TapSafetyReport
B78/100

Austin Tap Water Quality: Is It Safe to Drink? (2026 Report)

Serving 1,634,649 residents · Texas

What's In Austin's Tap Water?

76
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals

EPA Violation History

1

Violation (last 5yr)

0

Unresolved

1

Health-Related

TIER 1 — URGENTResolved

Violation related to Nitrate

When: February 1, 2022 – February 28, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway

Understanding violation severity

Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.

Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly

Water Utility Details

LAKE MEDINA SHORES
Population Served

4,032

Water Source

Groundwater

System ID

TX0100037

THE COLONY MUD 1A
Population Served

2,262

Water Source

Purchased Groundwater

System ID

TX0110053

OAK NORTH MOBILE HOMES ESTATES
Population Served

1,059

Water Source

Groundwater

System ID

TX0150135

SPICEWOOD BEACH
Population Served

1,452

Water Source

Groundwater Under Influence of Surface Water

System ID

TX0270011

GRAY UTILITY SERVICE
Population Served

8,004

Water Source

Groundwater

System ID

TX0360005

PLANTATION ON COTTON BAYOU
Population Served

1,557

Water Source

Groundwater

System ID

TX0360096

EAGLES BLUFF
Population Served

1,485

Water Source

Groundwater

System ID

TX0370052

NORTH CUSTER ROAD PLANT
Population Served

2,754

Water Source

Groundwater

System ID

TX0430077

CANYON SPRINGS WATER
Population Served

1,528

Water Source

Groundwater

System ID

TX0460022

OAK VILLAGE NORTH
Population Served

1,944

Water Source

Groundwater

System ID

TX0460037

CANYON LAKE MOBILE HOME ESTATES
Population Served

2,202

Water Source

Groundwater

System ID

TX0460063

RIM ROCK RANCH
Population Served

1,065

Water Source

Groundwater Under Influence of Surface Water

System ID

TX0460211

FOXBANE COMBINED WS
Population Served

1,455

Water Source

Groundwater

System ID

TX0610164

TRAIL CREEK WATER SYSTEM
Population Served

1,509

Water Source

Groundwater

System ID

TX0610203

SHALE CREEK COMMUNITY
Population Served

1,470

Water Source

Groundwater

System ID

TX0610238

PASEO DEL ESTE MUD 1
Population Served

36,773

Water Source

Purchased Surface Water

System ID

TX0710186

MOUNTAIN LAKES ADDITION
Population Served

1,347

Water Source

Groundwater

System ID

TX0720037

RIDGECREST
Population Served

1,968

Water Source

Purchased Surface Water

System ID

TX0910035

SHERWOOD SHORES
Population Served

2,031

Water Source

Groundwater

System ID

TX0910040

TANGLEWOOD ON TEXOMA
Population Served

4,341

Water Source

Purchased Surface Water

System ID

TX0910052

GREENWOOD VILLAGE
Population Served

2,514

Water Source

Groundwater

System ID

TX1010011

MARY FRANCIS SUBDIVISION
Population Served

1,785

Water Source

Groundwater

System ID

TX1010100

CANDLELIGHT HILLS SUBDIVISION
Population Served

2,265

Water Source

Purchased Surface Water

System ID

TX1010532

PINE TRAILS UTILITY
Population Served

6,969

Water Source

Purchased Surface Water

System ID

TX1010535

WEST MONTGOMERY
Population Served

1,515

Water Source

Groundwater

System ID

TX1010670

BRITTMOORE UTILITY
Population Served

3,732

Water Source

Groundwater

System ID

TX1011014

THE COMMONS WATER SUPPLY
Population Served

3,018

Water Source

Groundwater

System ID

TX1012978

LAKES OF ROSEHILL WATER SYSTEM
Population Served

1,242

Water Source

Groundwater

System ID

TX1013050

HERON LAKES ESTATES
Population Served

2,712

Water Source

Groundwater

System ID

TX1013089

PLUM CREEK
Population Served

7,065

Water Source

Purchased Surface Water

System ID

TX1050028

WOODCREEK UTILITY CO 1
Population Served

2,700

Water Source

Groundwater

System ID

TX1050037

WOODCREEK UTILITY CO 2
Population Served

3,096

Water Source

Groundwater Under Influence of Surface Water

System ID

TX1050039

LEISUREWOODS WATER
Population Served

1,338

Water Source

Groundwater

System ID

TX1050043

MEADOW WOODS WATER SUPPLY
Population Served

1,554

Water Source

Groundwater

System ID

