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GROUND ZERO ANALYSIS INC. <br /> 1714 Main Street J <br /> Escalon,California 95320 `, <br /> Telephone:(209)838-9888 RECEIVED <br /> Facsimile:(209)838-9883 <br /> April 21, 2011 <br /> APR 2 5 2011 <br /> Mr. Brian Taylor ENVIRONMENTAL H 7W <br /> Y PERMMSERVICES <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> 11020 Sun Center Drive, #200 <br /> Rancho Cordova, CA 95670 <br /> Subject: Corrective Action Plan Clarification <br /> Valley Pacific Petroleum Services, Inc., 930 Victor Road, Lodi, CA <br /> Dear Mr. Taylor: <br /> As we discussed during our recent phone call, I am writing to clarify the issue raised in your January <br /> 20, 2011 letter regarding air sparging. Despite seemingly contradictory language in certain sections <br /> of the CAP, we do propose to incorporate air sparging into the remedy before soil vapor extraction is <br /> discontinued. <br /> We also discussed our need for a letter from RWQCB explicitly stating that the CAP has been <br /> approved. This is for air board permitting issues. Can you please address this request very briefly? <br /> We are beginning the APCD permitting process and intend to specify that a Solleco 200 cfm electric <br /> catalytic oxidizer will be used as the abatement device. This unit is currently located on a client's <br /> site in San Jose. We have recommended case closure at that site and are awaiting an informal <br /> concurrence from Santa Clara County Environmental Health that we can remove the unit from the <br /> site. <br /> If you have any questions or comments concerning this report, please contact Ground Zero at your <br /> convenience. <br /> Respectfully, <br /> Ground Zero Analys' , Inc. <br /> Gregory P. Stahl, PG 5023 <br /> CA Certified Hydrogeologist 264 <br /> cc: Mr. Pat Riddle, Law Offices of Patrick D. Riddle <br /> Mr.Nathan Crum, Valley Pacific Petroleum Services, Inc. <br /> Mr. Harlin Knoll, San Joaquin County Environmental Health Department <br />