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Karl E. Longley, ScD, P.E., Chair \-\ <br />L;c1.1 11-= W 11020 Sun Center Drive 14200, Rancho Cordova, Cal iforni• <br />Phone (916) 464-3291 • FAX (916) 464-4645 <br />hop://www.waterboards.ca.govicentralvalley JAN 2 3 2009 <br />Linda S. Adams <br />Secretary for <br />Environmental <br />Protection <br />Arnold <br />Schwa rzenegger <br />Governor <br /><IN California "egional Water Quality COP -9l Board <br />Central Valley Region <br />14 January 2009 <br />Jeff Kasper, Deputy Director <br />Port of Stockton <br />P.O. Box 2089 <br />Stockton, CA 95201-2089 <br />Chuck DeJong, Plant Manager <br />H.J. Baker & Bro. Inc. <br />P.O. Box 2089 <br />Stockton, CA 95201 <br />ENVIRONMENT HEALTH <br />PERMIPSER.VICES <br />Steven Arnett, Plant Manager <br />Martin Operating Partnership <br />P.O. Box 982 <br />Stockton, CA 95201-0982 <br />Captain Leif Gistrand <br />Metropolitan Stevedore Company <br />Pier 35 <br />San Francisco, CA 94133 <br />REVIEW OF DRAFT MONITORING WELL INSTALLATION WORK PLAN—BULK TERMINAL <br />SITES, PORT OF STOCKTON, SAN JOAQUIN COUNTY <br />The Central Valley Regional Water Quality Control Board (Board) staff has reviewed the Draft <br />Monitoring Well Installation Work Plan—Bulk Terminal Sites (Work Plan) received from the Port <br />of Stockton, Martin Operating Partnership, HJ Baker, and Metropolitan Stevedore <br />(Dischargers) on 4 December 2008. The Dischargers are regulated under Monitoring and <br />Reporting Program R5-2008-0825 (MRP), and submittal of the work plan was a requirement of <br />Section A of the MRP. <br />The Dischargers' Work Plan presents a proposal to upgrade and expand an existing <br />monitoring well system. The proposal includes the following tasks: <br />1 Replace existing monitoring wells MW-1 through MW-4 with wells MW-1s through <br />MW-4s. The Discharger stated that the existing wells may have faulty surface seals <br />and that the wells are not screened across the uppermost aquifer; <br />2 Install two shallow wells, MW-4p and MW-13p, to characterize the hydrogeology and <br />water quality in an upper peat layer; <br />lnstall monitoring well MW--13s to monitor the impact of an unlined storm water <br />retention pond on groundwater; and <br />Install monitoring well MW-14 to asses the horizontal extent of a contaminant plume in <br />the uppermost aquifer. <br />Based on review, staff concurs with the plan with the condition that staffs comments are <br />incorporated into a revised plan. Therefore, a revised Final Monitoring Well Installation Work <br />Plan that incorporates the following comments must be submitted no later than <br />14 February 2009: <br />Please revise Figure 5 to indicate that the monitoring wells will be installed into the <br />uppermost aquifer or the peat layer, as appropriate; <br />Please provide a certification statement signed by an authorized representative of each <br />of the Dischargers, including signed statements from the Port of Stockton, Martin <br />Operating Partnership, HJ Baker, and Metropolitan Stevedore. <br />California Environmental Protection Agency <br />'Recycled Paper