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CaliforniAegional Water Quality Coprol Board46 <br /> Central Valley Region <br /> Linda S. Adams Arnold <br /> Karl E. Longley, Scl), P.E.,Chair <br /> Secreicn_rfor Sehwaraenegger <br /> Fr�rironmen�al <br /> Sacramento Main Office Governor <br /> Proiecnnn <br /> 11020 Sun Center Drive 4200,Rancho Cordova,California 95670-6114 <br /> Phone(916)464-3291 -FAX(916)464-4645 <br /> http:/Av%v%+ waterhoards.ca.-ov/centralvalley <br /> D �(��� <br /> 9 June 2008 <br /> JUN 11 2008 <br /> Mr. Curt Richards ENVII~0J,`,':� IE7,1� I HEALTH <br /> Environmental Health and Safety PERIAJIIT/SERVICES <br /> Olin Chlor Alkali Products <br /> 1186 Lower River Road <br /> P.O. Box 248 <br /> Charleston, Tennessee 37310-0248 <br /> GROUNDWATER MONITORING AND REPORTING PROGRAM R5-2008-0819 <br /> PIONEER AMERICAS LLC, 26700 SOUTH BANTA ROAD, TRACY, SAN JOAQUIN <br /> California Regional Water Quality Control Board, Central Valley Region (Regional Water <br /> Board) has enclosed the final Monitoring and Reporting Program No. R5-2008-0819 (MRP) <br /> sent draft to Pioneer Americas LLC (Pioneer) on 14 March 2008. The MRP replaces <br /> previous MRP No. R5-2007-0804 issued on 2 February 2007 for the liquid bleach production <br /> facility (Facility) at 26700 South Banta Road, Tracy, California. We understand that Pioneer <br /> has been doing business as Olin Chlor Alkali Products (Olin) since October 2007, but will <br /> continue to operate the Facility as a Pioneer plant. <br /> Background <br /> On 6 March 2007, Joe Hofbauer of Olin and Eva Hey of Secor International Incorporated <br /> (Secor) met with James Brownell of the Regional Water Board staff to discuss the status of <br /> monitoring and cleanup at the Pioneer plant. During that meeting, you discussed alternate <br /> MRP requirements including the following: <br /> 1. Discontinue sampling and abandon monitoring wells MW-4, MW-5, and MW-8. <br /> 2. Reduce the sampling frequency of Upper and Middle Horizon monitoring wells from <br /> quarterly to semiannually. <br /> J. Reduce the frequency of general mineral analyses from semiannually to annually. <br /> 4. Reduce the frequency of volatile organic compound analysis on industrial process <br /> well AP-1 from quarterly to annually. <br /> 5 Eliminate the requirement to install a new Lower Horizon monitoring well between <br /> Defense Logistics Agency (DLA) well LM151B and the Facility. <br /> Also, during the meeting you discussed Pioneer's continued use of well AP-2 for industrial <br /> process water supply even though it is now used as an onsite groundwater monitoring well. <br /> Apparently, Pioneer had continued to utilize this well because there had been problems with <br /> the performance of new supply wells Banta #1 and Banta #2, installed at the Facility in <br /> California Environmental Protection Agency <br /> %pj Reci cled Paper <br />