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STATE OF CALIFORNIA PETE WILSON Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD— <br /> CENTRAL VALLEY REGION <br /> P <br /> 3443 ROUTIER ROAD, SUITE A A <br /> SACRAMENTO, CA 95827-3098 <br /> PHONE: (916) 361-5600 <br /> FAX: (916) 361-5686 <br /> Mr. Stanley S. Moore E " """ <br /> �8 <br /> ED <br /> 17,6yuary 1992 <br /> Re-Manufacturing, Inc. JAN 3 <br /> P.O. Box 8098 ENVIRONMENTAL HEALTH ENV <br /> Stockton, CA 95208 PER MIT/SERVICES <br /> INSPECTION REPORTS FOR RE-MANUFACTURING LTD. , STOCKTON, SAN JOAQUIN COUNTY <br /> Enclosed is a copy of our recent inspection reports regarding your impoundment <br /> closure activities. The reports indicate the closure is taking much longer than <br /> anticipated and in some cases is not being conducted in accordance with your approved <br /> closure plan. Specifically, we have noted the following discrepancies: <br /> 1 . The bottom portions of the clay cap have not been protected by the drainage <br /> system and top soil prior to covering with rip rap. This may allow for <br /> cracking of the protective cap or partial erosion of the clay. <br /> 2. Field permeability testing of the clay cap has not been performed in sequence <br /> as the closure is completed. This will result in disturbance of the soil <br /> cover, drainage system and filter fabric when the tests are performed. <br /> 3. Lysimeters have not been installed below the clay cap. <br /> 4. Because of the delay associated with completing the closure, the integrity of <br /> the clay cap could have been compromised by cracking due to wetting and drying <br /> periods. <br /> The above four issues must be addressed as part of the engineer certification when <br /> approval of the final closure is requested. <br /> Also noted during one of the inspections was the hauling of sand blast material from <br /> your facility. These materials are waste products and may be hazardous. Materials <br /> taken from the site must be properly characterized and disposed of at a site approved <br /> to take those wastes. <br /> If you have any questions please contact me at (916) 361-5743 or Jean McCue at <br /> (916)3`614VAUGHN___�'_� <br /> -5729. <br /> GRE <br /> G <br /> Senior Engineer <br /> GKV:jm <br /> Enclosures <br /> cc+encl . : Mr. Don Shaulis, Department of Toxic Substances Control , Sacramento <br /> Mr. Ron Valinoti , Public Health Services, San Joaquin County, Stockton <br /> Ms. Nora Kataoka, Water Work Corp. , Escalon <br />