Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Stormwater Management Report
STORMWATER MANAGEMENT REPORT FOR CORINTH ROAD U-STORE IT 2 398 Corinth Road Town of Queensbury Warren County,New York Prepared For: TNT Corinth Road LLC P.O. Box 752 Lake George,NY 12845 June 15, 2018 Project No. 5010A Prepared By: Thomas C. Andress, P.E. ABD Engineers, LLP 411 Union Street Schenectady,NY 12305 (518) 377-0315 STORMWATER MANAGEMENT REPORT CORINTH ROAD U-STORE IT 2 398 Corinth Road Town of Queensbury Warren County, New York TABLE OF CONTENTS ITEM PAGE PROJECT LOCATION...........................................................................................I GENERAL SITE DEVELOPMENT.......................................................................I SOIL TYPES, GROUNDWATER &TOPOGRAPHY...........................................I STORMWATER MANAGEMENT PLAN............................................................I ANALYSIS..............................................................................................................2 SUMMARY.............................................................................................................3 EXHIBIT 1: SITE LOCATION MAP ........................................................Attached EXHIBIT 2: POST-DEVELOPMENT DRAINAGE MAP........................Attached APPENDIX A: STORMWATER CALCULATIONS ..............................Attached STORMWATER MANAGEMENT REPORT CORINTH ROAD U-STORE IT 2 398 Corinth Road Town of Queensbury Warren County,New York PROJECT LOCATION The proposed self storage buildings are located at 398 Corinth Road in the Town of Queensbury, Warren County,New York(see Exhibit 1). The site is bordered on the west by commercial property, on the south by Corinth Road, on the east by residential houses, and on the north by woods. GENERAL SITE DEVELOPMENT The applicant is proposing to develop 3.8± acres in order to construct 12 self storage buildings, associated pavement, and stormwater management areas. The existing restaurant will remain and the new development will be located beyond the existing parking lot. SOIL TYPES, GROUNDWATER& TOPOGRAPHY According to the Warren County NRCS, the primary hydrologic soil group is type A, loamy fine sand. The existing site drains to low points onsite and infiltrates. STORMWATER MANAGEMENT PLAN The stormwater management plan for the proposed project will utilize surface sheet flow across pavement and rooftops to the infiltration areas as shown on the site plans. Post-development discharge will be controlled with detention of the entire 100- year storm event and all runoff remaining onsite. ABD Engineers,LLP Corinth Road U-Store It 2 5010A-SMR Page I ANALYSIS The post-development drainage map is located in Exhibit 2. HydroCAD TR-20 method is utilized for the stormwater analysis. Stormwater calculations for the post- development conditions are presented in Appendix A. In the pre-development condition, the site is made up of low points which collect runoff and allows infiltration into the well-drained soil. The offsite discharge is assumed to be zero. In the post-development condition, there are seven drainage areas (refer to Exhibit 2). Post Area 1 is 2.28±acres and consists of impervious rooftop, pavement and grass areas. The peak runoff rates to infiltration basin 1 for the 1, 10, and 100-year storm events are 2.13± cfs, 6.27± cfs, and 13.50±cfs respectively with a time of concentration of 6 minutes and a CN value of 77. The required 100-year storage volume is 14,383± cubic feet and the infiltration basin provides 19,860± cubic feet. The entire 100-year storm infiltrates and there is no offsite discharge. Post Area 2 is 0.94±acres and consists of impervious rooftop, pavement and grass areas. The peak runoff rates to infiltration basin 2 for the 1, 10, and 100-year storm events are 1.62± cfs, 3.61±cfs, and 6.77± cfs respectively with a time of concentration of 6 minutes and a CN value of 86. The required 100-year storage volume is 7,380± cubic feet and the infiltration basin provides 13,070± cubic feet. The entire 100-year storm infiltrates and there is no offsite discharge. Post Area 3 is 0.65±acres and consists of impervious rooftop,pavement, woods and grass areas. The peak runoff rates to infiltration trench 3 for the 1, 10, and 100-year storm events are 0.00±cfs, 0.23± cfs, and 1.46±cfs respectively with a time of concentration of 6 minutes and a CN value of 53. The required 100-year storage volume is 1,300± cubic feet and the infiltration trench provides 1,318± cubic feet. The entire 100- year storm infiltrates and there is no offsite discharge. Post Area 4 is 0.10± acres and consists of impervious pavement, woods and grass areas. The peak runoff rates to infiltration basin 4 for the 1, 10, and 100-year storm events are 0.04± cfs, 0.19± cfs, and 0.48± cfs respectively with a time of concentration of 6 minutes and a CN value of 70. The required 100-year storage volume is 421± cubic feet ABD Engineers,LLP Corinth Road U-Store It 2' 5010A-SMR Page 2 and the infiltration basin provides 666± cubic feet. The entire 100-year storm infiltrates and there is no offsite discharge. Post Area 5 is 0.45±acres and consists of impervious rooftop,pavement, and woods. The peak runoff rates to infiltration trench 5 for the 1, 10, and 100-year stone events are 0.00±cfs, 0.30±cfs, and 1.28± cfs respectively with a time of concentration of 6 minutes and a CN value of 57. The required 100-year storage volume is 1,152± cubic feet and the infiltration trench provides 1,174::L cubic feet. The entire 100-year storm infiltrates and there is no offsite discharge. Post Area 6 is 0.27± acres and consists of impervious pavement, woods and grass areas. The peak runoff rates to infiltration basin 6 for the 1, 10, and 100-year storm events are 0.00±cfs, 0.03±cfs, and 0.44±cfs respectively with a time of concentration of 6 minutes and a CN value of 49. The required 100-year storage volume is 350±cubic feet and the infiltration basin provides 360± cubic feet. The entire 100-year storm infiltrates and there is no offsite discharge. Post Area 7 is 0.65± acres and consists of impervious pavement, woods and grass areas. The peak runoff rates to infiltration basin 7 for the 1, 10, and 100-year storm events are 0.15±cfs, 0.99±cfs, and 2.76±cfs respectively with a time of concentration of 6 minutes and a CN value of 66. The required 100-year storage volume is 2,6071 cubic feet and the infiltration basin provides 3,395:L cubic feet. The entire 100-year storm infiltrates and there is no offsite discharge. SUMMARY The post-development runoff infiltrates onsite and results in zero peak discharge rates up to the 100-year storm event. The stormwater management plan will meet the needs of the project and the Town of Queensbury. The stormwater management plan will function adequately and will not adversely affect adjacent or downstrk4m properties. ABD Engineers,LLP Corinth Road U-Store It 2 5010A-SMR Page 3 EXHIBIT 1: SITE LOCATION MAP O i i . ...... , -- -------- A'A •Fi'I� � ® 1 9eKmav I � _ EXHIBIT 2: POST-DEVELOPMENT DRAINAGE MAP ova AG I, cn cn N �i3 i N SIR cn I r I ® +I m " C\ r O J \a "aa 4r— lLn I P� Lo - Y DO a cn cn cn M p - ;WSJ J = H U ICI Tit H 8 p„{ LO ; E%U Ak ItI L g P-a oo �I� APPENDIX A: STORMWATER CALCULATIONS POST-DEVELOPMENT 1P 2P , 7P , INFILTRAIN BASIN 1 INFILTRAIN BASIN 2 INFILTRAIN BASIN 7 POST 1 POST 2 POST 7 3S 4S 5S 6S POT 3 POT 4 POT 5 POT 6 3P 4P 5P 6P, INFILTRATION INFILTRATION BASIN 4 INFILTRATION INFILTRATION