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HomeMy WebLinkAboutWPO201000009 Calculations 2010-02-09TIMMONS GROUP . = -"'tt. QU.i S. �O 0 O 10 O O Q CROZET ELEMENTARY SCHOOL M ao 0 PARKING & STUDENT DROPOFF M J I, Ln N NM N CROZET, VIRGINIA L I r> M � C w O h E L _V O N O N O b M C � N MINOR SITE PLAN AMENDMENT b O � N L '�O I U O DESIGN CALCULATIONS w l " V) V 0 N C m � FEBRUARY 5, 2010 E 0 u c 0 E E 3 3 3 Prepared by: Craig Kotarski Timmons Group 9192 nd Street S.E. Charlottesville, VA 22901 Table of Contents Section Title PondMaker Worksheet Detailed Report Pipe Routing Pond Pack Calculations Pipe Routing Performance Based Water Quality Calculations PondMaker Worksheet Detailed Report: Worksheet (PO -1) - 1 Element Details ID 36 Label Worksheet (PO -1) - 1 Select Pond to Design PO -1 Flow Allowed Below Target 25.0 Flow Allowed Above Target 10.0 Flow Allowed Below Target 25.0 Flow Allowed Above Target 0.0 Volume Allowed Below Target 25.0 Volume Allowed Above Target 50.0 Tolerance Display Display PASS for values within specified tolerance Notes Volume Pond Type Elevation- Area Use Void Space? False Elevation -Area Pond Elevation Pond Area (ft) (ft2) 100.00 1,516.000 101.00 1,995.000 Infiltration Infiltration Method No Infiltration Output Detention Time None Initial Conditions Is Outflow Averaging On? False Define Starting Water Surface Pond Invert Elevation Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 1 of 4 Watertown, CT 06795 USA +1- 203 - 755 -1666 PondMaker Worksheet Detailed Report: Worksheet (PO -1) - 1 101.00 100.88 100.75 100.63 C 100.50 m a� w 100.38 100.25 100.13 Elevation vs. Volume 100.00 r- A 0.000 0.004 0.008 0.012 0.016 0.020 0.024 0.028 0.032 0.036 0.040 Volume (Total) (ac -ft) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.511 2/4/2010 27 Siemon Company Drive Suite 200 W Page 2 of 4 Watertown, CT 06795 USA +1 -203- 755 -1666 PondMaker Worksheet Detailed Report: Worksheet (120-1) - 1 PondMaker Worksheet (Outlet Design) Design Scenario Design Target Peak Target Peak Pond Total Inflow Return Outflow Outflow Inflow Volume Event (ft3 /s) Volume (ft3 /s) (ac -ft) (ac -ft) Post- Development 2 year 2 2.76 (N /A) 3.12 0.026 Post- Development 10 year 10 3.57 (N /A) 4.04 0.033 Post - Development 100 year 100 4.87 (N /A) 5.51 0.046 Estimated Estimated Estimated Design Outlet Structure Estimated Estimated Storage Max Water Freeboard Peak Outflow Peak Outflow (ac -ft) Surface Depth (ft3 /s) vs. Target Elevation (ft) 0.000 100.01 Fail Composite Outlet 0.05 Fail Structure - 1 0.000 100.01 Fail Composite Outlet 0.07 Fail Structure - 1 0.001 100.01 Fail Composite Outlet 0.10 Fail Structure - 1 101.00 .. 100.88 c 100.75 Y w 100.63 d u C 100,50 V) v 100.38 ,J �o 100.25 C 0 a 100.13 100.00 0.00 1.00 2.00 3.00 PondMaker Outlet Design 4.00 5.00 6.00 7.00 8.00 9.00 Flow (ft3 /s) Composite Outlet Structure - 1 -W Target Rating Curve —• Post- Development 2 year - -• Post - Development 10 year Post- Development 100 year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 3 of 4 Watertown, CT 06795 USA +1- 203 - 755 -1666 PondMaker Worksheet Detailed Report: Worksheet (PO -1) - 1 101.00 100.88 0 100.75 m a, 100.63 w v U t 100.50 v 100.38 m c 100.25 0 a 100.13 100.00 PondMaker Routing Design Target Outflow Volume (ac -ft) (N /A) (N /A) (N /A) 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 Flow (ft3 /s) Composite Outlet Structure - 1 -W Target Rating Curve - -- Post- Development 2 year • -- Post - Development 10 year - -• Post - Development 100 year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofiiter Routing.ppc Center [08.11.01.51) 2/4/2010 27 Siemon Company Drive Suite 200 W Page 4 of 4 Watertown, CT 06795 USA +1 -203- 755 -1666 PondMaker Worksheet (Routing Design) Design Scenario Design Target Peak Computed Computed Return Outflow Peak Outflow Peak Outflow Event (ft3 /s) (ft3 /s) vs. Target Post - Development 2 year 2 2.76 1.90 Fail Post - Development 10 year 10 3.57 2.45 Fail Post- Development 100 year 100 4.87 3.41 Fail Computed Computed Routing Outlet Computed Freeboard Maximum Volume Outflow Structure Max Water Depth Storage Outflow Volume vs. Elevation (ac -ft) (ac -ft) Target (ft) 0.026 Fail Composite Outlet Structure - 1 100.30 Fail 0.011 0.033 Fail Composite Outlet 100.39 Fail 0.014 Structure - 1 0.046 Fail Composite Outlet Structure - 1 100.52 Fail 0.019 101.00 100.88 0 100.75 m a, 100.63 w v U t 100.50 v 100.38 m c 100.25 0 a 100.13 100.00 PondMaker Routing Design Target Outflow Volume (ac -ft) (N /A) (N /A) (N /A) 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 Flow (ft3 /s) Composite Outlet Structure - 1 -W Target Rating Curve - -- Post- Development 2 year • -- Post - Development 10 year - -• Post - Development 100 year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofiiter Routing.ppc Center [08.11.01.51) 2/4/2010 27 Siemon Company Drive Suite 200 W Page 4 of 4 Watertown, CT 06795 USA +1 -203- 755 -1666 Project Summary Title Engineer Company Date 2/4/2010 Notes Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 1 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Table of Contents User Notifications 2 Modified Rational Grand Summary 3 Master Network Summary 4 Albemarle Albemarle - 10 Year I -D -F Table 6 I -D -F Table 6 I -D -F Table 10 I -D -F Table 10 I -D -F Table 14 I -D -F Table 14 CM -1 Albemarle - 2 Year Time of Concentration Calculations (Pre- 18 Development) Time of Concentration Calculations (Post- 20 Development) Time of Concentration Calculations (Pre- 18 Development) Time of Concentration Calculations (Post- 20 Development) Time of Concentration Calculations (Pre- 26 Development) Time of Concentration Calculations (Post- 28 Development) Time of Concentration Calculations (Pre- 26 Development) Time of Concentration Calculations (Post- 28 Development) Time of Concentration Calculations (Pre- 34 Development) Time of Concentration Calculations (Post- 36 Development) Time of Concentration Calculations (Pre- 34 Development) Time of Concentration Calculations (Post- 36 Development) 0 -1 Albemarle - 2 Year Table of Contents Outlet Input Data Addition Summary 42 83 Addition Summary 42 Outlet Input Data Addition Summary 44 87 Addition Summary 44 Outlet Input Data Addition Summary 46 91 Addition Summary 46 PO -1 (OUT) Albemarle - 2 Year Time vs. Elevation 48 Time vs. Elevation 48 Time vs. Elevation 54 Time vs. Elevation 54 Time vs. Elevation 60 Time vs. Elevation 60 PO -1 Albemarle - 2 Year Time vs. Volume 66 Time vs. Volume 69 Time vs. Volume 72 PO -1 Albemarle - 2 Year Elevation -Area Volume Curve 75 Volume Equations 76 Elevation -Area Volume Curve 77 Volume Equations 78 Elevation -Area Volume Curve 79 Volume Equations 80 Composite Outlet Albemarle - 2 Year Structure - 1 Outlet Input Data 81 Individual Outlet Curves 83 Composite Rating Curve 84 Outlet Input Data 85 Individual Outlet Curves 87 Composite Rating Curve 88 Outlet Input Data 89 Individual Outlet Curves 91 Composite Rating Curve 92 Table of Contents Outlet -1 Albemarle - 2 Year Diverted Hydrograph 93 Diverted Hydrograph 93 Diverted Hydrograph 95 Diverted Hydrograph 95 Diverted Hydrograph 97 Diverted Hydrograph 97 PO -1 Albemarle - 2 Year Elevation - Volume -Flow Table (Pond) 99 PO -1 (IN) Albemarle - 2 Year Level Pool Pond Routing 100 Summary Level Pool Pond Routing 101 Summary Level Pool Pond Routing 102 Summary PO -1 (OUT) Albemarle - 2 Year Pond Routed Hydrograph 103 (total out) Pond Routed Hydrograph 103 (total out) Pond Routed Hydrograph 105 (total out) Pond Routed Hydrograph 105 (total out) Pond Routed Hydrograph 107 (total out) Pond Routed Hydrograph 107 (total out) PO -1 (IN) Albemarle - 2 Year Pond Inflow Summary 109 Pond Inflow Summary 109 Pond Inflow Summary 111 Pond Inflow Summary 111 Pond Inflow Summary 113 Pond Inflow Summary 113 CM -1 Albemarle - 2 Year C and Area (Pre- Development) Development) C and Area (Post- Development) Development) C and Area (Pre- Development) Development) C and Area (Post- Development) Development) Table of Contents Rational Pre - Development 119 Peak Flow Modified Rational Graph 120 Modified Rational Storm 121 Calculations Modified Rational 122 Hydrograph Rational Pre - Development 119 Peak Flow Modified Rational Graph 120 Modified Rational Storm 121 Calculations Modified Rational 122 Hydrograph C and Area (Pre- 127 Development) C and Area (Post- 128 Development) C and Area (Pre- 127 Development) C and Area (Post- 128 Development) Rational Pre - Development 131 Peak Flow Modified Rational Graph 132 Modified Rational Storm 133 Calculations Modified Rational 134 Hydrograph Rational Pre - Development 131 Peak Flow Modified Rational Graph 132 Modified Rational Storm 133 Calculations Modified Rational 134 Hydrograph C and Area (Pre- 139 Development) C and Area (Post- 140 Development) C and Area (Pre- 139 Development) C and Area (Post- 140 Development) Rational Pre - Development 143 Peak Flow Modified Rational Graph 144 Modified Rational Storm 145 Calculations Modified Rational 146 Hydrograph Rational Pre - Development 143 Peak Flow Modified Rational Graph 144 Table of Contents Modified Rational Storm 145 Calculations Modified Rational 146 Hydrograph Subsection: User Notifications No user User Notifications? notifications generated. Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 2 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Modified Rational Grand Summary Modified Rational Method Q = CiA * Units Conversion; Where conversion = 43560 / (12 * 3600) Frequency Area Adjusted C Duration Intensity Flow (Peak) Flow Volume (years) (ft2) Coefficient (min) (in /h) (ft3 /s) (Allowable) (inflow) (ft3 /s) (ac -ft) 2 38,332.800 0.690 6.000 5.100 3.12 2.76 0.026 10 38,332.800 0.690 6.000 6.600 4.04 3.57 0.033 100 38,332.800 0.690 6.000 9.000 5.51 4.87 0.046 2 38,332.800 0.690 6.000 5.100 3.12 2.76 0.026 10 38,332.800 0.690 6.000 6.600 4.04 3.57 0.033 100 38,332.800 0.690 6.000 9.000 5.51 4.871 0.046 vowme (Storage) (ac -ft) 0.003 0.004 0.005 0.003 0.004 0.005 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 3 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Master Network Summary Catchments Summary Label Scenario Return Hydrograph Time to Peak Peak Flow Event Volume (min) (ft3 /s) (vears) (ac -ft) CM -1 Post - Development 2 2 0.026 6.000 3.12 Elevation year (ft) Development 2 0.026 CM -1 y a Development 2 2 0.026 6.000 3.12 CM -1 10 10 0.033 6.000 4.04 year PO-1 (OUT) Development 2 0.026 CM -1 Post-Development 10 10 0.033 6.000 4.04 year CM -1 Prrea- Development 100 100 0.046 6.000 5.51 ye PO-1 (IN) Development 2 0.026 CM -1 Post - Development 100 0.046 6.000 5.51 100 year Node Summary Label Scenario Return Hydrograph Time to Peak Peak Flow Event Volume (min) (ft3 /s) ( vears) (ac -ft) 0 -1 Post-Development 2 2 0.026 91000 1.90 Elevation year (ft) Development 2 0.026 0 -1 y a Development 2 2 0.026 6.000 3.12 0 -1 Pre - Development 10 10 0.033 6.000 4.04 year PO-1 (OUT) Development 2 0.026 0-1 -Development 10 10 0.033 9.000 2.45 year 0 -1 y a Development 100 100 0.046 6.000 5.51 PO-1 (IN) Development 2 0.026 0-1 Post - Development 100 0.046 9.000 3.41 100 year Pond Summary Label Scenario Return Hydrograph Time to Peak Peak Flow Event Volume (min) (ft3 /s) (years) (ac -ft) Maximum Maximum Water Pond Storage Surface (ac -ft) Elevation (ft) Development Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 4 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Post - PO-1 (IN) Development 2 0.026 6.000 3.12 (N /A) (N /A) 2 year Post - PO-1 (OUT) Development 2 0.026 9.000 1.90 100.30 0.011 2 year Pre - PO-1 (IN) Development 2 0.026 6.000 3.12 (N /A) (N /A) 2 year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 4 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Master Network Summary Pond Summary Label Scenario Return Hydrograph Time to Peak Peak Flow Maximum Maximum Event Volume (min) W/O Water Pond Storage (years) (ac -ft) Surface (ac -ft) Elevation (ft) Pre - PO-1 (OUT) Development 2 0.026 6.000 3.12 0.00 0.000 2 year Pre - PO-1 (IN) Development 10 0.033 6.000 4.04 (N /A) (N /A) 10 year Pre - PO-1 (OUT) Development 10 0.033 6.000 4.04 0.00 0.000 10 year Post - PO-1 (IN) Development 10 0.033 6.000 4.04 (N /A) (N /A) 10 year Post - PO-1 (OUT) Development 10 0.033 9.000 2.45 100.39 0.014 10 year Pre - PO-1 (IN) Development 100 0.046 6.000 5.51 (N /A) (N /A) 100 year Pre - PO-1 (OUT) Development 100 0.046 6.000 5.51 0.00 0.000 100 year Post - PO-1 (IN) Development 100 0.046 6.000 5.51 (N /A) (N /A) 100 year Post - PO-1 (OUT) Development 100 0.046 9.000 3.41 100.52 0.019 100 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 5 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: I -D -F Table Label: Albemarle I -D -F Curve Time Intensity (min) (in /h) 5.000 6.900 6.000 6.600 7.000 6.300 8.000 6.000 9.000 5.800 10.000 5.500 11.000 5.300 12.000 5.100 13.000 5.000 14.000 4.800 15.000 4.600 16.000 4.500 17.000 4.400 18.000 4.200 19.000 4.100 20.000 4.000 21.000 3.900 22.000 3.800 23.000 3.700 24.000 3.600 25.000 3.500 26.000 3.400 27.000 3.300 28.000 3.300 29.000 3.200 30.000 3.100 31.000 3.100 32.000 3.000 33.000 2.900 34.000 2.900 35.000 2.800 36.000 2.800 37.000 2.700 38.000 2.700 39.000 2.600 40.000 2.600 41.000 2.500 42.000 2.500 43.000 2.400 44.000 2.400 45.000 2.400 46.000 2.300 47.000 2.300 48.000 2.200 49.000 2.200 Return Event: 10 years Storm Event: Albemarle - 10 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 6 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: I -D -F Table Label: Albemarle I -D -F Curve Time Intensity (min) (in /h) 50.000 2.200 51.000 2.100 52.000 2.100 53.000 2.100 54.000 2.100 55.000 2.000 56.000 2.000 57.000 2.000 58.000 1.900 59.000 1.900 60.000 1.900 120.000 1.100 180.000 0.700 240.000 0.600 300.000 0.500 Return Event: 10 years Storm Event: Albemarle - 10 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 7 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: I -D -F Table Return Event: 10 years Label: Albemarle Storm Event: Albemarle - 10 Year I -D -F Curve Time Intensity 5.000 6.900 6.000 6.600 7.000 6.300 8.000 6.000 9.000 5.800 10.000 5.500 11.000 5.300 12.000 5.100 13.000 5.000 14.000 4.800 15.000 4.600 16.000 4.500 17.000 4.400 18.000 4.200 19.000 4.100 20.000 4.000 21.000 3.900 22.000 3.800 23.000 3.700 24.000 3.600 25.000 3.500 26.000 3.400 27.000 3.300 28.000 3.300 29.000 3.200 30.000 3.100 31.000 3.100 32.000 3.000 33.000 2.900 34.000 2.900 35.000 2.800 36.000 2.800 37.000 2.700 38.000 2.700 39.000 2.600 40.000 2.600 41.000 2.500 42.000 2.500 43.000 2.400 44.000 2.400 45.000 2.400 46.000 2.300 47.000 2.300 48.000 2.200 49.000 2.200 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 8 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: I -D -F Table Label: Albemarle I -D -F Curve Time Intensity (min) (in /h) 50.000 2.200 51.000 2.100 52.000 2.100 53.000 2.100 54.000 2.100 55.000 2.000 56.000 2.000 57.000 2.000 58.000 1.900 59.000 1.900 60.000 1.900 120.000 1.100 180.000 0.700 240.000 0.600 300.000 0.500 Return Event: 10 years Storm Event: Albemarle - 10 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 9 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: I -D -F Table Label: Albemarle I -D -F Curve Time Intensity (min) (in /h) 5.000 9.300 6.000 9.000 7.000 8.600 8.000 8.300 9.000 8.000 10.000 7.800 11.000 7.500 12.000 7.300 13.000 7.000 14.000 6.800 15.000 6.600 16.000 6.500 17.000 6.300 18.000 6.100 19.000 5.900 20.000 5.800 21.000 5.700 22.000 5.500 23.000 5.400 24.000 5.300 25.000 5.100 26.000 5.000 27.000 4.900 28.000 4.800 29.000 4.700 30.000 4.600 31.000 4.500 32.000 4.400 33.000 4.400 34.000 4.300 35.000 4.200 36.000 4.100 37.000 4.100 38.000 4.000 39.000 3.900 40.000 3.900 41.000 3.800 42.000 3.700 43.000 3.700 44.000 3.600 45.000 3.600 46.000 3.500 47.000 3.400 48.000 3.400 49.000 3.300 Return Event: 100 years Storm Event: Albemarle - 100 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 10 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: I -D -F Table Label: Albemarle I -D -F Curve Time Intensity (min) (in /h) 50.000 3.300 51.000 3.300 52.000 3.200 53.000 3.200 54.000 3.100 55.000 3.100 56.000 3.000 57.000 3.000 58.000 3.000 59.000 2.900 60.000 2.900 120.000 1.600 180.000 1.100 240.000 0.900 300.000 0.700 Return