Public water system · IL0610300
ActiveRockbridge
At a glance
Rockbridge (PWSID IL0610300) is an active community water system in Greene County, Illinois. It reports serving 180 people through 79 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in August 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
180
Service connections
79
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Rockbridge compare with other water systems in Greene County?
By EPA's size categories, Rockbridge is a very small system (500 people or fewer). Greene County has 10 active public water systems. Its population served is well below the county average of 1,252 people per system, and accounts for 1.4% of the 12,516 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 Rockbridge is well below 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. 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 Rockbridge?
EPA lists Rockbridge as owned by a local 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. 10 of the 10 active systems in Greene County (100%) are also owned by a local government.
Does Rockbridge have drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in August 2025. The violations listed here began between July 2023 and August 2025. By type: 1 public notice, recordkeeping or other, 1 reporting, 1 required treatment not met, 1 monitoring and 1 monitoring and reporting. The contaminant or rule involved most often is Lead and Copper Rule Revisions (2 of them). EPA lists 4 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-08-22 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2023-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
All 5 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.
Rockbridge: frequently asked questions
Who runs Rockbridge?
Rockbridge (PWSID IL0610300) is a community water system owned by a local government. It is regulated by the IL state drinking water program.
How many people does Rockbridge serve?
Rockbridge reports serving 180 people through 79 service connections in Greene County, Illinois.
Where does Rockbridge 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 Rockbridge have any drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in August 2025. 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 Rockbridge'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 5 violations for this system; 1 is health-based, and the most recent began in August 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Rockbridge's water quality report?
As a community water system, Rockbridge 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 Greene County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Greene County Rwd | Greene | 3,786 | Community | Purchased groundwater |
| Carrollton | Greene | 2,513 | Community | Groundwater |
| White Hall | Greene | 2,313 | Community | Groundwater |
| Roodhouse | Greene | 1,753 | Community | Groundwater |
| Greenfield | Greene | 1,097 | Community | Surface water |
| Patterson (Inc. As Wilmington) | Greene | 320 | Community | Purchased 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, “Rockbridge, PWSID IL0610300, Illinois”, https://aquacensus.com/water-systems/illinois/rockbridge-il0610300 (data as of October 1, 2026).