Transcription

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15 A p p e n d i x C Department of Environmental Quality Water Quality Assessment

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17 Oregon DEQ: Water Quality - Water Quality Assessment - Oregon's 2010 Integrated Report Data... file://l:\project\14100\14192b\waterres\background Info for Report\Oregon DEQ Water Quali... Page 1 of 2 12/27/2011 Oregon Department of Environmental Quality 100

18 Oregon DEQ: Water Quality - Water Quality Assessment - Oregon's 2010 Integrated Report Data... file://l:\project\14100\14192b\waterres\background Info for Report\Oregon DEQ Water Quali... Page 2 of 2 12/27/2011

19 Oregon DEQ: Water Quality - Water Quality Assessment - Oregon's 2010 Integrated Report Data... file://l:\project\14100\14192b\waterres\background Info for Report\Oregon DEQ Water Quali... Page 1 of 2 12/27/2011 Oregon Department of Environmental Quality 100

20 Oregon DEQ: Water Quality - Water Quality Assessment - Oregon's 2010 Integrated Report Data... file://l:\project\14100\14192b\waterres\background Info for Report\Oregon DEQ Water Quali... Page 2 of 2 12/27/2011

21 Appendix D Soils

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30 Custom Soil Resource Report Soil Map

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43 Stanfield Rd Randolph Rd Stacy Allison Way Kotka St Da Jansen Way WuA Newport Way Mulberry Dr Eagle Dr Bunker Ave Lilac Way Heather Way Vanderbeck Ln Hampton Way Constitution Ave Roanoke St Garden Way Astor Way Quinn Rd Tracy Ln Country Club Rd Thompson Rd Walton Way Umpqua Rd Sallal Rd Bernard St Henrys Blvd Finzer Way Mayanna Dr Anna St Boones Ferry Rd Dellmoor Way Astor Way High St Church St Broughton Way Cahill Way 6th St Lincoln St Harrison St Settlemeir Ave Hall St Leasure St Hayes St 5th St 4th St 3rd St Garfield St Arney Rd Am WuC Am WuD Ba Mountain View Ln King Way Plum Ln Plum Ave Ten Oaks Ln Plum Ave Nekia St Senecal Creek Vera Ln Jory St Steven St Butteville Rd Hawthorn Cir Da WuA Am Pine Cir Linda St Princeton Rd Willow Ave Railroad Ave Country Club Ter Hemlock Cir 2nd St Camas St Country Club Ct McNaught St WuA WuA Am WuD WuD Co Co Co WuD Co Robin Ave Olive Ave Palm Ave Myrtle St Rainier Rd Newberg Hwy Acacia Ave Sycamore Ave WuA Am Am Da WuA Am WuD Am Am Da WuC WuA WuC Co Cascade Dr Oregon Way Evergreen Rd Ba Woodland Ave Da Oregon Ct Co Am Co WuD WuA Co WuC Am WuC WuA Clackamas Cir Columbia Dr Co Co Stanford St Harvard Dr Co WuA WuA WuA Creighton St Front St Stafney Ln ' 1'' ' 1'' Meters ,200 Feet ,000 2,000 3, ' 54'' 45 8' 40'' ' 24'' ' 24'' 45 9' 54'' 45 8' 40'' Custom Soil Resource Report Map Hydrologic Soil Group Map Scale: 1:16,400 if printed on A size (8.5" x 11") sheet.

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49 Appendix E FIRM Maps

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53 Appendix F HydroCAD Flow Calculations

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55 7S AR1 D7 5S HSC EB D5 2S 7L 6S GC 10S 6L 1S WD D2 E Senecal Creek B2 D6 Goose Creek HSC EAST Senecal Creek West 214 9S 10L 11S OS1B OS2B OR 214 ES Creek NB Ramps 100% OS1 100% OS2 OS5 OS7 OS3 100% OS5 100% O7 100% OS3 Subcat Reach Pond Link Drainage Diagram for Existing Flows_ Prepared by Otak, Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC

56 Existing Flows_ Prepared by Otak HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Printed 1/23/2012 Page 2 Area (acres) CN Area Listing (selected nodes) Description (subcatchment-numbers) A10B (9S) A11B (9S) A12 (1S) A12B (9S) A13B (9S) A14B (2S,9S) A15B (2S,9S) A16B (2S) A17B (9S) A1B (1S,9S,10S) A20B (7S) A23B (9S) A25B (7S) A26B (7S,9S) A27B (9S) A28B (7S) A29B (7S,9S) A2b (10S) A3 (10S) A30B (9S) A31B (9S) A32B (7S,9S) A33B (7S) A36B (9S) A37B (9S) A38B (9S) A39B (9S) A3B (1S) A4 (1S) A44 (9S) A50 (11S) A51 (11S) A52 (11S) A53 (11S) A54 (11S) A5B (1S,9S) A6B (9S) A7B (9S) A9B (9S) AAR1 (OS7) ACD0B (OS3)

57 Existing Flows_ Prepared by Otak HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Printed 1/23/2012 Page 3 Area (acres) CN Area Listing (selected nodes) (continued) Description (subcatchment-numbers) ACD11B (OS3) ACD14B (OS3) ACD15B (OS3) ACD17B (OS3) ACD1B (OS3) ACD2B (OS3) ACD3B (OS3) ACD7B (OS3) ACD9B (OS3) ACDB (OS3) AHS1000B (OS1B) AHS1001B (OS1B) AHS1002B (OS1B) AHS1003B (OS1B) AHS1004B (OS1B) AHS1005B (OS1B) AHS1006B (OS1B) AHS1011B (OS2B) AHS1012B (OS1B) AHS1013B (OS2B) AHS1014B (OS2B) AHS1015B (OS2B) AHS5058B (OS3) AHS5064B (OS3) AHS5065B (OS3) AHS5067B (OS3) AHS5069B (OS3) AHS5074B (OS3) AOW13B (OS3) AOW14B (OS3) AOW15B (OS3) AOW16B (OS3) AOW17B (OS3) AOW18B (OS3) AOW19B (OS3) AOW20B (OS3) AOW21B (OS3) ASH1018B (OS1B) A53B (11S) A1 (1S,9S,10S) A10 (1S,9S,10S)