Event: 100 years Storm Event: Albemarle - 100 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofllter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 11 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: I -D -F Table Return Event: 100 years Label: Albemarle Storm Event: Albemarle - 100 Year I -D -F Curve Time Intensity (min) (in /h) 5.000 9.300 6.000 9.000 7.000 8.600 8.000 8.300 9.000 8.000 10.000 7.800 11.000 7.500 12.000 7.300 13.000 7.000 14.000 6.800 15.000 6.600 16.000 6.500 17.000 6.300 18.000 6.100 19.000 5.900 20.000 5.800 21.000 5.700 22.000 5.500 23.000 5.400 24.000 5.300 25.000 5.100 26.000 5.000 27.000 4.900 28.000 4.800 29.000 4.700 30.000 4.600 31.000 4.500 32.000 4.400 33.000 4.400 34.000 4.300 35.000 4.200 36.000 4.100 37.000 4.100 38.000 4.000 39.000 3.900 40.000 3.900 41.000 3.800 42.000 3.700 43.000 3.700 44.000 3.600 45.000 3.600 46.000 3.500 47.000 3.400 48.000 3.400 49.000 3.300 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 12 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: I -D -F Table Label: Albemarle I -D -F Curve Time Intensity (min) (in /h) 50.000 3.300 51.000 3.300 52.000 3.200 53.000 3.200 54.000 3.100 55.000 3.100 56.000 3.000 57.000 3.000 58.000 3.000 59.000 2.900 60.000 2.900 120.000 1.600 180.000 1.100' 240.000 0.900 300.000 0.700 Return Event: 100 years Storm Event: Albemarle - 100 Year Bentley Systems, Inc. Haestad Methods Solution Bentley Pond Pack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 13 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: I -D -F Table Label: Albemarle I -D -F Curve Time Intensity (min) (in /h) 5.000 5.400 6.000 5.100 7.000 4.800 8.000 4.600 9.000 4.300 10.000 4.100 11.000 3.900 12.000 3.800 13.000 3.600 14.000 3.400 15.000 3.300 16.000 3.200 17.000 3.100 18.000 3.000 19.000 2.900 20.000 2.800 21.000 2.700 22.000 2.600 23.000 2.500 24.000 2.400 25.000 2.400 26.000 2.300 27.000 2.200 28.000 2.200 29.000 2.100 30.000 2.100 31.000 2.000 32.000 2.000 33.000 1.900 34.000 1.900 35.000 1.900 36.000 1.800 37.000 1.800 38.000 1.700 39.000 1.700 40.000 1.700 41.000 1.600 42.000 1.600 43.000 1.600 44.000 1.500 45.000 1.500 46.000 1.500 47.000 1.500 48.000 1.400 49.000 1.400 Return Event: 2 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 14 of 153 Watertown, CT 06795 USA +1- 203 -755 -1666 Subsection: I -D -F Table Label: Albemarle I -D -F Curve Time Intensity (min) (in /h) 50.000 1.400 51.000 1.400 52.000 1.300 53.000 1.300 54.000 1.300 55.000 1.300 56.000 1.300 57.000 1.200 58.000 1.200 59.000 1.200 60.000 1.200 120.000 0.600 180.000 0.400 240.000 0.300 300.000 0.300 Return Event: 2 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 15 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: I -D -F Table Return Event: 2 years Label: Albemarle Storm Event: Albemarle - 2 Year I -D -F Curve Time Intensity 5.000 5.400 6.000 5.100 7.000 4.800 8.000 4.600 9.000 4.300 10.000 4.100 11.000 3.900 12.000 3.800 13.000 3.600 14.000 3.400 15.000 3.300 16.000 3.200 17.000 3.100 18.000 3.000 19.000 2.900 20.000 2.800 21.000 2.700 22.000 2.600 23.000 2.500 24.000 2.400 25.000 2.400 26.000 2.300 27.000 2.200 28.000 2.200 29.000 2.100 30.000 2.100 31.000 2.000 32.000 2.000 33.000 1.900 34.000 1.900 35.000 1.900 36.000 1.800 37.000 1.800 38.000 1.700 39.000 1.700 40.000 1.700 41.000 1.600 42.000 1.600 43.000 1.600 44.000 1.500 45.000 1.500 46.000 1.500 47.000 1.500 48.000 1.400 49.000 1.400 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/412010 27 Siemon Company Drive Suite 200 W Page 16 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: I -D -F Table Label: Albemarle I -D -F Curve Time Intensity (min) (in /h) 50.000 1.400 51.000 1.400 52.000 1.300 53.000 1.300 54.000 1.300 55.000 1.300 56.000 1.300 57.000 1.200 58.000 1.200 59.000 1.200 60.000 1.200' 120.000 0.600 180.000 0.400 240.000 0.300 300.000 0.300 Return Event: 2 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 17 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Time of Concentration Calculations (Pre - Development) Label: CM -1 Time of Concentration Results (Pre - Development) Segment #1: User Defined Tc Time of Concentration 6.000 min Time of Concentration (Composite) Time of Concentration 6.000 min (Composite) Return Event: 2 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center (08.11.01.511 2/4/2010 27 Siemon Company Drive Suite 200 W Page 18 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time of Concentration Calculations (Pre - Development) Label: CM -1 = = == User Defined Tc = Value entered by user Where: Tc= Time of concentration, hours Return Event: 2 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 19 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time of Concentration Calculations (Post - Development) Label: CM -1 Time of Concentration Results Segment #1: User Defined Tc Time of Concentration 6.000 min Time of Concentration (Composite) Time of Concentration (Composite) 6.000 min Return Event: 2 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 20 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Time of Concentration Calculations (Post - Development) Label: CM -1 = = == User Defined Tc = Value entered by user Where: Tc= Time of concentration, hours Return Event: 2 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center (08.11.01.511 2!4/2010 27 Siemon Company Drive Suite 200 W Page 21 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time of Concentration Calculations (Pre - Development) Label: CM -1 Time of Concentration Results (Pre - Development) Segment #1: User Defined Tc Time of Concentration 6.000 min Time of Concentration (Composite) Time of Concentration (Composite) 6.000 min Return Event: 2 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley Pond Pack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 22 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Time of Concentration Calculations (Pre - Development) Label: CM -1 = = == User Defined Tc = Value entered by user Where: Tc= Time of concentration, hours Return Event: 2 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 23 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time of Concentration Calculations (Post- Development) Return Event: 2 years Label: CM -1 Storm Event: Albemarle - 2 Year Time of Concentration Results Segment #1: User Defined Tc Time of Concentration 6.000 min Time of Concentration (Composite) Time of Concentration 6.000 min (Composite) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/412010 27 Siemon Company Drive Suite 200 W Page 24 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Time of Concentration Calculations (Post - Development) Label: CM -1 = = == User Defined Tc = Value entered by user Where: Tc= Time of concentration, hours Return Event: 2 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 25 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Time of Concentration Calculations (Pre - Development) Label: CM -1 Time of Concentration Results (Pre - Development) Segment #1: User Defined Tc Time of Concentration 6.000 min Time of Concentration (Composite) Time of Concentration 6.000 min (Composite) Return Event: 10 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 26 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time of Concentration Calculations (Pre - Development) Label: CM -1 = = == User Defined Tc = Value entered by user Where: Tc= Time of concentration, hours Return Event: 10 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 27 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Time of Concentration Calculations (Post - Development) Label: CM -1 Time of Concentration Results Segment #1: User Defined Tc Time of Concentration 6.000 min Time of Concentration (Composite) Time of Concentration (Composite) 6.000 min Return Event: 10 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 28 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time of Concentration Calculations (Post - Development) Label: CM -1 = = == User Defined Tc = Value entered by user Where: Tc= Time of concentration, hours Return Event: 10 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.511 2/4/2010 27 Siemon Company Drive Suite 200 W Page 29 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Time of Concentration Calculations (Pre - Development) Label: CM -1 Time of Concentration Results (Pre - Development) Segment #1: User Defined Tc Time of Concentration 6.000 min Time of Concentration (Composite) Time of Concentration (Composite) 6.000 min Return Event: 10 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.511 2/4/2010 27 Siemon Company Drive Suite 200 W Page 30 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time of Concentration Calculations (Pre - Development) Label: CM -1 = = == User Defined Tc = Value entered by user Where: Tc= Time of concentration, hours Return Event: 10 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 31 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time of Concentration Calculations (Post - Development) Label: CM -1 Time of Concentration Results Segment #1: User Defined Tc Time of Concentration 6.000 min Time of Concentration (Composite) Time of Concentration 6.000 min (Composite) Return Event: 10 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 32 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time of Concentration Calculations (Post - Development) Label: CM -1 = = == User Defined Tc = Value entered by user Where: Tc= Time of concentration, hours Return Event: 10 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 33 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time of Concentration Calculations (Pre - Development) Label: CM -1 Time of Concentration Results (Pre - Development) Segment #1: User Defined Tc Time of Concentration 6.000 min Time of Concentration (Composite) Time of Concentration (Composite) 6.000 min Return Event: 100 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley Pond Pack V8i Biofilter Routing.ppc Center [08.11.01.511 2/4/2010 27 Siemon Company Drive Suite 200 W Page 34 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time of Concentration Calculations (Pre - Development) Label: CM -1 = = == User Defined Tc = Value entered by user Where: Tc= Time of concentration, hours Return Event: 100 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley Pond Pack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 35 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time of Concentration Calculations (Post - Development) Label: CM -1 Time of Concentration Results Segment #1: User Defined Tc Time of Concentration 6.000 min Time of Concentration (Composite) Time of Concentration 6.000 min (Composite) Return Event: 100 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 36 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time of Concentration Calculations (Post - Development) Label: CM -1 = = == User Defined Tc = Value entered by user Where: Tc= Time of concentration, hours Return Event: 100 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.511 2/4/2010 27 Siemon Company Drive Suite 200 W Page 37 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time of Concentration Calculations (Pre - Development) Label: CM -1 Time of Concentration Results (Pre - Development) Segment #1: User Defined Tc Time of Concentration 6.000 min Time of Concentration (Composite) Time of Concentration 6.000 min (Composite) Return Event: 100 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.511 2/4/2010 27 Siemon Company Drive Suite 200 W Page 38 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Time of Concentration Calculations (Pre - Development) Label: CM -1 = = == User Defined Tc = Value entered by user Where: Tc= Time of concentration, hours Return Event: 100 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2!4(2010 27 Siemon Company Drive Suite 200 W Page 39 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Time of Concentration Calculations (Post - Development) Label: CM -1 Time of Concentration Results Segment #1: User Defined Tc Time of Concentration 6.000 min Time of Concentration (Composite) Time of Concentration 6.000 min (Composite) Return Event: 100 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.511 2/4/2010 27 Siemon Company Drive Suite 200 W Page 40 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time of Concentration Calculations (Post - Development) Label: CM -1 = = == User Defined Tc = Value entered by user Where: Tc= Time of concentration, hours Return Event: 100 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 41 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Addition Summary Label: 0 -1 Summary for Hydrograph Addition at'0-1' Upstream Link Upstream Node Outlet -1 PO -1 Node Inflows Inflow Type Element Volume Time to Peak (ac -ft) (min) Flow (From) Outlet -1 0.026 9.000 Flow (In) 0 -1 0.026 9.000 Flow (Peak) (ft3 /s) 1.90 1.90 Return Event: 2 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 42 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Addition Summary Label: 0 -1 Summary for Hydrograph Addition at'0-1' Upstream Link Upstream Node Outlet -1 PO -1 Node Inflows Inflow Type Element Volume Time to Peak (ac -ft) (min) Flow (From) Outlet -1 0.026 6.000 Flow (In) 0 -1 0.026 6.000 Flow (Peak) (ft3 /s) 3.12 3.12 Return Event: 2 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 43 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Addition Summary Label: 0 -1 Summary for Hydrograph Addition at'0-1' Upstream Link Upstream Node Outlet -1 PO -1 Node Inflows Inflow Type Element Volume Time to Peak (ac -ft) (min) Flow (From) Outlet -1 0.033 9.000 Flow (In) 0-1 0.033 9.000 Flow (Peak) (ft3 /s) 2.45 2.45 Return Event: 10 years Storm Event: Albemarle - 10 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 44 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Addition Summary Label: 0 -1 Summary for Hydrograph Addition at'0-1' Upstream Link Upstream Node Outlet -1 PO -1 Inflow Type Element Flow (From) Outlet -1 Flow (In) 0 -1 Node Inflows Volume Time to Peak (ac -ft) (min) 0.033 6.000 0.033 6.000 Flow (Peak) (ft3 /5) 4.04 4.04 Return Event: 10 years Storm Event: Albemarle - 10 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 45 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Addition Summary Label: 0 -1 Summary for Hydrograph Addition at'0-1' Upstream Link Upstream Node Outlet -1 PO -1 Node Inflows Inflow Type Element Volume Time to Peak (ac -ft) (min) Flow (From) Outlet -1 0.046 9.000 Flow (In) 0 -1 0.046 9.000 Return Event: 100 years Storm Event: Albemarle - 100 Year Flow (Peak) (ft3 /s) 3.41 3.41 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 46 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Addition Summary Label: 0 -1 Summary for Hydrograph Addition at 'O -1' Upstream Link Upstream Node Outlet -1 PO-1 Node Inflows Inflow Type Element Volume Time to Peak (ac -ft) (min) Flow (From) Outlet -1 0.046 6.000 Flow (In) 0 -1 0.046 6.000 Return Event: 100 years Storm Event: Albemarle - 100 Year Flow (Peak) (ft3 /s) 5.51 5.51 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4!2010 27 Siemon Company Drive Suite 200 W Page 47 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time vs. Elevation Return Event: 2 years Label: PO -1 (OUT) Storm Event: Albemarle - 2 Year Time vs. Elevation (ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) (ft) 0.000 100.00 100.06 100.22 100.30 100.21 15.000 100.10 100.05 100.02 100.01 100.01 30.000 100.00 100.00 100.00 100.00 100.00 45.000 100.00 100.00 100.00 100.00 100.00 60.000 100.00 100.00 100.00 100.00 100.00 75.000 100.00 100.00 100.00 100.00 100.00 90.000 100.00 100.00 100.00 100.00 100.00 105.000 100.00 100.00 100.00 100.00 100.00 120.000 100.00 100.00 100.00 100.00 100.00 135.000 100.00 100.00 100.00 100.00 100.00 150.000 100.00 100.00 100.00 100.00 100.00 165.000 100.00 100.00 100.00 100.00 100.00 180.000 100.00 100.00 100.00 100.00 100.00 195.000 100.00 100.00 100.00 100.00 100.00 210.000 100.00 100.00 100.00 100.00 100.00 225.000 100.00 100.00 100.00 100.00 100.00 240.000 100.00 100.00 100.00 100.00 100.00 255.000 100.00 100.00 100.00 100.00 100.00 270.000 100.00 100.00 100.00 100.00 100.00 285.000 100.00 100.00 100.00 100.00 100.00 300.000 