Source Water Assessment
and Protection Program

Source water assessment were completed for each of the approximately 760 public water supply systems operating in South Dakota (in 2000-2003) . A complete assessment is a three-step process that includes:

1. delineating the part of the watershed or ground water area that contributes water to the water supply;
2. identifying the significant potential sources of drinking water contamination in those areas;
3. determining the water supply's susceptibility to contamination from those sources.

For a summary of the assessment methods, click in the table below.

South Dakota's Source Water Assessment Methods