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GR <br /> Not roily IGplcal Cai,iullani <br /> March 12 2009 <br /> Mr. Michael Infurna <br /> San Joaquin County Environmental,Health Department <br /> K 600 East Main Street <br /> Stockton, CA 95202-3029 <br /> SUBJECT: ADDENDUM TO WORK PLAN FOR SITE ASSESSMENT AND <br /> REMEDIATION BENCH TESTS <br />' -UST Site #3 <br /> Port of Stockton <br /> Port Road.13 at G Street <br /> Stockton, California <br /> WGR Southwest, Inc.,'.Project.No. 704.PRI.03 <br /> SJCEHD Site Code #1289124 <br /> Dear Mr. Infuma: <br /> On behalf of the-Port of'Stockton (The Port), we have reviewed the San Joaquin <br /> County Environmental Health Department's (EHD) response_ letter, dated <br /> January 23, 2009, ' which . conditionally approved the Work Plan for Site <br /> Assessment and _Remediation 'Bench Test, dated February 14, 2008. This <br /> addendum addresses the conditions mentioned in the :EHD response letter and <br /> presents The Port's comments and .recommendations for regulatory approval of <br /> L' remedial actions aUthe above-referenced site (the Site). <br /> We see the following three main conditions or concerns brought up in the <br /> response letter: <br /> A. The EHD recommends that Bench-Scale Tests (BSTs) will follow the <br /> LInterstate Technology and :Regulatory Council (1TRC) guidance document <br /> and the 'Central Valley- Regional Water Quality Control `Board's <br /> _ Y 9 Y <br /> (CVRWQCB) waste discharge requirements. If these protocols are not to <br /> be adhered to, the EHD requests a copy-of the contracted laboratory's <br /> protocol so that it may be.corbpared to ITRC and CVRWQCB guidelines. <br /> B. The EHD advises that wells will not be constructed with a screen interval <br /> of more than a 10 or 15 feet. <br /> C. The EHD requires that only one of the oxidants proposed in the Work Plan <br /> be evaluated by the BST initially; if that oxidant cannot successfully be i <br /> injected without producing unacceptable byproducts, one of theother <br /> oxidants will be approved for another BST. <br /> 736.PR1.03 1 Work Plan Addendum <br /> fd <br />