BASIN 6 TRENCH 3 TRENCH 5 t� G)at jUnKI Routing Diagram for 5010A-HydroCAD Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC 5010A-HydroCAD Type II24-hr^ 1-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HydroCAU 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: POST 1 Runoff = 2.13 cfs @ 11.98 lirs, Volume-- 4,622 cf, Depth= 0,56" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span-—0.00-36.00 hrs, dt=0.05 hrs Type H 24-hr 1-YEAR Rainfall=2.20" Area(sf) CN Description 16,836 98 Roofs,HSG A 46,346 98 Paved parking,HSG A 35,942 39 >75%Grass cover, Good,HSG A 99,124 77 Weighted Average 35,942 36.26%Pervious Area 63,182 63.74%Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 1S: POST 1 Hydrograph , 0 Runoff '2.13 ds f ---I-- '---:--- -- -------------- - - ----- ---------- ------- - "-- 'T: I!I 24-h r 2- I-YEAR ;Rainfall=2.20" Rundff Area=99 124 sf Ru! hoff'Volume=4 622 d : Runoff D',epth'=0.56" LL : : C' Nw"7 0 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 Time (hours) 5010A-HydroCAD Type II24-hr 1-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 0 2016 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: POST 2 Runoff = 1.62 cfs @ 11.97 hrs, Volume= 3,409 cf, Depth= 1.00" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span-—0.00-36.00 hrs, dt=0.05 hrs Type H 24-hr 1-YEAR Rainfall=2.20" Area(sf) CN Description 13,376 98 Roofs,HSG A 18,979 98 Paved parking,HSG A 8,425 39 >75%Grass cover,Good,HSG A 40,780 86 Weighted Average 8,425 20.66%Pervious Area 32,355 79.34%Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 2S: POST 2 Hydrograph Runoff 1.62'.cfs Type I,I 24-n r I-YEAR Rainfall=2.20" Runoff Area=40,70 Of � vo ='14. tll 1 l Run0ffD,e0th 1.00" Td;6.0 min CAI"$G 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 2930 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type II24-hr I-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HydroCADOO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: POST 3 Runoff = 0.00 cfs @ 23.95 lrs, Volume= 46 cf, Depth-- 0.02" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span—0.00-36.00 hrs,dt=0.05 hrs Type H 24-hr 1-YEAR Rainfall=2.20" Area(sD CN Description 8,500 98 Roofs,HSG A 498 98 Paved parking,HSG A 19,322 32 Woods/grass comb.,Good,HSG A 28,320 53 Weighted Average 19,322 68.23%Pervious Area 8,998 31.77%Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 3S: POST 3 Hydrograph 0.002 L._. 0.00 cfs 0.001 T e 11 :2.4-h.r........................;....;..... 0.001 1=YEAR RarnMII=2 2 : 0001. Rdnbff Ar6a02,8-,32' f 0.001 'Run Vold tP0e=46 f 0.001 - -- -' _ -' 0.001 runoff �epth 0.0 3 _..... O ill T LL 0.001 ;T6"6.0 ;rra�n. ..- ... 0.001 00_ C1 .,53 ...: .00 0.000 0.000- 0- 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 Time (hours) 5010A-HydroCAD Type 1124-hr 1-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 4S: POST 4 Runoff = 0.04 cfs @ 12.00 hrs, Volume= 114 of, Depth= 0.32" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span—0.00-36.00 hrs,dt=0.05 lirs Type1124-hr 1-YEAR Rainfall=2.20" Area(sf) CN Description 2,471 98 Paved parking,HSG A 1,807 32 Woods/grass comb.,Good,HSG A 4,278 70 Weighted Average 1,807 42,24%Pervious Area 2,471 57.76%Impervious Area To Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 4S: POST 4 Hydrograph '------ -- -- ._'------7 � 0.048= _ .. ;---j..;...J._.i_. i...i.._ .. ..;_..i...i..-; i._;-._i i_ ®Runoff 0.046 ;......;...._.......i......J......1....._L..... .....0.04dra .......__.;...._i......i......:...... ......i...._i......i......;...... ...._.;......;......i.......i......i......!..... .......i......i......i......;.......i...._i......i.....;. 0.044 __� �YEARR '..� 0.038 ...... 0.036, 0.034 - -- ,-Run-off-Area-4,�78-`sf.- - 0.03 - :__ , _. Runoff Volume=114 cf 0.028 0,026 3 0.024: ,_Runoff_Depth ; 0.� , LL 0.022 0.02: - V : 0.016; —' 0.014 i ...., ......,_... 0,012 0.01 ',. ...........:....: ...... :....: 0.008 i.. 0.006 ' g 0.002 ?: , 0 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 Time (hours) 5010A-HydroCAD Type II 24-hr I-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HydroCADOO 10.00-18 s/n 00936 C 2016 HydroCAD Software Solutions LLC Summary for Subcatchment 5S: POST 5 Runoff = 0.00 cfs @ 13.34 firs, Volume= 95 cf, Depth-- 0.06" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span--0.00-36.00 hrs,dt=0.05 hrs Type II 24-hr 1-YEAR Rainfall=2.20" Area(sf) CN Description 7,500 98 Roofs,HSG A 323 98 Paved parking,HSG A 11,829 30 Woods,Good,HSG A 19,652 57 Weighted Average 11,829 60.19%Pervious Area 7,823 39.81%Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 5S: POST 5 Hydrograph : 0.003`' : : �---�---�--- --�- --� ------ --- --- ------ --- - 0.003 0.003 . - e , 1-YEAR Rainfall 2.20' 0.003 ,.... ,.._ , .. 0 002 Runoff Area 19,652 sf 0.002 0.002 , Runoff Volurrre=9a cf 0.002 .. h"- 3 0.002 LL 0.001 ...... Tc n. , , 6,01 m 0.001 0.001 .. 0.001 ; , ---. - 0.001 0.000- 0.000= 0 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 27282930 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type 1124-hr I-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 6S: POST 6 Runoff = 0.00 cfs @ 24.00 hrs, Volume= 1 of, Depth-- 0.00" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span=0.00-36.00 lirs,dt=0.05 hrs TypeII24-hr 1-YEARRainfall=2.20" Area(sf) CN Description 3,085 98 Paved parking,HSG A 1,463 39 >75%Grass cover,Good,HSG A 7,110 30 Woods, Good,HSG A 11,658 49 Weighted Average 8,573 73.54%Pervious Area 3,085 26.46%Impervious Area To Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 6S: POST 6 Hydrograph 0.000 _..:.......,.._..........:......:_.._.,......i......i..... 0.000IT ! ! ! ! ! 0:00a5 0.000 T e II,2 h r : i 0.000 o.000�- ' ,1-YEAR_R6infa I=2:20" p.Opp Runoff Area 11 658.sf : : 0.000 0 R;u�nOff Volume=l' cf w : 3£ F�un oo +�ff Dept��0 "00 ' MIN LL oW T. 7 . e , 0:' ........... 1 nn 0 : 0•' 0 !¢3 51 0 " p i 1 RI i I 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2021 2223 24 25 26 27 28 29 30 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type II 24-hr 1-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 7S: POST 7 Runoff = 0.15 cfs @ 12.01 hrs, Volume-- 510 cf, Depth= 0.22" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span--0.00-36.00 hrs,dt=0.05 lirs Type II 24-hr I-YEAR Rainfall=2.20" Area(sf) CN Description 14,572 98 Paved parking,HSG A 13,693 32 Woods/grass comb.,Good,HSG A 28,265 66 Weighted Average 13,693 48.45%Pervious Area 14,572 51.55%Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 7S: POST 7 Hydrograph 0.16-' : I 0.15 __ ._.____0.14" 4_h : 0.13-' �. y�e � r, a 0.12 - , : n�ff - : 0.1- Ru'.. Volume.:.- 51 U Cf. ? 0.09` — . .. 3 0.08- 0 0.07" ,.....;. ...._..... � 01.m in...... : : . 0.06T �* N—V 0.04 i : 0.03- 0.02 0.01'' 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2021 2223 2425 26 27 28 29 30 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type II24-hr 1-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 1P: INFILTRATION BASIN 1 Inflow Area= 99,124 sf, 63.74%Impervious, Inflow Depth= 0.56" for 1-YEAR event Inflow = 2.13 cfs @ 11.98 hrs, Volume= 4,622 cf Outflow = 0.24 cfs @ 12.49 hrs, Volume= 4,622 cf, Atten= 89%, Lag--30.6 nun Discarded = 0.24 cfs @ 12.49 hrs, Volume= 4,622 cf Routing by Stor-Ind method,Time Span=0.00-36.00 lirs,dt=0.05 hrs Peak Elev=96.51'@ 12.49 hrs Sur£Area=3,480 sf Storage= 1,470 cf Plug-Flow detention time--51.4 min calculated for 4,622 cf(100%of inflow) Center-of-Mass det. time=51.2 min(924.9-873.7) Volume Invert Avail.Storage Storage Description #1 96.00' 19,860 cf Ponding(Prismatic)Listed below(Recalc) Elevation Surf.Area Inc.Store Cuin.