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pqueW <br /> COUNTY OF SAN JOAQUIN THOMAS R.FLINN <br /> = .4 DEPARTMENT OF PUBLIC WORKS DEPUTY DIRECTOR <br /> •: _ :• P.O.BOX 1810-1810 E.HAZELTON AVENUE MANUEL LOPEZ <br /> STOCKTON.CALIFORNIA 95201 DEPUTY DIRECTOR <br /> �q�AFOR�`P (209)468-3000 STEVEN WINKLER <br /> FAX(209)468-2999 DEPUTY DIRECTOR <br /> HENRY M.HIRATA <br /> DIRECTOR <br /> April 15, 1999 <br /> Wendy Arano <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> 3443 Routier Road <br /> Sacramento, California 95827 <br /> SUBJECT: FOOTHILL SANITARY LANDFILL GROUNDWATER MONITORING <br /> Dear Ms. Arano: <br /> Enclosed is a copy of the First Quarter(1999)Monitoring Report for the Foothill Sanitary Landfill. The <br /> 1998 Annual Report is enclosed as Appendix G. In the future, the Annual Report will be submitted as a <br /> part of the yearly fourth quarter report. Results from the first quarter(1999) show six Volatile Organic <br /> Compound (VOC) detections in MW-3. Due to the uniformity of the concentrations and their relation to <br /> laboratory matrix spikes, the County believes that these results may be inaccurate due to laboratory error. <br /> Upon receipt of the first quarter results, the County instructed EMCON to perform a re-test of MW-3 for <br /> VOCs. The results of the re-test will be submitted to the Regional Board as soon as we receive them. <br /> This report is submitted to comply with Waste Discharge Requirements Order No. 94-258. <br /> If you have any questions,please call me at(209)468-3066. <br /> Sincerely, <br /> dt4 <br /> WE JOHNSON <br /> Associate Civil Engineer <br /> WJ:MK:rh <br /> S:\WES\FH\GWMON\l-99LET <br /> Enclosure <br /> c: Robert McClellon, REHS,Public Health Services, Environmental Health Division <br /> LA 64201 <br /> J <br />