EFFICIENT HYDROLOGICAL TRACER-TEST DESIGN (EHTD) MODEL
This effort is intended to facilitate the assessment of solute-transport processes in ground water for the Office of Solid Waste and Emergency Response and the Office of Water.
Project Start Date10/01/1999
Project Completion Date (Actual/Projected)05/30/2003
Application of the predicted tracer mass with the hydraulic and geometric parameters in the ADE allows for an approximation of initial sample-collection time and subsequent sample-collection frequency where a maximum of 65 samples were determined to be necessary for describing the predicted tracer-breakthrough curve (BTC). Inclusion of tracer retardation and decay cause a net increase in tracer-mass estimates so that the preset average tracer concentration will be maintained, with a consequent steepening of the BTC, but retardation also causes BTC spreading and a delay in tracer arrival.
- EFFICIENT HYDROLOGIC TRACER-TEST DESIGN (EHTD) PROGRAM