Wastewater/Storm Water Characterization and Toxicity Identification Evaluation, Sheppard Air Force Base, Texas
1991
McCoy, Richard P. | Holck, Alan R. | Acker, Anita M.
A wastewater characterization survey was conducted at Sheppard AFB TX from 22 April 1991 to 3 May 1991 by personnel from the Water Quality and Environmental Biology Functions of Armstrong Laboratory. Quantitative Data were also collected during a rain event to assess the quality of the storm water runoff from Sheppard AFB. Biomonitoring of the influent and effluent to the Wastewater Treatment Plant (WWTP) was also performed to identify the toxic fraction(s) in the wastewater causing periodic failures in biomonitoring. A qualitative odor survey was also performed to determine if the source of a pungent, onion-like odor could be identified. Measurable concentrations of industrial solvents were found in the wastewater, indicating that some industrial wastes are entering the sanitary sewer system. Phenol concentrations greater than the permitted 50 micrograms per liter were found in many of the sampling sites. The toxic fraction identified in the WWTP influent was an organic electrophile, possibly a petroleum hydrocarbon, oil, grease, or surfactant. The identity of the odor was not conclusively determined, but solids lying in the manholes are thought to be decomposing and emitting noxious gases.
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