Geologic Controls of Hydraulic Conductivity in the Snake River Plain Aquifer At and Near the Idaho National Engineering and Environmental Laboratory, Idaho

Anderson, Sean; Kuntz, Mel A.; Davis, Linda C.

doi:10.2172/765526

Cited by 12 publications

(21 citation statements)

References 6 publications

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“…The same [29] However, the hydraulic conductivities obtained fall in the ranges obtained by [30] in the Snake River Plain Aquifer, in Idaho (USA). Results obtained from [30] showed that most of the hydraulic conductivities of wells found in thin, tube-fedpahoehoe flows and near-vent volcanic deposits (shelly pahoehoe and slab pahoehoe flows and bedded scoria, spatter, and ash) range between 3.5 × 10 −6 m/s and 3.5 × 10 −4 m/s.…”

Section: Hydraulic Propertiessupporting

confidence: 66%

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Geo-Electrical and Borehole Investigation of Groundwater in Some Basalts on the South-Eastern Flank of Mount Cameroon, West Africa

Lordon¹,

Agyingi²,

Manga³

et al. 2017

JWARP

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The study area, located on the southwestern flank of Mt. Cameroon, is underlain by basalts. The occurrence of groundwater in these rocks has been evaluated in order to determine their potentials as a source of water for a water bottling and soft drink plant. To achieve this, the constant separation traversing (CST) was used and the data qualitatively analyzed to determine the occurrence of fractures as most probable borehole sites. From this analysis, three sites were selected, sites at which a vertical electrical sounding (VES) was done and interpreted. Results obtained show a four layered earth profile model type KHKH, corresponding to a typical weathered/fractured confined aquifer type curve. This profile was later confirmed from borehole information after drilling at three of the selected sites. The comparison of VES data with geological sections is corroborative. A constant rate pumping test was done at rates as well as the investigation of other hydraulic properties. The results obtained for hydraulic properties investigated for all three boreholes reveal that productivity is very good and these results also reveal that at maximum exploitation rates, lowest tolerable drawdown for all three boreholes may not be reached after ten years. Chemical analysis done in-situ and on samples at the laboratory reveal that this water has a better mineralisation compared to other bottled water brands sold on the Cameroon market.

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Section: Hydraulic Propertiessupporting

confidence: 66%

“…Similar conclusions were reach by [28]. On the basis of the results obtained, points F1 (5, 37), F2 (21, 31), F3 (30,26) and F4 (35,27) were selected as more probable site for further investigation by VES and potential sites for drilling.…”

Section: Structure and Aquiferous Zonessupporting

confidence: 56%

Geo-Electrical and Borehole Investigation of Groundwater in Some Basalts on the South-Eastern Flank of Mount Cameroon, West Africa

Lordon¹,

Agyingi²,

Manga³

et al. 2017

JWARP

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show abstract

“…Some 50 miles to the southwest, along the southern boundary, the water table elevation was 4430 ft. This is an average gradient of 4.8 ft/mi, close to the average 4 ft/mi reported in other INEEL aquifer studies (Anderson, Kuntz, and Davis, 1999). Such a small hydraulic gradient can be difficult to detect with water levels collected from aquifer wells adjacent to each other.…”

Section: Introductionsupporting

confidence: 71%

Selecting Aquifer Wells for Planned Gyroscopic Logging

Rohe¹,

Studley²

2002

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SUMMARYUnderstanding the configuration of the eastern Snake River Plain aquifer's water table is made difficult, in part, due to borehole deviation in aquifer wells. A borehole has deviation if it is not vertical or straight. Deviation impairs the analysis of water table elevation measurements because it results in measurements that are greater than the true distance from the top of the well to the water table. Conceptual models of the water table configuration are important to environmental management decision-making at the INEEL; these models are based on measurements of depth to the water table taken from aquifer wells at or near the INEEL. When accurate data on the amount of deviation in any given borehole is acquired, then measurements of depth-to-water can be adjusted to reflect the true depth so more accurate conceptual models can be developed. Collection of additional borehole deviation data with gyroscopic logging is planned for selected wells to further our confidence in the quality of water level measurements.Selection of wells for the planned logging is based on qualitative and quantitative screening criteria. An existing data set from magnetic deviation logs was useful in establishing these criteria however, are considered less accurate than gyroscopic deviation logs under certain conditions. Population distributions for 128 aquifer wells with magnetic deviation data were used to establish three quantitative screening thresholds. Qualitative criteria consisted of administrative controls, accessibility issues, and drilling methods. Qualitative criteria eliminated all but 116 of the 337 aquifer wells, in the vicinity of the INEEL, that were initially examined in this screening effort. Of these, 72 have associated magnetic deviation data; 44 do not. Twenty-five (25) of the 72 wells with magnetic deviation data have deviation greater than one of the three quantitative screening thresholds. These 25 are recommended for the planned gyroscopic borehole deviation surveying. Nineteen (19) of the 44 wells without magnetic deviation data were selected for the planned gyroscopic logging based on their location relative to facilities, site boundaries, and contaminant transport concerns. In total, 44 aquifer wells (25 with magnetic deviation data and 19 without) are recommended for planned gyroscopic logging.

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“…Bartholomay and others (2000) 1996-98 Hydrologic conditions and distribution of selected constituents in water, INEEL, Idaho. Davis (2006aDavis ( ) 1999Davis ( -2001 Hydrologic conditions and distribution of selected radiochemical and chemical constituents in water, INL, Idaho.…”

Section: Investigation Period Summarymentioning

confidence: 99%

An Update of Hydrologic Conditions and Distribution of Selected Constituents in Water, Snake River Plain Aquifer and Perched-Water Zones, Idaho National Laboratory, Idaho, Emphasis 2002-05

Davis¹

2008

Scientific Investigations Report

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Geologic Controls of Hydraulic Conductivity in the Snake River Plain Aquifer At and Near the Idaho National Engineering and Environmental Laboratory, Idaho

Cited by 12 publications

References 6 publications

Geo-Electrical and Borehole Investigation of Groundwater in Some Basalts on the South-Eastern Flank of Mount Cameroon, West Africa

Geo-Electrical and Borehole Investigation of Groundwater in Some Basalts on the South-Eastern Flank of Mount Cameroon, West Africa

Selecting Aquifer Wells for Planned Gyroscopic Logging

An Update of Hydrologic Conditions and Distribution of Selected Constituents in Water, Snake River Plain Aquifer and Perched-Water Zones, Idaho National Laboratory, Idaho, Emphasis 2002-05

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