Stansbury Park Improvement District, UT
Lead detected, under the action levels
Latest 90th-percentile lead: 2.6 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.
Stansbury Park Improvement District at a glance
Stansbury Park Improvement District serves about 9,839 people through 4,767 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Tooele County, Utah. EPA system ID: UTAH23003; phone on file: 435-882-7922. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2025 (2.6 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Stansbury Park Improvement District is 4.7 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2.6 ppb |
| 2025 | 2.6 ppb |
| 2022 | 2.4 ppb |
| 2022 | 2.4 ppb |
| 2021 | 4.7 ppb |
| 2016 | 1.7 ppb |
How Stansbury Park 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. Stansbury Park Improvement District's 2.6 ppb sits at the 68th percentile in Utah and the 78th nationally (higher means more lead).
Nearby utilities
12 other systems share Tooele County; 4 of them have a higher latest lead result than Stansbury Park Improvement District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Tooele City Water System | 41,770 | 2.6 ppb |
| Grantsville City | 16,284 | 2.9 ppb |
| Oquirrh Mountain Water Co | 2,500 | 8.7 ppb |
| Wendover City Water System | 1,525 | 0.8 ppb |
| Erda Acres Water Co | 1,150 | 1.4 ppb |
| South Rim Water System | 834 | 1.1 ppb |
| Lincoln Culinary Water Assn | 660 | 1.3 ppb |
| Stockton Town Water System | 620 | 1.5 ppb |
| Dugway - English Village | 600 | 2.1 ppb |
| Vernon Waterworks Special Service Dist | 302 | 4 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Stansbury Park, 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 Stansbury Park 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. The action level is dropping - the 10 ppb rule from 2027.