Boundary Spring Water Co, UT
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 10.7 ppb (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. Under the current 15 ppb rule this is not an exceedance, but it is above the 10 ppb action level that takes over in Nov 2027. Test your own tap; filter if your result shows lead.
Boundary Spring Water Co at a glance
Boundary Spring Water Co serves about 150 people through 56 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Salt Lake County, Utah. EPA system ID: UTAH18050; phone on file: 801-824-5784. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is up 9.3 ppb from 1.4 ppb in the period ending 2016. The highest 90th-percentile result EPA holds for Boundary Spring Water Co is 10.7 ppb across 2 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 10.7 ppb over 10 |
| 2016 | 1.4 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. Boundary Spring Water Co's 10.7 ppb sits at the 97th percentile in Utah and the 97th nationally (higher means more lead).
Nearby utilities
38 other systems share Salt Lake County; 1 of them has a higher latest lead result than Boundary Spring Water Co. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Salt Lake City Water System | 383,612 | 2.51 ppb |
| Granger-Hunter Improvement District | 121,083 | 1.9 ppb |
| West Jordan City Water System | 117,025 | 2.5 ppb |
| Sandy City Water System | 99,750 | 2.92 ppb |
| Jordan Valley Wcd | 99,335 | 5.05 ppb |
| South Jordan City | 89,704 | 4.1 ppb |
| Taylorsville-Bennion Id | 67,098 | 3.3 ppb |
| Herriman City Municipal Water Department | 60,000 | 3.8 ppb |
| University Of Utah | 57,080 | 5.5 ppb |
| Kearns Improvement District | 56,700 | 1.3 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Salt Lake City, UT may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Boundary Spring Water Co 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. This system is in the band the 2027 10 ppb rule changes.