Public water system · IL0975227
ActiveGreat Lakes Naval Training Station
At a glance
Great Lakes Naval Training Station (PWSID IL0975227) is an active community water system in Lake County, Illinois. It reports serving 23,000 people through 1,140 service connections. Its primary water source is surface water, and EPA lists it as owned by the federal government. EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in July 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
23,000
Service connections
1,140
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Great Lakes Naval Training Station compare with other water systems in Lake County?
By EPA's size categories, Great Lakes Naval Training Station is a large system (10,001 to 100,000 people). Lake County has 266 active public water systems. Its population served is about 9.4 times the county average of 2,442 people per system, and accounts for 3.5% of the 649,474 people reported by systems filed under the county. Across Illinois, the 3,872 active systems average 3,204 people each. Nationally, the average active community water system reports serving 6,703 people, so Great Lakes Naval Training Station is about 3.4 times that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Illinois has 1,773 active community water systems, 46% of the state's 3,872 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 89 Illinois systems (2.3%) list surface water as their primary source.
Who owns and regulates Great Lakes Naval Training Station?
EPA lists Great Lakes Naval Training Station as owned by the federal government. The IL state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 1 of the 266 active systems in Lake County (0.4%) are also owned by the federal government.
Does Great Lakes Naval Training Station have drinking water violations?
EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in July 2020. The violations listed here began between April 1989 and July 2020. By type: 9 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 10 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2020-07-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2008-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2008-09-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1989-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,1-Trichloroethanecode 2981 | No | Resolved |
| 1989-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbon tetrachloridecode 2982 | No | Resolved |
| 1989-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | p-Dichlorobenzenecode 2969 | No | Resolved |
| 1989-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | No | Resolved |
| 1989-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Resolved |
| 1989-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1-Dichloroethylenecode 2977 | No | Resolved |
| 1989-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloroethanecode 2980 | No | Resolved |
All 10 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Great Lakes Naval Training Station: frequently asked questions
Who runs Great Lakes Naval Training Station?
Great Lakes Naval Training Station (PWSID IL0975227) is a community water system owned by the federal government. It is regulated by the IL state drinking water program.
How many people does Great Lakes Naval Training Station serve?
Great Lakes Naval Training Station reports serving 23,000 people through 1,140 service connections in Lake County, Illinois.
Where does Great Lakes Naval Training Station get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Great Lakes Naval Training Station have any drinking water violations?
EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in July 2020. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Great Lakes Naval Training Station's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in July 2020. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Great Lakes Naval Training Station's water quality report?
As a community water system, Great Lakes Naval Training Station must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Lake County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Waukegan | Lake | 87,149 | Community | Surface water |
| Vernon Hills - Lake Co Pw | Lake | 33,207 | Community | Purchased surface water |
| Mundelein | Lake | 31,500 | Community | Purchased surface water |
| Gurnee | Lake | 30,193 | Community | Purchased surface water |
| Highland Park | Lake | 30,176 | Community | Surface water |
| Round Lake Beach | Lake | 27,200 | Community | Purchased surface water |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Great Lakes Naval Training Station, PWSID IL0975227, Illinois”, https://aquacensus.com/water-systems/illinois/great-lakes-naval-training-station-il0975227 (data as of October 1, 2026).