J_2024 05 09_West Orange Stormwater Management Plan

TEST BORING LOG EXPLORATION NO.: SBH-4 SHEET: 2 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. S11 Depth (ft.) Sample Blows (per 6 in.) 35-35.2 100/2" SPT Value 100+ 5.8 5.3 7.6 6.2 40 6.0 4.7 6.6 5.5 Symbol Hammer Fall (in.): 30 Coring Time (min/ft) Hammer Weight (lb.): 140 Date Final Boring Depth (ft.): 45 Groundwater Depth (ft.) Time Water Depth Stab. Time 6/27/22 Sample Description and Identification Gray fractured basalt, good quality, very close to close joint spacing ROCK CORE RUN NO. 1: 35' to 40' REC = 92% RQD = 78% ROCK CORE RUN NO. 2: 40' to 45' REC = 100% RQD = 76% Water Depth Content (ft) (%) 40 6.1 45 7.9 End of exploration at 45 feet. 45 50 55 60 70 REMARKS 2 - MTA BORING LOG WITH CORES; 8/8/2022; 11:08:22 AM 65 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.