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em or and u m" CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD • CENTRAL VALLEY REGION 3443 Routier Road Phone: (916) 361-5600 Sacramento, CA 95827-3098 ATSS: 8-495-5600 TO: Antonia Vorster FROM: Richard G. Azevedo ?" Senior Engineer Area Engineer ` R1a ENVIROIVIEsvTAL HEALTH FERMIT/SfRVICES DATE: 21 October 1987SIGNATURE: i t�J SUBJECT: CLOSURE: J-M PIPE CORPORATION, SAN JOAQUIN COUNTY J-M Pipe Corporation (J-M) has sold its Asbestos-Concrete (A/C) pipe manufacturing process to a firm in China. Disassembly of equipment for shipping is scheduled for late 1987. The purpose of the meeting was to discuss the items which must be addressed under closure along with the ongoing operation of its PVC pipe manufac- turing process. CLOSURE Essentially only three items must be addressed as part of the A/C pipe processes closure: 1. Existing landfills 2. Existing wastewater ponds 3. Possible soil contamination No underground storage tanks are reported on-site. 1. Landfills A/C pipe has been manufactured on-site since 1957. On-site landfill disposal is only reported after 1974. Some on-site disposal may have occurred previous to 1974. Landfills reportedly receive pipe rejects, encapsulated friable asbestos wastes and pond sludge. Product rejects have been classed by DHS as inert. Although pond sludge contains greater than 1% asbestos, DHS does not consider it a hazardous waste since the asbestos fibers are bound into a silica gel . Priority pollutant (8240 & 8250) and WET analysis of the pond sludge detected no organic compounds, metals were well below designated levels. Potential problems with the landfills are: o A Report of Waste Discharge was never filed. Although staff inspections in 1985 and 1986 did not note any materials in the landfill other than those mentioned above, the possibility that other materials were disposed of in the landfill can not be ruled out. o Pond sludge and/or pipe refuse may contribute TDS and minerals to the ground water.