91.83 91.11 90.39 89.67 88.96 88.26 87.55 86.86 86.16 85.47 84.79 84.11 83.43 82.75 82.08 0.00 0.36 1.42 3.18 5.63 8.76 12.57 17.05 22.18 27.98 34.45 41.05 47.24 53.04 58.44 63.45 68.07 72.29 76.14 79.60 82.68 85.39 87.72 89.69 91.29 92.52 93.39 93.90 94.06 93.85 93.29 92.56 91.83 91.11 90.39 89.67 88.96 88.26 87.55 86.86 86.16 85.47 84.79 84.11 83.43 82.75 (Ft3/Sec) 0.00 0.00 0.01 0.02 0.03 0.05 0.07 0.10 0.12 0.14 0.17 0.19 0.21 0.23 0.25 0.27 0.28 0.30 0.31 0.33 0.33 0.34 0.35 0.36 0.36 0.36 0.37 0.37 0.37 0.37 0.37 0.36 0.36 0.36 0.36 0.36 0.35 0.35 0.35 0.35 0.34 0.34 0.34 0.34 0.34 0.33 SOUTHWEST BUSINESS CENTER -PAGE 23 (Feet) 0.00 0.01 0.04 0.08 0.14 0.22 0.32 0.43 0.52 0.57 0.63 0.68 0.73 0.78 0.83 0.87 0.91 0.95 0.98 1.01 1.02 1.04 1.05 1.06 1.07 1.08 1.09 1.09 1.09 1.09 1.09 1.08 1.08 1.07 1.07 1.06 1.06 1.06 1.05 1.05 1.04 1.04 1.04 1.03 1.03 1.03 328.00 328.01 328.04 328.08 328.14 328.22 328.32 328.43 328.52 328.57 328.63 328.68 328.73 328.78 328.83 328.87 328.91 328.95 328.98 329.01 329.02 329.04 329.05 329.06 329.07 329.08 329.09 329.09 329.09 329.09 329.09 329.08 329.08 329.07 329.07 329.06 329.06 329.06 329.05 329.05 329.04 329.04 329.04 329.03 329.03 329.03 ---------I 46 0.00 0.00 81.42 82.08 0.33 1.02 329.02 47 0.00 0.00 80.76 81.42 0.33 1.02 329.02 48 0.00 0.00 80.10 80.76 0.33 1.01 329.01 49 0.00 0.00 79.45 80.10 0.33 1.01 329.01 50 0.00 0.00 78.80 79.45 0.32 1.01 329.01 51 0.00 0.00 78.15 78.80 0.32 1.00 329.00 52 0.00 0.00 77.51 78.15 0.32 1.00 329.00 53 0.00 0.00 76.87 77.51 0.32 0.99 328.99 54 0.00 0.00 76.24 76.87 0.32 0.99 328.99 55 0.00 0.00 75.61 76.24 0.31 0.98 328.98 56 0.00 0.00 74.99 75.61 0.31 0.98 328.98 57 0.00 0.00 74.37 74.99 0.31 0.97 328.97 58 0.00 0.00 73.76 74.37 0.31 0.97 328.97 59 0.00 0.00 73.15 73.76 0.31 0.96 328.96 60 0.00 0.00 72.54 73.15 0.30 0.96 328.96 SOUTHWEST BUSINESS CENTER -PAGE 24 Inflow/Outflow Simulation 5-Year Storm Event 4 .00 3.50 3.00 2.50 -b .......... QJ ~ 2 .00 IQ .c ~ Q 1.50 1.00 0 .5 0 0 .00 . , . \ ' ' I ' I ' • " ' ' I ' I ' • ' ' ' . ' ' ' • \ I ' I ' I ' I \ ' ' I I ' I ' • . I \ I ' • ' ' ' I ' I ' I ' ' ' I ' I ' I ' ~ [>< I . ' ~· 0 10 20 30 4 0 T ime {Minutes) ---Pre-Development Hydrograph Post-Development Outflow Hyd rograph Without Detention ---Post-Development Outflow With Detention -- -- - -Post-Development "Free-Row" SOlJTHWEST BUSINESS CENTER -PAGE 25 50 60 Time Inflow (Minutes) (Ft3/Sec) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 0.00 0.40 0.80 1.20 1.60 1.99 2.39 2 .79 3.19 3.59 3.99 3.79 3.59 3.39 3 .19 2 .99 2 .79 2 .59 2.39 2 .19 1.99 1.80 1.60 1.40 1.20 1.00 0.80 0.60 0.40 0.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11+ 12 0.00 0.40 1.20 1.99 2 .79 3.59 4 .39 5.19 5.98 6 .78 7.58 7.78 7.38 6 .98 6 .58 6 .18 5.78 5.39 4 .99 4.59 4 .19 3.79 3.39 2.99 2.59 2.19 1.80 1.40 1.00 0.60 0.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Inflow / Outflow Simulation 10-Year Storm Event 2s/t-O 2s/t+O Outflow Depth Elevation 0.00 0.00 0.39 0.40 1.57 1.59 3.53 3.57 6 .25 6 .32 9.72 9.84 13.95 14 .11 18 .92 19.14 24 .64 24.90 31 .11 31 .42 38 .33 38 .69 45 .69 46 .10 52 .61 53.07 59 .08 59 .59 65 .11 65.66 70 .70 71.29 75 .85 76.48 80 .58 81.24 84 .88 85 .56 88 .76 89.46 92 .21 92.94 95.25 96 .00 97.88 98.64 100.09 100.87 101 .90 102.69 103.29 104 .09 104 .29 105 .09 104.88 105.68 105.06 105 .87 104.86 105 .66 104.25 105 .06 103 .45 104 .25 102.66 103.45 101.87 102.66 101 .09 101 .87 100 .31 101 .09 99 .53 100 .31 98 .76 99 .53 98.00 98.76 97 .24 98 .00 96 .48 97.24 95.73 96.48 94 .98 95 .73 94.24 94.98 93 .50 94.24 92.77 93.50 (Ft3/Sec) 0.00 0.00 0.01 0.02 0.04 0.06 0.08 0.11 0.13 0.15 0.18 0.21 0 .23 0 .25 0.28 0.30 0 .31 0.33 0.34 0.35 0.37 0.37 0.38 0.39 0.39 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.40 0.39 0.39 0.39 0.39 0.39 0.38 0.38 0.38 0.38 0.37 0.37 0.37 0.37 SOlJTHWEST BUSIN ESS CENTER -PAG E 26 (Feet) 0.00 0.01 0.04 0.09 0.16 0.25 0.36 0.48 0.54 0.60 0.66 0.72 0.78 0.84 0.89 0.94 0.98 1.02 1.04 1.06 1.08 1.10 1.12 1.13 1.14 1.15 1.15 1.16 1.16 1.16 1.15 1.15 1.14 1.14 1.13 1.13 1.13 1.12 1.12 1.11 1.11 1.10 1.10 1.10 1.09 1.09 328 .00 328 .01 328 .04 328 .09 328 .16 328 .25 328 .36 328 .48 328 .54 328 .60 328 .66 328 .72 328 .78 328 .84 328 .89 328 .94 328 .98 329 .02 329 .04 329 .06 329 .08 329 .10 329 .12 329 .13 329 .14 329 .15 329 .15 329 .16 329 .16 329 .16 329 .15 329 .15 329 .14 329.14 329 .13 329 .13 329 .13 329 .12 329 .12 329.11 329 .11 329 .10 329 .10 329 .10 329 .09 329 .09 46 0.00 0.00 92.04 92.77 0.36 1.08 329.08 47 0.00 0.00 91.31 92.04 0.36 1.08 329.08 48 0.00 0.00 90.59 91.31 0.36 1.07 329.07 49 0.00 0.00 89.88 90.59 0.36 1.07 329.07 50 0.00 0.00 89.16 89.88 0.36 1.07 329.07 51 0.00 0.00 88.46 89.16 0.35 1.06 329.06 52 0.00 0.00 87.75 88.46 0.35 1.06 329.06 53 0.00 0.00 87.05 87.75 0.35 1.05 329.05 54 0.00 0.00 86.36 87.05 0.35 1.05 329.05 55 0.00 0.00 85.67 86.36 0.35 1.05 329.05 56 0.00 0.00 84.98 85.67 0.34 1.04 329.04 57 0.00 0.00 84.30 84.98 0.34 1.04 329.04 58 0.00 0.00 83.62 84.30 0.34 1.03 329.03 59 0.00 0.00 82.94 83.62 0.34 1.03 329.03 60 0.00 0.00 82.27 82.94 0.34 1.03 329.03 SOLITTiWEST BUSINESS CENTER -PAGE 27 Inflow/Outflow Simulation 10-Year Storm Event 4 .50 4.00 3.50 3.00 -~ 2.50 -cu ei "' .c ~ Q 2.00 1.50 1.00 0.50 0.00 I t I \ • ' I \ -. -i • ' • ' I ' I ' ~ I ' I ' I ' , ' . ~ I ' I l • ' I ' : I ' • ' I ' I \ : . I ' ' ' I ' I ' . ' ' I ' I ' I ' . b C>< . ' ~' 0 10 20 30 40 Time (Minutes) ---Pre-Development Hydrograph Post-Development Outflow Hydrograph Without Detention ---Post-Development Outflow With Detention • • • • • ·Post-Development "Free-Row" SOUTHWEST BUSINESS CE NTER -PAGE 28 so 60 Time Inflow (Minutes) (Ft3/Sec) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 0 .00 0.46 0 .91 1.37 1 .82 2 .28 2.73 3 .19 3 .64 4 .10 4 .56 4 .33 4 .10 3 .87 3 .64 3 .42 3 .19 2 .96 2 .73 2 .51 2 .28 2 .05 1 .82 1.59 1 .37 1.14 0 .91 0 .68 0.46 0 .23 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 11+ 12 0 .00 0.46 1 .37 2 .28 3 .19 4 .10 5 .01 5 .92 6 .83 7 .75 8 .66 8 .88 8 .43 7 .97 7 .52 7 .06 6.61 6 .15 5 .70 5 .24 4 .78 4 .33 3 .87 3 .42 2 .96 2 .51 2 .05 1 .59 1 .14 0 .68 0 .23 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0.00 0 .00 0 .00 Inflow/ Outflow Simulation 25-Year Storm Event 2s/t-O 2s/t+O Outflow Depth Elevation 0 .00 0.00 0.45 0.46 1 .80 1 .82 4 .03 4 .07 7 .13 7 .22 11 .11 11.23 15.93 16.12 21 .61 21 .85 28 .16 28.45 35 .56 35.90 43 .82 44 .22 52 .24 52.70 60 .15 60.67 67 .55 68 .12 74 .45 75 .07 80 .85 81 .51 86 .76 87 .46 92.18 92.91 97 .12 97 .88 101 .57 102.36 105.54 106.35 109.04 109.87 112.06 112.91 114.61 115.48 116.69 117.57 118.31 119.20 119.47 120.36 120.16 121.06 120.40 121 .30 120.19 121 .08 119.52 120.41 118.63 119.52 117.74 118.63 116 .86 117.74 115.99 116.86 115.12 115.99 114.26 115.12 113.40 114.26 112.55 113.40 111 .70 112.55 110.86 111 .70 110.02 110.86 109.18 110.02 108.36 109.18 107.53 108.36 106.72 107.53 (Ft3/Sec) 0 .00 0 .00 0 .01 0 .02 0 .04 0 .06 0 .09 0 .12 0 .14 0 .17 0 .20 0.23 0 .26 0 .29 0 .31 0 .33 0.35 0 .37 0 .38 0 .39 0.41 0.42 0.43 0.43 0 .44 0 .44 0.45 0.45 0.45 0.45 0.45 0 .44 0 .44 0 .44 0 .44 0 .43 0.43 0.43 0.43 0.42 0 .42 0.42 0.42 0.41 0 .41 0 .41 SOUTHWEST BUSINESS CENTER -PAGE 29 (Feet) 0 .00 0.01 0 .05 0 .10 0 .18 0 .28 0 .41 0 .52 0 .57 0 .64 0 .71 0 .78 0 .85 0 .91 0 .97 1 .02 1 .05 1 .08 1 .11 1 .14 1 .16 1 .18 1 .20 1 .21 1 .23 1 .23 1 .24 1 .25 1 .25 1 .25 1 .24 1 .24 1.23 1 .23 1 .22 1 .22 1 .21 1 .21 1 .20 1 .20 1 .19 1 .19 1 .18 1.18 1 .17 1 .17 328 .00 328.01 328.05 328.10 328 .18 328.28 328 .41 328.52 328 .57 328 .64 328 .71 328.78 328.85 328.91 328 .97 329.02 329 .05 329.08 329.11 329 .14 329.16 329.18 329 .20 329.21 329.23 329.23 329 .24 329 .25 329.25 329.25 329.24 329.24 329.23 329.23 329.22 329.22 329.21 329.21 329.20 329.20 329.19 329.19 329 .18 329.18 329.17 329.17 46 0 .00 0 .00 105 .90 106 .72 0 .41 1 .16 329 .16 47 0 .00 0 .00 105 .09 105.90 0.40 1 .16 329 .16 48 0 .00 0 .00 104 .29 105.09 0.40 1 .15 329 .15 49 0 .00 0 .00 103 .49 104 .29 0.40 1.15 329.15 50 0.00 0 .00 102.70 103 .49 0.40 1 .14 329 .14 51 0 .00 0 .00 101 .91 102 .70 0 .39 1 .14 329 .14 52 0 .00 0 .00 101 .13 101 .91 0.39 1 .14 329 .14 53 0.00 0 .00 100 .35 101.13 0.39 1 .13 329 .13 54 0.00 0 .00 99.57 100 .35 0 .39 1.13 329.13 55 0 .00 0 .00 98 .80 99 .57 0 .39 1 .12 329.12 56 0.00 0 .00 98 .03 98.80 0 .38 1 .12 329 .12 57 0.00 0 .00 97 .27 98.03 0 .38 1 .11 329 .11 58 0 .00 0 .00 96.52 97 .27 0 .38 1 .11 329 .11 59 0.00 0 .00 95 .77 96 .52 0.38 1 .10 329.10 60 0 .00 0 .00 95 .02 95 .77 0 .37 1 .10 329 .10 SOlJTHWEST BUSINESS CEl'ITER -PAGE 30 i ~ Q) Cl ... ca .J:. CJ I/) Ci Inflow/Outflow Simulation 25-Year Storm Event 10 .00 8 .00 6 .00 I . • I I . \ \ . \ \ \ I ' . \ \ I ' . ' ' \ ' ' \ \ \ \ ' \ 2 .00 /j .. · ··---.... --~ 0 .00 ... ---1-----+--..-..------+-----t~---1 0 10 20 30 40 Time (Minutes) ---Pre-Development Hydrograph Post-Development Outflcm Hydrograph Without Detention ---Post-Development Outflcm With Detention -- - - - -Post-Development "Free-Flow" SOUIHWEST BUS INESS CENTER -PAGE 31 50 60 Inflow I Outflow Simulation 50-Year Storm Event Time Inflow 11+ 12 2s/t-0 2s/t+O Outflow Depth Elevation (Minutes) (Ft3/Sec) (Ft3/Sec) (Feet) 0 0.00 0.00 0.00 0.00 0.00 0.00 326.00 1 1.42 1.42 1.28 1.42 0.07 0.07 326.07 2 2.85 4.27 4.99 5.55 0.28 0.27 326.27 3 4.27 7.12 10.88 12.11 0.62 0.59 326.59 4 5.70 9.97 18.73 20.85 1.06 1.01 327.01 5 7.12 12.82 28.34 31.55 1.60 1.53 327.53 6 8.55 15.67 39.54 44.02 2.24 2.13 328.13 7 9.97 18.52 52.90 58.06 2.58 2.49 328.49 8 11.40 21.37 68.98 74.27 2.64 2.57 328.57 9 12.82 24.22 87.84 93.20 2.68 2.63 328.63 10 14.25 27.07 109.45 114.91 2.73 2.70 328.70 11 13.53 27.78 131.68 137.23 2.77 2.76 328.76 12 12.82 26.36 152.40 158.04 2.82 2.83 328.83 13 12.11 24.93 171.63 177.33 2.85 2.88 328.88 14 11.40 23.51 189.40 195.14 2.87 2.90 328.90 15 10.69 22.08 205.71 211.48 2.89 2.93 328.93 16 9.97 20.66 220.57 226.37 2.90 2.95 328.95 17 9.26 19.23 233.98 239.80 2.91 2.97 328.97 18 8.55 17.81 245.94 251.79 2.92 2.99 328.99 19 7.84 16.38 256.46 262.32 2.93 3.00 329.00 20 7.12 14.96 265.53 271.42 2.94 3.02 329.02 21 6.41 13.53 273.17 279.07 2.95 3.03 329.03 22 5.70 12.11 279.37 285.28 2.95 3.04 329.04 23 4.99 10.69 284.14 290.05 2.96 3.04 329.04 24 4.27 9.26 287.47 293.40 2.96 3.05 329.05 25 3.56 7.84 289.38 295.31 2.96 3.05 329.05 26 2.85 6.41 289.86 295.79 2.96 3.05 329.05 27 2.14 4.99 288.92 294.85 2.96 3.05 329.05 28 1.42 3.56 286.56 292.48 2.96 3.05 329.05 29 0.71 2.14 282.78 288.70 2.96 3.04 329.04 30 0.00 0.71 277.59 283.49 2.95 3.03 329.03 31 0.00 0.00 271.69 277.59 2.95 3.03 329.03 32 0.00 0.00 265.81 271.69 2.94 3.02 329.02 33 0.00 0.00 259.94 265.81 2.94 3.01 329.01 34 0.00 0.00 254.08 259.94 2.93 3.00 329.00 35 0.00 0.00 248.23 254.08 2.93 2.99 328.99 36 0.00 0.00 242.39 248.23 2.92 2.98 328.98 37 0.00 0.00 236.56 242.39 2.91 2.97 328.97 38 0.00 0.00 230.74 236.56 2.91 2.97 328.97 39 0.00 0.00 224.93 230.74 2.90 2.96 328.96 40 0.00 0.00 219.14 224.93 2.90 2.95 328.95 41 0.00 0.00 213.35 219.14 2.89 2.94 328.94 42 0.00 0.00 207.58 213.35 2.89 2.93 328.93 43 0.00 0.00 201.82 207.58 2.88 2.92 328.92 44 0.00 0.00 196.06 201.82 2.88 2.91 328.91 45 0.00 0.00 190.32 196.06 2.87 2.91 328.91 SOUTI-iWEST BUSINESS CENTER -PAGE 32 46 0 .00 0 .00 120 .45 121 .35 0.45 1.25 329.25 47 0.00 0.00 119.56 120.45 0.45 1.24 329.24 48 0 .00 0 .00 118.67 119.56 0.45 1.24 329.24 49 0 .00 0 .00 117.78 118.67 0 .44 1 .23 329 .23 50 0 .00 0.00 116.90 117 .78 0.44 1 .23 329 .23 51 0 .00 0 .00 116.03 116 .90 0 .44 1.22 329.22 52 0 .00 0.00 115.16 116.03 0 .43 1 .22 329.22 53 0.00 0.00 114.29 115.16 0 .43 1 .21 329.21 54 0 .00 0.00 113 .44 114.29 0.43 1.21 329.21 55 0 .00 0 .00 112.58 113 .44 0.43 1.20 329.20 56 0 .00 0 .00 111 .73 112.58 0.42 1.20 329 .20 57 0 .00 0 .00 110.89 111 .73 0 .42 1.19 329 .19 58 0 .00 0.00 110 .05 110 .89 0.42 1 .19 329 .19 59 0 .00 0 .00 109.22 110.05 0.42 1.18 329.18 60 0.00 0 .00 108.39 109.22 0 .41 1 .18 329 .18 SOUTHWEST BUSINESS CE NTER -PAGE 33 i ~ Cl> en ... I'll .s:: CJ Ill 0 Inflow/Outflow Simulation 50-Year Storm Event 16 .00 14.00 12 .00 10.00 8 .00 6 .00 4.00 2 .00 0 .00 ., I ' -. I ' • ' I ' • ' • • • ' I ' • ' I ' • ' I ' • ' I ' I ' I ' -I I I ' I ' • ' • . • I I\ ' I ' I ' I ' I ' f /r \ ' ' ---\ ' ' /j .... .. . . . .. \ . . . . . . . . 0 10 20 30 40 Time (Minutes) ---Pre-Development Hydrograph Post-Development Outflow Hydrograph W ithout Detent ion ---Post-Development Outflow With Detenti on -- - - - -Post-Development "Free-Flow'' SOUTHWEST BUS INESS CENTER -PAGE 34 50 60 Inflow I Outflow Simulation 100-Year Storm Event Time Inflow 11+ 12 2s/t-0 2s/t+O Outflow Depth Elevation (Minutes) (Ft3/Sec) (Ft3/Sec) (Feet) 0 0.00 0.00 0.00 0.00 0.00 0.00 326.00 1 1.61 1.61 1.45 1.61 0.08 0.08 326.08 2 3.22 4.83 5.64 6.28 0.32 0.30 326.30 3 4.83 8.05 12.30 13.69 0.70 0.66 326.66 4 6.44 11.27 21.17 23.57 1.20 1.14 327.14 5 8.05 14.49 32.04 35.67 1.81 1.73 327.73 6 9.66 17.71 44.75 49.75 2.50 2.39 328.39 7 11.27 20.93 60.46 65.68 2.61 2.53 328.53 8 12.88 24.15 79.28 84.61 2.66 2.61 328.61 9 14.49 27.37 101.24 106.66 2.71 2.67 328.67 10 16.10 30.60 126.31 131.83 2.76 2.75 328.75 11 15.30 31.40 152.07 157.71 2.82 2.83 328.83 12 14.49 29.79 176.15 181.86 2.86 2.88 328.88 13 13.69 28_18 198.57 204.33 2.88 2.92 328.92 14 12.88 26.57 219.34 225.14 2.90 2.95 328.95 15 12.08 24.96 238.47 244.30 2.92 2.98 328.98 16 11.27 23.35 255.96 261.82 2.93 3.00 329.00 17 10.47 21.74 271.80 277.69 2.95 3.03 329.03 18 9_66 20.13 286.01 291.93 2.96 3.05 329.05 19 8.86 18.52 298.58 304.52 2.97 3.07 329.07 20 8.05 16.91 309.52 315.49 2.98 3.08 329.08 21 7.25 15.30 318.84 324.82 2.99 3.10 329.10 22 6.44 13.69 326.52 332.52 3.00 3.11 329.11 23 5.64 12.08 332.59 338.60 3.00 3.12 329.12 24 4_83 10.47 337.04 343.06 3.01 3.12 329.12 25 4.03 8.86 339.87 345.90 3.01 3.13 329.13 26 3.22 7.25 341.09 347.12 3.01 3.13 329.13 27 2.42 5.64 340.71 346.73 3.01 3.13 329.13 28 1.61 4.03 338.71 344.73 3.01 3.13 329.13 29 0.81 2.42 335.11 341.13 3.01 3.12 329.12 30 0.00 0.81 329.91 335.92 3.00 3.11 329.11 31 0.00 0.00 323.92 329.91 3.00 3.10 329.10 32 0.00 0.00 317.94 323.92 2.99 3.09 329.09 33 0.00 0.00 311.97 317.94 2.99 3.09 329.09 34 0.00 0.00 306.01 311.97 2.98 3.08 329.08 35 0.00 0.00 300.06 306.01 2.97 3.07 329.07 36 0.00 0.00 294.12 300.06 2.97 3.06 329.06 37 o_oo 0.00 288.20 294.12 2.96 3.05 329.05 38 0.00 0.00 282.28 288.20 2.96 3.04 329.04 39 0.00 0.00 276.38 282.28 2.95 3.03 329.03 40 0.00 0.00 270.48 276.38 2.95 3.02 329.02 41 0.00 0.00 264.60 270.48 2.94 3.02 329.02 42 0.00 0.00 258.73 264.60 2.94 3.01 329.01 43 0.00 0.00 252.87 258.73 2.93 3.00 329.00 44 0.00 0.00 247.03 252.87 2.92 2.99 328.99 45 0.00 0.00 241.19 247.03 2.92 2.98 328.98 SOUTHWEST BUSINESS CENTER -PAGE 35 46 o_oo o_oo 136_91 137.91 0.50 1.34 329.34 47 0.00 0.00 135.92 136.91 0.50 1.34 329.34 48 0.00 0.00 