Public water system · NC0190010

Active

Monroe, City of

At a glance

City of Monroe (PWSID NC0190010) is an active community water system in Union County, North Carolina. It reports serving 43,081 people through 13,064 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, one is health-based, and the most recent began in August 2025.

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

Population served

43,081

Service connections

13,064

Primary source

Surface water

System type

CWS

Community water system

System record

PWSIDNC0190010

System typeCommunity water system

Activity statusActive

Population served43,081

Service connections13,064

Primary water sourceSurface water

Owner typeLocal government

Primacy agencyNC state drinking water program

City servedMonroe

StateNorth Carolina

ZIP—

CountyUnion County

How does City of Monroe compare with other water systems in Union County?

By EPA's size categories, City of Monroe is a large system (10,001 to 100,000 people). Union County has 41 active public water systems, and City of Monroe is the 2nd-largest of them by population served. Its population served is about 7.9 times the county average of 5,454 people per system, and accounts for 19% of the 223,624 people reported by systems filed under the county. Across North Carolina, the 5,087 active systems average 1,971 people each. Nationally, the average active community water system reports serving 6,703 people, so City of Monroe is about 6.4 times 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. North Carolina has 2,031 active community water systems, 40% of the state's 5,087 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 132 North Carolina systems (2.6%) list surface water as their primary source.

Who owns and regulates City of Monroe?

EPA lists City of Monroe as owned by a local government. The NC state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 8 of the 41 active systems in Union County (20%) are also owned by a local government.

Does City of Monroe have drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in August 2025. The violations listed here began between July 2004 and August 2025. By type: 6 monitoring and reporting, 3 public notice, recordkeeping or other, 2 reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Revised Total Coliform Rule (3 of them). EPA lists 11 as resolved and 1 as addressed. 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. Addressed means the violation is not resolved or archived and is covered by formal enforcement.

Began	Violation	Contaminant or rule	Health-based	Status
2025-08-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, E. coli (RTCR) · code 1A	Revised Total Coliform Rulecode 8000	Yes	Resolved
2025-04-11	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Resolved
2024-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2024-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2020-05-11	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Addressed
2010-03-13	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2008-10-01	Monitoring and reportingMonitoring, Regular · code 03	2,4-Dcode 2105	No	Resolved
2007-04-19	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2006-01-01	Monitoring and reportingMonitoring, Regular · code 03	Dalaponcode 2031	No	Resolved
2005-10-27	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2005-10-01	Monitoring and reportingMonitoring, Regular · code 03	Dalaponcode 2031	No	Resolved
2004-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Carbon, totalcode 2920	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.

City of Monroe: frequently asked questions

Who runs City of Monroe?

City of Monroe (PWSID NC0190010) is a community water system owned by a local government. It is regulated by the NC state drinking water program.

How many people does City of Monroe serve?

City of Monroe reports serving 43,081 people through 13,064 service connections in Union County, North Carolina.

Where does City of Monroe 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 City of Monroe have any drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in August 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 City of Monroe'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, one is health-based, and the most recent began in August 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the NC state drinking water program.

Where can I find City of Monroe's water quality report?

As a community water system, City of Monroe 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 Union County

Water system	County	Population served	Type	Source
Union County Water System	Union	169,685	Community	Surface water
Wingate, Town of	Union	3,950	Community	Purchased surface water
Marshville, Town of	Union	3,163	Community	Purchased surface water
Jaars, Inc.	Union	625	Community	Groundwater
Glencroft S/D	Union	380	Community	Purchased surface water
Mill Creek Baptist Church	Union	310	Transient non-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, “Monroe, City of, PWSID NC0190010, North Carolina”, https://aquacensus.com/water-systems/north-carolina/monroe-city-of-nc0190010 (data as of October 1, 2026).