Evaluation of Biomonitoring Systems for Assessment of Contaminated Water and Sediments at U.S. Army Installations - Continuous Acute Toxicity Biomonitoring of Aberdeen Proving Ground-Edgewood Area Old O-Field Groundwater Treatment Facility Effluent.
Abstract
Old 0-Field is a hazardous waste disposal site at the Aberdeen Proving Ground-Edgewood Area, Aberdeen, Maryland, which has contaminated the underlying groundwater. The contaminated groundwater is collected and treated at the Old 0-Field Groundwater Treatment Facility (GwTF) with subsequent discharge to the Gunpowder River. An in-line automated fish ventilatory biomonitoring system was installed at the GWTF to monitor the effluent for unexpected toxicity as it is discharged. A number of out of control events (stressed fish) occurred during the study (June 23, 1995 to March 31, 1996). The total number of days the system obtained out of control responses was 21.0 d. Explanations for the out of control responses were available for 20.6 d. No obvious explanations were apparent for 0.5 d. The out of control responses occurred from (1) changes in effluent water quality; (2) power failures; or (3) a proportional diluter failure. Changes in effluent water quality accounted for 89.2% of the total out of control responses with explanation. Loss of power and a diluter malfunction accounted for 5.9% and 4.9% of the out of control responses with explanation, respectively. Out of control responses with no explanation occurred 0.2% of the time or 0.5 d during the study. No acute toxicity attributable to the GWTF effluent quality occurred during the study.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 30, 1996
- Accession Number
- ADA319417
Entities
People
- Darlene M. Tieman
- Dennis T. Burton