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California Ronal Water Quality Control Board <br /> a , <br /> j Central Valley Region :% <br /> e ": r <br /> Robert Schneider,Chair <br /> Terry Tamminen Sacramento Main Office Arnold Schwanenegger <br /> Secretary for Internet Address: http://www.swrcb.ca.gov/rwgcb5. Governor <br /> Environmental 11020 Sun Center Drive#200 Rancho Cordova,CA 95670-6114 <br /> Protection Phone(916)464-3291 Fax(916)464-4797 <br /> Mr. Robert Mihalovich 2 December 2004 <br /> ChevronTexaco Environmental Management Company <br /> 6001 Bollinger Canyon Road,Rm K2072 <br /> San Ramon, CA, 94583-2324 <br /> MONITORING WELL INSTALLATION WORK PLAN, 2025 W. HAZEL TON A VE., STOCKTON, <br /> SAN JOAQUIN COUNTY <br /> We have reviewed the November 2004 Monitoring Well Installation Work Plan (Work Plan) prepared <br /> by your consultant, CH2MHill. The work plan proposes to install a shallow monitoring well north of the <br /> Koppel Stockton facility in response to Central Valley Regional Water Quality Control Board (Regional <br /> Board) staff's 27 September 2004 letter requesting plume delineation to the north. <br /> Koppel proposes to install this monitoring well (MW-IOS) in June 2005, and sample this well semi- <br /> annually in the first and third quarters (Jan-March and July-September) for nitrate and ammonium <br /> pursuant to Monitoring and Reporting Program No. R5-2004-0835. The rationale for installing <br /> MW-1OSin June is to wait until the seasonally wet soils have dried sufficiently to support drilling <br /> equipment. <br /> We concur with the Work Plan as proposed. Please provide a Monitoring Well Installation Report as an <br /> Appendix t��j the Annual Groundwater Monitoring report, which is due 1 November 2005. If you have <br /> iquestid's, y may contact meat(916) 464-4680. <br /> �TERRELL <br /> Private Sites Cleanup Unit <br /> cc: Mr. Michael Infurna, San Joaquin County Public Health Services, Stockton <br /> Mr. Sheldon Nelson, ChevronTexaco ETC, San Ramon <br /> Mr. Kirk O'Reilly, Chevron Research and Technology Division, Richmond <br /> Mr. Dan Munzer,Munco Inc., Long Beach <br /> Mr. Ken Laconde, SCS Engineers, Long Beach <br /> Mr. Ozzie Moms, Cargill Fertilizer Inc., Riverview, FL <br /> Ms. Karen Baril, Cargill Fertilizer Inc.,Minneapolis,MN <br /> Mr. Greg Jason, Cargill Inc.,Wayzata, MN <br /> Mr. Karl Morthole, Morthole and Zeppetello, San Francisco <br /> Ms. Leah Goldberg,Hanson Bridgett, San Francisco <br /> Ms. Rita Koehnes,Port of Stockton, Stockton <br /> Mr. Mick Hardin, Burlinginton Northern Santa Fe Railroad, San Bernardino <br /> Ms. Alexa Stamets, CH2M Hill, Oakland <br /> Mr. Gerald Vogt, CH2M Hill,Redding <br /> California Environmental Protection Agency <br /> Recycled Paper <br />