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 96.00 2,290 0 0 97.00 4,625 3,458 3,458 98.00 7,215 5,920 9,378 99.00 13,750 10,483 19,860 Device Routing Invert Outlet Devices #1 Discarded 96.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max--0.24 cfs @ 12.49 hrs HW=96.51' (Free Discharge) t-1=Exfiltration (Exfiltration Controls 0.24 cfs) 5010A-HydroCAD Type II 24-hr 1-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Pond 1P: INFILTRATION BASIN 1 Hydrograph Inflow I ,2,1acfs Discarded I � ow, re , _ 2 peak E1ev;=96 51' 5kdrage=1 ,47Q c w 0 024 cfs 0 0 1 2 3 4 5 6 7 8 9 1011 12 1314 15 16 17 18 19 20 2122 23 24 25 26 27 28 29 30 31 32 33 3435 36 Time (hours) 5010A-HydroCAD Type 1124-hr 1-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 2P: INFILTRATION BASIN 2 Inflow Area= 40,780 sf, 79.34%Impervious, Inflow Depth= 1.00" for 1-YEAR event Inflow = 1.62 cfs @ 11.97 hrs, Volume= 3,409 cf Outflow = 0.19 cfs @ 12.39 hrs, Volume= 3,409 cf, Atten= 88%, Lag—24.9 min Discarded = 0.19 cfs @ 12.39 hrs, Volume= 3,409 cf Routing by Stor-Ind method,Time Span--0.00-36.00 hrs, dt=0.05 hrs Pealc Elev=99.56'@ 12.39 firs Surf.Area=2,705 sf Storage-- 1,247 cf Plug-Flow detention time=55.1 min calculated for 3,404 cf(100%of inflow) Center-of-Mass det.time=55.0 min(891.8 -836.7) Volume Invert Avail.Storage Storage Description #1 99.00' 13,070 cf Ponding(Prismatic)Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 99.00 1,750 0 0 100.00 3,455 2,603 2,603 101.00 5,215 4,335 6,938 102.00 7,050 6,133 13,070 Device Routing Invert Outlet Devices #1 Discarded 99.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max=0.19 cfs @ 12.39 hrs HW=99.56' (Free Discharge) L1=Exfi1tration (Exfiltration Controls 0.19 efs) 5010A-HydroCAD Type II24-hr 1-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HydroCADOO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Pond 2P: INFILTRATION BASIN 2 Hydrograph Inflow 1.6 cfs EM Discarded 1016W Arba=40,780 0 Peak EWw-99.56' St rage='1,247 c 1 LL 0: 0.19 cfs 0 1 2 3 4 5 6 7 8 9 1011 12 1314 15 16 17 1819 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type II24-hr 1-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP H droCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 3P: INFILTRATION TRENCH 3 Inflow Area= 28,320 sf, 31.77%Impervious, Inflow Depth= 0.02" for 1-YEAR event Inflow = 0.00 cfs @ 23.95 hrs, Volume= 46 of Outflow = 0.00 cfs @ 24.00 hrs, Volume-- 46 of, Atten=0%, Lag--3.0 inin Discarded = 0.00 efs @ 24.00 hrs, Volume-- 46 of Routing by Stor-Ind method,Time Span--0.00-36.00 hrs,dt=0.05 hrs Peals Elev=97.00'@ 24.00 hrs Sur£Area= 1,098 sf Storage=0 of Plug-Flow detention time--3.1 min calculated for 46 of(100%of inflow) Center-of-Mass det. time=3.1 min( 1,166.7 - 1,163.6) Volume Invert Avail.Storage Storage Description #1 100.00, 275 of Ponding(Prismatic)Listed below(Recalc) #2 97.00' 1,318 of 3.001W x 366.001L x 3.00'H Stone 3,294 of Overall x 40.0%Voids 1,592 of Total Available Storage Elevation Sur£Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 100.00 1,098 0 0 100.25 1,098 275 275 Device Routing Invert Outlet Devices #1 Discarded 97.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max=0.08 cfs @ 24.00 hrs HW=97.00' (Free Discharge) L1=Exfiltration (Exfiltration Controls 0.08 cfs) 5010A-HydroCAD Type II24-hr 1-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Pond 3P: INFILTRATION TRENCH 3 Hydrograph .., - ..... .'_.. . .... .. Inflow 0.00 cisIN rded 0.002 Inf!Ic w.Ar a.=28. D:OOcis 0.001 � I Peak ale =970� : 0.001 : 0.001 Storage~.p.,cf 0.001 ' 0.001 3 0.001 0.001 ' 0,001 0.000 " 0.000 0.000 " -- - - -- -- -- - ------ --- -- ------- 0.000 0.: O 1' 0 1 2 3 4 5 6 7 8 9 10 11 1213 1415 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33343536 Time (hours) 5010A-HydroCAD Type II24-hr 1-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 4P: INFILTRATION BASIN 4 Inflow Area= 4,278 sf, 57.76%hupervious, Inflow Depth= 0.32" for 1-YEAR event Inflow = 0.04 cfs @ 12.00 hrs, Volume= 114 cf Outflow = 0.02 cfs @ 12.11 hrs, Volume-- 114 cf, Atten=60%, Lag=6.8 min Discarded = 0.02 cfs @ 12.11 hrs, Volume-- 114 cf Routing by Stor-Ind method,Time Span=0.00-36.00 hrs,dt=0.05 lirs Peak Elev= 101.05'@ 12.11 hrs Sur£Area=257 sf Storage= 13 cf Plug-Flow detention time=4.9 min calculated for 114 cf(100%of inflow) Center-of-Mass det.time=4.9 min(914.9-910.0) Volume Invert Avail.Storage Storage Description #1 101.00, 666 cf Ponding(Prismatic)Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 101.00 245 0 0 102.00 475 360 360 102.50 750 306 666 Device Routing Invert Outlet Devices #1 Discarded 101.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max--0.02 cfs @ 12.11 hrs HW=101.05' (Free Discharge) L1=Exfiltration (Exfiltration Controls 0.02 cfs) 5010A-HydroCAD Type II24-hr 1-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HAroCADOO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Pond 4P: INFILTRATION BASIN 4 Hydrograph -- -- --- - -- -- --- -- - - -- -- Inflow EM :........................._,......,......;......,......;......,......,..... 0.048 .......,..... Discarded : : : 0.044'" : 0.042 - - -- 0.04 _... Peak I Eiev-101 .45' 0.038 - , -, . e ,.... ... , 0.036 �toirag 3 0,034 1 0.03' - r 0.026 ...... 3 0.024. ...... . 0 LL 0.022 _... .. : 0.02 __ '___ 0i02-Cis : 0.012 ' 0.006`' 0.004•-" 0.002 0 0 1 2 3 4 5 6 7 8 9 10 11 1213 1415 1617 18 19 20 2122 23 24 25 26 27 28 29 30 3132 33 34 35 36 Time (hours) 5010A-HydroCAD Type II 24-hr 1-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HydroCADO 10,00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 5P: INFILTRATION TRENCH 5 Inflow Area= 19,652 sf, 39.81%Impervious, Inflow Depth= 0.06" for 1-YEAR event Inflow = 0.00 cfs @ 13.34 firs, Volume-- 95 cf Outflow = 0.00 cfs @ 13.39 hrs, Volume-- 95 cf, Atten=0%, Lag=3.0 min Discarded = 0.00 efs @ 13.39 hrs, Volume= 95 cf Routing by Stor-Ind method,Time Span--0.00-36.00 hrs,dt=0.05 hrs Peak Elev=97.00'@ 13.39 hrs Sur£Area=978 sf Storage= 1 cf Plug-Flow detention time--3.1 min calculated for 95 cf(100%of inflow) Center-of-Mass det.time=3.1 min( 1,059.4- 1,056.3 ) Volume Invert Avail.Storage Storage Description #1 100.00, 245 cf Ponding(Prismatic)Listed below(Recalc) #2 97.00' 1,174 cf 3.001W x 326.001L x 3.001H Stone 2,934 cf Overall x 40.0%Voids 1,418 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 100.00 978 0 0 100.25 978 245 245 Device Routing Invert Outlet Devices #1 Discarded 97.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max=0.07 cfs @ 13.39 hrs HW=97.00' (Free Discharge) L1=Exf11tration (Exfiltration Controls 0.07 cfs) 5010A-HydroCAD Type 1124-hr 1-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HydroCAD© 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Pond 5P: INFILTRATION TRENCH 5 Hydrograph 111 Inflow ' o.00 cfs Discarded 0.003 0.00Gfs' Inh6 w Area='[g 6 2 .gf,.,.,. 0.003 9 e , 0.003- - - s. 0.003 0.0021 Stbi6 6_1 -of ........... 0.002 0.002 0.0027 0 0.002 - ----- -- --- �` 0.001' , 0.001 ...,,.....,. 