Is Missouri City, TX tap water safe?

Data: U.S. EPA · How we read the data · How we check it

No federal limits exceeded in EPA data for Quail Valley Utility District.

10 public water systems serve parts of Missouri City. The largest, Quail Valley Utility District, serves 14,409 people. Your water bill names your system.

Largest system

Quail Valley Utility District

14,409 people · Groundwater · EPA ID TX0790028

Buys treated water from Fort Bend County Water Control & Improvement District 2, Thunderbird Utility District System 2, Thunderbird Utility District 1, Palmer Plantation Municipal Utility District 1, Palmer Plantation Municipal Utility District 2, Meadowcreek Municipal Utility District, Fort Bend County Municipal Utility District 42 Wat Plat.

PFAS	Highest average	Limit	Status
PFOA Not detected	–	4 ppt	Not detected
PFOS Not detected	–	4 ppt	Not detected
PFHxS Not detected	–	10 ppt	Not detected
PFNA Not detected	–	10 ppt	Not detected
HFPO-DA (GenX) Not detected	–	10 ppt	Not 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: 0 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.

Missouri City homes and lead pipes

26%

of homes built before 1980 (Texas 33%, US 50%)

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

Which system serves your ZIP code

Based on the ZIP codes each system reported serving. Boundaries don't follow ZIP lines exactly, so your water bill is the final word.

System	ZIP codes in Missouri City
Quail Valley Utility District 14,409 people	77459
Blue Ridge West Municipal Utility District 7,545 people	77489

Other water systems serving Missouri City

Sienna Municipal Utility District 10
7,824 people · Purchased groundwater · Texas · reported ZIPs here
Lithium above screening level
First Colony Municipal Utility District 9
7,818 people · Groundwater · Texas · reported ZIPs here
Lithium above screening level
Blue Ridge West Municipal Utility District
7,545 people · Groundwater · Texas · reported ZIPs here
Gross alpha violationsAlso: Lithium above screening level
Sienna Municipal Utility District 3
7,365 people · Purchased groundwater · Texas · reported ZIPs here
Lithium above screening level
Fort Bend County Municipal Utility District 26 Quail Green West
5,424 people · Groundwater · Texas · reported ZIPs here
Lithium above screening level
City of Missouri City
4,847 people · Purchased groundwater · Texas · lists this city
Lithium above screening level

3 more systems

Fort Bend County Municipal Utility District 42 Wat Plat
4,395 people · Groundwater · Texas · reported ZIPs here
Lithium above screening level
Thunderbird Utility District 1
4,203 people · Groundwater · Texas · reported ZIPs here
Lithium above screening level
Fort Bend County Municipal Utility District 48
3,969 people · Purchased groundwater · Texas · reported ZIPs here
Lithium above screening level

How nearby cities compare

City	Main water system	PFAS	Lead (90th pct.)
Sugar Land 6 mi City of Sugar Land	City of Sugar Land	None above limits	1.51 ppb
Pearland 13 mi City of Pearland	City of Pearland	None above limits	2.1 ppb
Rosenberg 17 mi City of Rosenberg	City of Rosenberg	None above limits	1.87 ppb
Houston 18 mi City of Houston	City of Houston	None above limits	5 ppb
Friendswood 20 mi City of Friendswood	City of Friendswood	None above limits	4.61 ppb
Alvin 21 mi City of Alvin	City of Alvin	None above limits	0 ppb

Questions

Is Missouri City tap water safe to drink?

Quail Valley Utility District 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 Missouri City, TX?

10 public water systems serve parts of Missouri City. The largest is Quail Valley Utility District (14,409 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Missouri City tap water have PFAS?

None detected above EPA's reporting limits. Quail Valley Utility District 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 Missouri City homes have lead pipes?

Census estimates put 26% of Missouri City 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. Quail Valley Utility District'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.