Publication Summary

Title

City of Kennewick Wastewater Treatment Plant Class II Inspection, April 1992

Month-Year PublishedMarch 1993
Online Availability
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Short Description

A Class II Inspection was conducted at the city of Kennewick Wastewater Treatment Plant on April 27-29, 1992. The effluent met National Pollutant Discharge Elimination System permit requirements.

(Also see abstract below)
Publication Number93-e12
Author(s)Das, T.
Print Availability
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Not maintained in stock. Copy must be made from archive version.
Number of pages 28 pp.
Keywords ammonia, BOD5, effluent, fecal coliform, flow, laboratory, national pollutant discharge elimination system, organochlorine, PCBs, pesticides, phosphorus, pollutant, receiving water, site investigation, toxicity, TSS, wastewater treatment plant, water, water quality
Subject Waterbodies
Columbia River
map of Washington state showing locations of subject waterbodies
Abstract Long Description

A Class II Inspection was conducted at the city of Kennewick Wastewater Treatment Plant on April 27-29, 1992. The effluent met National Pollutant Discharge Elimination System permit requirements.

The removal efficiencies for BOD5 and TSS were above the 85% requirement. BOD5 and TSS loadings, as well as flow to the plant, were well within design criteria. The effluent total ammonia concentration exceeded acute and chronic freshwater quality criteria. However, the receiving water may provide adequate dilution to minimize this toxicity. Among pesticides, three organophosphorus compounds were found present; no organochlorine pesticides or PCBs were detected. Split sample and performance evaluation sample analyses were generally acceptable, though TSS and residual chlorine (performance evaluation samples), and fecal coliform showed some discrepancies. However, an on-site review of laboratory procedures indicated a number of deficiencies that must be corrected. Other minor recommendations are included in the report.

This page last updated May 26, 2009