0.001 0.001 0.001 0.000= 0,000 0 0 1 2 3 4 5 6 7 8 9 10 11 1213 1415 16 17 1819 20 2122 2324252627 28293031 32 33343536 Time (hours) 5010A-HydroCAD Type II 24-hr 1-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 6P: INFILTRATION BASIN 6 Inflow Area= 11,658 sf, 26.46%hupervious, hlflow Depth= 0,00" for 1-YEAR event Inflow = 0.00 cfs @ 24.00 hrs, Volume= 1 cf Outflow = 0.00 cfs @ 23.98 hrs, Volume= 1 cf, Atten=0%, Lag--0.0 min Discarded = 0.00 cfs @ 23.98 hrs, Volume= 1 cf Routing by Stor-Ind method,Time Span--0.00-36.00 hrs,dt=0.05 lirs Peak Elev= 101.00'@ 23,98 hrs Sur£Area=245 sf Storage=0 cf Plug-Flow detention time=2.4 min calculated for 1 cf(100%of inflow) Center-of-Mass det.time—2.4 min( 1,354.7- 1,352.3 ) Volume Invert Avail.Storage Storage Description #1 101.00, 360 cf Ponding(Prismatic)Listed below(Recalc) Elevation Surf Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 101.00 245 0 0 102.00 475 360 360 Device Routing Invert Outlet Devices #1 Discarded 101.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max=0.02 cfs @ 23.98 hrs HW=101.00' (Free Discharge) 't-1=Exfi1tration (Exfiltration Controls 0.02 cfs) Pond 6P: INFILTRATION BASIN 6 Hydrograph FM W1.11 0.000IM Discarded 0.00 cfs - -- 0.000 .w. 0.00 cfs 1'.1,,6�� sf ' 0.000- I � o.000- Pea k.'. .[� ��1 Oi100 0.000., Storege'-Q. cf_._ 0.000= 0.000-' 0- i...._..... LL 0: 0' 0 0 NO 0 40M WOM. M. i i• 0 1 2 3 4 5 6 7 8 9 10 11 12 13 1415 16 17 18192021 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type II24-hr 1-YEAR Rainfall=2.20" Prepared by ABD Engineers,LLP HydroCAD© 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 7P: INFILTRATION BASIN 7 Inflow Area= 28,265 sf, 51.55%Impervious, Inflow Depth= 0.22" for 1-YEAR event Inflow = 0.15 cfs @ 12.01 hrs, Volume= 510 cf Outflow = 0.06 cfs @ 12.14 hrs, Volume-- 510 cf, Atten=63%, Lag-- 8.0 min Discarded = 0.06 cfs @ 12.14 hrs, Volume— 510 cf Routing by Stor-Ind method,Time Span--0.00-36.00 hrs,dt=0.05 bus Peak Elev=99.06'@ 12.14 hrs Surf.Area=800 sf Storage=45 cf Plug-Flow detention time--6.0 min calculated for 509 cf(100%of inflow) Center-of--Mass det.tune=6.0 min(944.6-938.6) Volume Invert Avail.Storage Storage Description #1 99.00, 3,395 cf Ponding(Prismatic)Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 99.00 745 0 0 100.00 1,695 1,220 1,220 101.00 2,655 2,175 3,395 Device Routing Invert Outlet Devices #1 Discarded 99.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max--0.06 cfs @ 12.14 hrs HW=99.06' (Free Discharge) L1=Exfiltration (Exfiltration Controls 0.06 cfs) 5010A-HydroCAD Type II 24-hr I-YEAR Rainfall=2.20" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Pond 7P: INFILTRATION BASIN 7 Hydrograph _i....L-....:.....i............i...._.... Inflow 0.17... ..... ........... ...... D:15cfs ...... . .�..........�...�....... ..... ......�...'........ I 4 : ... ..:...... : 0.14 ' : : ' ea ev 0.13`" : : : i. 0.12: ......,..._. .. .. . raga..:^. .. _ 0.11' = - --- - ------- 0.1. - -- - --- -- -- - �� 0.09 c 0,08. : 0.07 0:O6cfs _................................................................ 0.05- " 0.04 : 0.03. 0.02. 0.01 0' . . 0 1 2 3 4 5 6 7 8 9 10 11 12 1314 15 16 1718 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type 1124-hr 10-YEAR Rainfall=3,70" Prepared by ABD Engineers, LLP HydroCADOO 10.00-18 s/n 00936 Oc 2016 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: POST 1 Runoff = 6.27 cfs @ 11.98 hrs, Volume= 13,057 cf, Depth-- 1.58" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span--0.00-36.00 hrs,dt=0.05 hrs Type II 24-hr 10-YEAR Rainfall=3,70" Area(sf) CN Description 16,836 98 Roofs,HSG A 46,346 98 Paved parking,HSG A 35,942 39 >75%Grass cover,Good,HSG A 99,124 77 Weighted Average 35,942 36.26%Pervious Area 63,182 63.74%Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 1S: POST 1 Hydrograph 7 Runoff : 6.27 cfs' 6 hr Yp� a I l 5- ; Ru�nof A�-e,a= 9;,1;24 # : 4 Runoff Np,'th='1.58" LL 3- , rL Tc=6:0. mini. h 'C N 77 2- : : �-r : : 1 , 0- 0 1 2 3 4 5 6 7 8 9 10 11 1213 14 15 16 1718 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type 1124-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCAD© 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: POST 2 Runoff = 3.61 efs @ 11.97 hrs, Volume-- 7,736 cf, Depth-- 2.28" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span--0.00-36.00 hrs, dt=0.05 lus Type H 24-hr 10-YEAR Rainfall=3.70" Area(sf) CN Description 13,376 98 Roofs,HSG A 18,979 98 Paved parking,HSG A 8,425 39 >75%Grass cover, Good,HSG A 40,780 86 Weighted Average 8,425 20.66%Pervious Area 32,355 79.34%Impervious Area Te Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 2S: POST 2 Hydrograph 4 p Runoff 3.61 cfs : ;Type 1124-hr : Q-YE ajnfall� 3 Rundff Area=40 780 sf I uno'ff�V 1661e=71,86 cf w unoeO ; -; 10"- , LL 2 E Tc=6.0 min CAI=86 1 E 0- 0 1 2 3 4 5 6 7 8 9 1011 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 Time (hours) 501OA-HydroCAD Type 1124-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCADOO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: POST 3 Runoff = 0.23 cfs @ 12.01 hrs, Volume= 811 cf, Depth= 0.34" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span--0.00-36.00 hrs,dt=0.05 hrs Type II 24-1•ir 10-YEAR Rainfall=3.70" Area(sf) CN Description 8,500 98 Roofs,HSG A 498 98 Paved parking,HSG A 19,322 32 Woods/grass comb.,Good,HSG A 28,320 53 Weighted Average 19,322 68.23%Pervious Area 8,998 31.77%Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 3S: POST 3 Hydrograph --- - ---, --- -------- - — 0.25 ' , 0.24- 10,2 r uno 0.23 , 0.22 ;. Type: r. 0.21 - , 0:2" �.7 0.19 10 :YEAR Rain all , , : 0.17' 0.18 ' uno � rea s _ : 0.16 ., 0.15- Runoff Volume; 8'11 cf 4 0.14 --- n 0.13. 0 : R uhaff Dept. ' 0 0 12 . u 0.11 = 6.0 i�1in 0.1 .., : , 0.09 0.08 N 5 0.07 0.06 _. ,..._. 1......,... , 0.03- 0.02-� c 0 0 1 2 3 4 5 6 7 8 910 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 Time (hours) 5010A-HydroCAD Type II24-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 4S: POST 4 Runoff = 0.19 cfs @ 11.98 lirs, Volume= 404 cf, Depth— 1.13" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span--0.00-36.00 lirs, dt=0.05 hrs Type H 24-hr 10-YEAR Rainfall=3.70" Area(sf) CN Description 2,471 98 Paved parking,HSG A 1,807 32 Woods/grass comb.,Good,HSG A 4,278 70 Weighted Average 1,807 42.24%Pervious Area 2,471 57.76%Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 4S: POST 4 Hydrograph -------- ------ -----------0.21. .............s,......j.......j..... ®Runoff 0.2 0.1:9 cfs 4-h 0.18 .Ype 0.17' .... 3 . . . . , elrnfall�-3:70"10 YEA'�R R o 0.16 0.15: r' re a"4 3 3 ' 0.14- , Ru n y 0.13: e , Runoff Vo[ume 404 cf V 0.11 ,'' I � - IV : 3 ' LL 0.09 C�V , 0.08' T �0 min 0.07- - -- -- - CNT7,0 0.06- - --- - -- 0.05.' : I 0.04 : 0.03 0.02 :.....:.......... 0.0131, 1 0 ... 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 Time (hours) 5010A-HydroCAD Type II24-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCAD® 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 5S: POST 5 Runoff = 0,30 cfs @ 12.00 hrs, Volume-- 808 cf, Depth— 0.49" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span--0.00-36.00 hrs, dt=0.05 hrs Type H 24-hr 10-YEAR Rainfall=3.70" Area(sf) CN Description 7,500 98 Roofs,HSG A 323 98 Paved parking,HSG A 11,829 30 Woods,Good,HSG A 19,652 57 Weighted Average 11,829 60.19%Pervious Area 7,823 3 9.8 1%Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 5S: POST 5 Hydrograph - - -- --- - -- ----- 0 Runoff: 0.32 0.3 s . r 0.28 EAR 0.26 1 Fk*ain a 0.24. O f Area 19,652 0... 