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San Joaquin County DIRECTOR <br /> `�"t" Environmental Health Department Donna Heran,REHS <br /> ?4 K � ASSISTANT DIRECTOR <br /> ` 600 East will Street Laurie Cotulla,REHS <br /> P\1 <br /> Stockton, California 95202-3029 <br /> PROGRAM COORDINATORS <br /> .� Mike Huggins REHS, RDI <br /> Website. www.s ov.or lehil Margaret Lagorio, REHS <br /> J Robert McClelion,REHS <br /> Phone: (209)466-3420 Jeff Carruesco,REHS,RDI <br /> Fax:. (209)464-0138 Kasey Foley,RENS <br /> June 29, 2009 <br /> Dalwinder Dhoot Kashmir Singh Dhoot <br /> 15600 S. Harlan Road 5300 Penny Lane <br /> Lathrop, CA 95330 Pleasanton, CA 94588 <br /> Subject: Joe's Place Site Code: 231585 <br /> 15600 Harlan Road <br /> Lathrop, CA <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed "Quarterly <br /> Groundwater Monitoring Report, First Quarter 2009", dated May 5, 2009, prepared by Stratus <br /> Environmental, Inc. for the above subject site. <br /> The report proposed implementation of the work plan to collect soil gas data from the site <br /> during the second quarter of 2009 which has not been done. The EHD has been informed that <br /> the work should be performed during the third quarter 2009. In December 2008 the EHD <br /> informed you that a soil gas investigation should be performed and use of a fate and transport <br /> model should be considered to show how far the MTBE will migrate and when all areas of the <br /> plume of contaminated groundwater will reach the Central Valley Regional Water Quality <br /> Control Board water duality goals prior to submittal of an environmental risk assessment or <br /> submitting a closure request: Please proceed with this work so that your site can be evaluated <br /> for a No Further Action Required determination. <br /> As you may be aware the State Water Resources Control Board passed Resolution 2009-0042 <br /> on May 19, 2009, that includes a resolve to reduce quarterly monitoring at underground storage <br /> tank cleanup sites to semi-annual or less frequent unless quarterly monitoring is warranted. <br /> Therefore, the sampling of monitoring wells MW1, MW2, MW3, MW4, MW7, MW8, MW9, <br /> MW10, MW11, MW12C, MW13A1B, MW13C, MW14A, MW15A, MW15B, MW02, MW)3 and <br /> MW0-1xl can be reduced to twice a year. <br /> If you have any questions contact me at (209)468-3449; <br /> Margaret Lagorio, REHS <br /> Program Coordinator <br /> cc Jim Barton, CVRWQCB <br /> Sarah Salcedo, Stratus Environmental Inc., 3330 Cameron Park Dr. Ste 5501, Cameron <br /> Park, CA 95682 <br />