complete drainage report rev 9

Docusign Envelope ID: E802A2F1-2485-417E-948D-E0A4008C75BD Porous Pavement system #5 Porous pavement #5 collects stormwater from the Building B parking lot, Building B roof and grass areas around the building. The total drainage area is 1.07 acres with the majority of that area the building roof or the porous pavement surface. The ratio of other contributing areas to the Porous pavement area is 4:1 The areas contributing to the Porous pavement system are 46,607.8sf Roof 26,232 sf connected directly Porous pavement 14,590.0 sf Overland flow area 5785.8 sf Ratio 2.19:1 The system will have soil replacement with a permeability of 4 inches per hour with a factor of safety of 2. The proposed Tc for the area flowing to PP5 uses the following input Sheet flow 40 lf @2% over pavement Tc= .6 minutes Pipe flow 182 lf pipe , 2.5 fps Tc = 1.2 minutes Total Tc = 1.8 minutes The porous pavement system is considered green technology for both groundwater recharge and water quality. The roof area will connect directly with the underground system with pre-treatment before. Porous Pavement system #6 Porous pavement #6 collects stormwater from the parking lot between Buildings B and C, and grass areas around the building. The ratio of total areas to the porous pavement area is 1.9:1 The system will have soil replacement with a permeability of 4 inches per hour with a factor of safety of 2. The areas contributing are 108077.0 sf Porous pavement 37197.0 sf Lawn and other contributing areas 70,879.7 sf Ratio 1.91:1 The proposed Tc for the area flowing to PP6 uses the following input Sheet flow 40 lf @2% over pavement Tc= .6 minutes Pipe flow 450 lf pipe , 2.5 fps Tc = 3 minutes Total Tc = 3.6 minutes The porous pavement system is considered green technology for both groundwater recharge and water quality. 6

Docusign Envelope ID: E802A2F1-2485-417E-948D-E0A4008C75BD PA-1 Discharge Summary STORM WQ 2 YR 10 YR 100 YR EXISTING 7.08 15.93 35.21 PERMITTED #1 #5 #6 3.54 11.15 28.17 0 .75 3.24 12.27 0 0 1.06 4.67 0 0 .13 3.02 OVERLAND FLOW .43 2.33 4.75 9.71 POA 1 .43 2.36 5.27 14.86 Point of Analysis 2 This drainage area discharges to the Canoe Brook Tributary which exists at the site between the Kusik Dr and Warner Road entrance to the property. The stormwater management systems in this drainage area are small scale infiltration basins 2 , 7 & 10 and porous pavement systems 3,4, 8, &11. Each of these systems are considered green technology for quantity, quality and recharge. Small Scale Infiltration Basin 2 This stormwater system collects water from the parking lot and grass areas behind Building A. The total contributory area is 2.49 acres. The system will have soil replacement with a permeability of 4 inches per hour with a factor of safety of 2. The proposed Tc for the area flowing to Basin 2 uses the following input Sheet flow 93lf @5% over grass Tc= 9 minutes Shallow concentrated flow 370 lf over pavement @ 6.5% Tc = 1.5 minutes Total Tc = 10.5 minutes The small-scale infiltration basin is considered green technology for both groundwater recharge and water quality. 7

Docusign Envelope ID: E802A2F1-2485-417E-948D-E0A4008C75BD Porous Pavement #3 System 3 collects water from the Kennel parking lot and adjacent grass areas. contributing areas to the porous pavement area is 2.97: 1 Areas contributing 21910 sf Porous Pavement 5500 sf Lawn and other contributing areas 16,410 sf ratio 2.98:1 The ratio of other The system will have soil replacement with a permeability of 20 inches per hour with a factor of safety of 2. The proposed Tc for the area flowing to PP3 uses the following input Sheet flow 75 lf. @ 4% over grass 8.3 minutes Total Tc = 8.3 minutes The porous pavement system is considered green technology for both groundwater recharge and water quality. Porous Pavement system 4 Tc Computations System 4 collects water from half of the Building A parking lot as well as adjacent grass areas. ratio of the total areas to the porous pavement area is 2.99 The system will have soil replacement with a permeability of 4 inches per hour with a factor of safety of 2: 1 Areas Contributing 49050.0 sf Porous pavement 12,268.7 sf Lawn and other contributing areas 36781.3 sf The Ratio 2.99 The proposed Tc for the area flowing to PP3 uses the following input Sheet flow 70 lf @ 2% over roof .9 minutes Pipe flow 685 lf @ 2.5 fps 4.6 minutes Total Tc = 5.5 minutes The porous pavement system is considered green technology for both groundwater recharge and water quality. 8

