Mapleton City, UT
Lead detected, under the action levels
Latest 90th-percentile lead: 2.4 ppb (monitoring period 2024-2024). 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 Mapleton City
Mapleton City serves about 14,000 people through 4,386 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Utah County, Utah. EPA system ID: UTAH25018; phone on file: 801-806-9156. 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 2022 (1.8 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Mapleton City is 7.1 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 2.4 ppb |
| 2022 | 1.8 ppb |
| 2021 | 1.8 ppb |
| 2018 | 1.4 ppb |
| 2016 | 7.1 ppb |
How Mapleton City 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. Mapleton City's 2.4 ppb sits at the 65th percentile in Utah and the 77th nationally (higher means more lead).
Neighbouring systems
42 other systems share Utah County; 12 of them have a higher latest lead result than Mapleton City. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Provo City | 116,288 | 4.3 ppb |
| Orem City Water System | 98,129 | 2.2 ppb |
| Lehi City | 93,446 | 3 ppb |
| Saratoga Springs City | 68,000 | 1.7 ppb |
| Eagle Mountain City | 61,266 | 1.5 ppb |
| Spanish Fork City | 47,169 | 1 ppb |
| Pleasant Grove City | 40,000 | 1.4 ppb |
| American Fork City | 39,045 | 3.7 ppb |
| Springville City | 35,516 | 1.1 ppb |
| Highland City | 22,000 | 1.7 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Mapleton, 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 Mapleton City 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.