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MELJUMAILY & BUTLER ASSOCIATES <br /> DA Waste Management Consultants �rTAI HEp,LTH <br /> EN F ERNIII/SER'VICES <br /> July 12, 1988 <br /> Alan Beiderman <br /> Environmental Health Department <br /> San Joaquin County Health District <br /> 1601 E. Nazelton Avenue <br /> Stockton, CA 95205 <br /> Dear Alan: <br /> Enclosed are the results of the sampling event at the <br /> Forward landfill which took place in June of this year. As <br /> you can see, most of the wells have been found to contain <br /> no contamination above drinking water standards. <br /> Two wells, however, do show anomalous concentrations of <br /> contaminates which constitute violations. The sampling of <br /> MW-4 found there to be Beene present while MW-5 detected <br /> a number of items, several of which are above acceptable <br /> standards. The source of the pollution in MW-5 may be <br /> attributed to contaminated water percolating vertically <br /> downward from the adjacent stream or, in the case of both <br /> wells, a migration of contaminates from the once active <br /> surface impoundments. The only other detected <br /> contaminate is coliform which was found in four of the <br /> wells. <br /> The laboratory doing the analysis work, Multi-Tech Labs, <br /> exceeded the holding time of the 601/602 for MW-5, which in <br /> itself is reason to resample the well. Also, they verbally <br /> indicated that there were some unidentified peaks on the <br /> run, however, did not retest the sample for 624 because the <br /> holding time had already passed. <br /> EBA proposes to resample MW-5 for the entire set of <br /> parameters previously tested, that is, all the parameters <br /> seen on the attached sheets, along with EPA 624 . We will <br /> also test MW-4 for purgeable aromatics (602) , MW-8 for <br /> metals and wells MW-7, MW-9, MW-10 for fecal coliform. In <br /> addition to these wells, we propose to sample South Little <br /> Johns Creek at a location adjacent to MW-5 and also at the <br /> west property line, testing for purgeable aromatics (602) <br /> and metals. <br /> 825 Sonoma Ave., Suite C Post Office Box 4600 Santa Rosa, California 95402 (707) 544-0784 FAX (707) 544-0866 <br /> Also Auburn, California and Las Vegas, Nevada <br />