Public water system · IL3150276
ActiveGreat Water USA
At a glance
Great Water USA (PWSID IL3150276) is an active transient non-community water system in Grundy County, Illinois. It reports serving 25 people through 1 service connection. Its primary water source is purchased groundwater, and EPA lists it as privately owned. EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2008.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
1
Primary source
GWP
Purchased groundwater
System type
TNCWS
Transient non-community water system
System record
How does Great Water USA compare with other water systems in Grundy County?
By EPA's size categories, Great Water USA is a very small system (500 people or fewer). Grundy County has 51 active public water systems. Its population served is well below the county average of 1,002 people per system, and accounts for less than 0.1% of the 51,074 people reported by systems filed under the county. Across Illinois, the 3,872 active systems average 3,204 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Great Water USA is well below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Illinois has 1,703 active transient non-community water systems, 44% of the state's 3,872 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 348 Illinois systems (9%) list purchased groundwater as their primary source.
Who owns and regulates Great Water USA?
EPA lists Great Water USA as privately owned. 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. 29 of the 51 active systems in Grundy County (57%) are also privately owned.
Does Great Water USA have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2008. By type: 1 monitoring and reporting. The contaminant or rule involved is Nitrate. EPA lists 1 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 |
|---|---|---|---|---|
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
The one violation in EPA's records.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 Water USA: frequently asked questions
Who runs Great Water USA?
Great Water USA (PWSID IL3150276) is a transient non-community water system privately owned. It is regulated by the IL state drinking water program.
How many people does Great Water USA serve?
Great Water USA reports serving 25 people through 1 service connection in Grundy County, Illinois.
Where does Great Water USA get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Great Water USA have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2008. 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 Water USA'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 one violation for this system; it is not health-based, and the most recent began in January 2008. For current results, consult EPA ECHO, or the IL state drinking water program.
Where can I find Great Water USA's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Great Water USA is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Grundy County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Morris | Grundy | 14,775 | Community | Groundwater |
| Minooka | Grundy | 12,800 | Community | Groundwater |
| Coal City | Grundy | 5,749 | Community | Groundwater |
| Diamond | Grundy | 2,508 | Community | Groundwater |
| Coal City Area Club | Grundy | 2,500 | Transient non-community | Groundwater |
| Gardner | Grundy | 1,361 | Community | Groundwater |
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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 Water USA, PWSID IL3150276, Illinois”, https://aquacensus.com/water-systems/illinois/great-water-usa-il3150276 (data as of October 1, 2026).