Estimating movement of ground water from a pond or large-radius conduit
- Desert Research Inst., Reno, NV (United States)
Evaluation of ground-water exchange between ponds or large-radius conduits and surrounding aquifers is a common problem in contaminant migration studies. Analytic solutions are useful tools for this evaluation, particularly when the system is incompletely characterized. Solutions are derived below for application to ponds, lakes, and natural or artificial conduits with a known discharge/recharge flux. General features of migration in this setting are determined by the ratio of pond flux (source/sink) to regional flux crossing the pond boundary. When this ratio is large (pond dominates) the effect of the pond is indistinguishable from a well. At intermediate values, movement from the pond against the regional now is inhibited, and discharge plumes are shifted downgradient relative to those for a well. At small ratios only a narrow plume will emerge from the downgradient side of a discharging pond, considerably narrower but longer than predicted for a well of the same strength.
- OSTI ID:
- 6531601
- Journal Information:
- Ground Water; (United States), Vol. 31:3; ISSN 0017-467X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AQUIFERS
CONTAMINATION
ENVIRONMENTAL TRANSPORT
MATHEMATICAL MODELS
GROUND WATER
FLUID FLOW
PONDS
WATER POLLUTION
HYDROGEN COMPOUNDS
MASS TRANSFER
OXYGEN COMPOUNDS
POLLUTION
SURFACE WATERS
WATER
540220* - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)