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' SURFACE GRADE CONCRETE APRON TRAFFIC RATED WELL COVER <br /> WATER TIGHT LOCKING CAP <br /> Grout Seal 1 to 16 feet <br /> (Schedule 40) Blank PVC Casing <br /> 0 5 To 20 Feet <br /> Bentonite Plug 16 To 18 Feet <br /> Filter Pack (#3 Sand) <br /> (Schedule 40) 0 020 Slotted PVC Screen 18 To 40 Feet <br /> 20 To 40 Feet <br /> U Iri -�1 Borlrlg Diameter <br /> Not To Scale <br /> All Measurements Depicted As Feet Below Surface Grade <br /> MONITORING WELL W-- 4dvq aced <br /> E L DESIGN M 8 <br /> GcoEnvironmental, Inc <br /> Pacific Car Wash olAarthern Cehlorom <br /> 4405 Pacific Avenue PROJECT NO ACE-96-0229 FILE Paccar7 Fill" <br /> Stockton, California FDATE 15 January 1999 DRAWN BY MAC 8 <br />