An update of hydrologic conditions and distribution of selected constituents in water, Snake River Plain aquifer and perched groundwater zones, Idaho National Laboratory, Idaho, emphasis 2006-08

Davis, Linda C.

doi:10.3133/sir20105197

Cited by 16 publications

(36 citation statements)

References 9 publications

(10 reference statements)

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“…Figure 28 shows the vertical distribution of nitrate concentrations with depth in MLMS-equipped wells during 2009-11. The vertical distribution of nitrate in wells exhibited similar patterns to data from 2006-08 (Davis, 2010). Nitrate concentrations in wells Middle 2051 and USGS 103 were lower in the uppermost zone, and similar in all deeper zones in each well ( fig.…”

Section: Nitrate (As Nitrogen)supporting

confidence: 62%

“…6) was greater than background at 19 mg/L. Chloride concentrations in water from all other wells completed in the ESRP aquifer at or near the ATR Complex were less than background and ranged between 10 and 14 mg/L during 2011, similar to the 2006-08 reporting period (Davis, 2010).…”

Section: Sodiummentioning

confidence: 66%

“…From 1987 to 2008, water samples from many wells completed in the ESRP aquifer at and near the INL were analyzed for VOCs for various water quality studies (Mann and Knobel, 1987;Liszewski and Mann, 1992;Greene and Tucker, 1998;Bartholomay and others, 2000;Davis, 2006bDavis, , 2008Davis, , 2010. Analyses from these studies indicated that from 1 to 19 VOCs in water samples from several wells exceeded their reporting levels during these years.…”

Section: Volatile Organic Compoundsmentioning

confidence: 99%

“…Water samples from wells completed in both shallow and deep perched groundwater at and near the ATR Complex have not yielded concentrations of cesium-137 greater than the reporting level since 1997; however, in April 2010, well USGS 61 had a concentration of cesium-137 that was equal to the reporting level (table 9). Water from wells at and near the ATR Complex has not had concentrations greater than the reporting level of chromium-51 since 1995, or cobalt-60 since 1998 (Davis, 2010).…”

Section: Gamma Spectrometrymentioning

confidence: 99%

“…The average annual discharge to this pond was about 17.5 million gallons (Mgal) during 1962-98. Sulfate and sodium hydrate were the predominant constituents in the chemical wastewater (Davis, 2010). In 1999, the chemical-waste infiltration pond was closed and covered with a protective cap (S.M.…”

Section: Advanced Test Reactor Complexmentioning

confidence: 99%

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An update of hydrologic conditions and distribution of selected constituents in water, eastern Snake River Plain aquifer and perched groundwater zones, Idaho National Laboratory, Idaho, emphasis 2009–11

Davis¹,

Bartholomay²,

Rattray³

2013

Scientific Investigations Report

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Section: Nitrate (As Nitrogen)supporting

confidence: 62%

Section: Sodiummentioning

confidence: 66%

Section: Volatile Organic Compoundsmentioning

confidence: 99%

Section: Gamma Spectrometrymentioning

confidence: 99%

Section: Advanced Test Reactor Complexmentioning

confidence: 99%

See 3 more Smart Citations

An update of hydrologic conditions and distribution of selected constituents in water, eastern Snake River Plain aquifer and perched groundwater zones, Idaho National Laboratory, Idaho, emphasis 2009–11

Davis¹,

Bartholomay²,

Rattray³

2013

Scientific Investigations Report

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Ambient Changes in Tracer Concentrations from a Multilevel Monitoring System in Basalt

