San Benito Tap Water Quality Report
San Benito's water has 4 contaminants above EPA MCLGs. We recommend using a certified water filter.
Other systems listed for San Benito with results above guidelines: HARLINGEN WATER WORKS SYSTEM (4 above guidelines), MILITARY HWY WSC LAS RUSIAS (4 above guidelines), EAST RIO HONDO WSC (6 above guidelines)
People Served
24,250
Health-based violations since 2020
0
CITY OF SAN BENITO. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Jun 2022 ยท CITY OF SAN BENITO
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is San Benito Tap Water Safe to Drink?
We strongly recommend using a certified water filter to reduce exposure: San Benito's water has 4 contaminants above EPA health-based guidelines. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in San Benito's water.
CITY OF SAN BENITO, San Benito's water system, serves 24,250 people. 3 other systems are listed for San Benito. Each system's results are listed under its own name, never added to CITY OF SAN BENITO's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for CITY OF SAN BENITO is from Jun 2022.
In EPA's 2023โ2026 UCMR 5 testing, CITY OF SAN BENITO measured lithium at up to 49.3 ยตg/L, which EPA counts as above its health reference level of 10 ยตg/L. That level is a screening value EPA uses to decide what to study further, not a legal limit, and this result does not change this page's water-quality summary.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Texas
San Benito Water Service Areas

What these numbers actually mean for San Benito, TX
We read San Benito, TXโs published record and send you a short report โ which findings warrant a decision, which to ignore, and what to do about it. Including when the answer is nothing.
- 4 contaminants above EPA MCLGs and 10 contaminants with an EPA health goal detected in some samples (no level on file)
- 230 results on file
- 23 PFAS compounds on record
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Recommended Water Filters for San Benito
Based on San Benito's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.

Culligan
ZeroWater
NSF Certified:
Flow Rate
1.9 gpm
Daily Production
1 gpd
Highlights:
- Compact design
- Easy to set up
- