Wellhead Protection Plan

Overview


A wellhead protection plan (WHPP) is one way to prevent pollution or contamination of public water-supply wells and source water. It helps keep drinking water clean and helps Chanhassen avoid costly treatment and cleanup of contaminated groundwater and the need to drill new water-supply wells.

To develop the WHPP, the City determined the parts of the aquifers from which public drinking water is drawn. The City and its engineers then defined drinking-water supply management areas (DWSMAs) to be protected by the plan.

With this information, the group was able to:
  • Identify potential sources of contamination that might affect the DWSMAs.
  • Determine how to manage these potential contaminant sources.
  • Develop an alternative water-supply contingency plan in case Chanhassen’s drinking water sources are ever contaminated.

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