STP766

    Development of Water Quality Criteria for Ammonia and Total Residual Chlorine for the Protection of Aquatic Life in Two Johnson County, Kansas, Streams

    Published: Jan 1982


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    Abstract

    A study was conducted to determine water quality criteria for ammonia and total residual chlorine (TRC) for the protection of aquatic life in two streams in Johnson County, Kan. The test streams selected were Mill and Cedar Creeks. The parallel streams flow into the Kansas River and share similar watershed characteristics. However, unlike Mill Creek, Cedar Creek does not receive sewage treatment plant effluents.

    Species indigenous to the streams were collected, and 96-h acute toxicity tests were conducted with ammonia and TRC. Following the laboratory work, a test was conducted in Cedar Creek whereby ammonia was introduced for 24-h. Test organisms were placed in cages in the stream, and mortalities were observed throughout the test period.

    Based on this research and other existing evidence, the conclusion was reached that if un-ionized ammonia concentrations in the two streams do not exceed 0.07 mg/litre un-ionized ammonia expressed as nitrogen (NH3-N) as a 24-h average, or 0.4 mg/litre NH3-N at any time, aquatic life in the two streams will suffer no adverse effects. Nor will these organisms be adversely affected by total residual chlorine concentrations that do not exceed 0.02 mg/litre TRC as a 24-h average, or 0.03 mg/litre TRC at any time.

    Keywords:

    water quality criteria, ammonia, total residual chlorine, bioassays, orangethroat darter, red shiner, bluegill sunfish, largemouth bass, channel catfish, crayfish, riffle beetle, 96-h median lethal concentration (LC, 50, ), acute toxicity, laboratory diluter, field study, application factors, aquatic life, drift, benthos, aquatic toxicology, hazard assessment


    Author Information:

    Hazel, RH
    Environmental director, Johnson County Unified Wastewater Districts, Shawnee Mission, Kans.

    Burkhead, CE
    Professor of civil engineering, University of Kansas, Lawrence, Kans

    Huggins, DG
    Aquatic biologist, Kansas Biological Survey, University of Kansas, Lawrence, Kans


    Paper ID: STP36732S

    Committee/Subcommittee: E35.14

    DOI: 10.1520/STP36732S


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