PORT BYRON
PWSID: IL1610550 · Port Byron, IL · Serves 1,678 people
According to EPA Safe Drinking Water Information System (SDWIS), PORT BYRON (PWSID IL1610550) in Port Byron, IL is listed as a CWS water system covering about 1,678 people. The same extract lists 4 health-based violation records spanning 1994-2025. Those 4 health-based rows for PORT BYRON cover contaminants such as Manganese, Lead and Copper Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
PORT BYRON has 4 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 Manganese, Lead and Copper Rule. Recorded violations span 1994–2025. 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)
- IL1610550
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Port Byron, IL
- Population Served
- 1,678
- Health Violations
- Yes (4)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Manganese | 2 | 2 |
| Lead and Copper Rule | 2 | 2 |
Violation History (4)
| Contaminant | Health | Date |
|---|---|---|
| Manganese | Yes | Apr 1, 2025 |
| Manganese | Yes | Apr 1, 2025 |
| Lead and Copper Rule | Yes | Jan 1, 1997 |
| Lead and Copper Rule | Yes | Jan 1, 1994 |
Frequently Asked Questions
What does EPA SDWIS list for PORT BYRON?
How many people does PORT BYRON serve?
What violations does PORT BYRON have?
What contaminants have been found in PORT BYRON water?
Compare beyond Illinois
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest PORT BYRON on cumulative violation count (4) and EPA-reported population served (1,678). Violation-count peers include Santo Domingo Pueblo, Isleta Eastside, PARSHALL-LUCKY MOUND. Population peers include MORENCI WATER ELEC CO CLIFTON, REMSEN MUNICIPAL UTILITIES, NJ STATE PRISON BAYSIDE.
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
PORT BYRON (IL1610550) is drawn from EPA SDWIS. Nearby county systems in this extract include MOLINE; ROCK ISLAND; SILVIS; MILAN. Health-based rows (4 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.