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a r' <br /> Rwo <br /> i <br /> Monitoring Well Detail <br /> PROJECT NUMBER 15826 BORING/WELL No. MW-1 <br /> PROJECT NAME Tri-Valley/Thornton <br /> TOP OF CASING ELEv,8.97 <br /> COUNTY San Joaquin 9.71 <br /> GROUND SURFACE ELEV.� <br /> WELL PERMIT NO. 87-2966 DATUM Arbitrary, MW-2 <br /> op 6asin3 seE ar 10.00' <br /> cr• �. <br /> t <br /> EXPLORATORY BORING <br /> a. Total depth 26.5 <br /> T � <br /> b. Diameter 7.5 In. <br /> " Drilling method hollow stem auger <br /> LIM d <br /> e T. CONSTRUCTION <br /> h WELL " <br /> c. Casing length 2 5 <br /> Material sch 40 PVC <br /> �r d. Diameti�t <br /> a c e. Depth to top perforations 10 yt, <br /> i f. Perforated length 15 <br /> Perforated interval from 25 toli—oft. <br /> -. Perforation type machine slot <br /> Perforation size 0.02 in. <br /> r •: ::•�•• S- Surface seal ft. ) <br /> fL <br /> ::i:' ;'t'.• Seal material concrete <br /> h+ Backfill (5-1 ft . ) 4 <br /> Backfill material rout cement _ <br /> '�F.•..•• L Seal (9-5 ft. ) 4 ft. <br /> +•�• <br /> Seat material bentonite ellets <br /> r::: t• Gravel pack (25-9 ft. ) 16 <br /> Pack material #2/12 sand <br /> - k. Bottom seal <br /> k Seal material N A <br /> �` l• _F•-8 christy box, locking <br /> cover, lock <br /> E=ELTECH <br />