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Hanford Site comprehensive compliance evaluation report

Description: On September 9, 1992, the US Environmental Protection Agency (EPA) issued General Permit No. WA-R-00-OOOF, Authorization to Discharge Under the National Pollutant Discharge Elimination System (NPDES) for Storm Water Discharges Associated with Industrial Activity to the US Department of Energy, Richland Operations Office (DOE-RL). DOE-RL submitted a Notice of Intent to comply with this permit to the EPA in accordance with the General Permit requirements on October 1, 1992. On February 14, 1994, … more
Date: August 13, 1998
Creator: Haggard, R. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Bacterial chromate reduction and product characterization

Description: Bacillus subtilis reduced hexavalent chromate to trivalent chromium under either aerobic or anaerobic conditions. Reduction of CR(VI) and appearance of extracellular Cr(III) were demonstrated by electron spin resonance and spectrophotometry. Chromate reduction was stimulated more than five-fold by freeze-thawing, indicating that intracellular reductases or chemical reductants reduce chromate more rapidly than do intact cells. Moderately concentrated cells (10% pellet volume after centrifugation… more
Date: November 1, 1992
Creator: Mehlhorn, R. J.; Buchanan, B. B. & Leighton, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Technetium-99, iodine-129 and tritium in the waters of the Savannah River Site

Description: Surface water samples were collected from streams on and around the Savannah River Site, (SRS) to assess current {sup 3}H, {sup 99}Tc, and {sup 129}I concentrations in the water. The SRS is a nuclear facility operated by Westinghouse Savannah River Company for the US Department of Energy. Water quality parameters were measured at the time of collection using field portable instrumentation. The tritium activity was determined by liquid scintillation spectrometry. The isotopes, {sup 99}Tc and {su… more
Date: January 1, 1995
Creator: Beals, D. M. & Hayes, D. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A {open_quotes}zero waste{close_quotes} coolant management strategy

Description: In June of 1992 the Waste Minimization Program at Rocky Flats Plant (RFP) began a study to determine the best methods of managing water-based industrial metalworking fluids in the plant`s Tool Manufacturing Shop. The shop was faced with the challenge of managing fluids that could no longer be disposed of in the traditional manner, through the plant`s liquid process waste drains, due to a problem they, were having causing in the Liquid Waste Operations Evaporator. The study`s goal was to reduce … more
Date: April 1, 1994
Creator: Kennicott, M. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Qualitative evaluation of heavy metals in soils using portable XRF instruments

Description: Portable isotope-source energy dispersive x-ray fluorescence (XRF) analyzers can provide rapid on site screening for heavy metals in soils. Their use generally involves empirical calibration to a suite of representative soil samples spiked with a range of concentrations of the analytes of interest. In most cases, only a limited number of analytes can be measured with this approach, because of constraints imposed by the operational software and costs associated with preparing the calibration sui… more
Date: October 1, 1993
Creator: McCain, R. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation of Bacterial Detachment Rates in Porous Media

Description: The ability of published biomass detachment rate expressions to describe experimental data obtained from porous media reactors using Pseudomonas aeruginosa grown aerobically on glucose was evaluated. A first-order rate expression on attached biomass concentration best reflected effluent substrate concentration for combined data sets. Detachment rate coefficient k{sub d1} was dependent on initial substrate concentration. Simulation of porous media reactor experiments indicated that responses usi… more
Date: May 1, 1994
Creator: Peyton, B. M.; Hooker, B. S.; Skeen, R. S.; Cunningham, A. B. & Lundman, R. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Infrared signatures for remote sensing