100.00 100.00 100.00 100.00 100.00 315.000 100.00 100.00 100.00 100.00 100.00 330.000 100.00 100.00 100.00 100.00 100.00 345.000 100.00 100.00 100.00 100.00 100.00 360.000 100.00 100.00 100.00 100.00 100.00 375.000 100.00 100.00 100.00 100.00 100.00 390.000 100.00 100.00 100.00 100.00 100.00 405.000 100.00 100.00 100.00 100.00 100.00 420.000 100.00 100.00 100.00 100.00 100.00 435.000 100.00 100.00 100.00 100.00 100.00 450.000 100.00 100.00 100.00 100.00 100.00 465.000 100.00 100.00 100.00 100.00 100.00 480.000 100.00 100.00 100.00 100.00 100.00 495.000 100.00 100.00 100.00 100.00 100.00 510.000 100.00 100.00 100.00 100.00 100.00 525.000 100.00 100.00 100.00 100.00 100.00 540.000 100.00 100.00 100.00 100.00 100.00 555.000 100.00 100.00 100.00 100.00 100.00 570.000 100.00 100.00 100.00 100.00 100.00 585.000 100.00 100.00 100.00 100.00 100.00 600.000 100.00 100.00 100.00 100.00 100.00 615.000 100.00 100.00 100.00 100.00 100.00 630.000 100.00 100.00 100.00 100.00 100.00 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V& Biofilter Routing.ppc Center [08.11.01.51] 2/4!2010 27 Siemon Company Drive Suite 200 W Page 48 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time vs. Elevation Label: PO -1 (OUT) Time vs. Elevation (ft) Return Event: 2 years Storm Event: Albemarle - 2 Year Biofilter Routing.ppc Center 2/4/2010 27 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1- 203 - 755 -1666 Bentley Pond Pack V8i (08,11.01.51] Page 49 of 153 Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) (ft) 645.000 100.00 100.00 100.00 100.00 100.00 660.000 100.00 100.00 100.00 100.00 100.00 675.000 100.00 100.00 100.00 100.00 100.00 690.000 100.00 100.00 100.00 100.00 100.00 705.000 100.00 100.00 100.00 100.00 100.00 720.000 100.00 100.00 100.00 100.00 100.00 735.000 100.00 100.00 100.00 100.00 100.00 750.000 100.00 100.00 100.00 100.00 100.00 765.000 100.00 100.00 100.00 100.00 100.00 780.000 100.00 100.00 100.00 100.00 100.00 795.000 100.00 100.00 100.00 100.00 100.00 810.000 100.00 100.00 100.00 100.00 100.00 825.000 100.00 100.00 100.00 100.00 100.00 840.000 100.00 100.00 100.00 100.00 100.00 855.000 100.00 100.00 100.00 100.00 100.00 870.000 100.00 100.00 100.00 100.00 100.00 885.000 100.00 100.00 100.00 100.00 100.00 900.000 100.00 100.00 100.00 100.00 100.00 915.000 100.00 100.00 100.00 100.00 100.00 930.000 100.00 100.00 100.00 100.00 100.00 945.000 100.00 100.00 100.00 100.00 100.00 960.000 100.00 100.00 100.00 100.00 100.00 975.000 100.00 100.00 100.00 100.00 100.00 990.000 100.00 100.00 100.00 100.00 100.00 1,005.000 100.00 100.00 100.00 100.00 100.00 1,020.000 100.00 100.00 100.00 100.00 100.00 1,035.000 100.00 100.00 100.00 100.00 100.00 1,050.000 100.00 100.00 100.00 100.00 100.00 1,065.000 100.00 100.00 100.00 100.00 100.00 1,080.000 100.00 100.00 100.00 100.00 100.00 1,095.000 100.00 100.00 100.00 100.00 100.00 1,110.000 100.00 100.00 100.00 100.00 100.00 1,125.000 100.00 100.00 100.00 100.00 100.00 1,140.000 100.00 100.00 100.00 100.00 100.00 1,155.000 100.00 100.00 100.00 100.00 100.00 1,170.000 100.00 100.00 100.00 100.00 100.00 1,185.000 100.00 100.00 100.00 100.00 100.00 1,200.000 100.00 100.00 100.00 100.00 100.00 1,215.000 100.00 100.00 100.00 100.00 100.00 1,230.000 100.00 100.00 100.00 100.00 100.00 1,245.000 100.00 100.00 100.00 100.00 100.00 1,260.000 100.00 100.00 100.00 100.00 100.00 1,275.000 100.00 100.00 100.00 100.00 100.00 Bentley Systems, Inc. Haestad Methods Solution Biofilter Routing.ppc Center 2/4/2010 27 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1- 203 - 755 -1666 Bentley Pond Pack V8i (08,11.01.51] Page 49 of 153 Subsection: Time vs. Elevation Return Event: 2 years Label: PO -1 (OUT) Storm Event: Albemarle - 2 Year Time vs. Elevation (ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) (ft) 1,290.000 100.00 100.00 100.00 100.00 100.00 1,305.000 100.00 100.00 100.00 100.00 100.00 1,320.000 100.00 100.00 100.00 100.00 100.00 1,335.000 100.00 100.00 100.00 100.00 100.00 1,350.000 100.00 100.00 100.00 100.00 100.00 1,365.000 100.00 100.00 100.00 100.00 100.00 1,380.000 100.00 100.00 100.00 100.00 100.00 1,395.000 100.00 100.00 100.00 100.00 100.00 1,410.000 100.00 100.00 100.00 100.00 100.00 1,425.000 100.00 100.00 100.00 100.00 100.00 1,440.000 100.00 (N /A) (N /A) (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley Pond Pack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 50 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time vs. Elevation Return Event: 2 years Label: PO -1 (OUT) Storm Event: Albemarle - 2 Year Time vs. Elevation (ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) (ft) 0.000 0.00 0.00 0.00 0.00 0.00 15.000 0.00 0.00 0.00 0.00 0.00 30.000 0.00 0.00 0.00 0.00 0.00 45.000 0.00 0.00 0.00 0.00 0.00 60.000 0.00 0.00 0.00 0.00 0.00 75.000 0.00 0.00 0.00 0.00 0.00 90.000 0.00 0.00 0.00 0.00 0.00 105.000 0.00 0.00 0.00 0.00 0.00 120.000 0.00 0.00 0.00 0.00 0.00 135.000 0.00 0.00 0.00 0.00 0.00 150.000 0.00 0.00 0.00 0.00 0.00 165.000 0.00 0.00 0.00 0.00 0.00 180.000 0.00 0.00 0.00 0.00 0.00 195.000 0.00 0.00 0.00 0.00 0.00 210.000 0.00 0.00 0.00 0.00 0.00 225.000 0.00 0.00 0.00 0.00 0.00 240.000 0.00 0.00 0.00 0.00 0.00 255.000 0.00 0.00 0.00 0.00 0.00 270.000 0.00 0.00 0.00 0.00 0.00 285.000 0.00 0.00 0.00 0.00 0.00 300.000 0.00 0.00 0.00 0.00 0.00 315.000 0.00 0.00 0.00 0.00 0.00 330.000 0.00 0.00 0.00 0.00 0.00 345.000 0.00 0.00 0.00 0.00 0.00 360.000 0.00 0.00 0.00 0.00 0.00 375.000 0.00 0.00 0.00 0.00 0.00 390.000 0.00 0.00 0.00 0.00 0.00 405.000 0.00 0.00 0.00 0.00 0.00 420.000 0.00 0.00 0.00 0.00 0.00 435.000 0.00 0.00 0.00 0.00 0.00 450.000 0.00 0.00 0.00 0.00 0.00 465.000 0.00 0.00 0.00 0.00 0.00 480.000 0.00 0.00 0.00 0.00 0.00 495.000 0.00 0.00 0.00 0.00 0.00 510.000 0.00 0.00 0.00 0.00 0.00 525.000 0.00 0.00 0.00 0.00 0.00 540.000 0.00 0.00 0.00 0.00 0.00 555.000 0.00 0.00 0.00 0.00 0.00 570.000 0.00 0.00 0.00 0.00 0.00 585.000 0.00 0.00 0.00 0.00 0.00 600.000 0.00 0.00 0.00 0.00 0.00 615.000 0.00 0.00 0.00 0.00 0.00 630.000 0.00 0.00 0.00 0.00 0.00 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [0811.01.51] 2!4!2010 27 Siemon Company Drive Suite 200 W Page 51 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time vs. Elevation Return Event: 2 years Label: PO -1 (OUT) Storm Event: Albemarle - 2 Year Time vs. Elevation (ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) (ft) 645.000 0.00 0.00 0.00 0.00 0.00 660.000 0.00 0.00 0.00 0.00 0.00 675.000 0.00 0.00 0.00 0.00 0.00 690.000 0.00 0.00 0.00 0.00 0.00 705.000 0.00 0.00 0.00 0.00 0.00 720.000 0.00 0.00 0.00 0.00 0.00 735.000 0.00 0.00 0.00 0.00 0.00 750.000 0.00 0.00 0.00 0.00 0.00 765.000 0.00 0.00 0.00 0.00 0.00 780.000 0.00 0.00 0.00 0.00 0.00 795.000 0.00 0.00 0.00 0.00 0.00 810.000 0.00 0.00 0.00 0.00 0.00 825.000 0.00 0.00 0.00 0.00 0.00 840.000 0.00 0.00 0.00 0.00 0.00 855.000 0.00 0.00 0.00 0.00 0.00 870.000 0.00 0.00 0.00 0.00 0.00 885.000 0.00 0.00 0.00 0.00 0.00 900.000 0.00 0.00 0.00 0.00 0.00 915.000 0.00 0.00 0.00 0.00 0.00 930.000 0.00 0.00 0.00 0.00 0.00 945.000 0.00 0.00 0.00 0.00 0.00 960.000 0.00 0.00 0.00 0.00 0.00 975.000 0.00 0.00 0.00 0.00 0.00 990.000 0.00 0.00 0.00 0.00 0.00 1,005.000 0.00 0.00 0.00 0.00 0.00 1,020.000 0.00 0.00 0.00 0.00 0.00 1,035.000 0.00 0.00 0.00 0.00 0.00 1,050.000 0.00 0.00 0.00 0.00 0.00 1,065.000 0.00 0.00 0.00 0.00 0.00 1,080.000 0.00 0.00 0.00 0.00 0.00 1,095.000 0.00 0.00 0.00 0.00 0.00 1,110.000 0.00 0.00 0.00 0.00 0.00 1,125.000 0.00 0.00 0.00 0.00 0.00 1,140.000 0.00 0.00 0.00 0.00 0.00 1,155.000 0.00 0.00 0.00 0.00 0.00 1,170.000 0.00 0.00 0.00 0.00 0.00 1,185.000 0.00 0.00 0.00 0.00 0.00 1,200.000 0.00 0.00 0.00 0.00 0.00 1,215.000 0.00 0.00 0.00 0.00 0.00 1,230.000 0.00 0.00 0.00 0.00 0.00 1,245.000 0.00 0.00 0.00 0.00 0.00 1,260.000 0.00 0.00 0.00 0.00 0.00 1,275.000 0.00 0.00 0.00 0.00 0.00 Bentley Systems, Inc. Haestad Methods Solution Biofilter Routing.ppc Center 2/4/2010 27 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1 -203- 755 -1666 Bentley PondPack V8i [08.11.01.51] Page 52 of 153 Subsection: Time vs. Elevation Return Event: 2 years Label: PO -1 (OUT) Storm Event: Albemarle - 2 Year Time vs. Elevation (ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) (ft) 1,290.000 0.00 0.00 0.00 0.00 0.00 1,305.000 0.00 0.00 0.00 0.00 0.00 1,320.000 0.00 0.00 0.00 0.00 0.00 1,335.000 0.00 0.00 0.00 0.00 0.00 1,350.000 0.00 0.00 0.00 0.00 0.00 1,365.000 0.00 0.00 0.00 0.00 0.00 1,380.000 0.00 0.00 0.00 0.00 0.00 1,395.000 0.00 0.00 0.00 0.00 0.00 1,410.000 0.00 0.00 0.00 0.00 0.00 1,425.000 0.00 0.00 0.00 0.00 0.00 1,440.000 0.00 (N /A) (N /A) (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 53 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time vs. Elevation Return Event: 10 years Label: PO -1 (OUT) Storm Event: Albemarle - 10 Year Time vs. Elevation (ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) (ft) 0.000 100.00 100.08 100.29 100.39 100.27 15.000 100.13 100.06 100.03 100.01 100.01 30.000 100.00 100.00 100.00 100.00 100.00 45.000 100.00 100.00 100.00 100.00 100.00 60.000 100.00 100.00 100.00 100.00 100.00 75.000 100.00 100.00 100.00 100.00 100.00 90.000 100.00 100.00 100.00 100.00 100.00 105.000 100.00 100.00 100.00 100.00 100.00 120.000 100.00 100.00 100.00 100.00 100.00 135.000 100.00 100.00 100.00 100.00 100.00 150.000 100.00 100.00 100.00 100.00 100.00 165.000 100.00 100.00 100.00 100.00 100.00 180.000 100.00 100.00 100.00 100.00 100.00 195.000 100.00 100.00 100.00 100.00 100.00 210.000 100.00 100.00 100.00 100.00 100.00 225.000 100.00 100.00 100.00 100.00 100.00 240.000 100.00 100.00 100.00 100.00 100.00 255.000 100.00 100.00 100.00 100.00 100.00 270.000 100.00 100.00 100.00 100.00 100.00 285.000 100.00 100.00 100.00 100.00 100.00 300.000 100.00 100.00 100.00 100.00 100.00 315.000 100.00 100.00 100.00 100.00 100.00 330.000 100.00 100.00 100.00 100.00 100.00 345.000 100.00 100.00 100.00 100.00 100.00 360.000 100.00 100.00 100.00 100.00 100.00 375.000 100.00 100.00 100.00 100.00 100.00 390.000 100.00 100.00 100.00 100.00 100.00 405.000 100.00 100.00 100.00 100.00 100.00 420.000 100.00 100.00 100.00 100.00 100.00 435.000 100.00 100.00 100.00 100.00 100.00 450.000 100.00 100.00 100.00 100.00 100.00 465.000 100.00 100.00 100.00 100.00 100.00 480.000 100.00 100.00 100.00 100.00 100.00 495.000 100.00 100.00 100.00 100.00 100.00 510.000 100.00 100.00 100.00 100.00 100.00 525.000 100.00 100.00 100.00 100.00 100.00 540.000 100.00 100.00 100.00 100.00 100.00 555.000 100.00 100.00 100.00 100.00 100.00 570.000 100.00 100.00 100.00 100.00 100.00 585.000 100.00 100.00 100.00 100.00 100.00 600.000 100.00 100.00 100.00 100.00 100.00 615.000 100.00 100.00 100.00 100.00 100.00 630.000 100.00 100.00 100.00 100.00 100.00 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 54 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time vs. Elevation Label: PO -1 (OUT) Time vs. Elevation (ft) Return Event: 10 years Storm Event: Albemarle - 10 Year Biofilter Routing.ppc Center 2/4/2010 27 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1- 203 - 755 -1666 Bentley Pond Pack V8i [08.11.01.51] Page 55 of 153 Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) (ft) 645.000 100.00 100.00 100.00 100.00 100.00 660.000 100.00 100.00 100.00 100.00 100.00 675.000 100.00 100.00 100.00 100.00 100.00 690.000 100.00 100.00 100.00 100.00 100.00 705.000 100.00 100.00 100.00 100.00 100.00 720.000 100.00 100.00 100.00 100.00 100.00 735.000 100.00 100.00 100.00 100.00 100.00 750.000 100.00 100.00 100.00 100.00 100.00 765.000 100.00 100.00 100.00 100.00 100.00 780.000 100.00 100.00 100.00 100.00 100.00 795.000 100.00 100.00 100.00 100.00 100.00 810.000 100.00 100.00 100.00 100.00 100.00 825.000 100.00 100.00 100.00 100.00 100.00 840.000 100.00 100.00 100.00 100.00 100.00 855.000 100.00 100.00 100.00 100.00 100.00 870.000 100.00 100.00 100.00 100.00 100.00 885.000 100.00 100.00 100.00 100.00 100.00 900.000 100.00 100.00 100.00 100.00 100.00 915.000 100.00 100.00 100.00 100.00 100.00 930.000 100.00 100.00 100.00 100.00 100.00 945.000 100.00 100.00 100.00 100.00 100.00 960.000 100.00 100.00 100.00 100.00 100.00 975.000 100.00 100.00 100.00 100.00 100.00 990.000 100.00 100.00 100.00 100.00 100.00 1,005.000 100.00 100.00 100.00 100.00 100.00 1,020.000 100.00 100.00 100.00 100.00 100.00 1,035.000 100.00 100.00 100.00 100.00 100.00 1,050.000 100.00 100.00 100.00 100.00 100.00 1,065.000 100.00 100.00 100.00 100.00 100.00 1,080.000 100.00 100.00 100.00 100.00 100.00 1,095.000 100.00 100.00 100.00 100.00 100.00 1,110.000 100.00 100.00 100.00 100.00 100.00 1,125.000 100.00 100.00 100.00 100.00 100.00 1,140.000 100.00 100.00 100.00 100.00 100.00 1,155.000 100.00 100.00 100.00 100.00 100.00 1,170.000 100.00 100.00 100.00 100.00 100.00 1,185.000 100.00 100.00 100.00 100.00 100.00 1,200.000 100.00 100.00 100.00 100.00 100.00 1,215.000 100.00 100.00 100.00 100.00 100.00 1,230.000 100.00 100.00 100.00 100.00 100.00 1,245.000 100.00 100.00 100.00 100.00 100.00 1,260.000 100.00 100.00 100.00 100.00 100.00 1,275.000 100.00 100.00 100.00 100.00 100.00 Bentley Systems, Inc. Haestad Methods Solution Biofilter Routing.ppc Center 2/4/2010 27 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1- 203 - 755 -1666 Bentley Pond Pack V8i [08.11.01.51] Page 55 of 153 Subsection: Time vs. Elevation Return Event: 10 years Label: PO -1 (OUT) Storm Event: Albemarle - 10 Year Time vs. Elevation (ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) (ft) 1,290.000 100.00 100.00 100.00 100.00 100.00 1,305.000 100.00 100.00 100.00 100.00 100.00 1,320.000 100.00 100.00 100.00 100.00 100.00 1,335.000 100.00 100.00 100.00 100.00 100.00 1,350.000 100.00 100.00 100.00 100.00 100.00 1,365.000 100.00 100.00 100.00 100.00 100.00 1,380.000 100.00 100.00 100.00 100.00 100.00 1,395.000 100.00 100.00 100.00 100.00 100.00 1,410.000 100.00 100.00 100.00 100.00 100.00 1,425.000 100.00 100.00 100.00 100.00 100.00 1,440.000 100.00 (N /A) (N /A) (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 56 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time vs. Elevation Return Event: 10 years Label: PO -1 (OUT) Storm Event: Albemarle - 10 Year Time vs. Elevation (ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) (ft) 0.000 0.00 0.00 0.00 0.00 0.00 15.000 0.00 0.00 0.00 0.00 0.00 30.000 0.00 0.00 0.00 0.00 0.00 45.000 0.00 0.00 0.00 0.00 0.00 60.000 0.00 0.00 0.00 0.00 0.00 75.000 0.00 0.00 0.00 0.00 0.00 90.000 0.00 0.00 0.00 0.00 0.00 105.000 0.00 0.00 0.00 0.00 0.00 120.000 0.00 0.00 0.00 0.00 0.00 135.000 0.00 0.00 0.00 0.00 0.00 150.000 0.00 0.00 0.00 0.00 0.00 165.000 0.00 0.00 0.00 0.00 0.00 180.000 0.00 0.00 0.00 0.00 0.00 195.000 0.00 0.00 0.00 0.00 0.00 210.000 0.00 0.00 0.00 0.00 0.00 225.000 0.00 0.00 0.00 0.00 0.00 240.000 0.00 0.00 0.00 0.00 0.00 255.000 0.00 0.00 0.00 0.00 0.00 270.000 0.00 0.00 0.00 0.00 0.00 285.000 0.00 0100 0.00 0.00 0.00 300.000 0.00 0.00 0.00 0.00 0.00 315.000 0.00 0.00 0.00 0.00 0.00 330.000 0.00 0.00 0.00 0.00 0.00 345.000 0.00 0.00 0.00 0.00 0.00 360.000 0.00 0.00 0.00 0.00 0.00 375.000 0.00 0.00 0.00 0.00 0.00 390.000 0.00 0.00 0.00 0.00 0.00 405.000 0.00 0.00 0.00 0.00 0.00 420.000 0.00 0.00 0.00 0.00 0.00 435.000 0.00 0.00 0.00 0.00 0.00 450.000 0.00 0.00 0.00 0.00 0.00 465.000 0.00 0.00 0.00 0.00 0.00 480.000 0.00 0.00 0.00 0.00 0.00 495.000 0.00 0.00 0.00 0.00 0.00 510.000 0.00 0.00 0.00 0.00 0.00 525.000 0.00 0.00 0.00 0.00 0.00 540.000 0.00 0.00 0.00 0.00 0.00 555.000 0.00 0.00 0.00 0.00 0.00 570.000 0.00 0.00 0.00 0.00 0.00 585.000 0.00 0.00 0.00 0.00 0.00 600.000 0.00 0.00 0.00 0.00 0.00 615.000 0.00 0.00 0.00 0.00 0.00 630.000 0.00 0.00 0.00 0.00 0.00 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51 ] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 57 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Time vs. Elevation Return Event: 10 years Label: PO -1 (OUT) Storm Event: Albemarle - 10 Year Time vs. Elevation (ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) (ft) 645.000 0.00 0.00 0.00 0.00 0.00 660.000 0.00 0.00 0.00 0.00 0.00 675.000 0.00 0.00 0.00 0.00 0.00 690.000 0.00 0.00 0.00 0.00 0.00 705.000 0.00 0.00 0.00 0.00 0.00 720.000 0.00 0.00 0.00 0.00 0.00 735.000 0.00 0.00 0.00 0.00 0.00 750.000 0.00 0.00 0.00 0.00 0.00 765.000 0.00 0.00 0.00 0.00 0.00 780.000 0.00 0.00 0.00 0.00 0.00 795.000 0.00 0.00 0.00 0.00 0.00 810.000 0.00 0.00 0.00 0.00 0.00 825.000 0.00 0.00 0.00 0.00 0.00 840.000 0.00 0.00 0.00 0.00 0.00 855.000 0.00 0.00 0.00 0.00 0.00 870.000 0.00 0.00 0.00 0.00 0.00 885.000 0.00 0.00 0.00 0.00 0.00 900.000 0.00 0.00 0.00 0.00 0.00 915.000 0.00 0.00 0.00 0.00 0.00 930.000 0.00 0.00 0.00 0.00 0.00 945.000 0.00 0.00 0.00 0.00 0.00 960.000 0.00 0.00 0.00 0.00 0.00 975.000 0.00 0.00 0.00 0.00 0.00 990.000 0.00 0.00 0.00 0.00 0.00 1,005.000 0.00 0.00 0.00 0.00 0.00 1,020.000 0.00 0.00 0.00 0.00 0.00 1,035.000 0.00 0.00 0.00 0.00 0.00 1,050.000 0.00 0.00 0.00 0.00 0.00 1,065.000 0.00 0.00 0.00 0.00 0.00 1,080.000 0.00 0.00 0.00 0.00 0.00 1,095.000 0.00 0.00 0.00 0.00 0.00 1,110.000 0.00 0.00 0.00 0.00 0.00 1,125.000 0.00 0.00 0.00 0.00 0.00 1,140.000 0.00 0.00 0.00 0.00 0.00 1,155.000 0.00 0.00 0.00 0.00 0.00', 1,170.000 0.00 0.00 0.00 0.00 0.00 j 1,185.000 0.00 0.00 0.00 0.00 0.00 1,200.000 0.00 0.00 0.00 0.00 0.00 1,215.000 0.00 0.00 0.00 0.00 0.00 1,230.000 0.00 0.00 0.00 0.00 0.00 1,245.000 0.00 0.00 0.00 0.00 0.00 1,260.000 0.00 0.00 0.00 0.00 0.00 1,275.000 0.00 0.00 0.00 0.00 0.00 Bentley Systems, Inc. Haestad Methods Solution Biofilter Routing.ppc Center 2/4/2010 27 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1- 203 - 755 -1666 Bentley PondPack V8i (08.11.01.51] Page 58 of 153 Subsection: Time vs. Elevation Return Event: 10 years Label: PO -1 (OUT) Storm Event: Albemarle - 10 Year Time vs. Elevation (ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) (ft) 1,290.000 0.00 0.00 0.00 0.00 0.00 1,305.000 0.00 0.00 0.00 0.00 0.00 1,320.000 0.00 0.00 0.00 0.00 0.00 1,335.000 0.00 0.00 0.00 0.00 0.00 1,350.000 0.00 0.00 0.00 0.00 0.00 1,365.000 0.00 0.00 0.00 0.00 0.00 1,380.000 0.00 0.00 0.00 0.00 0.00 1,395.000 0.00 0.00 0.00 0.00 0.00 1,410.000 0.00 0.00 0.00 0.00 0.00 1,425.000 0.00 0.00 0.00 0.00 0.00 1,440.000 0.00 (N /A) (N /A) (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center P8.