Public water system · IL0810010
ActiveNortheast Mount Vernon Water Company
At a glance
Northeast Mount Vernon Water Company (PWSID IL0810010) is an active community water system in Jefferson County, Illinois. It reports serving 5,483 people through 2,193 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in December 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,483
Service connections
2,193
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Northeast Mount Vernon Water Company compare with other water systems in Jefferson County?
By EPA's size categories, Northeast Mount Vernon Water Company is a medium system (3,301 to 10,000 people). Jefferson County has 14 active public water systems, and Northeast Mount Vernon Water Company is the 2nd-largest of them by population served. Its population served is about twice the county average of 2,544 people per system, and accounts for 15% of the 35,609 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 Northeast Mount Vernon Water Company is about 18% 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 619 Illinois systems (16%) list purchased surface water as their primary source.
Who owns and regulates Northeast Mount Vernon Water Company?
EPA lists Northeast Mount Vernon Water Company as privately owned. 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. 5 of the 14 active systems in Jefferson County (36%) are also privately owned.
Does Northeast Mount Vernon Water Company have drinking water violations?
EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in December 2020. The violations listed here began between April 1993 and December 2020. By type: 8 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). EPA lists 7 as resolved and 2 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 |
|---|---|---|---|---|
| 2020-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2008-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2004-09-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2002-10-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2000-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1998-05-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1998-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1993-04-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
All 9 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.
Northeast Mount Vernon Water Company: frequently asked questions
Who runs Northeast Mount Vernon Water Company?
Northeast Mount Vernon Water Company (PWSID IL0810010) is a community water system privately owned. It is regulated by the IL state drinking water program.
How many people does Northeast Mount Vernon Water Company serve?
Northeast Mount Vernon Water Company reports serving 5,483 people through 2,193 service connections in Jefferson County, Illinois.
Where does Northeast Mount Vernon Water Company get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Northeast Mount Vernon Water Company have any drinking water violations?
EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in December 2020. 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 Northeast Mount Vernon Water Company'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 9 violations for this system; 1 is health-based, and the most recent began in December 2020. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Northeast Mount Vernon Water Company's water quality report?
As a community water system, Northeast Mount Vernon Water Company 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 Jefferson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mount Vernon | Jefferson | 15,793 | Community | Purchased surface water |
| Woodlawn | Jefferson | 3,587 | Community | Purchased surface water |
| Dix-Kell Water Commssion | Jefferson | 1,972 | Community | Purchased surface water |
| Belle Rive | Jefferson | 1,930 | Community | Purchased surface water |
| Waltonville | Jefferson | 1,901 | Community | Purchased surface water |
| Bluford | Jefferson | 1,880 | 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, “Northeast Mount Vernon Water Company, PWSID IL0810010, Illinois”, https://aquacensus.com/water-systems/illinois/northeast-mount-vernon-water-company-il0810010 (data as of October 1, 2026).