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Monitoring of the water levels in the wetlands of Fourmile Branch near the F and H Areas of SRS: September 1997 to December 1998

Description: A network of twenty-three piezometers was used to measure hydraulic head in the water-table aquifer along the groundwater outcrop (i.e. seepline) at the F- and H-Area seeplines. The piezometers were installed to assess potential impacts of the F- and H-Area Groundwater Remediation Waste Treatment Units on the riparian wetland system located between the former F- and H-Area seepage basins and Fourmile Branch.
Date: June 16, 2000
Creator: Halverson, N.V.
Partner: UNT Libraries Government Documents Department

Surface and subsurface soils at the Pond B dam: July 1998

Description: Pond B, 685-13G, is an inactive reactor cooling impoundment built in 1961 on the Savannah River Site (SRS). Between 1961 and 1964, Pond B received R-Reactor cooling water discharges that were contaminated with {sup 137}Cs, {sup 90}Sr and plutonium. Though the pond has not been used since 1964, radionuclides from the contaminated cooling water remain in the water and in the surface sediments of the pond. The current proposal to fix and repair the Pond B dam structure includes installing a new drain system and monitoring equipment. The dam will be reinforced with additional previous material on the downstream face of the dam. The objectives of this report are to describe the sampling methodology used during the July 1998 sampling event at the downstream face of the Pond B dam and in Pond B, present the results of the sampling event, and compare, where possible, these results to related risk-based standards.
Date: December 3, 1999
Creator: Halverson, N.V.
Partner: UNT Libraries Government Documents Department

Results of Monitoring Water Levels in the Wetlands of Fourmile Branch near the F and H Areas of SRS: January to December 2002

Description: Since 1996, a network of piezometers has been used to measure hydraulic head in the water-table aquifer along the groundwater outcrops (i.e. seeplines) near the F- and H-Areas. The piezometers were installed near the seeplines to assess potential impacts of the F- and H-Area Groundwater Remediation Wastewater Treatment Units (WTUs) on the riparian wetlands located between the former F- and H-Area seepage basins and Fourmile Branch. The piezometers were installed in areas expected to be most impacted by the remediation system. Eight additional piezometers were added to the network in 2002 in two locations near the F-Area seepline and two locations near the H-Area seepline, extending coverage further downstream from the seepage basins. The goals of the Permit governing the WTUs are to (1) achieve a 70 percent reduction in the mass flux of tritium to Fourmile Branch within five years of Corrective Action Plan approval and reduce the discharge of other contaminants (metals and radionuclides other than tritium) to Fourmile Branch to levels less than the Groundwater Protection Standards, and (2) reduce the discharge at the seepline of all contaminants to levels that are less than the GWPS by July 31, 2010. Because of the potential for WTU operation to dry portions of the nearby wetland areas, the purpose of the piezometer network was: (1) to establish baseline hydraulic head data for the water-table aquifer at the F- and H-Area seeplines prior to startup of the groundwater extraction/injection remediation system (completed), and (2) to observe the effects of the remediation system on the hydraulic head after system start-up (ongoing).
Date: November 6, 2003
Creator: Halverson, N.V.
Partner: UNT Libraries Government Documents Department

Analysis of soil and water at the Four Mile Creek seepline near the F H areas of SRS

Description: Several soil and water samples were collected along the Four Mile Creek (FMC) seepline at the F H Areas of the Savannah River Site. The samples were analyzed for concentrations of metals, radionuclides, and inorganic constituents. The results of the analyses are summarized below for the soil and water samples.
Date: June 20, 1990
Creator: Haselow, J.S.; Harris, M.; Looney, B.B.; Halverson, N.V. & Gladden, J.B.
Partner: UNT Libraries Government Documents Department

Analysis of soil and water at the Four Mile Creek seepline near the F H Areas of SRS

Description: Until 1988, solutions containing sodium hydroxide, nitride acid, low levels of radionuclides (mostly tritiated water) and some metals were discharged to unlined seepage basins at the F and H Areas of the Savannah River Site (SRS) as part of normal operations (Killian et al, 1987a,b). The basins are now being closed according to the Resource Conservation and Recovery Act (RCRA). As part of the closure, a Part B Post-Closure Care Permit is being prepared. The information included in this report will fulfill some of the data requirements for that Part B permit. Several soil and water samples were collected along the Four Mile Creek (FMC) seepline at the F H Areas of the Savannah River Site. The samples were analyzed for concentrations of metals, radionuclides, and inorganic constituents. The goal of the work reported herein is to document the impacts from the basins of FMC has been completed in a phased approach.
Date: June 20, 1990
Creator: Haselow, J.S.; Harris, M.; Looney, B.B.; Halverson, N.V. & Gladden, J.B.
Partner: UNT Libraries Government Documents Department

Analysis of soil and water at the Four Mile Creek seepline near the F&H Areas of SRS

Description: Until 1988, solutions containing sodium hydroxide, nitride acid, low levels of radionuclides (mostly tritiated water) and some metals were discharged to unlined seepage basins at the F and H Areas of the Savannah River Site (SRS) as part of normal operations (Killian et al, 1987a,b). The basins are now being closed according to the Resource Conservation and Recovery Act (RCRA). As part of the closure, a Part B Post-Closure Care Permit is being prepared. The information included in this report will fulfill some of the data requirements for that Part B permit. Several soil and water samples were collected along the Four Mile Creek (FMC) seepline at the F & H Areas of the Savannah River Site. The samples were analyzed for concentrations of metals, radionuclides, and inorganic constituents. The goal of the work reported herein is to document the impacts from the basins of FMC has been completed in a phased approach.
Date: June 20, 1990
Creator: Haselow, J. S.; Harris, M.; Looney, B. B.; Halverson, N. V. & Gladden, J. B.
Partner: UNT Libraries Government Documents Department

Analysis of soil and water at the Four Mile Creek seepline near the F&H areas of SRS

Description: Several soil and water samples were collected along the Four Mile Creek (FMC) seepline at the F & H Areas of the Savannah River Site. The samples were analyzed for concentrations of metals, radionuclides, and inorganic constituents. The results of the analyses are summarized below for the soil and water samples.
Date: June 20, 1990
Creator: Haselow, J. S.; Harris, M.; Looney, B. B.; Halverson, N. V. & Gladden, J. B.
Partner: UNT Libraries Government Documents Department