Granger-Hunter Improvement District, UT
Lead detected, under the action levels
Latest 90th-percentile lead: 1.9 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. 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.
Granger-Hunter Improvement District at a glance
Granger-Hunter Improvement District serves about 121,083 people through 27,680 service connections, which makes it a very large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Salt Lake County, Utah. EPA system ID: UTAH18007; phone on file: 801-968-3551. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2025 (1.9 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Granger-Hunter Improvement District is 2.9 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.9 ppb |
| 2025 | 1.9 ppb |
| 2022 | 2.3 ppb |
| 2022 | 2.3 ppb |
| 2021 | 2.4 ppb |
| 2016 | 2.9 ppb |
How Granger-Hunter Improvement District compares
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. Granger-Hunter Improvement District's 1.9 ppb sits at the 54th percentile in Utah and the 69th nationally (higher means more lead).
Other water systems in Salt Lake County
38 other systems share Salt Lake County; 23 of them have a higher latest lead result than Granger-Hunter Improvement District. 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 |
| 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 |
| Riverton City Water System | 45,600 | 3 ppb |
Next steps for Salt Lake City, UT
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 Granger-Hunter Improvement District 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Size matters more than most people expect: small vs large water systems.