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'OpC <br /> COUNTY OF SAN JOAQUIN THOMAS R.FLINN <br /> ` DEPARTMENT OF PUBLIC WORKS DEPUTY DIRECTOR <br /> R O.BOX 1810-1810 E.HAZELTON AVENUE <br /> STOCKTON,CALIFORNIA 95201 THOMAS M.GAU <br /> 9��F�Ria <br /> (209)468-3000 DEPUTY DIRECTOR <br /> MANUEL LOPEZ FAX(209)468-2999 <br /> DIRECTOR <br /> STEVEN WINKLER <br /> DEPUTY DIRECTOR <br /> November 14, 2000 <br /> Wendy Arano <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> 3443 Routier Road, Suite A <br /> Sacramento, California 95827-3003 <br /> SUBJECT: FOOTHILL SANITARY LANDFILL GROUND WATER MONITORING <br /> Dear Ms. Arano: <br /> This is in response to your letter dated August 25, 2000, regarding groundwater monitoring at the <br /> Foothill Sanitary Landfill. In response to the detections of Trichloroethene and 1,1-Dichloroethene, in <br /> our retest, and as required by Title 27 §20420(k), the County has conducted a non-statistical <br /> Constituent of Concern scan on samples taken from MW-3. The results show small detections of <br /> Trichloroethene and 1,1-Dichloroethene. All other constituents are comparable to historic data. An <br /> amended Report of Waste Discharge proposing an Evaluation Monitoring Program will be submitted <br /> to you by the due date of November 24, 2000. <br /> Please call me at(209)468-3066 if you have any questions. <br /> Sincerely, <br /> /� <br /> MICHAEL KALISH <br /> Associate Engineer <br /> MK:NZ:vn <br /> N:\Najee\Fh\COC.LET.wpd <br /> Enclosure <br /> c: Robert McClellon, Lead Senior,RENS, Public Health Services, Environmental Health Division <br /> LA 64201 <br />