Groundwater Quality Modeling at Redlands/Crafton Area

by Shih-Huang Chieh, Camp Dresser & McKee Inc, Irvine, CA, USA,
Mark J. Wildermuth, Camp Dresser & McKee Inc, Irvine, CA, USA,
P. Ravishanker, Camp Dresser & McKee Inc, Irvine, CA, USA,



Document Type: Proceeding Paper

Part of: Engineering Hydrology

Abstract:

Organic groundwater contamination exists in the Redlands area of the Bunker Hill Groundwater Basin which is of major concern to the health and water agencies in the region. The contaminants found are trichloroethylene (TCE), 1,1-dichlorethylene (DCE), perchloroethylene (PCE) and dibromochloropropane (DBCP). Groundwater elevations were measured in the area of interest and limited water quality parameters were measured or obtained from Santa Ana Regional Water Quality Control Board to establish initial condition. A finite element groundwater flow model and a finite element particle- tracking model was used to predict the movement of groundwater and contaminants. The model was used to predict the movement of contaminants with time and also to evaluate the impacts in groundwater quality due to the remedial alternatives considered. The alternatives include pumping of contaminated groundwater at different pumping rates and locations.

Subject Headings: Groundwater quality | Groundwater pollution | Water quality | Water pollution | Groundwater flow | Finite element method | Particle pollution

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