J_2024 05 09_West Orange Stormwater Management Plan

TEST PIT LOG Engineers and Scientists PSE&G West Orange, NJ EXPLORATION NO.: TP-204 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.): 8 Contractor: Furino and Sons, Inc. Operator: Matt Ground Surface Elev. (ft.): +604 Date Start - Finish: 1/4/2023 - 1/4/2023 Type of Excavator: Track Excavator Date Excavator Model: Depth (ft) CAT 305E 1/4/23 Sample No. Sample Depth (ft.) Stratum Depth (in.) S1, T1 0.5 0-2 2-8 1 2 8-41 3 S2, T2 3 4 S3, T3 4 Groundwater Depth (ft.) Time Water Depth Stab.Time 7 Sample Description and Identification 2" of Leaf litter and topsoil Fill - Reddish brown (5YR, 4/3) sandy clay loam, 25% gravel, moderate medium crumb, moist, firm, abrupt irregular boundary, few fine to medium roots Topsoil/Fill - Dark brown (7.5YR, 3/3) loam, 15% gravel, moderate medium crumb, moist, friable, common fine to medium roots Water Depth Content (ft) (%) 1 2 3 Reddish brown (5YR, 4/4) silt loam, 15% gravel, moderate medium crumb, wet, friable, abrupt wavy boundary 4 41-66 5 6 5 S4, T4 66-96 7 8 9 10 11 12 Reddish brown (5YR, 4/3) clay loam, 15% gravel, moderate medium crumb, wet, friable 6 S5, T5 8 6 7 - excavator refusal atop boulder or possible basalt bedrock @ 8 ft. End of exploration at 8 feet. Rapid groundwater seepage encountered @ 7' 8 Single Ring Permeability Test Results: Failed to drain during presoak = <0.06 in/hr @ 4 ft. Tube Permeameter Test Results: <0.06 in/hr @ 4' <0.06 in/hr @ 6' <0.06 in/hr @ 8' 14 15 REMARKS 3B - MTA TEST PIT USDA; 1/17/2023; 10:21:03 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.: 2D Remark GZA GeoEnvironmental, Inc.