0.22 . ..... . R 0.2 — �, R u.rr�e 0$, cf 0.18' n , 3 0.16. O ... - - - -- --- --- --- uno �� _ 0.14 0.12,- 0.08 0.06' 0.04e r� 0.02- " y r � 0s �,, 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 Time (hours) 5010A-HydroCAD Type II24-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCAD0 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 6S: POST 6 Runoff = 0.03 cfs @ 12.04 lirs, Volume= 212 cf, Depth= 0.22" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span--0.00-36.00 hrs,dt=0.05 hrs Type H 24-hr 10-YEAR Rainfall=3.70" Area(sf) CN Description 3,085 98 Paved parking,HSG A 1,463 39 >75%Grass cover,Good,HSG A 7,110 30 Woods, Good,HSG A 11,658 49 Weighted Average 8,573 73.54%Pervious Area 3,085 26.46%Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 6S: POST 6 Hydrograph 0.03 0.03 cfs 0.028 e Yp 1� 24 hr. . 0.026. 1. T �r : : 0.024 i 'f I 0.022 ) Runoff Area 1'1,6b$ sf 0.02 (i'�i. : ---r --- f -�6o' ,Vo'I t�m 1' cf_- o.o1s: - - -- - 0.016„" - Runoff Djepth=0:22" 3 _ LL c-6.0 min. 0.012 _ : : 0.014 0.0081 " 0.006` 0.004 0.002 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 3334 35 36 Time (hours) 5010A-HydroCAD Type II24-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCADOO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 7S: POST 7 Runoff = 0.99 cfs @ 11.98 hrs, Volume-- 2,146 cf, Depth= 0.91" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span--0.00-36.00 hrs, dt=0.05 lus Type H 24-hr 10-YEAR Rainfall=3.70" Area(sf) CN Description 14,572 98 Paved parking,HSG A 13,693 32 Woods/grass comb., Good,HSG A 28,265 66 Weighted Average 13,693 48.45%Pervious Area 14,572 51.55%Impervious Area Te Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 7S: POST 7 Hydrograph 0.9 cfs a, ;Type II 24 he 10-1�EAF7 ;Rainfall .70" Ruridff Area=28 2'65 sf R66oft V'olume 2�:146 6f 41 Runoff'Peoth LL Tc=6.0 m i ri W-66 0- �, .. �. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 L 23 2425 2627 28 2930 31 3233 3435 36 Time (hours) 5010A-HydroCAD Type II 24-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCADOO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 1P: INFILTRATION BASIN 1 Inflow Area= 99,124 sf, 63.74%Impervious, Inflow Depth= 1.58" for 10-YEAR event Inflow = 6.27 cfs @ 11.98 firs, Volume= 13,057 cf Outflow = 0.40 cfs @ 12.91 firs, Volume= 13,057 cf, Atten=94%, Lag=55.9 min Discarded = 0.40 cfs @ 12.91 hrs, Volume= 13,057 of Routing by Stor-Ind method,Time Span—0.00-36.00 firs,dt=0.05 firs Peak Elev=97.45'@ 12.91 hrs Sur£Area=5,789 sf Storage=5,797 of Plug-Flow detention time= 158.5 min calculated for 13,039 cf(100%of inflow) Center-of-Mass det. time-- 158.3 min(999.4-841.2) Volume Invert Avail.Storage Storage Description #1 96.00' 19,860 cf Ponding(Prismatic)Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 96.00 2,290 0 0 97.00 4,625 3,458 3,458 98.00 7,215 5,920 9,378 99.00 13,750 10,483 19,860 Device Routing Invert Outlet Devices #1 Discarded 96.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max=0.40 cfs @ 12.91 hrs IIW=97.45' (Free Discharge) L-1=Exfi1tration (Exfiltration Controls 0.40 cfs) 5010A-HydroCAD Type 1124-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCADOO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Pond 1P: INFILTRATION BASIN 1 Hydrograph Inflow 7 62 cfs 0 Discarded Inflow Area=99,12" f . 6- peak 0644 7AT 5 St rage--5,797 c NCi 4- 0 u. 3- 2- 1 0.40 ds 0 0 1 2 3 4 5 6 7 8 9 1011 12 1314 15 16 17 1819 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type II24-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCADOO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 2P: INFILTRATION BASIN 2 Inflow Area= 40,780 sf, 79.34%Impervious, Inflow Depth= 2.28" for 10-YEAR event Inflow = 3.61 cfs @ 11.97 lirs, Volume-— 7,736 cf Outflow = 0.27 cfs @ 12.59 hrs, Volume-- 7,736 cf, Atten=93%, Lag--37.3 min Discarded = 0.27 cfs @ 12.59 hrs, Volume= 7,736 cf Routing by Stor-Ind method,Time Span--0.00-36.00 hrs,dt=0.05 hrs Peak Elev= 100.22'@ 12.59 hrs Sur£Area=3,842 sf Storage=3,404 cf Plug-Flow detention time= 123.6 min calculated for 7,736 cf(100%of inflow) Center-of-Mass det. time:- 123.5 min(936.8 -813.3 ) Volume Invert Avail.Storage Storage Description #1 99.00, 13,070 cf Ponding(Prismatic)Listed below(Recalc) Elevation Sur£Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 99.00 1,750 0 0 100.00 3,455 2,603 2,603 101.00 5,215 4,335 6,938 102.00 7,050 6,133 13,070 Device Routing Invert Outlet Devices #1 Discarded 99.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max--0.27 cfs @ 12.59 hrs HW=100.22' (Free Discharge) t-1=Exfi1tration (Exfiltration Controls 0.27 cfs) 5010A-HydroCAD Type II24-hr^ 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Pond 2P: INFILTRATION BASIN 2 Hydrograph Inflow 4 3 st cfs EN Discarded 1016W Area=40,780 s Pea Cc E;lev�l0b.22' 3,_ Stcirage-3,404 cf --- --- ------------- - -- ------ --- - 3 2 0 1 0.27 cfs 0-44 0 1 2 3 4 5 6 7 8 9 10 11 12 1314 15 16 17 1819 20 2122 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type II24-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers,LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 3P: INFILTRATION TRENCH 3 Inflow Area= 28,320 sf, 31.77%Impervious, Inflow Depth= 0.34" for 10-YEAR event Inflow = 0.23 efs @ 12.01 hrs, Volume= 811 cf Outflow = 0.08 cfs @ 12.00 hrs, Volume= 811 cf, Atten=67%, Lag--0.0 min Discarded = 0.08 cfs @ 12.00 lirs, Volume-- 811 cf Routing by Stor-Ind method,Time Span—0.00-36.00 hrs,dt=0.05 hrs Peak Elev=97.16'@ 12.17 hrs Surf.Area= 1,098 sf Storage--68 cf Plug-Flow detention time--5.1 min calculated for 811 cf(100%of inflow) Center-of-Mass det.time=5.1 min(948.1 -943.0) Volume Invert Avail.Storage Storage Description #1 100.00, 275 cf Ponding(Prismatic)Listed below(Recalc) #2 97.00' 1,318 cf 3.001W x 366.001L x 3.00111 Stone 3,294 cf Overall x 40.0%Voids 1,592 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 100.00 1,098 0 0 100.25 1,098 275 275 Device Routing Invert Outlet Devices #1 Discarded 97.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max--0.08 cfs @ 12.00 brs IIW=97.07' (Free Discharge) L1=Exfi1tration (Exfiltration Controls 0.08 cfs) 5010A-HydroCAD Type 1124-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Pond 3P: INFILTRATION TRENCH 3 Hydrograph M Discarded IN Inflow r�ffo�irAriea -28�3�.0 sf__ - ----------- P6ak EleV-97.1 G 0.2 -- '! 0.18- Stor. g -6 ..c ..... : 0.14 -- -- -- -- --- --- -- -- - -- 0 0.12 ' .._i...-i......i..._i......i..._i. LL 0.1 0.08- ...._......;...........:.._;..... 0.08 cfs : 0.06 ' .....;...... j..... ... : : 0.04 0.02- 0 0 1 2 3 4 5 6 7 8 9 10 11 12 1314 1516 1718 19 20 21 22 23 24 25 26 27 28 29 30 31 3233 3435 36 Time (hours) 5010A-xydroCAD Type 1124-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 4P: INFILTRATION BASIN 4 Inflow Area= 4,278 sf, 57.76%hnpervious, Inflow Depth= 1.13" for 10-YEAR event Inflow = 0.19 cfs @ 11.98 hrs, Volume-- 404 cf Outflow = 0.02 cfs @ 12.40 hrs, Volume= 404 cf, Atten= 87%, Lag--25.2 min Discarded = 0.02 cfs @ 12.40 hrs, Volume= 404 cf Routing by Stor-Ind method,Time Span--0.00-36.00 hrs,dt=0.05 hrs Peak Elev= 101.44'@ 12.40 hrs Sur£Area=345 sf Storage= 129 cf Plug-Flow detention time--41.7 min calculated for 404 cf(100%of inflow) Center-of-Mass det. time=41.7 min(903.9-862.2) Volume Invert Avail.Storage Storage Description #1 101.00, 666 cf Ponding(Prismatic)Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 101.00 245 0 0 102.00 475 360 360 102.50 750 306 666 Device Routing Invert Outlet Devices #1 Discarded 101.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max--0.02 cfs @ 12.40 hrs HW=101.44' (Free Discharge) L-1=Exfi1trat1on (Exfiltration Controls 0.02 cfs) 5010A-HydroCAD Type II24-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Pond 4P: INFILTRATION BASIN 4 Hydrograph _................_...................