Shamrock Municipal Water System, TX
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2022-2024). 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
Shamrock Municipal Water System serves about 2,311 people through 1,267 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 Wheeler County, Texas. EPA system ID: TX2420001; phone on file: 806-256-3281. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Shamrock Municipal Water System's lead record
Against the period ending 2021 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Shamrock Municipal Water System is 0 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2018 | 0 (not detected) |
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. Shamrock Municipal Water System's reported as 0 (not detected) sits at the 35th percentile in Texas and the 31st nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Wheeler County
4 other systems share Wheeler County; 2 of them have a higher latest lead result than Shamrock Municipal Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Wheeler Municipal Water System | 1,602 | 2.88 ppb |
| Project Caprock Man Camp | 1,150 | - |
| Fort Elliott Cisd Briscoe | 155 | 1.23 ppb |
| Mobeetie City Water Works | 94 | 0 (not detected) |
What to do in your house
Look up your address in Shamrock Municipal Water System'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 Shamrock Municipal Water System 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.