ILLIOPOLIS
PWSID: IL1670550 · Illiopolis, IL · Serves 1,037 people
According to EPA Safe Drinking Water Information System (SDWIS), ILLIOPOLIS (PWSID IL1670550) in Illiopolis, IL is listed as a CWS water system covering about 1,037 people. The same extract lists 16 health-based violation records spanning 2021-2022. Those 16 health-based rows for ILLIOPOLIS cover contaminants such as TTHM; they remain historical EPA registry entries, not a current compliance or drinkability score.
ILLIOPOLIS has 16 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 TTHM. Recorded violations span 2021–2022. 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)
- IL1670550
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Illiopolis, IL
- Population Served
- 1,037
- Health Violations
- Yes (16)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| TTHM | 16 | 16 |
Violation History (16)
| Contaminant | Health | Date |
|---|---|---|
| TTHM | Yes | Apr 1, 2022 |
| TTHM | Yes | Apr 1, 2022 |
| TTHM | Yes | Apr 1, 2022 |
| TTHM | Yes | Apr 1, 2022 |
| TTHM | Yes | Jan 1, 2022 |
| TTHM | Yes | Jan 1, 2022 |
| TTHM | Yes | Jan 1, 2022 |
| TTHM | Yes | Oct 1, 2021 |
| TTHM | Yes | Oct 1, 2021 |
| TTHM | Yes | Oct 1, 2021 |
| TTHM | Yes | Oct 1, 2021 |
| TTHM | Yes | Jul 1, 2021 |
| TTHM | Yes | Jul 1, 2021 |
| TTHM | Yes | Jul 1, 2021 |
| TTHM | Yes | Jul 1, 2021 |
| TTHM | Yes | Jul 1, 2021 |
Frequently Asked Questions
What does EPA SDWIS list for ILLIOPOLIS?
How many people does ILLIOPOLIS serve?
What violations does ILLIOPOLIS have?
What contaminants have been found in ILLIOPOLIS water?
Compare beyond Illinois
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest ILLIOPOLIS on cumulative violation count (16) and EPA-reported population served (1,037). Violation-count peers include WRANGELL, ST. MARYS WATER SYSTEM, SPARKMAN WATERWORKS. Population peers include AZALEA POINT, ERIE, CITY OF, ROGERS CO RWD # 9.
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
Explore More
About This Data
ILLIOPOLIS (IL1670550) is drawn from EPA SDWIS. Nearby county systems in this extract include SPRINGFIELD; CHATHAM; CURRAN-GARDNER TOWNSHIP PWD; WILLIAMSVILLE. Health-based rows (16 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.