__.:.....:.............,............:......,......:......,...... :..._.,...._:.....:_..........,...........,.......:-.....,......:.......,......:..._..,_....,............ ......._........... --- - --- ----- - -- -- - -- -- Inflow : 0.21 ----- orts�fs 0.2-' Discarded ------ i } . .... Inflov�-Ar:ea� 4'� s 0.18 :...................... ;..... ......;..... ...... ................_......!.P k'-E _ '1...:44'...... 0.17= 0.16 -- -- - - - - : 0.14 . W0.124 : 0.11- 3 0.1 a0.09 i....._i.........._;......;..............._ : 0.07 0.06 , : : : 0.03 02 cfs 0.02 0.01 0 0 1 2 3 4 5 6 7 8 9 1011 12 1314 15 16 1718 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type II24-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 5P: INFILTRATION TRENCH 5 Inflow Area= 19,652 sf, 39.81%Impervious, Inflow Depth= 0.49" for 10-YEAR event Inflow = 0.30 cfs @ 12.00 hrs, Volume-- 808 cf Outflow = 0.07 cfs @ 11.95 hrs, Volume= 808 cf, Atten=77%, Lag=0.0 min Discarded = 0.07 cfs @ 11.95 hrs, Volume= 808 of Routing by Stor-Ind method,Time Span--0.00-36.00 hrs,dt=0.05 lirs Pealc Elev=97.32'@ 12.221irs Surf.Area=978 sf Storage= 123 cf Plug-Flow detention time= 10.2 min calculated for 807 cf(100%of inflow) Center-of-Mass det. time= 10.2 min(926.3 -916.2) Volume Invert Avail.Storage Storage Description #1 100.00, 245 cf Ponding(Prismatic)Listed below(Recalc) #2 97.00' 1,174 cf 3.00'W x 326.001L x 3.00'H Stone 2,934 cf Overall x 40.0%Voids 1,418 cf Total Available Storage Elevation Surf Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 100.00 978 0 0 100.25 978 245 245 Device Routing Invert Outlet Devices #1 Discarded 97.00' 3.000 in/hr Exfiltration over Surface area iscarded Outflow Max=0.07 cfs @ 11.95 hrs HW=97.07' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.07 cfs) 5010A-HydroCAD Type II24-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCAD© 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Pond 5P: INFILTRATION TRENCH 5 Hydrograph FM.......:......:.......:......r.....;......;......;......;......;......;. : : : IT flow M Discarded 0.32 ------- --.. =----- Ir�fIQwA 0.3. . 0.28 e E ex- .32' : 0.26 _ : 0.24 ' drag c 0.22-' 0.2-' 3 : 0.14` 0.12 ------ ---;-- - ------ --- -- ----- ------ --- - --- -- -- --- -- ---------- 0.1 ................ 0.08 0,07 ds ; 0.06 ' 0.04 0.02" 0 0 1 2 3 4 5 6 7 8 9 1011 12 1314 15 16 1718 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type II24-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 6P: INFILTRATION BASIN 6 Inflow Area= 11,658 sf, 26.46%Impervious, Inflow Depth= 0.22" for 10-YEAR event Inflow = 0.03 cfs @ 12.04 firs, Volume-- 212 cf Outflow = 0.02 cfs @ 12.13 firs, Volume= 212 cf, Atten=39%, Lag—5.3 min Discarded = 0.02 cfs @ 12.13 firs, Volume= 212 cf Routing by Stor-Ind method,Time Span=0,00-36.00 firs, dt=0.05 firs Peak Elev= 101.02'@ 12.13 firs Surf.Area=250 sf Storage=5 cf Plug-Flow detention time=2.6 min calculated for 212 cf(100%of inflow) Center-of-Mass det. time=2.5 min(983.3 -980.7) Volume Invert Avail,Storage Storage Description #1 101.00, 360 cf Ponding(Prismatic)Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 101,00 245 0 0 102.00 475 360 360 Device Routing Invert Outlet Devices #1 Discarded 101.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max=0.02 cfs @ 12.13 hrs HW=101.02' (Free Discharge) t-1=EA11tration (Exf"iltration Controls 0.02 cfs) Pond 6P: INFILTRATION BASIN 6 Hydrograph M Inflow M Discarded 0.03 nfs 0.03 a— 0.028: _ Inflow.-Are 1, 58 �f,. 0.026 0.024 0.022. .�.-Cf ........... ... ....... 0.02 N ' zcfs ;......1..... ......1.....;......f......,...._,......;...._L..... ...._i...._;..._L... o.o 0.018 0.016=' LL 0.014 0.012. 0.01 0.008- 0.006- : 0.004 0.002- 0 0 1 2 3 4 5 6 7 8 9 10 11 1213 1415 16 17 1819 20 2122 23 24 25 26 27 28 29 30 3132 33 34 35 36 Time (hours) 5010A-HydroCAD Type 1124-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCADOO 10.00-18 shi 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 7P: INFILTRATION BASIN 7 Inflow Area= 28,265 sf, 51.55%Impervious, Inflow Depth= 0.91" for 10-YEAR event Inflow = 0.99 cfs @ 11.98 hrs, Volume-- 2,146 cf Outflow = 0.10 cfs @ 12.58 hrs, Volume= 2,146 cf, Atten= 90%, Lag=36.0 min Discarded = 0.10 cfs @ 12.58 lirs, Volume= 2,146 cf Routing by Stor-Ind method,Time Span--0.00-36.00 hrs,dt=0.05 hrs Pealc Elev=99.67'@ 12.58 hrs Sur£Area= 1,386 sf Storage=718 cf Plug-Flow detention time=68.8 min calculated for 2,143 cf(100%of inflow) Center-of-Mass det. time=68.7 min(944.4-875.7) Volume Invert Avail.Storage Storage Description #1 99.00, 3,395 cf Ponding(Prismatic)Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 99.00 745 0 0 100.00 1,695 1,220 1,220 101.00 2,655 2,175 3,395 Device Routing Invert Outlet Devices #1 Discarded 99.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max=0.10 cfs @ 12.58 hrs HW=99.67' (Free Discharge) t-1=Exfiltration (Exfiltration Controls 0.10 cfs) 5010A-HydroCAD Type 1124-hr 10-YEAR Rainfall=3.70" Prepared by ABD Engineers, LLP HydroCAD© 10,00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Pond 7P: INFILTRATION BASIN 7 Hydrograph Inflow i. : 1 lhflow,Arb6lr 65 0 beak E1w=99.67" Storage=71 8 cf 3 uo. 0:10 cis 0 0 1 2 3 4 5 6 7 8 9 10 11 12 1314 15 16 17 1819 20 2122 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type II 24-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCADOO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: POST 1 Runoff = 13.50 cfs @ 11.97 lirs, Volume-- 28,738 cf, Depth-- 3.48" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span--0.00-36.00 hrs, dt=0.05 hrs Type H 24-hr 100-YEAR Rainfall=6.00" Area(sf) CN Description 16,836 98 Roofs,HSG A 46,346 98 Paved parking,HSG A 35,942 39 >75%Grass cover,Good,HSG A 99,124 77 Weighted Average 35,942 36.26%Pervious Area 63,182 63.74%Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 1S: POST 1 Hydrograph 15 .... 0 Runoff 14'' 1350rofs -- ------ -- ------ -- - ------ -- 13: Type II 24=fir ................:......:......:....... 12-- 100-YEAR Rainf611=6:00" I ' L#n';off A#"ea�=09;,1,24 0- - 10- 9-, : . . Runoff'VoFume�-28,738 cf- . : .... w Run©ff Dcpth 3.48" 0 7-" Tc'-6.0 mini 6: ; z a� 3 : 2 - 1- 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 Time (hours) 5010A-HydroCAD Type II 24-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCADOO 10,00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: POST 2 Runoff = 6.77 cfs @ 11.97 hrs, Volume= 14,985 cf, Depth-- 4.41" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span--0.00-36.00 hrs,dt=0.05 hrs Type II 24-hr 100-YEAR Rainfall=6.00" Area(sf) CN Description 13,376 98 Roofs,HSG A 18,979 98 Paved parking,HSG A 8,425 39 >75%Grass cover,Good,HSG A 40,780 86 Weighted Average 8,425 20.66%Pervious Area 32,355 79.34%Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 2S: POST 2 Hydrograph : : ----------------------=----.....................................---;---,--- -- Runoff 7 6.77 cfs TYPO 11 24-hr 6 v'33, Rainfall 6.00'!.. y 100 YEAR .......,.. 7 5 no �-ea�- : : : 4�= Runoff V61ume1#114,985 Cf w _ Rundff, Dept 4:41' : 4 P TC: M! 3 CN;=86 : 2 1- �T 1 i I" fs fi" .9 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 25 27 28 29 30 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type II 24-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCADOO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: POST 3 Runoff = 1.46 cfs @ 11.99 hrs, Volume-- 3,219 cf, Depth= 1.36" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span--0.00-36.00 lirs, dt=0.05 hrs Type II 24-hr 100-YEAR Rainfall=6.00" Area(sf) CN Description 8,500 98 Roofs,HSG A 498 98 Paved parking,HSG A 19,322 32 Woods/grass comb.,Good,HSG A 28,320 53 Weighted Average 19,322 68.23%Pervious Area 8,998 31.77%Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 3S: POST 3 Hydrograph ' �Runoff 1.46 cfs Type 1124-h r 100-YEAR Rajnfall�=6.00" .