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MONITORING WELL INSTALLATION <br /> R E PORT" No12 <br /> Project Douglas Gas Station, Lodi, California <br /> TL 385- 124-00 Location Approx. 30 north of west <br /> Project No Installed 8y D. Diebert island <br /> Date: 7-12-85 Time: p.m. <br /> Methcd of Installation The boring is made using an 8-inch hollow stem auger. The auger is <br /> raised and the pipe is lowered through the hollow stein. The auger is then removed. <br /> Depth of i2iPe, de th of seals, and type of pipe installed is shoran on sketch ow. <br /> Type of Well Instld_ Groundwater Monitoring Well <br /> Ground Elev - — Top of Riser Elev --- <br /> CQp* SEALED/LOCKED <br /> --I D. of Riser Pipe 2" dieter <br /> L1 0'-4" I I Type of Pipe PVC Schedule 40 <br /> Lz <br /> L2— 36'-6" —Type of Backfill Around <br /> L3 11-9 I Riser 20% Bentonite <br /> I _ 80% Cement <br /> L� 32'-7:' �� � I <br /> ' Top of Seal Elev 36'-6" <br /> L5 40'-10" -�--Type of Seal Material Bentonite Pellets <br /> L6 301-011 <br /> I'7 81'-21v <br /> _ I Top of Filter Elev <br /> 38'-3" <br /> —' Type of Filter Material 5/16-inch Pea Gravel <br /> L4 Size of Openings 0.020 " <br /> La J^�---Diameter of <br /> I Tip 2-inch <br /> I l' I bottom of well Elev 70'-10" <br /> 1 <br /> 4 � <br /> 1 =ottom of Boring Elev <br /> 81f..,211 <br /> Diameter of Boring 9-inch <br /> Douglas Gas Station --ic 7-12-85 <br /> Loll, California ...'r'ROVED LIT The Twining <br /> DLD Laboratories , Inco <br />