Public water system · TN0000247
ActiveMilcrofton Utility District
At a glance
Milcrofton Utility District (PWSID TN0000247) is an active community water system in Williamson County, Tennessee. It reports serving 38,032 people through 13,298 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 6 violations for this system; 4 are health-based, and the most recent began in April 2011.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
38,032
Service connections
13,298
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Milcrofton Utility District compare with other water systems in Williamson County?
By EPA's size categories, Milcrofton Utility District is a large system (10,001 to 100,000 people). Williamson County has 7 active public water systems, and Milcrofton Utility District is the 3rd-largest of them by population served. Its population served is roughly in line with the county average of 35,917 people per system, and accounts for 15% of the 251,417 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 Milcrofton Utility District is about 5.7 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. 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 Milcrofton Utility District?
EPA lists Milcrofton Utility District 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 7 active systems in Williamson County (86%) are also owned by a local government.
Does Milcrofton Utility District have drinking water violations?
EPA's records list 6 violations for this system; 4 are health-based, and the most recent began in April 2011. The violations listed here began between October 1990 and April 2011. By type: 4 contaminant level above the legal limit and 2 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 4 as resolved and 2 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 |
|---|---|---|---|---|
| 2011-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2008-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2008-07-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2002-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1990-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
All 6 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.
Milcrofton Utility District: frequently asked questions
Who runs Milcrofton Utility District?
Milcrofton Utility District (PWSID TN0000247) is a community water system owned by a local government. It is regulated by the TN state drinking water program.
How many people does Milcrofton Utility District serve?
Milcrofton Utility District reports serving 38,032 people through 13,298 service connections in Williamson County, Tennessee.
Where does Milcrofton Utility District 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 Milcrofton Utility District have any drinking water violations?
EPA's records list 6 violations for this system; 4 are health-based, and the most recent began in April 2011. 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 Milcrofton Utility District'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 6 violations for this system; 4 are health-based, and the most recent began in April 2011. For current results, consult the system's annual water quality report, EPA ECHO, or the TN state drinking water program.
Where can I find Milcrofton Utility District's water quality report?
As a community water system, Milcrofton Utility District 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 Williamson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Franklin Water Dept | Williamson | 77,222 | Community | Surface water |
| H.B.& T.S. Utility District | Williamson | 40,094 | Community | Purchased surface water |
| Nolensville-College Grove U.D. | Williamson | 34,159 | Community | Purchased surface water |
| Brentwood Water Department | Williamson | 30,493 | Community | Purchased surface water |
| Mallory Valley U.D. | Williamson | 30,347 | Community | Purchased surface water |
| Gateway Utility Company, Inc.. | Williamson | 1,070 | Community | Purchased 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, “Milcrofton Utility District, PWSID TN0000247, Tennessee”, https://aquacensus.com/water-systems/tennessee/milcrofton-utility-district-tn0000247 (data as of October 1, 2026).