2024 03 Drainage Statement

NRCS WEB SOIL SURVEY

562760 562800 562840 562880 562920 562960 563000 74° 15' 4'' W 74° 15' 22'' W Hydrologic Soil Group—Essex County, New Jersey 563040 563080 563120 563160 40° 47' 14'' N 4515160 4515160 4515200 4515200 4515240 4515240 4515280 4515280 4515320 4515320 4515360 4515360 4515400 4515400 40° 47' 14'' N Soil Map may not be valid at this scale. 40° 47' 5'' N 40° 47' 5'' N 562800 562840 562880 562920 562960 563000 Map Scale: 1:1,910 if printed on A landscape (11" x 8.5") sheet. N Meters 100 150 Feet 0 50 100 200 300 Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 0 25 Natural Resources Conservation Service 50 Web Soil Survey National Cooperative Soil Survey 563040 563080 563120 563160 74° 15' 4'' W 74° 15' 22'' W 562760 3/1/2024 Page 1 of 4

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 3/1/2024 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 BogCc Boonton loam, 8 to 15 percent slopes, extremely stony C 1.2 13.6% BowrB Boonton - Urban land, Boonton substratum complex, red sandstone lowland, 0 to 8 percent slopes C 0.2 1.9% HanBc Haledon silt loam, 0 to 8 C percent slopes, extremely stony 2.0 24.0% YaobBc Yalesville - Boonton C Holyoke complex, 0 to 8 percent slopes, extremely stony 5.0 58.8% YaohEh Yalesville - Holyoke complex, 35 to 60 percent slopes, very rocky 0.1 1.8% 8.5 100.0% C Totals for Area of Interest Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/1/2024 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 3/1/2024 Page 4 of 4

HYDROGRAPH SUMMARY REPORTS – 2 & 10-YEAR STORM EVENTS

2024-03-01 HydroCAD Table of Contents Prepared by Dynamic Engineering Printed 3/27/2024 HydroCAD® 10.20-4b s/n 08640 © 2023 HydroCAD Software Solutions LLC TABLE OF CONTENTS Project Reports 1 Routing Diagram 2 Rainfall Events Listing 3 Area Listing (all nodes) 4 Soil Listing (all nodes) 5 Ground Covers (all nodes) 6 Pipe Listing (all nodes) 2-Year Event 7 Node Listing 9 Subcat 1S: Proposed Basin A Perv 12 Subcat 2S: Proposed Basin A Imp 14 Subcat 4S: Ex. Lot 21 Headwall Perv 16 Subcat 5S: Ex. Channel Perv 18 Subcat 6S: Prop. Lot 21 Headwall Perv 20 Subcat 7S: Prop. Lot 21 Headwall Imp 22 Subcat 15S: Ex. Channel Perv Und 25 Subcat 16S: Ex. Lot 21 Headwall Und 27 Subcat 22S: Prop. Channel Perv Und 30 Subcat 23S: Prop. Roof 32 Pond 15P: Prop. Basin A 38 Link 8L: Prop. Lot 21 Headwall Total 40 Link 11L: Proposed Total 42 Link 12L: Existing Total 44 Link 17L: Prop. Channel Total 46 Link 20L: Ex. Und Total 48 Link 21L: Ex. Dist Total 10-Year Event 50 Node Listing 52 Subcat 1S: Proposed Basin A Perv 55 Subcat 2S: Proposed Basin A Imp 57 Subcat 4S: Ex. Lot 21 Headwall Perv 59 Subcat 5S: Ex. Channel Perv 61 Subcat 6S: Prop. Lot 21 Headwall Perv 63 Subcat 7S: Prop. Lot 21 Headwall Imp 65 Subcat 15S: Ex. Channel Perv Und 68 Subcat 16S: Ex. Lot 21 Headwall Und 70 Subcat 22S: Prop. Channel Perv Und 73 Subcat 23S: Prop. Roof 75 Pond 15P: Prop. Basin A 81 Link 8L: Prop. Lot 21 Headwall Total 83 Link 11L: Proposed Total 85 Link 12L: Existing Total 87 Link 17L: Prop. Channel Total 89 Link 20L: Ex. Und Total

2024-03-01 HydroCAD Table of Contents Prepared by Dynamic Engineering Printed 3/27/2024 HydroCAD® 10.20-4b s/n 08640 © 2023 HydroCAD Software Solutions LLC 91 Link 21L: Ex. Dist Total

16S 15S Ex. Lot 21 Headwall Und Ex. Channel Perv Und 4S 5S Ex. Lot 21 Headwall Perv Ex. Channel Perv 6S 7S 1S 2S 23S Prop. Lot 21 Headwall Perv Prop. Lot 21 Headwall Imp Proposed Basin A Perv Proposed Basin A Imp Prop. Roof 8L 22S 15P Prop. Lot 21 Headwall Total 20L 21L Ex. Und Total Ex. Dist Total Prop. Channel Perv Und Prop. Basin A 17L Prop. Channel Total Subcat 12L 11L Existing Total Proposed Total Reach Pond Link Routing Diagram for 2024-03-01 HydroCAD Prepared by Dynamic Engineering, Printed 3/27/2024 HydroCAD® 10.20-4b s/n 08640 © 2023 HydroCAD Software Solutions LLC

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