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| Title | Alderwood Wastewater Treatment Plant - October 26-27, 1992 | |||
| Month-Year Published | July 1993 | |||
| Online Availability |
2631 kilobytes, requires version 4.0 or later of Adobe Acrobat Reader Software get Acrobat Reader
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| Short Description |
A Class II Inspection was conducted at the Alderwood Water District's Wastewater Treatment Plant in October 1992. Level of treatment and wastewater flow rates were acceptable during the inspection. The plant's discharge was well within the NPDES permit effluent limits. However, influent BOD5 loading exceeded the plant's design capacity and influent TSS was at the design capacity. Planned hookups within the Alderwood Water District service area to the Metro North Creek trunk line, will reduce influent loadings to the treatment plant. Bioassays indicated only limited toxicity of the chlorinated effluent to some test organisms. Sediment bioassays demonstrated no toxic effects. (Also see abstract below) | |||
| Publication Number | 93-e56 | |||
| Author(s) | Stasch, P. | |||
| Print Availability |
Not maintained in stock. Copy must be made from archive version.
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| Number of pages | 23 pp. + app. (55 total) | |||
| Keywords | bioassay, BOD5, creek, effluent, flow, laboratory, NPDES, sediment, toxicity, TSS, wastewater treatment plant, water | |||
| Subject Waterbodies |
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| Abstract | Long Description |
A Class II Inspection was conducted at the Alderwood Water District's Wastewater Treatment Plant in October 1992. Level of treatment and wastewater flow rates were acceptable during the inspection. The plant's discharge was well within the NPDES permit effluent limits. However, influent BOD5 loading exceeded the plant's design capacity and influent TSS was at the design capacity. Planned hookups within the Alderwood Water District service area to the Metro North Creek trunk line, will reduce influent loadings to the treatment plant. Bioassays indicated only limited toxicity of the chlorinated effluent to some test organisms. Sediment bioassays demonstrated no toxic effects. The Alderwood Laboratory received accreditation as a result of the system audit conducted in conjunction with this inspection. |
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