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STATE OF CALIFORNIA ` PETE WILSON. Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD— <br /> CENTRAL VALLEY REGION <br /> 3443 ROUTIER ROAD, SUITE A ° � <br /> SACRAMENTO. CA 95827-3098 g""'^�Y <br /> PHONE: (916) 361-5600 ,.,. <br /> FAX: (916) 361-5686 K.. <br /> 13 July 1992 <br /> J 0 L 1 6 1992 <br /> ENVIHONIVENTAL HEALTH <br /> Mr. Roy Thun, Chair PERMIT/SERVICES <br /> Stockton Terminals Technical Committee <br /> c/o ARCO Products Company <br /> P.O. Box 2570 <br /> Los Angeles, CA 90051-0570 <br /> PORT OF STOCKTON, UPDATE ON FIELD INVESTIGATION AND FREE PHASE PETROLEUM PRODUCT INTERIM <br /> REMEDIATION, SAN JOAQUIN COUNTY, CASE NO. 3020 <br /> We are in receipt of the 19 June 1992 and 1 July 1992 letters from your consultant, EMCON <br /> Associates. Our comments are presented below. <br /> The 19 June letter transmitted a revised project schedule, map, and sampling protocol . <br /> Procedures are missing for correcting ground water elevations when free phase petroleum <br /> product (FPPP) is detected on the ground water table. These procedures should be added to <br /> the discussion on ground water elevation measurements on page 3 of the section entitled <br /> Ground Water Sampling and Analysis. Monthly status reports are due on the 15t day <br /> following the reporting month. The monthly report shall include the status of the pollu- <br /> tion definition investigation, including most recent sampling results available, and <br /> status of any other actions proposed or underway that may impact any phase of the <br /> investigation. <br /> The 1 July letter stated that a sheen of FPPP was detected at three sampling locations, <br /> but that no measurable thickness of FPPP was detected in any of them. Due to the absence <br /> of FPPP, we concur that implementation of an interim FPPP remediation system is not <br /> necessary at this time. However, should monitoring indicate the presence of measurable <br /> FPPP, interim FPPP recovery via bailing or pumping must be initiated. <br /> If you have any questions, please call me at (916) 361-5650. <br /> PHILIFY S. ISORENA <br /> Sanitary Engineering Associate <br /> PSI: Idj <br /> CC: Mr. Harlin Knoll , San Joaquin County Public Health Services, Stockton <br /> Mr. Alexander Krygsman, Port of Stockton, Stockton <br /> Mr. Joe Meigs, EMCON Assoc. , San Jose <br /> Mr. Ron Grantham, Tesoro Petroleum, San Antonio, TX <br /> Mr. Fred Johnson, ST Services, Dallas, TX <br /> Mr. Steve M. Ferrara, Santa Fe Pacific Pipeline Partners , Los Angeles <br /> Mr. Michael L. Branch; Luce, Forward, Hamilton and Scripps; San Diego <br /> Mr. Richard May, The St. Paul Fire and Marine Insurance Co. , Brea <br />