Public water system · IL0230010
ActiveClark-Edgar Rwd
At a glance
Clark-Edgar Rwd (PWSID IL0230010) is an active community water system in Clark County, Illinois. It reports serving 9,657 people through 3,219 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 3 violations for this system; none is health-based, and the most recent began in July 2011.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
9,657
Service connections
3,219
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Clark-Edgar Rwd compare with other water systems in Clark County?
By EPA's size categories, Clark-Edgar Rwd is a medium system (3,301 to 10,000 people). Clark County has 9 active public water systems, and Clark-Edgar Rwd is the largest of them by population served. Its population served is about 4.1 times the county average of 2,364 people per system, and accounts for 45% of the 21,277 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 Clark-Edgar Rwd is about 44% above 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,808 Illinois systems (73%) list groundwater as their primary source.
Who owns and regulates Clark-Edgar Rwd?
EPA lists Clark-Edgar Rwd 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. 6 of the 9 active systems in Clark County (67%) are also owned by a local government.
Does Clark-Edgar Rwd have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in July 2011. The violations listed here began between February 1999 and July 2011. By type: 2 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminants or rules involved are Consumer Confidence Rule, Chlorine and Total coliform bacteria (TCR). EPA lists 2 as resolved and 1 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2011-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2010-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 1999-02-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 3 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.
Clark-Edgar Rwd: frequently asked questions
Who runs Clark-Edgar Rwd?
Clark-Edgar Rwd (PWSID IL0230010) is a community water system owned by a local government. It is regulated by the IL state drinking water program.
How many people does Clark-Edgar Rwd serve?
Clark-Edgar Rwd reports serving 9,657 people through 3,219 service connections in Clark County, Illinois.
Where does Clark-Edgar Rwd get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Clark-Edgar Rwd have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in July 2011. 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 Clark-Edgar Rwd'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 3 violations for this system; none is health-based, and the most recent began in July 2011. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Clark-Edgar Rwd's water quality report?
As a community water system, Clark-Edgar Rwd 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 Clark County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Marshall | Clark | 3,947 | Community | Groundwater |
| Casey | Clark | 3,274 | Community | Purchased groundwater |
| Blue Diamond Rainbow Sw Plaza Water | Clark | 1,871 | Non-transient non-community | Groundwater |
| Martinsville | Clark | 1,200 | Community | Purchased groundwater |
| Westfield | Clark | 678 | Community | Purchased groundwater |
| Union-York Water District | Clark | 600 | 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, “Clark-Edgar Rwd, PWSID IL0230010, Illinois”, https://aquacensus.com/water-systems/illinois/clark-edgar-rwd-il0230010 (data as of October 1, 2026).