134.93 135.92 0.49 1.33 329.33 49 0.00 0.00 133.94 134.93 0.49 1.32 329.32 50 0.00 0.00 132.97 133.94 0.49 1.32 329.32 51 0.00 0.00 132.00 132.97 0.49 1.31 329.31 52 0.00 0.00 131.03 132.00 0.48 1.31 329.31 53 0.00 0.00 130.07 131.03 0.48 1.30 329.30 54 0.00 0.00 129.12 130.07 0.48 1.30 329.30 55 0.00 0.00 128.17 129.12 0.47 1.29 329.29 56 0.00 0.00 127.23 128.17 0.47 1.29 329.29 57 0.00 0.00 126.30 127.23 0.47 1.28 329.28 58 0.00 0.00 125.36 126.30 0.47 1.28 329.28 59 0.00 0.00 124.44 125.36 0.46 1.27 329.27 60 0.00 0.00 123.52 124.44 0.46 1.26 329.26 SOlJTHWEST BUSINESS CEITTER -PAGE 36 Inflow/Outflow Simulation 100-Year Storm Event 7.00 6.00 5.00 Iii 4.00 'ti ....... G1 2' "' .c ~ c 3.00 2.00 1.00 0 .00 l \ I 'l I ' I ' I \ . ' I ' I ' I ' I ' I \ I ' I l I l I ' I ' I ' I ' I ' I I \ I \ I ' I ' • \ • t I ' I ' I ' I ' • \ I \ • - I ' ~ ~ \ ~ ' ~\ 0 10 20 30 40 Time {Minutes) ---Pre-Developm en t Hydrograph Post-Deve lopme nt Outflow Hydrograph Without Detenti on ---Post-Development Outflow With Detention --- ---Post-Development "Free-R ow" SOlfTHWEST BUSINESS CENTER -PAGE 37 50 60 Inflow/Outflow Simulation 2-Year Storm Event -tj ....... G1 e' 0.20 .__-J---4-____.._---lH-----1------+-----+-----I IQ ~ ~ Q 0 10 20 30 40 so Time (Minutes) --Pre-Development Hydrograph -Total Post-Development Hydrograph SOITTHWEST BUSINESS CEl'fTER -PAGE 38 60 Inflow/Outflow Simulation 5-Year Storm Event 0 10 20 30 40 50 60 Time (Minutes) --Pre-Development Hydrograph -Total Post-Development Hydrograph SOUTHWEST BUSINESS CENTER -PAGE 39 Inflow/Outflow Simulation 10-Year Storm Event -~ ....... Q1 e' 0.30--~---1-~-+-~------+-~~~-+-~~~-1--~~~-+~~~-----j IV .c u II) c 0 10 20 30 40 50 60 Time (Minutes) --Pre-Development Hydrograph -Total Post-Development Hydrograph SOlJTHWEST BUSINESS CENTER -PAGE 40 Inflow/Outflow Simulation 25-Year Storm Event ........ ~ ....... QI e' 0.30+-~-+-~-+-~---~-H~~~~+-~~~-+-~~~-+~~~---j co ..c u Ill c 0.00 -fL---+---+----+---..... ---+------t 0 10 20 30 40 50 60 Time (Minutes) --Pre-Development Hydrograph -Total Post-Development Hydrograp h SOlJTHWEST BUSINESS CENTER -PAGE 41 Inflow/Outflow Simulation SO-Year Storm Event 0.00 ~----11-----+---+----t-----+-----1 0 10 20 30 40 50 60 Time (Minutes) --Pre-Development Hydrograph -Total Post-Development Hydrograp h SOUTHWEST BUSINESS CENTER -PAGE 42 Inflow/Outflow Simulation 100-Year Storm Event ........ ~ ......... Q1 fl 0.40._~-l--~--+-~_,___JH-~~~--+-~~~-+-~~~---+~~~--j ta .c ~ Q 0 10 20 30 40 so 60 Time (Minutes) --Pre-Development Hydrograph -Total Post-Development Hydrograph SOlJTHWEST BUSINESS CENTER -PAGE 43 Detention Pond Storage Volumes as Percent of Maximum Volume 100% 90% 80% 70% 60% % Capacity 50% 40% 30% 20% 10% 0% 2-year 5-year 10-year 25-year 50-year Design Storm Storm Depth Storm Elevation 329.34 329.43 Storm Volume 2657 4110 4657 Maximum Capacity 8678 8678 8678 8678 8678 8678 Percent of Capacity 27% 31% 36% 42% 47% 54% Over-Flow Elevation 329.85 329.85 329.85 329 .85 329 .85 329 .85 Freeboard 0 .86 Ft. 0.76 Ft. 0 .69 Ft. 0 .60 Ft. 0 .51 Ft. 0.42 Ft. Storm Frequency Predevelopment Postdevelopment (Peak Discharge Rates) (Peak Discharge Rates ) 2-Year Storm Event: 0.36 Cu .Ft/Sec. 0 .32 Cu .Ft/Sec. 5-Year Storm Event: 0.44 Cu .Ft/Sec. 0.37 Cu .Ft/Sec. 10-Year Storm Event: 0.49 Cu .Ft/Sec. 0.40 Cu .Ft/Sec. 25-Year Storm Event: 0.56 Cu .Ft./Sec . 0.45 Cu .Ft/Sec. 50 -Year Storm Event: 0.64 Cu .Ft/Sec. 0.50 Cu .Ft./Sec . 100-year Storm Event: 0.72 Cu .Ft./Sec. 0.55 Cu .Ft./Sec . As can be seen from the tabulation above the postdevelopment peak discharge rates have been reduced from the predevelopment peak discharge rates due to the incorporation of Detention Pond #1 . SO UTHW EST BUSINESS CENTER -PAGE 44 100-year DRAINAGE REPORT FOR SOUTHWEST BUSINESS CENTER LOTS 7 & 8, BLOCK TWO EDEL WEISS BUSINESS CENTER 2.43 ACRES COLLEGE STATION, BRAZOS COUNTY, TEXAS OCTOBER, 2003 DETENTION POND #2 PREPARED BY. L. A. BERRY, P .E . 1811 ROSE STREET BRYAN, TEXAS 77802 TELEPHONE: (210) 884-0065 SOUTHWEST BUS INESS CENTER -PAG E 1 a1t1nn1n1 mo.li1 •:11eav1.m11111 •:: =:,:•• • t: , ....... . 111i:1111n~iJ.11·•ulP:tilri'i 11.t.11 .•• ::· · ·t r Tributary Area ("A"): 1.74 Acres Pervious Area : 1.74 Acres Impervious Area: 0.00 Acres Run-Off Coefficient ("Cwt"): 0 .30 Time Of Concentration ("T/c"): Woodlands: Low Elevation : High Elevation : Distance (Feet): Slope(% Grade): Velocity ('Vw'): Time : Pastures: Low Elevation : High Elevation : Distance (Feet): Slope(% Grade): Velocity ("Vp"): Time : Pavements: Low Elevation : High Elevation : Distance (Feet): Slope (% Grade): Velocity ("Vpave"): Time : Total Travel Time: Rounded Travel Time: Hourly Intensity Rates ("I"): 2-Year: 6.33 5-Year: 7.69 10-Year: 8 .63 25-Year: 9 .86 50-Year: 11.15 100-Year: 12 .60 Peak Discharge Rate ("Q"): 2-Year: 3.30 5-Year: 4 .02 10-Year: 4.51 25-Year: 5 .15 50-Year: 5 .82 100-Year: 6 .58 C= 0.30 C= 0 .90 0 .00 0.00 0.00 0.00 0.00 Feet I Second 0.00 Minutes 0.00 0 .00 0.00 0.00 0.00 Feet I Second 0 .00 Minutes 0.00 0.00 0.00 0 .00 0.00 Feet I Second 0.00 Minutes 0.00 Minutes 10 Minutes (Minimum Allowed ) Inches I Hour Inches I Hour Inches I Hour Inches I Hour Inches I Hour Inches I Hour Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second SOUTHWEST BUSINESS CENTER -PAGE 2 Tributary Area ("A"): 1.72 Acres Pervious Area : 0.32 Acres Impervious Area: 1.40 Acres Run-Off Coefficient ("Cwt"): 0 . 79 Time Of Concentration ("T/c"): 10 Minutes Hourly Intensity Rates ("I"): 2-Year: 6 .33 5-Year: 7 .69 10-Year: 8.63 25-Year: 9 .86 50-Year: 11 .15 100-Year: 12 .60 Peak Discharge Rate ("Q"): 2-Year: 8.58 5-Year: 10.43 10-Year: 11 .71 25-Year: 13.37 50-Year: 15.12 100-Year: 17.09 C = 0 .30 C = 0 .90 Inches I Hour Inches I Hour Inches I Hour Inches I Hour Inches I Hour Inches I Hour Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second Predevelopment Post-Development Increase In Peak % Increase 2-Year: 3.30 Ft3/sec 8.58 Ft3/sec 5-Year: 4 .02 Ft3/sec 10.43 Ft3/sec 10-Year: 4 .51 Ft3/sec 11 . 71 Ft3/sec 25-Year: 5.15 Ft3/sec 13 .37 Ft3/sec 50-Year: 5.82 Ft3/sec 15.12 Ft3/sec 100-Year: 6 .58 Ft3/sec 17.09 Ft3/sec 2-Year Storm Event Requires Approximately: 5-Year Storm Event Requires Approximately: 10-Year Storm Event Requires Approximately: 25-Year Storm Event Requires Approximately: 50-Year Storm Event Requires Approx imately: 100-Year Storm Event Requires Approximately : 5 .28 Ft3/sec 6.42 Ft3/sec 7 .20 Ft3/sec 8 .22 Ft3/sec 9 .30 Ft3/sec 10.51 Ft3/sec 5 ,038 Cubic Feet 6 ,126 Cubic Feet 6,876 Cubic Feet 7 ,853 Cubic Feet 8,877 Cubic Feet 10 ,034 Cubic Feet Time Base (Tb)= 3 .00 x Tic And Time Of Concentration (Tic) Of 10 Minutes. SOUTHWEST BUSINESS CENTER -PAGE 3 160 160 160 160 160 160 litinn1,D1 ::1111111v11 21.mifit:~2eii1i1m:1~~1 el~l-§JPrm·rl8.;tlf:lilP:hMm!·' :1i, :'l] : r:::1: Tributary Area ("A"): 0 .22 Acres Pervious Area : 0.20 Acres C= 0 .30 Impervious Area : 0.02 Acres C = 0 .90 Run-Off Coefficient ("Cwt"): 0 .35 Time Of Concentration ("T/c"): 10 Minutes (Min .) Hourly Intensity Rates ("I "): 2-Year: 6 .33 Inches I Hour 5-Year: 7.69 Inches I Hour 10-Year: 8 .63 Inches I Hour 25-Year: 9 .86 Inches I Hour 50-Year: 11 .15 Inches I Hour 100-Year: 12 .60 Inches I Hour Peak Discharge Rate ("Q"): 2-Year: 0 .49 Cubic Feet I Second 5-Year: 0.60 Cubic Feet I Second 10-Year: 0 .67 Cubic Feet I Second 25-Year: 0 .77 Cubic Feet I Second 50-Year: 0 .87 Cubic Feet I Second 100-Year: 0 .98 Cubic Feet I Second SOUTHWEST BUSINESS CENTER -PAGE 4 Elirmini 1111111v1n11mitil : =:::::J :::: r• : :r '.