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/ <br /> 10101:: <br /> Mn, v Roouloue: <br /> Water Boards <br /> - <br /> Central Valley Regional Water Quality Control Board EC IVED, <br /> MAY 10 2011 <br /> 9 May 2012 <br /> ENVIRONMENTAL HEALTH <br /> Ms. Eugenia Valdez PERMIT/SERVICES <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 First Quarter 2012 Monitoring Report(Report) received 8 May 2012 from your consultant ATC <br /> Associates, Inc. The Report provides the results of the 20 March 2012 limited monitoring event for monitoring <br /> well JLM-5. The following table compares JLM-5 results for the last three monitoring events. Groundwater <br /> concentrations are in micrograms per Liter. <br /> Date TPH Benzene Toluene Eth (benzene X lenes 1, 2-DCA <br /> 6/24/2011 4,100 310 19 560 330 20 <br /> 12/12/2011 1,900 49 6.3 300 70 <2.5 <br /> 3/20/2012 660 19 1.3 94 10 17 <br /> TPHg =total petroleum hydrocarbons as gasoline 1, 2-DCA= 1, 2-dichloroethane <br /> The data show a declining trend in concentrations since the May 2011 spike. The Report stated the June 2011 <br /> concentration increases may be due to the historically high water levels resulting from the exceptionally wet <br /> 2010-2011 winter and spring that flushed residual soil contamination near JLM-5. The Report recommends <br /> Regional Board staff review the Report data for either a consideration of closure or require additional <br /> monitoring. <br /> The above JLM-5 data show that groundwater concentrations are adequately attenuating, and you are to <br /> proceed with closure. Effective immediately, groundwater monitoring is suspended at this site. In order to <br /> conduct public participation and to continue the closure process, by 30 June 2012 please provide the following <br /> draft documents by e-mail attachment to my e-mail address below: <br /> ❑DA site map showing all property parcels within 250' of the site, <br /> ODA list of the property owners and tenants with the parcel numbers and mailing addresses, and <br /> ❑OA one page draft MS Word document fact sheet, summarizing the case, stating that the <br /> case is being considered for a low risk closure, and that comments must be addressed to me (use my contact <br /> information in this letter) in writing (mail or e-mail) within 30 days (provide a final due date that is 33 days after <br /> actual date mailed, to allow for postal delivery). <br /> After my review and acceptance of the above documents, you will be directed to begin the public participation <br /> mailings, and to also mail one copy of the fact sheet to me for the case file, one copy to the local water <br /> KARL E. LONDLEV ScD. P.E., @LllFl I PAMELA C. CREEDON P.E. BC[E, CXCCUTIVC O�ICER <br /> 11020$bn GROIer D"..NPOO.R.00r1n fOr(1nvfl.CA"690 wwW wRler[,pprtl5 CA[JOV,CPNrAIVAlIpy <br /> L'nt. m[o•nrn. <br />