V3 RESUBMISSION Stormwater Management Report Rev 2 Dated November 3 2022

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Soil Map—Essex County, New Jersey Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AO! BogBc Boonton loam, 0 to 8 percent 16 3.5% slopes, extremely stony BogCc Boonton loam, 8 to 15 percent 25 5.5% slopes, extremely stony BogDc Boonton loam, 15 to 35 5.7 12.8% percent slopes, extremely stony BouB Boonton - Urban land, Boonton 64 14.4% substratum complex, 0 to 8 percent slopes Dunc Dunellen sandy loam, 8 to 15 2.0 44% percent slopes DuuB Dunellen - Urban land, 17.5 39.3% Dunellen substratum complex, 0 to 8 percent slopes UdbonB Udorthents, Boonton 15 3.3% substratum, 0 to 8 percent slopes UddunB Udorthents, Dunellen 3.6 8.1% substratum, 0 to 8 percent slopes URBONB Urban land, Boonton 3.8 8.6% ‘substratum, 0 to 8 percent slopes Totals for Area of Interest 44.5 100.0% USDA Natural Resources Web Soil Survey 4/21/2020 Conservation Service National Cooperative Soil Survey Page 3 of 3

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Hydrologic Soil Group—Essex County, New Jersey Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI BogBc Boonton loam, 0 to 8 percent slopes, extremely stony 1.6 3.5% BogCc Boonton loam, 8 to 15 percent slopes, extremely stony 25 5.5% BogDc Boonton loam, 15 to 35, percent slopes, extremely stony 5.7 12.8% BouB Boonton - Urban land, Boonton substratum complex, 0 to 8 percent slopes 6.4 14.4% Dunc Dunellen sandy loam, 8 to 15 percent slopes 2.0 44% DuuB Dunellen - Urban land, Dunellen substratum complex, 0 to 8 percent slopes 17.5 39.3% UdbonB Udorthents, Boonton substratum, 0 to 8 percent slopes 3.3% UddunB Udorthents, Dunellen substratum, 0 to 8 percent slopes 3.6 8.1% URBONB Urban land, Boonton substratum, 0 to 8 percent slopes 3.8 8.6% Totals for Area of Interest 100.0% USDA Natural Resources == Conservation Service National Cooperative Soil Survey Web Soil Survey 4/21/2020 Page 3 of 4

Hydrologic Soil Group—Essex County, New Jersey Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long-duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, B/D, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff: None Specified Tie-break Rule: Higher USDA Natural Resources Web Soil Survey 4/21/2020 Conservation Service National Cooperative Soil Survey Page 4 of 4

Chapter 2 Estimating Runoff and Peak Part 650 Discharges Engineering Field Handbook NJ Supplement NEW JERSEY 24 HOUR RAINFALL FREQUENCY DATA Rainfall amounts in Inches County 1 year 2 year Syear 10year 25year S50year 100 year Atlantic 2.72 3.31 4.30 5.16 6.46 7.61 8.90 Bergen 2.75 3.34 4.27 5.07 6.28 7.32 8.47 Burlington 2.77 3.36 4.34 5.18 6.45 7.56 8.81 Camden 2.73 3.31 4.25 5.06 6.28 7.34 8.52 Cape May 2.67 3.25 4.22 5.07 6.34 7.47 8.73 Cumberland 2.69 3.27 4.25 5.09 6.37 7.49 8.76 Essex 2.85 3.44 4.40 5.22 6.44 7.49 8.66 Gloucester 2.71 3.29 4.24 5.05 6.29 7.36 8.55 Hudson 2.73 3.31 4.23 5.02 6.19 7.20 8.31 Hunterdon 2.80 3.38 4.26 5.00 6.09 7.02 8.03 Mercer 2.74 3.31 4.23 5.01 6.19 7.20 8.33 Middlesex 2.76 3.35 4.30 5.12 6.36 743 8.63 Monmouth 2.79 3.38 4.38 §.23 6.53 7.66 8.94 Morris 2.94 3.54 447 5.24 6.37 7.32 8.35 Ocean 2.81 3.42 4.45 5.33 6.68 7.87 9.20 Passaic 2.87 3.47 442 5.23 6.43 7.47 8.62 Salem 2.69 3.26 4.20 5.00 6.22 7.28 8.45 Somerset 2.76 3.34 4.25 5.01 6.15 7.13 8.21 Sussex 2.68 3.22 4.02 4.70 5.72 6.60 7.58 Union 2.80 3.39 4.35 5.17 6.42 7.49 8.69 Warren 2.78 3.34 4.18 4.89 5.93 6.83 7.82 Notes: The average point rainfall amounts listed above were developed from data contained in NOAA Atlas 14 Volume 2. Point rainfall estimates for specific locations may be obtained from the Precipitation Frequency Data Server located at http://www.nws.noaa.gov/ohd/hdsc/ For most hydrologic design procedures, the rainfall amounts listed above may be rounded to the nearest tenth of an inch. Page 1 of 2 August, 2012

