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WELL DETAILS <br /> BORINGNVELL NO MW-20 <br /> PROJECT NUMBER U6100 <br /> TOP OF CASING ELEV 288 95' <br /> PROJECT NAME Former Arco Service Station No 6100 <br /> GROUND SURFACE ELEV 289 44' <br /> LOCATION 25775 S Patterson Pass Road,Tracy Califomca <br /> DATUM NAVD88 <br /> WELL PERMIT NO SR004513B <br /> INSTALLATION DATE December 15,2005 <br /> EXPLORATORY BORING <br /> a TOTAL DEPTH 115 fL <br /> d <br /> TOC(TOP OF CASING) b DIAMETER 10 in <br /> �1 G-5 VAULT BOX(STD) DRILLING METHOD Hollow Stem Auger <br /> WELL CONSTRUCTION <br /> i� <br /> c TOTAL CASING LENGTH 1153 ft <br /> h MATERIAL Schedule 40 PVC\� <br /> e + d DIAMETER 4 in <br /> a DEPTH TO TOP PERFORATIONS 100 ft <br /> a +� f PERFORATED <br /> c INTERVAL FROM 100 TO 115 ft <br /> . _ PERFORATION TYPE Slotted Screen <br /> PERFORATION SIZE 001 in <br /> g SURFACE SEAL 0 to 1 0 ft <br /> SEAL MATERIAL Concrete <br /> h BACKFILL ft <br /> 0 to 93 ft <br /> BACKFILL MATERIAL Neat Cement <br /> i SEAL 93 to 97 ft <br /> SEAL MATERIAL Bentonite <br /> k <br /> -- I FILTER PACK 97 toll 5 ft <br /> FILTER PACK MATERIAL #2112 Sand <br /> / k BOTTOM SEAL <br /> BENTONITE I CONCRETE <br /> ; L_.J SEAL MATERIAL NIA <br /> ��+�,, CEMENT I I SAND <br /> PERFORATION <br /> NOT TO SCALE <br /> PREPARED BY DATE <br /> REVIEWED BY DATE <br />