J_2024 05 09_West Orange Stormwater Management Plan

APPENDIX C - CIVILSTORM OUTPUT

Scenario: 25-Year 2024-05-02_West Orange.stsw 5/10/2024 Bentley Systems, Inc. Haestad Methods Solution Center 76 Watertown Road, Suite 2D Thomaston, CT 06787 USA +1-203-755-1666 CivilStorm [10.04.00.158] Page 1 of 1

FlexTable: Conduit Table 25-YR STORM EVENT Label Start Node SD-01 SD-02 SD-03 SD-04 SD-05 SD-06 SD-07 SD-08 SD-09 SD-10 SD-11 SD-12 SD-21 SD-22 SD-23 SD-24 SD-25 CB-01 MH-01 TD-01 MH-02 MH-03 TD-02 MH-04 MH-05 TD-03 MH-06 TD-04 MH-07 CS-01 CS-02 CS-03 CS-04 CS-05 SD-26 MH-21 2024-05-02_West Orange.stsw 5/10/2024 Stop Node Diameter (in) Length (User Defined) (ft) Elevation Ground (Start) (ft) MH-01 MH-02 MH-02 MH-03 MH-04 MH-04 MH-05 MH-06 MH-06 MH-07 MH-07 MH-08 (O-1A) CS-02 CS-03 CS-04 CS-05 MH-21 TYPE 'B' INLET (O-1B) 12.0 12.0 12.0 12.0 18.0 12.0 18.0 18.0 12.0 18.0 12.0 18.0 12.0 12.0 15.0 15.0 15.0 31.6 78.0 5.0 19.1 38.9 5.0 18.8 135.7 5.0 83.6 5.0 158.1 64.5 127.3 93.7 111.3 262.4 602.00 607.65 607.00 605.36 606.18 606.25 605.03 603.48 603.81 602.82 602.77 602.85 602.40 601.40 601.15 599.65 599.65 18.0 29.4 587.55 Invert (Start) (ft) Elevation Ground (Stop) (ft) Invert (Stop) (ft) Manning's n Slope (Calculated) (ft/ft) 598.38 597.81 604.00 596.79 596.35 603.30 595.71 595.27 601.22 593.67 599.88 592.58 591.58 590.36 588.20 586.55 584.63 607.65 605.36 605.36 606.18 605.03 605.03 603.48 602.82 602.82 602.85 602.85 597.13 601.40 601.15 599.65 599.65 587.55 598.06 597.04 603.95 596.60 595.96 603.25 595.52 593.92 601.17 592.83 599.83 591.00 590.61 588.45 586.80 584.88 580.69 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.013 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.010 0.015 0.015 0.015 0.015 0.015 5.75 5.75 1.40 7.15 7.15 0.83 7.98 8.22 2.20 10.42 1.75 12.17 5.07 7.85 9.18 10.20 11.42 7.32 7.32 4.27 9.10 6.40 3.70 6.57 6.56 4.77 5.90 4.52 6.89 6.46 9.99 7.48 8.31 9.31 580.44 586.03 580.00 0.013 0.015 11.42 8.21 Bentley Systems, Inc. Haestad Methods Solution Center 76 Watertown Road, Suite 2D Thomaston, CT 06787 USA +1-203-755-1666 Flow (cfs) Velocity (ft/s) Capacity (Full Flow) (cfs) Hydraulic Grade Line (In) (ft) Hydraulic Grade Line (Out) (ft) 3.58 3.54 3.56 3.56 10.52 3.56 10.56 10.48 3.56 10.53 3.56 10.50 4.37 4.36 7.89 7.91 7.92 601.22 600.39 604.50 598.36 597.39 603.68 596.80 596.38 601.85 595.33 600.44 594.51 602.28 600.97 594.79 592.90 590.13 600.39 598.36 604.40 597.58 596.87 603.59 596.51 595.33 601.76 594.51 600.34 592.32 600.97 594.79 592.90 590.13 581.90 12.84 581.73 581.13 CivilStorm [10.04.00.158] Page 1 of 1

Profile Report Engineering Profile - CB-01 to MH-08 (O-1A) (2024-05-02_West Orange.stsw) 25-YR STORM EVENT 610.00 Elevation (ft) 605.00 MH-01 Rim: 607.65 ft Invert: 597.81 ft MH-03 Rim: 606.18 ft Invert: 596.35 ft MH-02 Rim: 605.36 ft Invert: 596.79 ft MH-04 Rim: 605.03 ft Invert: 595.52 ft MH-07 Rim: 602.85 ft Invert: 592.58 ft MH-06 Rim: 602.82 ft Invert: 592.83 ft MH-05 Rim: 603.48 ft Invert: 593.92 ft CB-01 Rim: 602.00 ft Invert: 598.38 ft MH-08 (O-1A) Rim: 597.13 ft Invert: 590.26 ft 600.00 SD-01: 31.6 ft @ 0.010 ft/ft Circle - 12.0 in 595.00 SD-02: 78.0 ft @ 0.010 ft/ft Circle - 12.0 in SD-04: 19.1 ft @ 0.010 ft/ft Circle - 12.0 in SD-05: 38.9 ft @ 0.010 ft/ft Circle - 18.0 in Concrete SD-07: 18.8 ft @ 0.010 ft/ft Circle - 18.0 in SD-08: 135.7 ft @ 0.010 ft/ft Circle - 18.0 in SD-10: 83.6 ft @ 0.010 ft/ft Circle - 18.0 in SD-12: 158.1 ft @ 0.010 ft/ft Circle - 18.0 in 2+00 3+00 4+00 590.00 -0+50 0+00 0+50 1+00 1+50 2+50 3+50 4+50 5+00 5+50 6+00 Station (ft) 2024-05-02_West Orange.stsw 5/10/2024 Bentley Systems, Inc. Haestad Methods Solution Center 76 Watertown Road, Suite 2D Thomaston, CT 06787 USA +1-203-755-1666 CivilStorm [10.04.00.158] Page 1 of 1