Docusign Envelope ID: E802A2F1-2485-417E-948D-E0A4008C75BD Small Scale Infiltration Basin 7 This stormwater system collects water from the parking lot and grass areas behind the clubhouse as well as Warner Road. The total contributory area is 2.45 acres. The system will have soil replacement with a permeability of 4 in/hr with a factor of safety of 2. The proposed Tc for the area flowing to Basin 7 uses the following input Sheet flow 83 lf @4% over grass Tc= 8.9 min Shallow concentrated flow 277 lf over grass @ 6 % Tc = 1.1 minutes Shallow concentrated flow 40 lf over pavement @ 6.7 % Tc =.1 minutes Pipe Flow 365 lf @ 2.5 fps 2.4 minutes Total Tc = 12.5 minutes The small-scale infiltration basin is considered green technology for both groundwater recharge and water quality. Porous Pavement system 8 System 8 collects water from part of the clubhouse roof, and portions of Kusik Drive and Warner Road. The ratio of non-roof contributing areas to the porous pavement area is 2.92: 1. The system will have soil replacement with a permeability of 4 in/hr with a factor of safety of 2. Contributing areas 61042.8 Roof 11,475 sf Porous Pavement 15,545.0 Lawn and other contributing areas 34022.8 sf Ratio 2.92:1 The proposed Tc for the area flowing to PP8 uses the following input Sheet flow 100 lf @ 7% over grass 8.3 minutes Shallow Concentrated Flow 65 lf @ 6% over grass.3 minutes Total Tc = 8.6 minutes The porous pavement system is considered green technology for both groundwater recharge and water quality. 9

Docusign Envelope ID: E802A2F1-2485-417E-948D-E0A4008C75BD Porous Pavement system 9 System 9 collects stormwater from Road D from the clubhouse area past the Bridge crossing of the stream and a small section nof roof from the clubhouse. The ratio of contributing areas to the porous pavement area is 2.54 :1. The system is above natural grade and backfill will be permeable soil meeting the permeability rate of 4 inches per hour with a factor of safety of 2. Contributing Areas 26376.6 Roof 1146.6 sf Porous Pavement 7443 sf Lawn and other contributing areas 17,787.0 sf Ratio 2.54:1 The proposed Tc for the area flowing to PP9 uses the following input Sheet flow 100 lf @ 10% over grass 7.2 minutes Shallow Concentrated Flow 40 lf @ 7.5% over grass 2 minutes Total Tc = 7.4 minutes The porous pavement system is considered green technology for both groundwater recharge and water quality. Small Scale Infiltration Basin 10 This stormwater system collects water from the roof of building D and the roadway/ parking area in front of Building D and some adjacent grass areas. The total contributory area is 2.2 acres. The system will have soil replacement with a permeability of 10 in/hr with a factor of safety of 2. The proposed Tc for the area flowing to Basin 10 uses the following input Sheet flow 59 lf @2% over grass Tc= 9 minutes Shallow concentrated flow 210 lf over grass @ 4.8 % Tc = 1 minutes Pipe Flow 110 lf @ 2.5 fps .7 minutes Total Tc = 10.7 minutes Basin 10 is designed as a small scale basin with exfiltration at the rate of the replacement soil. Exfiltration is set at the replacement soil rate. Pre-treatment is achieved with MTD that is approved for 50% removal prior to discharge to the basin 10

