Mcmullen County Tilden, TX
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2026-2026). 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.
Who runs the water here
Mcmullen County Tilden serves about 618 people through 204 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Mcmullen County, Texas. EPA system ID: TX1560002; phone on file: 361-274-3900. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Mcmullen County Tilden's lead record
That is down 14.4 ppb from 14.4 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Mcmullen County Tilden is 14.4 ppb across 4 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 14.4 ppb over 10 |
| 2025 | 2.8 ppb |
| 2024 | 2 ppb |
How Mcmullen County Tilden compares
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. Mcmullen County Tilden's reported as 0 (not detected) sits at the 22nd percentile in Texas and the 24th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Mcmullen County
1 other system shares Mcmullen County; 1 of them has a higher latest lead result than Mcmullen County Tilden. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Mcmullen County Calliham | 300 | 3.2 ppb |
Next steps for Tilden, TX
Look up your address in Mcmullen County Tilden'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 Mcmullen County Tilden 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. The lead result guide covers how utilities pick the homes they sample. Small systems behave differently: why small systems go over more often.