Source Water Protection
The Source Water Protection Program strives to meet several goals:
- 1. Prevent contamination of public water supplies;
- 2. Encourage the placement of certain activities in areas less likely to contaminate public water
- 3. Raise public awareness of water resources used for public water supplies.
Mandatory Program Elements - completed for the public water system:
1. Delineation of a wellhead protection area for groundwater-dependent public water systems, or a source water
protection area for surface water-dependent public water systems: The delineation is based on existing
hydrologic and geologic information collected by state and federal agencies, the public water system, water well
contractors, and consultants.
2. Contaminant Source Inventory: The inventory identifies the presence and location of sources or activities
within the protection area that may contaminate groundwater or surface water.
3. Susceptibility Analysis: The analysis determines the susceptibility of the public water system wells or
intakes to contamination by sources inventoried within the protection area.
Voluntary Program Elements - pursued voluntarily by the public water system:
1. Development of Management Strategies: Management strategies are actions the governing body of the public
water system may pursue to protect groundwater or surface water within the protection area. Management
strategies may involve the use of ordinances, zoning restrictions, or permitting requirements where the
governing body has authority. Land acquisition in the protection area may be an option in cases where the
governing body is lacking authority for ordinances or zoning.
2. Development of Contingency Plans: Contingency planning will help the public water system respond to
interruptions in water supply. For example, how will you respond if a well or well field becomes unusable
because of contamination, drought, or mechanical failure? How will you respond if a contaminant release occurs
near a surface water intake?
3. Public Awareness: The public water system will benefit from efforts to inform the public of source water
protection. An informed public is less likely to conduct activities in the protection area that may threaten the
safety of its water supply.
4. New Wells: New wells should be located in areas that will maximize yield but also minimize potential
contamination of source water. The completion of a preliminary wellhead protection area delineation and source
inventory is therefore desirable prior to the installation of new wells.