Is Los Indios, TX tap water safe?
The short answer
3 of the 3 utilities serving Los Indios have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Texas’s records: Military Hwy WSC Las Rusias, City of San Benito and East Rio Hondo WSC.
Military Hwy WSC Las Rusias, which serves the most people here, has 2 results above the legal limit and 1 result above EPA’s health benchmark. The worst: Arsenic at 10.4 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 Los Indios’s ZIP codes, from EPA’s estimates.
- Open report
Military Hwy WSC Las Rusias
Texas · serves 17,943 people · about 450 in Los Indios
2 results above the legal limit and 1 result above EPA’s health benchmark. The worst: Arsenic at 10.4 ppb, above the legal limit.
31 health-based violations since 2016
- Open report
City of San Benito
Texas · serves 24,250 people · about 170 in Los Indios
1 result above EPA’s new limit, which takes effect in 2029, 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: PFOS at 4.8 ppt, above EPA’s new limit, which takes effect in 2029.
1 health-based violation since 2016
- Open report
East Rio Hondo WSC
Texas · serves 25,509 people · under 100 in Los Indios
2 results above EPA’s new limit, which takes effect in 2029, 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: PFOS at 5.6 ppt, above EPA’s new limit, which takes effect in 2029.
1 health-based violation since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Military Hwy WSC Las Rusias’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Arsenic, Total trihalomethanes (TTHM)
Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic, Total trihalomethanes (TTHM)
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic, Total trihalomethanes (TTHM)
Water testing near Los Indios
The lab Texas certifies closest to Los Indios, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Texas Department of State Health Services South Texas Laboratory
Harlingen, TX · about 9 miles
Certified for bacteria
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 TexasWhich ZIP codes are in Los Indios: 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 Los Indios
Other towns in Cameron County with a page of their own.
What to do next
- Read Military Hwy WSC Las Rusias’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for ArsenicRanked by certification and what they cost over five years.The best reverse osmosis systems, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water