Public water system · TX2270379
ActiveTravis County MUD 11
At a glance
Travis County MUD 11 (PWSID TX2270379) is an active community water system in Travis County, Texas. It reports serving 1,437 people through 479 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,437
Service connections
479
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Travis County MUD 11 compare with other water systems in Travis County?
By EPA's size categories, Travis County MUD 11 is a small system (501 to 3,300 people). Travis County has 138 active public water systems. Its population served is well below the county average of 11,267 people per system, and accounts for less than 0.1% of the 1,554,848 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 Travis County MUD 11 is well 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 Travis County MUD 11?
EPA lists Travis County MUD 11 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. 66 of the 138 active systems in Travis County (48%) are also owned by a local government.
Does Travis County MUD 11 have drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in January 2026. The violations listed here began between December 2013 and January 2026. By type: 3 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Lead and Copper Rule (2 of them). EPA lists 3 as resolved and 1 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 |
|---|---|---|---|---|
| 2026-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2020-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2017-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2013-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
All 4 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.
Travis County MUD 11: frequently asked questions
Who runs Travis County MUD 11?
Travis County MUD 11 (PWSID TX2270379) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does Travis County MUD 11 serve?
Travis County MUD 11 reports serving 1,437 people through 479 service connections in Travis County, Texas.
Where does Travis County MUD 11 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 Travis County MUD 11 have any drinking water violations?
EPA's records list 4 violations for this system; 1 is health-based, and the most recent began in January 2026. 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 Travis County MUD 11'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 4 violations for this system; 1 is health-based, and the most recent began in January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find Travis County MUD 11's water quality report?
As a community water system, Travis County MUD 11 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 Travis County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Austin Water & Wastewater | Travis | 1,115,323 | Community | Surface water |
| City of Pflugerville | Travis | 63,464 | Community | Surface water |
| Travis County Wcid 17 | Travis | 45,165 | Community | Surface water |
| Manville WSC | Travis | 39,648 | Community | Purchased surface water |
| West Travis County Public Utility Agency | Travis | 35,664 | Community | Surface water |
| Windermere Community | Travis | 21,231 | Community | Purchased surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Travis County MUD 11, PWSID TX2270379, Texas”, https://aquacensus.com/water-systems/texas/travis-county-mud-11-tx2270379 (data as of October 1, 2026).