Public water system · TN0000494
ActiveMetro Water Services
At a glance
Metro Water Services (PWSID TN0000494) is an active community water system in Davidson County, Tennessee. It reports serving 778,153 people through 336,863 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; 2 are health-based, and the most recent began in June 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
778,153
Service connections
336,863
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Metro Water Services compare with other water systems in Davidson County?
By EPA's size categories, Metro Water Services is a very large system (more than 100,000 people). Davidson County has 4 active public water systems, and Metro Water Services is the largest of them by population served. Its population served is about 3.4 times the county average of 231,370 people per system, and accounts for 84% of the 925,478 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 Metro Water Services is about 116 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. Tennessee has 450 active community water systems, 33% of the state's 1,383 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 151 Tennessee systems (11%) list surface water as their primary source.
Who owns and regulates Metro Water Services?
EPA lists Metro Water Services 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. 3 of the 4 active systems in Davidson County (75%) are also owned by a local government.
Does Metro Water Services have drinking water violations?
EPA's records list 8 violations for this system; 2 are health-based, and the most recent began in June 2024. The violations listed here began between October 2002 and June 2024. By type: 4 monitoring and reporting, 2 monitoring and 2 required treatment not met. The contaminant or rule involved most often is Revised Total Coliform Rule (2 of them). EPA lists 8 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 |
|---|---|---|---|---|
| 2024-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2012-02-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2005-07-01 | Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2002-10-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
All 8 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.
Metro Water Services: frequently asked questions
Who runs Metro Water Services?
Metro Water Services (PWSID TN0000494) is a community water system owned by a local government. It is regulated by the TN state drinking water program.
How many people does Metro Water Services serve?
Metro Water Services reports serving 778,153 people through 336,863 service connections in Davidson County, Tennessee.
Where does Metro Water Services 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 Metro Water Services have any drinking water violations?
EPA's records list 8 violations for this system; 2 are health-based, and the most recent began in June 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 Metro Water Services' 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 8 violations for this system; 2 are health-based, and the most recent began in June 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the TN state drinking water program.
Where can I find Metro Water Services' water quality report?
As a community water system, Metro Water Services 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 Davidson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Madison Suburban U.D. | Davidson | 81,203 | Community | Surface water |
| Harpeth Valley U.D. | Davidson | 65,518 | Community | Surface water |
| Sontara Old Hickory, Inc.. | Davidson | 604 | 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, “Metro Water Services, PWSID TN0000494, Tennessee”, https://aquacensus.com/water-systems/tennessee/metro-water-services-tn0000494 (data as of October 1, 2026).