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r � r <br /> Monitoring Well Detail <br /> PROJECT NUMBER 1813G BORING /WELL NO,nj-30 <br /> PROJECT NAME -_ Dupont/Lodi <br /> -- TOP OF CASING ELEV. 3`1.34 <br /> COUNTY San Joaquin GROUND SURFACE ELEV.__L2.02 <br /> WELL PERMIT NO. 87--3860 DATUM City of Lodi <br /> i <br /> won <br /> i <br /> *• 'i <br /> EXPLORATORY BORINC <br /> a. Total depth 50.5 fL <br /> b. Diameter <br /> 10 <br /> Drilling method hollow stem au <br /> Cl <br /> h <br /> WELL CONSTRUCTION <br /> c_ Casing length 50ft <br /> .. Material sch 40 PVC <br /> i <br /> d. Diameter _ 4 in <br /> a c e. Depth to top perforations 40 ft- <br /> i <br /> 7 f. Perforated length 10 <br /> i <br /> Perforated interval from 50 to-i-0-ft. <br /> f ?: Perforation type machine slat <br /> � :•:fir. :^�; <br /> Perforation size 0.020 inch <br /> Surfac (2-0) 2 <br /> S• a sea[ fL <br /> • " Seal material concrete <br /> •: ' • ': j h: Backfill (35.5-2) 33,5ft <br /> ... f :r•.� :.r•�•� i <br /> =:ti• Z Backfill material 5% bentonite cement <br /> .::.:=• i. Sea! (37.5-35.5) 2 ft• <br /> -" Seal material bentonite llets <br /> 'r' �•• <br /> :• • •:• j. Crave! pack (50.5-37.5) 13 � <br /> Pack material #2/12 sand <br /> • Bottom.. . m seal <br /> k Seal material N/A <br /> b I• N-9 Christy box, c mlock <br /> • wellhead with "T", lock <br /> EXCELTECH <br />