58 Existing Flows_ Prepared by Otak HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Printed 1/23/2012 Page 4 Area (acres) CN Area Listing (selected nodes) (continued) Description (subcatchment-numbers) A11 (1S,9S) A12 (9S) A13 (9S) A14 (2S,9S) A15 (2S,9S) A16 (2S,9S) A17 (5S,9S) A18 (5S,9S) A19 (5S,9S) A2 (1S,9S,10S) A20 (7S,9S) A21 (7S,9S) A22 (6S,9S) A23 (6S,9S) A24 (6S,9S) A25 (7S,9S) A26 (7S,9S) A27 (7S,9S) A28 (7S,9S) A29 (7S,9S) A3 (1S,9S) A30 (7S,9S) A31 (7S,9S) A32 (7S,9S) A33 (7S,9S) A34 (7S,9S) A35 (7S,9S) A36 (7S,9S) A37 (9S) A38 (9S) A39 (9S) A4 (9S,10S) A40 (9S) A41 (9S) A42 (9S) A43 (9S) A45 (9S) A46 (9S) A47 (9S) A48 (9S) A49 (9S)

59 Existing Flows_ Prepared by Otak HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Printed 1/23/2012 Page 5 Area (acres) CN Area Listing (selected nodes) (continued) Description (subcatchment-numbers) A5 (1S,9S,10S) A50B (11S) A51B (11S) A55 (11S) A56 (9S) A6 (1S,9S,10S) A7 (1S,9S,10S) A8 (1S,9S,10S) A9 (1S,9S,10S) ACD1 (OS3) ACD10 (OS3) ACD11 (OS3) ACD14 (OS3) ACD15 (OS3) ACD17 (OS3) ACD2 (OS3) ACD3 (OS3) ACD6 (OS3) ACD7 (OS3) ACD9 (OS3) AER (OS3) AHS1000 (OS1B) AHS1001 (OS1B) AHS1002 (OS1B) AHS1003 (OS1B) AHS1004 (OS1B) AHS1005 (OS1B) AHS1006 (OS1B) AHS1011 (OS2B) AHS1012 (OS1B) AHS1013 (OS2B) AHS1014 (OS2B) AHS1015 (OS2B) AHS1018 (OS1B) AHS1019 (OS2B) AHS5012 (OS3) AHS5015 (OS3) AHS5016 (OS3) AHS5017 (OS3) AHS5018 (OS3) AHS5019 (OS3)

60 Existing Flows_ Prepared by Otak HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Printed 1/23/2012 Page 6 Area (acres) CN Area Listing (selected nodes) (continued) Description (subcatchment-numbers) AHS5025 (OS3) AHS5026 (OS3) AHS5033 (OS3) AHS5034 (OS3) AHS5035 (OS3) AHS5036 (OS3) AHS5054 (OS3) AHS5055 (OS3) AHS5058 (OS3) AHS5064 (OS3) AHS5065 (OS3) AHS5067 (OS3) AHS5069 (OS3) AHS5074 (OS3) ALA (OS3) ALA3 (OS3) ALA4 (OS3) ALA5 (OS3) ALA6 (OS3) ALA7 (OS3) ALA8 (OS3) AOW1 (OS3) AOW12 (OS3) AOW13 (OS3) AOW14 (OS3) AOW15 (OS3) AOW16 (OS3) AOW17 (OS3) AOW18 (OS3) AOW19 (OS3) AOW20 (OS3) AOW21 (OS3) AOW7 (OS3) AOW8 (OS3) APR1 (OS3) APR2 (OS3) APR3 (OS3) APR4 (OS3) Last OS1B (OS1B) OR 214 Area (9S) OS1 (OS5)

61 Existing Flows_ Prepared by Otak HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Printed 1/23/2012 Page 7 Area (acres) CN OS2 (OS5) OS3 (OS5) OS4 (OS5) SBOR (6S) Area Listing (selected nodes) (continued) Description (subcatchment-numbers)

62 Existing Flows_ Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 8 Summary for Subcatchment 1S: West 214 Runoff = hrs, Volume= af, Depth= 0.76" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.10 hrs Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Area (ac) CN Description * A11 * A10 * A9 * A8 * A12 * A7 * A6 * A5 * A5B * A3 * A3B * A4 * A2 * A1 * A1B Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.2 Direct Entry, Existing Summary for Subcatchment 2S: WD D2 Runoff = hrs, Volume= af, Depth= 0.46" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.10 hrs Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Area (ac) CN Description * A14 * A14B * A15 * A15B * A16 * A16B Weighted Average Pervious Area Impervious Area

63 Existing Flows_ Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 9 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.7 Direct Entry, Existing Flow Summary for Subcatchment 5S: HSC EB D5 Runoff = hrs, Volume= af, Depth= 0.93" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.10 hrs Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Area (ac) CN Description * A17 * A18 * A Weighted Average Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Existing Summary for Subcatchment 6S: B2 D6 Runoff = hrs, Volume= af, Depth= 0.93" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.10 hrs Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Area (ac) CN Description * A22 * A23 * A24 * SBOR Weighted Average Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.9 Direct Entry, Existing Summary for Subcatchment 7S: AR1 D7 Runoff = hrs, Volume= af, Depth= 0.56" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.10 hrs Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14"

64 Existing Flows_ Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 10 Area (ac) CN Description * A25 * A25B * A26 * A26B * A27 * A28 * A28B * A29 * A29B * A30 * A31 * A32 * A32B * A33 * A33B * A34 * A35 * A36 * A20 * A20B * A Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.4 Direct Entry, Existing Summary for Subcatchment 9S: OR 214 Runoff = hrs, Volume= af, Depth= 0.62" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.10 hrs Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14"