Description: PNL`s capabilities for infrared and near-infrared spectroscopy include tunable-diode-laser (TDL) systems covering 300--3,000 cm{sup {minus}1} at <10-MHz bandwidth; a Bruker Fourier-transform infrared (FTIR) spectrometer for the near- to far-infrared at 50-MHz resolution; and a stable line-tunable, 12-w cw CO{sub 2} laser. PNL also has a beam expansion source with a 12-cm slit, which provides a 3-m effective path for gases at {approximately}10 K, giving a Doppler width of typically 10 MHz; and l… more
Date: April 1, 1994
Creator: McDowell, R. S.; Sharpe, S. W. & Kelly, J. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A combined Shewhart-CUSUM procedure with application to groundwater monitoring

Description: A combined Shewhart CUSUM statistical process control procedure is being implemented at Savannah River Site for monitoring groundwater effluent concentrations. The procedure is being developed for the Environmental Monitoring Section and will be available to yield information on remediation performance in real-time for improved decision making. The method is outlined and an application given to monitoring trichloroethylene concentrations at a Savannah River Site point of compliance well. The co… more
Date: August 1, 1994
Creator: Harris, S. P. & Tuckfield, R. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Systematic selection of off-gas treatment at the Savannah River Site

Description: At the Savannah River Site (SRS), from 1958--1985, effluent waste from the reactor fuel and target rod fabrication area (M-Area) was discharged to a settling basin. In 1981, monitoring wells detected groundwater contamination, specifically trichloroethylene and tetrachloroethylene, in the immediate vicinity of the basin. Under the auspices of Resource Conservation and Recovery Act (RCRA) the M-Area contamination must be addressed by a corrective action program until the volatile organic compoun… more
Date: May 1, 1992
Creator: McKillip, S. T. & Rehder, T. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Field screening for hexavalent chromium in soil: A fast-turnaround field method based on water extraction

Description: Sodium dichromate has been identified as a contaminant of concern at several waste sites on the Hanford Site. Although chromium standards for soil are typically stated in terms of total chrome, much of the toxicity and carcinogenicity are attributed to the hexavalent state, which typically exists as a relatively mobile anion. Investigation and removal of crushed drums potentially containing residual sodium dichromate required a field test for hexavalent chromium to support characterization and … more
Date: January 1, 1994
Creator: McCain, R. G. & Baechler, M. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Estimating an appropriate sampling frequency for monitoring ground water well contamination

Description: Nearly 1,500 ground water wells at the Savannah River Site (SRS) are sampled quarterly to monitor contamination by radionuclides and other hazardous constituents from nearby waste sites. Some 10,000 water samples were collected in 1993 at a laboratory analysis cost of $10,000,000. No widely accepted statistical method has been developed, to date, for estimating a technically defensible ground water sampling frequency consistent and compliant with federal regulations. Such a method is presented … more
Date: September 1, 1994
Creator: Tuckfield, R. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

SRS ecology: Environmental information document

Description: The purpose of this Document is to provide a source of ecological information based on the exiting knowledge gained from research conducted at the Savannah River Site. This document provides a summary and synthesis of ecological research in the three main ecosystem types found at SRS and information on the threatened and endangered species residing there.
Date: September 1993
Creator: Wike, L. D.; Shipley, R. W. & Bowers, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

UMTRA Project Site Observational Work Plan, Mexican Hat, Utah

Description: Surface cleanup activities at the Mexican Hat UMTRA processing site are nearing completion. Ground Water contamination at the Mexican Hat site is a result of uranium milling operations. The extent of residual process water has been identified, and it is limited to the uppermost aquifer in the vicinity of the site. Deeper aquifers are not affected because of an upward hydraulic gradient and the presence of a confining unit (the deeper aquifers are protected by hydrogeologic isolation). The upper… more
Date: September 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Tank characterization report for Single-Shell Tank 241-BX-107

Description: This study examined and assessed the status, safety issues, composition, and distribution of the wastes contained in the tank 241-BX-107. Historical and most recent information, ranging from engineering structural assessment experiments, process history, monitoring and remediation activities, to analytical core sample data, were compiled and interpreted in an effort to develop a realistic, contemporary profile for the tank BX-107 contents. The results of this is study revealed that tank BX-107,… more
Date: September 1994
Creator: Raphael, G. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Remedial investigation work plan for Bear Creek Valley Operable Unit 1 (S-3 Ponds, Boneyard/Burnyard, Oil Landfarm, Sanitary Landfill 1, and the Burial Grounds, including Oil Retention Ponds 1 and 2) at the Oak Ridge Y-12 Plant, Oak Ridge, Tennessee. Volume 1, Main text

