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Indiana Department of Environmental Management

IDEM > Compliance > Water Compliance > Source Water Protection - Drinking Water > Wellhead Protection Program > Wellhead: Phase II Implementation Table Wellhead: Phase II Implementation Table

Public Water Supply System Size
(population served)
Submittal Time
years from Phase I Approval)
Submittal and Update Requirements
More than 50,000
  • Comprehensive wellhead protection program
  • Updated implementation schedule
  • Updated WHPA delineation, considering any new data
  • Updated potential contamination sources inventory
  • Report of any problems or concerns
  • Revised contingency plan if needed
  • Documentation to confirm:
    • Sanitary setback area meets requirements
    • Abandoned wells are identified
    • Wellhead is secured from unauthorized access
    • All potential contamination sources within WHPA are managed
    • Public education is ongoing
    • Any new ground water contamination within WHPA is reported
3,300 to 50,000
Fewer than 3,300