County · Texas
Travis County, Texas: drinking water records
This overview covers 48 ZIP codes and 88 community water systems in Travis County. It also stands in for 1 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| City of Austin Water & Wastewater TX2270001 | 1,115,323 | 360 | 6 | 5 | 0 ppb |
| City of Pflugerville TX2270014 | 63,464 | 240 | 10 | 14 | 1.1 ppb |
| Manville WSC TX2270033 | 39,648 | 600 | 10 | 5 | 1.4 ppb |
| West Travis County Public Utility Agency TX2270235 | 35,664 | 120 | 1 | 3 | 1.2 ppb |
| City of Lago Vista TX2270092 | 8,698 | 240 | 1 | 3 | 1.9 ppb |
| Jonestown WSC TX2270011 | 7,902 | 120 | 1 | 3 | 1.3 ppb |
| Travis County WCID 18 TX2270083 | 5,733 | 120 | 2 | 5 | 1.0 ppb |
| Travis County WCID 17 TX2270027 | 45,165 | 240 | 1 | 0 | 3.1 ppb |
| Windermere Community TX2270161 | 21,231 | 305 | 6 | 0 | 3 ppb |
| City of Manor TX2270002 | 19,620 | 360 | 2 | 0 | 1.2 ppb |
| Wells Branch MUD 1 TX2270227 | 18,015 | 120 | 1 | 0 | 0 ppb |
| Northtown MUD TX2270264 | 11,520 | 116 | 1 | 0 | 0.4 ppb |
| North Austin MUD 1 TX2270226 | 11,133 | 120 | 0 | 0 | 0 ppb |
| Lakeway MUD TX2270012 | 10,512 | 120 | 0 | 0 | 3.3 ppb |
| Austins Colony TX2270255 | 9,987 | 120 | 5 | 0 | 3.0 ppb |
| Travis County WCID 10 TX2270182 | 9,204 | 120 | 5 | 0 | 0 ppb |
| Creedmoor Maha WSC TX2270008 | 8,907 | 360 | 5 | 0 | 1.3 ppb |
| Lazy Nine MUD 1b TX2270417 | 4,669 | 0 | 0 | 1 | 1.1 ppb |
| Travis County WCID Point Venture TX2270038 | 2,835 | 0 | 0 | 2 | 2.2 ppb |
| Lakeside WCID 2d TX2270410 | 2,385 | 0 | 0 | 4 | 1.0 ppb |
| Sandy Creek Ranches Subdivision TX2270054 | 2,022 | 300 | 0 | 0 | 0 ppb |
| Travis County MUD 18 TX2270403 | 1,491 | 240 | 1 | 0 | 0.7 ppb |
| Travis County MUD 11 TX2270379 | 1,437 | 0 | 0 | 1 | 1.6 ppb |
| Barton Creek Lakeside TX2270282 | 1,023 | 0 | 0 | 5 | 7.9 ppb |
| Arroyo Doble Water System TX2270069 | 945 | 0 | 0 | 1 | 1.0 ppb |
ZIP reports in Travis County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 78669.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.