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Community Water System · PWS TX2270333

Travis County MUD 10

Austin, Texas 78734-2622 - drinking water served from surface water sources to 490 people, tracked in EPA SDWIS and UCMR5.

490
People served
147
EPA violations
93
Health-based
Untested
UCMR5 result

The verdict

EPA records 147 drinking-water violations at Travis County MUD 10, 63% of them health-based - above the Texas per-system average.

147
Total EPA violations on record
63%
Health-based (MCL / treatment failure)
490
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Travis County MUD 10

Travis County MUD 10 is a local-owned community water system that delivers drinking water to 490 residents in Austin, Texas (Travis County) through 197 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 147 total violations for this system , of which 93 (63%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 49 monitoring and reporting violations are on file. The most recent violation on record dates to 2015.

The most frequently cited contaminant at this system is TTHM, recorded in 76 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Texas, EPA tracks 7,351 public water systems serving 33,253,313 people, with 746,210 cumulative violations and 162,945 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 101.5 violations. Statewide, 610 of 1,147 UCMR5-tested systems have reported PFAS detections (53.2%).

Travis County MUD 10's 147 violations sit above the Texas average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
490
Total Violations
147
Health-Based Violations
93
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
197
County
Travis
School/Daycare
No
MCL Violations
86
Monitoring Violations
49
Treatment Tech Violations
7

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 76 2013
Interim Enhanced Surface Water Treatment Rule MR 27 2008
Surface Water Treatment Rule MR 15 2008
Total Haloacetic Acids (HAA5) MCL 10 2007
Surface Water Treatment Rule TT 7 2005
Lead and Copper Rule MR 7 2015

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Travis County MUD 10.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID TX2270333 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Texas Drinking Water Authority

Texas Commission on Environmental Quality (TCEQ) - Drinking Water Watch is the primacy agency that licenses and inspects Travis County MUD 10 under EPA-delegated authority.

Open TX regulator portal

Source: Texas Commission on Environmental Quality (TCEQ) - Drinking Water Watch

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2015 Lead and Copper Rule MR 7 SDWIS / TX2270333 / 5000
2013 TTHM MCL 76 SDWIS / TX2270333 / 2950
2008 Interim Enhanced Surface Water Treatment Rule MR 27 SDWIS / TX2270333 / 0300
2008 Surface Water Treatment Rule MR 15 SDWIS / TX2270333 / 0200
2007 Total Haloacetic Acids (HAA5) MCL 10 SDWIS / TX2270333 / 2456
2005 Surface Water Treatment Rule TT 7 SDWIS / TX2270333 / 0200

How Travis County MUD 10 Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Travis County MUD 10 Texas avg Federal benchmark
Total violations 147 101.5 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 93 22.2 Indicates a contaminant exceeded a federal MCL
PFAS detection None 53.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 490 4,524 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,351 regulated public water systems in Texas.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Travis County MUD 10 water safe to drink? ▼
Travis County MUD 10 (PWS ID: TX2270333) has 147 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 490 people using Surface Water sources.
How many people does Travis County MUD 10 serve? ▼
Travis County MUD 10 serves 490 people in Austin, Texas. It is a Local-owned system using Surface Water water sources with 197 service connections.
What type of violations does Travis County MUD 10 have? ▼
Travis County MUD 10 has 147 total violations: 93 health-based violations (MCL exceedances or treatment failures), 49 monitoring/reporting violations, and 7 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Travis County MUD 10 water? ▼
No PFAS testing data is available for Travis County MUD 10 under the EPA's UCMR5 monitoring program.
What water source does Travis County MUD 10 use? ▼
Travis County MUD 10 uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.