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Wright <br /> Environmental <br /> Services, Inc. F ILUCOPY <br /> Construclton ♦ E'ngineenng ♦ Remediation <br /> October 8, 1999 <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> Ms Carol Oz <br /> 304 E Weber St Third Floor <br /> Stockton, CA 95202 <br /> Subject M&M Automotive 60 E Tenth Street Tracy, CA <br /> Dear Ms Oz <br /> Per your letter dated July 23, 1999, you requested manifests for contaminated soil <br /> disposal and information regarding the contaminated groundwater analysis <br /> A total of 277 71 tons of contaminated soil was disposed at Forward Landfill for the <br /> • above referenced site Enclosed are copies of all the manifests (Attachment A) <br /> Groundwater was observed seeping into the excavation from the bottom and sidewalls at <br /> approximately 10 feet below ground surface (bgs) Samples were collected and analyzed <br /> by GeoAnalytical Laboratories, Inc (Attachment B) Prior to backfilling the excavation <br /> groundwater was pumped into the 6 900-gallon holding tank (Tank A), the quantity of <br /> water pumped to Tank A was approximately 5 300 gallons <br /> 4ttached is a letter from the City of Tracy regarding the water in Tank A (Attachment C) <br /> Per their request samples were collected on May 3, 1999 and laboratory analysis of this <br /> stored water was performed and submitted for review (Attachment D) as required. the <br /> water was filtered through activated carbon Prior to doing this. W richt calculated the <br /> carbon required to filter the contaminants from the water (Attachment E) The water was <br /> pumped through a>j-gallon carbon filter and stored in another holding tank (Tank B) <br /> Once this procedure was complete another analysis was done on the water stored in Tank <br /> B This analysis was performed on May 27, 1999 by Geo Analytical Water analysis <br /> resulted in non detectable concentration of the previously detected contaminates <br /> (Attachment F) These results were submitted to the City of Tracy for review and on June <br /> 30 1999 verbally permission was received to discharge 5 300-gallons of water into the <br /> City's holding pond for further processing with other municipal wastewater <br /> 67 E 1Oth Street . Tracy, CA 95376 <br /> 209 83- 0758 . Fax 209 832 ,152 <br /> wngnt((aunreach com L:c #651501 4-3 Has Vat ice, <br /> websit hup 11home enreach comiwnght <br />