Bartholomay¹,

Twining²,

Rose³

2013

Groundwater Monitoring Rem

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Starting in 2008, a 4‐year tracer study was conducted to evaluate ambient changes in groundwater concentrations of a 1,3,6‐naphthalene trisulfonate tracer that was added to drill water. Samples were collected under open borehole conditions and after installing a multilevel groundwater monitoring system completed with 11 discrete monitoring zones within dense and fractured basalt and sediment layers in the eastern Snake River aquifer. The study was done in cooperation with the U.S. Department of Energy to test whether ambient fracture flow conditions were sufficient to remove the effects of injected drill water prior to sample collection. Results from thief samples indicated that the tracer was present in minor concentrations 28 days after coring, but was not present 6 months after coring or 7 days after reaming the borehole. Results from sampling the multilevel monitoring system indicated that small concentrations of the tracer remained in 5 of 10 zones during some period after installation. All concentrations were several orders of magnitude lower than the initial concentrations in the drill water. The ports that had remnant concentrations of the tracer were either located near sediment layers or were located in dense basalt, which suggests limited groundwater flow near these ports. The ports completed in well‐fractured and vesicular basalt had no detectable concentrations.

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Final Report - Assessment of Testing Options for the NTR at the INL

Howe¹,

McLing²,

McCurry³

et al. 2013

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Executive SummaryOne of the main technologies that can be developed to dramatically enhance the human exploration of space is the nuclear thermal rocket (NTR). Several studies over the past thirty years have shown that the NTR can reduce the cost of a lunar outpost, reduce the risk of a human mission to Mars, enable fast transits for most missions throughout the solar system, and reduce the cost and time for robotic probes to deep space. Three separate committees of the National Research Council of the National Academy of Sciences have recommended that NASA develop the NTR. One of the primary issues in development of the NTR is the ability to verify a flight ready unit.Three main methods can be used to validate safe operation of a NTR, after which a fully complete engine could be launched into orbit for the first full power test. The NTR testing options include 1) Full power, full duration test in an above ground facility that scrubs the rocket exhaust clean of any fission products;2) Full power , full duration test using the Subsurface Active Filtering of Exhaust (SAFE) technique to capture the exhaust in subsurface strata;3) Test of the reactor fuel at temperature and power density in a driver reactor with subsequent first test of the fully integrated NTR in space.The first method, the above ground facility, has been studied in the past [Rocketdyne, INL, MSFC]. The second method, SAFE, has been examined for application at the Nevada Test Site.The third method relies on the fact that the Nuclear Furnace series of tests in 1971 showed that the radioactive exhaust coming from graphite based fuel for the NTR could be completely scrubbed of fission products and the clean hydrogen flared into the atmosphere.Under funding from the MSFC, the Center for Space Nuclear Research (CSNR) at the Idaho National laboratory (INL) has completed a reexamination of Methods 2 and 3 for implementation at the INL site. In short, the effort performed the following:Assess the geology of the INL site and determine a location suitable SAFE testing; Perform calculations of gas transport throughout the geology; Produce a cost estimate of a non-nuclear , sub-scale test using gas injection to validate the computational models;Produce a preliminary cost estimate to build a nuclear furnace equivalent facility to test NTR fuel on a green field location on the INL site.Reexamination of Method 3, involving test of the reactor fuel in a driver reactor indicated that a new Category I facility would be required, which would cost in excess of $250M. Reexamination of Method 2, showed that the INL geology is substantially better suited to the SAFE testing method than the NTS site. The existence of impermeable interbeds just above the sub-surface aquifer ensure that no material from the test, radioactive or not, can enter the water table. Similar beds located just below the surface will prevent any gaseous products from reaching the surface for dispersion. The extremely high permeability of the basalt strata between the interbeds should allow rapid di...

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An update of hydrologic conditions and distribution of selected constituents in water, Snake River Plain aquifer and perched groundwater zones, Idaho National Laboratory, Idaho, emphasis 2006-08

Cited by 16 publications

References 9 publications

An update of hydrologic conditions and distribution of selected constituents in water, eastern Snake River Plain aquifer and perched groundwater zones, Idaho National Laboratory, Idaho, emphasis 2009–11

An update of hydrologic conditions and distribution of selected constituents in water, eastern Snake River Plain aquifer and perched groundwater zones, Idaho National Laboratory, Idaho, emphasis 2009–11

Ambient Changes in Tracer Concentrations from a Multilevel Monitoring System in Basalt

Final Report - Assessment of Testing Options for the NTR at the INL

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