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Kaiser Aluminum Corporation, Tacoma, Class II Inspection - April 5-6, 1993

Publication number Date Published Date Revised
93-e57April 1983April 1993
VIEW NOW Kaiser Aluminum Corporation, Tacoma, Class II Inspection - April 5-6, 1993 (Number of pages: 28) (Publication Size: 997KB)

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Author(s) Stasch, P.
Description A Class II Inspection was conducted in April 1993 at the Kaiser Aluminum and Chemical Corporation, Tacoma Reduction Plant. The facility discharges industrial process noncontact cooling water and stormwater runoff. The inspection data found Kaiser discharging a good quality effluent for the parameters analyzed. Effluent concentrations were generally within the NPDES permit limitations. With the exception of copper, effluent priority pollutant concentrations were below the marine acute and chronic EPA Water Quality Criteria. Bioassay testing documented no effluent toxicity. High levels of oil and grease were detected in the 004 storm sewer. Kaiser lacks a flow totalizer. An improved method for measuring flow should be investigated.
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Keywords priority pollutant, bioassay, toxicity, flow, water, chemical, runoff, water quality, quality, stormwater, NPDES, marine, effluent, copper, aluminum
WATERSHED Water Resource Inventory Area 10 Puyallup-White