HUNTLEY
PWSID: IL1110350 · Huntley, IL · Serves 28,495 people
According to EPA Safe Drinking Water Information System (SDWIS), HUNTLEY (PWSID IL1110350) in Huntley, IL is listed as a CWS water system covering about 28,495 people. The same extract lists 2 health-based violation records spanning 2025-2025. Those 2 health-based rows for HUNTLEY cover contaminants such as Revised Total Coliform Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
HUNTLEY has 2 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 Revised Total Coliform Rule. 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)
- IL1110350
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Huntley, IL
- Population Served
- 28,495
- Health Violations
- Yes (2)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Revised Total Coliform Rule | 2 | 2 |
Violation History (2)
| Contaminant | Health | Date |
|---|---|---|
| Revised Total Coliform Rule | Yes | Jul 1, 2025 |
| Revised Total Coliform Rule | Yes | Jul 1, 2025 |
Frequently Asked Questions
What does EPA SDWIS list for HUNTLEY?
How many people does HUNTLEY serve?
What violations does HUNTLEY have?
What contaminants have been found in HUNTLEY water?
Compare beyond Illinois
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest HUNTLEY on cumulative violation count (2) and EPA-reported population served (28,495). Violation-count peers include SAINT REGIS MOHAWK TRIBE, REDBY/RED LAKE, Kickapoo Traditional Tribe. Population peers include CITY OF OXFORD, PAW PENN DISTRICT, WEST JACKSON CO UTILITY DIST.
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
HUNTLEY (IL1110350) is drawn from EPA SDWIS. Nearby county systems in this extract include CRYSTAL LAKE; ALGONQUIN; LAKE IN THE HILLS; WOODSTOCK. Health-based rows (2 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.