DISCLAIMER This AbstractPacific Northwest National Laboratory's Facility Effluent Management Program characterized and monitored liquid waste streams from 300 Area buildings that are owned by the U.S. Department of Energy and are operated by Pacific Northwest National Laboratory.(a) The purpose of these measurements was to determine whether the waste streams would meet administrative controls that were put in place by the operators of the 300 Area Treated Effluent Disposal Facility. This report summarizes the data obtained between March 1994 and September 1995 on the following waters: liquid waste streams from Buildings 306, 320, 324, 325, 326, 327, 331, and 3720; treated and untreated Columbia River water (influent); and water at the confluence of the waste streams (that is, end-of-pipe).Wastewater samples were collected and analyzed for chemicals, radioactivity, and general parameters. In most cases, the concentrations of monitored parameters and constituents were below the limits specified in the waste acceptance criteria for the 300 Area Treated Effluent Disposal Facility. Periodically, levels of cyanide, metals, volatile organic compounds, phthalates, and gross alpha radiation in building effluent samples exceeded the waste acceptance criteria. However, exceedances of the waste acceptance criteria were not observed in any samples from end-of-pipe where the criteria are applicable.Although drinking water standards do not applv to facility wastewater, the U.S. Environmental Protection Agency's maximum contaminant levels were used as an additional reference for evaluating waste stream characterization and monitoring data. Most of the constituents in facility effluents were present in trace concentrations that are below the maximum contaminant levels. However, levels of nitrate and bis(2-ethylhexyl) phthalate in samples from end-of-pipe occasionally exceeded the maximum contaminant levels. Sample contamination from plastic tubing is believed to be the source of bis(2-ethylhexyl) phthalate.The characterization and monitoring data obtained during 1994 and 1995 were severely limited because the effluents were sampled only one to four times per month. Nevertheless, the results indicated the levels of contaminants in facility discharges and showed the impact of those discharges on end-of-pipe concentrations. These data were determined to be sufficient to meet the characterization requirement in the 300 Area Treated Effluent Disposal Facility's Liquid Waste Certification Program for Pacific Northwest National Laboratory facilities. iii SummaryLiquid effluent streams from eight US. Department of Energy-owned and Pacific Northwest National Laboratory-operated buildings (306, 320, 324, 325, 326, 327, 331, and 3720), end-of-pipe, and influent in the 300 Area of the Hanford Site were monitored during 1994 and 1995 for six general classes of chemical and radiological parameters. These measurements were made to characterize the waste streams and to determine whether the waste streams met a list of waste acceptance criteria ...
Pacific Northwest National Laboratory Effluent Management Services manages liquid waste streams from some of the 300 Area buildings on the Hanford Site near Richland, Washington, to ensure liquid discharges to the Columbia River are in compliance with permit requirements. The buildings are owned by the U.S. Department of Energy and operated by Pacific Norihwest National Laboratory. In fiscal year (FY) 1994 and FY 1995, three field tests were conducted to gather information that could be used to 1) increase the understanding of 300 Area building liquid waste streams based on the characterization and monitoring data collected during calendar year (CY) 1994 and CY 1995 and 2) establish imprwed methods for evaluating facility releases. The three field tests were 1) an evaluation of a continuous monitoring/event-triggered sampling system, 2) a volatile organic compound hold-time study, and 3) an investigation of the dilution and retention properties of the 300 Area process sewer. The results from the first field test showed that future characterization and monitoring of 300 Area facility liquid waste streams could benefit significantly from augmenting continuous monitoring with event-triggered sampling. Current continuousmonitoring practices &e., monitoring of pH, conductivity, and flow) cannot detect discharges of organic pollutants. Effluent control effectiveness would be enhanced by incorporating a continuous total organic carbon analyzer in the system to detect events involving releases of organic compounds. V waste stream when the dye was detected. Subsequently, the samples were analyzed by gas chromatography/mass spectrometry. Results from these tests were used to establish relationships among the chemistry of facility effluents, the physical properties of facility waste streams, and the chemistry of the waste stream at encl-of-pipe. Almost all events detected by colntinuous monitoring of pH, conductivity, and flow at 331 Buildiig occurred during regular work hours. R o patterns of waste stream events that appeared to occur on a frequent basis were identified. One pattern appeared to have a chemistry consistent with cage and glass washing activities, while the other may be associated with ongoing life sciences research. Event samples often contained con taminanit levels one to two orders of magnitude above levels observed hi CY 1994 and CY 1995 routine-monkoring samples. However, these elevated concentrations were predlicted to be less than Treated Effluent Disposal Facility waste acceptance criteria or U.S. Environmental Protection Agency maximum contaminant levels at end-of-pipe. The CY 1994 and CY 1995 routine monitoring at end-of-pipe indicated occasional releases of contaminants (e.g., nitrate) at levels significantly above their maximum con taminant levels. These levels likely resulted from releases containing contaminant levels significantly above those observed in the field test (i.e., from concentrated releases from one or more 300 Area facilities). Events resulting in releases of organic compounds may ...
This report was .prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. D IISCLAI MER Portions of this document may be illegible in electronic image products. Images are produced from the best available original document.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.