65 Existing Flows_ Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 11 Area (ac) CN Description * A1 * A1B * A2 * A3 * A4 * A5 * A5B * A6 * A6B * A7 * A7B * A8 * A9 * A9B * A10 * A10B * A11 * A11B * A12 * A12B * A13 * A13B * A15 * A15B * A16 * A17 * A17B * A18 * A19 * A20 * A21 * A22 * A23 * A23B * A24 * A25 * A26 * A26B * A27 * A27B * A28 * A29 * A29B * A30 * A30B * A31 * A31B * A32 * A32B * A33 * A34

66 Existing Flows_ Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 12 * A35 * A36 * A36B * A37 * A37B * A38 * A38B * A39 * A39B * A40 * A41 * A42 * A43 * A44 * A45 * A46 * A47 * A48 * A49 * A14 * A14B * A56 * OR 214 Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 24.4 Direct Entry, OR 214 east side Summary for Subcatchment 10S: HSC EAST Runoff = hrs, Volume= af, Depth= 0.62" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.10 hrs Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14"

67 Existing Flows_ Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 13 Area (ac) CN Description * A1 * A1B * A2 * A2b * A3 * A4 * A5 * A6 * A7 * A8 * A9 * A Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 22.5 Direct Entry, existing Summary for Subcatchment 11S: NB Ramps Runoff = hrs, Volume= af, Depth= 0.22" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.10 hrs Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Area (ac) CN Description * A50 * A50B * A51 * A51B * A52 * A53 * A53B * A54 * A Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry,

68 Existing Flows_ Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 14 Summary for Subcatchment OS1B: 100% OS1 Runoff = hrs, Volume= af, Depth= 0.51" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.10 hrs Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Area (ac) CN Description * AHS1000 * AHS1000B * AHS1001 * AHS1001B * AHS1002 * AHS1002B * AHS1003 * AHS1003B * AHS1004 * AHS1004B * AHS1005 * AHS1005B * AHS1006 * AHS1006B * AHS1012 * AHS1012B * AHS1018 * ASH1018B * Last OS1B Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Summary for Subcatchment OS2B: 100% OS2 Runoff = hrs, Volume= af, Depth= 0.56" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.10 hrs Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14"

69 Existing Flows_ Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 15 Area (ac) CN Description * AHS1011 * AHS1011B * AHS1013 * AHS1013B * AHS1014 * AHS1014B * AHS1015 * AHS1015B * AHS1011 * AHS1011B * AHS1013 * AHS1014 * AHS1014B * AHS Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Summary for Subcatchment OS3: 100% OS3 Runoff = hrs, Volume= af, Depth= 0.76" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.10 hrs Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14"

70 Existing Flows_ Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 16 Area (ac) CN Description * ACD1 * ACD1B * ACD2 * ACD2B * ACD3 * ACD3B * ACD6 * ACDB * ACD7 * ACD7B * ACD9 * ACD9B * ACD10 * ACD0B * ACD11 * ACD11B * ACD14 * ACD14B * ACD15 * ACD15B * ACD17 * ACD17B * AER * ALA * ALA3 * ALA4 * ALA5 * ALA6 * ALA7 * ALA8 * AOW7 * AOW8 * AOW1 * AOW12 * AOW13 * AOW13B * AOW14 * AOW14B * AOW15 * AOW15B * AOW16 * AOW16B * AOW17 * AOW17B * AOW18 * AOW18B * AOW19 * AOW19B * AOW20 * AOW20B * AOW21

71 Existing Flows_ Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 17 * AOW21B * APR1 * APR2 * APR3 * APR4 * AHS5012 * AHS5025 * AHS5026 * AHS5033 * AHS5034 * AHS5035 * AHS5036 * AHS5017 * AHS5018 * AHS5019 * AHS5054 * AHS5055 * AHS5058 * AHS5058B * AHS5067 * AHS5067B * AHS5069 * AHS5069B * AHS5074 * AHS5074B * AHS5064 * AHS5064B * AHS5065 * AHS5065B * AHS5015 * AHS Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Summary for Subcatchment OS5: 100% OS5 Runoff = hrs, Volume= af, Depth= 0.93" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.10 hrs Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14"

72 Existing Flows_ Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 18 Area (ac) CN Description * OS1 * OS3 * OS4 * OS Weighted Average Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Summary for Subcatchment OS7: 100% O7 Runoff = hrs, Volume= af, Depth= 0.02" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.10 hrs Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Area (ac) CN Description * AAR Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Summary for Link 6L: Senecal Creek Inflow Area = ac, 92.06% Impervious, Inflow Depth = 0.76" for 50% 2 Yr Storm event Inflow = hrs, Volume= af Primary = hrs, Volume= af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= hrs, dt= 0.10 hrs Summary for Link 7L: E Senecal Creek Inflow Area = ac, 88.67% Impervious, Inflow Depth = 0.72" for 50% 2 Yr Storm event Inflow = hrs, Volume= af Primary = hrs, Volume= af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= hrs, dt= 0.10 hrs Summary for Link 10L: ES Creek Inflow Area = ac, 88.91% Impervious, Inflow Depth = 0.72" for 50% 2 Yr Storm event Inflow = hrs, Volume= af Primary = hrs, Volume= af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= hrs, dt= 0.10 hrs

73 Existing Flows_ Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 19 Summary for Link GC: Goose Creek Inflow Area = ac, 81.37% Impervious, Inflow Depth = 0.54" for 50% 2 Yr Storm event Inflow = hrs, Volume= af Primary = hrs, Volume= af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= hrs, dt= 0.10 hrs

