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| Title | Metals Concentrations in Asarco Discharges and Receiving Waters Following Plant Closure. | |||
| Month-Year Published | October 1987 | |||
| Online Availability |
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| Short Description |
Discharges and receiving waters at and adjacent to the ASARCO facility on Commencement Bay were analyzed for trace metals to determine if ongoing discharges from the facility are elevating metals concentrations in nearshore waters. Concentrations of most metals in ASARCO outfalls were generally lower than when the plant was operating and in the range of values reported by ASARCO since the plant closed. (Also see abstract below) | |||
| Publication Number | 87-e34 | |||
| Author(s) | Stinson, M. and D. Norton | |||
| Print Availability |
Not maintained in stock. Copy must be made from archive version.
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| Number of pages | 23 pp. | |||
| Keywords | cadmium, closure, Commencement Bay, copper, lead, metals, order, outfall, Puget Sound, receiving water, water, zinc | |||
| Subject Waterbodies |
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| Abstract | Long Description |
Discharges and receiving waters at and adjacent to the ASARCO facility on Commencement Bay were analyzed for trace metals to determine if ongoing discharges from the facility are elevating metals concentrations in nearshore waters. Concentrations of most metals in ASARCO outfalls were generally lower than when the plant was operating and in the range of values reported by ASARCO since the plant closed. In addition, the total metals load (arsenic, cadmium, copper, lead, and zinc combined) discharged from the plant site has decreased by more than two orders of magnitude since operations ceased. Slight impact was observed in the receiving waters; however, no clear violations of EPA criteria for the protection of saltwater aquatic life were observed. Based on the available data, mean concentrations of arsenic, cadmium, lead, and nickel were generally in the range of values typical for Puget Sound. |
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