Is Washington, 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 Washington City Water System.
Washington City Water System supplies Washington (45,865 people).
Water system
Washington City Water System
45,865 people · Surface water · EPA ID UTAH27021
Buys treated water from Washington County Water Conservancy District – Sand Hollow, Washington County Water Conservancy District – Quail Lake.
| 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: 2.1 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.
Washington 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 Washington city (tables B25034, B25003). Estimates for small places have a margin of error.
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| St. George 5 mi St George City Water System | None above limits | 1.4 ppb |
| Hurricane 7 mi Hurricane City Water System | None above limits | 0.5 ppb |
| Cedar City 44 mi Cedar City Waterworks | None above limits | 0 ppb |
| Spanish Fork 229 mi Spanish Fork City Water System | None above limits | 1 ppb |
| Springville 233 mi Springville City Water System | None above limits | 1.1 ppb |
| Eagle Mountain 234 mi Eagle Mountain City Water System | None above limits | 1.5 ppb |
Washington ZIP codes (1)
- 84780
Questions
Is Washington tap water safe to drink?
Washington 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 Washington, UT?
Washington City Water System, which serves 45,865 people.
Does Washington tap water have PFAS?
None detected above EPA's reporting limits. Washington 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 Washington homes have lead pipes?
Census estimates put 9% of Washington 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. Washington 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.