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 59 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time vs. Elevation Return Event: 100 years Label: PO -1 (OUT) Storm Event: Albemarle - 100 Year Time vs. Elevation (ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) (ft) 0.000 100.00 100.11 100.39 100.52 100.36 15.000 100.17 100.08 100.04 100.02 100.01 30.000 100.00 100.00 100.00 100.00 100.00 45.000 100.00 100.00 100.00 100.00 100.00 60.000 100.00 100.00 100.00 100.00 100.00 75.000 100.00 100.00 100.00 100.00 100.00 90.000 100.00 100.00 100.00 100.00 100.00 105.000 100.00 100.00 100.00 100.00 100.00 120.000 100.00 100.00 100.00 100.00 100.00 135.000 100.00 100.00 100.00 100.00 100.00 150.000 100.00 100.00 100.00 100.00 100.00 165.000 100.00 100.00 100.00 100.00 100.00 180.000 100.00 100.00 100.00 100.00 100.00 195.000 100.00 100.00 100.00 100.00 100.00 210.000 100.00 100.00 100.00 100.00 100.00 225.000 100.00 100.00 100.00 100.00 100.00 240.000 100.00 100.00 100.00 100.00 100.00 255.000 100.00 100.00 100.00 100.00 100.00 270.000 100.00 100.00 100.00 100.00 100.00 285.000 100.00 100.00 100.00 100.00 100.00 300.000 100.00 100.00 100.00 100.00 100.00 315.000 100.00 100.00 100.00 100.00 100.00 330.000 100.00 100.00 100.00 100.00 100.00 345.000 100.00 100.00 100.00 100.00 100.00 360.000 100.00 100.00 100.00 100.00 100.00 375.000 100.00 100.00 100.00 100.00 100.00 390.000 100.00 100.00 100.00 100.00 100.00 405.000 100.00 100.00 100.00 100.00 100.00 420.000 100.00 100.00 100.00 100.00 100.00 435.000 100.00 100.00 100.00 100.00 100.00 450.000 100.00 100.00 100.00 100.00 100.00 465.000 100.00 100.00 100.00 100.00 100.00 480.000 100.00 100.00 100.00 100.00 100.00 495.000 100.00 100.00 100.00 100.00 100.00 510.000 100.00 100.00 100.00 100.00 100.00 525.000 100.00 100.00 100.00 100.00 100.00 540.000 100.00 100.00 100.00 100.00 100.00 555.000 100.00 100.00 100.00 100.00 100.00 570.000 100.00 100.00 100.00 100.00 100.00 585.000 100.00 100.00 100.00 100.00 100.00 600.000 100.00 100.00 100.00 100.00 100.00 615.000 100.00 100.00 100.00 100.00 100.00 630.000 100.00 100.00 100.00 100.00 100.00 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/412010 27 Siemon Company Drive Suite 200 W Page 60 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time vs. Elevation Label: PO -1 (OUT) Time vs. Elevation (ft) Return Event: 100 years Storm Event: Albemarle - 100 Year Biofilter Routing.ppc Center 2/4/2010 27 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1- 203 - 755 -1666 Bentley PondPack V8i [08.11.01.51] Page 61 of 153 Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) (ft) 645.000 100.00 100.00 100.00 100.00 100.00 660.000 100.00 100.00 100.00 100.00 100.00 675.000 100.00 100.00 100.00 100.00 100.00 690.000 100.00 100.00 100.00 100.00 100.00 705.000 100.00 100.00 100.00 100.00 100.00 720.000 100.00 100.00 100.00 100.00 100.00 735.000 100.00 100.00 100.00 100.00 100.00 750.000 100.00 100.00 100.00 100.00 100.00 765.000 100.00 100.00 100.00 100.00 100.00 780.000 100.00 100.00 100.00 100.00 100.00 795.000 100.00 100.00 100.00 100.00 100.00 810.000 100.00 100.00 100.00 100.00 100.00 825.000 100.00 100.00 100.00 100.00 100.00 840.000 100.00 100.00 100.00 100.00 100.00 855.000 100.00 100.00 100.00 100.00 100.00 870.000 100.00 100.00 100.00 100.00 100.00 885.000 100.00 100.00 100.00 100.00 100.00 900.000 100.00 100.00 100.00 100.00 100.00 915.000 100.00 100.00 100.00 100.00 100.00 930.000 100.00 100.00 100.00 100.00 100.00 945.000 100.00 100.00 100.00 100.00 100.00 960.000 100.00 100.00 100.00 100.00 100.00 975.000 100.00 100.00 100.00 100.00 100.00 990.000 100.00 100.00 100.00 100.00 100.00 1,005.000 100.00 100.00 100.00 100.00 100.00 1,020.000 100.00 100.00 100.00 100.00 100.00 1,035.000 100.00 100.00 100.00 100.00 100.00 1,050.000 100.00 100.00 100.00 100.00 100.00 1,065.000 100.00 100.00 100.00 100.00 100.00 1,080.000 100.00 100.00 100.00 100.00 100.00 1,095.000 100.00 100.00 100.00 100.00 100.00 1,110.000 100.00 100.00 100.00 100.00 100.00 1,125.000 100.00 100.00 100.00 100.00 100.00 1,140.000 100.00 100.00 100.00 100.00 100.00 1,155.000 100.00 100.00 100.00 100.00 100.00 1,170.000 100.00 100.00 100.00 100.00 100.00 1,185.000 100.00 100.00 100.00 100.00 100.00 1,200.000 100.00 100.00 100.00 100.00 100.00 1,215.000 100.00 100.00 100.00 100.00 100.00 1,230.000 100.00 100.00 100.00 100.00 100.00 1,245.000 100.00 100.00 100.00 100.00 100.00 1,260.000 100.00 100.00 100.00 100.00 100.00 1,275.000 100.00 100.00 100.00 100.00 100.00 Bentley Systems, Inc. Haestad Methods Solution Biofilter Routing.ppc Center 2/4/2010 27 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1- 203 - 755 -1666 Bentley PondPack V8i [08.11.01.51] Page 61 of 153 Subsection: Time vs. Elevation Return Event: 100 years Label: PO -1 (OUT) Storm Event: Albemarle - 100 Year Time vs. Elevation (ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) (ft) 1,290.000 100.00 100.00 100.00 100.00 100.00 1,305.000 100.00 100.00 100.00 100.00 100.00 1,320.000 100.00 100.00 100.00 100.00 100.00 1,335.000 100.00 100.00 100.00 100.00 100.00 1,350.000 100.00 100.00 100.00 100.00 100.00 1,365.000 100.00 100.00 100.00 100.00 100.00 1,380.000 100.00 100.00 100.00 100.00 100.00 1,395.000 100.00 100.00 100.00 100.00 100.00 1,410.000 100.00 100.00 100.00 100.00 100.00 1,425.000 100.00 100.00 100.00 100.00 100.00 1,440.000 100.00 (N /A) (N /A) (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 62 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time vs. Elevation Return Event: 100 years Label: PO -1 (OUT) Storm Event: Albemarle - 100 Year Time vs. Elevation (ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) (ft) 0.000 0.00 0.00 0.00 0.00 0.00 15.000 0.00 0.00 0.00 0.00 0.00 30.000 0.00 0.00 0.00 0.00 0.00 45.000 0.00 0.00 0.00 0.00 0.00 60.000 0.00 0.00 0.00 0.00 0.00 75.000 0.00 0.00 0.00 0.00 0.00 90.000 0.00 0.00 0.00 0.00 0.00 105.000 0.00 0.00 0.00 0.00 0.00 120.000 0.00 0.00 0.00 0.00 0.00 135.000 0.00 0.00 0.00 0.00 0.00 150.000 0.00 0.00 0.00 0.00 0.00 165.000 0.00 0.00 0.00 0.00 0.00 180.000 0.00 0.00 0.00 0.00 0.00 195.000 0.00 0.00 0.00 0.00 0.00 210.000 0.00 0.00 0.00 0.00 0.00 225.000 0.00 0.00 0.00 0.00 0.00 240.000 0.00 0.00 0.00 0.00 0.00 255.000 0.00 0.00 0.00 0.00 0.00 270.000 0.00 0.00 0.00 0.00 0.00 285.000 0.00 0.00 0.00 0.00 0.00 300.000 0.00 0.00 0.00 0.00 0.00 315.000 0.00 0.00 0.00 0.00 0.00 330.000 0.00 0.00 0.00 0.00 0.00 345.000 0.00 0.00 0.00 0.00 0.00 360.000 0.00 0.00 0.00 0.00 0.00 375.000 0.00 0.00 0.00 0.00 0.00 390.000 0.00 0.00 0.00 0.00 0.00 405.000 0.00 0.00 0.00 0.00 0.00 420.000 0.00 0.00 0.00 0.00 0.00 435.000 0.00 0.00 0.00 0.00 0.00 450.000 0.00 0.00 0.00 0.00 0.00 465.000 0.00 0.00 0.00 0.00 0.00 480.000 0.00 0.00 0.00 0.00 0.00 495.000 0.00 0.00 0.00 0.00 0.00 510.000 0.00 0.00 0.00 0.00 0.00 525.000 0.00 0.00 0.00 0.00 0.00 540.000 0.00 0.00 0.00 0.00 0.00 555.000 0.00 0.00 0.00 0.00 0.00 570.000 0.00 0.00 0.00 0.00 0.00 585.000 0.00 0.00 0.00 0.00 0.00 600.000 0.00 0.00 0.00 0.00 0.00 615.000 0.00 0.00 0.00 0.00 0.00 630.000 0.00 0.00 0.00 0.00 0.00 Bentley Systems, Inc. Haestad Methods Solution Bentley Pond Pack V8i Biofilter Routing.ppc Center [08.11.01.51) 2/4/2010 27 Siemon Company Drive Suite 200 W Page 63 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time vs. Elevation Label: PO -1 (OUT) Time vs. Elevation (ft) Return Event: 100 years Storm Event: Albemarle - 100 Year Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) 645.000 0.00 0.00 0.00 0.00 660.000 0.00 0.00 0.00 0.00 675.000 0.00 0.00 0.00 0.00 690.000 0.00 0.00 0.00 0.00 705.000 0.00 0.00 0.00 0.00 720.000 0.00 0.00 0.00 0.00 735.000 0.00 0.00 0.00 0.00 750.000 0.00 0.00 0.00 0.00 765.000 0.00 0.00 0.00 0.00 780.000 0.00 0.00 0.00 0.00 795.000 0.00 0.00 0.00 0.00 810.000 0.00 0.00 0.00 0.00 825.000 0.00 0.00 0.00 0.00 840.000 0.00 0.00 0.00 0.00 855.000 0.00 0.00 0.00 0.00 870.000 0.00 0.00 0.00 0.00 885.000 0.00 0.00 0.00 0.00 900.000 0.00 0.00 0.00 0.00 915.000 0.00 0.00 0.00 0.00 930.000 0.00 0.00 0.00 0.00 945.000 0.00 0.00 0.00 0.00 960.000 0.00 0.00 0.00 0.00 975.000 0.00 0.00 0.00 0.00 990.000 0.00 0.00 0.00 0.00 1,005.000 0.00 0.00 0.00 0.00 1,020.000 0.00 0.00 0.00 0.00 1,035.000 0.00 0.00 0.00 0.00 1,050.000 0.00 0.00 0.00 0.00 1,065.000 0.00 0.00 0.00 0.00 1,080.000 0.00 0.00 0.00 0.00 1,095.000 0.00 0.00 0.00 0.00 1,110.000 0.00 0.00 0.00 0.00 1,125.000 0.00 0.00 0.00 0.00 1,140.000 0.00 0.00 0.00 0.00 1,155.000 0.00 0.00 0.00 0.00 1,170.000 0.00 0.00 0.00 0.00 1,185.000 0.00 0.00 0.00 0.00 1,200.000 0.00 0.00 0.00 0.00 1,215.000 0.00 0.00 0.00 0.00 1,230.000 0.00 0.00 0.00 0.00 1,245.000 0.00 0.00 0.00 0.00 1,260.000 0.00 0.00 0.00 0.00 1,275.000 0.00 0.00 0.00 0.00 Bentley Systems, Inc. Haestad Methods Solution Biofilter Routing.ppc Center 2!4!2010 27 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1- 203 - 755 -1666 Elevation (ft) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Bentley PondPack V8i [08.11.01.511 Page 64 of 153 Subsection: Time vs. Elevation Return Event: 100 years Label: PO -1 (OUT) Storm Event: Albemarle - 100 Year Time vs. Elevation (ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Elevation Elevation Elevation Elevation Elevation (min) (ft) (ft) (ft) (ft) (ft) 1,290.000 0.00 0.00 0.00 0.00 0.00 1,305.000 0.00 0.00 0.00 0.00 0.00 1,320.000 0.00 0.00 0.00 0.00 0.00 1,335.000 0.00 0.00 0.00 0.00 0.00 1,350.000 0.00 0.00 0.00 0.00 0.00 1,365.000 0100 0.00 0.00 0.00 0.00 1,380.000 0.00 0.00 0.00 0.00 0.00 1,395.000 0.00 0.00 0.00 0.00 0.00 1,410.000 0.00 0.00 0.00 0.00 0.00 1,425.000 0.00 0.00 0.00 0.00 0.00 1,440.000 0.00 (N /A) (N /A) (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 65 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time vs. Volume Return Event: 2 years Label: PO -1 Storm Event: Albemarle - 2 Year Time vs. Volume (ac -ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Volume Volume Volume Volume Volume (min) (ac -ft) (ac -ft) (ac -ft) (ac -ft) (ac -ft) 0.000 0.000 0.002 0.008 0.011 0.007 15.000 0.004 0.002 0.001 0.000 0.000 30.000 0.000 0.000 0.000 0.000 0.000 45.000 0.000 0.000 0.000 0.000 0.000 60.000 0.000 0.000 0.000 0.000 0.000 75.000 0.000 0.000 0.000 0.000 0.000 90.000 0.000 0.000 0.000 0.000 0.000 105.000 0.000 0.000 0.000 0.000 0.000 120.000 0.000 0.000 0.000 0.000 0.000 135.000 0.000 0.000 0.000 0.000 0.000 150.000 0.000 0.000 0.000 0.000 0.000 165.000 0.000 0.000 0.000 0.000 0.000 180.000 0.000 0.000 0.000 0.000 0.000 195.000 0.000 0.000 0.000 0.000 0.000 210.000 0.000 0.000 0.000 0.000 0.000 225.000 0.000 0.000 0.000 0.000 0.000 240.000 0.000 0.000 0.000 0.000 0.000 255.000 0.000 0.000 0.000 0.000 0.000 270.000 0.000 0.000 0.000 0.000 0.000 285.000 0.000 0.000 0.000 0.000 0.000 300.000 0.000 0.000 0.000 0.000 0.000 315.000 0.000 0.000 0.000 0.000 0.000 330.000 0.000 0.000 0.000 0.000 0.000 345.000 0.000 0.000 0.000 0.000 0.000 360.000 0.000 0.000 0.000 0.000 0.000 375.000 0.000 0.000 0.000 0.000 0.000 390.000 0.000 0.000 0.000 0.000 0.000 405.000 0.000 0.000 0.000 0.000 0.000 420.000 0.000 0.000 0.000 0.000 0.000 435.000 0.000 0.000 0.000 0.000 0.000 450.000 0.000 0.000 0.000 0.000 0.000 465.000 0.000 0.000 0.000 0.000 0.000 480.000 0.000 0.000 0.000 0.000 0.000 495.000 01000 0.000 0.000 0.000 0.000 510.000 0.000 0.000 0.000 0.000 0.000 525.000 0.000 0.000 0.000 0.000 0.000 540.000 0.000 0.000 0.000 0.000 0.000 555.000 0.000 0.000 0.000 0.000 0.000 570.000 0.000 0.000 0.000 0.000 0.000 585.000 0.000 0.000 0.000 0.000 0.000 600.000 0.000 0.000 0.000 0.000 0.000 615.000 0.000 0.000 0.000 0.000 0.000 630.000 0.000 0.000 0.000 0.000 0.000 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 66 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Time vs. Volume Label: PO -1 Time vs. Volume (ac -ft) Return Event: 2 years Storm Event: Albemarle - 2 Year Biofilter Routing.ppc Center 2/4/2010 27 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1- 203 - 755 -1666 Bentley PondPack V8i [08.11.01.51] Page 67 of 153 Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Volume Volume Volume Volume Volume (min) (ac -ft) (ac -ft) (ac -ft) (ac -ft) (ac -ft) 645.000 0.000 0.000 0.000 0.000 0.000 660.000 0.000 0.000 0.000 0.000 0.000 675.000 0.000 0.000 0.000 0.000 0.000 690.000 0.000 0.000 0.000 0.000 0.000 705.000 0.000 0.000 0.000 0.000 0.000 720.000 0.000 0.000 0.000 0.000 0.000 735.000 0.000 0.000 0.000 0.000 0.000 750.000 0.000 0.000 0.000 0.000 0.000 765.000 0.000 0.000 0.000 0.000 0.000 780.000 0.000 0.000 0.000 0.000 0.000 795.000 0.000 0.000 0.000 0.000 0.000 810.000 0.000 0.000 0.000 0.000 0.000 825.000 0.000 0.000 0.000 0.000 0.000 840.000 0.000 0.000 0.000 0.000 0.000 855.000 0.000 0.000 0.000 0.000 0.000 870.000 0.000 0.000 0.000 0.000 0.000 885.000 0.000 0.000 0.000 0.000 0.000 900.000 0.000 0.000 0.000 0.000 0.000 915.000 0.000 0.000 0.000 0.000 0.000 930.000 0.000 0.000 0.000 0.000 0.000 945.000 0.000 0.000 0.000 0.000 0.000 960.000 0.000 0.000 0.000 0.000 0.000 975.000 0.000 0.000 0.000 0.000 0.000 990.000 0.000 0.000 0.000 0.000 0.000 1,005.000 0.000 0.000 0.000 0.000 0.000 1,020.000 0.000 0.000 0.000 0.000 0.000 1,035.000 0.000 0.000 0.000 0.000 0.000 1,050.000 0.000 0.000 0.000 0.000 0.000 1,065.000 0.000 0.000 0.000 0.000 0.000 1,080.000 0.000 0.000 0.000 0.000 0.000 1,095.000 0.000 0.000 0.000 0.000 0.000 1,110.000 0.000 0.000 0.000 0.000 0.000 1,125.000 0.000 0.000 0.000 0.000 0.000 1,140.000 0.000 0.000 0.000 0.000 0.000 1,155.000 0.000 0.000 0.000 0.000 0.000 1,170.000 0.000 0.000 0.000 0.000 0.000 1,185.000 0.000 0.000 0.000 0.000 0.000 1,200.000 0.000 0.000 0.000 0.000 0.000 1,215.000 0.000 0.000 0.000 0.000 0.000. 1,230.000 0.000 0.000 0.000 0.000 0.000' 1,245.000 0.000 0.000 0.000 0.000 0.000 1,260.000 0.000 0.000 0.000 0.000 0.000 1,275.000 0.000 0.000 0.000 0.000 0.000 Bentley Systems, Inc. Haestad Methods Solution Biofilter Routing.ppc Center 2/4/2010 27 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1- 203 - 755 -1666 Bentley PondPack V8i [08.11.01.51] Page 67 of 153 Subsection: Time vs. Volume Return Event: 2 years Label: PO -1 Storm Event: Albemarle - 2 Year Time vs. Volume (ac -ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Volume Volume Volume Volume Volume (min) (ac -ft) (ac -ft) (ac -ft) (ac -ft) (ac -ft) 1,290.000 0.000 0.000 0.000 0.000 0.000 1,305.000 0.000 0.000 0.000 0.000 0.000 1,320.000 0.000 0.000 0.000 0.000 0.000 1,335.000 0.000 0.000 0.000 0.000 0.000 1,350.000 0.000 0.000 0.000 0.000 0.000 1,365.000 0.000 0.000 0.000 0.000 0.000 1,380.000 0.000 0.000 0.000 0.000 0.000 1,395.000 0.000 0.000 0.000 0.000 0.000 1,410.000 0.000 0.000 0.000 0.000 0.000 1,425.000 0.000 0.000 0.000 0.000 0.000 1,440.000 0.000 (N /A) I (N /A) (N /A) (N /A). Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 214/2010 27 Siemon Company Drive Suite 200 W Page 68 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time vs. Volume Return Event: 10 years Label: PO -1 Storm Event: Albemarle - 10 Year Time vs. Volume (ac -ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Volume Volume Volume Volume Volume (min) (ac -ft) (ac -ft) (ac -ft) (ac -ft) (ac -ft) 0.000 0.000 0.003 0.010 0.014 0.010 15.000 0.005 0.002 0.001 0.001 0.000 30.000 0.000 0.000 0.000 0.000 0.000 45.000 0.000 0.000 0.000 0.000 0.000 60.000 0.000 0.000 0.000 0.000 0.000 75.000 0.000 0.000 0.000 0.000 0.000 90.000 0.000 0.000 0.000 0.000 0.000 105.000 0.000 0.000 0.000 0.000 0.000 120.000 0.000 0.000 0.000 0.000 0.000 135.000 0.000 0.000 0.000 0.000 0.000 150.000 0.000 0.000 0.000 0.000 0.000 165.000 0.000 0.000 0.000 0.000 0.000 180.000 0.000 0.000 0.000 0.000 0.000 195.000 0.000 0.000 0.000 0.000 0.000 210.000 0.000 0.000 0.000 0.000 0.000 225.000 0.000 0.000 0.000 0.000 0.000 240.000 0.000 0.000 0.000 0.000 0.000 255.000 0.000 0.000 0.000 0.000 0.000 270.000 0.000 0.000 0.000 0.000 0.000 285.000 0.000 0.000 0.000 0.000 0.000 300.000 0.000 0.000 0.000 0.000 0.000 315.000 0.000 0.000 0.000 0.000 0.000 330.000 0.000 0.000 0.000 0.000 0.000 345.000 0.000 0.000 0.000 0.000 0.000 360.000 0.000 0.000 0.000 0.000 0.000 375.000 0.000 0.000 0.000 0.000 0.000 390.000 0.000 0.000 0.000 0.000 0.000 405.000 0.000 0.000 0.000 0.000 0.000 420.000 0.000 0.000 0.000 0.000 0.000 435.000 0.000 0.000 0.000 0.000 0.000 450.000 0.000 0.000 0.000 0.000 0.000 465.000 0.000 0.000 0.000 0.000 0.000 480.000 0.000 0.000 0.000 0.000 0.000 495.000 0.000 0.000 0.000 0.000 0.000 510.000 0.000 0.000 0.000 0.000 0.000 525.000 0.000 0.000 0.000 0.000 0.000 540.000 0.000 0.000 0.000 0.000 0.000 555.000 0.000 0.000 0.000 0.000 0.000 570.000 0.000 0.000 0.000 0.000 0.000 585.000 0.000 0.000 0.000 0.000 0.000 600.000 0.000 0.000 0.000 0.000 0.000 615.000 0.000 0.000 0.000 0.000 0.000 630.000 0.000 0.000 0.000 0.000 0.000 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 69 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time vs. Volume Label: PO -1 Time vs. Volume (ac -ft) Return Event: 10 years Storm Event: Albemarle - 10 Year Biofilter Routing.ppc Center 2/4/2010 27 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1- 203 - 755 -1666 Bentley PondPack V8i [08.11.01.51] Page 70 of 153 Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Volume Volume Volume Volume Volume (min) (ac -ft) (ac -ft) (ac -ft) (ac -ft) (ac -ft) 645.000 0.000 0.000 0.000 0.000 0.000 660.000 0.000 0.000 0.000 0.000 0.000 675.000 0.000 0.000 0.000 0.000 0.000 690.000 0.000 0.000 0.000 0.000 0.000 705.000 0.000 0.000 0.000 0.000 0.000 720.000 0.000 0.000 0.000 0.000 0.000 735.000 0.000 0.000 0.000 0.000 0.000 750.000 0.000 0.000 0.000 0.000 0.000 765.000 0.000 0.000 0.000 0.000 0.000 780.000 0.000 0.000 0.000 0.000 0.000 795.000 0.000 0.000 0.000 0.000 0.000 810.000 0.000 0.000 0.000 0.000 0.000 825.000 0.000 0.000 0.000 0.000 0.000 840.000 0.000 0.000 0.000 0.000 0.000 855.000 0.000 0.000 0.000 0.000 0.000 870.000 0.000 0.000 0.000 0.000 0.000 885.000 0.000 0.000 0.000 0.000 0.000 900.000 0.000 0.000 0.000 0.000 0.000 915.000 0.000 0.000 0.000 0.000 0.000 930.000 0.000 0.000 0.000 0.000 0.000 945.000 0.000 0.000 0.000 0.000 0.000 960.000 0.000 0.000 0.000 0.000 0.000 975.000 0.000 0.000 0.000 0.000 0.000 990.000 0.000 0.000 0.000 0.000 0.000 1,005.000 0.000 0.000 0.000 0.000 0.000 1,020.000 0.000 0.000 0.000 0.000 0.000 1,035.000 0.000 0.000 0.000 0.000 0.000 1,050.000 0.000 0.000 0.000 0.000 0.000 1,065.000 0.000 0.000 0.000 0.000 0.0001, 1,080.000 0.000 0.000 0.000 0.000 0.000 1,095.000 0.000 0.000 0.000 0.000 0.000 1,110.000 0.000 0.000 0.000 0.000 0.000 1,125.000 0.000 0.000 0.000 0.000 0.000 1,140.000 0.000 0.000 0.000 0.000 0.000 1,155.000 0.000 0.000 0.000 0.000 0.000 1,170.000 0.000 0.000 0.000 0.000 0.000 1,185.000 0.000 0.000 0.000 0.000 0.000 1,200.000 0.000 0.000 0.000 0.000 0.000 1,215.000 0.000 0.000 0.000 0.000 0.000 1,230.000 0.000 0.000 0.000 0.000 0.000 1,245.000 0.000 0.000 0.000 0.000 0.000 1,260.000 01000 0.000 0.000 0.000 0.000 1,275.000 0.000 0.000 0.000 0.000 0.000 Bentley Systems, Inc. Haestad Methods Solution Biofilter Routing.ppc Center 2/4/2010 27 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1- 203 - 755 -1666 Bentley PondPack V8i [08.11.01.51] Page 70 of 153 Subsection: Time vs. Volume Return Event: 10 years Label: PO -1 Storm Event: Albemarle - 10 Year Time vs. Volume (ac -ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Volume Volume Volume Volume Volume (min) (ac -ft) (ac -ft) (ac -ft) (ac -ft) (ac -ft) 1,290.000 0.000 0.000 0.000 0.000 0.000 1,305.000 0.000 0.000 0.000 0.000 0.000 1,320.000 0.000 0.000 0.000 0.000 0.000 1,335.000 0.000 0.000 0.000 0.000 0.000 1,350.000 0.000 0.000 0.000 0.000 0.000 1,365.000 0.000 0.000 0.000 0.000 0.000 1,380.000 0.000 0.000 0.000 0.000 0.000 1,395.000 0.000 0.000 0.000 0.000 0.000 1,410.000 0.000 0.000 0.000 0.000 0.000 1,425.000 0.000 0.000 0.000 0.000 0.000 1,440.000 0.000 (N /A) (N /A) (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 71 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time vs. Volume Return Event: 100 years Label: PO -1 Storm Event: Albemarle - 100 Year Time vs. Volume (ac -ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Volume Volume Volume Volume Volume (min) (ac -ft) (ac -ft) (ac -ft) (ac -ft) (ac -ft) 0.000 0.000 0.004 0.014 0.019 0.013 15.000 0.006 0.003 0.001 01001 0.000 30.000 0.000 0.000 0.000 0.000 0.000 45.000 0.000 0.000 0.000 0.000 0.000 60.000 0.000 0.000 0.000 0.000 0.000 75.000 0.000 0.000 0.000 0.000 0.000 90.000 0.000 0.000 0.000 0.000 0.000 105.000 0.000 0.000 0.000 0.000 0.000 120.000 0.000 0.000 0.000 0.000 0.000 135.000 0.000 0.000 0.000 0.000 0.000 150.000 0.000 0.000 0.000 0.000 0.000 165.000 0.000 0.000 0.000 0.000 0.000 180.000 0.000 0.000 0.000 0.000 0.000 195.000 0.000 0.000 0.000 0.000 0.000 210.000 0.000 0.000 0.000 0.000 0.000 225.000 0.000 0.000 0.000 0.000 0.000 240.000 0.000 0.000 0.000 0.000 0.000 255.000 0.000 0.000 0.000 0.000 0.000 270.000 0.000 0.000 0.000 0.000 0.000 285.000 0.000 0.000 0.000 0.000 0.000 300.000 0.000 0.000 0.000 0.000 0.000 315.000 0.000 0.000 0.000 0.000 0.000 330.000 0.000 0.000 0.000 01000 0.000 345.000 0.000 0.000 0.000 0.000 0.000 360.000 0.000 0.000 0.000 0.000 0.000 375.000 0.000 0.000 0.000 0.000 0.000 390.000 0.000 0.000 0.000 0.000 0.000 405.000 0.000 0.000 0.000 0.000 0.000 420.000 0.000 0.000 0.000 0.000 0.000 435.000 0.000 0.000 0.000 0.000 0.000 450.000 0.000 0.000 0.000 0.000 0.000 465.000 0.000 0.000 0.000 0.000 0.000 480.000 0.000 0.000 0.000 0.000 0.000 495.000 0.000 0.000 0.000 0.000 0.000 510.000 0.000 0.000 0.000 0.000 0.000 525.000 0.000 0.000 0.000 0.000 0.000 540.000 0.000 0.000 0.000 0.000 0.000 555.000 0.000 0.000 0.000 0.000 0.000 570.000 0.000 0.000 0.000 0.000 0.000 585.000 0.000 0.000 0.000 0.000 0.000 600.000 0.000 0.000 0.000 0.000 0.000 615.000 0.000 0.000 0.000 0.000 0.000 630.000 0.000 0.000 0.000 0.000 0.000 Bentley Systems, Inc. Haestad Methods Solution Bentley Pond Pack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 72 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Time vs. Volume Label: PO -1 Time vs. Volume (ac -ft) Return Event: 100 years Storm Event: Albemarle - 100 Year Biofilter Routing.ppc Center 2/4/2010 27 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1- 203 - 755 -1666 Bentley PondPack V8i [08.11.01.51] Page 73 of 153 Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Volume Volume Volume Volume Volume (min) (ac -ft) (ac -ft) (ac -ft) (ac -ft) (ac -ft) 645.000 0.000 0.000 0.000 0.000 0.000 660.000 0.000 0.000 0.000 0.000 0.000 675.000 0.000 0.000 0.000 0.000 0.000 690.000 0.000 0.000 0.000 0.000 0.000 705.000 0.000 0.000 0.000 0.000 0.000 720.000 0.000 0.000 0.000 0.000 0.000 735.000 0.000 0.000 0.000 0.000 0.000 750.000 0.000 0.000 0.000 0.000 0.000 765.000 0.000 0.000 0.000 0.000 0.000 780.000 0.000 0.000 0.000 0.000 0.000 795.000 0.000 0.000 0.000 0.000 0.000 810.000 0.000 0.000 0.000 0.000 0.000 825.000 0.000 0.000 0.000 0.000 0.000 840.000 0.000 0.000 0.000 0.000 0.000 855.000 0.000 0.000 0.000 0.000 0.000 870.000 0.000 0.000 0.000 0.000 0.000 885.000 0.000 0.000 0.000 0.000 0.000 900.000 0.000 0.000 0.000 0.000 0.000 915.000 0.000 0.000 0.000 0.000 0.000 930.000 0.000 0.000 0.000 0.000 0.000 945.000 0.000 0.000 0.000 0.000 0.000 960.000 0.000 0.000 0.000 0.000 0.000 975.000 0.000 0.000 0.000 0.000 0.000 990.000 0.000 0.000 0.000 0.000 0.000 1,005.000 0.000 0.000 0.000 0.000 0.000 1,020.000 0.000 0.000 0.000 0.000 0.000 1,035.000 0.000 0.000 0.000 0.000 0.000 1,050.000 0.000 0.000 0.000 0.000 0.000 1,065.000 0.000 0.000 0.000 0.000 0.000 1,080.000 0.000 0.000 0.000 0.000 0.000 1,095.000 0.000 0.000 0.000 0.000 0.000 1,110.000 0.000 0.000 0.000 0.000 0.000 1,125.000 0.000 0.000 0.000 0.000 0.000' 1,140.000 0.000 0.000 0.000 0.000 0.000 1,155.000 0.000 0.000 0.000 0.000 0.000 1,170.000 0.000 0.000 0.000 0.000 0.000 1,185.000 0.000 0.000 0.000 0.000 0.000 1,200.000 0.000 0.000 0.000 0.000 0.000 1,215.000 0.000 0.000 0.000 0.000 0.000 1,230.000 0.000 0.000 0.000 0.000 0.000 1,245.000 0.000 0.000 0.000 0.000 0.000 1,260.000 0.000 0.000 0.000 0.000 0.000 1,275.000 0.000 0.000 0.000 0.000 0.000 Bentley Systems, Inc. Haestad Methods Solution Biofilter Routing.ppc Center 2/4/2010 27 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1- 203 - 755 -1666 Bentley PondPack V8i [08.11.01.51] Page 73 of 153 Subsection: Time vs. Volume Return Event: 100 years Label: PO -1 Storm Event: Albemarle - 100 Year Time vs. Volume (ac -ft) Output Time increment = 3.000 min Time on left represents time for first value in each row. Time Volume Volume Volume Volume Volume (min) (ac -ft) (ac -ft) (ac -ft) (ac -ft) (ac -ft) 1,290.000 0.000 0.000 0.000 0.000 0.000 1,305.000 0.000 0.000 0.000 0.000 0.000 1,320.000 0.000 0.000 0.000 0.000 0.000 1,335.000 0.000 0.000 0.000 0.000 0.000 1,350.000 0.000 0.000 0.000 0.000 0.000 1,365.000 0.000 0.000 0.000 0,000 0.000 1,380.000 0.000 0.000 0.000 0.000 0.000 1,395.000 0.000 0.000 0.000 0.000 0.000 1,410.000 0.000 0.000 0.000 0.000 0.000 1,425.000 0.000 0.000 0.000 0.000 0.000 1,440.000 0.000 (N /A) (N /A) (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51) 2/4/2010 27 Siemon Company Drive Suite 200 W Page 74 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Elevation -Area Volume Curve Label: PO -1 Return Event: 2 years Storm Event: Albemarle - 2 Year Elevation Planimeter Area Al +A2 +sqr Volume Volume (Total) (ft) (ft2) (ft2) (Al *A2) (ac -ft) (ac -ft) (ft2) 100.00 0.0 1,516.000 0.000 0.000 0.000 101.00 0.0 1,995.000 5,250.086 0.040 0.040 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 75 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Volume Equations Label: PO -1 Return Event: 2 years Storm Event: Albemarle - 2 Year Pond Volume Equations * Incremental volume computed by the Conic Method for Reservoir Volumes. Volume = (1/3) * (EL2 - Ell) * (Areal + Area2 + sgr(Areal * Area2)) where: ELl, EL2 Lower and upper elevations of the increment Areal, Area2 Areas computed for ELl, EL2, respectively Volume Incremental volume between ELl and EL2 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 76 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Elevation -Area Volume Curve Label: PO -1 Return Event: 10 years Storm Event: Albemarle - 2 Year Elevation Planimeter Area Al +A2 +sqr Volume Volume (Total) (ft) (ft2) (ft2) (A1*A2) (ac -ft) (ac -ft) (ft2) 100.00 0.0 1,516.000 0.000 0.000 0.000 101.00 0.0 1,995.000 5,250.086 0.040 0.040 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 77 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Volume Equations Label: 130-1 Return Event: 10 years Storm Event: Albemarle - 2 Year Pond Volume Equations * Incremental volume computed by the Conic Method for Reservoir Volumes. Volume = (1/3) * (EL2 - Eli) * (Areal + Area2 + sgr(Areal * Area2)) where: ELI, EL2 Lower and upper elevations of the increment Areal, Area2 Areas computed for EL1, EL2, respectively Volume Incremental volume between EL1 and EL2 Bentley Systems, Inc. Haestad Methods Solution Bentley Pond Pack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 78 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Elevation -Area Volume Curve Label: PO -1 Return Event: 100 years Storm Event: Albemarle - 2 Year Elevation Planimeter Area Al +A2 +sqr Volume Volume (Total) (ft) (ft2) (ft2) (Al *A2) (ac -ft) (ac -ft) (ft2) 100.00 0.0 1,516.000 0.000 0.000 0.000 101.00 0.0 1,995.000 5,250.086 0.040 0.040 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/412010 27 Siemon Company Drive Suite 200 W Page 79 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Volume Equations Return Event: 100 years Label: PO -1 Storm Event: Albemarle - 2 Year Pond Volume Equations * Incremental volume computed by the Conic Method for Reservoir Volumes. Volume = (1/3) * (EL2 - Eli) * (Areal + Area2 + sgr(Areal * Area2)) where: ELl, EL2 Lower and upper elevations of the increment Areal, Area2 Areas computed for ELl, EL2, respectively Volume Incremental volume between ELI and EL2 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 80 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Outlet Input Data Label: Composite Outlet Structure - 1 Requested Pond Water Surface Elevations Minimum (Headwater) 100.00 ft Increment (Headwater) 0.50 ft Maximum (Headwater) 101.00 ft Return Event: 2 years Storm Event: Albemarle - 2 Year Outlet Connectivity Structure Type Outlet ID Direction Outfall El E2 (ft) (ft) Rectangular Weir I Weir - 1 Forward TW 100.00 101.00 Tailwater Settings I Tailwater I I 1 (N Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 214/2010 27 Siemon Company Drive Suite 200 W Page 81 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Outlet Input Data Label: Composite Outlet Structure - 1 Return Event: 2 years Storm Event: Albemarle - 2 Year Structure ID: Weir -1 Structure Type: Rectangular Weir Number of Openings 1 Elevation 100.00 ft Weir Length 3.00 ft Weir Coefficient 3.00 (ft ^0.5) /s Structure ID: TW Structure Type: TW Setup, DS Channel Tailwater Type Free Outfall Convergence Tolerances Maximum Iterations 30 Tailwater Tolerance (Minimum) 0.01 ft Tailwater Tolerance (Maximum) 0.50 ft Headwater Tolerance 0.01 ft (Minimum) Headwater Tolerance 0.50 ft (Maximum) Flow Tolerance (Minimum) 0.001 ft3 /s Flow Tolerance (Maximum) 10.000 ft3 /s Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 82 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Individual Outlet Curves Label: Composite Outlet Structure - 1 RATING TABLE FOR ONE OUTLET TYPE Structure ID = Weir - 1 (Rectangular Weir) Upstream ID = (Pond Water Surface) Downstream ID = Tailwater (Pond Outfall) Return Event: 2 years Storm Event: Albemarle - 2 Year Water Surface Flow Tailwater Elevation Convergence Error Elevation (ft3 /s) (ft) (ft) (ft) 100.00 0.00 (N /A) 0.00 100.50 3.18 (N /A) 0.00 101.00 9.00 (N /A) 0.00 Computation Messages H =.00; Htw =.00; Qfree =.00; H =.50; Htw =.00; Qfree =3.18; H =1.00; Htw =.00; Qfree =9.00; Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 214/2010 27 Siemon Company Drive Suite 200 W Page 83 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Composite Rating Curve Label: Composite Outlet Structure - Composite Outflow Summary Return Event: 2 years Storm Event: Albemarle - 2 Year Water Surface Flow Tailwater Elevation Convergence Error Elevation (ft3 /s) (ft) (ft) (ft) 100.00 0.00 (N /A) 0.00 100.50 3.18 (N /A) 0.00 101.00 9.00 (N /A) 0.00 Contributing Structures We - 1 Weir - 1 Weir - 1 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 84 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Outlet