Geological Research at the IGS
  

Source-water assessment

Status Start Date End Date Locations
completed All Counties
Director: Sally Letsinger
Other Researchers: Denver Harper, Greg Olyphant,
Funding: Indiana Department of Environmental Management (IDEM)
Issue: The state of Indiana, as part of the Source Water Protection Plan (SWAP), seeks to evaluate and assess the source-water sensitivity, susceptibility, and vulnerability of public ground-water supplies. The particular category of public water suppliers addressed in this study is referred to as "noncommunity, nontransient." This category predominantly includes small facilities such as schools and churches.
Objective: The objective of this project was to develop fact sheets for 650 individual, noncommunity, nontransient, public ground-water supplies throughout Indiana, as part of the Source Water Assessment Plan (SWAP).
Approach: Susceptibility of source water to contamination was assessed on the basis of: 1) The hydrogeologic sensitivity of the local area, and 2) The presence or absence of any contaminants of concern in the area. Hydrogeologic sensitivity was evaluated from two separate but related calculations: vertical travel time and horizontal travel distance.
Products: Fact sheets were developed for 650 individual, noncommunity, nontransient, public ground-water supplies throughout Indiana. The explanatory materials and individual fact sheets were provided to the funding agency in both digital form and as paper pamphlets.
Benefits: The sensitivity, susceptibility, and vulnerability of source water to potential sources of contamination was evaluated. This provided noncommunity, nontransient, public ground-water suppliers (for example, schools and churches) with information to assist in making appropriate decisions regarding protection of water resources.
Publications:

Source water assessments at the Indiana Geological Survey


 
 
 
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