J_2024 05 09_West Orange Stormwater Management Plan

TEST PIT LOG Engineers and Scientists PSE&G West Orange, NJ EXPLORATION NO.: TP-201 SHEET: 1 of 1 PROJECT NO: 26.0092704.00 REVIEWED BY: Chris McLaughlin Logged By: Alex Avelar Test Pit Location: See Plan Final Test Pit Depth (ft.): 6 Contractor: Furino and Sons, Inc. Operator: Matt Ground Surface Elev. (ft.): +605 Date Start - Finish: 1/6/2023 - 1/6/2023 Type of Excavator: Track Excavator Date Excavator Model: Depth (ft) Sample No. CAT 305E Sample Depth (ft.) 1/6/23 Stratum Depth (in.) 0-4 1 S1, T1 1.5 4-24 2 7 8 9 10 4" of 3/4" Clean gravel Fill - Dark yellowish brown (10YR, 3/4) loam, 15% gravel, moderate medium crumb, moist, cemented, abrupt smooth boundary, few fine to medium roots 60-72 S3, T3 6 Water Depth Content (ft) (%) 1 2 3 4 4 5 6 Sample Description and Identification 24-60 S2, T2 Stab.Time 6 Yellowish brown (10YR, 5/6) loam, 15% gravel, 15% cobbles, moderate medium crumb, moist, cemented, gradual smooth boundary 3 4 Groundwater Depth (ft.) Time Water Depth Dark yellowish brown (7.5YR, 4/4) loamy sand, 20% gravel, moderate medium crumb, moist, friable, few fine faint light gray (10YR, 7/2) mottles encountered throughout layer Excavator refusal atop basalt rock at 6' End of exploration at 6 feet. Isolated groundwater seepage encountered @ 6' 5 6 Single ring attempted @ 4' however soils appeared disturbed and test results were not considered to be representative of the natural soils. Tube Permeameter Test Results: <0.06 in/hr @ 1.5' >20 in/hr @ 6' 11 12 14 15 REMARKS 3B - MTA TEST PIT USDA; 1/17/2023; 10:21:02 AM 13 See Log Key for exploration of sample description and identification procedures. Stratification lines represent approximate boundaries between soil and bedrock types. Actual transitions may be gradual. Water level readings have been made at the times and under the conditions stated. Fluctuations of groundwater may occur due to other factors than those present at the times the measurements were made. Plate No.: 2A Remark GZA GeoEnvironmental, Inc.