Public water system · IL1390300

Active

Sullivan

At a glance

Sullivan (PWSID IL1390300) is an active community water system in Moultrie County, Illinois. It reports serving 4,729 people through 2,343 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; 1 is health-based, and the most recent began in July 2025.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

4,729

Service connections

2,343

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDIL1390300

System typeCommunity water system

Activity statusActive

Population served4,729

Service connections2,343

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyIL state drinking water program

City servedSullivan

StateIllinois

ZIP—

CountyMoultrie County

How does Sullivan compare with other water systems in Moultrie County?

By EPA's size categories, Sullivan is a medium system (3,301 to 10,000 people). Moultrie County has 7 active public water systems, and Sullivan is the largest of them by population served. Its population served is about 163% above the county average of 1,801 people per system, and accounts for 38% of the 12,607 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 Sullivan is about 29% 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. 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 Sullivan?

EPA lists Sullivan 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 7 active systems in Moultrie County (86%) are also owned by a local government.

Does Sullivan have drinking water violations?

EPA's records list 7 violations for this system; 1 is health-based, and the most recent began in July 2025. The violations listed here began between June 1977 and July 2025. By type: 4 monitoring and reporting, 2 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Lead and Copper Rule (3 of them). EPA lists 5 as resolved, 1 as unaddressed 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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
2025-07-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Unaddressed
2024-07-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2023-10-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2017-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2008-10-08	Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72	Consumer Confidence Rulecode 7000	No	Resolved
2007-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
1977-06-30	Monitoring and reportingMonitoring, Regular · code 03	Gross alpha (excluding radon and uranium)code 4000	No	Archived

All 7 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.

Sullivan: frequently asked questions

Who runs Sullivan?

Sullivan (PWSID IL1390300) is a community water system owned by a local government. It is regulated by the IL state drinking water program.

How many people does Sullivan serve?

Sullivan reports serving 4,729 people through 2,343 service connections in Moultrie County, Illinois.

Where does Sullivan 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 Sullivan have any drinking water violations?

EPA's records list 7 violations for this system; 1 is health-based, and the most recent began in July 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 Sullivan'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 7 violations for this system; 1 is health-based, and the most recent began in July 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 Sullivan's water quality report?

As a community water system, Sullivan 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 Moultrie County

Water system	County	Population served	Type	Source
Moultrie County Rwd	Moultrie	2,600	Community	Purchased surface water
Arthur	Moultrie	2,300	Community	Groundwater
Bethany	Moultrie	1,475	Community	Groundwater
Lovington	Moultrie	1,024	Community	Groundwater
Dalton City	Moultrie	454	Community	Purchased groundwater
Clean Machine Sullivan	Moultrie	25	Transient non-community	Purchased surface water

Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.

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, “Sullivan, PWSID IL1390300, Illinois”, https://aquacensus.com/water-systems/illinois/sullivan-il1390300 (data as of October 1, 2026).