Public water system · IL1070500

Active

Middletown

At a glance

Middletown (PWSID IL1070500) is an active community water system in Logan County, Illinois. It reports serving 330 people through 160 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 September 2025.

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

Population served

330

Service connections

160

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDIL1070500

System typeCommunity water system

Activity statusActive

Population served330

Service connections160

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyIL state drinking water program

City servedMiddletown

StateIllinois

ZIP—

CountyLogan County

How does Middletown compare with other water systems in Logan County?

By EPA's size categories, Middletown is a very small system (500 people or fewer). Logan County has 20 active public water systems. Its population served is well below the county average of 1,203 people per system, and accounts for 1.4% of the 24,058 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 Middletown 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. 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 Middletown?

EPA lists Middletown 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 20 active systems in Logan County (50%) are also owned by a local government.

Does Middletown have drinking water violations?

EPA's records list 7 violations for this system; 1 is health-based, and the most recent began in September 2025. The violations listed here began between July 2003 and September 2025. By type: 5 monitoring and reporting, 1 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Lead and Copper Rule (4 of them). EPA lists 7 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
2025-09-01	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2024-10-17	Required treatment not metLSL Inventory · code 2E	Lead and Copper Rule Revisionscode 5200	Yes	Resolved
2022-12-30	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2015-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2011-01-02	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2004-01-01	Monitoring and reportingWater Quality Parameter M/R · code 53	Lead and Copper Rulecode 5000	No	Resolved
2003-07-01	Monitoring and reportingWater Quality Parameter M/R · code 53	Lead and Copper Rulecode 5000	No	Resolved

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.

Middletown: frequently asked questions

Who runs Middletown?

Middletown (PWSID IL1070500) is a community water system owned by a local government. It is regulated by the IL state drinking water program.

How many people does Middletown serve?

Middletown reports serving 330 people through 160 service connections in Logan County, Illinois.

Where does Middletown 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 Middletown have any drinking water violations?

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

As a community water system, Middletown 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 Logan County

Water system	County	Population served	Type	Source
Il American-Lincoln	Logan	15,200	Community	Groundwater under influence of surface water
Atlanta	Logan	1,692	Community	Groundwater
Il American-Mount Pulaski	Logan	1,506	Community	Groundwater
Logan Correctional Center	Logan	1,500	Community	Purchased groundwater
Lincoln Correctional Center	Logan	1,036	Community	Purchased groundwater
Elkhart	Logan	565	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, “Middletown, PWSID IL1070500, Illinois”, https://aquacensus.com/water-systems/illinois/middletown-il1070500 (data as of October 1, 2026).