Tap Water Results

Is Friendswood, 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 Friendswood. 3 PFAS were detected below the limits.

3 public water systems serve parts of Friendswood. The largest, City of Friendswood, serves 43,190 people. Your water bill names your system.

Largest system

City of Friendswood

43,190 people · Purchased surface water · EPA ID TX0840002

Buys treated water from City of Houston.

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: 4.61 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.

Friendswood homes and lead pipes

30%
of homes built before 1980 (Texas 33%, US 50%)
0%
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 Friendswood city (tables B25034, B25003). Estimates for small places have a margin of error.

Other water systems serving Friendswood

  • Harris County Municipal Utility District 55 Heritage Park
    16,392 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.)
League City 6 mi
City of League City
City of League CityNone above limits3 ppb
Alvin 6 mi
City of Alvin
City of AlvinNone above limits0 ppb
Pearland 8 mi
City of Pearland
City of PearlandNone above limits2.1 ppb
Pasadena 11 mi
City of Pasadena
City of PasadenaNone above limits3.72 ppb
Deer Park 13 mi
City of Deer Park
City of Deer ParkNone above limits0 ppb
La Porte 14 mi
City of la Porte
City of la PorteNone above limits2.35 ppb
Friendswood ZIP codes (1)
  • 77546

Questions

Is Friendswood tap water safe to drink?

City of Friendswood 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 Friendswood, TX?

3 public water systems serve parts of Friendswood. The largest is City of Friendswood (43,190 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Friendswood tap water have PFAS?

City of Friendswood had 3 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.

Do Friendswood homes have lead pipes?

Census estimates put 30% of Friendswood 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 Friendswood'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.