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Public water system · IL3110163

Active

Mascoutin Sra

At a glance

Mascoutin Sra (PWSID IL3110163) is an active transient non-community water system in De Witt County, Illinois. It reports serving 500 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in April 2025.

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

Population served

500

Service connections

1

Primary source

GW

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDIL3110163
System typeTransient non-community water system
Activity statusActive
Population served500
Service connections1
Primary water sourceGroundwater
Owner typeState government
Primacy agencyIL state drinking water program
City served—
StateIllinois
ZIP—
CountyDe Witt County

How does Mascoutin Sra compare with other water systems in De Witt County?

By EPA's size categories, Mascoutin Sra is a very small system (500 people or fewer). De Witt County has 14 active public water systems, and Mascoutin Sra is the 5th-largest of them by population served. Its population served is about 43% below the county average of 884 people per system, and accounts for 4% of the 12,370 people reported by systems filed under the county. Across Illinois, the 3,872 active systems average 3,204 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Mascoutin Sra is about 3.5 times that figure.

What does “transient non-community water system” mean?

A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Illinois has 1,703 active transient non-community water systems, 44% 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 Mascoutin Sra?

EPA lists Mascoutin Sra as owned by a state 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. 2 of the 14 active systems in De Witt County (14%) are also owned by a state government.

Does Mascoutin Sra have drinking water violations?

EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in April 2025. The violations listed here began between January 2011 and April 2025. By type: 3 required treatment not met, 2 public notice, recordkeeping or other, 1 monitoring and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Revised Total Coliform Rule (4 of them). EPA lists 4 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.

BeganViolationContaminant or ruleHealth-basedStatus
2025-04-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2024-07-07Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75Public Noticecode 7500NoUnaddressed
2024-04-02Required treatment not metTreatment Technique Startup Procedures (RTCR) · code 2DRevised Total Coliform Rulecode 8000YesResolved
2022-09-10Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75Public Noticecode 7500NoUnaddressed
2022-07-01Required treatment not metTreatment Technique Startup Procedures (RTCR) · code 2DRevised Total Coliform Rulecode 8000YesResolved
2021-07-01Required treatment not metTreatment Technique Startup Procedures (RTCR) · code 2DRevised Total Coliform Rulecode 8000YesResolved
2011-01-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21Total coliform bacteria (TCR)code 3100YesArchived

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.

Mascoutin Sra: frequently asked questions

Who runs Mascoutin Sra?

Mascoutin Sra (PWSID IL3110163) is a transient non-community water system owned by a state government. It is regulated by the IL state drinking water program.

How many people does Mascoutin Sra serve?

Mascoutin Sra reports serving 500 people through 1 service connection in De Witt County, Illinois.

Where does Mascoutin Sra 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 Mascoutin Sra have any drinking water violations?

EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in April 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 Mascoutin Sra'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; 4 are health-based, and the most recent began in April 2025. For current results, consult EPA ECHO, or the IL state drinking water program.

Where can I find Mascoutin Sra's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Mascoutin Sra is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.

Other water systems in De Witt County

Water systemCountyPopulation servedTypeSource
ClintonDe Witt7,200CommunityGroundwater
Farmer CityDe Witt1,811CommunityGroundwater
Constellation Clinton Power StationDe Witt515Non-transient non-communitySurface water
WapellaDe Witt513CommunityGroundwater
WeldonDe Witt404CommunityGroundwater
KenneyDe Witt400CommunityGroundwater

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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, “Mascoutin Sra, PWSID IL3110163, Illinois”, https://aquacensus.com/water-systems/illinois/mascoutin-sra-il3110163 (data as of October 1, 2026).