•F'.·,=.·,.=,:· .. ',:1.,='.·,=.~.··.=.·.==.:•.= .. •,~,.·.= ..• ·.=.·.= ..• ·.=.•,.=,:,i.:1'.,·=.=n•.=.•.=.:.·= .. •.4'.'.°'.=~.·'.·,··.,:.= .. •,.=.:,='.'".·.=.·.=.;.='.',','.:o!!l.··.=.• .. =·.= .. •.• .. =.=.·=.~.··.=·.= .. •.•.="·.··.= .. •.=.··.~,=.··.·:...=.·.=.~= .. •.=•.==•.= .. •n= .. •.= .. •,,=•.= .. •,i.:',='.•n.·.=.·,.=,:· .. =,~ .. =.:= .. :.·=•.= ... ,·'.·n'.'.'.'.:'.' .... '."''.''.:.=.·.=. =::::::::::::::::••••••••••••::::::::•=•===•===:::========·===·=·=·=· ..... ···.·.···· w:ws: :.f,iy. liil.~:\~:t:fUW rnM W :f~{{{{;::~{:}~{:}~{:\{ff}f:::;::;:::;::::::::·:::·:·:·· Tributary Area ("A"): 1.50 Acres Pervious Area : 0.12 Acres Impervious Area : 1.38 Acres Run-Off Coefficient ("Cwt"): 0 .85 Time Of Concentration ("T/c"): 10 Minutes Hourly Intensity Rates ("I"): 2-Year: 6.33 5-Year: 7.69 10-Year: 8.63 25-Year: 9 .86 50-Year: 11 .15 100-Year: 12.60 Peak Discharge Rate ("Q"): 2-Year: 8.09 5-Year: 9.83 10-Year: 11 .03 25-Year: 12.60 50-Year: 14.25 100-Year: 16 .10 C= 0.30 C= 0.90 Inches I Hour Inches I Hour Inches I Hour Inches I Hour Inches I Hour Inches I Hour Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second Cubic Feet I Second SOUTHWEST BUSINESS CENTER -PAGE 5 Pre-Development Inflow Hydrograph Ordinates (Cubic Feet per Second) Time 2-Year 5-Year 10-Year 25-Year 50-Year 100-Year {Minutes~ Storm Storm Storm Storm Storm Storm 0 0.00 0.00 0.00 0.00 0.00 0.00 1 0.33 0.40 0.45 0.51 0.58 0.66 2 0.66 0.80 0.90 1.03 1.16 1.32 3 0.99 1.20 1.35 1.54 1.75 1.97 4 1.32 1.61 1.80 2.06 2.33 2.63 5 1.65 2.01 2.25 2.57 2.91 3.29 6 1.98 2.41 2.70 3.09 3.49 3.95 7 2.31 2.81 3.16 3.60 4.07 4.60 8 2.64 3.21 3.61 4.12 4.66 5.26 9 2.97 3.61 4.06 4.63 5.24 5.92 10 3.30 4.02 4.51 5.15 5.82 6.58 11 3.14 3.81 4.28 4.89 5.53 6.25 12 2.97 3.61 4.06 4.63 5.24 5.92 13 2.81 3.41 3.83 4.38 4.95 5.59 14 2.64 3.21 3.61 4.12 4.66 5.26 15 2.48 3.01 3.38 3.86 4.36 4.93 16 2.31 2.81 3.16 3.60 4.07 4.60 17 2.15 2.61 2.93 3.35 3.78 4.28 18 1.98 2.41 2.70 3.09 3.49 3.95 19 1.82 2.21 2.48 2.83 3.20 3.62 20 1.65 2.01 2.25 2.57 2.91 3.29 21 1.49 1.81 2.03 2.32 2.62 2.96 22 1.32 1.61 1.80 2.06 2.33 2.63 23 1.16 1.41 1.58 1.80 2.04 2.30 24 0.99 1.20 1.35 1.54 1.75 1.97 25 0.83 1.00 1.13 1.29 1.45 1.64 26 0.66 0.80 0.90 1.03 1.16 1.32 27 0.50 0.60 0.68 0.77 0.87 0.99 28 0.33 0.40 0.45 0.51 0.58 0.66 29 0.17 0.20 0.23 0.26 0.29 0.33 30 0.00 0.00 0.00 0.00 0.00 0.00 31 0.00 0.00 0.00 0.00 0.00 0.00 32 0.00 0.00 0.00 0.00 0.00 0.00 33 0.00 0.00 0.00 0.00 0.00 0.00 34 0.00 0.00 0.00 0.00 0.00 0.00 35 0.00 0.00 0.00 0.00 0.00 0.00 36 0.00 0.00 0.00 0.00 0.00 0.00 37 0.00 0.00 0.00 0.00 0.00 0.00 38 0.00 0.00 0.00 0.00 0.00 0.00 39 0.00 0.00 0.00 0.00 0.00 0.00 40 0.00 0.00 0.00 0.00 0.00 0.00 41 0.00 0.00 0.00 0.00 0.00 0.00 42 0.00 0.00 0.00 0.00 0.00 0.00 43 0.00 0.00 0.00 0.00 0.00 0.00 44 0.00 0.00 0.00 0.00 0.00 0.00 45 0.00 0.00 0.00 0.00 0.00 0.00 SOUTHWEST BUSINESS CENTER -PAGE 6 CJ) 0 c :i! ~ m CJ) --< ID c CJ) z m CJ) CJ) () m z ri1 ;u "U )> Gl m .... p 00 0 p 00 p p 0 0 p 0 p 0 0 00 0 0 00 0 0 0 0 0 0 0 0 0 00 0 0 00 0 0 0 0 0 0 0 0 0 00 p 0 00 0 0 0 0 0 0 0 0 0 00 0 0 00 0 0 0 0 0 0 0 0 0 00 0 0 00 0 0 0 0 0 0 0 0 0 00 0 0 00 0 0 0 p 0 0 0 0 00 0 0 00 0 0 0 0 0 0 0 0 0 0 00 0 0 00 0 0 0 0 0 0 0 0 000 0 0 00 0 0 0 0 0 0 0 0 000 0 0 00 0 0 0 0 0 0 0 0 000 0 0 00 0 0 0 0 0 0 0 0 poooooooooooppo 000000000000000 000000000000000 pppoooooooopooo ggggggggggggggg Post-Development Inflow Hydrograph Ordinates (Cubic Feet per Second) Time 2-Year 5-Year 10-Year 25-Year 50-Year 100-Year (Minutes) Storm Storm Storm Storm Storm Storm 0 0.00 0.00 0.00 0.00 0.00 0.00 1 0.86 1.04 1.17 1.34 1.51 1.71 2 1.72 2.09 2.34 2.67 3.02 3.42 3 2.57 3.13 3.51 4.01 4.53 5.13 4 3.43 4.17 4.68 5.35 6.05 6.83 5 4.29 5.22 5.85 6.69 7.56 8.54 6 5.15 6.26 7.03 8.02 9.07 10.25 7 6.01 7.30 8.20 9.36 10.58 11.96 8 6.86 8.35 9.37 10.70 12.09 13.67 9 7.72 9.39 10.54 12.03 13.60 15.38 10 8.58 10.43 11.71 13.37 15.12 17.09 11 8.15 9.91 11.12 12.70 14.36 16.23 12 7.72 9.39 10.54 12.03 13.60 15.38 13 7.29 8.87 9.95 11.37 12.85 14.52 14 6.86 8.35 9.37 10.70 12.09 13.67 15 6.43 7.82 8.78 10.03 11.34 12.81 16 6.01 7.30 8.20 9.36 10.58 11.96 17 5.58 6.78 7.61 8.69 9.83 11.11 18 5.15 6.26 7.03 8.02 9.07 10.25 19 4.72 5.74 6.44 7.35 8.31 9.40 20 4.29 5.22 5.85 6.69 7.56 8.54 21 3.86 4.69 5.27 6.02 6.80 7.69 22 3.43 4.17 4.68 5.35 6.05 6.83 23 3.00 3.65 4.10 4.68 5.29 5.98 24 2.57 3.13 3.51 4.01 4.53 5.13 25 2.14 2.61 2.93 3.34 3.78 4.27 26 1.72 2.09 2.34 2.67 3.02 3.42 27 1.29 1.56 1.76 2.01 2.27 2.56 28 0.86 1.04 1.17 1.34 1.51 1.71 29 0.43 0.52 0.59 0.67 0.76 0.85 30 0.00 0.00 0.00 0.00 0.00 0.00 31 0.00 0.00 0.00 0.00 0.00 0.00 32 0.00 0.00 0.00 0.00 0.00 0.00 33 0.00 0.00 0.00 0.00 0.00 0.00 34 0.00 0.00 0.00 0.00 0.00 0.00 35 0.00 0.00 0.00 0.00 0.00 0.00 36 0.00 0.00 0.00 0.00 0.00 0.00 37 0.00 0.00 0.00 0.00 0.00 0.00 38 0.00 0.00 0.00 0.00 0.00 0.00 39 0.00 0.00 0.00 0.00 0.00 0.00 40 0.00 0.00 0.00 0.00 0.00 0.00 41 0.00 0.00 0.00 0.00 0.00 0.00 42 0.00 0.00 0.00 0.00 0.00 0.00 43 0.00 0.00 0.00 0.00 0.00 0.00 44 0.00 0.00 0.00 0.00 0.00 0.00 45 0.00 0.00 0.00 0.00 0.00 0.00 SOUTHWEST BUSINESS CENTER -PAGE 8 000000000000000 000000000000000 000000000000000 000000000000000 000000000000000 000000000000000 00 00 0 000 00 0 000 0 00 00 0 000 00 0 000 0 00 00 0 000 00 0 000 0 00 00 0 00 0 000 0 00 0 00 00 0 00 0 000 0 00 0 00 00 0 00 0 000 0 00 0 0000 0 00 0 00 0 0 00 0 0000 0 000 00 0 000 0 0000 0 000 00 0 000 0 00 000 0 0 0 0 0 0 00 0 0 00 000 00 0 0 00 00 0 0 00 000 00 0 0 00 00 0 0 "' w Cl < a. 0:: ~ z w u en en w z iii :::i CD ,.... en w ~ F= :::i 0 en Post-Development "Free-Flow" Inflow Hydrograph Ordinates (Cubic Feet per Second) Time 2-Year 5-Year 10-Year 25-Year 50-Year 100-Year (Minutes) Storm Storm Storm Storm Storm Storm 0 0.00 0.00 0.00 0.00 0.00 0.00 1 0.05 0.06 0.07 0.08 0.09 0.10 2 0.10 0.12 0.13 0.15 0.17 0.20 3 0.15 0.18 0.20 0.23 0.26 0.29 4 0.20 0.24 0.27 0.31 0.35 0.39 5 0.25 0.30 0.34 0.38 0.43 0.49 6 0.30 0.36 0.40 0.46 0.52 0.59 7 0.35 0.42 0.47 0.54 0.61 0.69 8 0.39 0.48 0.54 0.62 0.70 0.79 9 0.44 0.54 0.61 0.69 0.78 0.88 10 0.49 0.60 0.67 0.77 0.87 0.98 11 0.47 0.57 0.64 0.73 0.83 0.93 12 0.44 0.54 0.61 0.69 0.78 0.88 13 0.42 0.51 0.57 0.65 0.74 0.84 14 0.39 0.48 0.54 0.62 0.70 0.79 15 0.37 0.45 0.51 0.58 0.65 0.74 16 0.35 0.42 0.47 0.54 0.61 0.69 17 0.32 0.39 0.44 0.50 0.57 0.64 18 0.30 0.36 0.40 0.46 0.52 0.59 19 0.27 0.33 0.37 0.42 0.48 0.54 20 0.25 0.30 0.34 0.38 0.43 0.49 21 0.22 0.27 0.30 0.35 0.39 0.44 22 0.20 0.24 0.27 0.31 0.35 0.39 23 0.17 0.21 0.24 0.27 0.30 0.34 24 0.15 0.18 0.20 0.23 0.26 0.29 25 0.12 0.15 0.17 0.19 0.22 0.25 26 0.10 0.12 0.13 0.15 0.17 0.20 27 0.07 0.09 0.10 0.12 0.13 0.15 28 0.05 0.06 0.07 0.08 0.09 0.10 29 0.02 0.03 0.03 0.04 0.04 0.05 30 0.00 0.00 0.00 0.00 0.00 0.00 31 0.00 0.00 0.00 0.00 0.00 0.00 32 0.00 0.00 0.00 0.00 0.00 0.00 33 0.00 0.00 0.00 0.00 0.00 0.00 34 0.00 0.00 0.00 0.00 0.00 0.00 35 0.00 0.00 0.00 0.00 0.00 0.00 36 0.00 0.00 0.00 0.00 0.00 0.00 37 0.00 0.00 0.00 0.00 0.00 0.00 38 0.00 0.00 0.00 0.00 0.00 0.00 39 0.00 0.00 0.00 0.00 0.00 0.00 40 0.00 0.00 0.00 0.00 0.00 0.00 41 0.00 0.00 0.00 0.00 0.00 0.00 42 0.00 0.00 0.00 0.00 0.00 0.00 43 0.00 0.00 0.00 0.00 0.00 0.00 44 0.00 0.00 0.00 0.00 0.00 0.00 45 0.00 0.00 0.00 0.00 0.00 0.00 SOUTHWEST BUSINESS CENTER -PAGE 10 (f) 0 c :t ~ m (f) --i OJ c (f) z m (f) (f) n m z n1 ;o " )> Gl m ::: 0000 0 00 0 00 000 00 0000 0 00 0 00 000 00 0000 0 00 0 00 000 00 0 0000 00 0 00000 00 00000 00 0 00000 00 00000 00 0 00000 00 0 00 0 000 000 0 00 00 0 000 000 000 0 00 00 0 000 000 000 0 00 00 0 00 0 9 9999 9 0 9 9 0 9 0 000 000000 0 0 0 0 0 0 000 000000 0 0 0 0 0 000009900999900 00000000000000000 0000000000000 000009900000000 00000000000000000 0000000000000 Post-Development Flow Routed Through Detention Pond Inflow Hydrograph Ordinates (Cubic Feet per Second) Time 2-Year 5-Year 10-Year 25-Year 50-Year 100-Year (Minutes) Storm Storm Storm Storm Storm Storm 0 0.00 0.00 0.00 0.00 0.00 0.00 1 0.81 0.98 1.10 1.26 1.42 1.61 2 1.62 1.97 2.21 2.52 2.85 3.22 3 2.43 2.95 3.31 3.78 4.27 4.83 4 3.23 3.93 4.41 5.04 5.70 6.44 5 4.04 4.92 5.52 6.30 7.12 8.05 6 4.85 5.90 6.62 7.56 8.55 9.66 7 5.66 6.88 7.72 8.82 9.97 11.27 8 6.47 7.87 8.83 10.08 11.40 12.88 9 7.28 8.85 9.93 11.34 12.82 14.49 10 8.09 9.83 11.03 12.60 14.25 16.10 11 7.68 9.34 10.48 11.97 13.53 15.30 12 7.28 8.85 9.93 11.34 12.82 14.49 13 6.87 8.36 9.38 10.71 12.11 13.69 14 6.47 7.87 8.83 10.08 11.40 12.88 15 6.06 7.37 8.28 9.45 10.69 12.08 16 5.66 6.88 7.72 8.82 9.97 11.27 17 5.26 6.39 7.17 8.19 9.26 10.47 18 4.85 5.90 6.62 7.56 8.55 9.66 19 4.45 5.41 6.07 6.93 7.84 8.86 20 4.04 4.92 5.52 6.30 7.12 8.05 21 3.64 4.42 4.97 5.67 6.41 7.25 22 3.23 3.93 4.41 5.04 5.70 6.44 23 2.83 3.44 3.86 4.41 4.99 5.64 24 2.43 2.95 3.31 3.78 4.27 4.83 25 2.02 2.46 2.76 3.15 3.56 4.03 26 1.62 1.97 2.21 2.52 2.85 3.22 27 1.21 1.47 1.66 1.89 2.14 2.42 28 0.81 0.98 1.10 1.26 1.42 1.61 29 0.40 0.49 0.55 0.63 0.71 0.81 30 0.00 0.00 0.00 0.00 0.00 0.00 31 0.00 0.00 0.00 0.00 0.00 0.00 32 0.00 0.00 0.00 0.00 0.00 0.00 33 0.00 0.00 0.00 0.00 0.00 0.00 34 0.00 0.00 0.00 0.00 0.00 0.00 35 0.00 0.00 0.00 0.00 0.00 0.00 36 0.00 0.00 0.00 0.00 0.00 0.00 37 0.00 0.00 0.00 0.00 0.00 0.00 38 0.00 0.00 0.00 0.00 0.00 0.00 39 0.00 0.00 0.00 0.00 0.00 0.00 40 0.00 0.00 0.00 0.00 0.00 0.00 41 0.00 0.00 0.00 0.00 0.00 0.00 42 0.00 0.00 0.00 0.00 0.00 0.00 43 0.00 0.00 0.00 0.00 0.00 0.00 44 0.00 0.00 0.00 0.00 0.00 0.00 45 0.00 0.00 0.00 0.00 0.00 0.00 SOUTHWEST BUSINESS CENTER -PAGE 12 ggggggggggggggg 000000000000000 ggggggggggggggg 000000000000000 00 0 0 000 0 00 00000 0 00 00000 0 0 0 0 0 0 000 00 000 000 00 000 000 0 0 00 0 00 0 0 0 00 0 00 0 0 0 00 0 00 0 0 0 00 0 00 0 0 0 00 0 00 0 0 0 00 0 00 0 0 0 0 0 0 0 0 0 0 00 0 00 0 00 0 00 0 00 0 00 0 000 000 000 0000 0000 0000 0000 0000 0000 00 0 0 00 0 0 00 0 0 00 0 0 00 0 0 00 0 0 t-000>0 I{) I{) I{) co ~ w t? <( 0.. 0:: ~ z w '-' (/) (/) w z ii) ::> m I- (/) w :!: i!' ::> 0 (/) Total Pre-Development Vs. Total Post-Development (No Detention) Peak Discharge Rates 2-Year Storm Event 10.00 9.00 8 .00 i 7.00 ~ 6.00 Q) C> 5.00 ... ca .c: 4 .00 (J I/) c 3.00 2.00 1 .00 0.00 0 10 20 30 40 50 Time (Minutes) --Pre-Developmen t Hydrograph -Total Post-Devel opment Hydrograph Total Pre-Development Vs . Total Post-Development (No Detention) Peak Discharge Rates 5-Year Storm Event 12.00 10.00 -J!! 8.00 ~ Q) C> 6 .00 ... ca .c: (J I/) 4 .00 c 2.00 0 .00 0 10 20 30 40 50 Time (Minutes) --Pre-Developmen t Hydrograph -Post-Development Outfla.v Hydrograph W ith out Detention SOUTHWEST BUSINESS CENTER -PAGE 14 60 60 Total Pre-Development Vs . Tota l Post-Development (No Detention) Peak Discharge Rates 10-Year Storm Event 14 .00 12 .00 10 .00 i ~ 8 .00 Q) e "' =. 6 .00 CJ Ill i5 4 .00 2 .00 0 .00 0 10 20 30 40 50 Time (Minutes) --Pre-Devel opment Hydrograph -Post-Development Outflo.v Hydrograph Without Detent ion Total Pre-Development Vs . Total Post-Development (No Detention) Peak Discharge Rates 25-Year Storm Event 60 16 .00----~---~------~---~--~ 14 .00 12 .00 i 10 .00 ~ Q) en 8 .00 ... "' =. CJ Ill i5 6 .00 4 .00 2 .00 0 .00 0 10 20 30 4 0 50 60 T i me IMinutesl --Pre-Development Hydrograph -Post-Devel opment Outflo.v Hydrograph Without Detent ion SOUTHW EST BUS IN ESS CENTER -PAGE 15 Total Pre-Development Vs. Total Post-Development (No Detention) Peak Discharge Rates 50-Year Storm Event 16.00 14 .00 12 .00 i 10 .00 ~ Q) Cl 8 .00 ... "' = u 6 .00 I/) i5 4 .00 2 .00 0.00 0 10 20 30 40 50 Time (Minutes) --Pre-Development Hydrograph -Post-Development Outflo.v Hydrograph Without Detention Total Pre-Development Vs. Total Post-Development (No Detention) Peak Discharge Rates 100-Year Storm Event 18.00 16 .00 14 .00 i 12.00 ~ Q) 10.00 e "' 8 .00 = u I/) i5 6 .00 4 .00 2.00 0.00 0 10 20 30 40 50 Time (Minutes) --Pre-Development Hydrograph -Post-Development Outflo.v Hydrograph Without Detention SOUTHWEST BUSINESS CENTER -PAGE 16 60 60 111r.~~r~1111r•J11 :1•••:•:•••i•••••••::::••••••:··1111t11111111 Elevation 326 .00 328 .37 328.47 328 .57 328 .87 329 .37 Contour Area (Ft2) 0 N/A NIA N/A N/A N/A -.. Cl) Cl) LL 4 .00 3.50 3.00 2 .50 ~ 2 .00 .. Q, Cl) c 1.50 1.00 0.50 0.00 Depth Volume (Ft.) (Ft3) 0.00 0 2 .37 1,394 2.47 1,546 2.57 2 ,100 2 .87 5 ,079 3.37 15 ,206 Detention Pond Depth Vs. Volume - ~~ ,,,- ( 0 2 ,000 4 ,000 6 ,000 8 ,000 10,000 12 ,000 14,000 16 ,000 Detention Pond Volume (Cubic Feet) SOUTHWEST BUSINESS CENTER -PAGE 17 : .• !.'·.••.=''.•.a.i ... ·.'.:·.'.Jl·~.:.•·.p.···• .• •,.•.\.,• .. •• ..• ''.'.••.,•.;.. .. •·.P.,:_ .• i .. •.1¥.~ .. •.,•,.:,,.••.•.a.,.···.··:.:l:.E.~ ..... •f!..· .. :.,.'.·•·.ft.,·:.:.•o .... i.•: .• :.•:.i.•• .• ·.;.u·;·,······.• .• t .• • . .=.••.'Jl.!,i.•.,•.•', ~'.$~~)1~~ ~!F:~!::·:· { W:w. :U :I :¥:=•--::v::v. Ul1:1v: ::;:::;:::::;.;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;:;::::;:;:::::::::::::::::::::::::::::;::;.;:::·:·:-:-··:·.··-·· Elevation Depth (Feet) 326.00 0.00 328.37 2.37 328.47 2.47 328.57 2.57 328.87 2.87 329 .37 3.37 3.25 Inch Wide Orifice 0.41 Orifice Area (Sq . Ft.) "h" 0 1.62 1.72 1.82 2 .12 2.62 Discharge Ft3/Sec 0.00 2.49 2.57 2.64 2.85 3.17 Rating Curve For Outlet Control Structure Depth Vs. Volume i Cl> LL :; 2 .00--~~--+~~~-+-~~--+~~~--i-.;~~--+~~~-+-~~---j .. c. Cl> c 0.00 1""----+--~t-----+----+---+----+-----4 0.00 0.50 1.00 1.50 2 .00 2.50 3.00 3.50 Discharge (Cubic Feet Per Second) SOUTHWEST BUSINESS CENTER -PAGE 18 t§~t•a•::tnlieat~n:::gu.rv~::tttrtnr::mr: :: rw1 Depth Storage Discharge 2s/t 2s/t+O (Feet) (Ft3) (Ft3/Sec) (Ft3/Sec) (Ft3/Sec) 0.00 0 0.00 0.00 0.00 2.37 1,394 2.49 46.47 48.96 2.47 1,546 2.57 51.53 54.10 2.57 2,100 2.64 70.00 72.64 2.87 5,079 2.85 169.30 172.15 3.37 15,206 3.17 506.87 510.03 Storage Indication Curve 3.50 ---------3.00 2.50 i 2.00 ~ Cl) e I'll .c CJ Ill i:5 1.50 1.00 0.50 0.00 0.00 --------~ r 100.00 200.00 300.00 400.00 500.00 2s/t+O (Cubic Feet Per Second) SOUTHWEST BUSINESS CENTER· PAGE 19 600.00 Inflow I Outflow Simulation 2-Year Storm Event Time Inflow 11+ 12 2s/t-O 2s/t+O Outflow Depth Elevation (Minutes) (Ft3/Sec) (Ft3/Sec) (Feet) 0 0.00 0.00 0.00 0.00 0.00 0.00 326.00 1 0.81 0.81 0.73 0.81 0.04 0.04 326.04 2 1.62 2.43 2.83 3.15 0.16 0.15 326.15 3 2.43 4.04 6.17 6.87 0.35 0.33 326.33 4 3.23 5.66 10.63 11.83 0.60 0.57 326.57 5 4.04 7.28 16.09 17.91 0.91 0.87 326.87 6 4.85 8.89 22.44 24.98 1.27 1.21 327.21 7 5.66 10.51 29.60 32.95 1.68 1.60 327.60 8 6.47 12.13 37.48 41.73 2.12 2.02 328.02 9 7.28 13.74 46.18 51.23 2.52 2.41 328.41 10 8.09 15.36 56.35 61.54 2.59 2.51 328.51 11 7.68 15.77 66.85 72.12 2.64 2.57 328.57 12 7.28 14.96 76.49 81.80 2.66 2.60 328.60 13 6.87 14.15 85.28 90.64 2.68 2.62 328.62 14 6.47 13.34 93.24 98.62 2.69 2.65 328.65 15 6.06 12.53 100.35 105.77 2.71 2.67 328.67 16 5.66 11.72 106.63 112.08 2.72 