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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION ORDER NO. 93-712 CLEANUP AND ABATEMENT ORDER FOR NESTLE BEVERAGE COMPANY SAN JOAQUIN COUNTY The California Regional Water Quality Control Board, Central Valley Region, (hereinafter Board) finds that: 1. Nestle Beverage Company (hereinafter Discharger) is a wholly owned subsidiary of the Nestle Holdings, Incorporated. The Discharger owns and operates a manufacturing plant in Ripon, San Joaquin County. The plant is in the NW-'/4 of Section 29, T2S, R8E, MDB&M and is approximately three quarters of a mile north of the Stanislaus River, as shown on Attachment A. 2. The facility was built in the 1930's and was used for the production and processing of dairy products. Since 1948, the plant has manufactured instant coffee. Beginning in 1957, trichloroethylene (TCE) was used to extract caffeine in the decaffeination process. Beginning in 1970, the use of TCE was discontinued and methylene chloride was used for this process. Since April 1986, decaffeination using volatile organic constituents (VOCs) has not occurred at this facility. The facility continues to process coffee beans. 3. The decaffeination processes used "closed loop" systems where solvents were distilled and recycled. The solvents (TCE and methylene chloride) were stored in above-ground tanks nearby the decaffeination building as shown on Attachment B. In 1986, the decaffeination plant was removed. 4. There are two on-site production supply wells, NI and N2, as shown on Attachment B. The Discharger uses approximately 0.3 million gallons per day (mgd) of water in its manufacturing process. Water is primarily supplied from N1 which pumps about 200 gallons per minute (gpm). Supply well N2 is not used. City water is used as a backup. 5. Wastewaters from the manufacturing process have historically and are currently disposed of to the industrial sewer line to the City of Ripon publicly operated treatment works (POTW) which are regulated by Waste Discharge Requirements (WDRs) Order No. 85- 120. The industrial sewer line is in the center of Industrial Avenue, off of the Nestle property. 6. In October 1985 and January 1986, the Discharger conducted sampling of NI and N2. The analytical results revealed that trichloroethylene (TCE) was present in the ground water samples. By July 1986, the Discharger had installed a granular activated carbon (GAC) system for the treatment of the production water. This action has performed as an interim remedial measure (IRM) since that time.