Public water system · TN0000442
ActiveMaynardville Water Dept
At a glance
Maynardville Water Dept (PWSID TN0000442) is an active community water system in Union County, Tennessee. It reports serving 7,940 people through 3,042 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in July 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
7,940
Service connections
3,042
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Maynardville Water Dept compare with other water systems in Union County?
By EPA's size categories, Maynardville Water Dept is a medium system (3,301 to 10,000 people). Union County has 10 active public water systems, and Maynardville Water Dept is the 2nd-largest of them by population served. Its population served is about 4 times the county average of 1,986 people per system, and accounts for 40% of the 19,856 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 Maynardville Water Dept is about 18% above 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 surface water means the system buys surface water from another public water system rather than drawing its own. 121 Tennessee systems (8.7%) list purchased surface water as their primary source.
Who owns and regulates Maynardville Water Dept?
EPA lists Maynardville Water Dept 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. 2 of the 10 active systems in Union County (20%) are also owned by a local government.
Does Maynardville Water Dept have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in July 2023. The violations listed here began between October 2010 and July 2023. By type: 6 monitoring and reporting, 4 public notice, recordkeeping or other and 2 required treatment not met. The contaminant or rule involved most often is Surface Water Treatment Rule (3 of them). EPA lists 12 as resolved. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2023-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2023-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2023-04-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2022-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2022-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2022-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2021-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2021-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2012-02-01 | Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2011-03-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2011-02-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2010-10-13 | Public notice, recordkeeping or otherRecord Keeping · code 09 | Interim Enhanced Surface Water Treatment Rulecode 0300 | 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.
Maynardville Water Dept: frequently asked questions
Who runs Maynardville Water Dept?
Maynardville Water Dept (PWSID TN0000442) is a community water system owned by a local government. It is regulated by the TN state drinking water program.
How many people does Maynardville Water Dept serve?
Maynardville Water Dept reports serving 7,940 people through 3,042 service connections in Union County, Tennessee.
Where does Maynardville Water Dept 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 Maynardville Water Dept have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in July 2023. 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 Maynardville Water Dept'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, 2 are health-based, and the most recent began in July 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the TN state drinking water program.
Where can I find Maynardville Water Dept's water quality report?
As a community water system, Maynardville Water Dept 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 |
|---|---|---|---|---|
| Luttrell-Blaine-Corryton U.D. | Union | 10,529 | Community | Surface water |
| Beach Island Marina | Union | 500 | Transient non-community | Groundwater |
| Old Hickory Wat Co-Union County | Union | 342 | Community | Purchased surface water |
| Loyston Point P.U.A.,Tva | Union | 150 | Transient non-community | Groundwater |
| Leadmine Bend Water Assoc. | Union | 120 | Community | Groundwater |
| Union County Boat Dock | Union | 100 | 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, “Maynardville Water Dept, PWSID TN0000442, Tennessee”, https://aquacensus.com/water-systems/tennessee/maynardville-water-dept-tn0000442 (data as of October 1, 2026).