Soil Sampling to Demonstrate Compliance with Department of Energy Radiological Clearance Requirements for the McGee Ranch-Riverlands and North Slope Units of the Hanford Reach National Monument

Fritz, Brad G.; Dirkes, Roger L.; Napier, Bruce A.

doi:10.2172/919706

Cited by 2 publications

(5 citation statements)

References 9 publications

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“…project from perimeter locations from 2000 through 2008 were compared to data collected during the land release studies of ALE and the North Slope (Fritz et al 2007a(Fritz et al , 2007b To analyze for temporal trends, the study period was divided into decades (1971-1979, 1980-1989, 1990-1999, 2000-2008). The last decade (2000) contained three discrete years of routine soil and vegetation surveillance data and the soil data from the land release studies.…”

Section: Data Evaluationmentioning

confidence: 99%

“…Using both the mean and the median as measures of central tendency provides more information about the distribution of the data. (Fritz et al 2007a(Fritz et al , 2007b. …”

Section: Data Evaluationmentioning

confidence: 99%

“…Soil data from activities supporting cleanup and land release (Dirkes et al 2002;Fritz et al 2003Fritz et al , 2007aFritz et al , 2007b were used in this assessment of surveillance data to better characterize radionuclide distributions in recent years.…”

Section: 2mentioning

confidence: 99%

“…Land release data were published in other technical reports (Fritz et al 2007a(Fritz et al , 2007bDirkes et al 2002).…”

Section: Introductionmentioning

confidence: 99%

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Radionuclide Concentrations in Terrestrial Vegetation and Soil Samples On and Around the Hanford Site, 1971 Through 2008

Simmons¹,

Poston²,

Fritz³

et al. 2011

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SummaryEnvironmental monitoring is conducted on the U.S. Department of Energy (DOE) Hanford Site to comply with DOE Orders and federal and state regulations. Major objectives of the monitoring are to characterize contaminant levels in the environment and to determine site contributions to the contaminant inventory. This report focuses on surface soil and perennial vegetation samples collected between 1971 and 2008 as part of the Pacific Northwest National Laboratory Surface Environmental Surveillance Project performed under contract to DOE. Areas sampled under this program are located on the Hanford Site but outside facility boundaries and on public lands surrounding the Hanford Site. Additional samples were collected during the past 8 years under DOE projects that evaluated parcels of land for radiological release. These data were included because the same sampling methodology and analytical laboratory were used for the projects.The spatial and temporal trends of six radionuclides collected over a 38-year period were evaluated. The radionuclides-cobalt-60, cesium-137, strontium-90, plutonium-238, plutonium-239/240, and uranium (reported as either uranium-238 or total uranium)-were selected because they persist in the environment and are still being monitored routinely and reported in Hanford Site environmental reports. All these radionuclides were associated with plutonium production and waste management of activities occurring on the site. Other sources include fallout from atmospheric testing of nuclear weapons, which ended in 1980, and the Chernobyl explosion in 1986. Uranium is also a natural component of the soil.Spatial trends involved comparing data from onsite locations with data from offsite locations. Offsite locations were divided into three categories based on distance from the site. These distance categories were perimeter (which included sites that were on the Hanford Site but away from facilities and reactors, such as sites on Rattlesnake Mountain (i.e., Fitzner/Eberhardt Arid Lands Ecology Reserve) and across the Columbia River); nearby locations (sample sites within 20 miles of the closest site boundary); and distant sites (locations greater than 20 miles from the closest site boundary).Additional spatial analysis evaluated data collected from the various onsite operational areas. Onsite areas included• the 100 Areas where the reactors were located along the Columbia River• 200 Areas on the Central Plateau and the site of much of the fuel reprocessing and waste storage• 300 Area on the southern edge of the site near the Columbia River where fuel fabrication and testing occurred• the 400 Area, which was the site of the Fast Flux Test Facility (FFTF)• the 600 Area, which included open areas between the other industrialized areas, such as the Hanford town site, near the Energy Northwest plant, and FFTF; and two perimeter locations at the Prosser and Yakima barricades.For temporal analysis, data were compared across decades (1970s, 1980s, 1990s, and 2000s).Soil and vegetation concentrations of radi...

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Section: Data Evaluationmentioning

confidence: 99%

“…Using both the mean and the median as measures of central tendency provides more information about the distribution of the data. (Fritz et al 2007a(Fritz et al , 2007b. …”

Section: Data Evaluationmentioning

confidence: 99%

Section: 2mentioning

confidence: 99%

“…Land release data were published in other technical reports (Fritz et al 2007a(Fritz et al , 2007bDirkes et al 2002).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Radionuclide Concentrations in Terrestrial Vegetation and Soil Samples On and Around the Hanford Site, 1971 Through 2008

Simmons¹,

Poston²,

Fritz³

et al. 2011

View full text Add to dashboard Cite

show abstract

“…In 2008, the SESP collected samples at 41 locations on and around the Hanford Site, and had them analyzed for metals in addition to the normal radiological constituents (Poston et al 2009). In 2004 and 2005, soil samples were collected at 117 locations on the Hanford Reach National Monument (HRNM) in support of the radiological release of that property (Fritz et al 2007a(Fritz et al , 2007b. In 2008, archived HRNM soil samples were analyzed for metals to supplement the radiological analyses.…”

Section: Introductionmentioning

confidence: 99%

A Review of Metal Concentrations Measured in Surface Soil Samples Collected on and Around the Hanford Site

Fritz¹

2009

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As part of the routine Hanford Site environmental surveillance program, researchers with the Surface Environmental Surveillance Project (SESP) collected soil samples at 41 locations on and around the Hanford Site in 2008. These samples were analyzed for metals in addition to the normal radiological constituents. In 2004 and 2005, soil samples were collected at 117 locations on the Hanford Reach National Monument (HRNM) and analyzed for radionuclides in support of the radiological release of that property. In 2008, archived HRNM soil samples (which were deemed expendable) were analyzed by SESP researchers for metals to supplement the radiological analyses previously performed, to expand the geographical coverage of the metals data set. Concentration results for 30 individual metals were generated by the analytical methods. Selenium and antimony were typically not measured at detectable concentrations. Mercury was detected in about half of the samples analyzed. All other constituents were measured at detectable concentrations in nearly all samples analyzed. The mean concentrations measured in this study were well below the soil cleanup levels for unrestricted land use established by the Model Toxics Control Act (MTCA). In addition to the average concentration being less than the benchmark, the 90th percentile concentration also was lower than the benchmark for the metals included in the MTCA. The results indicate that the measured concentrations of metals in surface soil were within the expected range of concentrations and consistent with previous results from samples collected on and around the Hanford Site.

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Soil Sampling to Demonstrate Compliance with Department of Energy Radiological Clearance Requirements for the McGee Ranch-Riverlands and North Slope Units of the Hanford Reach National Monument

Abstract: This document was printed on recycled paper.

Cited by 2 publications

References 9 publications

Radionuclide Concentrations in Terrestrial Vegetation and Soil Samples On and Around the Hanford Site, 1971 Through 2008

Radionuclide Concentrations in Terrestrial Vegetation and Soil Samples On and Around the Hanford Site, 1971 Through 2008

A Review of Metal Concentrations Measured in Surface Soil Samples Collected on and Around the Hanford Site

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