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California l6gional Water Quality Cool Board <br /> Central Valley Region <br /> Karl E. Longley, ScD, P.E., Chair ` ' <br /> Linda S. Adams Arnold <br /> 11020 Sun Center Drive#200, Rancho Cordova, California 95670-6114 <br /> Secretary for Schwarzenegger <br /> ovemor <br /> Protection G <br /> Phone (916) 464-3291 • FAX (916)464-4645 <br /> Environmental http://www,waterboards.ca.gov/centralvalley Governor <br /> 9 July 2009 u ECFR " IED <br /> JUL 14 2009 <br /> Mr. Gil Moore ENVIRONMENT HEALTH <br /> New West Petroleum, Inc. PERMIT/SERVICES <br /> 1831 16th Street <br /> Sacramento, CA 95814 <br /> STATE WATER RESOURCES CONTROL BOARD RESOLUTION NO. 2009-0042, <br /> NEW WEST PETROLEUM#1003 (SHELL BRANDED), 6437 BANNER STREET, LODI, <br /> SAN JOAQUIN COUNTY(CASE 391163) <br /> The California State Water Resources Control Board (State Water Board) adopted Resolution <br /> No. 2009-0042 requiring a reduction from quarterly groundwater monitoring to semi-annual or <br /> less frequent monitoring at all underground storage tank sites, unless site-specific conditions <br /> warrant otherwise. <br /> I reviewed your case file and semi-annual monitoring is not appropriate for your facility. This <br /> site is currently monitored under Cleanup and Abatement Order (CAO) No. R-5-2007-0709, <br /> issued 30 April 2007, and several site wells are currently monitored on a quarterly basis. <br /> Due to the recent initiation of offsite remediation to protect a sensitive receptor (San Joaquin <br /> County Service Area 31, Well 2) located 500 feet away from the MTBE plume, it is necessary to <br /> continue quarterly monitoring to evaluate the effectiveness of the recently started remedial <br /> systems and to protect the receptor. The monitoring changes approved by Regional Water <br /> Board staff letter dated 24 February 2009 for CAO R5-2007-0709 remain in effect. We will <br /> revisit this decision by evaluating further reductions in monitoring after our receipt and review of <br /> future quarterly reports. <br /> If you have any questions or comments, you may call me at (916) 464-4615 or email me at <br /> ibarton cr.waterboards.ca.gov. <br /> JAMES L.L. BARYON, P.G. <br /> Engineering Geologist <br /> UST Enforcement Unit II <br /> cc: Mr. Mark Owens, UST Cleanup Fund, SWRCB, Sacramento <br /> Ms. Margaret Lagorio, San Joaquin County Environmental Health Department, Stockton <br /> Mr. Ron Chinn, Closure Solutions, Inc., 1243 Oak Knoll Dr., Concord 94521 <br /> California Environmental Protection Agency <br /> co Recycled Paper <br />