DRASTIC evaluating pollution potential

Aller, L. Bennett, T. Lehr, J Petty, R. "DRASTIC A Standardized System for Evaluating Groundwater Pollution Potential using Hydrogeologic Settings" USEPA, Office of Research and Development Washington, D.C., 1985 384 pp. 

DRASTIC A System to Evaluate the Pollution Potential of Hydrogeologic Settings by Pesticides... 

Once a DRASTIC Index has been computed, it is possible to identify areas v/hich are likely to be susceptible to ground water contamination relative to one another. The higher the DRASTIC Index, the greater the ground-water pollution potential. The DRASTIC Index provides only a relative evaluation tool and is not designed to provide absolute answers. 

In areas with more subtle changes in hydrogeology, the DRASTIC Indices would reflect more subtle changes. The system does not attempt to define "good" or "bad areas, but simply offers the user a tool to evaluate the relative pollution potential of whatever areas are desired. The user may wish to then consider additional factors such as importance of the aquifer population or other factors in fully assessing the importance of pollution potential in any area. 

DRASTIC A Standardized System for Evaluating Ground Water Pollution Potential Using Hydrogeologic Settings... 

Aller, L, et al. (1985). Drastic, A Standard System for Evaluating Ground Water Pollution Potential Using Hydrogeologic Setting, USEPA, R. S. Kerr Environmental Research Laboratory, EPA/60012-851018. Ada, OK. 

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