TX1050077

HAYS COUNTY WCID 1
Population Served

2,850

Water Source

Purchased Surface Water

System ID

TX1050137

HAYS COUNTY WCID 2
Population Served

3,381

Water Source

Purchased Surface Water

System ID

TX1050148

SOUTH BUDA WCID 1
Population Served

2,517

Water Source

Purchased Surface Water

System ID

TX1050154

MID-TEX UTILITIES
Population Served

1,569

Water Source

Purchased Surface Water

System ID

TX1050157

REUNION RANCH WCID
Population Served

1,557

Water Source

Purchased Surface Water

System ID

TX1050175

BEACHWOOD ESTATES & NORTH TRINIDAD
Population Served

1,551

Water Source

Surface Water

System ID

TX1070069

CARRIZO WATER CORP FOREST GROVE
Population Served

1,224

Water Source

Groundwater

System ID

TX1070074

WESTWOOD BEACH
Population Served

1,845

Water Source

Groundwater

System ID

TX1070085

CAROLYNN ESTATES
Population Served

3,906

Water Source

Surface Water

System ID

TX1070106

HIGHSAW
Population Served

1,815

Water Source

Groundwater

System ID

TX1070124

LAKE PALESTINE WATER
Population Served

2,568

Water Source

Groundwater

System ID

TX1070198

CHEROKEE SHORES WATER SUPPLY
Population Served

2,343

Water Source

Surface Water

System ID

TX1070206

PHOENIX WATER WORKS
Population Served

1,647

Water Source

Groundwater

System ID

TX1070211

WHITE BLUFF
Population Served

2,319

Water Source

Groundwater

System ID

TX1090073

OAK TRAIL SHORES
Population Served

5,676

Water Source

Surface Water

System ID

TX1110004

WESTERN HILLS HARBOR
Population Served

1,245

Water Source

Groundwater

System ID

TX1110005

COMANCHE HARBOR & PORT OCALL
Population Served

1,578

Water Source

Purchased Surface Water

System ID

TX1110022

COMANCHE COVE & HERITAGE HEIGHTS
Population Served

2,073

Water Source

Groundwater

System ID

TX1110060

CANYON CREEK ADDITION
Population Served

2,895

Water Source

Groundwater

System ID

TX1110070

BLUE WATER SHORES
Population Served

1,137

Water Source

Groundwater

System ID

TX1110079

BENTWATER ON LAKE GRANBURY
Population Served

1,374

Water Source

Groundwater

System ID

TX1110116

COUNTRY SIDE ESTATES
Population Served

1,338

Water Source

Purchased Surface Water

System ID

TX1230037

CROWLEY 1 ACRE SKY CORP WATER
Population Served

2,016

Water Source

Groundwater

System ID

TX1260011

METROPLEX HOMESTEADS WATER SUPPLY
Population Served

3,588

Water Source

Groundwater

System ID

TX1260074

INGRAM WATER SUPPLY
Population Served

5,955

Water Source

Groundwater

System ID

TX1330011

LOMA VISTA WATER SYSTEM
Population Served

3,720

Water Source

Groundwater

System ID

TX1330041

FOUR SEASONS
Population Served

1,059

Water Source

Groundwater

System ID

TX1330113

LOMETA REGIONAL WATER
Population Served

3,609

Water Source

Surface Water

System ID

TX1410002

LAKE BUCHANAN
Population Served

2,484

Water Source

Surface Water

System ID

TX1500037

CHINA SPRING WATER
Population Served

2,070

Water Source

Groundwater

System ID

TX1550021

WESTERN HILLS WATER SYSTEM
Population Served

3,048

Water Source

Groundwater

System ID

TX1550072

MITCHELL COUNTY UTILITY
Population Served

3,612

Water Source

Groundwater

System ID

TX1680004

DOGWOOD HILLS
Population Served

1,059

Water Source

Groundwater

System ID

TX1700129

LAKE CONROE FOREST SUBDIVISION
Population Served

1,185

Water Source

Groundwater

System ID

TX1700134

ARROWHEAD LAKE & FRONTIER LAKE
Population Served

2,208

Water Source

Groundwater

System ID

TX1700171

DEERWOOD SUBDIVISION
Population Served

1,359

Water Source

Groundwater

System ID

TX1700264

CARRIAGE HILLS
Population Served

1,833

Water Source

Groundwater

System ID

TX1700279

DECKER HILLS
Population Served

3,780

Water Source

Groundwater

System ID

TX1700386

CLEAR CREEK FOREST SECTION 12
Population Served

1,836

Water Source

Groundwater

System ID

TX1700437

LAKE CONROE VILLAGE
Population Served

2,961

Water Source

Groundwater

System ID

TX1700543

WOODLAND OAKS SUBDIVISION
Population Served

3,666

Water Source

Groundwater

System ID

