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Occidental Chemical Corporation Class II Inspection, September and December 1992

Publication number Date Published
93-e58August 1993
VIEW NOW Occidental Chemical Corporation Class II Inspection, September and December 1992 (Number of pages: 49) (Publication Size: 1MB)

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Author(s) Stasch, P.
Description A Class II Inspection was conducted in September and December to assess seasonal variation in the Occidental Chemical Corporation's discharge in Tacoma. The majority of the discharge is once-through cooling water withdrawn from the Hylebos Waterway. Inspection data found the Occidental discharge was of similar quality to that which was withdrawn from the waterway. The Occidental discharge was within the limits specified in the NPDES permit. Effluent priority pollutant organic and metal concentrations were less than the EPA acute and chronic water quality toxicity criteria for saltwater. Bioassays indicated limited toxicity of the discharge; however, the cause of the toxicity could not be isolated.
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Keywords priority pollutant, bioassay, toxicity, water, chemical, water quality, NPDES, effluent
WATERSHED Water Resource Inventory Area 10 Puyallup-White