MONMOUTH
PWSID: IL1870150 · Monmouth, IL · Serves 8,902 people
According to EPA Safe Drinking Water Information System (SDWIS), MONMOUTH (PWSID IL1870150) in Monmouth, IL is listed as a CWS water system covering about 8,902 people. The same extract lists 3 health-based violation records spanning 2024-2024. Those 3 health-based rows for MONMOUTH cover contaminants such as Combined Radium (-226 and -228); they remain historical EPA registry entries, not a current compliance or drinkability score.
MONMOUTH has 3 health-based violation records 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 Combined Radium (-226 and -228). Recorded violations span 2024–2024. 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)
- IL1870150
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Monmouth, IL
- Population Served
- 8,902
- Health Violations
- Yes (3)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Combined Radium (-226 and -228) | 3 | 3 |
Violation History (3)
| Contaminant | Health | Date |
|---|---|---|
| Combined Radium (-226 and -228) | Yes | Oct 1, 2024 |
| Combined Radium (-226 and -228) | Yes | Oct 1, 2024 |
| Combined Radium (-226 and -228) | Yes | Oct 1, 2024 |
Frequently Asked Questions
What does EPA SDWIS list for MONMOUTH?
How many people does MONMOUTH serve?
What violations does MONMOUTH have?
What contaminants have been found in MONMOUTH water?
Compare beyond Illinois
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest MONMOUTH on cumulative violation count (3) and EPA-reported population served (8,902). Violation-count peers include Mohegan Tribal Utility Authority, RED CLIFF NORTH, Tesuque Pueblo. Population peers include CLEAR CREEK CSD-ANDERSON, CITY OF NEW ALBANY, DANSVILLE VILLAGE.
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
MONMOUTH (IL1870150) is drawn from EPA SDWIS. Nearby county systems in this extract include ABINGDON; ROSEVILLE; KIRKWOOD; LITTLE SWAN LAKE SD. Health-based rows (3 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.