Public water system · NC0190413
ActiveUnion County Water System
At a glance
Union County Water System (PWSID NC0190413) is an active community water system in Union County, North Carolina. It reports serving 169,685 people through 66,805 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, 5 are health-based, and the most recent began in July 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
169,685
Service connections
66,805
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Union County Water System compare with other water systems in Union County?
By EPA's size categories, Union County Water System is a very large system (more than 100,000 people). Union County has 41 active public water systems, and Union County Water System is the largest of them by population served. Its population served is about 31 times the county average of 5,454 people per system, and accounts for 76% 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 Union County Water System is about 25 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 Union County Water System?
EPA lists Union County Water System 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 Union County Water System have drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in July 2024. The violations listed here began between October 1980 and July 2024. By type: 5 contaminant level above the legal limit, 3 public notice, recordkeeping or other, 3 monitoring and reporting and 1 reporting. The contaminant or rule involved most often is Haloacetic acids (HAA5) (3 of them). EPA lists 11 as resolved 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. 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 |
|---|---|---|---|---|
| 2024-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2020-03-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, E. coli (RTCR) · code 1A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2018-10-11 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2010-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2009-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-02-08 | Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76 | Public Noticecode 7500 | No | Resolved |
| 2003-10-15 | Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76 | Public Noticecode 7500 | No | Resolved |
| 2003-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2003-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 1993-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1980-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross Beta Particle Activitycode 4100 | No | Archived |
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.
Union County Water System: frequently asked questions
Who runs Union County Water System?
Union County Water System (PWSID NC0190413) is a community water system owned by a local government. It is regulated by the NC state drinking water program.
How many people does Union County Water System serve?
Union County Water System reports serving 169,685 people through 66,805 service connections in Union County, North Carolina.
Where does Union County Water System 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 Union County Water System have any drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in July 2024. 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 Union County Water System'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, 5 are health-based, and the most recent began in July 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the NC state drinking water program.
Where can I find Union County Water System's water quality report?
As a community water system, Union County Water System 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 |
|---|---|---|---|---|
| Monroe, City of | Union | 43,081 | 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, “Union County Water System, PWSID NC0190413, North Carolina”, https://aquacensus.com/water-systems/north-carolina/union-county-water-system-nc0190413 (data as of October 1, 2026).