Water Quality: Nashville, IL
7 water systems • 23,493 people served
Multiple Health ViolationsWater Quality Summary
Nashville is served by 7 public water systems with a combined service population of 23,493 people, and has 39 EPA Safe Drinking Water Act violations on record. Critically, 11 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Nashville's violation count is 35% above the national average for Illinois. Contaminants associated with violations include Barium, Contaminant 2920, Disinfection Byproducts, E. coli, TTHM.
Contaminants Found
Increases blood pressure and causes cardiovascular effects with long-term exposure.
Common source: Natural rock deposits, oil drilling operations, coal power plant waste
EPA limit: 2 mg/L
Broad category of chemicals formed during disinfection, associated with increased cancer risk and adverse reproductive effects.
Common source: Reaction of disinfectants (chlorine, ozone, chloramines) with organic matter
Causes gastrointestinal illness; certain strains (e.g., O157:H7) can cause severe kidney failure and death.
Common source: Fecal contamination from humans or animals entering the water supply
EPA limit: Zero (no E. coli permitted in drinking water)
Total trihalomethanes are linked to increased risk of bladder cancer and adverse reproductive outcomes.
Common source: Reaction of chlorine disinfectants with naturally occurring organic matter in water
EPA limit: 0.080 mg/L (80 ppb)
Water Systems Serving Nashville
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| WASHINGTON COUNTY WATER COMPANY | IL1895600 | Surface Water | 11,374 | 2 |
| MILLSTONE PWD | IL1515050 | Groundwater | 5,565 | 24 |
| NASHVILLE | IL1890300 | Surface Water | 3,230 | 0 |
| EGYPTIAN WATER COMPANY | IL1570010 | Surface Water | 2,330 | 5 |
| BALDWIN | IL1570050 | Surface Water | 601 | 4 |
| DUBOIS | IL1890150 | Surface Water | 200 | 2 |
| RADOM | IL1890450 | Surface Water | 193 | 2 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in Illinois
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.