Is Farmington, 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 Farmington City Water System. 1 PFAS were detected below the limits.
Farmington City Water System supplies Farmington (27,860 people).
Water system
Farmington City Water System
27,860 people · Purchased surface water · EPA ID UTAH06004
Buys treated water from Weber Basin Water Conservancy District – Central.
| 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 2025, 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.
Farmington 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 Farmington city (tables B25034, B25003). Estimates for small places have a margin of error.
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Kaysville 4 mi Kaysville City Water System | None above limits | 2.4 ppb |
| Layton 7 mi Layton City Water System | None above limits | 4.08 ppb |
| Bountiful 8 mi Bountiful City Water System | None above limits | 7.2 ppb |
| Clearfield 10 mi Clearfield City Water System | None above limits | 2.8 ppb |
| Syracuse 11 mi City of Syracuse Water System | None above limits | 2.6 ppb |
| Salt Lake City 14 mi Salt Lake City Water System | None above limits | 2.51 ppb |
Farmington ZIP codes (1)
- 84025
Questions
Is Farmington tap water safe to drink?
Farmington 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 Farmington, UT?
Farmington City Water System, which serves 27,860 people.
Does Farmington tap water have PFAS?
Farmington City Water System had 1 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.
Do Farmington homes have lead pipes?
Census estimates put 18% of Farmington 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. Farmington 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.