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75 Existing Flows_ Type IA 24-hr 10 Year Storm Rainfall=3.10" Prepared by Otak Printed 1/20/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 1 Time span= hrs, dt=0.10 hrs, 261 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1S: West 214 Subcatchment 2S: WD D2 Subcatchment 5S: HSC EB D5 Subcatchment 6S: B2 D6 Subcatchment 7S: AR1 D7 Subcatchment 9S: OR 214 Subcatchment 10S: HSC EAST Subcatchment 11S: NB Ramps Subcatchment OS1B: 100% OS1 Subcatchment OS2B: 100% OS2 Subcatchment OS3: 100% OS3 Subcatchment OS5: 100% OS5 Subcatchment OS7: 100% O7 Link 6L: Senecal Creek Link 7L: E Senecal Creek Link 10L: ES Creek Runoff Area=1.196 ac 92.06% Impervious Runoff Depth=2.65" Tc=12.2 min CN=96 Runoff=0.81 cfs af Runoff Area=0.810 ac 74.32% Impervious Runoff Depth=2.16" Tc=10.7 min CN=91 Runoff=0.45 cfs af Runoff Area=0.840 ac % Impervious Runoff Depth=2.87" Tc=6.0 min CN=98 Runoff=0.61 cfs af Runoff Area=0.851 ac % Impervious Runoff Depth=2.87" Tc=9.9 min CN=98 Runoff=0.62 cfs af Runoff Area=2.842 ac 81.35% Impervious Runoff Depth=2.35" Tc=13.4 min CN=93 Runoff=1.70 cfs af Runoff Area=7.649 ac 86.42% Impervious Runoff Depth=2.45" Tc=24.4 min CN=94 Runoff=4.42 cfs af Runoff Area=1.840 ac 87.34% Impervious Runoff Depth=2.45" Tc=22.5 min CN=94 Runoff=1.08 cfs af Runoff Area=3.390 ac 46.87% Impervious Runoff Depth=1.60" Tc=5.0 min CN=84 Runoff=1.29 cfs af Runoff Area=8.273 ac 79.98% Impervious Runoff Depth=2.26" Tc=5.0 min CN=92 Runoff=4.87 cfs af Runoff Area=2.930 ac 81.54% Impervious Runoff Depth=2.35" Tc=5.0 min CN=93 Runoff=1.80 cfs af Runoff Area= ac 92.57% Impervious Runoff Depth=2.65" Tc=5.0 min CN=96 Runoff=23.40 cfs af Runoff Area=8.270 ac % Impervious Runoff Depth=2.87" Tc=5.0 min CN=98 Runoff=6.07 cfs af Runoff Area=0.600 ac 0.00% Impervious Runoff Depth=0.77" Tc=5.0 min CN=70 Runoff=0.07 cfs af Inflow=0.81 cfs af Primary=0.81 cfs af Inflow=37.53 cfs af Primary=37.53 cfs af Inflow=34.21 cfs af Primary=34.21 cfs af

76 Existing Flows_ Type IA 24-hr 10 Year Storm Rainfall=3.10" Prepared by Otak Printed 1/20/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 2 Link GC: Goose Creek Inflow=7.58 cfs af Primary=7.58 cfs af

77 Existing Flows_ Type IA 24-hr 42% 2 yr Storm Rainfall=0.96" Prepared by Otak Printed 1/20/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 3 Time span= hrs, dt=0.10 hrs, 261 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1S: West 214 Subcatchment 2S: WD D2 Subcatchment 5S: HSC EB D5 Subcatchment 6S: B2 D6 Subcatchment 7S: AR1 D7 Subcatchment 9S: OR 214 Subcatchment 10S: HSC EAST Subcatchment 11S: NB Ramps Subcatchment OS1B: 100% OS1 Subcatchment OS2B: 100% OS2 Subcatchment OS3: 100% OS3 Subcatchment OS5: 100% OS5 Subcatchment OS7: 100% O7 Link 6L: Senecal Creek Link 7L: E Senecal Creek Link 10L: ES Creek Runoff Area=1.196 ac 92.06% Impervious Runoff Depth=0.59" Tc=12.2 min CN=96 Runoff=0.18 cfs af Runoff Area=0.810 ac 74.32% Impervious Runoff Depth=0.33" Tc=10.7 min CN=91 Runoff=0.05 cfs af Runoff Area=0.840 ac % Impervious Runoff Depth=0.75" Tc=6.0 min CN=98 Runoff=0.17 cfs af Runoff Area=0.851 ac % Impervious Runoff Depth=0.75" Tc=9.9 min CN=98 Runoff=0.17 cfs af Runoff Area=2.842 ac 81.35% Impervious Runoff Depth=0.42" Tc=13.4 min CN=93 Runoff=0.26 cfs af Runoff Area=7.649 ac 86.42% Impervious Runoff Depth=0.47" Tc=24.4 min CN=94 Runoff=0.74 cfs af Runoff Area=1.840 ac 87.34% Impervious Runoff Depth=0.47" Tc=22.5 min CN=94 Runoff=0.18 cfs af Runoff Area=3.390 ac 46.87% Impervious Runoff Depth=0.13" Tc=5.0 min CN=84 Runoff=0.03 cfs af Runoff Area=8.273 ac 79.98% Impervious Runoff Depth=0.37" Tc=5.0 min CN=92 Runoff=0.67 cfs af Runoff Area=2.930 ac 81.54% Impervious Runoff Depth=0.42" Tc=5.0 min CN=93 Runoff=0.28 cfs af Runoff Area= ac 92.57% Impervious Runoff Depth=0.59" Tc=5.0 min CN=96 Runoff=5.06 cfs af Runoff Area=8.270 ac % Impervious Runoff Depth=0.75" Tc=5.0 min CN=98 Runoff=1.63 cfs af Runoff Area=0.600 ac 0.00% Impervious Runoff Depth=0.00" Tc=5.0 min CN=70 Runoff=0.00 cfs af Inflow=0.18 cfs af Primary=0.18 cfs af Inflow=7.87 cfs af Primary=7.87 cfs af Inflow=7.25 cfs af Primary=7.25 cfs af

78 Existing Flows_ Type IA 24-hr 42% 2 yr Storm Rainfall=0.96" Prepared by Otak Printed 1/20/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 4 Link GC: Goose Creek Inflow=1.10 cfs af Primary=1.10 cfs af