------ -- Runoff Area=28;320 sf 1- urof me3#21 c oli r Runoff DePth',=1.36 LL Tc=6.0 m i n CN"53 --- --------- f 0 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 Time (hours) 5010A-HydroCAD Type II24-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCAD® 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 4S: POST 4 Runoff = 0.48 cfs @ 11.9711rs, Volume= 1,000 cf, Depth-- 2.81" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span--0.00-36.00 firs, dt=0.05 firs Type II 24-hr 100-YEAR Rainfall=6.00" Area(sf) CN Description 2,471 98 Paved parking,HSG A 1,807 32 Woods/grass comb., Good,HSG A 4,278 70 Weighted Average 1,807 42.24%Pervious Area 2,471 57.76%Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 4S: POST 4 Hydrograph : : '....._,......:.............. ;................,......;......;.._...;.......;...... Runoff : : 0.5 D 48 cfs Type.1.144 hr 0.45 �00-YEAR R " 0.4 M, : : �d r ;4 s 0.35 Runoff Volume ; 1-,000 ;c 0.3 Z. r OeDth=2.81 0 0.25 T,c=C.O jn1 LL 0.2- CN 7Q 0.15 0.1 0.05 F 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 3334 35 36 Time (hours) 5010A-HydroCAD Type II24-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCADOO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 5S: POST 5 Runoff = 1.28 cfs @ 11.98 firs, Volume-- 2,745 cf, Depth-- 1.68" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span--0.00-36.00 hrs,dt=0.05 hrs Type H 24-hr 100-YEAR Rainfall=6.00" Area(sf) CN Description 7,500 98 Roofs,HSG A 323 98 Paved parking,HSG A 11,829 30 Woods,Good,HSG A 19,652 57 Weighted Average 11,829 60.19%Pervious Area 7,823 39.81%Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 5S: POST 5 Hydrograph y Runoff 1.i28 cfs. ;Type II 24-hr 100-YEAR R'aW116.00'' ....................:.......{.......;...... j.......i Iqunq : rea 19;652 s Runoff'DeOth'=1.68" Tc 66.0 min '•••�ti 5��t_= 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 Time (hours) 5010A-HydroCAD Type II24-hr 100-YEAR Rainfall=6,00" Prepared by ABD Engineers, LLP HvdroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 6S: POST 6 Runoff = 0.44 cfs @ 11.99 firs, Volume= 1,041 cf, Depth-- 1.07" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span--0.00-36.00 firs,dt=0.05 firs Type 1124-hr 100-YEAR Rainfall=6.00" Area(sf) CN Description 3,085 98 Paved parking,HSG A 1,463 39 >75%Grass cover, Good,HSG A 7,110 30 Woods, Good,HSG A 11,658 49 Weighted Average 8,573 73.54%Pervious Area 3,085 26.46%Impervious Area Tc Length Slope Velocity Capacity Description (nun) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 6S: POST 6 Hydrograph t - --- 0.48 J-0.46 , : 0.44 .... T 0.42' ...... ,. Y : : : 04 : : ry 0.38 - . 36-� - ,.Runoff 0.32 : 0.3" - --- - ---,- --- - 'Runoff Voturne 1,04�1__q : w 0.28- 0.26 : : T uno ep., ,. 3 0.24 a 0.22 F.-.0- "I... ... : : 0.2 0.18? 0.16 0.14- 0.12= : 0.08 j — - i-- = J -- -- -- -- 0.06, i......:. .:..................... .. i. 0.04 - 0.02 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 Time (hours) 5010A-HydroCAD Type II 24-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Subcatchment 7S: POST 7 Runoff = 2.76 cfs @ 11.98 hrs, Volume= 5,748 cf, Depth-- 2.44" Runoff by SCS TR-20 method,UH=SCS,Weighted-CN,Time Span--0.00-36.00 lirs, dt=0.05 hrs Type II 24-hr 100-YEAR Rainfall=6.00" Area(sf) CN Description 14,572 98 Paved parking,HSG A 13,693 32 Woods/grass comb., Good,HSG A 28,265 66 Weighted Average 13,693 48.45%Pei vious Area 14,572 51.55%Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Subcatchment 7S: POST 7 Hydrograph 3-' Runoff ' 2.76 cfs ;Type 1124-h r 100-YEAR ;Rainfall"0.' 0" __Runoff_Area-28;2f 2 . _ Runoft Voaumne=5#748 cf Runoff De h=2.44" LL Is — Tc=6.0 min 1 0- a 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 Time (hours) 5010A-HydroCAD Type 1124-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCAD010.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 1P: INFILTRATION BASIN 1 Inflow Area= 99,124 sf, 63.74%hnpervious, Inflow Depth= 3.48" for 100-YEAR event Inflow = 13.50 cfs @ 11.97 hrs, Volume-- 28,738 of Outflow = 0.75 cfs @ 12.98 lirs, Volume= 28,738 cf, Atten=94%, Lag--60.5 min Discarded = 0.75 cfs @ 12.98 hrs, Volume— 28,738 cf Routing by Stor-Ind method,Time Span--0.00-36.00 hrs,dt=0.05 hrs Peak Elev=98.55'@ 12.98 hrs Sur£Area= 10,839 sf Storage-- 14,383 of Plug-Flow detention time=251.4 min calculated for 28,698 cf(100%of inflow) Center-of-Mass det.time--251.4 inin( 1,069.9 -818.5) Volume Invert Avail.Storage Storage Description #1 96.00' 19,860 of Ponding(Prismatic)Listed below(Recale) Elevation Sur£Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 96.00 2,290 0 0 97.00 4,625 3,458 3,458 98.00 7,215 5,920 9,378 99.00 13,750 10,483 19,860 Device Routing Invert Outlet Devices #1 Discarded 96.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max--0.75 cfs @ 12.98 hrs ITW=98.55' (Free Discharge) t-1=Exfiltration (Exfiltration Controls 0.75 cfs) 5010A-HydroCAD Type 1124-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 shi 00936 ©2016 HydroCAD Software Solutions LLC Pond 1P: INFILTRATION BASIN 1 Hydrograph : 15 „ ; ; t3;50 cfs Ell Discarded 14- - V- $. 12- 'Peek EMe 55'�-- 11' � S�tor{age-.�4;383._CT . . . , 10-' : r__.,___.,___r__y --- - : y„N __ ___ ______ ___ ______ ______ ___ .Vr 8. ...,..__..........................r...._,...._,...._,._.. _.._;. 0 7 .. 6 ! 5 : , 4 3. 2 M 0.75 ds 0` 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 3233 3435 36 Time (hours) 5010A-HydroCAD Type II 24-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 2P: INFILTRATION BASIN 2 Inflow Area= 40,780 sf, 79.34%hnpervious, Inflow Depth= 4.41" for 100-YEAR event Inflow = 6.77 efs @ 11.97 lus, Volume= 14,985 cf Outflow = 0.37 cfs @ 12.89 lirs, Volume= 14,985 cf, Atten=94%, Lag--55.7 min Discarded = 0.37 efs @ 12.89 hrs, Volume-- 14,985 cf Routing by Stor-Ind method,Time Span--0.00-36.00 hrs,dt=0.05 hrs Peak Elev= 101.08'@ 12.89 hrs Surf.Area=5,368 sf Storage=7,380 of Plug-Flow detention time=211.9 min calculated for 14,964 cf(100%of inflow) Center-of-Mass det. time--211.7 min( 1,006.3 -794.5 ) Volume Invert Avail.Storage Storage Description #1 99.00, 13,070 of Ponding(Prismatic)Listed below(Recale) Elevation Surf Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 99.00 1,750 0 0 100.00 3,455 2,603 2,603 101.00 5,215 4,335 6,938 102.00 7,050 6,133 13,070 Device Routing Invert Outlet Devices #1 Discarded 99.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max--0.37 efs @ 12.89 hrs HW=101.08' (Free Discharge) L1=Exfi1tration (Exfiltration Controls 0.37 cfs) 5010A-I3ydroCAD Type II24-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCAD©10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Pond 2P: INFILTRATION BASIN 2 Hydrograph EM Inflow : .....:.... .................. : Discarded I 16W Are6=40,780 0 , Pe k ElOV.