Cross borehole electromagnetic imaging of chemical and mixed waste landfills
- Sandia National Labs., Albuquerque, NM (United States)
- RIMtech, Inc., Raton, New Mexico (United States)
- RIMtech, Inc., Westminster, Colorado (United States)
The Mixed Waste Landfill Integrated Demonstration (MWLID) is testing noninvasive site characterization methods at several locations, including the Chemical Waste Landfill (CWL) at Sandia National Laboratories. The CWL comprises shallow, unlined pits that were used for the disposal of acids, oils, solvents, and inorganic compounds from 1962 until the CWL was closed in 1985. The soils of the landfills are alluvial, predominantly sand, gravels and cobbles with small quantities of silts and clays. The focus of this study is an unlined chromic acid pit (UCAP). The UCAP pit is rectangular (approximately 4 {times} 10 m), which reportedly received unknown volumes of chromium in the form of chromic acid (liquid) and other hazardous materials. At this location, we have demonstrated a continuous waveform (CW) system for site characterization. During this year, we will also utilize a crossborehole pulsed radar system. Both methods are sensitive to variations in either electrical conductivity or dielectric constant in the soils or host rock at a waste site. These earth properties are some of the most responsive geophysical indicators of metallic, acidic and water-based subsurface contaminants.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 10156423
- Report Number(s):
- SAND--92-2296C; CONF-9304109--4; ON: DE93011684
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
054000
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
54 ENVIRONMENTAL SCIENCES
540230
CHEMICAL WASTES
ELECTRIC CONDUCTIVITY
ELECTROMAGNETIC RADIATION
GEOPHYSICAL SURVEYS
HAZARDOUS MATERIALS
HEALTH AND SAFETY
IMAGE PROCESSING
IMAGES
RADAR
RADIOACTIVE MATERIALS MONITORING AND TRANSPORT
RADIOACTIVE WASTE FACILITIES
RADIOACTIVE WASTES
RADIONUCLIDE MIGRATION
ROCKS
SITE CHARACTERIZATION
SOILS
TOMOGRAPHY
WASTE DISPOSAL AND STORAGE