Laserfiche WebLink
STATE OF CALIFORNIA • • GEORGE DEUKMEJIAN,Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD— <br /> CENTRAL VALLEY REGION <br /> 3443 ROUTIER ROAD <br /> SACRAMENTO,CA 95827-3098 <br /> 19 November 1990 <br /> Mr. Charles Poole <br /> Dallas Corporation <br /> P.O. Box 809046 <br /> Dallas, TX 75380-9046 <br /> 22 OCTOBER 1990 INSPECTION OF THE OVERHEAD/LODI DOOR COMPANY (0/LDC) FACILITY IN <br /> LODI, SAN JOAQUIN COUNTY <br /> Enclosed for your records is a copy of the report of my 22 October 1990 <br /> inspection of the O/LDC facility, in Lodi . During the inspection, Remediation <br /> Services, Inc. collected ground water samples from the wells at the facility, in <br /> accordance with the ground water monitoring program, Order No. 90-903. I <br /> collected split samples from two of the wells, MW-1 and MW-2, to analyze for <br /> total and hexavalent chromium (chromium VI) . This was the first quarter chromium <br /> VI was added to the monitoring program. Results show that chromium VI <br /> constitutes up to 100 percent of the total chromium in the ground water samples. <br /> Chromium VI is more mobile and toxic than chromium III and, therefore, is of <br /> greater concern. <br /> Speciation of chromium should continue in all wells as part of the monitoring <br /> program, except MW-4 and MW-6 (which have not contained chromium in the past, <br /> above detection limits) . Once sufficient information is compiled, we can <br /> determine if the existing monitoring system is adequate and if there is a need <br /> for additional downgradient monitoring wells. <br /> If you have any questions, please call me at (916) 361-5729. <br /> .)co ,-- <br /> JEAN McCUE <br /> Water Resource Control Engineer <br /> JEM:jm <br /> Enclosure <br /> cc+encl : Ms. Linda Hogg, Toxic Substances Control Division, Department of <br /> Health Services, Sacramento <br /> Mr. Ron Valinoti , San Joaquin County Environmental Health, Stockton <br /> Mr. C. Curtis Carter, Overhead Door Company, Lodi <br /> Mr. John Schweizer, Remediation Services, Inc. , Pleasanton <br />