J_2024 05 09_West Orange Stormwater Management Plan

TEST BORING LOG EXPLORATION NO.: SBH-5 SHEET: 1 of 1 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.): 601.5 Date Start - Finish: 6/28/2022 - 6/28/2022 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 9 9 10 6 19 S4 6-8 4 4 3 3 7 S5 8-10 9 10 10 10 20 S6 10-12 12 14 14 15 15-17 7 7 8 10 15 17-19 17 12 15 12 27 15 S7 S8 Groundwater Depth (ft.) Time Water Depth Sample Description and Identification Fill - Reddish brown fine to coarse sand, and silt, little fine gravel (moist)(medium dense) Buried Topsoil - Very dark brown silty clay, trace fine sand, trace organics (slight organic odor) (moist)(medium) Brown clayey silt, some fine to medium sand, trace fine gravel (very moist)(very stiff) 28 Water Depth Content (ft) (%) 14.9 5 10.8 16.6 15.4 10 15 ML 20 20 S9 23-23.2 100/2" 100+ 25 11.8 7.5 10.1 10.7 - sampler refusal atop bedrock Gray fractured basalt, fair quality, very close to close joint spacing ROCK CORE RUN NO. 1: 25' to 30' REC = 100% RQD = 51% 9.0 30 7.5 6.1 4.1 4.2 ROCK CORE RUN NO. 2: 30' to 35' REC = 92% RQD = 75% - grading to fair-good quality 4.1 35 * - Hand dug to 4' 25 30 35 End of exploration at 35 feet. REMARKS 2 - MTA BORING LOG WITH CORES; 8/8/2022; 11:08:22 AM Stab. Time 6/27/22 11" Topsoil Fill - Reddish brown clayey silt, and fine to medium sand, trace fine gravel, trace roots (moist) S1 10 Symbol Hammer Fall (in.): 30 Coring Time (min/ft) Hammer Weight (lb.): 140 Date Final Boring Depth (ft.): 35 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.: 3E Remark GZA GeoEnvironmental, Inc. *