Aquifer Characteristics Data Report for the Weldon Spring Site chemical plant/raffinate pits and vicinity properties for the Weldon Spring Site Remedial Action Project, Weldon Spring, Missouri

Technical Report · Thu Nov 01 00:00:00 EST 1990

DOI:https://doi.org/10.2172/6365812· OSTI ID:6365812

This report describes the procedures and methods used, and presents the results of physical testing performed, to characterize the hydraulic properties of the shallow Mississippian-Devonian aquifer beneath the Weldon Spring chemical plant, raffinate pits, and vicinity properties. The aquifer of concern is composed of saturated rocks of the Burlington-Keokuk Limestone which constitutes the upper portion of the Mississippian-Devonian aquifer. This aquifer is a heterogeneous anisotropic medium which can be described in terms of diffuse Darcian flow overlain by high porosity discrete flow zones and conduits. Average hydraulic conductivity for all wells tested is 9.6E-02 meters/day (3.1E-01 feet/day). High hydraulic conductivity values are representative of discrete flow in the fractured and weathered zones in the upper Burlington-Keokuk Limestone. They indicate heterogeneities within the Mississippian-Devonian aquifer. Aquifer heterogeneity in the horizontal plane is believed to be randomly distributed and is a function of fracture spacing, solution voids, and preglacial weathering phenomena. Relatively high hydraulic conductivities in deeper portions of the aquifer are though to be due to the presence of widely spaced fractures. 44 refs., 27 figs., 9 tabs.

• Research Organization: MK-Ferguson Co., St. Charles, MO (USA); Jacobs Engineering Group, Inc., St. Charles, MO (USA)
• Sponsoring Organization: DOE/NE
• DOE Contract Number: AC05-86OR21548
• OSTI ID: 6365812
• Report Number(s): DOE/OR/21548-122; ON: DE91004615; TRN: 91-002961
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
54 ENVIRONMENTAL SCIENCES
AQUIFERS
HYDRAULIC CONDUCTIVITY
CHEMICAL PLANTS
REMEDIAL ACTION
GROUND WATER
FLOW RATE
LIMESTONE
MISSOURI
GEOLOGIC SURVEYS
BROMIDES
CHLORINE
DECONTAMINATION
DRAWDOWN
ENVIRONMENTAL EXPOSURE PATHWAY
FLUID FLOW
HAZARDOUS MATERIALS
HYDROLOGY
ORE PROCESSING
SITE CHARACTERIZATION
SOIL MECHANICS
SURFACE WATERS
THORIUM ORES
TRACER TECHNIQUES
URANIUM ORES
WASTE TRANSPORTATION
WATER TABLES
BROMINE COMPOUNDS
CARBONATE ROCKS
CLEANING
ELEMENTS
FEDERAL REGION VII
HALIDES
HALOGEN COMPOUNDS
HALOGENS
HYDROGEN COMPOUNDS
INDUSTRIAL PLANTS
ISOTOPE APPLICATIONS
MANAGEMENT
MATERIALS
MECHANICS
NONMETALS
NORTH AMERICA
ORES
OXYGEN COMPOUNDS
PROCESSING
ROCKS
SEDIMENTARY ROCKS
SURVEYS
TRANSPORT
USA
WASTE MANAGEMENT
WATER
052002* - Nuclear Fuels- Waste Disposal & Storage
540250 - Environment
Terrestrial- Site Resource & Use Studies- (1990-)
540350 - Environment
Aquatic- Site Resource & Use Studies- (1990-)