Docusign Envelope ID: E802A2F1-2485-417E-948D-E0A4008C75BD Porous Pavement system 11 System 11 collects stormwater from Road D, half of the Building D roof and adjacent grass areas The ratio of contributing areas to the Porous pavement area is 2.78 : 1 The system will have soil replacement with a permeability rate of 10 inches per hour with a factor of safety of 2. Contributing areas 84102.7 Roof 32,202.6 sf Porous Pavement 22269.7 sf Lawn and other contributing areas 29630.4 sf Ratio 2.78:1 The proposed Tc for the area flowing to PP11 uses the following input Sheet flow 83 lf @ 4% over grass 8.9 minutes Shallow Concentrated Flow 150 lf @ 3.3% over grass 9 minutes Total Tc = 9.8 minutes The porous pavement system is considered green technology for both groundwater recharge and water quality. PA-2 Discharge Summary STORM WQ 2 10 100 EX PER 17.53 38.43 83.14 8.77 26.90 66.51 2 0 .19 .93 5.38 3 0 0 0 1.15 4 0 0 .10 .81 7 0 .53 1.73 3.65 11 8 0 0 0 .68 9 0 0 0 .16 10 0 0 .93 5.31 11 0 .1 2.25 7.54 UD 3.61 7.21 13.00 24.70 T 3.61 7.24 15.29 38.99

Docusign Envelope ID: E802A2F1-2485-417E-948D-E0A4008C75BD Point of Analysis 3 Point of analysis 3 discharges to an existing drainage system in Howell Drive. This municipal system flows to the east away from the onsite streams. This drainage area is only for disturbance associated with one half of the emergency access road which will be gated closed and will have little vehicle traffic. The design achieves stormwater management standards of quality, quantity and recharge with the use of filterra water quality devices discharging to a small scale subsurface infiltration basin with soil replacement. The system recharges the entire volume of the 100 yr storm to the ground. An emergency overflow to the municipal system is provided. The proposed Tc is calculated as follows: 50 lf sheet flow @ 12% grass Tc = 3.8 60 lf @ 12% grass swale Tc= .2 Total Tc = 4 minutes. PA-3 Summary STORM 2 10 100 EXISTING .13 .32 .75 PERMITTED .07 .22 .60 BASIN 12 0 0 0 TOTAL 0 0 0 ` Conclusion The design of the West Essex Highlands Project has been completed in accordance with the court approved resolution with the limiting of the area of disturbance below 30 acres and the inclusion of environmentally friendly designs that are sensitive to the existing environmental constraints. The stormwater design includes green technology for water quantity, quality and seeks to optimize the volume groundwater recharge with green technology. The overall discharge has been conservatively calculated for each drainage basin and overall and meet the discharge standards as required in the state standards and municipal ordinance. 12

1,211,769.7 SF 27.82 Acres 595,540.7 SF 13.68 Acres DISTURBED: TOTAL IMPERVIOUS: Call before you dig. Know what's below. R MOTOR VEHICLE SURFACE AREA: 273,689.0 SF 6.28 Acres 4,034,100.3 SF 92.61 Acres UNDISTURBED / PRESERVED: BogCc BogBc C BouB BogCc TOTAL AREA TO POA-3 - 7,751.3 SF TOTAL AREA TO POA-2 - 808,221.9 SF TOTAL AREA TO POA-1 - 395,796.5 SF HasB SHALLOW CONCENTRATED FLOW (UNPAVED) 1,625 LF @ 5.4% BogDc HanBc POINT OF ANALYSIS-1 (TYP) CANOE BROOK ONSITE STREAM DRAINAGE AREA 35.48 ACRES BouB BogBc HctBc POINT OF ANALYSIS-2 (TYP) Tc = 22.1 MIN SHEET FLOW (WOODS, LIGHT UNDERBRUSH) 100 LF @ 4.5% B A C B Tc = 16.8 MIN SHEET FLOW (LIGHT UNDERBRUSH) 100 LF @ 4.5% BouC SHALLOW CONCENTRATED FLOW (UNPAVED) 564 LF @ 9.2% A BouB HctBc HanBc BogCc C BogDc BogDc HanBc BogBc A B POINT OF ANALYSIS-3 (TYP) - POINT OF ANALYSIS BogBc Tc = 15.8 MIN SHEET FLOW (WOODS, LIGHT UNDERBRUSH) 100 LF @ 4.0% SHALLOW CONCENTRATED FLOW (UNPAVED) 70 LF @ 11.5% BouD HanBc BogCc PecuuB BogBc PecuuB BogCc PecmBc Proj. No. BouB SIGNATURE INVALID WITHOUT RAISED SEAL OF P.E. SHEET 1 OF 2 DA-1 Date BouC N.J. PROFESSIONAL ENGINEER LIC. NO. 33410 BCA Drawn by PAUL W. ANDERSON PRELIMINARY AND FINAL SITE PLAN PWA Designed by Anderson Consulting Services LLC PWA Checked by 40 Miller Drive Boonton, NJ 07005 CERTIFICATE OF AUTHORIZATION TEl: 973.975.0703 Fax: 973.975.0703 24GA28182400 www.pwanderson-cs.com AS SHOWN Scale

