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CaliforniaWgional Water Quality Cor*)I Board 000 <br /> Central Valley RegionKarl E.Longley,SeD,P.E.,Chair <br /> Linda S. Adams 11020 Sun Center Drive 9200.Rancho Cordova.California 9567P6114 Arnold <br /> Secreuu7+jor Phone(916)464-3291 •FAX(916)464-4645 Schwarzenegger <br /> Environmental hilp://www.waterhouds.ca.govlcentralval ley Governor <br /> Proleenon <br /> 29 April 2009 �8CE�VED <br /> Mr. Dale Gillespie APR 3 0 2009 <br /> Geweke Land Development and Marketing <br /> PO Box 1210 ENVIRONMENT HEALTH <br /> Lodi, CA 95241 PERMIT/SERVICES <br /> DOCUMENT REVIEW, CLEANUP AND ABATEMENT ORDER (CAO) NO. 93-701, <br /> GEWEKE PROPERTY, 16 SOUTH CHEROKEE LANE, LODI, SAN JOAQUIN COUNTY <br /> I reviewed the Quarterly Report— First Quarter 2009 (Report), received 23 April 2009 and submitted on <br /> behalf of Geweke Land Development and Marketing (Geweke) by your consultant Advanced <br /> GeoEnvironmental, Inc. (AGE). The Report provides the results of routine quarterly groundwater <br /> monitoring conducted 30 March 2009. The offsite monitoring well MW-9 sample result was petroleum <br /> hydrocarbons as gasoline (TPHg) at 2,400 micrograms per Liter. The Report recommends sampling <br /> MW-8, MW-9 and MW-14 during the second quarter of 2009, and preparation of a closure report. <br /> Comments: Contaminant concentrations have not rebounded after shutdown of the ozone injection <br /> groundwater treatment system in December 2008. Please prepare a closure report for submittal with <br /> the next monitoring report due 30 July 2009. Evaluate threats from vapor intrusion from residual <br /> contamination. Estimate the remaining petroleum hydrocarbon mass versus the mass treated and the <br /> time required for groundwater to reach Water Quality Objectives, based on the current trends. Upon <br /> receipt and review of the report, staff may suspend monitoring while evaluating Site closure. <br /> Also by 15 May 2009, submit by email to me, a list of all property owners, tenants and addresses within <br /> 200' of the Site, and a one page draft fact sheet.(Microsoft Word) also listing my contact information for <br /> receipt of public comments. <br /> Upon my approval, you will initiate the 30-day public comment period and send me a paper copy of the <br /> notice. Add 3 days to the due date for public comments in the notice, to allow receipt of the notice by <br /> US mail. <br /> If you have any questions you may contact me at (916) 464-4615 or by email at <br /> jbarton@waterbo//ards.ca.gov. <br /> ames L. L. Barton, P.G. <br /> cc: Mr. Mark Owens, UST Cleanup Fund, SWRCB, Sacramento <br /> Mr. Harlin Knoll, San Joaquin County Environmental Health Division, Stockton <br /> Mr. Brian Millman, Advanced GeoEnvironmental, Incorporated, Stockton <br /> California Environmental Protection Agency <br /> ca Ren rled Paper <br />