Tap Water Results

Is Flower Mound, 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 Town of Flower Mound. 6 PFAS were detected below the limits.

3 public water systems serve parts of Flower Mound. The largest, Town of Flower Mound, serves 80,000 people. Your water bill names your system.

Largest system

Town of Flower Mound

80,000 people · Purchased surface water · EPA ID TX0610023

Buys treated water from Utrwd Regional Water Treatment Plant, Dallas Water Utility.

PFASHighest averageLimitStatus
PFOA
One sample above limit
1.1 ppt4 pptOne sample above limit
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: 1.6 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

Full Town of Flower Mound results

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.

Flower Mound homes and lead pipes

5%
of homes built before 1980 (Texas 33%, US 50%)
0%
built before 1950 (Texas 6%)
18%
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 Flower Mound town (tables B25034, B25003). Estimates for small places have a margin of error.

Other water systems serving Flower Mound

  • Cross Timbers Water Supply Corporation
    8,751 people · Purchased surface water · Texas · reported ZIPs here
    PFHxS detectedAlso: Lithium above screening level
  • 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.)
Southlake 6 mi
City of Southlake
City of SouthlakeNone above limits2.89 ppb
Grapevine 7 mi
City of Grapevine
City of GrapevineNone above limits1.7 ppb
Lewisville 8 mi
City of Lewisville
City of LewisvilleNone above limits1.48 ppb
Corinth 8 mi
City of Corinth
City of CorinthNone above limits2.3 ppb
Coppell 9 mi
City of Coppell
City of CoppellNone above limits0 ppb
Keller 10 mi
City of Keller
City of KellerNone above limits2.16 ppb
Flower Mound ZIP codes (2)
  • 75022
  • 75028

Questions

Is Flower Mound tap water safe to drink?

Town of Flower Mound 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 Flower Mound, TX?

3 public water systems serve parts of Flower Mound. The largest is Town of Flower Mound (80,000 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Flower Mound tap water have PFAS?

Town of Flower Mound had 6 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.

Do Flower Mound homes have lead pipes?

Census estimates put 5% of Flower Mound 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. Town of Flower Mound'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.