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CaliforrWegional Water Quality COrol Board _ <br /> Central Valley Region <br /> Katherine Hart, Chair <br /> 11020 Sun Center Drive,4200,Rancho Cordova,California 95670-6114 <br /> Matthew Rodriquez (916)464-3291 •FAX(916)464-4645 Edmund G.Brown Jr. <br /> Secretaryfor http,//www,waterboards.ca.gov/centmlvalley Governor <br /> Environmental Protection <br /> Ms. Eugenia Valdez 17 October 2011 <br /> J&L Market <br /> 8125 EI Dorado Street <br /> French Camp, CA 95231 <br /> DOCUMENT REVIEW, J&L MARKET, 8125 S. EL DORADO ST., FRENCH CAMP, <br /> SAN JOAQUIN COUNTY, CASE NO. 390897 <br /> 1 reviewed the Closure Report and the Semi-Annual Monitoring Report Second Quarter 2011 <br /> (Monitoring Report) received 6 October 2011 and 12 October 2011, respectively from your <br /> consultant ATC Associates, Inc. (ATC). The Closure Report was written in response to my <br /> 8 December 2010 letter(Letter) request for a closure report by 28 February 2011, and extended to <br /> 31 July 2011. The Monitoring Report provides the results of the 24 June 2011 semi-annual <br /> monitoring event, also due 30 July 2011. While the Closure Report fulfills the requirements in my <br /> Letter, the Monitoring Report does not confirm the declining concentrations trend that triggered my <br /> request for the Closure Report. The Monitoring Report data show slight increases to over an order <br /> of magnitude increase (monitoring well JLM5) in groundwater concentrations from the previous <br /> November 2010 sampling event. Groundwater concentrations are given in micrograms per Liter. <br /> Date TPHq Benzene Toluene Eth (benzene Xylenes 1,-DCA <br /> 3/26/2003 4,800 1,400 260 530 320 40 <br /> 6/3/2003 2,900 700 170 31 250 32 <br /> 12/10/2009 330 7.1 0.6 56 18 10 <br /> 6/10/2010 600 13 1.7 73 1.4 7.8 <br /> 11/11/2010 150 2.5 <0.5 29 1.4 9.5 <br /> 6/24/2011 4,100 310 19 560 <5.0 20 <br /> 1,2-DCA= 1,2-dichloroethane <br /> The Monitoring Report recommends an additional groundwater monitoring event for all of the wells <br /> in December 2011. <br /> I concur to the recommendation for a December 2011 monitoring event, with the modification <br /> limiting monitoring to only those wells that showed increasing concentrations on 24 June 2011. The <br /> monitoring report is due 30 January 2012. Additionally by 15 November 2011, please coordinate <br /> the December 2011 sampling schedule and wells with me, as I will be taking split samples with ATC; <br /> and also provide me with all records of spills, drive-offs, or tank inventory shortages that occurred <br /> between January 2010 and 24 June 2011. You may contact me regarding questions by phone at <br /> (9)16) 464-4615; o by e-mail at ibarton(a)waterboards.ca.gov. <br /> 1 l'. <br /> dames L..L. Barton, P.G. <br /> u Engineering Geologist <br /> cc: Michael Infurna, San Joaquin County Environmental Health Department, Stockton <br /> Todd Hafner, ATC Associates, Inc., 1117 Lone Palm Ave., Ste. 201, Modesto 95351 <br /> California Environmental Protection Agency <br /> Q-1 Recycled Paper <br />