536 534 538 R Call before you dig. 606 2.19 5,785.8 SF 14,590.0 SF 26,232.0 SF WARNER ROAD UNDETAINED MOTOR VEHICLE SURFACE TO FILTERRAS 5,165.9 SF KUZIK DRIVE UNDETAINED MOTOR VEHICLE SURFACE TO FILTERRAS 7,165.2 SF 1.91 70,880.0 SF 37,197.0 SF 108,077.0 SF 56,858.0 SF 51,219.0 SF CONTRIBUTING AREA: POROUS PAVEMENT: POROUS PAVEMENT RATIO: Tc = 3.6 MIN TOTAL: IMPERVIOUS: PERVIOUS: 574 574 572 576 578 B A DA #4 A 600 DA #1 FF:619 .0 544 532 538 534 536 Tc = 12.5 MIN 550 552 562 598 564 538 544 548 546 550 590 596 540 566 A 58 600 542 6 572 584 598 596 592 576 578 580 582 594 590 594 596 574 590 604 588 576 578 UNDETAINED FF:600.1 BF:587.1 578 273,689.0 SF 6.28 ACRES 576 586 PO OL 586.2 DR IVE UNDETAINED 580 578 572 570 568 DA 574 564 566 568 566 34,541.0 SF ROOF AREA: Tc = 10.7 MIN B 600 574 598 C 602 576 604 576 576 596 B 606 610 578 A 608 FF:618 .0 GF:607.0 612 A 580 584 586 584 586 TOTAL: IMPERVIOUS: PERVIOUS: Tc = 4.0 MIN DA 12 590 FF:618 .0 GF:594.0 DA #10 SHEET FLOW (GRASS, DENSE) 83 LF @ 4.0% SHEET FLOW 50 LF @ 10.0% SCF 60 LF @ 12.0% GRASS LGF:58 2.0 UNDETAINED W/ FILTERRA 1,211,769.7 SF 27.82 Acres 7,751.3 SF 2,500 SF 5,251.3 SF 2.78 29,630.4 SF 22,269.7 SF 32,202.6 SF 84,102.7 SF 59,900.4 SF 24,202.3 SF 588 CONTRIBUTING AREA: POROUS PAVEMENT: ROOF AREA: POROUS PAVEMENT RATIO: Tc = 9.8 MIN 582 588 590 FF:618.0 GF:597 .0 DA #11 612 TOTAL: IMPERVIOUS: PERVIOUS: DA 11 SHEET FLOW (GRASS, DENSE) 100 LF @ 10% 572 606 606 TOTAL SITE LIMIT OF DISTURBANCE 90,349.5 SF 53,114.0 SF 37,235.5 SF 2.54 P.S. UNDETAINED C UNDETAINED W/ FILTERRA UNDETAINED SCF (UNPAVED) 150 LF @ 3.3% SCF (UNPAVED) 40 LF @ 7.5% 17,787.0 SF 7,443.0 SF 1,146.6 SF TOTAL: IMPERVIOUS: PERVIOUS: DA 10 570 26,376.6 SF 17,461.1 SF 8,915.5 SF 572 #9 a UNDETAINED CONTRIBUTING AREA: POROUS PAVEMENT: ROOF AREA: POROUS PAVEMENT RATIO: Tc = 7.4 MIN TOTAL: IMPERVIOUS: PERVIOUS: DA 9 578 FOWLE R UNDETAINED DA #8 CLUBHOUSE TOTAL MOTOR VEHICLE SURFACE AREA 2.92 606 608 598 580 604 34,022.4 SF 15,545.0 SF 11,475.4 SF 61,042.8 SF 38,256.5 SF 22,786.3 SF 600 598 602 104,455.3 SF 45,777.6 SF 58,677.7 SF UNDETAINED W/ FILTERRA DA #7 CONTRIBUTING AREA: POROUS PAVEMENT: ROOF AREA: POROUS PAVEMENT RATIO: Tc = 8.6

