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Transmissivity and hydraulic conductivity of saturated sedimentary rocks in the Hanford Reservation

Technical Report ·
DOI:https://doi.org/10.2172/7348972· OSTI ID:7348972
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The sedimentary rocks of the Pasco Basin include glaciofluviatile deposits and the Ringold Formation. They may also include sedimentary rocks interbedded with the basalts. In terms of the ground-water flow continuum these rocks are divided into the unsaturated zone, the upper dominantly coarse-clastic part of the zone of saturation and the lower dominantly fine-grained part of the zone of saturation. The effective porosity of the glaciofluviatile deposits that make up the upper coarse-clastic zone is no more than 3 or 4 percent. The effective porosity of the Ringold coarse clastics and fine clastics of the lower part has not been adequately measured--but is undoubtedly smaller. Drillers' logs combined with pumping tests were used as shown on this report to estimate and map the transmissivity and mean hydraulic conductivity of the saturated sedimentary rocks. They show that the largest values of transmissivity and mean hydraulic conductivity in the unconfined aquifer occur where the saturated thickness of the Pasco Gravels is largest. Intermediate values occur where the Pasco Gravels are thinnest and the Middle Ringold Conglomerates are thick. Low values occur where the Middle Ringold Conglomerate is thin, the Pasco Gravels are non-existent, and the Lower Ringold makes up the bulk of the saturated section.
Research Organization:
Atlantic Richfield Hanford Co., Richland, WA (USA)
DOE Contract Number:
E(45-1)-2130
OSTI ID:
7348972
Report Number(s):
ARH-C-00007
Country of Publication:
United States
Language:
English

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Related Subjects

510500 -- Environment
Terrestrial-- Site Resource & Use Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES
580100* -- Geology & Hydrology-- (-1989)
DATA
FLOW RATE
FLUID MECHANICS
GEOLOGICAL SURVEYS
GEOLOGY
GROUND WATER
HAPO
HYDRAULICS
HYDROGEN COMPOUNDS
HYDROLOGY
INFORMATION
LITHOLOGY
MAPS
MECHANICS
NATIONAL ORGANIZATIONS
NORTH AMERICA
OXYGEN COMPOUNDS
PACIFIC NORTHWEST REGION
PERMEABILITY
PETROLOGY
REACTOR SITES
ROCKS
SEDIMENTARY ROCKS
TABLES
US AEC
US ERDA
US ORGANIZATIONS
USA
WASHINGTON
WATER
WELL LOGGING