79 Existing Flows_ Type IA 24-hr 50 Year Storm Rainfall=4.02" Prepared by Otak Printed 1/20/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 5 Time span= hrs, dt=0.10 hrs, 261 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1S: West 214 Subcatchment 2S: WD D2 Subcatchment 5S: HSC EB D5 Subcatchment 6S: B2 D6 Subcatchment 7S: AR1 D7 Subcatchment 9S: OR 214 Subcatchment 10S: HSC EAST Subcatchment 11S: NB Ramps Subcatchment OS1B: 100% OS1 Subcatchment OS2B: 100% OS2 Subcatchment OS3: 100% OS3 Subcatchment OS5: 100% OS5 Subcatchment OS7: 100% O7 Link 6L: Senecal Creek Link 7L: E Senecal Creek Link 10L: ES Creek Runoff Area=1.196 ac 92.06% Impervious Runoff Depth=3.56" Tc=12.2 min CN=96 Runoff=1.09 cfs af Runoff Area=0.810 ac 74.32% Impervious Runoff Depth=3.04" Tc=10.7 min CN=91 Runoff=0.64 cfs af Runoff Area=0.840 ac % Impervious Runoff Depth=3.79" Tc=6.0 min CN=98 Runoff=0.80 cfs af Runoff Area=0.851 ac % Impervious Runoff Depth=3.79" Tc=9.9 min CN=98 Runoff=0.81 cfs af Runoff Area=2.842 ac 81.35% Impervious Runoff Depth=3.24" Tc=13.4 min CN=93 Runoff=2.36 cfs af Runoff Area=7.649 ac 86.42% Impervious Runoff Depth=3.34" Tc=24.4 min CN=94 Runoff=6.04 cfs af Runoff Area=1.840 ac 87.34% Impervious Runoff Depth=3.34" Tc=22.5 min CN=94 Runoff=1.48 cfs af Runoff Area=3.390 ac 46.87% Impervious Runoff Depth=2.39" Tc=5.0 min CN=84 Runoff=2.02 cfs af Runoff Area=8.273 ac 79.98% Impervious Runoff Depth=3.14" Tc=5.0 min CN=92 Runoff=6.81 cfs af Runoff Area=2.930 ac 81.54% Impervious Runoff Depth=3.24" Tc=5.0 min CN=93 Runoff=2.49 cfs af Runoff Area= ac 92.57% Impervious Runoff Depth=3.56" Tc=5.0 min CN=96 Runoff=31.21 cfs af Runoff Area=8.270 ac % Impervious Runoff Depth=3.79" Tc=5.0 min CN=98 Runoff=7.94 cfs af Runoff Area=0.600 ac 0.00% Impervious Runoff Depth=1.34" Tc=5.0 min CN=70 Runoff=0.16 cfs af Inflow=1.09 cfs af Primary=1.09 cfs af Inflow=50.49 cfs af Primary=50.49 cfs af Inflow=45.97 cfs af Primary=45.97 cfs af

80 Existing Flows_ Type IA 24-hr 50 Year Storm Rainfall=4.02" Prepared by Otak Printed 1/20/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 6 Link GC: Goose Creek Inflow=10.53 cfs af Primary=10.53 cfs af

81 Existing Flows_ Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Prepared by Otak Printed 1/20/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 7 Time span= hrs, dt=0.10 hrs, 261 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1S: West 214 Subcatchment 2S: WD D2 Subcatchment 5S: HSC EB D5 Subcatchment 6S: B2 D6 Subcatchment 7S: AR1 D7 Subcatchment 9S: OR 214 Subcatchment 10S: HSC EAST Subcatchment 11S: NB Ramps Subcatchment OS1B: 100% OS1 Subcatchment OS2B: 100% OS2 Subcatchment OS3: 100% OS3 Subcatchment OS5: 100% OS5 Subcatchment OS7: 100% O7 Link 6L: Senecal Creek Link 7L: E Senecal Creek Link 10L: ES Creek Runoff Area=1.196 ac 92.06% Impervious Runoff Depth=0.76" Tc=12.2 min CN=96 Runoff=0.23 cfs af Runoff Area=0.810 ac 74.32% Impervious Runoff Depth=0.46" Tc=10.7 min CN=91 Runoff=0.08 cfs af Runoff Area=0.840 ac % Impervious Runoff Depth=0.93" Tc=6.0 min CN=98 Runoff=0.20 cfs af Runoff Area=0.851 ac % Impervious Runoff Depth=0.93" Tc=9.9 min CN=98 Runoff=0.21 cfs af Runoff Area=2.842 ac 81.35% Impervious Runoff Depth=0.56" Tc=13.4 min CN=93 Runoff=0.36 cfs af Runoff Area=7.649 ac 86.42% Impervious Runoff Depth=0.62" Tc=24.4 min CN=94 Runoff=1.02 cfs af Runoff Area=1.840 ac 87.34% Impervious Runoff Depth=0.62" Tc=22.5 min CN=94 Runoff=0.25 cfs af Runoff Area=3.390 ac 46.87% Impervious Runoff Depth=0.22" Tc=5.0 min CN=84 Runoff=0.07 cfs af Runoff Area=8.273 ac 79.98% Impervious Runoff Depth=0.51" Tc=5.0 min CN=92 Runoff=0.97 cfs af Runoff Area=2.930 ac 81.54% Impervious Runoff Depth=0.56" Tc=5.0 min CN=93 Runoff=0.39 cfs af Runoff Area= ac 92.57% Impervious Runoff Depth=0.76" Tc=5.0 min CN=96 Runoff=6.57 cfs af Runoff Area=8.270 ac % Impervious Runoff Depth=0.93" Tc=5.0 min CN=98 Runoff=2.01 cfs af Runoff Area=0.600 ac 0.00% Impervious Runoff Depth=0.02" Tc=5.0 min CN=70 Runoff=0.00 cfs af Inflow=0.23 cfs af Primary=0.23 cfs af Inflow=10.24 cfs af Primary=10.24 cfs af Inflow=9.41 cfs af Primary=9.41 cfs af