Profile Report Engineering Profile - CS-01 to TYPE 'B' INLET (O-1B) (2024-05-02_West Orange.stsw) 25-YR STORM EVENT CS-01 Rim: 602.40 ft Invert: 591.57 ft 605.00 CS-02 Rim: 601.40 ft Invert: 590.35 ft CS-03 Rim: 601.15 ft Invert: 588.19 ft CS-05 Rim: 599.65 ft Invert: 584.62 ft CS-04 Rim: 599.65 ft Invert: 586.53 ft 600.00 TYPE 'B' INLET (O-1B) Rim: 586.03 ft Invert: 578.11 ft 595.00 Elevation (ft) MH-21 Rim: 587.55 ft Invert: 580.44 ft 590.00 SD-21: 64.5 ft @ 0.015 ft/ft Circle - 12.0 in 585.00 SD-22: 127.3 ft @ 0.015 ft/ft Circle - 12.0 in SD-23: 93.7 ft @ 0.015 ft/ft Circle - 15.0 in SD-24: 111.3 ft @ 0.015 ft/ft Circle - 15.0 in SD-25: 262.4 ft @ 0.015 ft/ft Circle - 15.0 in 580.00 SD-26: 29.4 ft @ 0.015 ft/ft Circle - 18.0 in 575.00 -0+50 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 5+00 5+50 6+00 6+50 7+00 Station (ft) 2024-05-02_West Orange.stsw 5/10/2024 Bentley Systems, Inc. Haestad Methods Solution Center 76 Watertown Road, Suite 2D Thomaston, CT 06787 USA +1-203-755-1666 CivilStorm [10.04.00.158] Page 1 of 1

APPENDIX D - STORMWATER MAINTENANCE PLAN & FIELD MANUAL

Stormwater Management Measures Maintenance Plan & Field Manuals Development Name: PSE&G West Orange Switching Station Address: 325 Mount Pleasant Avenue Block(s) / Lot(s): _Block 155, Lot 26.01 City, County: _ West Orange Township, Essex County Party Responsible for Maintenance: ___________Public Service Electricity & Gas_________ Address: ______________________ Contact Person(s): ______________ Phone: ___________ Prepared by: Michael Blake, PE Date: April 30, 2024 This plan is recorded in Deed Book # _______ Page # ____ with Essex County Clerk on Date _______ Last Revised on 4 / 30 / 2024 March 2024 Stormwater Management Measures Maintenance Plan & Field Manuals

NOTE This Maintenance Plan is intended to be editable and adjustable in accordance with the design of stormwater management measures, the site conditions, and the special needs of responsible party. The Engineer should supplement information and best management practice to assist the responsible party to perform maintenance. March 2024 Stormwater Management Measures Maintenance Plan & Field Manuals

Table of Contents Part I- Maintenance List of Stormwater Management Measures ...................................................................... 2 Location Map ...................................................................................................................... 3 Description of Stormwater Management Measures......................................................... 4 Preventative and Corrective Maintenance Action Plan .................................................... 5 Maintenance Personnel, Equipment, Tools, and Supplies ............................................... 8 Cost Estimate ...................................................................................................................... 9 Training Plan and Records ............................................................................................... 11 Annual Evaluation of the Effectiveness of the Plan ........................................................ 13 Documents ....................................................................................................................... 15 Pervious Pavement System Overview .............................. Error! Bookmark not defined. Basic Design Information .................................................. Error! Bookmark not defined. Visual Aid for Pervious Paving System Inspection ........... Error! Bookmark not defined. Reference Documents....................................................... Error! Bookmark not defined. Inspection Checklist / Maintenance Actions .................... Error! Bookmark not defined. Preventative Maintenance Record ................................... Error! Bookmark not defined. Corrective Maintenance Record ....................................... Error! Bookmark not defined. Bioretention System Overview ........................................................................................ 21 Basic Design Information ................................................................................................. 22 Chamfer Bioretention (1A) ............................................................................................... 22 Western Internal Bioretention (1B) .................................................................................. 24 Eastern Internal Bioretention (1C) ...................................................................................

.............................................................................. 24 Eastern Internal Bioretention (1C) ................................................................................... 26 Pervious Asphalt (2A) ....................................................................................................... 29 Northern Bioretention (2B) .............................................................................................. 30 Visual Aid for Bioretention System Inspection................................................................ 34 Reference Documents...................................................................................................... 35 Inspection Checklist / Maintenance Actions ................................................................... 37 Preventative Maintenance Record .................................................................................. 44 Corrective Maintenance Record ...................................................................................... 45 March 2024 Stormwater Management Measures Maintenance Plan & Field Manuals