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AIR SPARGING WELL CONSTRUCTION INFORMATION <br /> SP-A <br /> BOLT DOWN SITE 2651 S AIRPORT WAY <br /> ' WA IERTIGHT <br /> COVER JOB NO 62400145 <br /> BORING/WELL NO SP-A <br /> ELEV GROUND SURFACE <br /> CA' r - DATE 03/14/2002 <br /> WELL CAP CHIEF UNIT CLAYEY SILT <br /> WITH LOCK <br /> ' ELEV 1 PROTECTIVE CASING YES NO <br /> DEPTH 0 5' <br /> LOCKING YES NO <br /> 2 i <br /> , <br /> ' 2 TYPE OF SURFACE SEAL (IF INSTALLED) <br /> CONCRETE <br /> ' 3 SOLID PIPE TYPE 3/4 ' PVC <br /> 3 SOLID PIPE LENGTH 70 ft <br /> JOINT TYPE SLIP/GLUED EREADED <br /> 4 TYPE OF BACKFILL CEMENT GROUT <br /> HOW INSTALLED TREMIE <br /> MFROM SURFACE <br /> 5 TYPE OF LOWER SEAL (IF INSTALLED) <br /> BENTONITE PELLETS <br /> 6 TYPE OF SECONDARY FILTER PACK <br /> ' ELEV #2/12 SAND <br /> DEPTH 60' 7 SCREEN TYPE CERAMIC DIFFUSER <br /> ' 5 SCREEN LENGTH 2 ft <br /> ELEV 6 SLOT SIZE MICRO in <br /> DEPTH 65, SCREEN DIAMETER 3 in <br /> ELEV <br /> $ TYPE OF PRIMARY FILTER PACK <br /> DEPTH' <br /> ELEV #2/12 SAND <br /> DEPTH 70' <br /> 9 DRILLING METHOD 8 25' - HSA <br /> 1 <br /> *ALL DEPTHS MEASURED FROM GROUND SURFACE <br /> $ ACTUAL DEPTHS MAY VARY FROM DEPTHS SHOWN <br /> ELEV <br /> DEPTH 72' ELEV <br /> DEPTH <br /> i' <br />