WENONA
PWSID: IL1234950 · Wenona, IL · Serves 974 people
According to EPA Safe Drinking Water Information System (SDWIS), WENONA (PWSID IL1234950) in Wenona, IL is listed as a CWS water system covering about 974 people. The same extract lists 8 health-based violation records spanning 1994-2024. Those 8 health-based rows for WENONA cover contaminants such as Combined Radium (-226 and -228), Lead and Copper Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
WENONA has 8 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. 2 distinct EPA contaminant codes appear in this system's record, including Combined Radium (-226 and -228), Lead and Copper Rule. Recorded violations span 1994–2024. 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)
- IL1234950
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Wenona, IL
- Population Served
- 974
- Health Violations
- Yes (8)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Combined Radium (-226 and -228) | 5 | 5 |
| Lead and Copper Rule | 3 | 3 |
Violation History (8)
| 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 |
| Combined Radium (-226 and -228) | Yes | Oct 1, 2024 |
| Combined Radium (-226 and -228) | Yes | Oct 1, 2024 |
| Lead and Copper Rule | Yes | Jan 1, 1995 |
| Lead and Copper Rule | Yes | Jan 1, 1994 |
| Lead and Copper Rule | Yes | Jan 1, 1994 |
Frequently Asked Questions
What does EPA SDWIS list for WENONA?
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Compare beyond Illinois
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest WENONA on cumulative violation count (8) and EPA-reported population served (974). Violation-count peers include Mashantucket Pequot Water System, San Ildefonso Pueblo, TOWAOC WATER SYSTEM. Population peers include PHILO, TRUMBAUERSVILLE MUN WATERWORKS, SOUTH TONGASS WATER UTILITY.
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
WENONA (IL1234950) is drawn from EPA SDWIS. Nearby county systems in this extract include OTTAWA; PERU; LA SALLE; MENDOTA. Health-based rows (8 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.