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-31 October 2002 . r ; <br /> " AGE=NC Project No. 96-0254 <br /> s Page 7 of 7. N <br /> 1- q bentonite seal will.be formed by pouring bentonite chips Into the annulus and allowing them to settle F <br /> F <br /> on the filter-pack. Bentonite chips will be hydrated using five gallons of water: The bentonite chips 'F ; <br /> '_ �1 will be allowed to hydrate for a minimum-of one-half hour prior to grouting. F <br /> The remaining annular space will be filled to within one-foot of the ground surface with-a'cement ` <br /> I` , h grout. The'grout mixture will consist of type y Portland neat cement and not more than 6 gallons <br /> of water per 94-pound sack of cement.The-grout will be placed by pumping through a tremmie pipe k <br /> For inspection purposes, the'EHD will be notified,at least 48 hours'prior to conducting grouting , <br /> procedures A traffic rated well boxhwill be installed over the monitoring well. <br /> f{ <br /> Following completion of the monitoring wells,-well,elevations and locations will be surveyed by a <br /> l - Califdmia-licensed surveyor. t <br /> t. &: <br /> 4.5. EQUIPMENT DECONTAMINATION <br /> a t All sampling tools used for sample collection-will be thoroughly washed with a solution of Alconox <br /> and water and rinsed with:cleari water prior to use. All down-hole drilling and sampling equipment y <br /> will be pressure washed prior to.starting each boring. <br /> f1J, 41 <br /> ' y <br /> , <br /> tt <br /> r _ r <br /> .w 41 <br /> If <br /> h i 'rI I <br /> I:I <br /> Advanced GeoEnv,ronmental Inc. - <br /> - a <br />