82 Existing Flows_ Type IA 24-hr 50% 2 Yr Storm Rainfall=1.14" Prepared by Otak Printed 1/20/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 8 Link GC: Goose Creek Inflow=1.58 cfs af Primary=1.58 cfs af

83 P_R Park and Ride Plus Evergreen Rd Subcat Reach Pond Link Drainage Diagram for Proposed Detention_ Prepared by Otak, Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC

84 Proposed Detention_ Prepared by Otak HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Printed 1/23/2012 Page 2 Area (acres) CN Area Listing (selected nodes) Description (subcatchment-numbers) PR_APR2B (P_R) PR_APR2 (P_R) PR_APR3 (P_R) PR_APR4 (P_R) PR_APR5 (P_R) TOTAL AREA

85 Proposed Detention_ Type IA 24-hr 50% 2 yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 3 Summary for Subcatchment P_R: Park and Ride Plus Evergreen Rd Runoff = hrs, Volume= af, Depth= 0.51" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.05 hrs Type IA 24-hr 50% 2 yr Storm Rainfall=1.14" Area (ac) CN Description * PR_APR2 * PR_APR2B * PR_APR3 * PR_APR4 * PR_APR Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry,

86

87 NOR 1S OS2 NB Ramp OR % OS2 SE2 OS5 1P 3P P1 OS3 5P HS2 SE 214C 100% OS5 NB Gore WQ ESC OR % OS3 Goose Creek OR214 EAST UD 6P Senecal Creek 3B (1) 4x6x250 Box SE1 SE 214A SE3 UD1 UD 214 West 4P ES Creek 2P SB Gore WQ D9 Arney D9 GP GC POND HS1 OR214 EAST NW 214 HSC OS7 OS1B HSC WB 100% O7 100% OS1 Subcat Reach Pond Link Drainage Diagram for Proposed Detention_ Prepared by Otak, Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC

88 Proposed Detention_ Prepared by Otak HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Printed 1/23/2012 Page 2 Area (acres) CN Area Listing (selected nodes) Description (subcatchment-numbers) AAR1 (OS7) ACD0B (OS3) ACD11B (OS3) ACD14B (OS3) ACD15B (OS3) ACD17B (OS3) ACD1B (OS3) ACD2B (OS3) ACD3B (OS3) ACD7B (OS3) ACD9B (OS3) ACDB (OS3) AHS1000B (OS1B) AHS1001B (OS1B) AHS1002B (OS1B) AHS1003B (OS1B) AHS1004B (OS1B) AHS1005B (OS1B) AHS1006B (OS1B) AHS1011B (OS2) AHS1012B (OS1B) AHS1013B (OS2) AHS1014B (OS2) AHS1015B (OS2) AHS5000 (1S) AHS5058B (OS3) AHS5064B (OS3) AHS5065B (OS3) AHS5067B (OS3) AHS5069B (OS3) AHS5074B (OS3) AOW13B (OS3) AOW14B (OS3) AOW15B (OS3) AOW16B (OS3) AOW17B (OS3) AOW18B (OS3) AOW19B (OS3) AOW20B (OS3) AOW21B (OS3) ASH1018B (OS1B)

89 Proposed Detention_ Prepared by Otak HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Printed 1/23/2012 Page 3 Area (acres) CN Area Listing (selected nodes) (continued) Description (subcatchment-numbers) A1 (SE3) A10 (SE2) A11 (SE2) A12 (SE2) A13 (SE1) A14 (SE1) A16 (SE1) A19 (SE1) A2 (SE3) A20 (SE1) A21 (SE1) A3 (SE3) A4 (SE3) A5 (SE3) A57 (1S) A6 (SE3) A7 (SE2) A8 (SE2) A9 (SE2) ACD1 (1S,OS3) ACD10 (OS3) ACD11 (OS3) ACD14 (OS3) ACD15 (OS3) ACD17 (OS3) ACD2 (1S,OS3) ACD3 (OS3) ACD6 (OS3) ACD7 (OS3) ACD9 (OS3) AER (OS3) AER1 (1S) AER2 (1S) AHS1 (NOR) AHS10 (1S) AHS1000 (OS1B) AHS1001 (OS1B) AHS1002 (OS1B) AHS1003 (OS1B) AHS1004 (OS1B) AHS1005 (OS1B)

90 Proposed Detention_ Prepared by Otak HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Printed 1/23/2012 Page 4 Area (acres) CN Area Listing (selected nodes) (continued) Description (subcatchment-numbers) AHS1006 (OS1B) AHS1010 (HS2) AHS1011 (OS2) AHS1012 (OS1B) AHS1013 (OS2) AHS1014 (OS2) AHS1015 (OS2) AHS1017 (HS2) AHS1018 (OS1B) AHS1019 (OS2) AHS11 (1S) AHS12 (1S) AHS13 (1S) AHS14 (1S) AHS15 (1S) AHS16 (1S) AHS17 (1S) AHS18 (1S) AHS19 (1S) AHS2 (1S) AHS20 (1S) AHS21 (1S) AHS22 (1S) AHS23 (1S) AHS24 (1S) AHS25 (1S) AHS26 (1S) AHS27 (1S) AHS28 (1S) AHS29 (1S) AHS3 (1S) AHS30 (1S) AHS31 (1S) AHS32 (1S) AHS33 (1S) AHS34 (1S) AHS35 (1S) AHS36 (1S) AHS37 (1S) AHS38 (1S) AHS39 (1S)

