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STATE OF CALIFORNIA • • PETE WILSON Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD— R ti <br /> CENTRAL VALLEY REGION ) <br /> 3443 ROUTIER ROAD, SUITE A p <br /> SACRAMENTO, CA 95827-3098 �° <br /> PHONE: (916) 361-5600 <br /> FAX: (916) 361-5666 <br /> Lam ` <br /> 31 May 1991 JUN 5 1991 <br /> ENVIRONMENTAL HEALTH <br /> PERMIT/SERVICES <br /> Mr. James Wang <br /> Diamond Properties <br /> 2546 Derby Drive <br /> San Ramon, CA 94583 <br /> REVIEW OF SUMMARY GROUND WATER MONITORING FOR DIAMOND PROPERTIES (CLEANUP AND <br /> ABATEMENT ORDER NO. 90-700) - 701 WEST ELEVENTH STREET - TRACY, SAN JOAQUIN <br /> COUNTY <br /> We have reviewed the Summary Report dated 30 April 1991. Your report met our <br /> requirements, however we have a few comments. First it was submitted late. <br /> The due date for quarterly reports are by 15th of the month following the <br /> calendar quarter. In this case the report should have been submitted by <br /> 15 April 1991. The next report is due by 15 July 1991. You are required to <br /> submit these reports on time. <br /> All reports submitted for review and/or comment must include a cover letter <br /> from the tank owner stating agreement or disagreement with the conclusions and <br /> recommendations in the report. <br /> This sampling event shows that all wells have non-detectable levels of BTEX <br /> and TPHg. The previous report showed low levels of Benzene and Xylene in one <br /> well . The reports states that, after the next sampling event, the data will <br /> be reviewed and a decision will be made concerning the appropriate course of <br /> action for this site. We will review your proposal with the next report. <br /> you have any questions, please call me at (916) 361-5723. <br /> PIL <br /> TAME B. MAUGHAN <br /> Water Resource Control Engineer <br /> JBM:jbm <br /> cc: Mr. Eleanor Ratliff, San Joaquin County Public Health Services <br /> Mr. Raynold I . Kablanow II, Geological Technics Inc, Modesto <br />