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al/z5/99 11:0319183 445633 HLA SACRAKENTO 012 <br /> .—�- <br /> Monitoring Well Detail <br /> PROJECT NUMBER 1582G <br /> 14WPROjECT NAME Tri-Valley/Thornton 80RINC/WELL N0.� 44 <br /> 9 <br /> COUNTY San Joaquin TOP OF CASING MW. <br /> GROUND SURFACE ELW.10.0 7, <br /> WELL PERMIT NO. 87-2966 DATUM Y, MW-2 <br /> Top of casing set at 1( <br /> I. <br /> _ �• .. . s _ PWR&TpR BORING <br /> •.�'• 4+ <br /> a. Total depth 23.5 <br /> b. Diameter X7.5I <br /> Drilrmg method hollow stem auger <br /> d <br /> e <br /> h WELL CONSYRUCTIOiv <br /> C. Casing length <br /> Materia! sch 40 Pvc — .. <br /> d. Diameter —L--Jr, <br /> a c e, Depth to top perforations 10 <br /> f. Perforated length 12 fL <br /> •• Perforated interval fro <br /> Perform type machine slot <br /> Perforation size 0.02 inches <br /> Surface seal ( 1-0 ft - ) 1 <br /> Seal material concrete �~ <br /> h. Backfill (5-1 ft . ) 4 <br /> f .:�� :.,�:.. j �jt. <br /> • t <br /> Backfin material grout cement <br /> •"" i. Sea! (9-5 ft . ) ft <br /> 4 <br /> Seat material bentonites pellets <br /> • Nom.•.+ <br /> .N:i• -�"moi <br /> i <br /> :.?y •�����5 j. Cravel pack (227--9 ft . ) 1--3ft. <br /> •r. <br /> •. <br /> Pack material #2/12 sand <br /> k. Bottom seal <br /> .•r'�,. ft. <br /> •�•� - Seal materia! N/A <br /> A <br /> b I. F-8 Christy box, locking <br /> cover, lock <br /> E]tCELTEICN <br />