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Is Four Corners, TX tap water safe?

15 utilities serve Four Corners, by EPA’s records. Here is what EPA’s and Texas’s records show for each, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

2 of the 15 utilities serving Four Corners have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Texas’s records: Kingsbridge MUD and Mission Bend MUD 2.

City of Sugar Land, which serves the most people here, has 1 result above EPA’s new limit, which takes effect in 2029, 3 results above the health goal and 1 result above EPA’s health benchmark. The worst: PFOA at 4.1 ppt, above EPA’s new limit, which takes effect in 2029.

A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Four Corners’s ZIP codes, from EPA’s estimates.

5 more utilities in Four Corners

By EPA’s estimate, each serves fewer people in Four Corners than those above.

  • Harris County MUD 158serves 6,798 people · about 390 in Four Corners · no health-based violations since 2016
  • Mission Bend MUD 1serves 6,546 people · about 370 in Four Corners · no health-based violations since 2016
  • Fort Bend County FWSD 2serves 3,258 people · about 350 in Four Corners · no health-based violations since 2016
  • Bissonnet MUDserves 8,160 people · about 280 in Four Corners · no health-based violations since 2016
  • Chelford One MUDserves 4,557 people · about 270 in Four Corners · no health-based violations since 2016

MUD stands for municipal utility district, a local water and sewer district common in Texas.

What handles it

Each of these is certified, on a certifier’s listing, for a result above a line in City of Sugar Land’s water, which serves the most people here. Another utility’s report names what handles its own results.

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Every claim, and more filters, in the full report

Water testing near Four Corners

A utility tests the water it sends out. A test of your own tap shows what your pipes add, and on a private well it is the only test there is. It takes a lab Texas certifies.

The 3 labs Texas certifies closest to Four Corners, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • ALS Laboratory Group, Environmental Services Division – Houston, Texas

    Houston, TX · about 4 miles

    Certified for lead and copper

    (281) 530-5656

  • Envirodyne Laboratories, Inc.

    Houston, TX · about 4 miles

    Certified for bacteria, lead and copper

    (281) 568-7880

  • Eurofins Xenco, LLC -Houston

    Stafford, TX · about 6 miles

    Certified for lead and copper

    (281) 240-4200

Texas Well Owner Network, Texas A&M AgriLife Extension: Well Informed screening events, where well owners bring in water samples to be screened for common contaminants, followed by an hour-long session explaining the results. Upcoming events are on the network's calendar. Trainings, Texas Well Owner Network.

All 80 certified labs for Texas

ZIP codes in Four Corners

Which ZIP codes are in Four Corners: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: TCEQ, drinking water laboratories approved for public water system samples; distances from the Census 2020 ZIP code tabulation area gazetteer.

Near Four Corners

Other towns in Harris County with a page of their own.

What to do next