Austin
Tap water in Austin comes from 34 water systems: 29 low risk, 5 medium risk. Had a health violation recently, since fixed where the rating is medium risk.
34 official water systems are listed for this town. Each keeps its own rating.
Is it safe?
Carolynn Estates
Medium risk
Had a health violation recently, since fixed
3 health-based violations began in the last 3 years. 0 are still unresolved.
Serves about 3,906 people.
Source water: surface water.
Last health violation began 2026-01-01.
The violations involved TTHM.
Is it safe?
Cherokee Shores Water Supply
Medium risk
Had a health violation recently, since fixed
3 health-based violations began in the last 3 years. 0 are still unresolved.
Serves about 3,402 people.
Source water: surface water.
Last health violation began 2024-04-01.
The violations involved TTHM.
Is it safe?
Lazy Nine MUD 1b
Medium risk
Had a health violation recently, since fixed
1 health-based violation began in the last 3 years. 0 are still unresolved.
Serves about 4,669 people.
Source water: surface water.
Last health violation began 2024-10-17.
The violations involved LEAD AND COPPER RULE REVISIONS.
Is it safe?
Lometa Regional Water
Medium risk
Had a health violation recently, since fixed
7 health-based violations began in the last 3 years. 0 are still unresolved.
Serves about 3,609 people.
Source water: surface water.
Last health violation began 2025-04-01.
The violations involved Total Haloacetic Acids (HAA5), TTHM.
Is it safe?
West Travis County Public Utility Agency
Medium risk
Had a health violation recently, since fixed
1 health-based violation began in the last 3 years. 0 are still unresolved.
Serves about 35,664 people.
Source water: surface water.
Last health violation began 2025-11-01.
The violations involved Interim Enhanced Surface Water Treatment Rule.
Is it safe?
Austins Colony
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 9,987 people.
Source water: groundwater.
Is it safe?
Brittmoore Utility
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 3,732 people.
Source water: groundwater.
Is it safe?
Canyon Creek Addition
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 3,687 people.
Source water: surface water.
Is it safe?
City of Austin Water & Wastewater
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 1,115,323 people.
Source water: surface water.
Last health violation began 2022-02-01.
Is it safe?
Cottonwood Creek MUD 1
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 5,082 people.
Source water: groundwater.
Is it safe?
Decker Hills
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 3,780 people.
Source water: groundwater.
Is it safe?
Gray Utility Service
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 8,004 people.
Source water: groundwater.
Is it safe?
Hays County WCID 2
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 3,381 people.
Source water: surface water.
Is it safe?
Lake Medina Shores
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 3,660 people.
Source water: groundwater.
Is it safe?
Loma Vista Water System
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 3,720 people.
Source water: groundwater.
Is it safe?
Metroplex Homesteads Water Supply
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 3,588 people.
Source water: groundwater.
Is it safe?
North Austin MUD 1
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 11,133 people.
Source water: surface water.
Is it safe?
Northtown MUD
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 11,520 people.
Source water: surface water.
Is it safe?
Old Egypt Subdivision
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 8,442 people.
Source water: groundwater.
Is it safe?
Paseo Del Este MUD 1
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 36,773 people.
Source water: surface water.
Is it safe?
Pine Trails Utility
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 6,969 people.
Source water: surface water.
Is it safe?
Plum Creek
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 7,065 people.
Source water: surface water.
Is it safe?
Sonterra MUD
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 16,614 people.
Source water: surface water.
Is it safe?
Tanglewood on Texoma
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 4,341 people.
Source water: surface water.
Is it safe?
Travis County MUD 14
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 3,333 people.
Source water: groundwater.
Is it safe?
Travis County MUD 4
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 6,816 people.
Source water: surface water.
Is it safe?
Travis County WCID 17
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 45,165 people.
Source water: surface water.
Is it safe?
Travis County WCID 18
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 5,733 people.
Source water: surface water.
Is it safe?
Wilbarger Creek MUD 1
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 3,459 people.
Source water: groundwater.
Is it safe?
Williamson County MUD 10
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 3,513 people.
Source water: surface water.
Is it safe?
Williamson County MUD 11
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 4,248 people.
Source water: surface water.
Is it safe?
Williamson County Wsid 3
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 8,265 people.
Source water: groundwater.
Is it safe?
Windermere Community
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 21,231 people.
Source water: surface water.
Is it safe?
Woodland Oaks Subdivision
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 3,666 people.
Source water: groundwater.
Source
US EPA Safe Drinking Water Information System.
Period covered: October 2023 to September 2026.
Covers community water systems serving 3,300 people or more. The rating uses health-based violations of federal drinking-water standards in the last three years, and whether those violations have been fixed. Each system is placed at a town it serves, so positions are approximate.
Common questions
Can I drink the tap water in Austin, Texas?
Tap water in Austin comes from 34 water systems: 29 low risk, 5 medium risk. Had a health violation recently, since fixed where the rating is medium risk.
Where do these ratings come from?
US EPA Safe Drinking Water Information System. Period covered: October 2023 to September 2026.