Shafter Mine, TX
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2018-2020). 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
Shafter Mine serves about 32 people through 14 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Presidio County, Texas. EPA system ID: TX1890018; phone on file: 140-523-2102. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Shafter Mine's lead record
That is down 2.41 ppb from 2.41 ppb in the period ending 2017. The highest 90th-percentile result EPA holds for Shafter Mine is 7.7 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2020 | 0 (not detected) |
| 2017 | 2.41 ppb |
| 2016 | 7.7 ppb |
Where this result ranks
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. Shafter Mine's reported as 0 (not detected) sits at the 0th percentile in Texas and the 1st nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Presidio County
4 other systems share Presidio County; 1 of them has a higher latest lead result than Shafter Mine. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Presidio | 5,514 | 0 (not detected) |
| City Of Marfa | 1,788 | 1.25 ppb |
| Candelaria Wsc | 138 | - |
| Redford Water Supply | 82 | 0 (not detected) |
Next steps for Austin, TX
Look up your address in Shafter Mine'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 Shafter Mine 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.