LAKE SHANNON
PWSID: IL0910020 · Reddick, IL · Serves 500 people
According to EPA Safe Drinking Water Information System (SDWIS), LAKE SHANNON (PWSID IL0910020) in Reddick, IL is listed as a CWS water system covering about 500 people. The same extract lists 12 health-based violation records spanning 2021-2025. Those 12 health-based rows for LAKE SHANNON cover contaminants such as TTHM; they remain historical EPA registry entries, not a current compliance or drinkability score.
LAKE SHANNON has 12 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 2021–2025. 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)
- IL0910020
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Reddick, IL
- Population Served
- 500
- Health Violations
- Yes (12)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| TTHM | 12 | 12 |
Violation History (12)
Frequently Asked Questions
What does EPA SDWIS list for LAKE SHANNON?
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Compare beyond Illinois
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest LAKE SHANNON on cumulative violation count (12) and EPA-reported population served (500). Violation-count peers include SAC & FOX (MESKWAKI) IN IOWA, Walker River Paiute Tribe, CRAIG PUBLIC WORKS. Population peers include SACKMAN, TRAPPER CREEK WATERING POINT, FCMTC WATERWORKS.
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
LAKE SHANNON (IL0910020) is drawn from EPA SDWIS. Nearby county systems in this extract include STEGER; MOMENCE; ST ANNE; CHEBANSE. Health-based rows (12 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.