Tap Water Results

Is Wylie, TX 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 City of Wylie. 4 PFAS were detected below the limits.

4 public water systems serve parts of Wylie. The largest, City of Wylie, serves 48,393 people. Your water bill names your system.

Largest system

City of Wylie

48,393 people · Purchased surface water · EPA ID TX0430011

Buys treated water from North Texas Municipal Water District Wylie Water Treatment Plant.

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: 1.03 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 Texas, 28 of 1,130 water systems EPA tested had PFAS above a 2024 federal limit, and 13 systems were above the lead action level in results from the last five years. Texas results.

Wylie homes and lead pipes

7%
of homes built before 1980 (Texas 33%, US 50%)
1%
built before 1950 (Texas 6%)
23%
of households rent (Texas 37%)

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

Other water systems serving Wylie

  • East Fork Special Utility District
    17,589 people · Purchased surface water · Texas · reported ZIPs here
    No PFAS above limits
  • Wylie Northeast Special Utility District
    11,430 people · Purchased surface water · Texas · reported ZIPs here
    No PFAS above limits
  • Bryan County Rws & Swmd #2
    6,270 people · Surface water · Oklahoma · reported ZIPs here
    Total trihalomethanes (TTHM) violationsAlso: Haloacetic acids (HAA5) violation

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Sachse 6 mi
City of Sachse
City of SachseNone above limits0 ppb
Rowlett 8 mi
City of Rowlett
City of RowlettNone above limits2.6 ppb
Rockwall 9 mi
City of Rockwall
City of RockwallNone above limits1.81 ppb
Fate 10 mi
City of Fate
City of FateNone above limits1.34 ppb
Allen 10 mi
City of Allen
City of AllenNone above limits1.7 ppb
Garland 11 mi
City of Garland
City of GarlandNone above limits1.22 ppb
Wylie ZIP codes (1)
  • 75098

Questions

Is Wylie tap water safe to drink?

City of Wylie 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 Wylie, TX?

4 public water systems serve parts of Wylie. The largest is City of Wylie (48,393 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Wylie tap water have PFAS?

City of Wylie had 4 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.

Do Wylie homes have lead pipes?

Census estimates put 7% of Wylie homes as built before 1980 (Texas: 33%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. City of Wylie'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.