J_2024 05 09_West Orange Stormwater Management Plan

TEST BORING LOG EXPLORATION NO.: SBH-2 SHEET: 1 of 1 PROJECT NO: 26.0092704.00 REVIEWED BY: Chris McLaughlin 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.): 602.5 Date Start - Finish: 6/29/2022 - 6/29/2022 Hammer Type: Automatic Hammer Auger or Casing O.D./I.D Dia (in.): 6 Rock Core Size: 2 Depth (ft) No. S1 5 Depth (ft.) Sample Blows (per 6 in.) SPT Value 1 * S2 2-4 4 4 3 3 7 S3 4-6 5 5 5 6 10 S4 6-8 8 9 10 16 19 S5 8-10 20 5 7 10 12 10-12 2 2 3 4 5 10 S6 Symbol Hammer Fall (in.): 30 Coring Time (min/ft) Hammer Weight (lb.): 140 CL Date Final Boring Depth (ft.): 30 Groundwater Depth (ft.) Time Water Depth Sample Description and Identification 12" Crushed stone Fill - Reddish brown silt, and fine to medium sand, trace fine gravel (moist) Buried Topsoil - Very dark brown silty clay, trace fine sand (slight organic odor) (wet)(medium) Gray silty clay, little fine sand (very moist)(stiff) Stab. Time Water Depth Content (ft) (%) * 23.9 5 19.4 Brown silty clay, some fine to coarse sand, trace fine gravel (very moist)(very stiff) 10 - grading (wet)(medium) CL 15 S7 15-16.2 7 16 100/2" - sampler refusal atop cobbles/boulders 100+ 20 5.8 6.5 7.1 8.0 14.2 25 4.2 4.1 5.8 5.1 ROCK CORE RUN NO. 2: 25' to 30' REC = 100% RQD = 58% - grading to fair quality, close joint spacing 4.3 30 End of exploration at 30 feet. 15 20 25 30 35 * - Hand dug to 2.5' REMARKS 2 - MTA BORING LOG WITH CORES; 8/8/2022; 11:08:20 AM Gray fractured basalt, very poor quality, very close joint spacing ROCK CORE RUN NO. 1: 20' to 25' REC = 85% RQD = 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. Remark PSE&G GZA GeoEnvironmental, Inc. Plate No.: 3B