Public water system · TX2460120
ActiveWilliamson Travis County MUD 1
At a glance
Williamson Travis County MUD 1 (PWSID TX2460120) is an active community water system in Williamson County, Texas. It reports serving 5,793 people through 1,936 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, one is health-based, and the most recent began in December 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,793
Service connections
1,936
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Williamson Travis County MUD 1 compare with other water systems in Williamson County?
By EPA's size categories, Williamson Travis County MUD 1 is a medium system (3,301 to 10,000 people). Williamson County has 51 active public water systems. Its population served is about 58% below the county average of 13,777 people per system, and accounts for 0.8% of the 702,636 people reported by systems filed under the county. Across Texas, the 7,078 active systems average 4,789 people each. Nationally, the average active community water system reports serving 6,703 people, so Williamson Travis County MUD 1 is about 14% 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. Texas has 4,594 active community water systems, 65% of the state's 7,078 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 1,192 Texas systems (17%) list purchased surface water as their primary source.
Who owns and regulates Williamson Travis County MUD 1?
EPA lists Williamson Travis County MUD 1 as owned by a local government. The TX state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 33 of the 51 active systems in Williamson County (65%) are also owned by a local government.
Does Williamson Travis County MUD 1 have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in December 2013. The violations listed here began between June 1993 and December 2013. By type: 6 public notice, recordkeeping or other, 5 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (7 of them). EPA lists 9 as resolved and 3 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 |
|---|---|---|---|---|
| 2013-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2007-07-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2007-03-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-11-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2006-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2006-03-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2005-11-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-04-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2002-12-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1993-07-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1993-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1993-06-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Total coliform bacteria (TCR)code 3100 | 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.
Williamson Travis County MUD 1: frequently asked questions
Who runs Williamson Travis County MUD 1?
Williamson Travis County MUD 1 (PWSID TX2460120) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does Williamson Travis County MUD 1 serve?
Williamson Travis County MUD 1 reports serving 5,793 people through 1,936 service connections in Williamson County, Texas.
Where does Williamson Travis County MUD 1 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 Williamson Travis County MUD 1 have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in December 2013. 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 Williamson Travis County MUD 1'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, one is health-based, and the most recent began in December 2013. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find Williamson Travis County MUD 1's water quality report?
As a community water system, Williamson Travis County MUD 1 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 |
|---|---|---|---|---|
| City of Georgetown | Williamson | 191,639 | Community | Surface water |
| City of Round Rock | Williamson | 130,662 | Community | Surface water |
| City of Leander | Williamson | 98,330 | Community | Surface water |
| City of Cedar Park | Williamson | 86,939 | Community | Surface water |
| Jonah Water Sud | Williamson | 29,861 | Community | Purchased surface water |
| City of Hutto | Williamson | 29,580 | 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, “Williamson Travis County MUD 1, PWSID TX2460120, Texas”, https://aquacensus.com/water-systems/texas/williamson-travis-county-mud-1-tx2460120 (data as of October 1, 2026).