FAIRFIELD
PWSID: IL1910100 · Fairfield, IL · Serves 6,202 people
According to EPA Safe Drinking Water Information System (SDWIS), FAIRFIELD (PWSID IL1910100) in Fairfield, IL is listed as a CWS water system covering about 6,202 people. The same extract lists 1 health-based violation record spanning 2025-2025. Those 1 health-based row for FAIRFIELD cover contaminants such as CARBON, TOTAL; they remain historical EPA registry entries, not a current compliance or drinkability score.
FAIRFIELD has 1 health-based violation record in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 1 distinct EPA contaminant code appears in this system's record, including CARBON, TOTAL. Recorded violations span 2025–2025. Day-to-day primacy enforcement for this system runs through the Illinois drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Illinois state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- IL1910100
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Fairfield, IL
- Population Served
- 6,202
- Health Violations
- Yes (1)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| CARBON, TOTAL | 1 | 1 |
Violation History (1)
| Contaminant | Health | Date |
|---|---|---|
| CARBON, TOTAL | Yes | Oct 1, 2025 |
Frequently Asked Questions
What does EPA SDWIS list for FAIRFIELD?
How many people does FAIRFIELD serve?
What violations does FAIRFIELD have?
What contaminants have been found in FAIRFIELD water?
Compare beyond Illinois
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest FAIRFIELD on cumulative violation count (1) and EPA-reported population served (6,202). Violation-count peers include CHOCTAW - CONEHATTA, CHOCTAW - PEARL RIVER, CHOCTAW - TUCKER. Population peers include ROSE VALLEY WATER COMPANY, OAKLAND TOWN OF, UNIVERSITY OF ALASKA - FAIRBANKS.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
FAIRFIELD (IL1910100) is drawn from EPA SDWIS. Nearby county systems in this extract include WESTERN WAYNE WATER DISTRICT; JASPER WATERWORKS CORPORATION; NEW HOPE WATERWORKS CORP; WAYNE CITY. Health-based rows (1 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.