Tap Water Results

Is Roy, 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 Roy City Water System.

3 public water systems serve parts of Roy. The largest, Roy City Water System, serves 38,800 people. Your water bill names your system.

Largest system

Roy City Water System

38,800 people · Purchased surface water · EPA ID UTAH29016

Buys treated water from Weber Basin Water Conservancy District – Central.

PFASHighest averageLimitStatus
PFOA
Not detected
–4 pptNot detected
PFOS
Not detected
–4 pptNot detected
PFHxS
Not detected
–10 pptNot detected
PFNA
Not detected
–10 pptNot detected
HFPO-DA (GenX)
Not detected
–10 pptNot detected

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: 1.7 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: 1

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.

Roy homes and lead pipes

42%
of homes built before 1980 (Utah 36%, US 50%)
2%
built before 1950 (Utah 9%)
16%
of households rent (Utah 30%)

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 Roy city (tables B25034, B25003). Estimates for small places have a margin of error.

Other water systems serving Roy

  • Hooper Water Improvement District
    20,820 people · Groundwater · Utah · reported ZIPs here
    Lithium above screening levelAlso: 1 health-based violation since 2016
  • Sunset City Water System
    5,300 people · Purchased surface water · Utah · reported ZIPs here
    Lithium above screening level

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
West Haven 3 mi
Ogden City Water System
Ogden City Water SystemNone above limits1.9 ppb
Clearfield 5 mi
Clearfield City Water System
Clearfield City Water SystemNone above limits2.8 ppb
Syracuse 6 mi
City of Syracuse Water System
City of Syracuse Water SystemNone above limits2.6 ppb
Layton 8 mi
Layton City Water System
Layton City Water SystemNone above limits4.08 ppb
Kaysville 11 mi
Kaysville City Water System
Kaysville City Water SystemNone above limits2.4 ppb
Farmington 15 mi
Farmington City Water System
Farmington City Water SystemNone above limits3 ppb
Roy ZIP codes (1)
  • 84067

Questions

Is Roy tap water safe to drink?

Roy City Water System had 1 health-based violation 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 Roy, UT?

3 public water systems serve parts of Roy. The largest is Roy City Water System (38,800 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Roy tap water have PFAS?

None detected above EPA's reporting limits. Roy 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 Roy homes have lead pipes?

Census estimates put 42% of Roy 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. Roy 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.