91 Proposed Detention_ Prepared by Otak HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Printed 1/23/2012 Page 5 Area (acres) CN Area Listing (selected nodes) (continued) Description (subcatchment-numbers) AHS4 (1S) AHS40 (1S) AHS41 (1S) AHS42 (1S) AHS43 (1S) AHS44 (1S) AHS45 (1S) AHS46 (1S) AHS47 (1S) AHS48 (1S) AHS49 (1S) AHS5 (1S) AHS50 (1S) AHS5012 (OS3) AHS5015 (OS3) AHS5016 (OS3) AHS5017 (OS3) AHS5018 (OS3) AHS5019 (OS3) AHS5025 (OS3) AHS5026 (OS3) AHS5033 (OS3) AHS5034 (OS3) AHS5035 (OS3) AHS5036 (OS3) AHS5054 (OS3) AHS5055 (OS3) AHS5058 (OS3) AHS5064 (OS3) AHS5065 (OS3) AHS5067 (OS3) AHS5069 (OS3) AHS5074 (OS3) AHS51 (1S) AHS52 (1S) AHS53 (1S) AHS54 (1S) AHS55 (1S) AHS56 (NOR) AHS6 (1S) AHS7 (1S)

92 Proposed Detention_ Prepared by Otak HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Printed 1/23/2012 Page 6 Area (acres) CN Area Listing (selected nodes) (continued) Description (subcatchment-numbers) AHS8 (1S) AHS9 (1S) ALA (OS3) ALA1 (1S) ALA2 (1S) ALA3 (1S,OS3) ALA4 (1S,OS3) ALA5 (1S,OS3) ALA6 (1S,OS3) ALA7 (OS3) ALA8 (OS3) AOW1 (1S) AOW11 (OS3) AOW12 (OS3) AOW13 (OS3) AOW14 (OS3) AOW15 (OS3) AOW16 (OS3) AOW17 (OS3) AOW18 (OS3) AOW19 (OS3) AOW2 (1S) AOW20 (OS3) AOW21 (OS3) AOW3 (1S) AOW4 (1S) AOW5 (1S) AOW6 (1S) AOW7 (OS3) AOW7_1S (1S) AOW8 (OS3) AOW8_1S (1S) APR1 (OS3) APR2 (OS3) APR3 (OS3) APR4 (OS3) D2A1 (UD1) D2A2 (UD1) D2A3 (UD1) D2A4 (UD1) D2A5 (UD1)

93 Proposed Detention_ Prepared by Otak HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Printed 1/23/2012 Page 7 Area (acres) CN Area Listing (selected nodes) (continued) Description (subcatchment-numbers) D2A6 (UD1) D2A7 (UD1) D2A8 (HSC) D3A1 (UD1) D3A2 (UD1) D3A3 (UD1) D4A1 (HSC) D4A2 (HSC) D4A3 (HSC) D4A4 (HSC) D4A5 (HSC) D4A6 (D9) D4A7 (D9) D4A8 (D9) D5A1 (HSC) D5A2 (HSC) D5A3 (HSC) D5A4 (HSC) D6A1 (D9) D6A2 (D9) D6A3 (D9) D7A1 (D9) D7A2 (D9) D7A3 (D9) D8A1 (D9) D8A2 (D9) D8A3 (UD1) D8A4 (UD1) D9A1 (UD1) D9A2 (UD1) D9A3 (D9) D9A4 (D9) D9A5 (D9) D9A6 (D9) D9A7 (D9) D9A8 (D9) D9A9 (D9) HS1000 (HS1) HS1001 (HS1) HS1002 (HS1) HS1003 (HS1)

94 Proposed Detention_ Prepared by Otak HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Printed 1/23/2012 Page 8 Area (acres) CN Area Listing (selected nodes) (continued) Description (subcatchment-numbers) HS1004 (HS1) HS1005 (HS1) HS1006 (HS1) HS1007 (HS1) HS1008 (HS1) HS1009 (HS2) HS1010 (HS2) HS1011 (HS2) Last D9 (D9) Last NOR (NOR) Last OSB1 (OS1B) OR1 (NOR) OR2 (NOR) OR3 (NOR) OR4 (NOR) OR5 (NOR) OR6 (NOR) OR6A (NOR) OR7 (NOR) OR8 (NOR) OS1 (OS5) OS2 (OS5) OS3 (OS5) OS4 (OS5) sbor (UD1) TOTAL AREA

95 Proposed Detention_ Type IA 24-hr 50% 2 yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 9 Summary for Subcatchment 1S: OR 214 Runoff = hrs, Volume= af, Depth= 0.76" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.05 hrs Type IA 24-hr 50% 2 yr Storm Rainfall=1.14"

96 Proposed Detention_ Type IA 24-hr 50% 2 yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 10 Area (ac) CN Description * ACD1 * ACD2 * AER1 * AER2 * AHS2 * AHS3 * AHS4 * AHS5 * AHS6 * AHS7 * AHS8 * AHS9 * AHS10 * AHS11 * AHS12 * AHS13 * AHS14 * AHS15 * AHS16 * AHS17 * AHS18 * AHS19 * AHS20 * AHS21 * AHS22 * AHS23 * AHS24 * AHS25 * AHS26 * AHS27 * AHS28 * AHS29 * AHS30 * AHS31 * AHS32 * AHS33 * AHS34 * AHS35 * AHS36 * AHS37 * AHS38 * AHS39 * AHS40 * AHS41 * AHS42 * AHS43 * AHS44 * AHS45 * AHS46 * AHS47 * AHS48

97 Proposed Detention_ Type IA 24-hr 50% 2 yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 11 * AHS49 * AHS50 * AHS51 * AHS52 * AHS53 * AHS54 * AHS55 * ALA1 * ALA2 * ALA3 * ALA4 * ALA5 * ALA6 * AOW1 * AOW2 * AOW3 * AOW4 * AOW5 * AOW6 * AOW7_1S * AOW8_1S * A57 * AHS Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.1 Direct Entry, Proposed [49] Hint: Tc<2dt may require smaller dt Summary for Subcatchment D9: Arney D9 Runoff = hrs, Volume= af, Depth= 0.93" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.05 hrs Type IA 24-hr 50% 2 yr Storm Rainfall=1.14"