61,042.8 SF 38,256.5 SF 22,786.3 SF 600 598 602 104,455.3 SF 45,777.6 SF 58,677.7 SF UNDETAINED W/ FILTERRA DA #7 CONTRIBUTING AREA: POROUS PAVEMENT: ROOF AREA: POROUS PAVEMENT RATIO: Tc = 8.6 MIN TOTAL: IMPERVIOUS: PERVIOUS: 546 548 554 556 558 560 SCF (UNPAVED) 60 LF @ 6.0% 540 542 594 596 7.0 UNDETAINED ROAD 'D' UNDETAINED MOTOR VEHICLE SURFACE TO FILTERRAS 7,988.9 SF 598 59 SHEET FLOW (GRASS, DENSE) 100 LF @ 6.0% C TOTAL: IMPERVIOUS: PERVIOUS: DA 8 596 GF: 616 PIPE FLOW 685 LF @ 2.5 FT/SEC SHEET FLOW (GRASS, BUIL DENSE) DING A.2 FF: 602 .0 59 LF @ 2.0% GF:579.0 DA 7 POA #2 UNDETAINED UNDETAINED 600 602 C 610 SCF (GRASS) 20 LF @ 3.5 % 600 Know what's below. 49,050.0 SF DA 6 B 602 C ILDI NG BU BUILDING SHEET FLOW (GRASS) 100 LF @ 3.3% 572 Tc = 10.5 MIN TOTAL: TOTAL: IMPERVIOUS: PERVIOUS: IMPERVIOUS: 41,523.5 SF PERVIOUS: 7,526.5 SF CONTRIBUTING AREA: 9,877.2 SF POROUS PAVEMENT: 12,268.7 SF ROOF AREA: 26,904.1 SF POROUS PAVEMENT RATIO: 2.99 Tc = 5.5 MIN DA 4 CONTRIBUTING AREA: POROUS PAVEMENT: ROOF AREA: POROUS PAVEMENT RATIO: Tc = 1.8 MIN 566 DA 2 568 2.98 570 46,607.8 SF 43,167.8 SF 3,440.0 SF 572 16,410.0 SF 5,500.0 SF UNDETAINED W/ FILTERRA 570 TOTAL: IMPERVIOUS: PERVIOUS: DA 5 534 538 596 SHEET FLOW (PAVED) 70 LF @ 2.0% 574 112,433.6 SF 30,173.4 SF 82,260.2 SF 147,571.0 SF 114,590.0 SF 110,386.1 SF IMPERVIOUS: PERVIOUS: ROOF AREA: 21,910.0 SF 6,824.4 SF 15,085.6 SF 540 544 546 2 592 CONTRIBUTING AREA: POROUS PAVEMENT: POROUS PAVEMENT RATIO: Tc = 8.3 MIN TOTAL: IMPERVIOUS: PERVIOUS: 534 536 538 540 546 544.5 57 600 598 PIPE FLOW 2.5 MIN 477 LF b #9 Tc = 14.1 MIN DA 3 532 262,161.0 SF 544 UNDETAINED 550 TOTAL: 544 556 DA 1 540 546 558 542 562 564 #2 602 594 602 604 GF:606.5 618 532 542 DA #2 544.5 546 548 550 552 554 556 558 560 DA #3 DA 570 598 BUILDING A.1 FF:602.0 GF:579.0 572 B 604 FF:606 .0 GF:594 .5 604 606 606 616 612 570 POA #1 546 6 544 54 542 548 544 558 534 546 548 562 DOG PARK 580 536 DA #1 574 FF:563.0 #1 DA 568 596 A 604 606 606 614 568 550 560 562 564 560 576 FF:564.0 564 578 564 566 564 552 564 566 C 572 562 DA #1 590 C 600 DA #5 A DA #6 612 588 574 D 560 570 582 FF:564.0 566 8 580 566 554 560 564 56 SCF (UNPAVED) 425 LF @