Water quality in Illinois

Source: Rural groundwater wells

No specific contamination finding for Adair was located. Illinois has documented PFAS in groundwater across 47 communities statewide affecting over 400,000 residents, and west-central Illinois farm country carries general agricultural runoff risk, but Adair itself was not named among the affected systems, so a modest baseline is used.

Source: Local groundwater wells (small community water system)

No specific violation was found for this Adams, Illinois community. Illinois has a documented statewide lead problem (lead detected in 52 water systems, with several utilities issuing recent customer notices), so a modest baseline reflecting general Midwest lead-service-line risk is applied absent a confirmed local incident.

Source: Groundwater (shallow wells)

Aetna is a tiny rural hamlet in west-central Illinois farm country. No EPA or Illinois EPA violations, lawsuits, or documented contamination incidents were found specific to this community. As with much of the Illinois corn-and-soybean belt, shallow groundwater in the area carries a modest general risk from agricultural nitrate and pesticide runoff, though no local data confirms an issue here.

Source: Lake Michigan water (via DuPage Water Commission) supplemented by local groundwater wells

Addison is a Chicago suburb in DuPage County. No specific EPA or state violations, lawsuits, or contamination incidents for Addison, IL were found in research. Illinois EPA has documented PFAS exceedances at dozens of community water systems statewide, and suburban Chicago's industrial history gives the region a modest baseline risk, but nothing specific to Addison's own supply is on record.

Source: Groundwater (shallow wells)

Afton is a very small, sparsely documented rural Illinois hamlet. No EPA or Illinois EPA violations, lawsuits, or contamination incidents were found for this community. As with much of central Illinois farm country, a modest general risk from agricultural nitrate runoff applies regionally, though no site-specific data exists.

Source: Municipal groundwater wells

No specific drinking-water contamination incidents or EPA violations were found documented for Abingdon, Illinois. As a small community in Illinois's heavily farmed corn belt, it carries the same modest baseline nitrate/herbicide runoff risk common to the region, without any specific local finding to report.

Source: Groundwater wells

No specific documented contamination incident, EPA violation, or lawsuit was found for this very small Knox County community. As with much of downstate Illinois farm country, a modest baseline agricultural runoff risk applies, but no local finding was identified to report.

Source: Private and community groundwater wells

Adeline is a very small unincorporated northern Illinois community with no documented drinking-water violations found. Rural Ogle County's agricultural setting carries a general modest risk of nitrate contamination in shallow groundwater, consistent with much of the surrounding Midwest corn belt.

Source: Groundwater (rural wells, Washington County)

Addieville is a small rural community in southern Illinois farm country. No specific EPA or state violations, lawsuits, or contamination incidents for Addieville were found in research. Southern Illinois' agricultural belt carries a modest regional nitrate-runoff risk, and the state has broader documented PFAS concerns in other systems, but nothing specific to this town is on record.