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DATE DRILLED 7—t8-94 LCGGED BY TOM LUTTERMAN REVIEWED BY GREG P STAHL RG NO 5023 DRILLING COMPANY WESTER DRILLER TONY JARAMILLO METHOD HOLLOW STEM AUGER BORE HOLE DIAMETER 8 INCHES DEPTH DRILLED 24 FEET DEPTH TO WATER INITIAL 13 FEET STATIC 12 FE-_T CASING TYPE PVC DIAMETER 2 INCHES SCHEDULE F480 INTERVAL O FEET TO 9 FES SCREEN TYPE PVC DIAMETER 2 INCHES SLOT SIZE O 020—INCH INTERVAL 9 FEET TO 24 FEET FILTER PACK TYPE RMC LONESTAR NO 3 SAND INTERVAL 7 FEET TO 24 FEE' SURFACE SEAL TYPE NEAT CEMENT OVER BENTONITE INTERVAL 0 FEET TO 7 FEET COMMENTS P I d Sample m Depth USCS Code Description Const ASPHALT 0 2 FEET 2 ML SILT <10% FN PRLY GRDD SND >90 FNS L—M DRY STRNGTH S—R DLTNCY v v LOW TGHNSS, N—L PLST STIFF MODERATE YLLW BRN NPO, N ORGANICS, DRY—MST WEAK CEMENTATION, HOMO CALCITE VEINLETS v v 4 s v v 0 g 6 POORLY GRADED SAND WITH SILT 90 % FN—M PRLY GRDD SND SA—SR, LS, 8 10% FNS, MODERATE YLLW BRN, NPO, N ORGANICS, MST, WEAK CEMENTATION, HOMO RG— 4 10SP—SM 0 M 05 6 12 - SILTY SAND <80 FN PRLY GRDD SND LS >20% FNS MODERATE YLLW BRN Q NPO, N ORGANICS, WET WEAK CEMENTATION, HOMO 14 RG— 3 0 MW-4— 5 5— 3 16 SM SANDY SILT 40% FN PRLY GRDD SND, 60% FNS N—L DRY STRNTH, S—R 18 DLTNCY LOW TGHNSS, N—L PLST, STIFF MODERATE YLLW BRN NPO, N ORGANICS WET. WEAK CEMENTATION, HOMO 4 20 /W.L 6 0 g 22 SILTY SAND 80% FN—C. A—R, WELL GRDD SND. LS 20% FNS MODERATE 0 3 g�7 YLLWO BRN, NPO N ORGANICS, WET, N HCL REACTION, WEAK CEMENTATION. 24 TOTAL DEPTH a 24 FEET 26 28 �RED GF'jC 30 GREGORY P. 32 ST..-YL 34 No. 5023 Y 36 J�,rFw „FFG C 38 40 /�,■„�AWu� LOG OF BORING MW-4 /t=om Vis RUIZ GROCERY STORE Working to Restore Nstaisi 4491 WEST DURHAM FERRY ROAD PROJECT: 123020.01 TRACY, CALIFORNIA