TX1700648

OLD EGYPT SUBDIVISION
Population Served

8,442

Water Source

Groundwater

System ID

TX1700666

ESTATES WOODLAND II
Population Served

1,248

Water Source

Groundwater

System ID

TX1700852

GRAND ESTATES
Population Served

2,433

Water Source

Groundwater

System ID

TX1700853

THE CLIFFS
Population Served

1,115

Water Source

Surface Water

System ID

TX1820061

WESTERN LAKE ESTATES
Population Served

2,526

Water Source

Groundwater

System ID

TX1840014

CEDAR POINT
Population Served

1,827

Water Source

Groundwater

System ID

TX1870155

LAKE LIVINGSTON VILLAGE
Population Served

1,638

Water Source

Groundwater

System ID

TX1870156

HOLIDAY VILLAGES OF LIVINGSTON
Population Served

2,272

Water Source

Groundwater

System ID

TX2040067

WESTSIDE RURAL WSC
Population Served

1,077

Water Source

Groundwater

System ID

TX2200079

THE RESORT AT EAGLE MOUNTAIN LAKE
Population Served

1,605

Water Source

Purchased Surface Water

System ID

TX2200344

CITY OF AUSTIN WATER & WASTEWATER
Population Served

1,115,323

Water Source

Surface Water

System ID

TX2270001

TRAVIS COUNTY WCID 17
Population Served

45,165

Water Source

Surface Water

System ID

TX2270027

RIVERCREST WATER SYSTEM
Population Served

1,437

Water Source

Purchased Surface Water

System ID

TX2270041

SANDY CREEK RANCHES SUBDIVISION
Population Served

2,022

Water Source

Groundwater

System ID

TX2270054

TRAVIS COUNTY WCID 18
Population Served

5,733

Water Source

Surface Water

System ID

TX2270083

WINDERMERE COMMUNITY
Population Served

21,231

Water Source

Purchased Surface Water

System ID

TX2270161

HILL COUNTRY NORTHWEST CHERRY HOLLOW
Population Served

1,002

Water Source

Groundwater

System ID

TX2270173

NORTH AUSTIN MUD 1
Population Served

11,133

Water Source

Purchased Surface Water

System ID

TX2270226

WELLS BRANCH MUD 1
Population Served

18,015

Water Source

Purchased Surface Water

System ID

TX2270227

SHADY HOLLOW MUD
Population Served

4,269

Water Source

Purchased Surface Water

System ID

TX2270229

TRAVIS COUNTY WCID 20
Population Served

1,092

Water Source

Surface Water

System ID

TX2270231

WEST TRAVIS COUNTY PUBLIC UTILITY AGENCY
Population Served

28,215

Water Source

Surface Water

System ID

TX2270235

TRAVIS COUNTY MUD 2
Population Served

3,294

Water Source

Purchased Groundwater

System ID

TX2270241

LOOP 360 WSC
Population Served

1,743

Water Source

Surface Water

System ID

TX2270242

AUSTINS COLONY
Population Served

9,987

Water Source

Groundwater

System ID

TX2270255

NORTHTOWN MUD
Population Served

11,520

Water Source

Purchased Surface Water

System ID

TX2270264

BARTON CREEK LAKESIDE
Population Served

1,023

Water Source

Surface Water

System ID

TX2270282

SENNA HILLS MUD
Population Served

1,215

Water Source

Purchased Surface Water

System ID

TX2270316

TRAVIS COUNTY MUD 4
Population Served

6,816

Water Source

Surface Water

System ID

TX2270325

CYPRESS RANCH WCID 1
Population Served

1,785

Water Source

Groundwater

System ID

TX2270352

TRAVIS COUNTY MUD 14
Population Served

3,333

Water Source

Purchased Groundwater

System ID

TX2270353

BRIARCREEK SUBDIVISION
Population Served

3,075

Water Source

Purchased Groundwater

System ID

TX2270354

COTTONWOOD CREEK MUD 1
Population Served

5,082

Water Source

Purchased Groundwater

System ID

TX2270355

LAKESIDE WCID 2-B
Population Served

1,419

Water Source

Purchased Surface Water

System ID

TX2270371

LAKESIDE WCID 2-C
Population Served

3,084

Water Source

Purchased Surface Water

System ID

TX2270373

TRAVIS COUNTY MUD 11
Population Served

1,437

Water Source

Purchased Surface Water

System ID

TX2270379

WILBARGER CREEK MUD 1
Population Served

3,459

Water Source

Purchased Groundwater

System ID

TX2270380

KELLY LANE WCID 1
Population Served

2,331

Water Source

Purchased Groundwater

System ID

TX2270382

KELLY LANE WCID 2
Population Served

1,221

Water Source

Purchased Groundwater

System ID

TX2270386

TRAVIS COUNTY MUD 13
Population Served

1,644

Water Source

