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. . r-lAF! 05 '91 16:20 R.H. 0 0 P. 7/5 <br />D. USE SLOTTED PIPE FROM THE BOTTOM OF THE WELL HOLE TO APPROXIMATELY 3 <br />FEET ABOVE THE likXIMU14 GROUNDWATER TABLE, CONSIDERING WATER TABLE <br />flUCTUATI ON. THE S15TTED PTPE SHALL BE CAPPED AT THE BOTTOM <br />L. THE BLANK PIPE SECTION ATTACHED TO <br />THE TOP OF <br />THE <br />SLOTTED <br />PIPE AND <br />EXTENDS UPWARD TO JUST BE]ODW GRADE <br />ELEVATION. <br />AVOID <br />USTNG GIIE TO <br />COUPLE THE PIPE SECTIONS; RATHER, <br />USE 111"HIREAliDED <br />SURFACE SEAL <br />1,VC <br />P.1, E, <br />OTHER <br />COUPLING METHODS WHENEVER POSSIBLE. <br />A LDCFABIZ <br />CAP <br />F5E <br />INSTALLED <br />ON TOP OF THE BLANK PIPE. <br />1-1 <br />T-A"PPH THE <br />OBSERVATION WFIT BY FLOODINC WTTH <br />Fx ONCE THE SLOTTED kND BIANK HAS 5ELN SET YN TiE FOt2j xACKPILL WITH <br />A FTLTER PACE: OF POROUS MATERIAL SUCH AS PEA GRAVEL, THE FILTER PACK <br />SHOULD BE FILLZD AlOUND THE PIPE TO AT rYAST 2 FEET ABOVE THE TOP OF <br />THE SLOTTED SECTION.,, DGI NPI BACKFILL AROUND THE PIPE WITH CLAY <br />OR OTHER 10TRIATAL WHICH WOULD !MPEDE GROUNDWATER FL,0W INTO THE <br />OBSERVATION WELL. <br />G <br />ABOVE THE FILTER PhCK, SACXPILL WTTH CLEAN, ORYLLED SOIL MAT.nIAL TO <br />APPROXIMATELY <br />2 TIC; 3 F,L,,ET BELOW GRAVE, Ald) Wll"TH A <br />SURFACE SEAL <br />OF CEMENT GROUT OR PACKED CTLJY 11 <br />0 Pl,"),EVIENl"r SURFACE <br />CONTA XINAT][0-141 <br />FR011, 'fXflLTRATTNG qNX FTLTFR PACK ANO ENTERING THE WELL. <br />1-1 <br />T-A"PPH THE <br />OBSERVATION WFIT BY FLOODINC WTTH <br />YT WATER AND THEN PUMP <br />1T OUT, THIS <br />ACTION WILL DRAW DRILLING MUD OF <br />AND FINE FARTICITS OUT <br />THE VILTER PACK, <br />IMPROVISO THE PERFORXANCE OF THE WELLx <br />1. <br />AUGURED HOLE <br />SOTL CHARACTERTSTICS WILL FE RECURDED, <br />j, <br />OBSERVAT100 "!!AS SHALL, BE PROTECTED FROM 70 TRAFFIC OR, OTHER <br />HAZARDS hND REMAIN ACCESSTELE FOR FUTORT USE AGO VBSRRVhTT0N. WHERRE <br />15CATED It! TRA.FFIC <br />AREAS, DRIVEWAY KANNOLES A01) COVERS <br />SHALL BE <br />INSTALLED,, <br />54 OBSERVATToN I MONITORING <br />1WELL _ ANQ_DlAk IT <br />& ESTABLTStea, A BENC7MARY7 AND DETERNINF THE RELATIVE ELiVATIONS AT THE TOP <br />OF EACH TEST WELL PIPE. <br />B. MONITOR THE WATER ASD DOPOHS 10 EOCH PIP0 <br />NOTE1 IT TS IMPORTANT THIT ALL MEAgUREMFNTS BE PROM THE 10P OF EACH PIPE TO <br />THE WATER AND/OR PROCUCT LEVELS TN PACK PTPF, RECORD MEASUREMENTS TO <br />THE NEAREST EH TNCH. <br />CPRODUCT SHOULDPUMPED OUT OF THP 088ERVATIODI WELIS cons -saws wilpyrarm <br />B` PRIMATURE REMOViao OF SkID PRODUC-"'.-P C. -MUSE INCORRECT <br />WELL "READINGSH <br />1. OBSERVATION WELL PIPE <br />A, CHIDU' 40 PVC PIPE (4.5" OD -.237 WALL THICXNESS) AVAILABLZ IN BOTH <br />FACTORY SLOTTED AND STANDARD PIPE WITH FITTINGS AND CAPS AVAILABLE. <br />B. SIX, EIGHT, TRNAND TWELVE INCH SCHEOUIX 40 PVC PIPE ALSO AVAILABLE WITH <br />FACTORY MACHINE SLOTS AT TWENTY THOUSkNDTHS OF AN TNCH. <br />Page 10 <br />