Lake Vista Utility, TX
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2025-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Lake Vista Utility at a glance
Lake Vista Utility serves about 834 people through 278 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Live Oak County, Texas. EPA system ID: TX1490017; phone on file: 512-990-4400. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2025 (0.5 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Lake Vista Utility is 0.5 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2025 | 0.5 ppb |
| 2024 | 0.4 ppb |
| 2022 | 0.5 ppb |
Against other Texas systems
Of the 4,447 Texas systems with a lead result, the median latest reading is 0.28 ppb; 15 are over 15 ppb right now and 202 have gone over at some point. Lake Vista Utility's reported as 0 (not detected) sits at the 25th percentile in Texas and the 26th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Live Oak County
5 other systems share Live Oak County; 5 of them have a higher latest lead result than Lake Vista Utility. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Three Rivers | 4,428 | 1.84 ppb |
| City Of George West | 2,159 | 1.74 ppb |
| Old Marbach School Wsc | 712 | 1.63 ppb |
| Jones River Bend Wsc | 80 | 4.43 ppb |
| Buckeye Knoll | 72 | 1.69 ppb |
Your move
Look up your address in Lake Vista Utility's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Lake Vista Utility whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. Why sampled homes are the worst-case ones is in the guide to reading the number. A zero today does not rule out a jump later - the rules are tightening in 2027.