Public water system · TN0000510
ActiveNiota Water System
At a glance
Niota Water System (PWSID TN0000510) is an active community water system in McMinn County, Tennessee. It reports serving 3,932 people through 1,592 service connections. Its primary water source is purchased groundwater under influence, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; none is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,932
Service connections
1,592
Primary source
GUP
Purchased groundwater under influence
System type
CWS
Community water system
System record
How does Niota Water System compare with other water systems in McMinn County?
By EPA's size categories, Niota Water System is a medium system (3,301 to 10,000 people). McMinn County has 11 active public water systems, and Niota Water System is the 3rd-largest of them by population served. Its population served is about 21% below the county average of 4,958 people per system, and accounts for 7.2% of the 54,536 people reported by systems filed under the county. Across Tennessee, the 1,383 active systems average 5,780 people each. Nationally, the average active community water system reports serving 6,703 people, so Niota Water System is about 41% 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. Tennessee has 450 active community water systems, 33% of the state's 1,383 active systems. Purchased groundwater under the influence of surface water means the system buys that kind of water from another public water system. 7 Tennessee systems (0.5%) list purchased groundwater under influence as their primary source.
Who owns and regulates Niota Water System?
EPA lists Niota Water System as owned by a local government. The TN state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 6 of the 11 active systems in McMinn County (55%) are also owned by a local government.
Does Niota Water System have drinking water violations?
EPA's records list 11 violations for this system; none is health-based, and the most recent began in July 2025. The violations listed here began between June 1980 and July 2025. By type: 6 monitoring and reporting, 3 monitoring and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Revised Total Coliform Rule (3 of them). EPA lists 7 as resolved and 4 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 |
|---|---|---|---|---|
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2021-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2013-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Archived |
| 2013-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Archived |
| 2005-03-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1999-10-19 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1991-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1980-06-24 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 11 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.
Niota Water System: frequently asked questions
Who runs Niota Water System?
Niota Water System (PWSID TN0000510) is a community water system owned by a local government. It is regulated by the TN state drinking water program.
How many people does Niota Water System serve?
Niota Water System reports serving 3,932 people through 1,592 service connections in McMinn County, Tennessee.
Where does Niota Water System get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater under influence. Purchased groundwater under the influence of surface water means the system buys that kind of water from another public water system.
Does Niota Water System have any drinking water violations?
EPA's records list 11 violations for this system; none is health-based, and the most recent began in July 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 Niota 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. EPA's records list 11 violations for this system; none is health-based, and the most recent began in July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the TN state drinking water program.
Where can I find Niota Water System's water quality report?
As a community water system, Niota 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 McMinn County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Athens Utilities Board | McMinn | 26,424 | Community | Surface water |
| Etowah Utilities | McMinn | 12,851 | Community | Surface water |
| Englewood Water Dept | McMinn | 3,917 | Community | Surface water |
| Riceville Utility District | McMinn | 3,843 | Community | Purchased surface water |
| Calhoun-Charleston U.D. | McMinn | 2,959 | Community | Purchased surface water |
| Resolute Forest Products | McMinn | 200 | Non-transient non-community | 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, “Niota Water System, PWSID TN0000510, Tennessee”, https://aquacensus.com/water-systems/tennessee/niota-water-system-tn0000510 (data as of October 1, 2026).