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�-a <br />Californi�egional Water Quality Cool Board> <br />` Central Valley Region <br />Karl E. Longley, ScD, P.E., Chair <br />Arnold <br />Linda S. Adams 11020 Sun Center Drive #200, Rancho Cordova, California 95670-6114 Schwarzenegger <br />Secretaryfor Phone (916) 464-3291 • FAX (916) 464-4645 Governor <br />Environmental http:// www.waterboards.ca.gov/centralvalley <br />Protection <br />16 September 2009 <br />Mr. Eric Jenks <br />Wilbur -Ellis Company <br />P.O. Box 1030 <br />Marysville, CA 95901 <br />HE G(EiDi <br />S�_ P 1 7 LOOS <br />1 i n(AoNfi a LIA \ T�1 <br />�.,�y-� to i CrV ;F5 <br />REVIEW OF THE ADDENDUM TO THE DEEPER <br />CO. ST OCKTON, SAN JOAQUOUNDWATER GN COUNTY <br />ATION <br />WORK PLAN, JOHN TAYLOR FERTILIZERS <br />Staff of the California Regional Water Quality Control Board, Central Valley Region (Central <br />Valley Water Board) has reviewed the Deeper Groundwater Investigation Work Plan (Work <br />Plan) and the Addendum to the Deeper Groundwater Investigation Work Plan (Addendum) for <br />the subject site, located at 1819 South Argonaut Street in Stockton, San Joaquin County, <br />California. The Work Plan and beAddendum were prepard on WateeBoard on behalf July and 24 August <br />consultants, and were received y the Central Valley <br />2009, respectively. <br />The objective of the Work Plan is to propose and describe tasks to further investigate deeper <br />groundwater zone by advancing CPT boring and collecting gad egr CPT groundwater <br />sangs,mwlo s. The <br />Work Plan and the Addendum propose to advance two upg <br />downgradient onsite CPT borings and seven downgradient offsite CPT borings. Grab <br />groundwater samples will be analyzed for VOCs, and 1,2,3 -TCP. <br />Central Valley Water Board concurs with the general approach of work proposed in the Work <br />Plan and the Addendum. <br />Provide at least one-week notice of field activities to allow Central Valley Water Board staff to <br />observe. If you have questions or comments, please contact Siddharth Sewalia at 916-464- <br />4653, or by E-mail at ssewalia(cDwaterboards.ca.uov <br />f; <br />Siddharth Sewalia <br />Water Resource Control Engineer <br />Private Sites Cleanup Unit <br />cc: Mr. John H. Fortuna, Geosyntec Consultants, Oakland <br />Ms. Lori Duncan, San Joaquin County Environmental Health Department, Stockton <br />ss/W:\slic dod\Seniors - Staff - Sacramento\Duncan - staff\Sid\JTF Stockton\2009 CPT WP approval.doc <br />California Environmental Protection Agency <br />CS Recycled Paper <br />