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| Title | Spokane River Basin Class II Inspection at the Inland Empire Paper Company Wastewater Treatment Plant | |||
| Month-Year Published | May 1994 | |||
| Online Availability |
708 kilobytes, requires version 4.0 or later of Adobe Acrobat Reader Software get Acrobat Reader
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| Short Description |
Announced Basin Class II Inspections were conducted at two municipal wastewater treatment plants (WWTPs) and three industrial WWTPs including Inland Empire Paper Company in the Spokane River basin on March 22-24, 1993. A separate inspection report was written for each discharger in the basin. This report is based on the inspection conducted at the Inland Empire Paper Company's WWTP. (Also see abstract below) | |||
| Publication Number | 94-88 | |||
| Author(s) | Das, T. | |||
| Print Availability |
Not maintained in stock. Copy must be made from archive version.
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| Number of pages | 11 pp. | |||
| Keywords | bacteria, basin, BOD5, chemical, chemical oxygen demand, copper, effluent, fecal coliform, Inspection, inspections, metals, mixing zone, pH, receiving water, river, SEPA, site investigation, Spokane River, study, total suspended solids, toxic, toxicity, treatment, TSS, waste, wastewater, wastewater treatment plant, water, water quality, zinc | |||
| Subject Waterbodies |
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| Abstract | Long Description |
Announced Basin Class II Inspections were conducted at two municipal wastewater treatment plants (WWTPs) and three industrial WWTPs including Inland Empire Paper Company in the Spokane River basin on March 22-24, 1993. A separate inspection report was written for each discharger in the basin. This report is based on the inspection conducted at the Inland Empire Paper Company's WWTP. The effluent treatment system was operating well at the time of inspection and met permit requirements for five-day biochemical oxygen demand (BOD5), total suspended solids (TSS), and pH. Effluent had very high fecal coliform counts, comprised mostly of Klebsiella. These high bacterial counts suggest possible violations of the state Class A water quality standard, even if a chronic mixing zone is provided. A number of metals, including copper and zinc, were detected in the effluent. The copper concentration exceeded both acute and chronic water quality criteria. A concurrent metals study is progressing in the Spokane River basin, and it should be consulted for insight concerning potential effluent metals toxicity to the receiving water. |
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