250701_42 ERW_Stormwater Report

Appendix D USGS Soil Survey Location Map Stormwater Management Report | October 18, 2024 – Revised December 20, 2024

Stormwater Management Report | October 18, 2024 – Revised December 20, 2024

563250 563320 563390 563460 563530 563600 563670 563740 563810 563880 4516430 4516430 40° 47' 47'' N 4516010 4516080 4516080 4516150 4516150 4516220 4516220 4516290 4516290 4516360 4516360 40° 47' 47'' N 74° 14' 32'' W 74° 15' 2'' W Hydrologic Soil Group—Essex County, New Jersey 4516010 Soil Map may not be valid at this scale. 40° 47' 32'' N 563320 563390 563460 563530 563600 Map Scale: 1:3,190 if printed on A landscape (11" x 8.5") sheet. N Meters 270 Feet 0 150 300 600 900 Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 0 45 Natural Resources Conservation Service 90 180 Web Soil Survey National Cooperative Soil Survey 563670 563740 563810 563880 74° 14' 32'' W 74° 15' 2'' W 563250 6/24/2024 Page 1 of 4 40° 47' 32'' N

Hydrologic Soil Group—Essex County, New Jersey MAP LEGEND Area of Interest (AOI) Area of Interest (AOI) Soils Soil Rating Polygons A A/D B B/D C C/D D Not rated or not available Soil Rating Lines A MAP INFORMATION The soil surveys that comprise your AOI were mapped at 1:12,000. C C/D D Warning: Soil Map may not be valid at this scale. Not rated or not available Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography A/D B Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. B/D Soil Survey Area: Essex County, New Jersey Survey Area Data: Version 19, Aug 29, 2023 C C/D Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. D Date(s) aerial images were photographed: 16, 2022 Not rated or not available Soil Rating Points Oct 10, 2022—Oct The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. A A/D B B/D Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/24/2024 Page 2 of 4

Hydrologic Soil Group—Essex County, New Jersey Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI BooBc Boonton silt loam, red sandstone lowland, 0 to 8 percent slopes, extremely stony C 0.6 1.7% BooCc Boonton silt loam, red sandstone lowland, 8 to 15 percent slopes, extremely stony C 8.1 22.1% BouB Boonton - Urban land, Boonton substratum complex, 0 to 8 percent slopes C 1.4 3.8% BowrB Boonton - Urban land, Boonton substratum complex, red sandstone lowland, 0 to 8 percent slopes C 1.6 4.4% BowrC Boonton - Urban land, Boonton substratum complex, red sandstone lowland, 8 to 15 percent slopes C 5.6 15.1% RNAAC Rock outcrop 0.9 2.4% USBONB Urban land, Boonton substratum - Boonton complex, 0 to 8 percent slopes 3.2 8.7% YamnBc Yalesville loam, 0 to 8 percent slopes, extremely stony C 10.2 27.7% YaohEh Yalesville - Holyoke complex, 35 to 60 percent slopes, very rocky C 5.2 14.1% 36.8 100.0% Totals for Area of Interest Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/24/2024 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 Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/24/2024 Page 4 of 4

Appendix E Geotechnical Data Report Stormwater Management Report | October 18, 2024 – Revised December 20, 2024

GEOTECHNICAL DATA REPORT (Stormwater Infiltration Testing) February 27, 2025 40 Eagle Ridge Way Block 106; Lot 20.03 Township of West Orange Essex County, New Jersey Prepared for: TheWaymaker LLC 40 Eagle Ridge Way West Orange, NJ 07052 Prepared by: _______________________________ Francisco Sanchez-Dominici New Jersey Professional Engineer License No. GE061874 _______________________________ Ahmed Elmekati New Jersey Professional Engineer License No. GE053487 Colliers Engineering & Design, Inc. 300 Tice Blvd, Suite 101 Woodcliff Lake, NJ 07677 Main: 845-352-0411 Colliersengineering.com Project No. 24006174A

Table of contents Introduction ........................................................................................................................................................................ 1 Available Information ........................................................................................................................................................ 1 Site and Project Description ............................................................................................................................................ 1 Stormwater Subsurface Exploration ............................................................................................................................. 1 Subsurface Conditions ..................................................................................................................................................... 1 USDA Web Soil Survey..................................................................................................................................................... 1 Soil Stratification ............................................................................................................................................................. 2 General Groundwater Observations ............................................................................................................................. 2 In-situ Infiltration Testing ................................................................................................................................................. 2 Proposed Stormwater Facilities ..................................................................................................................................... 2 Measured Field Intake Rate ............................................................................................................................................ 2 Closing .................................................................................................................................................................................. 3 Limitations ........................................................................................................................................................................... 3 Test Pit Logs

Limitations ........................................................................................................................................................................... 3 Test Pit Logs ........................................................................................................................................................................ 2 In-situ Infiltration Test Result .......................................................................................................................................... 3 GEOTECHNICAL DATA REPORT | February 27, 2025