12 2026 02 12 Crestmont CC Stormwater Management Report

Particle Size Distribution Report 1½ in. 3/8 in. ¾ in. ½ in. #100 #140 #200 6 in. 3 in. 2 in. 1 in. #10 #20 #30 #40 #60 #4 100 90 80 70 PERCENT FINER 60 50 40 30 20 10 0

60 50 40 30 20 10 0 100 10 1 0.1 0.01 0.001 GRAIN SIZE - mm. % Gravel % Sand % Fines % +3" Coarse Fine Coarse Medium Fine Silt Clay 0.0 2.3 19.2 5.2 10.9 17.4 45.0 SIEVE PERCENT SPEC.* PASS? Material Description SIZE FINER PERCENT (X=NO) Brown 1 100.0 .75 97.7 .5 87.2 .375 83.7 Atterberg Limits PL= LL= PI= #4 78.5 #10 73.3 Coefficients #30 65.8

Coefficients #30 65.8 D90= 14.2152 D85= 11.0327 D60= 0.3427 #40 62.4 D50= 0.1328 D30= D15= #60 56.4 D10= C u= Cc= #100 51.1 Classification #200 45.0 USCS= AASHTO= Remarks * (no specification provided) Sample Number: TP-17B U-1 0.5-1.25' Date: 7-18-25 RSA Geolab Client: Langan Engineering Project: Eagle Rock Ave Widening, West Orange, NJ Project#101049802 Union, New Jersey Project No: 869 Figure Tested By: JK

Project No: 869 Figure Tested By: JK Checked By: KP