Thatcher Hills Water Company, UT
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2023-2025). 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.
Thatcher Hills Water Company at a glance
Thatcher Hills Water Company serves about 399 people through 134 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Box Elder County, Utah. EPA system ID: UTAH02058; phone on file: 406-640-1033. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Thatcher Hills Water Company is 0.6 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2016 | 0.6 ppb |
Against other Utah systems
Of the 521 Utah systems with a lead result, the median latest reading is 1.71 ppb; 8 are over 15 ppb right now and 27 have gone over at some point. Thatcher Hills Water Company's reported as 0 (not detected) sits at the 7th percentile in Utah and the 21st nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
33 other systems share Box Elder County; 28 of them have a higher latest lead result than Thatcher Hills Water Company. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Brigham City Water System | 20,540 | 0.8 ppb |
| Tremonton City | 13,000 | 1 ppb |
| Perry City | 6,570 | 1.3 ppb |
| West Corinne Water Co | 1,970 | 1.1 ppb |
| Honeyville Town Water System | 1,750 | 6.7 ppb |
| South Willard | 1,500 | 1.1 ppb |
| Ukon Water Company | 1,465 | 1.4 ppb |
| Elwood Town | 1,300 | 2.3 ppb |
| Mantua Town Water System | 1,200 | 1.8 ppb |
| Riverside-North Garland Water Co | 1,193 | 2.2 ppb |
What to do in your house
Look up your address in Thatcher Hills Water Company'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 Thatcher Hills Water Company 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.