Source Water Assessment Program
Source water assessments are provided to public water systems by IDEM and are intended to provide basic information to public water suppliers regarding:
- where their drinking water comes from
- the degree, called susceptibility, to which the drinking water source may be impacted by potential sources of contamination.
Susceptibility Determination
A system's susceptibility was rated on a scale from low to high. To view the complete Source Water Assessment, please search the Drinking Water Branch Virtual File Cabinet.
To find out susceptibility determination of a public water system, you may download or view one of the files below. The spreadsheets are arranged by county. A brief explanation of each column in the spreadsheet:
PWSID: Public Water Supply Identification Number
System Name: System Name on file with IDEM
County Name: County in which the system is located
System Status: Current status of system, either Active or Inactive
Susceptibility Determination: Final susceptibility determination made by IDEM
- Community Public Water Supply Systems Susceptibility Determinations [XLS]
- Includes all completed assessments for a public water system that provides water for human consumption to at least 15 service connections used by year-round residents, or one that regularly serves at least 25 year-round residents (e.g., municipalities, subdivisions, and mobile home parks).
- Non-Transient Non-Community Supply Systems Susceptibility Determinations [XLS]
- Includes all completed assessments for a public water system that regularly serve at least 25 of the same individuals over six (6) months (e.g., schools, churches, businesses).
- Transient Non-Community Supply Systems Susceptibility Determinations [XLS]
- Includes all completed assessments for a public water system that does not regularly serve at least 25 of the same individuals over six (6) months (e.g., highway rest stops, restaurants, parks).
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