Is Lehi, UT tap water safe?
Data: U.S. EPA · How we read the data · How we check it
Summary
No federal limits exceeded in EPA data for Lehi City Water System.
3 public water systems serve parts of Lehi. The largest, Lehi City Water System, serves 93,446 people. Your water bill names your system.
Largest system
Lehi City Water System
93,446 people · Purchased surface water · EPA ID UTAH25015
Buys treated water from Central Utah Water Conservancy District – Utah Valley.
| PFAS | Highest average | Limit |
|---|---|---|
| PFOA Not detected | – | 4 ppt |
| PFOS Not detected | – | 4 ppt |
| PFHxS Not detected | – | 10 ppt |
| PFNA Not detected | – | 10 ppt |
| HFPO-DA (GenX) Not detected | – | 10 ppt |
ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.
Lead: 3 ppb at the 90th percentile (Dec 2024, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0
Across Utah, 2 of 127 water systems EPA tested had PFAS above a 2024 federal limit, and 8 systems were above the lead action level in results from the last five years. Utah results.
Lehi homes and lead pipes
Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. How to check your own line.
Housing: Census American Community Survey 2020–2024 5-year estimates for Lehi city (tables B25034, B25003). Estimates for small places have a margin of error.
Other water systems serving Lehi
- American Fork City Water System39,045 people · Groundwater · Utah · reported ZIPs hereNo PFAS above limits
- Waterpro Inc33,100 people · Surface water · Utah · reported ZIPs hereLithium above screening level
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Saratoga Springs 5 mi Saratoga Springs City Water System | None above limits | 1.7 ppb |
| Draper 6 mi Jordan Valley Water Conservancy District | None above limits | 5.05 ppb |
| Herriman 9 mi Jordan Valley Water Conservancy District | None above limits | 5.05 ppb |
| Eagle Mountain 10 mi Eagle Mountain City Water System | None above limits | 1.5 ppb |
| Sandy 11 mi Sandy City Water System | None above limits | 2.92 ppb |
| South Jordan 11 mi Jordan Valley Water Conservancy District | None above limits | 5.05 ppb |
Lehi ZIP codes (1)
- 84043
Questions
Is Lehi tap water safe to drink?
Lehi City Water System has had no health-based violations since 2016. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.
Who supplies water in Lehi, UT?
3 public water systems serve parts of Lehi. The largest is Lehi City Water System (93,446 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.
Does Lehi tap water have PFAS?
None detected above EPA's reporting limits. Lehi City Water System had no PFAS detected in EPA's 2023–2025 testing. "Not detected" means below the reporting limit (about 2 to 20 ppt), not proven zero.
Do Lehi homes have lead pipes?
Census estimates put 9% of Lehi homes as built before 1980 (Utah: 36%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Lehi City Water System's service line inventory says what your line is made of. The only way to know for your home is to check the line where it enters the house and test your tap.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.