Uscf - Slc, UT
Lead detected, under the action levels
Latest 90th-percentile lead: 0.2 ppb (monitoring period 2025-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
About Uscf - Slc
Uscf - Slc serves about 3,100 people through 1 service connections, which makes it a small system under EPA's size classes. It is owned by the state and draws surface water, in Salt Lake County, Utah. EPA system ID: UTAH18182; phone on file: 435-851-7127. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is down 1.9 ppb from 2.1 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Uscf - Slc is 2.1 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.2 ppb |
| 2024 | 2.1 ppb |
| 2024 | 0.96 ppb |
Where this result ranks
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. Uscf - Slc's 0.2 ppb sits at the 13th percentile in Utah and the 41st nationally (higher means more lead).
Neighbouring systems
38 other systems share Salt Lake County; 35 of them have a higher latest lead result than Uscf - Slc. 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 |
What to do in your house
Test your own tap with a certified lab first-draw sample; Draper, 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 Uscf - Slc 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Size matters more than most people expect: small vs large water systems.