J_2024 05 09_West Orange Stormwater Management Plan

TEST BORING LOG EXPLORATION NO.: SBH-4 SHEET: 1 of 2 PROJECT NO: 26.0092704.00 REVIEWED BY: Chris McLaughlin PSE&G Engineers and Scientists West Orange Logged By: Juan Matallana Type of Rig: Track Rig Boring Location: See Plan Drilling Co.: Craig Test Borings, Inc. Driller: Bryan Rig Model: CME 55LC Drilling Method: Mud Rotary Ground Surface Elev. (ft.): 600.5 Date Start - Finish: 6/27/2022 - 6/27/2022 Hammer Type: Automatic Hammer Auger or Casing O.D./I.D Dia (in.): 6 Rock Core Size: 2 Depth (ft) No. 5 Depth (ft.) Sample Blows (per 6 in.) SPT Value 2 * S2 3 * S3 4-6 6 4 4 4 8 S4 6-8 6 4 3 2 7 S5 8-10 2 15 11 6 26 S6 10-12 5 7 8 8 CL 15 S7 15-17 3 4 5 3 Sample Description and Identification Gray-brown silty clay, some fine to medium sand, trace fine gravel (wet)(very stiff) Water Depth Content (ft) (%) 11.3 12.3 5 15.3 21.5 10 Brown clayey silt, little fine to medium sand, trace fine gravel (wet)(stiff) Reddish brown fine to coarse sand, some clayey silt, little fine to coarse gravel (wet)(loose) 9 Stab. Time 6/27/22 Fill - Brown clayey silt, some fine to coarse sand, trace fine gravel (moist)(medium to stiff) ML 15 Groundwater Depth (ft.) Time Water Depth 8" Topsoil Fill - Reddish brown fine to medium sand, and silt, trace fine gravel (moist) S1 10 Symbol Hammer Fall (in.): 30 Coring Time (min/ft) Hammer Weight (lb.): 140 Date Final Boring Depth (ft.): 45 15 SM 20 S8 20-22 10 22 20 11 - grading (dense) 42 20 Dark yellowish brown fine to coarse sand, and silt, trace fine gravel (wet)(very dense) 25 S9 S10 30-30.8 125 100/3" 100+ 25 SM Gray-brown fine to coarse gravel, little fine to coarse sand, little silt (weathered basalt)(wet)(very dense) 100+ 30 GP 35 35 * - Hand dug to 4' REMARKS 2 - MTA BORING LOG WITH CORES; 8/8/2022; 11:08:21 AM 30 25-27 24 59 60 66 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.: 3D Remark GZA GeoEnvironmental, Inc. *