2.69 328.69 17 5.26 10.92 112.08 117.55 2.73 2.71 328.71 18 4.85 10.11 116.70 122.19 2.74 2.72 328.72 19 4.45 9.30 120.50 126.00 2.75 2.73 328.73 20 4.04 8.49 123.47 128.99 2.76 2.74 328.74 21 3.64 7.68 125.63 131.15 2.76 2.75 328.75 22 3.23 6.87 126.97 132.50 2.76 2.75 328.75 23 2.83 6.06 127.50 133.04 2.77 2.75 328.75 24 2.43 5.26 127.23 132.76 2.77 2.75 328.75 25 2.02 4.45 126.15 131.68 2.76 2.75 328.75 26 1.62 3.64 124.27 129.79 2.76 2.74 328.74 27 1.21 2.83 121.59 127.10 2.75 2.73 328.73 28 0.81 2.02 118.12 123.61 2.75 2.72 328.72 29 0.40 1.21 113.86 119.33 2.74 2.71 328.71 30 0.00 0.40 108.81 114.27 2.73 2.70 328.70 31 0.00 0.00 103.38 108.81 2.71 2.68 328.68 32 0.00 0.00 97.98 103.38 2.70 2.66 328.66 33 0.00 0.00 92.59 97.98 2.69 2.65 328.65 34 0.00 0.00 87.23 92.59 2.68 2.63 328.63 35 0.00 0.00 81.89 87.23 2.67 2.61 328.61 36 0.00 0.00 76.57 81.89 2.66 2.60 328.60 37 0.00 0.00 71.28 76.57 2.65 2.58 328.58 38 0.00 0.00 66.01 71.28 2.63 2.56 328.56 39 0.00 0.00 60.79 66.01 2.61 2.53 328.53 40 0.00 0.00 55.60 60.79 2.59 2.51 328.51 41 0.00 0.00 50.46 55.60 2.57 2.48 328.48 42 0.00 0.00 45.44 50.46 2.51 2.40 328.40 43 0.00 0.00 40.82 45.44 2.31 2.20 328.20 44 0.00 0.00 36.66 40.82 2.08 1.98 327.98 45 0.00 0.00 32.93 36.66 1.86 1.77 327.77 SOUTHWEST BUSINESS CENTER -PAGE 20 46 0.00 0.00 29.59 32.93 1.67 1.59 327.59 47 0.00 0.00 26.58 29.59 1.50 1.43 327.43 48 0.00 0.00 23.87 26.58 1.35 1.29 327.29 49 0.00 0.00 21.44 23.87 1.21 1.16 327.16 50 0.00 0.00 19.26 21.44 1.09 1.04 327.04 51 0.00 0.00 17.30 19.26 0.98 0.93 326.93 52 0.00 0.00 15.54 17.30 0.88 0.84 326.84 53 0.00 0.00 13.96 15.54 0.79 0.75 326.75 54 0.00 0.00 12.54 13.96 0.71 0.68 326.68 55 0.00 0.00 11.27 12.54 0.64 0.61 326.61 56 0.00 0.00 10.12 11.27 0.57 0.55 326.55 57 0.00 0.00 9.09 10.12 0.51 0.49 326.49 58 0.00 0.00 8.17 9.09 0.46 0.44 326.44 59 0.00 0.00 7.34 8.17 0.42 0.40 326.40 60 0.00 0.00 6.59 7.34 0.37 0.36 326.36 SOUTHWEST BUSINESS CENTER -PAGE 21 i ~ Q) Cl ... "' .s:: (,) r/) c Inflow/Outflow Simulation 2-Year Storm Event 9.00 8.00 7.00 6 .00 5 .00 4 .00 3.00 0 I\ ' ' I ' \ I ' \ I I \ \ I I \ ' I \ 10 20 30 40 Time (Minutes) ---P re-Development Hyd rog rap h Post-Development O utflcm Hyd rog raph Without Detent ion --•Post-Development O utflcm With Detenti on -• - -Post-Developmen t "Free-Flow'' SOUTHWEST BUSINESS CENTER -PAGE 22 50 60 Inflow I Outflow Simulation 5-Year Storm Event Time Inflow 11+ 12 2s/t-0 2s/t+O Outflow Depth Elevation (Minutes) (Ft3/Sec) (Ft3/Sec) (Feet) 0 0.00 0.00 0.00 0.00 0.00 0.00 326.00 1 0.98 0.98 0.88 0.98 0.05 0.05 326.05 2 1.97 2.95 3.44 3.83 0.19 0.19 326.19 3 2.95 4.92 7.51 8.36 0.43 0.40 326.40 4 3.93 6.88 12.93 14.39 0.73 0.70 326.70 5 4.92 8.85 19.56 21.77 1.11 1.05 327.05 6 5.90 10.81 27.29 30.37 1.54 1.47 327.47 7 6.88 12.78 35.99 40.07 2.04 1.94 327.94 8 7.87 14.75 45.71 50.74 2.52 2.40 328.40 9 8.85 16.71 57.22 62.42 2.60 2.51 328.51 10 9.83 18.68 70.61 75.90 2.65 2.58 328.58 11 9.34 19.17 84.43 89.78 2.67 2.62 328.62 12 8.85 18.19 97.22 102.62 2.70 2.66 328.66 13 8.36 17.20 108.97 114.42 2.73 2.70 328.70 14 7.87 16.22 119.69 125.19 2.75 2.73 328.73 15 7.37 15.24 129.39 134.93 2.77 2.76 328.76 16 6.88 14.26 138.07 143.65 2.79 2.78 328.78 17 6.39 13.27 145.73 151.34 2.80 2.81 328.81 18 5.90 12.29 152.38 158.02 2.82 2.83 328.83 19 5.41 11.31 158.03 163.69 2.83 2.84 328.84 20 4.92 10.32 162.67 168.35 2.84 2.86 328.86 21 4.42 9.34 166.32 172.01 2.85 2.87 328.87 22 3.93 8.36 168.97 174.67 2.85' 2.87 328.87 23 3.44 7.37 170.64 176.35 2.85 2.88 328.88 24 2.95 6.39 171.33 177.03 2.85 2.88 328.88 25 2.46 5.41 171.03 176.73 2.85 2.88 328.88 26 1.97 4.42 169.75 175.45 2.85 2.87 328.87 27 1.47 3.44 167.49 173.19 2.85 2.87 328.87 28 0.98 2.46 164.27 169.95 2.84 2.86 328.86 29 0.49 1.47 160.07 165.74 2.83 2.85 328.85 30 0.00 0.49 154.91 160.56 2.82 2.84 328.84 31 0.00 0.00 149.29 154.91 2.81 2.82 328.82 32 0.00 0.00 143.69 149.29 2.80 2.80 328.80 33 0.00 0.00 138.11 143.69 2.79 2.78 328.78 34 0.00 0.00 132.56 138.11 2.78 2.77 328.77 35 0.00 0.00 127.03 132.56 2.76 2.75 328.75 36 0.00 0.00 121.53 127.03 2.75 2.73 328.73 37 0.00 0.00 116.04 121.53 2.74 2.72 328.72 38 0.00 0.00 110.58 116.04 2.73 2.70 328.70 39 0.00 0.00 105.14 110.58 2.72 2.68 328.68 40 0.00 0.00 99.73 105.14 2.71 2.67 328.67 41 0.00 0.00 94.34 99.73 2.70 2.65 328.65 42 0.00 0.00 88.97 94.34 2.68 2.64 328.64 43 0.00 0.00 83.62 88.97 2.67 2.62 328.62 44 0.00 0.00 78.30 83.62 2.66 2.60 328.60 45 0.00 0.00 73.00 78.30 2.65 2.59 328.59 SOUTHWEST BUSINESS CENTER • PAGE 23 46 0 .00 0 .00 67 .72 73.00 2 .64 2 .57 328 .57 47 0 .00 0 .00 62.48 67.72 2.62 2.54 328.54 48 0 .00 0 .00 57.28 62.48 2.60 2 .52 328 .52 49 0 .00 0 .00 52 .13 57.28 2 .58 2.49 328.49 50 0 .00 0 .00 47.05 52 .13 2 .54 2.43 328 .43 51 0 .00 0 .00 42 .27 47 .05 2 .39 2 .28 328.28 52 0 .00 0 .00 37.97 42 .27 2 .15 2 .05 328.05 53 0 .00 0 .00 34.11 37.97 1 .93 1 .84 327.84 54 0 .00 0 .00 30 .64 34.11 1.73 1 .65 327 .65 55 0 .00 0 .00 27.52 30.64 1.56 1.48 327.48 56 0 .00 0 .00 24.72 27 .52 1.40 1.33 327.33 57 0 .00 0 .00 22.21 24.72 1.26 1 .20 327 .20 58 0.00 0 .00 19.95 22 .21 1.13 1.08 327.08 59 0 .00 0 .00 17 .92 19.95 1.01 0 .97 326.97 60 0 .00 0 .00 16 .10 17.92 0 .91 0 .87 326.87 SOUTHWEST BUSINESS CENTER -PAGE 24 i ~ al C) ... ca .c: (.) U) i5 Inflow/Outflow Simulation 5-Year Storm Event 12.00 ----~---~---~--~---~--~ 10.00 8 .00 6 .00 4 .00 0 l ' ' ' ' ' ' ' ' ' ' ' ' 10 20 30 4 0 Time (Minutes) ---Pre-Development Hydrog raph Post-Development OutflCM' Hydrograph Without Detention ---Post-Development OutflCM' With Detention -- - - - -Post-Development "Free-Flo.v'' SOUTHWEST BUSINESS CE NTER -PAGE 25 50 60 Inflow I Outflow Simulation 10-Year Storm Event Time Inflow 11+ 12 2s/t-O 2s/t+O Outflow Depth Elevation (Minutes) (Ft3/Sec) (Ft3/Sec) (Feet) 0 0.00 0.00 0.00 0.00 0.00 0.00 326 .00 1 1.10 1.10 0.99 1.10 0 .06 0 .05 326 .05 2 2.21 3.31 3.86 4 .30 0.22 0.21 326.21 3 3.31 5.52 8.43 9.38 0.48 0.45 326.45 4 4.41 7.72 14.51 16.15 0.82 0.78 326.78 5 5.52 9.93 21.95 24 .44 1.24 1.18 327 .18 6 6 .62 12.14 30 .63 34 .09 1.73 1.65 327 .65 7 7 .72 14.35 40.40 44 .97 2 .29 2.18 328.18 8 8.83 16.55 51 .80 56.95 2 .58 2.49 328.49 9 9.93 18.76 65.29 70 .56 2.63 2.56 328.56 10 11 .03 20.97 80.93 86.26 2.67 2.61 328 .61 11 10.48 21 .52 97 .04 102.44 2.70 2.66 328 .66 12 9 .93 20.41 111.99 117.45 2 .73 2.71 328.71 13 9.38 19.31 125.78 131 .30 2 .76 2 .75 328.75 14 8 .83 18 .21 138.40 143 .98 2 .79 2 .79 328.79 15 8.28 17.10 149.88 155.51 2 .81 2.82 328 .82 16 7.72 16.00 160 .21 165.88 2 .83 2 .85 328 .85 17 7.17 14.90 169.41 175.11 2.85 2 .87 328.87 18 6 .62 13.79 177.49 183.20 2 .86 2 .89 328 .89 19 6 .07 12 .69 184.45 190.18 2 .87 2.90 328 .90 20 5.52 11.59 190.29 196.03 2.87 2 .91 328 .91 21 4 .97 10.48 195 .02 200 .77 2 .88 2 .91 328 .91 22 4 .41 9.38 198 .65 204.40 2.88 2.92 328 .92 23 3.86 8.28 201 .16 206 .92 2 .88 2.92 328 .92 24 3.31 7.17 202.57 208.33 2 .88 2 _92 328 .92 25 2 .76 6 .07 202.87 208.64 2 .88 2.92 328.92 26 2.21 4 .97 202.08 207.84 2 .88 2.92 328 .92 27 1.66 3.86 200.18 205.94 2.88 2.92 328 .92 28 1.10 2.76 197.18 202.94 2.88 2 .92 328 .92 29 0.55 1.66 193.09 198.84 2 .87 2.91 328 .91 30 0.00 0.55 187.91 193.64 2 .87 2.90 328 .90 31 0.00 0.00 182 .18 187.91 2 .86 2 .89 328 .89 32 0.00 0.00 176.47 182.18 2.86 2.88 328 .88 33 0.00 0.00 170.76 176.47 2.85 2.88 328 .88 34 0.00 0.00 165.07 170.76 2 .85 2 .87 328 .87 35 0 .00 0 .00 159.40 165.07 2 .83 2.85 328 .85 36 0 .00 0.00 153.76 159.40 2 .82 2.83 328 .83 37 0.00 0.00 148.14 153.76 2 .81 2 .81 328 .81 38 0.00 0 .00 142.55 148.14 2 .80 2 .80 328 .80 39 0.00 0.00 136.98 142 .55 2 .79 2.78 328 .78 40 0.00 0.00 131.43 136.98 2.77 2.76 328 .76 41 0.00 0.00 125.90 131.43 2 .76 2.75 328.75 42 0.00 0.00 120.40 125.90 2 .75 2 .73 328.73 43 0.00 0.00 114.92 120.40 2 .74 2 .71 328.71 44 0.00 0.00 109.47 114.92 2 .73 2 .70 328 .70 45 0.00 0.00 104 .03 109.47 2 .72 2.68 328 .68 SOUTI-tW EST BUSINESS CENTER -PAGE 26 46 0.00 0.00 98.62 104.03 2.70 2.66 328.66 47 0.00 0.00 93.24·' 98.62 2.69 2.65 328.65 48 0.00 0.00 87.