Skip to content
TapBuff
ZIP

Is Canyon Lake, TX tap water safe?

15 utilities serve Canyon Lake, 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

7 of the 15 utilities serving Canyon Lake have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Texas’s records: Sjwtx Triple Peak Plant, Clwsc Canyon Lake Shores, Crystal Clear SUD and 4 more.

Sjwtx Triple Peak Plant, which serves the most people here, has 1 result above the legal limit, 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: Total trihalomethanes (TTHM) at 45.1 ppb, above the legal limit.

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 Canyon Lake’s ZIP codes, from EPA’s estimates.

5 more utilities in Canyon Lake

By EPA’s estimate, each serves fewer people in Canyon Lake than those above.

What handles it

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

Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money

Every claim, and more filters, in the full report

Water testing near Canyon Lake

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 Canyon Lake, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Edwards Aquifer Research & Data Center, Texas State University

    San Marcos, TX · about 18 miles

    Certified for bacteria

    (512) 245-2329

  • Wallgren Environmental Services dba Pollution Control Services

    Universal City, TX · about 23 miles

    Certified for bacteria, lead and copper

    (210) 340-0343

  • Alamo Analytical Laboratories, Ltd.

    San Antonio, TX · about 27 miles

    Certified for lead and copper

    (210) 340-8121

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 Canyon Lake

Which ZIP codes are in Canyon Lake: 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 Canyon Lake

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

What to do next