98 Proposed Detention_ Type IA 24-hr 50% 2 yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 12 Area (ac) CN Description * D9A3 * D9A4 * D9A5 * D9A6 * D9A7 * D9A8 * D9A9 * D7A1 * D7A2 * D7A3 * D4A7 * D4A8 * D6A1 * D6A2 * D6A3 * D4A6 * D4A7 * D4A8 * D8A1 * D8A2 * Last D Weighted Average Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Proposed [49] Hint: Tc<2dt may require smaller dt Summary for Subcatchment HS1: OR214 EAST Runoff = hrs, Volume= af, Depth= 0.93" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.05 hrs Type IA 24-hr 50% 2 yr Storm Rainfall=1.14" Area (ac) CN Description * HS1000 * HS1001 * HS1002 * HS1003 * HS1004 * HS1005 * HS1006 * HS1007 * HS Weighted Average Impervious Area

99 Proposed Detention_ Type IA 24-hr 50% 2 yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 13 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, [49] Hint: Tc<2dt may require smaller dt Summary for Subcatchment HS2: OR214 EAST UD Runoff = hrs, Volume= af, Depth= 0.93" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.05 hrs Type IA 24-hr 50% 2 yr Storm Rainfall=1.14" Area (ac) CN Description * HS1009 * HS1010 * HS1011 * AHS1017 * AHS Weighted Average Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Summary for Subcatchment HSC: HSC WB Runoff = hrs, Volume= af, Depth= 0.93" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.05 hrs Type IA 24-hr 50% 2 yr Storm Rainfall=1.14" Area (ac) CN Description * D2A8 * D4A1 * D4A2 * D4A3 * D4A4 * D4A5 * D5A1 * D5A2 * D5A3 * D5A Weighted Average Impervious Area

100 Proposed Detention_ Type IA 24-hr 50% 2 yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 14 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Proposed Summary for Subcatchment NOR: NB Ramp Runoff = hrs, Volume= af, Depth= 0.93" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.05 hrs Type IA 24-hr 50% 2 yr Storm Rainfall=1.14" Area (ac) CN Description * OR3 * OR4 * OR5 * OR2 * OR7 * OR6A * OR6 * OR1 * AHS1 * AHS56 * OR8 * Last NOR Weighted Average Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, [49] Hint: Tc<2dt may require smaller dt Summary for Subcatchment OS1B: 100% OS1 Runoff = hrs, Volume= af, Depth= 0.51" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.05 hrs Type IA 24-hr 50% 2 yr Storm Rainfall=1.14"

101 Proposed Detention_ Type IA 24-hr 50% 2 yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 15 Area (ac) CN Description * AHS1000 * AHS1000B * AHS1001 * AHS1001B * AHS1002 * AHS1002B * AHS1003 * AHS1003B * AHS1004 * AHS1004B * AHS1005 * AHS1005B * AHS1006 * AHS1006B * AHS1012 * AHS1012B * AHS1018 * ASH1018B * Last OSB Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, [49] Hint: Tc<2dt may require smaller dt Summary for Subcatchment OS2: 100% OS2 Runoff = hrs, Volume= af, Depth= 0.56" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.05 hrs Type IA 24-hr 50% 2 yr Storm Rainfall=1.14"

102 Proposed Detention_ Type IA 24-hr 50% 2 yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 16 Area (ac) CN Description * AHS1011 * AHS1011B * AHS1013 * AHS1013B * AHS1014 * AHS1014B * AHS1015 * AHS1015B * AHS1011 * AHS1011B * AHS1013 * AHS1014 * AHS1014B * AHS Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, [49] Hint: Tc<2dt may require smaller dt Summary for Subcatchment OS3: 100% OS3 Runoff = hrs, Volume= af, Depth= 0.76" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.05 hrs Type IA 24-hr 50% 2 yr Storm Rainfall=1.14"

103 Proposed Detention_ Type IA 24-hr 50% 2 yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 17 Area (ac) CN Description * ACD1 * ACD1B * ACD2 * ACD2B * ACD3 * ACD3B * ACD6 * ACDB * ACD7 * ACD7B * ACD9 * ACD9B * ACD10 * ACD0B * ACD11 * ACD11B * ACD14 * ACD14B * ACD15 * ACD15B * ACD17 * ACD17B * AER * ALA * ALA3 * ALA4 * ALA5 * ALA6 * ALA7 * ALA8 * AOW7 * AOW8 * AOW11 * AOW12 * AOW13 * AOW13B * AOW14 * AOW14B * AOW15 * AOW15B * AOW16 * AOW16B * AOW17 * AOW17B * AOW18 * AOW18B * AOW19 * AOW19B * AOW20 * AOW20B * AOW21

104 Proposed Detention_ Type IA 24-hr 50% 2 yr Storm Rainfall=1.14" Prepared by Otak Printed 1/23/2012 HydroCAD 8.50 s/n HydroCAD Software Solutions LLC Page 18 * AOW21B * APR1 * APR2 * APR3 * APR4 * AHS5012 * AHS5025 * AHS5026 * AHS5033 * AHS5034 * AHS5035 * AHS5036 * AHS5017 * AHS5018 * AHS5019 * AHS5054 * AHS5055 * AHS5058 * AHS5058B * AHS5067 * AHS5067B * AHS5069 * AHS5069B * AHS5074 * AHS5074B * AHS5064 * AHS5064B * AHS5065 * AHS5065B * AHS5015 * AHS Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, [49] Hint: Tc<2dt may require smaller dt Summary for Subcatchment OS5: 100% OS5 Runoff = hrs, Volume= af, Depth= 0.93" Runoff by SCS TR-20 method, UH=SCS, Time Span= hrs, dt= 0.05 hrs Type IA 24-hr 50% 2 yr Storm Rainfall=1.14"