Chapter 2 Estimating Runoff and Peak Discharges Part 650 Engineering Field Handbook NJ Supplement NEW JER Rainfall Distribution oe C ee AF vos Rainfall Distributions for use in S a EFH-2 and winTR55 ee SEY Regions Region D For winTR20, use site specific rainfall distributions from NOAA Atlas 14 data Uy 28 somites Page 2 of 2 August, 2012

Chapter 2 Estimating Runoff, ‘Technical Release 5i Urban Hydrology for Small Watersheds Table 2-2a — Runoff curve numbers for urban areas / Curve numbers for — Cover description hydrologic. soil group Average percent Cover type and hydrologic condition impervious area ¥ A B c D Fully developed urban areas (vegetation established) Open space (lawns, parks, golf courses, cemeteries, ete.) Poor condition (grass cover < 50%) .. 79 86 89 Fair condition (grass cover 50% to 75%) 69 79 84 Good condition (grass cover > 75%) 61 74 380 Impervious areas: Paved parking lots, roofs, driveways, etc. (excluding right-of-way) 98 98 98 98 Streets and roads Paved; curbs and storm sewers (excluding right-of-way) 98 98 98 98 Paved; open ditches (including right-of-way) 83 89 92 93 Gravel (including right-of-way) 76 85 389 OL Dirt (including right-of-way) .. 72 82 87 39 Western desert urban areas: Natural desert landscaping (pervious areas only) -! 63 17 85 88 Artificial desert landscaping (impervious weed barrier, desert shrub with 1- to 2-inch sand or gravel mulch and basin borders) .. 96 96 96, 96 Urban distric Commercial and business 85 89 92 94 95 Industrial .. 72 81 88 91 93 Residential districts by average lot size: 1/8 acre or less (town houses)... 77 85 90 92 WA acre .. 61 75 83 87 1 acre .. 57 72 81 86 1/2 acre .. 54 70 80 85 lacre .. 51 68 79 84 2 acres 46 65 7 82 Developing urban areas Newly graded areas (pervious areas only, no vegetation) . 7 86 91 94 Idle lands (CN's are determined using cover types similar to those in table 2-2c). 1 Average runoff condition, and I, + The average percent impervious area shown was used to develop the composite (N's. Other assumptions are as follows: impervious areas are directly connected to the drainage system, impervious areas have a CN of 98, and pervious areas are considered equivalent to open space in good hydrologic condition. CN's for other combinations of conditions may be computed using figure 2-3 or 2-4. 's shown are equivalent to those of pasture. Composite CN's may be computed for other combinations of open space cover type. ! Composite CN’s for natural desert landscaping should be computed using figures 2-3 or 2-4 based on the impervious area percentage (CN = 98) and the pervious area CN. The pervious area CN’s are assumed equivalent to desert shrub in poor hydrologic condition. 5 Composite CN's to use for the