Resolving superimposed ground-water contaminant plumes characterized by chromium, nitrate, uranium, and technetium--99

Conference · Thu Feb 01 04:00:00 EST 1990

OSTI ID:7168507

Hall, S H

Leakage from a liquid waste storage and solar evaporation basin at the Hanford Site in southeastern Washington State has resulted in a ground-water contaminant plume characterized by nitrate, hexavalent chromium, uranium, and technetium-99. The plume is superimposed on a larger, pre-existing plume extending from upgradient sites and having the same suite of contaminants. However, the relative abundance of contaminant species is quite different for each plume source. Thus, characteristic concentration ratios, rather than concentrations of individual species, are used as geochemical tracers, with emphasis on graphical analysis. Accordingly, it has been possible to resolve the boundaries of the smaller plume and to estimate the contribution of each plume to the observed contamination downgradient from the storage basin. 11 refs., 7 figs.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• Sponsoring Organization: DOE/NE
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 7168507
• Report Number(s): PNL-SA-17289; CONF-9002103--1; ON: DE90008625
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540320 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
540330* -- Environment
Aquatic-- Radioactive Materials Monitoring & Transport-- (1990-)
ACTINIDES
ALKALI METALS
ALKALINE EARTH METALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALCIUM
CHLORINE
CHROMIUM
CONCENTRATION RATIO
CONTAMINATION
COPPER
ELEMENTS
ENVIRONMENTAL TRANSPORT
EVAPORATION
FLUORINE
GROUND WATER
HALOGENS
HANFORD RESERVATION
HOURS LIVING RADIOISOTOPES
HYDROGEN COMPOUNDS
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIQUID WASTES
MAGNESIUM
MANAGEMENT
MASS TRANSFER
METALS
NATIONAL ORGANIZATIONS
NICKEL
NITRATES
NITROGEN COMPOUNDS
NONMETALS
NUCLEI
ODD-EVEN NUCLEI
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PLUMES
POTASSIUM
RADIOISOTOPES
RADIONUCLIDE MIGRATION
SODIUM
STORAGE
SULFATES
SULFUR COMPOUNDS
TECHNETIUM 99
TECHNETIUM ISOTOPES
TRANSITION ELEMENTS
URANIUM
US DOE
US ERDA
US ORGANIZATIONS
WASTE MANAGEMENT
WASTE STORAGE
WASTES
WATER
WATER WELLS
WELLS
YEARS LIVING RADIOISOTOPES