=i101 .08 S or6g'a 7 380..cf. 6 w 4 : 3 : 0 3- 2 a - --- ------ ----------- --- ---------- - 1- I 0.37 cfs 0 0 1 2 3 4 5 6 7 8 9 1011 12 131415 16 17 1819 20 21 22 23 24 26 26 27 28 29 30 31 32 33 3436 36 Time (hours) 5010A-HydroCAD Type II24-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 3P: INFILTRATION TRENCH 3 Inflow Area= 28,320 sf, 31.77%Impervious, Inflow Depth= 1.36" for 100-YEAR event Inflow = 1.46 cfs @ 11.99 lirs, Volume-- 3,219 cf Outflow = 0.08 cfs @ 11.80 hrs, Volume-- 3,219 cf, Atten=95%, Lag--0.0 min Discarded = 0.08 cfs @ 11.80 hrs, Volume= 3,219 cf Routing by Stor-Ind method,Time Span-0.00-36.00 firs,dt=0.05 hrs Peak Elev=99.96'@ 13.78 hrs Surf Area= 1,098 sf Storage= 1,300 cf Plug-Flow detention time-- 175.5 min calculated for 3,215 cf(100%of inflow) Center-of-Mass det. time= 175.3 min( 1,056.0 -880.7) Volume Invert Avail,Storage Storage Description #1 100,00, 275 cf Ponding(Prismatic)Listed below(Recalc) #2 97.00' 1,318 cf 3.001W x 366.00'L x 3.00%Stone 3,294 cf Overall x 40.0%Voids 1,592 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 100.00 1,098 0 0 100.25 1,098 275 275 Device Routing Invert Outlet Devices #1 Discarded 97.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max--0.08 cfs @ 11.80 hrs HW=97.06' (Free Discharge) L1=Exfi1tration (Exfiltration Controls 0.08 cfs) 5010A-HydroCAD Type II24-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers,LLP HydroCAD® 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Pond 3P: INFILTRATION TRENCH 3 Hydrograph Inflow A6 cfs EM Discarded lhfl6W�Area028,320 sf peak Elev=99.90- Stc►ra9e01 ,300 cf 1 0 LL O:OBcfs 0 0 1 2 3 4 5 6 7 8 9 1011 12 1314 15 16 17 18 19 20 2122 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type 1124-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCADOO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 4P: INFILTRATION BASIN 4 Inflow Area= 4,278 sf, 57.76%Impervious, Inflow Depth= 2.81" for 100-YEAR event Inflow = 0.48 cfs @ 11.97 hrs, Volume= 1,000 cf Outflow = 0.04 cfs @ 12.60 hrs, Volume= 1,000 cf, Atten=92%, Lag--37.5 min Discarded = 0.04 efs @ 12.60 hrs, Volume-- 1,000 cf Routing by Stor-Ind method,Time Span=0.00-36.00 hrs,dt=0.05 hrs Peak Elev= 102.12'@ 12.60 hrs Sur£Area=541 sf Storage--421 cf Plug-Flow detention time-- 116.3 min calculated for 1,000 cf(100%of inflow) Center-of-Mass det.time= 116.3 nun(951.3 -835.0) Volume Invert Avail.Storage Storage Description #1 101.00' 666 cf Ponding(Prismatic)Listed below(Recalc) Elevation Sur£Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 101.00 245 0 0 102.00 475 360 360 102.50 750 306 666 Device Routing Invert Outlet Devices #1 Discarded 101.00' 3.000 in/hr Extiltration over Surface area Discarded Outflow Max--0.04 cfs @ 12.60 hrs HW=102.12' (Free Discharge) L1=Exfi1tration (Exfiltration Controls 0.04 cfs) 5010A-HydroCAD Type 1124-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCADO 10,00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Pond 4P: INFILTRATION BASIN 4 Hydrograph : : : D:AB cfs 0.5 _ flow . . . Area 4 278 sf 0.45 -- --�---'--- ---'--- -- ---; -- --- --�---�--1---�--�---�---'---gip- --- - - -- -- � -- -�]� -- Pda�k� Elev='IO2.�1 0.4 I : o;rageT : 0.35 --- ----- ------, Fn 0.3 , : 3 : LL 0.2 • 0.15- : : 0.1-, 0.05- 0.04 cfs O 0 1 2 3 4 5 6 7 8 9 1011 12 1314 1516 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type II24-hr^ 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 5P: INFILTRATION TRENCH 5 Inflow Area= 19,652 sf, 39.81%Impervious, Inflow Depth= 1.68" for 100-YEAR event Inflow = 1.28 cfs @ 11.98 hrs, Volume= 2,745 of Outflow = 0.07 cfs @ 11.75 lirs, Volume= 2,745 ef, Atten=95%, Lag--0.0 min Discarded = 0.07 cfs @ 11.75 hrs, Volume= 2,745 of Routing by Stor-Ind method,Time Span--0.00-36.00 firs,dt=0.05 lirs Peak Elev=99.94'@ 13.54 hrs Surf.Area=978 sf Storage= 1,152 of Plug-Flow detention time= 168.4 min calculated for 2,741 of(100%of inflow) Center-of-Mass det.time-- 168.2 min( 1,036.1 -867,9) Volume Invert Avail.Storage Storage Description #1 100.00, 245 cf Ponding(Prismatic)Listed below(Recalc) #2 97.00' 1,174 of 3.001W x 326.00'L x 3.00%Stone 2,934 of Overall x 40.0%Voids 1,418 of Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 100.00 978 0 0 100.25 978 245 245 Device Routing Invert Outlet Devices #1 Discarded 97.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max--0.07 cfs @ 11.75 hrs HW=97.06' (Free Discharge) L1=Exfi1tration (Exfiltration Controls 0.07 cfs) 5010A-HydroCAD Type II 24-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Pond 5P: INFILTRATION TRENCH 5 Hydrograph Inflow T 2ef M Discarded lief l6W Areci=19,6a2 0 Ea P66k EWVv=99.94'' 1 St6rage-0 j 52 cf U O LL 0.07 cfs 0 0 1 2 3 4 5 6 7 8 9 10 111 1314 15 16 17 1819 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type 1124-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 6P: INFILTRATION BASIN 6 Inflow Area= 11,658 sf, 26.46%Impervious, Inflow Depth= 1.07" for 100-YEAR event Inflow = 0.44 cfs @ 11.99 hrs, Volume-- 1,041 cf Outflow = 0.03 cfs @ 13.28 hrs, Volume= 1,041 cf, Atten=93%, Lag--77.1 min Discarded = 0.03 cfs @ 13.28 hrs, Volume= 1,041 cf Routing by Stor-Ind method,Time Span=0.00-36.00 lirs,dt=0.05 hrs Peak Elev= 101.98'@ 13.28 hrs Surf.Area=470 sf Storage=350 cf Plug-Flow detention time-- 115.5 min calculated for 1,040 cf(100%of inflow) Center-of-Mass det.time= 115.3 min( 1,011.5 - 896.2) Volume Invert Avail,Storage Storage Description #1 101.00, 360 cf Ponding(Prismatic)Listed below(Recale) Elevation Surf.Area Inc,Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 101.00 245 0 0 102.00 475 360 360 Device Routing Invert Outlet Devices #1 Discarded 101.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max--0.03 efs @ 13.28 lirs HW=101.98' (Free Discharge) L1=Exfiltration (Exfiltration Controls 0.03 efs) Pond 6P: INFILTRATION BASIN 6 Hydrograph ....;..__;_....:......:......a............i.._..! .. __1..._.;..__i._...i......,......!_...!... .!......:.. ..!......,......j.....i......i._...i_....;......:...._i....._i...... .... ......i......... ..;....-1..............1...._ <cfs 1nfl:avv A, ` -'�:1;6 -8 sf Discarded 0:44 0.44 0.42' .i..... 0.4 0.38: :......:.....:......:._.. ...._ .... ...... St �ag,._ , 50 cf 0.36- : 0.32 .... t....,... 0.26 o° 0.22 ......__,.. 0.2 , 0.18 _<._..........:..............:....... 0.16 0.14 , 0.12 0.04 0.03 ds 0.02 0 0 1 2 3 4 5 6 7 8 9 10 11 12 1314 15 16 1718 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Time (hours) 5010A-HydroCAD Type H 24-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Summary for Pond 7P: INFILTRATION BASIN 7 Inflow Area 28,265 sf, 51.55%Impervious, Inflow Depth= 2.44" for 100-YEAR event Inflow = 2.76 cfs @ 11.98 hrs, Volume= 5,748 cf Outflow = 0.16 cfs @ 13.04 hrs, Volume= 5,748 cf, Atten=94%, Lag=63.8 min Discarded = 0.16 cfs @ 13.04 hrs, Volume= 5,748 cf Routing by Stor-Ind method,Time Span=0.00-36.00 lirs, dt=0.05 hrs Peak Elev= 100.69'@ 13.04 hrs Surf.Area=2,353 sf Storage--2,607 cf Plug-Flow detention time= 184.1 min calculated for 5,740 cf(100%of inflow) Center-of-Mass det. time-- 183.9 min( 1,028.3 -844.4) Volume Invert Avail.Storage Storage Description #1 99.00' 3,395 cf Ponding(Prismatic)Listed below(Recalc) Elevation Sur£Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 99.00 745 0 0 100.00 1,695 1,220 1,220 101.00 2,655 2,175 3,395 Device Routing Invert Outlet Devices #1 Discarded 99.00' 3.000 in/hr Exfiltration over Surface area Discarded Outflow Max--O.16 cfs @ 13.04 hrs HW=100.69' (Free Discharge) L1=Exfi1tration (Exfiltration Controls 0.16 cfs) 5010A-HydroCAD Type II 24-hr 100-YEAR Rainfall=6.00" Prepared by ABD Engineers, LLP HydroCADO 10.00-18 s/n 00936 ©2016 HydroCAD Software Solutions LLC Pond 7P: INFILTRATION BASIN 7 Hydrograph IE Inflow 3 2.7 cfs Discarded lhfl6w`Ar66028,266 0 PeA F-I6v 100.69 Storag ! Z607-6f-- 2- U O L1. , 1 016 cfs 0 , 0 1 2 3 4 5 6 7 8 9 1011 12 1314 15 16 17 1819 20 2122 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Time (hours)