Purchased Surface Water

System ID

TX2270388

TRAVIS COUNTY MUD 12
Population Served

1,644

Water Source

Purchased Surface Water

System ID

TX2270398

LAKESIDE WCID 1
Population Served

1,680

Water Source

Purchased Surface Water

System ID

TX2270408

LAKESIDE WCID 2-A
Population Served

1,353

Water Source

Purchased Surface Water

System ID

TX2270409

LAKESIDE WCID 2D
Population Served

2,385

Water Source

Purchased Surface Water

System ID

TX2270410

LAZY NINE MUD 1B
Population Served

4,669

Water Source

Purchased Surface Water

System ID

TX2270417

LAKESIDE MUD 3
Population Served

2,832

Water Source

Purchased Surface Water

System ID

TX2270422

IVANHOE LAND OF LAKES
Population Served

1,968

Water Source

Groundwater

System ID

TX2290010

LAKE RIDGE WATER SYSTEM
Population Served

1,300

Water Source

Groundwater

System ID

TX2330029

CALLENDER LAKE
Population Served

2,103

Water Source

Groundwater

System ID

TX2340007

NORTHEAST WASHINGTON COUNTY
Population Served

3,219

Water Source

Groundwater

System ID

TX2390043

VISTA OAKS MUD
Population Served

2,724

Water Source

Purchased Surface Water

System ID

TX2460139

WILLIAMSON COUNTY MUD 10
Population Served

3,513

Water Source

Purchased Surface Water

System ID

TX2460145

WILLIAMSON COUNTY WSID 3
Population Served

8,265

Water Source

Purchased Groundwater

System ID

TX2460152

SONTERRA MUD
Population Served

16,614

Water Source

Purchased Surface Water

System ID

TX2460157

WILLIAMSON COUNTY MUD 11
Population Served

4,248

Water Source

Purchased Surface Water

System ID

TX2460159

PALOMA LAKE MUD 1
Population Served

3,111

Water Source

Purchased Surface Water

System ID

TX2460164

PALOMA LAKE MUD 2
Population Served

2,265

Water Source

Purchased Surface Water

System ID

TX2460165

EAGLE CREEK RANCH
Population Served

2,409

Water Source

Groundwater

System ID

TX2470022

CHISHOLM SPRINGS
Population Served

1,947

Water Source

Groundwater

System ID

TX2490060

CLEAR LAKES
Population Served

1,152

Water Source

Groundwater

System ID

TX2500017

HOLIDAY VILLAGES OF FORK
Population Served

1,761

Water Source

Groundwater

System ID

TX2500058

Frequently Asked Questions About Austin Water

Is Austin tap water safe to drink?

Austin, Texas tap water receives a grade of B (78/100), which is considered good. Out of 80 contaminants tested, 2 exceed EPA maximum contaminant levels (MCLs) and 4 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.

What contaminants are in Austin's water?

Of the 80 contaminants tested in Austin's water supply, the most notable include Copper (90th percentile), PFOS, Lead (90th percentile), chlorate. 2 contaminant(s) exceed EPA legal limits (MCLs). 4 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.

Does Austin have any water quality violations?

Yes, Austin has 1620 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other, MON. 451 of these are health-based violations, which are the most serious category.

Do I need a water filter in Austin?

Based on EPA data, using a water filter in Austin is recommended. 2 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.

Where does Austin's tap water come from?

Austin's drinking water is sourced from groundwater and supplied by LAKE MEDINA SHORES and 135 other water system(s). The system serves approximately 1,634,649 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.

How often is Austin's water tested?

Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Austin's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.

How does Austin's water compare to other cities in Texas?

Austin's water quality score of 78/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Texas state page to see how all cities in the state compare.

What should I do if I'm concerned about Austin's water quality?

If you have concerns about Austin's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (LAKE MEDINA SHORES) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.

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