Stormwater Management Report Revised as of 01282026 4936 0314 8685 v2

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FIELD SOIL CLASSIFICATION SYSTEM PARTICLE SIZE IDENTIFICATION COHESIONLESS SOIL (Gravel, Sand, Silt and Combinations) Boulders 8 inch diameter or greater DENSITY Cobbles 3 to 8 inch diameter Very Loose 05 blows I ft or less Gravel Coarse -- 1 to 3 inch Loose 06 to 10 blows / ft Medium -- 1/2 to 1 inch Medium Dense .. ...11 to 30 blows / ft Fine -- 4.75 mm to 1/2 inch Dense 31 to 50 blows / ft Sand Coarse -- 2.0 mm to 4.75 mm Very Dense .. 51 blows / ft or more (dia. of pencil lead) Medium -- 0.425 mm to 2.0 mm (dia. of broom straw) COHESIVE SOIL Fine -- 0.075 mm to 0.425 mm (Clay Silt and Combinations) (dia. of human hair) Silt &Clay Smaller than 0.075 mm CONSISTENCY Very Soft 01 blow / ft or less Soft 02 to 4 blows / ft Medium Stiff 05 to 8 blows / ft RELATIVE PORTIONS Stiff 09 to 15 blows / ft Descriptive Term Percent Very Stiff 16 to 30 blows / ft Trace - tr 1 - 10 Hard 31 blows / ft or greater Some - sm 11 - 20 Adjective - ly 21 - 35 And - & 36 - 50 ROCK R.Q.D. Rock Quality 00 — 25... ... Very Poor 25 - 50% Poor 50 - 75% Fair ABBREVIATIONS 75 - 90% Good Bn -Brown 90 - 100% Excellent Gy -Gray Blk -Black Rd -Red Or -Orange HSA -Hollow Stem Auger BI -Blue SS- Split Spoon Sampler Lt -Light Coarse grained - c WOR -Weight of Rods Dk -Dark Medium grained - m WOH -Weight of Hammer Multi -Multi colored Fine grained- f

lit Spoon Sampler Lt -Light Coarse grained - c WOR -Weight of Rods Dk -Dark Medium grained - m WOH -Weight of Hammer Multi -Multi colored Fine grained- f NR - No Recovery of Sample

Particle Size Distribution Report As per ASTM D 6913 ~~ ~_ _~ ~ f° M N o oo. ono .— ~ ~ M # # # ~ eoe~~ it to # p # # # 100 I I I • I I I I I I I 90 I I I I I l I L I I I I I I • I I I I I I I I I I I I I I I I so I I I I I ~ E I I I----I- I I I I I I I I I I • I I I I 7o I I I I I I` I I w so I I 1 1 I I • I I z I I I I I I I • • I I u- I

I I z I I I I I I I • • I I u- I I I I I I I • I I Z 5o I ! I I I I I I I- ~- I I I I I I I I I I •I I I I U ~ I I I I I I I I I I I I I a 4o I I I I I I I I I r l r -r I I I I I I I I I I I I I so I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 20 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 10 I I I I I I I I I r l l r— r I I I I I I I I I I I I I I o I I I I I I I I I I I I I I 100 10 1 01 0.01 0.001 GRAIN SIZE - mm.

1 01 0.01 0.001 GRAIN SIZE - mm. %Gravel %Sand %Fines % +3" Coarse Fine Coarse Medium Fine Silt Clay 0.0 12.2 24.1 5.0 8.7 18.9 31.1 SIEVE PERCENT SPEC* PASS? Material Description SIZE FINER PERCENT (X=NO) Brown in color. silty gravel with sand 1.5 100.0 1 93.7 3/4 87.8 1/2 73.3 Atterberg Limits PL= NP LL= NV PI= NP 3/8 69.7 #4 63.7 Coefficients #8 59.5 D90= 20.7274 D85= 17.5640 D60= 2.6310 #10 58.7 D50= 0.4243 D30= D15= #16 56.0 D10= Cu= Cc= #30 52.5 Classification #50 46.7 USCS= GM AASHTO= A-2-4(0) #100 38.2 #200 31.1

CS= GM AASHTO= A-2-4(0) #100 38.2 #200 31.1 Remarks Sample was collected on 08/21/24 and tested on 08/26/24. In-Situ %MC=10.9 F.M.=3?d * (no specification provided) Location: B-1 Sample Number: S-1 Depth: 2'-4' Date: 08/26/2024 ANS CONSULTANTS INC. client: GomesManagement Project: 625 Northfield Avenue, West Orange, NJ Block 159.04, Lot # 1.01, 1.02 & 1.03 South Plainfield, New Jersey Project No: ANV-6549 Figure 1 F 1

Particle Size Distribution Report As per ASTM D 6913 __ ~_ _~ o o o 000 o~ o +d, co~ pp fo~ ~O f+7 N . r ~ ~ M ~ # ~ 3t ~ 3k # ik # 100 I I I I I I I I I 90 I I I I I I I I I I I I I I I I I I • I I I I I I I I I 80 I I ~ I I I I I I I I I I I I I I I I I I I I I I I I I • I I I I I I 70 • ~ I I I I I s0 I I~ I I Z I I I I I I •~ ~- I I I I I I I • I I I Z 50 I I l a I I I • I I I I I I I I I I I • I I I I v I I I

I I I I I I I I I I • I I I I v I I I I I I I I I I I I I 40 I I I I I I I I I I I I I I d I I I I I I I I I I • I I I 3o I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 20 I I I I I I I I I I I I I ~. I I I I I I I I I I I I I I I I I I I I I I I I I I I I 10 I I I I I I I I I I I I I I I I I I I I I I I I I I I I o I I I I I I I I I I I I I I 100 10 1 01 0.01, 0.001 GRAIN SIZE - mm. %Gravel %Sand %Fines % +3" Coarse Flne Coarse Medium Fine

%Fines % +3" Coarse Flne Coarse Medium Fine Stlt Clay 0.0 17.5 22.9 8.4 9.6 22.5 19.1 SIEVE PERCENT SPEC:` PASS? Material Description SIZE FINER PERCENT (X=NO) Dark brown in color. silty sand with gravel 1.5 100.0 1 90.4 3/4 82.5 1/2 73.9 Atterberg Limits 3/8 69.8 PL= NP LL= NV P1= NP #4 59.6 Coefficients #8 52.7 Dgp= 25.0083 DgS= 20.9050 Dgp= 4.9198 #10 51.2 D50= 1.7641 D30= 0.1912 D15= #16 47.0 D10= Cu= Cc= #30 45.4 Classification #50 36.3 USCS= SM AASHTO= A-1-b #100 27.0 . #200 19.1 Remarks