County · Texas
Llano County, Texas: drinking water records
This overview covers 8 ZIP codes and 15 community water systems in Llano County. It also stands in for 3 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 Horseshoe Bay TX1500015 | 12,729 | 215 | 1 | 8 | 4.1 ppb |
| Kingsland WSC TX1500012 | 12,975 | 120 | 0 | 0 | 0.9 ppb |
| City of Llano TX1500001 | 3,352 | 120 | 2 | 0 | 2.3 ppb |
| Lake Buchanan TX1500037 | 2,484 | 0 | 0 | 6 | 1.7 ppb |
| Llano County MUD 1 TX1500002 | 747 | 0 | 0 | 15 | 1.1 ppb |
| Pecan Utilities Oak Ridge Subdivision TX1500043 | 588 | 0 | 0 | 1 | 0 ppb |
| Buchanan Lake Village TX1500003 | 425 | 0 | 0 | 4 | 6.8 ppb |
| Deerhaven WCID TX1500126 | 336 | 0 | 0 | 10 | 0.5 ppb |
| Sandy Harbor Subdivision TX1500009 | 333 | 0 | 0 | 3 | 0 ppb |
| Lake Front Buchanan TX1500033 | 69 | 0 | 0 | 10 | 4.6 ppb |
| City of Sunrise Beach Village TX1500010 | 791 | 0 | 0 | 0 | 1.7 ppb |
| 3 G WSC TX1500006 | 550 | 0 | 0 | 0 | 4.6 ppb |
| Kingsland WSC Comanche Rancherias TX1500004 | 537 | 0 | 0 | 0 | 2.5 ppb |
| Tow Water System TX1500011 | 93 | 0 | 0 | 0 | 0.8 ppb |
| Royal Oaks Estates Subdivision TX1500127 | 75 | 0 | 0 | 0 | not reported |
ZIP reports in Llano 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: 76831, 76885, 78607.
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.