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Toppenish Sewage Treatment Plant Class II Inspection, May 29-30, 1990

Publication number Date Published
91-e02October 1991
VIEW NOW Toppenish Sewage Treatment Plant Class II Inspection, May 29-30, 1990 (Number of pages: 45) (Publication Size: 2MB)

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Author(s) Andreasson, J. and M. Heffner
Description A Class II Inspection was conducted at the Toppenish Sewage Treatment Plant (STP) on May 29-30, 1990. The Toppenish STP is a rotating biological contractor (RBC) type secondary treatment facility. Discharge is to the Yakima River via the Toppenish Drain as regulated by NPDES Permit No. WA-002068-1. The plant appeared well maintained and well operated during the inspection. The effluent was within most permit limits.
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Keywords priority pollutant, receiving water, bioassay, biological, toxicity, river, water, NPDES, laboratory, effluent
WATERSHED Water Resource Inventory Area 37 Lower Yakima