&7 93.24 2.68 2.63 328.63 49 0.00 0.00 82.53 87.87 2.67 2.62 328.62 50 0.00 0.00 1r.21 82.53 2.66 2.60 328.60 51 0.00 0.00 71.91 77.21 2.65 2.58 328.58 52 0.00 0.00 66.64 71.91 2.64 2.57 328.57 53 0.00 0.00 61.41 66.64 2.62 2.54 328.54 54 0.00 0.00 56.22 61.41 2.59 2.51 328.51 55 0.00 0.00 51.08 56.22 2.57 2.48 328.48 56 0.00 0.00 46.03 51.08 2.52 2.41 328.41 57 0.00 0.00 41.35 46.03 2.34 2.23 328.23 58 0.00 0.00 37.15 41.35 2.10 2.00 328.00 59 0.00 0.00 33.37 37.15 1.89 1.80 327.80 qQ 0.00 0.00 29.97 33.37 1.70 1.62 327.62 SOUTHWEST BUSINESS CENTER -PAGE 27 i .£. Q) C) ... ns .i::. CJ Ill c Inflow/Outflow Sim ul ation 10-Year Storm Even t 14 .00 12 .00 10 .00 8 .00 6.00 4.00 2 .00 0 .00 ' • ' • ' • ' • ' . • • ' • ' • ' • ' • ' • ' . ' • ' • ' • ' • ' • ' • ' • • ' • ' • ' • ' • I\ ) ' • • • \ ' • ' • ' • • '( ........... \~ ' • ' • 0. ..... ' ' ' ' ... ... ' . . . . .. . -. ' 0 . . 10 20 30 40 Time (Minu tes) ---Pre-Development Hydrograph Post-Development Outflow Hydrograph Without Detention --•Post-Development Outflow With Detenti on • • -• • ·Post-Development "Free-Flow" SOUTHWEST BUSINESS CENTER -PAGE 28 -, ' 50 60 Inflow I Outflow Simulation 25-Year Storm Event Time Inflow 11+ 12 2s/t-O 2s/t+O Outflow Depth Elevation (Minutes) (Ft3/Sec) (Ft3/Sec) (Feet) 0 0.00 0.00 0.00 0.00 0.00 0.00 326.00 1 1.26 1.26 1.13 1.26 0.06 0.06 326.06 2 2.52 3.78 4.41 4.91 0.25 0.24 326.24 3 3.78 6.30 9.62 10.71 0.54 0.52 326.52 4 5.04 8.82 16.57 18.45 0.94 0.89 326.89 5 6.30 11.34 25.07 27.91 1.42 1.35 327.35 6 7.56 13.86 34.98 38.94 1.98 1.88 327.88 7 8.82 16.38 46.31 51.36 2.53 2.42 328.42 8 10.08 18.90 60.00 65.22 2.61 2.53 328.53 9 11.34 21.43 76.11 81.42 2.66 2.60 328.60 10 12.60 23.95 94.66 100.05 2.70 2.65 328.65 11 11.97 24.58 113.76 119.24 2.74 2.71 328.71 12 11.34 23.32 131.53 137.08 2.77 2.76 328.76 13 10.71 22.06 147.97 153.58 2.81 2.81 328.81 14 10.08 20.79 163.08 168.76 2.84 2.86 328.86 15 9.45 19.53 176.90 182.61 2.86 2.89 328.89 16 8.82 18.27 189.43 195.17 2.87 2.90 328.90 17 8.19 17.01 200.69 206.45 2.88 2.92 328.92 18 7.56 15.75 210.66 216.44 2.89 2.94 328.94 19 6.93 14.49 219.36 225.15 2.90 2.95 328.95 20 6.30 13.23 226.78 232.59 2.91 2.96 328.96 21 5.67 11.97 232.93 238.75 2.91 2.97 328.97 22 5.04 10.71 237.81 243.64 2.92 2.98 328.98 23 4.41 9.45 241.43 247.27 2.92 2.98 328.98 24 3.78 8.19 243.78 249.62 2.92 2.98 328.98 25 3.15 6.93 244.86 250.71 2.92 2.99 328.99 26 2.52 5.67 244.69 250.54 2.92 2.99 328.99 27 1.89 4.41 243.26 249.10 2.92 2.98 328.98 28 1.26 3.15 240.58 246.41 2.92 2.98 328.98 29 0.63 1.89 236.64 242.47 2.91 2.97 328.97 30 0.00 0.63 231.45 237.27 2.91 2.97 328.97 31 0.00 0.00 225.64 231.45 2.90 2.96 328.96 32 0.00 0.00 219.85 225.64 2.90 2.95 328.95 33 0.00 0.00 214.06 219.85 2.89 2.94 328.94 34 0.00 0.00 208.28 214.06 2.89 2.93 328.93 35 0.00 0.00 202.52 208.28 2.88 2.92 328.92 36 0.00 0.00 196.77 202.52 2.88 2.91 328.91 37 0.00 0.00 191.02 196.77 2.87 2.91 328.91 38 0.00 0.00 185.29 191.02 2.87 2.90 328.90 39 0.00 0.00 179.57 185.29 2.86 2.89 328.89 40 0.00 0.00 173.86 179.57 2.86 2.88 328.88 41 0.00 0.00 168.16 173.86 2.85 2.87 328.87 42 0.00 0.00 162.48 168.16 2.84 2.86 328.86 43 0.00 0.00 156.83 162.48 2.83 2.84 328.84 44 0.00 0.00 151.19 156.83 2.82 2.82 328.82 45 0.00 0.00 145.59 151.19 2.80 2.81 328.81 SOUTHWEST BUSINESS CENTER -PAGE 29 46 0.00 0.00 140.00 145.59 2.79 2.79 328.79 47 0.00 0.00 134.44 140.00 2.78 2.77 328.77 48 0.00 0.00 128.90 134.44 2.77 2.76 328.76 49 0.00 0.00 123.39 128.90 2.76 2.74 328.74 50 0.00 0.00 117.90 123.39 2.75 2.72 328.72 51 0.00 0.00 112.43 117.90 2.73 2.71 328.71 52 0.00 0.00 106.98 112.43 2.72 2.69 328.69 53 0.00 0.00 101.56 106.98 2.71 2.67 328.67 54 0.00 0.00 96.16 101.56 2.70 2.66 328.66 55 0.00 0.00 90.79 96.16 2.69 2.64 328.64 56 0.00 0.00 85.43 90.79 2.68 2.62 328.62 57 0.00 0.00 80.10 85.43 2.67 2.61 328.61 58 0.00 0.00 74.79 80.10 2.65 2.59 328.59 59 0.00 0.00 69.50 74.79 2.64 2.58 328.58 60 0.00 0.00 64.25 69.50 2.63 2.55 328.55 SOUTHWEST BUSINESS CENTER -PAGE 30 Inflow/Outflow Simulation 25-Year Storm Event 5.00 4.50 4.00 3.50 3 .00 -~ ....... cu e' 2.50 IQ .c ~ Q 2.00 1.50 1.00 0.50 0 .00 ' ' ' ' I l I ' • ' I ' I ' ' ' I - I ' ' ' I ' I ' . ' ' ' I \ I ' I . • \ • I ' ' ' • I ' ' ' ' I ' - ' ' ' I ' I ' • - ' ' I I I \ ' ~t-... I ~ ~ ~', 0 10 20 30 40 Time (Minutes) ---Pre-Development Hydrograph Post-Development Outflow Hy drograph Without Detention ---Post-Development Outflow With Detention ------Post-Developme nt "Free-Row" SOlJTHWEST BUSINESS CENTER -PAGE 31 50 60 Time Inflow (Minutes) (Ft3/Sec) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 0.00 0.52 1.03 1.55 2.06 2.58 3.09 3.61 4.12 4.64 5.15 4.89 4.64 4.38 4.12 3.86 3.61 3.35 3.09 2.83 2.58 2.32 2.06 1.80 1.55 1.29 1.03 0.77 0.52 0.26 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11+ 12 0.00 0.52 1.55 2.58 3.61 4.64 5.67 6.70 7.73 8.76 9.79 10.04 9.53 9.01 8.50 7.98 7.47 6.95 6.44 5.92 5.41 4.89 4.38 3.86 3.35 2.83 2.32 1.80 1.29 0.77 0.26 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Inflow/ Outflow Simulation 50-Year Storm Event 2s/t-O 2s/t+O Outflow Depth Elevation 0.00 0.00 0.51 0.52 2.03 2.05 4.55 4.61 8.06 8.16 12.55 12.70 18.01 18.22 24.44 24.70 31.85 32.17 40.23 40.61 49.58 50.02 59.11 59.62 68.06 68.64 76.44 77.08 84.26 84.94 91.51 92.24 98.22 98.98 104.36 105.17 109.96 110.80 115.02 115.89 119.53 120.43 123.50 124.42 126.94 127.88 129.85 130.81 132.22 133.20 134.07 135.06 135.40 136.39 136.21 137.20 136.50 137.49 136.27 137.27 135.54 136.53 134.55 135.54 133.57 134.55 132.60 133.57 131.63 132.60 130.67 131.63 129. 71 130.67 128.76 129.71 127.81 128.76 126.87 127.81 125.94 126.87 125.01 125.94 124.09 125.01 123.17 124.09 122.26 123.17 121.35 122.26 (Ft3/Sec) 0.00 0.00 0.01 0.03 0.05 0.07 0.10 0.13 0.16 0.19 0.22 0.25 0.29 0.32 0.34 0.36 0.38 0.40 0.42 0.43 0.45 0.46 0.47 0.48 0.49 0.49 0.50 0.50 0.50 0.50 0.50 0.49 0.49 0.49 0.48 0.48 0.48 0.48 0.47 0.47 0.47 0.46 0.46 0.46 0.46 0.45 SOlJTHWEST BUSINESS CEtfTER -PAGE 32 (Feet) 0.00 0.01 0.05 0.12 0.21 0.32 0.46 0.54 0.61 0.68 0.76 0.84 0.92 0.99 1.04 1.08 1.12 1.15 1.19 1.22 1.24 1.26 1.28 1.30 1.31 1.33 1.33 1.34 1.34 1.34 1.33 1.33 1.32 1.32 1.31 1.31 1.30 1.29 1.29 1.28 1.28 1.27 1.27 1.26 1.26 1.25 328.00 328.01 328.05 328.12 328.21 328.32 328.46 328.54 328.61 328.68 328.76 328.84 328.92 328.99 329.04 329.08 329.12 329.15 329.19 329.22 329.24 329.26 329.28 329.30 329.31 329.33 329.33 329.34 329.34 329.34 329.33 329.33 329.32 329.32 329.31 329.31 329.30 329.29 329.29 329.28 329.28 329.27 329.27 329.26 329.26 329.25 46 0.00 0.00 184.59 190.32 2 .87 2 .90 328 .90 47 0.00 0.00 178.87 184.59 2 .86 2 .89 328 .89 48 0.00 0.00 173.16 178.87 2 .85 2 .88 328 .88 49 0.00 0.00 167.47 173 .16 2 .85 2 .87 328 .87 50 0 .00 0 .00 161 .79 167.47 2.84 2.86 328 .86 51 0.00 0.00 156.14 161 .79 2 .83 2 .84 328 .84 52 0.00 0.00 150.51 156.14 2 .81 2 .82 328 .82 53 0.00 0.00 144.90 150.51 2 .80 2 .80 328 .80 54 0.00 0.00 139.32 144.90 2 .79 2 .79 328 .79 55 0.00 0.00 133 .76 139 .32 2 .78 2 .77 328 .77 56 0.00 0.00 128.23 133.76 2 .77 2 .75 328 .75 57 0 .00 0 .00 122 .72 128 .23 2 .76 2 .74 328 .74 58 0 .00 0 .00 117.23 122 .72 2 .74 2 .72 328 .72 59 0 .00 0 .00 111 .76 117.23 2 .73 2 .70 328 .70 60 0.00 0 .00 106 .32 111 .76 2 .72 2 .69 328 .69 SOUTI-tWEST BUSINESS CENTER -PAGE 33 Inflow/Outflow Simulation SO-Year Storm Event 6 .00 5.00 4.00 -it ........ cu e' 3.00 ca .c ~ Q 2.00 1.00 0.00 I . ' ' \ I ' ' ' I ' I ' ' ' . . I ' ' ' I \ I ' I ' I ' ' ' . ' I ' ' \ ' ' ' I ' I ' I \ ' ' ' \ ' ' ' ' I ' I ' I ' I t I ' I ' ~ ~ \ ~ \ ~' 0 10 20 30 40 Time (Minutes) ---Pre-Development Hydrograph Post-Development Outflow Hydrograph Without Detention ---Post-Development Outflow With Detention • • • • • • Post-Development "Free-Row" SOlJTHWEST BUSINESS CENTER -PAGE 34 50 60 Time Inflow (Minutes) (Ft3/Sec) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2 1 22 23 24 25 26 27 28 29 30 3 1 32 33 34 35 36 37 38 39 40 41 42 43 44 45 0.00 0 .58 1.16 1.75 2 .33 2.91 3 .49 4 .07 4 .66 5.24 5.82 5 .53 5 .24 4.95 4 .66 4 .37 4 .07 3.78 3.49 3 .20 2.91 2 .62 2.33 2.04 1.75 1.46 1.16 0 .87 0 .58 0 .29 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0.00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 11+ 12 0.00 0 .58 1.75 2 .91 4 .07 5.24 6 .40 7.57 8.73 9 .90 11 .06 11 .35 10.77 10 .19 9 .60 9.02 8.44 7 .86 7 .28 6 .69 6 .11 5.53 4 .95 4 .37 3.78 3.20 2 .62 2 .04 1.46 0 .87 0.29 0.00 0.00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0.00 0 .00 0 .00 0 .00 0 .00 Inflow I Outflow Simulation 100-Year Storm Event 2s/t-O 2s/t+O Outflow Depth Elevation 0 .00 0 .00 0 .58 0.58 2 .30 2.32 5.15 5.21 9 .11 9 .22 14 .19 14 .35 20 .36 20 .59 27 .64 27 .93 36 .03 36 .37 45 .51 45 .92 56 .08 56 .57 66 .87 67.44 77 .00 77 .64 86 .49 87.19 95 .35 96 .10 103.57 104.37 111.17 112 .01 118.14 119.03 124.49 125.42 130.22 131 .18 135.35 136 .34 139 .86 140.88 143.77 144 .81 147.07 148.13 149.78 150.85 151 .89 152.98 153 .41 154.51 154.34 155.45 154.69 155.80 154.46 155.57 153.65 154.75 152 .56 153.65 151 .47 152.56 150.39 151 .47 149.32 150.39 148.25 149 .32 147 .19 148.25 146.13 147.19 145.08 146.13 144.04 145.08 143 .00 144.04 141 .97 143.00 140.95 141 .97 139.93 140.95 138.92 139.93 137.91 138.92 (Ft3/Sec) 0 .00 0 .00 0.01 0 .03 0 .05 0 .08 0 .12 0 .14 0 .17 0 .21 0 .24 0 .28 0 .32 0 .35 0 .37 0.40 0.42 0 .44 0 .46 0.48 0 .50 0 .51 0 .52 0.53 0 .54 0 .54 0 .55 0 .55 0 .55 0 .55 0 .55 0 .55 0 .54 0 .54 0 .54 0.53 0.53 0 .53 0 .52 0.52 0 .52 0 .52 0 .51 0 .51 0 .51 0 .50 SOlfTHWEST BUSINESS CENTER -PAGE 35 (Feet) 0 .00 0 .01 0 .06 0 .13 0.23 0 .36 0.51 0 .57 0.64 0 .72 0 .81 0 .91 0 .99 1.05 1.10 1.15 1.19 1.23 1.27 1.30 1.33 1.36 1.38 1.40 1.41 1.42 1.43 1.43 1.43 1.43 1.43 1.42 1.42 1.41 1.41 1.40 1.40 1.39 1.38 1.38 1.37 1.37 1.36 1.36 1.35 1.35 328.00 328 .01 328 .06 328 .13 328 .23 328.36 328 .51 328 .57 328 .64 328 .72 328.81 328.91 328 .99 329 .05 329 .10 329 .15 329 .19 329 .23 329 .27 329 .30 329 .33 329 .36 329 .38 329 .40 329 .41 329 .42 329.43 329 .43 329.43 329 .43 329.43 329 .42 329.42 329 .41 329 .41 329 .40 329.40 329 .39 329 .38 329 .38 329 .37 329 .37 329 .36 329.36 329 .35 329 .35 46 0.00 0.00 235.36 241.19 2.91 2.97 328.97 47 0.00 0.00 229.55 235.36 2.91 2.96 328.96 48 0.00 0.00 223.74 229.55 2.90 2.95 328.95 49 0.00 0.00 217.95 223.74 2.90 2.95 328.95 50 0.00 0.00 212.17 217.95 2.89 2.94 328.94 51 0.00 0.00 206.40 212.17 2.89 2.93 328.93 52 0.00 0.00 200.63 206.40 2.88 2.92 328.92 53 0.00 0.00 194.88 200.63 2.87 2.91 328.91 54 0.00 0.00 189.15 194.88 2.87 2.90 328.90 55 0.00 0.00 183.42 189.15 2.86 2.90 328.90 56 0.00 0.00 177.70 183.42 2.86 2.89 328.89 57 0.00 0.00 171.99 177.70 2.85 2.88 328.88 58 0.00 0.00 166.30 171.99 2.85 2.87 328.87 59 0.00 0.00 160.63 166.30 2.84 2.85 328.85 60 0.00 0.00 154.98 160.63 2.82 2.84 328.84 SOUTHWEST BUSINESS CENTER • PAGE 36 i ~ Q) C> ... cu .c CJ Ill c Inflow/Outflow Simulation 100-Year Storm Event 18 .00 16 .00 14 .00 12 .00 10 .00 8 .00 6 .00 4 .00 2 .00 0 .00 ., ' ' I I I ' I ' ' ' ' I ' ' I ' ' ' ' ' --. ' ' • ' ' ' ' ' I ' ' ' I ' ' ' ' ' ' • ' ' ' ' I~ ' . I \ . ' ' ' ' I ' I ' !Ir \ ' ' \ \ - ' ' !) .... . . . . -.. \ . . . . . . .. 0 10 20 30 40 Time (Minutes) ---Pre-Development Hydrograph Post-Development Outflcm Hydrograph Without Detenti on --•Post-Development Outflcm With Detention • • - - - -Post-Development "Free-F lem" SOUTHWEST BUSINESS CENTER -PAG E 37 50 60 Inflow/Outflow Simulation 2-Year Storm Event l 2.00 ~ Q) e IV .c (.) Ill Ci 1.50 0 10 20 30 40 50 60 Time (Minutes) --Pr&-Development Hydrograph -Total Post-Development Hydrograph SOUTHWEST BUSINESS CENTER -PAGE 38 Inflow/Outflow Simulation 5-Year Storm Event ....... it ....... QJ e o .25+--~--+~-t---JJ------'lr-+-~~~-1--~~~--+~~~--+~~~-----1 IU .r: ~ c 0.00 ~--~1-----+----+---~1-----+------1 0 10 20 30 40 50 60 Time (Minutes) --Pre-Development Hydrograph -Total Post-Development Hydrograph SOlJTHWEST BUSINESS CE NTER -PAGE 39 i ~ Q) Inflow/Outflow Simulation 10-Year Storm Event ~ 2 .so--~~J---+-~~~l-+-~~~-+-~~~-+~~~---+~~-..---1 ~ CJ I/I c 0 10 20 30 40 50 60 Time (Minutes) --Pre-Development Hyd rograph -Total Post-Development Hydrograp h SOUTHWEST BUSINESS CENTER -PAGE 40 Inflow/Outflow Simulation 25-Year Storm Event i ~ Q) 6 .00 5.00 4 .00 2' 3.00 "' ~ CJ "' i5 2.00 1.00 0.00 -~ I 1 ~ \ ' \ 0 10 20 30 40 50 Time (Minutes) --Pre-Development Hydrograph -Total Post-Development Hydrograph SOUTHWEST BUSINESS CENTER -PAGE 41 ........... 60 Inflow/Outflow Simulation 50-Year Storm Event 7 .00 6 .00 5 .00 -4.00 ~ Cl) 2> IV .c u I/) c 3.00 2 .00 1.00 0 .00 \ --.._ I ~ \ ~ 0 10 20 30 40 50 Time (Minutes) --Pre-Development Hydrograph -Total Post-Development Hydrograph SOUTHWEST BUSINESS CE NTER -PAGE 42 - 60 Inflow/Outflow Simulation 100-Year Storm Event 7 .00 6 .00 5 .00 -4 .00 J!? ~ Q) e ca ~ CJ Ill 0 3 .00 2 .00 1 .00 0 .00 \ ;N ~ I 0 10 20 30 40 50 Time (Minutes) --Pre-Development Hydrograph -Total Post-Development Hydrograph SOUTHWEST BUS INESS CENTER - PAGE 43 60 Detention Pond Storage Volumes as Percent of Maximum Volume 100% 90% 80% 70% 60% % Capacity 50% 40% 30% 20% 10% 0% Storm Depth Storm Elevation Storm Volume Maximum Capacity Percent of Capacity Over-Flow Elevation Freeboard Storm Frequency 2-Year Storm Event: 5-Year Storm Event: 10-Year Storm Event: 25-Year Storm Event: 50-Year Storm Event: 100-Year Storm Event: 2-year 5-year 10-year 25-year 50-year Design Storm Storm Simulation Synopsis 2-ear 5-ear 10-ear 25-ear 2 .75 2 .88 2.92 2 .99 328.75 328.88 328.92 328.99 3908 7434 5151 6173 15206 15206 15206 15206 26% 329.37 0 .62 Ft. 34% 41% 329.37 329.37 0 .49 Ft. 0.45 Ft. Predevelopment (Peak Discharge Rates) 3 .30 Cu . Ft./Sec . 4 .02 Cu . Ft./Sec . 4 .51 Cu . Ft./Sec . 5.15 Cu . Ft./Sec . 5 .82 Cu . Ft./Sec . 6 .58 Cu . Ft./Sec . 49% 329 .37 0.38 Ft. 329.05 329.13 8785 10323 15206 15206 58% 68% 329.37 329.37 0 .32 Ft. 0.24 Ft. Postdevelopment (Peak Discharge Rates ) 2. 77 Cu . Ft./Sec . 2 .85 Cu . Ft./Sec . 2.88 Cu . Ft./Sec . 2.92 Cu . Ft./Sec . 2 .96 Cu . Ft./Sec . 3.01 Cu . Ft./Sec . As can be seen from the tabulation above the postdevelopment peak d ischarge rates have been reduced from the predevelopment peak discharge rates due to the incorporation of Detention Pond #2 . SOUTHWEST BUSINESS CENTER -PAGE 44 100-year