2007 Ground Water Summit

Wednesday, May 2, 2007: 2:40 p.m.-4:00 p.m.
Ruidoso (Albuquerque Convention Center)
Riverbank Filtration
Harmful contaminants can affect the quality of water pumped directly from rivers and streams. Often, it is possible to improve water quality by using the adjacent aquifer as a “filter” by pumping water from wells installed a short distance from the surface water body. The aquifer materials can effectively filter out waterborne bacteria and contaminants and produce water of superior quality and consistency. This technique is called riverbank filtration. By properly designing and placing vertical wells, radial collector wells, or infiltration galleries, it is possible to provide a water source having more consistent temperature, lower levels of bacteria and contaminants, and lower incidence of taste and odor problems than achievable from a surface water source.
Moderator:David Schafer, David Schafer & Associates
2:40 p.m.Evaluating Hydraulic Characteristics of the River/Aquifer System and Predicting Yield
David C. Schafer, David Schafer & Associates
3:00 p.m.Assessing Changes in Riverbank Filtration System Yield Over Time
David C. Schafer, David Schafer & Associates
3:20 p.m.Modeling Transport of Selected Organic Trace Pollutants during Riverbank Filtration
Gretchen L. Oldham, MS, student, John E. McCray, Jorg E. Drewes, PhD and Christiane Hoppe, PhD, candidate, Colorado School of Mines
3:40 p.m.Removal Efficiencies of Organic Micropollutants during Riverbank Filtration - Results from Field and Laboratory Studies
Christiane Hoppe, PhD, candidate and Jorg E. Drewes, PhD, Colorado School of Mines

The 2007 Ground Water Summit