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 12.3 14.3 6.1 10.1 18.2 39.0 SIEVE PERCENT SPEC.* PASS? Material Description SIZE FINER PERCENT (X=NO) Strong Brown 1.5 100.0 1 92.9 .75 87.7 .5 80.6 Atterberg Limits PL= LL= PI= .375 79.1 #4 73.4 Coefficients #10 67.3

Coefficients #10 67.3 D90= 21.4860 D85= 16.6188 D60= 0.6092 #30 59.9 D50= 0.2487 D30= D15= #40 57.2 D10= C u= Cc= #60 50.1 Classification #100 44.0 USCS= AASHTO= #200 39.0 Remarks * (no specification provided) Sample Number: TP-13 ST-1 2.5' 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