Description: The intent and scope of the work plan are to assemble all data necessary to facilitate selection of remediation alternatives for the sites in Bear Creek Valley Operable Unit 1 (BCV OU 1) such that the risk to human health and the environment is reduced to acceptable levels based on agreements with regulators. The ultimate goal is to develop a final Record Of Decision (ROD) for all of the OUs in BCV, including the integrator OU. However, the initial aim of the source OUs is to develop a ROD for … more
Date: September 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Metallurgical Laboratory Hazardous Waste Management Facility groundwater monitoring report. Second quarter 1994

Description: During second quarter 1994, samples from AMB groundwater monitoring wells at the Metallurgical Laboratory Hazardous Waste Management Facility were analyzed for selected heavy metals, indicator parameters, radionuclides, volatile organic compounds, and other constituents. Three parameters exceeded standards during the quarter. As in previous quarters, tetrachloroethylene and trichloroethylene exceeded final Primary Drinking Water Standards. Total organic halogens exceeded the Savannah River Site… more
Date: September 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Baseline risk assessment for groundwater contamination at the uranium mill tailings site near Monument Valley, Arizona. Draft

Description: This baseline risk assessment evaluates potential impact to public health or the environment resulting from groundwater contamination at the former uranium mill processing site near Monument Valley, Arizona. The tailings and other contaminated material at this site are being relocated and stabilized in a disposal cell at Mexican Hat, Utah, through the US Department of Energy (DOE) Uranium Mill Tailings Remedial Action (UMTRA) Project. The tailings removal is planned for completion by spring 199… more
Date: September 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Technical assistance contractor management plan: Surface and ground water

Description: This report presents the general management structure of the Technical Assistance Contractor (TAC) for the Uranium Mill Tailings Remedial Action (UMTRA) Project. This team is a partnership of four major private subcontractors, which teamed together, are striving to be the leader in environmental restoration of uranium mining and milling operations. It will provide a pool of experts in various aspects of the technologies necessary to accomplish this goal, available to DOE to deal with mission co… more
Date: September 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Environmental assessment of remedial action at the inactive uraniferous lignite ashing sites at Belfield and Bowman, North Dakota

Description: The Uranium Mill Tailings Radiation Control Act (UMTRCA) of 1978 authorized the US Department of Energy (DOE) to perform remedial actions at Belfield and Bowman inactive lignite ashing sites in southwestern North Dakota to reduce the potential public health impacts from the residual radioactivity remaining at the sites. The US Environmental Protection Agency (EPA) promulgated standards (40 CFR 192) that contain measures to control the residual radioactive materials and other contaminated materi… more
Date: September 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Site Environmental Report summary, 1993

Description: This report describes the Fernald site mission, exposure pathways, and environmental standards and guidelines. Environmental monitoring activities measure and estimate the amount of radioactive and nonradioactive materials that may leave the site and enter the surrounding environment. This presents an overall view of the impact these activities have on the local environment and public health.
Date: June 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sampling and analysis of water from Upper Three Runs and its wetlands near Tank 16 and the Mixed Waste Management Facility

Description: In April and September 1993, sampling was conducted to characterize the Upper Three Runs (UTR) wetland waters near the Mixed Waste Management Facility to determine if contaminants migrating from MWMF are outcropping into the floodplain wetlands. For the spring sampling event, 37 wetlands and five stream water samples were collected. Thirty-six wetland and six stream water samples were collected for the fall sampling event. Background seepline and stream water samples were also collected for bot… more
Date: June 1994
Creator: Dixon, K. L. & Cummins, C. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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