Input Data Label: Composite Outlet Structure - Requested Pond Water Surface Elevations Return Event: 10 years Storm Event: Albemarle - 2 Year Minimum (Headwater) 100.00 ft Increment (Headwater) 0.50 ft Maximum (Headwater) 101.00 ft Outlet Connectivity Structure Type Outlet ID Direction Outfall El E2 (ft) (ft) Rectangular Weir I Weir - 1 Forward TW 100.00 101.00 Tailwater Settings I Tailwater I I 1 (N Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack VSi Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 85 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Outlet Input Data Label: Composite Outlet Structure - 1 Return Event: 10 years Storm Event: Albemarle - 2 Year Structure ID: Weir -1 Structure Type: Rectangular Weir Number of Openings 1 Elevation 100.00 ft Weir Length 3.00 ft Weir Coefficient 3.00 (ft^0.5) /s Structure ID: TW Structure Type: TW Setup, DS Channel Tailwater Type Free Outfali Convergence Tolerances Maximum Iterations 30 Tailwater Tolerance (Minimum) 0.01 ft Tailwater Tolerance (Maximum) 0.50 ft Headwater Tolerance (Minimum) 0.01 ft Headwater Tolerance 0.50 ft (Maximum) Flow Tolerance (Minimum) 0.001 ft3 /s Flow Tolerance (Maximum) 10.000 ft3 /s Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 86 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Individual Outlet Curves Label: Composite Outlet Structure - 1 RATING TABLE FOR ONE OUTLET TYPE Structure ID = Weir - 1 (Rectangular Weir) Upstream ID = (Pond Water Surface) Downstream ID = Tailwater (Pond Outfall) Return Event: 10 years Storm Event: Albemarle - 2 Year Water Surface Flow Tailwater Elevation Convergence Error Elevation (ft3 /s) (ft) (ft) (ft) 100.00 0.00 (N /A) 0.00 100.50 3.18 (N /A) 0.00 101.00 9.00 (N /A) 0.00 Computation Messages H =.00; Htw =.00; Qfree =.00; H =.50; Htw =.00; Qfree =3.18; H =1.00; Htw =.00; Qfree =9.00; Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 214/2010 27 Siemon Company Drive Suite 200 W Page 87 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Composite Rating Curve Label: Composite Outlet Structure - 1 Composite Outflow Summary Return Event: 10 years Storm Event: Albemarle - 2 Year Water Surface Flow Tallwater Elevation Convergence Error Elevation (ft3 /s) (ft) (ft) (ft) 100.00 0.00 (N /A) 0.00 100.50 3.18 (N /A) 0.00 101.00 9.00 (N /A) 0.00 Contributing Structures Weir - 1 Weir - 1 Weir - 1 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 88 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Outlet Input Data Label: Composite Outlet Structure - Requested Pond Water Surface Elevations Minimum (Headwater) 100.00 ft Increment (Headwater) 0.50 ft Maximum (Headwater) 101.00 ft Return Event: 100 years Storm Event: Albemarle - 2 Year Outlet Connectivity Structure Type Outlet ID Direction Outfall El E2 ft Iftl Rectangular Weir Weir - 1 Forward TW 100.00 I 101.00 Tailwater Settings Tailwater I (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08-11.01.51] 2!412010 27 Siemon Company Drive Suite 200 W Page 89 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Outlet Input Data Label: Composite Outlet Structure - 1 Return Event: 100 years Storm Event: Albemarle - 2 Year Structure ID: Weir - 1 Structure Type: Rectangular Weir Number of Openings 1 Elevation 100.00 ft Weir Length 3.00 ft Weir Coefficient 3.00 (ft^0.5) /s Structure ID: TW Structure Type: TW Setup, DS Channel Tailwater Type Free Outfall Convergence Tolerances Maximum Iterations 30 Tailwater Tolerance (Minimum) 0.01 ft Tailwater Tolerance (Maximum) 0.50 ft Headwater Tolerance (Minimum) 0.01 ft Headwater Tolerance (Maximum) 0.50 ft Flow Tolerance (Minimum) 0.001 ft3 /s Flow Tolerance (Maximum) 10.000 ft3 /s Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 90 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Individual Outlet Curves Label: Composite Outlet Structure - 1 RATING TABLE FOR ONE OUTLET TYPE Structure ID = Weir - 1 (Rectangular Weir) Upstream ID = (Pond Water Surface) Downstream ID = Tailwater (Pond Outfall) Return Event: 100 years Storm Event: Albemarle - 2 Year Water Surface Flow Tailwater Elevation Convergence Error Elevation (ft3 /s) (ft) (ft) (ft) 100.00 0.00 (N /A) 0.00 100.50 3.18 (N /A) 0.00 101.00 9.00 (N /A) 0.00 Computation Messages H =.00; Htw =.00; Qfree =.00; H =.50; Htw =.00; Qfree =3.18; H =1.00; Htw =.00; Qfree =9.00; Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing•ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 91 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Composite Rating Curve Label: Composite Outlet Structure - 1 Composite Outflow Summary Return Event: 100 years Storm Event: Albemarle - 2 Year Water Surface Flow Tailwater Elevation Convergence Error Elevation (ft3 /s) (ft) (ft) (ft) 100.00 0.00 (N /A) 0.00 100.50 3.18 (N /A) 0.00 101.00 9.00 (N /A) 0.00 wntnounng Structures Weir - 1 Weir - 1 Weir - 1 Bentley Systems, Inc. Haestad Methods Solution Bentley Pond Pack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 92 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Diverted Hydrograph Return Event: 2 years Label: Outlet -1 Storm Event: Albemarle - 2 Year Peak Discharge 1.90 ft3 /S Time to Peak 9.000 min Hydrograph Volume 0.026 ac -ft HYDROGRAPH ORDINATES (ft3 /s) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /S) (ft3 /S) (ft3 /S) (ft3 /S) (ft3 /S) 0.0001 0.00 0.41 1.41 1.90 1.32 15.000 0.63 0.30 0.15 0.07 0.03 30.000 0.02 0.01 0.00 0.00 0.00 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51) 2/4/2010 27 Siemon Company Drive Suite 200 W Page 93 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Diverted Hydrograph Label: Outlet -1 Return Event: 2 years Storm Event: Albemarle - 2 Year Peak Discharge 3.12 ft3 /s Time to Peak 6.000 min Hydrograph Volume 0.026 ac -ft HYDROGRAPH ORDINATES (ft3 /s) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /s) (ft3 /s) (ft3 /s) (ft3 /s) (ft3 /s) 0.0001 0.001 1.561 3.121 1.561 0.00 Bentley Systems, Inc. Haestad Methods Solution Bentley Pond Pack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 94 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Diverted Hydrograph Label: Outlet -1 Return Event: 10 years Storm Event: Albemarle - 10 Year Peak Discharge 2.45 ft3 /S Time to Peak 9.000 min Hydrograph Volume 0.033 ac -ft HYDROGRAPH ORDINATES (ft3 /S) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /S) (ft3/S) (ft3/S) (ft3/S) (ft3 /C) 0.000 0.00 0.53 1.83 2.45 1.70 15.000 0.82 0.39 0.19 0.09 0.04 30.000 0.02 0.01 0.00 0.00 0.00 45.000 0.00 (N /A) (N /A) (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 95 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Diverted Hydrograph Label: Outlet -1 Return Event: 10 years Storm Event: Albemarle - 10 Year HYDROGRAPH ORDINATES (ft3 /s) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /S) (ft3 /s) (ft3 /s) (ft3 /s) (ft3 /s) 0.0001 0.001 2.021 4.04 2.02 0.00 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 96 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Peak Discharge Time to Peak Hydrograph Volume 4.04 ft3 /S 6.000 min 0.033 ac -ft HYDROGRAPH ORDINATES (ft3 /s) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /S) (ft3 /s) (ft3 /s) (ft3 /s) (ft3 /s) 0.0001 0.001 2.021 4.04 2.02 0.00 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 96 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Diverted Hydrograph Label: Outlet -1 Return Event: 100 years Storm Event: Albemarle - 100 Year Peak Discharge 3.41 ft3 /s Time to Peak 9.000 min Hydrograph Volume 0.046 ac -ft HYDROGRAPH ORDINATES (ft3 /s) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /4;) fff3 /6 f4F3 1o11 .aa,_. 0.000 0.00 0.72 - - 2.49 .•- �� 3.41 �� iii 2.29 15.000 1.10 0.53 0.25 0.12 0.06 30.000 0.03 0.01 0.01 0.00 0.00 45.000 0.00 (N /A) (N /A) (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 97 of 153 Watertown, CT 06795 USA +1 -203 -755 -1666 Subsection: Diverted Hydrograph Label: Outlet -1 Return Event: 100 years Storm Event: Albemarle - 100 Year Peak Discharge 5.51 ft3 /s Time to Peak 6.000 min Hydrograph Volume 0.046 ac -ft HYDROGRAPH ORDINATES (ft3 /s) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /s) (ft3 /s) (ft3 /s) (ft3 /g) (ft3 /5) 0.0001 0.001 2.761 5.511 2.761 0.00 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 98 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Elevation - Volume -Flow Table (Pond) Label: PO -1 Infiltration 0.00 Infiltration Method 1,516.000 (Computed) No Infiltration 0.00 100.50 Initial Conditions 0.019 Elevation (Water Surface, Initial) 100.00 ft Volume (Initial) 0.000 ac -ft Flow (Initial Outlet) 0.00 ft3 /S Flow (Initial Infiltration) 0.00 ft3 /S Flow (Initial, Total) 0.00 ft3 /S Time Increment 3.000 min Elevation Outflow Storage Area (ft) (ft3 /s) lac -ft) (ft2) Return Event: 2 years Storm Event: Albemarle - 2 Year Infiltration Flow (Total) 2S /t + 0 (f}3 /c) (f}3 /c) (ft3 /e1 100.00 0.00 0.000 1,516.000 0.00 0.00 0.00 100.50 3.18 0.019 1,747.293 0.00 3.18 12.24 101.00 9.00 0.040 1,995.000 0.00 9.00 28.44 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 99 of 153 Watertown, CT 06795 USA +1- 203 -755 -1666 Subsection: Level Pool Pond Routing Summary Label: PO -1 (IN) Infiltration Infiltration Method (Computed) No Infiltration Initial Conditions Elevation (Water Surface, 0.000 ac -ft Initial) 1 00.00 ft Volume (Initial) 0.000 ac -ft Flow (Initial Outlet) 0.00 ft3 /s Flow (Initial Infiltration) 0.00 ft3 /s Flow (Initial, Total) 0.00 ft3 /s Time Increment 3.000 min Return Event: 2 years Storm Event: Albemarle - 2 Year Inflow /Outflow Hydrograph Summary Flow (Peak In) 3.12 ft3 /s Time to Peak (Flow, In) 6.000 min Flow (Peak Outlet) 1.90 ft3 /s Time to Peak (Flow, Outlet) 9.000 min Elevation (Water Surface, Peak) 100.30 ft Volume (Peak) 0.011 ac -ft Mass Balance (ac -ft) Volume (Initial) 0.000 ac -ft Volume (Total Inflow) 0.026 ac -ft Volume (Total Infiltration) 0.000 ac -ft Volume (Total Outlet Outflow) 0.026 ac -ft Volume (Retained) 0.000 ac -ft Volume (Unrouted) 0.000 ac -ft Error (Mass Balance) 0.0% Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 100 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Level Pool Pond Routing Summary Label: PO -1 (IN) Infiltration 100.39 ft Infiltration Method No Infiltration (Computed) 0.014 ac -ft Initial Conditions Elevation (Water Surface, 100.00 ft Initial) 0.033 ac -ft Volume (Initial) 0.000 ac -ft Flow (Initial Outlet) 0.00 ft3 /s Flow (Initial Infiltration) 0.00 ft3 /s Flow (Initial, Total) 0.00 ft3 /s Time Increment 3.000 min Inflow /Outflow Hydrograph Summary Return Event: 10 years Storm Event: Albemarle - 10 Year Flow (Peak In) 4.04 ft3 /s Time to Peak (Flow, In) 6.000 min Flow (Peak Outlet) 2.45 ft3 /s Time to Peak (Flow, Outlet) 9.000 min Elevation (Water Surface, 100.39 ft Peak) Volume (Peak) 0.014 ac -ft Mass Balance (ac -ft) Volume (Initial) 0.000 ac -ft Volume (Total Inflow) 0.033 ac -ft Volume (Total Infiltration) 0.000 ac -ft Volume (Total Outlet Outflow) 0.033 ac -ft Volume (Retained) 0.000 ac -ft Volume (Unrouted) 0.000 ac -ft Error (Mass Balance) 0.0% Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.511 2/4/2010 27 Siemon Company Drive Suite 200 W Page 101 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Level Pool Pond Routing Summary Label: PO -1 (IN) Return Event: 100 years Storm Event: Albemarle - 100 Year Infiltration Infiltration Method (Computed) No Infiltration Initial Conditions Elevation (Water Surface, Initial) 100.00 ft Volume (Initial) 0.000 ac -ft Flow (Initial Outlet) 0.00 ft3 /s Flow (Initial Infiltration) 0.00 ft3 /s Flow (Initial, Total) 0.00 ft3 /s Time Increment 3.000 min Inflow /Outflow Hydrograph Summary Flow (Peak In) 5.51 ft3 /s Time to Peak (Flow, In) 6.000 min Flow (Peak Outlet) 3.41 ft3 /s Time to Peak (Flow, Outlet) 9.000 min Elevation (Water Surface, Peak) 100.52 ft Volume (Peak) 0.019 ac -ft Mass Balance (ac -ft) Volume (Initial) 0.000 ac -ft Volume (Total Inflow) 0.046 ac -ft Volume (Total Infiltration) 0.000 ac -ft Volume (Total Outlet Outflow) 0.046 ac -ft Volume (Retained) 0.000 ac -ft Volume (Unrouted) 0.000 ac -ft Error (Mass Balance) 0.0% Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 102 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Pond Routed Hydrograph (total out) Label: PO -1 (OUT) Return Event: 2 years Storm Event: Albemarle - 2 Year Peak Discharge 1.90 ft3 /s Time to Peak 9.000 min Hydrograph Volume 0.026 ac -ft HYDROGRAPH ORDINATES (ft3 /s) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /S) (ft3 /S) (ft3/5) (ft3 /Sl (R3 /c) 0.000 0.00 0.41 1.41 1.90 1.32 15.000 0.63 0.30 0.15 0.07 0.03 30.000 0.02 0.01 0.00 0.00 0.00 Bentley Systems, Inc. Haestad Methods Solution Bentley Pond Pack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 103 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Pond Routed Hydrograph (total out) Label: PO -1 (OUT) Return Event: 2 years Storm Event: Albemarle - 2 Year Peak Discharge 3.12 ft3 /s Time to Peak 6.000 min Hydrograph Volume 0.026 ac -ft HYDROGRAPH ORDINATES (ft3 /s) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /S) (ft3 /S) (ft3 /S) (ft3 /S) (ft3 /S) 0.0001 0.001 1.561 3,121 1.561 0.00 Bentley Systems, Inc. Haestad Methods Solution Bentley Pond Pack V8i Biofilter Routing.ppc Center 108.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 104 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Pond Routed Hydrograph (total out) Label: PO -1 (OUT) Return Event: 10 years Storm Event: Albemarle - 10 Year Peak Discharge 2.45 ft3 /s Time to Peak 9.000 min Hydrograph Volume 0.033 ac -ft HYDROGRAPH ORDINATES (ft3 /s) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3/S) (ft3 /S) MYS) (ft3/S) (113/S) 0.000 0.00 0.53 1.83 2.45 1.70 15.000 0.82 0.39 0.19 0.09 0.04 30.000 0.02 0.01 0.00 0.00 0.00 45.000 0.00 (N /A) (N /A) (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 105 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Pond Routed Hydrograph (total out) Label: PO -1 (OUT) Return Event: 10 years Storm Event: Albemarle - 10 Year HYDROGRAPH ORDINATES (ft3 /s) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /S) (ft3 /S) (ft3 /S) (ft3 /S) (f{3 /S) 0.0001 0.001 2.021 4.041 2.02 1 0.00 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 106 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Peak Discharge Time to Peak Hydrograph Volume 4.04 ft3 /s 6.000 min 0.033 ac -ft HYDROGRAPH ORDINATES (ft3 /s) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /S) (ft3 /S) (ft3 /S) (ft3 /S) (f{3 /S) 0.0001 0.001 2.021 4.041 2.02 1 0.00 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 106 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Pond Routed Hydrograph (total out) Label: PO- 1(OUT) Return Event: 100 years Storm Event: Albemarle - 100 Year Peak Discharge 3.41 ft3 /s Time to Peak 9.000 min Hydrograph Volume 0.046 ac -ft HYDROGRAPH ORDINATES (ft3 /S) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /S) (ft3 /s) (ft3 /s) (ft3 /s) (ft3 /s) 0.000 0.00 0.72 2.49 3.41 2.29 15.000 1.10 0.53 0.25 0.12 0.06 30.000 0.03 0.01 0.01 0.00 0.00 45.000 0.00 (N /A) (N /A) (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofllter Routing. ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 107 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Pond Routed Hydrograph (total out) Label: PO -1 (OUT) Return Event: 100 years Storm Event: Albemarle - 100 Year Peak Discharge 5.51 ft3 /s Time to Peak 6.000 min Hydrograph Volume 0.046 ac -ft HYDROGRAPH ORDINATES (ft3 /s) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /s) (ft3 /s) (ft3 /s) (ft3 /s) (ft3 /s) 0.0001 0.001 2.761 5.511 2.761 0.00 Bentley Systems, Inc. Haestad Methods Solution Bentley Pond Pack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 108 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Pond Inflow Summary Label: PO -1 (IN) Summary for Hydrograph Addition at'PO -1' Upstream Link Upstream Node <Catchment to Outflow Node> CM -1 Node Inflows Inflow Type Element Volume Time to Peak Flow (Peak) (ac -ft) (min) (ft3 /s) Flow (From) CM -1 0.026 6.000 3.12 Flow (In) PO -1 0.026 6.000 3.12 Return Event: 2 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 109 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Pond Inflow Summary Label: PO -1 (IN) Summary for Hydrograph Addition at'PO -1' Upstream Link Upstream Node <Catchment to Outflow Node> CM -1 Node Inflows Inflow Type Element Volume Time to Peak Flow (Peak) (ac -ft) (min) (ft3 /s) Flow (From) CM -1 0.026 6.000 3.12 Flow (In) PO -1 0.026 6.000 3.12 Return Event: 2 years Storm Event: Albemarle - 2 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51) 2/4/2010 27 Siemon Company Drive Suite 200 W Page 110 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Pond Inflow Summary Label: PO -1 (IN) Summary for Hydrograph Addition at'PO -1' Upstream Link Upstream Node <Catchment to Outflow Node> CM -1 Node Inflows Inflow Type Element Volume Time to Peak Flow (Peak) (ac -ft) (min) (ft3 /s) Flow (From) CM -1 0.033 6.000 4.04 Flow (In) PO -1 0.033 6.000 4.04 Return Event: 10 years Storm Event: Albemarle - 10 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 111 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Pond Inflow Summary Label: PO -1 (IN) Summary for Hydrograph Addition at'PO -1' Upstream Link Upstream Node <Catchment to Outflow Node> CM -1 Node Inflows Inflow Type Element Volume Time to Peak Flow (Peak) (ac -ft) (min) W /S) Flow (From) CM -1 0.033 6.000 4.04 Flow (In) PO -1 0.033 6.000 4.04 Return Event: 10 years Storm Event: Albemarle - 10 Year Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 112 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Pond Inflow Summary Label: PO -1 (IN) Return Event: 100 years Storm Event: Albemarle - 100 Year Summary for Hydrograph Addition at'PO -1' Upstream Link Upstream Node <Catchment to Outflow Node> CM -1 Node Inflows Inflow Type Element Volume Time to Peak Flow (Peak) (ac -ft) (min) (ft3 /s) Flow (From) CM -1 0.046 6.000 5.51 Flow (In) PO -1 0.046 6.000 5.51 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 113 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Pond Inflow Summary Label: PO -1 (IN) Return Event: 100 years Storm Event: Albemarle - 100 Year Summary for Hydrograph Addition at'PO -1' Upstream Link Upstream Node <Catchment to Outflow Node> CM -1 Node Inflows Inflow Type Element Volume Time to Peak Flow (Peak) (ac -ft) (min) (ft3 /s) Flow (From) CM -1 0.046 6.000 5.51 Flow (In) PO -1 0.046 6.000 5.51 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 114 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: C and Area (Pre - Development) Label: CM -1 Soil /Surface Description pre Weighted C & Total Area - - -> C and Area Results (Pre - Development) Return Event: 2 years Storm Event: Albemarle - 2 Year C Coefficient Area Area (Adjusted) (ft2) (ftz) 0.610 38,332.800 (N /A) 0.610 38,332.800 23,383.008 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 115 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: C and Area (Post - Development) Return Event: 2 years Label: CM -1 Storm Event: Albemarle - 2 Year Soil /Surface Description post Weighted C & Total Area - - -> C and Area Results C Coefficient 0.690 0.690 Area (ftz) 38,332.800 38,332.800 Area (Adjusted) (ftz) (N /A) 26,449.632 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 116 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: C and Area (Pre - Development) Return Event: 2 years Label: CM -1 Storm Event: Albemarle - 2 Year C and Area Results (Pre - Development) Soil /Surface Description C Coefficient Area (ft2) pre 0.610 38,332.800 Weighted C & Total Area - - -> 0.610 38,332.800 Area (Adjusted) (ft2) (N /A) 23,383.008 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 117 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: C and Area (Post - Development) Label: CM -1 Soil /Surface Description post Weighted C & Total Area - - -> C and Area Results C Coefficient 0.690 0.690 Return Event: 2 years Storm Event: Albemarle - 2 Year Area (ft2) 38,332.800 38,332.800 Area (Adjusted) (ft2) (N /A) 26,449.632 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack Viii Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 118 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Rational Pre - Development Peak Flow Return Event: 2 years Label: CM -1 Storm Event: Albemarle - 2 Year Summary of Rational Method Peak Discharges - -- Pre- Development Conditions - -- Q = CIA * Unit Conversion; Where Conversion = 43560 / (12 * 3600) Frequency C Coefficient C Adjustment C Coefficient Intensity Area Flow (Peak) (years) Factor (Final) (in /h) (ft2) (ft3 /s) 2 0.610 1.000 0.610 5.100 38,332.800 2.76 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 119 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Modified Rational Graph Label: CM -1 Method Type Method T Time of Duration (Modified 6.000 min Rational, Critical) FlatV Return Event: 2 years Storm Event: Albemarle - 2 Year Time Ill [2] - - Time of Concentration 6.000 min Time of Duration (Modified 6.000 min (Modified Rational, Composite) Rational, Critical) Intensity (Modified Rational, 5.100 in /h Intensity (Modified Rational, 5.100 in /h Peak) Critical) Flow (Modified Rational, Peak) 3.12 ft3 /s Flow (Modified Rational, 3.12 ft3 /s Critical) [3] First Outflow Breakpoint (Modified Rational, Method 0.000 min T) Flow (Modified Rational, 2 76 ft3 /s Allowable) [4l [5] Second Outflow Breakpoint 6.696 min Storage (Modified Rational, 0.003 ac -ft (Modified Rational) Estimated) Flow (Modified Rational, 2.76 ft3 /s Allowable) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center (08.11.01.51) 2/4/2010 27 Siemon Company Drive Suite 200 W Page 120 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Modified Rational Storm Calculations Label: CM -1 C Coefficient C Coefficient Duration Intensity (Weighted) (Adjusted) (min) (in /h) 0.690 0.690 10.000 Return Event: 2 years Storm Event: Albemarle - 2 Year Area Flow (Peak) (ft2) (ft3 /S) 4.100 38,332.800 2.51 Volume Volume (Inflow) (Storage) (ac -ft) (ac -ft) (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V81 Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 121 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Modified Rational Hydrograph Return Event: 2 years Label: CM -1 Storm Event: Albemarle - 2 Year Modified Rational Method Q = CiA * Unit Conversion; Where Conversion = 43560 / (12 * 3600) Frequency C Coefficient C Adjustment C Coefficient Intensity Area Flow (Peak) (years) Factor (Final) (in /h) (ft2) (ft3 /s) 2 1.000 1.000 0.690 5.100 38,332.800 3.12 Peak Discharge 3.12 ft3 /s Time to Peak 6.000 min Hydrograph Volume 0.529 ac -ft HYDROGRAPH ORDINATES (ft3 /s) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /s) (ft3 /s) (ft3 /s) (ft3 /s) (ft3 /5) 3.0001 1.561 3.121 1.561 0.00 (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 122 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Rational Pre - Development Peak Flow Return Event: 2 years Label: CM -1 Storm Event: Albemarle - 2 Year Summary of Rational Method Peak Discharges - -- Pre - Development Conditions - -- Q = CiA * Unit Conversion; Where Conversion = 43560 / (12 * 3600) Frequency (years) C Coefficient C Adjustment C Coefficient Intensity Factor (Final) (in /h) 0.610 1.000 0.610 5.100 Area Flow (Peak) (ft2) (ft3 /5) 38,332.800 2.76 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 21412010 27 Siemon Company Drive Suite 200 W Page 123 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Modified Rational Graph Label: CM -1 Method Type Method T Time of Duration (Modified 6.000 min Rational, Critical) Fbry Return Event: 2 years Storm Event: Albemarle - 2 Year rme Ill [2l Time of Concentration 6.000 min Time of Duration (Modified 6.000 min (Modified Rational, Composite) Rational, Critical) Intensity (Modified Rational, 5.100 in /h Intensity (Modified Rational, 5.100 in /h Peak) Critical) Flow (Modified Rational, Peak) 3.12 ft3 /s Flow (Modified Rational, 3.12 ft3 /s Critical) [3l First Outflow Breakpoint (Modified Rational, Method 0.000 min Flow (Modified Rational, 2.76 ft3 /s Allowable) [4) [5l Second Outflow Breakpoint 6.696 min Storage (Modified Rational, 0.003 ac -ft (Modified Rational) Estimated) Flow (Modified Rational, 2.76 ft3 /s Allowable) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 124 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Modified Rati Label: CM -1 C Coefficient C Coefficient (Weighted) (Adjusted) 0.690 0.690 anal Storm Calculations Return Event: 2 years Storm Event: Albemarle - 2 Year Duration Intensity Area Flow (Peak) Volume Volume (min) (in /h) (ft2) (ft3 /s) (Inflow) (Storage) (ac -ft) (ac -ft) 10.000 4.100 38,332.800 2.51 (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.511 214/2010 27 Siemon Company Drive Suite 200 W Page 125 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Modified Rational Hydrograph Return Event: 2 years Label: CM -1 Storm Event: Albemarle - 2 Year Modified Rational Method Q = CIA * Unit Conversion; Where Conversion = 43560 / (12 * 3600) Frequency C Coefficient C Adjustment C Coefficient Intensity Area Flow (Peak) (years) Factor (Final) (in /h) (ft2) (ft3 /s) 2 1.000 1.000 0.690 5.100 38,332.800 3.12 Peak Discharge 3.12 ft3 /s Time to Peak 6.000 min Hydrograph Volume 0.529 ac -ft HYDROGRAPH ORDINATES (ft3 /s) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /s) (ft3 /s) (ft3 /s) (ft3 /s) (ft3 /s) 3.0001 1.561 3.121 1.56 0.00 (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.61] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 126 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: C and Area (Pre - Development) Return Event: 10 years Label: CM -1 Storm Event: Albemarle - 2 Year C and Area Results (Pre - Development) Soil /Surface Description C Coefficient Area (ft2) pre 0.610 38,332.800 Weighted C & Total Area - - -> 0.610 38,332.800 Area (Adjusted) (ft2) (N /A) 23,383.008 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing•ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 127 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: C and Area (Post - Development) Label: CM -1 Soil /Surface Description post Weighted C & Total Area - - -> C and Area Results C Coefficient 0.690 0.690 Return Event: 10 years Storm Event: Albemarle - 2 Year Area (ft2) 38,332.800 38,332.800 Area (Adjusted) (ft2) (N /A) 26,449.632 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 128 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: C and Area (Pre - Development) Return Event: 10 years Label: CM -1 Storm Event: Albemarle - 2 Year C and Area Results (Pre - Development) Soil /Surface Description C Coefficient Area (ft2) pre 0.610 38,332.800 Weighted C & Total Area - - -> 0.610 38,332.800 Area (Adjusted) (ft2) (N /A) 23,383.008 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 129 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: C and Area (Post - Development) Label: CM -1 Soil /Surface Description post Weighted C & Total Area - - -> C and Area Results C Coefficient 0.690 0.690 Return Event: 10 years Storm Event: Albemarle - 2 Year Area (ft2) 38,332.800 38,332.800 Area (Adjusted) (ft2) (N /A) 26,449.632 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center (08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 130 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Rational Pre - Development Peak Flow Return Event: 10 years Label: CM -1 Storm Event: Albemarle - 10 Year Summary of Rational Method Peak Discharges - -- Pre - Development Conditions - -- Q = CIA * Unit Conversion; Where Conversion = 43560 / (12 * 3600) Frequency C Coefficient C Adjustment C Coefficient Intensity Area Flow (Peak) (years) Factor (Final) (in /h) (ft2) (ft3 /s) 10 0.610 1.000 0.610 6.600 38,332.800 3.57 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 131 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Modified Rational Graph Label: CM -1 Method Type Method T Time of Duration (Modified 6.000 min Rational, Critical) Flow Return Event: 10 years Storm Event: Albemarle - 10 Year Time Ill [2] Time of Concentration 6.000 min Time of Duration (Modified 6.000 min (Modified Rational, Composite) Rational, Critical) Intensity (Modified Rational, 6.600 in /h Intensity (Modified Rational, 6.600 in /h Peak) Critical) Flow (Modified Rational, Peak) 4.04 ft3 /s Flow (Modified Rational, Critical) 4.04 ft3 /s [3] First Outflow Breakpoint (Modified Rational, Method 0.000 min T) Flow (Modified Rational, Allowable) 3.57 ft3 /s [4] [5] Second Outflow Breakpoint 6.696 min Storage (Modified Rational, 0.004 ac -ft (Modified Rational) Estimated) Flow (Modified Rational, 3.57 ft3 /s Allowable) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center (08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 132 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Modified Rational Storm Calculations Return Event: 10 years Label: CM -1 Storm Event: Albemarle - 10 Year C Coefficient C Coefficient Duration Intensity Area Flow (Peak) Volume Volume (Weighted) (Adjusted) (min) (in /h) (ft2) (ft3 /s) (Inflow) (Storage) (ac -ft) (ac -ft) 0.690 0.690 10.000 5.500 38,332.800 3.37 (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 133 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Modified Rational Hydrograph Return Event: 10 years Label: CM -1 Storm Event: Albemarle - 10 Year Modified Rational Method Q = CiA * Unit Conversion; Where Conversion = 43560 / (12 * 3600) Frequency C Coefficient C Adjustment C Coefficient Intensity Area Flow (Peak) (years) Factor (Final) (in /h) (ft2) (ft3 /S) 10 1.000 1.000 0.690 6.600 38,332.800 4.04 Peak Discharge 4.04 ft3 /S Time to Peak 6.000 min Hydrograph Volume 0.685 ac -ft HYDROGRAPH ORDINATES (ft3 /s) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /S) (ft3 /S) (ft3 /S) (ftYS) (ft3 /S) 3.0001 2.02 1 4.041 2.021 0.00 (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 134 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Rational Pre - Development Peak Flow Return Event: 10 years Label: CM -1 Storm Event: Albemarle - 10 Year Summary of Rational Method Peak Discharges - -- Pre - Development Conditions - -- Q = CiA * Unit Conversion; Where Conversion = 43560 / (12 * 3600) Frequency C Coefficient C Adjustment C Coefficient Intensity Area (years) Factor (Final) (in /h) W) 10 0.610 1.000 0.610 6.600 38,332.800 Flow (Peak) (ft3 /s) 3.57 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center (08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 135 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Modified Rational Graph Return Event: 10 years Label: CM -1 Storm Event: Albemarle - 10 Year Method Type Method T Time of Duration (Modified 6.000 min Rational, Critical) MW Time [l] [2] Time of Concentration 6.000 (Modified Rational, Composite) min Time of Duration (Modified 6.000 min Rational, Critical) Intensity (Modified Rational, 6 .600 in /h Intensity (Modified Rational, 6.600 in /h Peak) Critical) Flow (Modified Rational, Peak) 4.04 ft3 /s Flow (Modified Rational, Critical) 4.04 ft3 /s [3] First Outflow Breakpoint (Modified Rational, Method 0.000 min T) Flow (Modified Rational, Allowable) 3 57 ft3 /s [4] [5] Second Outflow Breakpoint 6.696 min Storage (Modified Rational, 0.004 -ft (Modified Rational) Estimated) ac Flow (Modified Rational, 3.57 ft3 /s Allowable) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 136 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Modified Rational Storm Calculations Label: CM -1 C Coefficient C Coefficient (Weighted) (Adjusted) 0.690 0.690 Duration Intensity (min) (in /h) 10.000 5.500 Return Event: 10 years Storm Event: Albemarle - 10 Year Area Flow (Peak) (ft2) (ft3 /S) 38,332.800 3.37 Volume Volume (Inflow) (Storage) (ac -ft) (ac -ft) (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 137 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Modified Rational Hydrograph Return Event: 10 years Label: CM -1 Storm Event: Albemarle - 10 Year Modified Rational Method Q = CIA * Unit Conversion; Where Conversion = 43560 / (12 * 3600) Frequency C Coefficient C Adjustment C Coefficient Intensity Area Flow (Peak) (years) Factor (Final) (in /h) (ft2) (ft3 /s) 10 1.000 1.000 0.690 6.600 38,332.800 4.04 Peak Discharge 4,04 ft3 /s Time to Peak 6.000 min Hydrograph Volume 0.685 ac -ft HYDROGRAPH ORDINATES (ft3 /s) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /s) (ft3 /s) (ft3 /s) MYS) (ft3 /s) 3.0001 2.021 4.041 2.021 0.00 (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 138 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: C and Area (Pre - Development) Label: CM -1 Return Event: 100 years Storm Event: Albemarle - 2 Year C and Area Results (Pre - Development) Soil /Surface Description C Coefficient Area (ft2) pre 0.610 38,332.800 Weighted C & Total Area - - -> 0.610 38,332.800 Area (Adjusted) (ft2) (N /A) 23,383.008 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 139 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: C and Area (Post - Development) Label: CM -1 Soil /Surface Description lost Weighted C & Total Area - - -> C and Area Results C Coefficient 0.690 0.690 Return Event: 100 years Storm Event: Albemarle - 2 Year Area (ftz) 38,332.800 38,332.800 Area (Adjusted) (ftz) (N /A) 26,449.632 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 140 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: C and Area (Pre - Development) Return Event: 100 years Label: CM -1 Storm Event: Albemarle - 2 Year C and Area Results (Pre - Development) Soil /Surface Description C Coefficient Area (ft2) pre 0.610 38,332.800 Weighted C & Total Area - - -> 0.610 38,332.800 Area (Adjusted) (ft2) (N /A) 23,383.008 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V81 Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 141 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: C and Area (Post - Development) Label: CM -1 Soil /Surface Description post Weighted C & Total Area - - -> C and Area Results C Coefficient 0.690 0.690 Return Event: 100 years Storm Event: Albemarle - 2 Year Area (ft2) 38,332.800 38,332.800 Area (Adjusted) (ft2) (N /A) 26,449.632 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 214/2010 27 Siemon Company Drive Suite 200 W Page 142 of 153 Watertown, CT 06795 USA +1 -203 -755 -1666 Subsection: Rational Pre - Development Peak Flow Return Event: 100 years Label: CM -1 Storm Event: Albemarle - 100 Year Summary of Rational Method Peak Discharges - -- Pre- Development Conditions - -- Q = CIA * Unit Conversion; Where Conversion = 43560 / (12 * 3600) Frequency C Coefficient C Adjustment C Coefficient Intensity Area (years) Factor (Final) (in /h) (ft2) 100 0.610 1.000 0.610 Bentley Systems, Inc. Haestad Methods Solution Biofilter Routing.ppc Center 2/4/2010 27 Siemon Company Drive Suite 200 W Watertown, CT 06795 USA +1- 203 - 755 -1666 9.000 38,332.800 Flow (Peak) (ft3 /S) 4.87 Bentley PondPack V8i [08-11.01.51] Page 143 of 153 Subsection: Modified Rational Graph Label: CM -1 Method Type Method T Time of Duration (Modified 6.000 min Rational, Critical) Flow Return Event: 100 years Storm Event: Albemarle - 100 Year rime Ill [21 Time of Concentration 000 min Time of Duration (Modified 6.000 min (Modified Rational, Composite) 6. Rational, Critical) Intensity (Modified Rational, 9.000 in /h Intensity (Modified Rational, 9,000 in /h Peak) Critical) Flow (Modified Rational, Peak) 5.51 ft3 /s Flow (Modified Rational, 5.51 ft3 /s Critical) [3] First Outflow Breakpoint (Modified Rational, Method 0.000 min T) Flow (Modified Rational, 4.87 ft3 /s Allowable) [4] [51 Second Outflow Breakpoint 6.696 min Storage (Modified Rational, 0.005 ac-ft (Modified Rational) Estimated) Flow (Modified Rational, 4.87 ft3 /5 Allowable) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 144 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Modified Rational Storm Calculations Return Event: 100 years Label: CM -1 Storm Event: Albemarle - 100 Year C Coefficient C Coefficient Duration Intensity Area Flow (Peak) Volume Volume (Weighted) (Adjusted) (min) (in /h) (ft2) (ft3 /s) (Inflow) (Storage) (ac -ft) (ac -ft) 0.690 0.690 10.000 7.800 38,332.800 4.78 (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51) 2/4/2010 27 Siemon Company Drive Suite 200 W Page 145 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Modified Rational Hydrograph Return Event: 100 years Label: CM -1 Storm Event: Albemarle - 100 Year Modified Rational Method Q = CiA * Unit Conversion; Where Conversion = 43560 / (12 * 3600) Frequency C Coefficient C Adjustment C Coefficient Intensity Area Flow (Peak) (years) Factor (Final) (in /h) (ft2) (ft3 /s) 100 1.000 1.000 0.690 9.000 38,332.800 5.51 Peak Discharge 5.51 ft3 /s Time to Peak 6.000 min Hydrograph Volume 0.934 ac -ft HYDROGRAPH ORDINATES (ft3 /S) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /S) (ft3 /S) (ft3 /S) MYS) (ft3 /5) 3.0001 2.761 5.511 2.761 0.00 (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.511 2/4/2010 27 Siemon Company Drive Suite 200 W Page 146 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Rational Pre - Development Peak Flow Return Event: 100 years Label: CM -1 Storm Event: Albemarle - 100 Year Summary of Rational Method Peak Discharges - -- Pre - Development Conditions - -- Q = CiA * Unit Conversion; Where Conversion = 43560 / (12 * 3600) Frequency C Coefficient C Adjustment C Coefficient Intensity Area Flow (Peak) (years) Factor (Final) (in /h) (ft2) (ft3 /s) 100 0.610 1.000 0.610 9.000 38,332.800 4.87 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 147 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Subsection: Modified Rational Graph Label: CM -1 Method Type Method T Time of Duration (Modified 6.000 min Rational, Critical) Flew Return Event: 100 years Storm Event: Albemarle - 100 Year Time [11] [2] Time of Concentration 6.000 min Time of Duration (Modified 6.000 min (Modified Rational, Composite) Rational, Critical) Intensity (Modified Rational 9 Intensity (Modified Rational Peak) .000 in /h Critical) 9.000 in / h Flow (Modified Rational, Peak) 5.51 ft3 /s Flow (Modified Rational, 5.51 ft3 /s Critical) [3] First Outflow Breakpoint (Modified Rational, Method 0.000 min 1) Flow (Modified Rational, 4.87 ft3 /s Allowable) [4] [5] Second Outflow Breakpoint 6.696 min Storage (Modified Rational, 0.005 ac -ft (Modified Rational) Estimated) Flow (Modified Rational, 4.87 ft3 /s Allowable) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51) 2/4/2010 27 Siemon Company Drive Suite 200 W Page 148 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Modified Rational Storm Calculations Label: CM -1 Return Event: 100 years Storm Event: Albemarle - 100 Year C Coefficient C Coefficient Duration Intensity Area Flow (Peak) Volume Volume (Weighted) (Adjusted) (min) (in /h) (ft2) (ft3 /s) (Inflow) (Storage) (ac -ft) (ac -ft) 0.690 0.690 10.000 7.800 38,332.800 4.78 (N /A) (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51) 2/4/2010 27 Siemon Company Drive Suite 200 W Page 149 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Subsection: Modified Rational Hydrograph Return Event: 100 years Label: CM -1 Storm Event: Albemarle - 100 Year Modified Rational Method Q = CiA * Unit Conversion; Where Conversion = 43560 / (12 * 3600) Frequency C Coeff]cient C Adjustment C Coefficient Intensity Area Flow (Peak) (years) Factor (Final) (in /h) (ft2) (ft3 /s) 100 1.000 1.000 0.690 9.000 38,332.800 5.51 Peak Discharge 5.51 ft3 /s Time to Peak 6.000 min Hydrograph Volume 0.934 ac -ft HYDROGRAPH ORDINATES (ft3 /s) Output Time Increment = 3.000 min Time on left represents time for first value in each row. Time Flow Flow Flow Flow Flow (min) (ft3 /s) (ft3 /S) (ft3 /5) (ft3 /s) (ft3 /s) 3.0001 2.761 5.511 2.761 0.00 (N /A) Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 150 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Index Albemarle (I -D -F Table, 10 years) ... 6, 7, 8, 9 Albemarle (I -D -F Table, 100 years) ... 10, 11, 12, 13 Albemarle (I -D -F Table, 2 years) ... 14, 15, 16, 17 C CM -1 (C and Area (Post - Development), 10 years) ... 128, 130 CM -1 (C and Area (Post- Development), 100 years) ... 140, 142 CM -1 (C and Area (Post - Development), 2 years) ... 116, 118 CM -1 (C and Area (Pre - Development), 10 years) ... 127, 129 CM -1 (C and Area (Pre - Development), 100 years) ... 139,141 CM -1 (C and Area (Pre - Development), 2 years) ... 115, 117 CM -1 (Modified Rational Graph, 10 years) ... 132, 136 CM -1 (Modified Rational Graph, 100 years) ... 144,148 CM -1 (Modified Rational Graph, 2 years) ... 120, 124 CM -1 (Modified Rational Hydrograph, 10 years) ... 134,138 CM -1 (Modified Rational Hydrograph, 100 years) ... 146, 150 CM -1 (Modified Rational Hydrograph, 2 years) ... 122, 126 CM -1 (Modified Rational Storm Calculations, 10 years) ... 133, 137 CM -1 (Modified Rational Storm Calculations, 100 years) ... 145,149 CM -1 (Modified Rational Storm Calculations, 2 years) ... 121, 125 CM -1 (Rational Pre - Development Peak Flow, 10 years) ... 131,135 CM -1 (Rational Pre - Development Peak Flow, 100 years) ... 143,147 CM -1 (Rational Pre - Development Peak Flow, 2 years) ... 119, 123 CM -1 (Time of Concentration Calculations (Post - Development), 10 years) ... 28,29, 32,33 CM -1 (Time of Concentration Calculations (Post- Development), 100 years) ... 36, 37, 40,41 CM -1 (Time of Concentration Calculations (Post- Development), 2 years) ... 20,21, 24,25 CM -1 (Time of Concentration Calculations (Pre - Development), 10 years) ... 26,27, 30,31 CM -1 (Time of Concentration Calculations (Pre - Development), 100 years) ... 34,35, 38,39 CM -1 (Time of Concentration Calculations (Pre - Development), 2 years) ... 18, 19, 22,23 Composite Outlet Structure - i (Composite Rating Curve, 10 years) ... 88 Composite Outlet Structure - 1 (Composite Rating Curve, 100 years) ... 92 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.511 2/4/2010 27 Siemon Company Drive Suite 200 W Page 151 of 153 Watertown, CT 06795 USA +1 -203- 755 -1666 Composite Outlet Structure - 1 (Composite Rating Curve, 2 years) ... 84 Composite Outlet Structure - i (Individual Outlet Curves, 10 years) ... 87 Composite Outlet Structure - 1 (Individual Outlet Curves, 100 years) ... 91 Composite Outlet Structure - 1 (Individual Outlet Curves, 2 years) ... 83 Composite Outlet Structure - 1 (Outlet Input Data, 10 years) ... 85, 86 Composite Outlet Structure - 1 (Outlet Input Data, 100 years) ... 89, 90 Composite Outlet Structure - 1 (Outlet Input Data, 2 years) ... 81, 82 M Master Network Summary ... 4, 5 Modified Rational Grand Summary ... 3 0 0 -1 (Addition Summary, 10 years) ... 44, 45 0 -1 (Addition Summary, 100 years) ... 46, 47 0 -1 (Addition Summary, 2 years) ... 42, 43 Outlet -1 (Diverted Hydrograph, 10 years) ... 95, 96 Outlet -1 (Diverted Hydrograph, 100 years) ... 97, 98 Outlet -1 (Diverted Hydrograph, 2 years)...93, 94 P PO -1 (Elevation -Area Volume Curve, 10 years) ... 77 PO -1 (Elevation -Area Volume Curve, 100 years) ... 79 PO -1 (Elevation -Area Volume Curve, 2 years) ... 75 PO -1 (Elevation - Volume -Flow Table (Pond), 2 years) ... 99 PO -1 (IN) (Level Pool Pond Routing Summary, 10 years) ... 101 PO -1 (IN) (Level Pool Pond Routing Summary, 100 years) ... 102 PO -1 (IN) (Level Pool Pond Routing Summary, 2 years) ... 100 PO -1 (IN) (Pond Inflow Summary, 10 years) ... 111, 112 PO -1 (IN) (Pond Inflow Summary, 100 years) ... 113, 114 PO -1 (IN) (Pond Inflow Summary, 2 years) ... 109, 110 PO -1 (OUT) (Pond Routed Hydrograph (total out), 10 years) ... 105, 106 PO -1 (OUT) (Pond Routed Hydrograph (total out), 100 years) ... 107, 108 PO-1 (OUT) (Pond Routed Hydrograph (total out), 2 years) ... 103,104 PO -1 (OUT) (Time vs. Elevation, 10 years) ... 54, 55, 56, 57, 58, 59 PO -1 (OUT) (Time vs. Elevation, 100 years) ... 60, 61, 62, 63, 64, 65 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 152 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 PO -1 (OUT) (Time vs. Elevation, 2 years) ... 48, 49, 50, 51, 52, 53 PO -1 (Time vs. Volume, 10 years) ... 69, 70, 71 PO -1 (Time vs. Volume, 100 years) ... 72,73,74 PO -1 (Time vs. Volume, 2 years) ... 66, 67, 68 PO -1 (Volume Equations, 10 years) ... 78 PO -1 (Volume Equations, 100 years) ... 80 PO -1 (Volume Equations, 2 years) ... 76 U User Notifications ... 2 Bentley Systems, Inc. Haestad Methods Solution Bentley PondPack V8i Biofilter Routing.ppc Center [08.11.01.51] 2/4/2010 27 Siemon Company Drive Suite 200 W Page 153 of 153 Watertown, CT 06795 USA +1- 203 - 755 -1666 Worksheet 3 : Situation Page 1 of 5 Summary of Situation 3 criteria: from calculation procedure STEP I thru STEP 3, Worksheet 1: Applicable area (A)* = 1.2? acres IpoSt = (total post - development impervious cover T A) x 100 = o 0 0 watershed = ' or Iwatershed = 16 �0 Iexisting = (total existing impervious cover _ A *) x 100 =• °lam > I o Iex[sting �'� watershed STEP 4 Determine the relative pre - development pollutant load (Lprj. 1. Pre - development pollutant load based on the existing impervious cover: Lpre(existing) = [0.05 + (0.009 x Iexisting)] x A x 2.28 (Equation 5 -17) where: Lpre(existing) = relative pre - development total phosphorous load (pounds per year) Iexis6ng = existing site impervious cover (percent expressed in whole numbers) A = applicable area (acres) Lpre(existing) = [0.05 + (0.009 x D, )] x U -7 x2.28 = 1.2-0 pounds per year 5D -13 Worksheet 3 : Situation 3 Page 2 of 5 2. Pre - development pollutant load based on the average land cover condition: Lpre(watershed) — [0.05 + (0.009 x watershed)] x A x 2.28 (Equation 5 -16) where: Lpre(watershed) = relative pre - development total phosphorous load (pounds per year) watershed = average land cover condition for specific watershed or locality or the Chesapeake Bay default value of 16% (percent expressed in whole numbers) A = applicable area (acres) Lpre(watershed) = [0.05 + (0.009 x )] x x 2.28 .r pounds per year STEPS Determine the relative post - development pollutant load (Lpost). Lpost = [0.05 + (0.009 x Ip .)] x A x 2.28 (Equation 5 -21) where: Lpost = relative post - development total phosphorous load (pounds per year) IpOSt = post - development percent impervious cover (percent expressed in whole numbers) A = applicable area (acres) Lpost = [0.05 + (0.009 x 5ZO•i 1)] x �,?7 x 2.28 pounds per year STEPS Determine the relative pollutant removal requirement-(RR). RR = Lp�t - (0.9 x Lpre(.iw g)) - (0.9 x L 2.0 ) _ �• pounds per year RR = Lpost - I'pre(watershed) - = pounds per year 5D -14 Worksheet 3 : Situation 3 Page 3 of 5 The pollutant removal requirement (RR) for Situation 3 is the lesser of the two values calculated above: RR = 0 -5S pounds per year TFp 7 Identify best management practice (BMP) for the site. 1. Determine the required pollutant removal efficiency for the site: EFF = (RR - Lp,.t) x 100 (Equation 5 -22) where: EFF = required pollutant removal efficiency (percent expressed in whole numbers) RR = pollutant removal requirement (pounds per year) LP-St = relative post- development total phosphorous load (pounds per year) EFF = ( 0,545 — (-CPS-) x 100 = 33. -74 % 2. Select BMP(s) from Table 5 -15 and locate on the site: BMP 1: 910F1L-fFC ( Y?,") SD% z'"'t4vAL R1r-E BMP 2: BMP 3: 5D -15 P RFUR ViAi�iGE -BASED WATER QUALITY' 4tAt :AT ON5 APPE & SD Worksheet 3 : Situation 3 Page 4 of 5 3. Determine the pollutant load entering the proposed BMP(s): LBmp _ [0.05 + (0.009 x IBw)] x A x 2.28 (Equation 5 -23) where: LBMP = relative post- development total phosphorous load entering proposed BNIP (pounds per year) IBw = post - development percent impervious cover of BMP drainage area (percent expressed in whole numbers) A = drainage area of proposed BMP (acres) LBmp, = [0.05 + (0.009 x GZ. �9 )j x 0. $$ x 2.28 . 23 pounds per year LBW2 = [0.05 + (0.009 x )] x x 2.28 pounds per year 443 = [0.05 + (0.009 x )] x x 2.28 pounds per year 4. Calculate the pollutant load removed by the proposed BMP(s): Lremoved = EffsMr x IBw (Equation 5 -24) where: L.moved = Post - development pollutant load removed by proposed BMP (pounds per year) EffBNe = pollutant removal efficiency of BMP (expressed in decimal form) LBw = relative post - development total phosphorous load entering proposed BMP (pounds per year) o LremovedB is MP1 — f' x �0 = a• (o 1 pounds per year LremovedBMP2 = x LremovedBMP3 — x 5D -16 pounds per year pounds per year Worksheet 3 : Situation Page 5 of 5 5. Calculate the total pollutant load removed by the BMP(s): Lremoved/total — L'removed/BMPI + L'removedmmn + Lremovedmw3 + • • (Equation 5 -25) where: Lremo ed/t,,w = total pollutant load removed by proposed BMPs L.ovedBWI = pollutant load removed by proposed BMP No. 1 LrmovedSM = pollutant load removed by proposed BMP No. 2 L.ov.Mm = pollutant load removed by proposed BMP No. 3 Lremoved/total — + + + l pounds per year 6. Verify compliance: Lremoved/total 2 RR 0. I z D.SS W13 WA