Development of an arid site closure plan

Conference · Thu Jan 01 04:00:00 EST 1987

OSTI ID:6262982

Nyhan, J W; Barnes, F J

This document describes the development of a prototype plan for the effective closure and stabilization of an arid low-level waste disposal site. This plan will provide demonstrated closure techniques for a trench in a disposal site at Los Alamos. The accuracy of modeling soil water storage by two hydrologic models, CREAMS and HELP, was tested by comparing simulation results with field measurements of soil moisture in eight experimental landfill cover systems having a range of well-defined soil profiles and vegetative covers. Regression analysis showed that CREAMS generally represented soil moisture more accurately than HELP simulations. Precautions for determining parameter values for model input and for interpreting simulation results are discussed. A specific example is presented showing how the field-validated hydrologic models can be used to develop a final prototype closure plan. 15 refs., 13 figs., 3 tabs.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6262982
• Report Number(s): LA-UR-87-2855; CONF-870859-14; ON: DE87014755
• Country of Publication: United States
• Language: English

Related Subjects

052000* -- Nuclear Fuels-- Waste Management
053000 -- Nuclear Fuels-- Environmental Aspects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
510300 -- Environment
Terrestrial-- Radioactive Materials Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ARID LANDS
ATMOSPHERIC PRECIPITATIONS
C CODES
COMPUTER CODES
COMPUTERIZED SIMULATION
DECOMMISSIONING
EROSION
FEDERAL REGION VI
GROUND COVER
GROUND DISPOSAL
GROUND WATER
H CODES
HYDROGEN COMPOUNDS
HYDROLOGY
INTRUSION
LASL
LOS ALAMOS
LOW-LEVEL RADIOACTIVE WASTES
MANAGEMENT
MATERIALS
MATHEMATICAL MODELS
NATIONAL ORGANIZATIONS
NEW MEXICO
NORTH AMERICA
OXYGEN COMPOUNDS
PLANNING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RAIN
RECOMMENDATIONS
SANITARY LANDFILLS
SIMULATION
STABILIZATION
US AEC
US DOE
US ERDA
US ORGANIZATIONS
USA
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
WATER