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Review of Water-Well Data from the Unconfined Aquifer in the Eastern and Southern Parts of the Pasco Basin

机译:帕斯科盆地东部和南部非承压含水层水井资料回顾

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An overview of the post-Columbia River basalt geology and shallow hydrogeology of the Pasco Basin for areas adjacent to the Hanford Site is presented. The lithostratigraphic units described include the surface of the Columbia River basalt; the basal gravels, silts and clays, and conglomerates of the Ringold Formation; and the Hanford formation (informal name). Discussions regarding the occurrences, hydraulic properties, and flow characteristics of the shallow (unconfined) groundwater systems are described for six subareas within the study region. Empirical transmissivity values are tabulated for 209 wells and 11 plates provide geologic and hydrologic data at a 1:62,500 scale for the study area. (ERA citation 81:026417)

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