NORTH CHICAGO
PWSID: IL0971250 · North Chicago, IL · Serves 16,813 people
According to EPA Safe Drinking Water Information System (SDWIS), NORTH CHICAGO (PWSID IL0971250) in North Chicago, IL is listed as a CWS water system covering about 16,813 people. The same extract lists 9 health-based violation records spanning 2023-2024. Those 9 health-based rows for NORTH CHICAGO cover contaminants such as TTHM, Di(2-ethylhexyl) phthalate; they remain historical EPA registry entries, not a current compliance or drinkability score.
NORTH CHICAGO has 9 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 TTHM, Di(2-ethylhexyl) phthalate. Recorded violations span 2023–2024. 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)
- IL0971250
- System Type
- CWS
- Water Source
- Surface Water
- Location
- North Chicago, IL
- Population Served
- 16,813
- Health Violations
- Yes (9)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| TTHM | 6 | 6 |
| Di(2-ethylhexyl) phthalate | 3 | 3 |
Violation History (9)
| Contaminant | Health | Date |
|---|---|---|
| Di(2-ethylhexyl) phthalate | Yes | Apr 1, 2024 |
| Di(2-ethylhexyl) phthalate | Yes | Apr 1, 2024 |
| Di(2-ethylhexyl) phthalate | Yes | Apr 1, 2024 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
| TTHM | Yes | Apr 1, 2023 |
Frequently Asked Questions
What does EPA SDWIS list for NORTH CHICAGO?
How many people does NORTH CHICAGO serve?
What violations does NORTH CHICAGO have?
What contaminants have been found in NORTH CHICAGO water?
Compare beyond Illinois
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest NORTH CHICAGO on cumulative violation count (9) and EPA-reported population served (16,813). Violation-count peers include Santa Clara Pueblo, PARSHALL, CITY OF, WELLPINIT. Population peers include CITY OF GONZALES WATER SYSTEM, MONTGOMERY COUNTY MUD 67, NAVAL STATION WASHINGTON - WNY.
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
NORTH CHICAGO (IL0971250) is drawn from EPA SDWIS. Nearby county systems in this extract include WAUKEGAN; BUFFALO GROVE; MUNDELEIN; GURNEE. Health-based rows (9 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.