2026 02 12 Crestmont CC and Eagle Rock Ave 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 15.2 10.2 3.2 11.1 17.7 42.6 SIEVE PERCENT SPEC.* PASS? Material Description SIZE FINER PERCENT (X=NO) Strong Brown 1.5 100.0 1 87.6 .75 84.8 .5 79.0 Atterberg Limits PL= LL= PI= .375 78.3 #4 74.6 Coefficients #10 71.4

Coefficients #10 71.4 D90= 28.3802 D85= 19.3724 D60= 0.4151 #30 63.7 D50= 0.2002 D30= D15= #40 60.3 D10= C u= Cc= #60 53.1 Classification #100 46.6 USCS= AASHTO= #200 42.6 Remarks * (no specification provided) Sample Number: TP-18 ST-1 1.5' Date: 4-29-25 RSA Geolab Client: Langan Engineering Project: Eagle Rock Ave. Widening Project, West Orange, NJ Proj.#101049802 Union, New Jersey Project No: 869 Figure Tested By:

Union, New Jersey Project No: 869 Figure Tested By: SP Checked By: KP