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State of California Department of Health Services AV randum PMemo a 70 Jim Tj OSVOld 4 S F ^''! Date "ri1 29, 1988 Senior Waste Management Engineer Subject:MCCORMICK & BAXTER SRWCF ASSESSMENT OCTOBER 1987 AND JANUARY 1988 From Jeff Van Slooten Associate Hazardous Management Specialist Task 15 of the workplan for "Completion of the Site Assessment Plan and Pollution Control and Mitigation Plan" , submitted in July 1987 and approved by the State was to determine the effects of McCormick and Baxter (M&B) discharge on the SRWCF treatment operation, sludge, and effluent quality. In October 1987, M&B submitted an interim report which contains chemical data from June 1985 through August 1987 . Included in the report was several recommendations regarding sample control for chlorinated phenols. The January 1988 report contains additional chemical data from M&B wastewater and SRWCF. The data analysis begins by stating that polynuclear aromatic hydrocarbons, (PAH) and metals from M&B process have no measurable effect on SRWCF. Data presented on PAH or metals discharged by M&B and SRWCF influent, effluent, and sludge was used to conclude this fact. SRWCF has pretreatment standards set by the EPA on September 28, 1982 . These are: Table 1 - Pretreatment Standards Chemical Concentration (mg/1) Oil and grease 100 Copper 5 Chromium 4 Arsenic 4 The only two metal analyses on storm water presented by M&B (October 1987) for metals showed levels above pretreatment standards (Table 2) . A telephone conversation with SRWCF Environmental Control disclosed that one of the samples collected from the plant process discharge line was also above pretreatment standards. While M&B discharge In Lne uczeL)ei lyo / is effective in treating pentachlorophenol waste. During the past three years, data has not been collected to determine the mass balance of pentachlorophenol from M&B to final effluent from SRWCF. A mass balance at SRWCF would be required to ensure that the treatment plant can adequately handle the waste. While M&B has modified their process to reduce waste discharged, pentachlorophenol concentrations after the initial drop have been increasing during 1987 . In addition, no decrease in the SRWCF influent concentration was seen during the canning season (July 15 through October 15) when the volume doubles. -2-