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<br />I~ <br />U <br />I R I- I Monitori Wel 1 Com IetiOn <br />Perched Aquifer <br />- -'-- Cround Level (6682') <br />'' -Z 7-7/8" Hole cement to surface <br />9 ~' <br />150' <br />v <br />'o <br />~ IOJT 3}" used tubing <br />., <br />J _4-5/8" open hole <br />Cemented w/Dowell using 50 sxs Class: "(;" <br />32 CaC12 Cir. Cement to surface <br />Top of initial blockage (sand) <br />'''%: Top of existing blockage (sand, sampler <br />weights, bentonite) <br />392' Sand to 388' <br />~__ ;; : .~ <br />Under reamed 4-5/8" hole [0 9}" <br />Sand 395' <br />:. <br />Wa*erSampler 398'. ~ ~ Bentonite Pellets 395-394' <br />(bottom) ~~ <br />• 9 } "---- <br />Water sampler (Timpco air lift pump) set at 398'. <br />Drilled - 1981 <br />Recomoleted Aug./Sept., 1990 <br />Water sampler installed Sept., 1990 <br />Clean out attempted Aug., 1991 <br />Status Sept. - Dec., ].991 <br />• <br />Figure 4-7 <br />30 <br />