Hydrological, meteorological, and geohydrological data for an unsaturated zone study near the radioactive waste management complex, Idaho National Engineering Laboratory, Idaho; 1987

Davis, Linda C.; Pittman, John R.

doi:10.3133/ofr90114

Cited by 14 publications

(16 citation statements)

References 13 publications

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“…USGS test trench conclusions, as summarized 3-42 by Perkins (2000), were that moisture content is variable in shallow depths but relatively constant at depths below 3 m, even under flood conditions. The USGS test trench work is further documented in and Davis and Pittman (1990). Additional infiltration studies were conducted by Cecil et al (1992) using chlorine-36 as a surface water tracer.…”

Section: Infiltration Ratesmentioning

confidence: 99%

INEEL Subregional Conceptual Model Report Volume 3: Summary of Existing Knowledge of Natural and Anthropogenic Influences on the Release of Contaminants to the Subsurface Environment from Waste Source Terms at the INEEL

Wichlacz¹

2003

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Section: Infiltration Ratesmentioning

confidence: 99%

INEEL Subregional Conceptual Model Report Volume 3: Summary of Existing Knowledge of Natural and Anthropogenic Influences on the Release of Contaminants to the Subsurface Environment from Waste Source Terms at the INEEL

Wichlacz¹

2003

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“…The annual precipitation at the RWMC for 1986 and 1987 was 240 mm and 175 mm, respectively. The average daily air temperature for 1987 at the USGS test trench ranged from 26.7 O C on August 6 to -14.6 O C on December 25 (Davis and Pittman, 1990). …”

Section: Geohydrologic Settingmentioning

confidence: 99%

“…A comprehensive study to determine the potential for future migration of radionuclides into the underlying Snake River Plain aquifer, which is approximately 180 m below the surface, has been undertaken by the United States Geological Survey (USGS) in cooperation with the DOE. Because hydrologic experimentation in the waste pits is potentially dangerous, the USGS in 1986 constructed a simulated waste trench in the USGS test trench area just north of the SDA boundary (Davis and Pittman, 1990). In constructing the simulated waste trench ( fig.…”

Section: Introductionmentioning

confidence: 99%

Changes in soil hydraulic properties caused by construction of a simulated waste trench at the Idaho National Engineering Laboratory, Idaho

Shakofsky¹

1995

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“…Recharge temperatures calculated from N 2 (nitrogen) and Ar (argon) concentrations are about 6°C in the underflow from Birch Creek, Little Lost River, and Big Lost River and between 9 and 13°C for the Snake River Plain Aquifer at INL (USGS 2007) (http://water.usgs.gov/lab/chlorofluorocarbons/research/inl/). Temperature data from shallow monitoring locations at the RWMC (i.e., USGS Test Trench study [Davis and Pittman 1990]). For constant natural recharge sources, the recharge temperature was estimated at the surface from the mean annual air temperature, assuming an offset of + 4.7°C.…”

Section: 31171mentioning

confidence: 99%

Development Report on the Idaho National Laboratory Sitewide Three-Dimensional Aquifer Model

Wood¹,

Helm-Clark²,

Huang³

et al. 2007

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A sub-regional scale, three-dimensional flow model of the Snake River Plain Aquifer was developed to support remediation decisions for Waste Area Group 10, Operable Unit 10-08 at the Idaho National Laboratory (INL) Site. This model has been calibrated primarily to water levels and secondarily to groundwater velocities interpreted from stable isotope disequilibrium studies and the movement of anthropogenic contaminants in the aquifer from facilities at the INL. The three-dimensional flow model described in this report is one step in the process of constructing a fully three-dimensional groundwater flow and contaminant transport model as prescribed in the Idaho National Engineering and Environmental Laboratory Operable Unit 10-08 Sitewide Groundwater Model Work Plan.An updated three-dimensional hydrogeologic conceptual model is presented along with the geologic basis for the conceptual model. Sediment-dominated three-dimensional volumes were used to represent the geology and constrain groundwater flow as part of the conceptual model. Hydrological, geochemical, and geological data were summarized and evaluated to infer aquifer behavior. A primary observation from development and evaluation of the conceptual model was that relative to flow on a regional scale, the aquifer can be treated with steady-state conditions. Boundary conditions developed for the three-dimensional flow model are presented along with inverse simulations that estimate parameterization of hydraulic conductivity. Inverse simulations were performed using the pilot-point method to estimate permeability distributions. Thermal modeling at the regional aquifer scale and at the sub-regional scale using the inverted permeabilities is presented to corroborate the results of the flow model.The results from the flow model show good agreement with simulated and observed water levels almost always within 1 meter. Simulated velocities show generally good agreement with some discrepancies in an interpreted low-velocity region near the toe of the Arco Hills. This discrepancy persisted in each of the aquifer bottom thickness scenarios that were simulated precluding decisions on which aquifer bottom thickness to use in transport simulations. When joint-calibration was performed using both water levels and velocities assigned as calibration targets, the discrepancy was prevented. This result highlighted the need to consider multiple calibration objectives and not rely solely on calibration to water levels.

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Hydrological, meteorological, and geohydrological data for an unsaturated zone study near the radioactive waste management complex, Idaho National Engineering Laboratory, Idaho; 1987

Cited by 14 publications

References 13 publications

INEEL Subregional Conceptual Model Report Volume 3: Summary of Existing Knowledge of Natural and Anthropogenic Influences on the Release of Contaminants to the Subsurface Environment from Waste Source Terms at the INEEL

INEEL Subregional Conceptual Model Report Volume 3: Summary of Existing Knowledge of Natural and Anthropogenic Influences on the Release of Contaminants to the Subsurface Environment from Waste Source Terms at the INEEL

Changes in soil hydraulic properties caused by construction of a simulated waste trench at the Idaho National Engineering Laboratory, Idaho

Development Report on the Idaho National Laboratory Sitewide Three-Dimensional Aquifer Model

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