Public water system · IL1350400

Active

Litchfield

At a glance

Litchfield (PWSID IL1350400) is an active community water system in Montgomery County, Illinois. It reports serving 6,648 people through 3,246 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in January 2026.

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

Population served

6,648

Service connections

3,246

Primary source

Surface water

System type

CWS

Community water system

System record

PWSIDIL1350400

System typeCommunity water system

Activity statusActive

Population served6,648

Service connections3,246

Primary water sourceSurface water

Owner typeLocal government

Primacy agencyIL state drinking water program

City served—

StateIllinois

ZIP—

CountyMontgomery County

How does Litchfield compare with other water systems in Montgomery County?

By EPA's size categories, Litchfield is a medium system (3,301 to 10,000 people). Montgomery County has 24 active public water systems, and Litchfield is the largest of them by population served. Its population served is about 5.7 times the county average of 1,170 people per system, and accounts for 24% of the 28,090 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 Litchfield is roughly in line with 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 89 Illinois systems (2.3%) list surface water as their primary source.

Who owns and regulates Litchfield?

EPA lists Litchfield 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. 16 of the 24 active systems in Montgomery County (67%) are also owned by a local government.

Does Litchfield have drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in January 2026. The violations listed here began between April 2023 and January 2026. By type: 6 monitoring and reporting, 3 required treatment not met, 2 public notice, recordkeeping or other and 1 reporting. The contaminant or rule involved most often is Interim Enhanced Surface Water Treatment Rule (5 of them). EPA lists 9 as resolved, 2 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
2026-01-01	Monitoring and reportingMonitoring, Regular · code 03	Atrazinecode 2050	No	Archived
2025-12-26	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2025-12-01	Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44	Interim Enhanced Surface Water Treatment Rulecode 0300	Yes	Resolved
2025-11-01	Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44	Interim Enhanced Surface Water Treatment Rulecode 0300	Yes	Resolved
2025-10-01	Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44	Interim Enhanced Surface Water Treatment Rulecode 0300	Yes	Resolved
2025-09-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved
2025-07-02	ReportingNotification, Known or Potential LSL · code 4H	Lead and Copper Rule Revisionscode 5200	No	Unaddressed
2025-07-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved
2025-07-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved
2025-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72	Consumer Confidence Rulecode 7000	No	Unaddressed
2023-04-01	Monitoring and reportingMonitoring, Regular · code 03	Carbofurancode 2046	No	Resolved
2023-04-01	Monitoring and reportingMonitoring, Regular · code 03	2,4-Dcode 2105	No	Resolved

The 12 most recent 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.

Litchfield: frequently asked questions

Who runs Litchfield?

Litchfield (PWSID IL1350400) is a community water system owned by a local government. It is regulated by the IL state drinking water program.

How many people does Litchfield serve?

Litchfield reports serving 6,648 people through 3,246 service connections in Montgomery County, Illinois.

Where does Litchfield get its water?

EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.

Does Litchfield have any drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in January 2026. 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 Litchfield'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. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.

Where can I find Litchfield's water quality report?

As a community water system, Litchfield 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 Montgomery County

Water system	County	Population served	Type	Source
Hillsboro	Montgomery	4,402	Community	Surface water
Nokomis	Montgomery	2,370	Community	Groundwater
Graham Correctional Site	Montgomery	2,155	Community	Purchased surface water
Ej Water-Mcwc	Montgomery	2,075	Community	Purchased surface water
Henderson PWD	Montgomery	2,045	Community	Purchased surface water
Suburban Hospital	Montgomery	1,900	Non-transient non-community	Purchased surface water

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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, “Litchfield, PWSID IL1350400, Illinois”, https://aquacensus.com/water-systems/illinois/litchfield-il1350400 (data as of October 1, 2026).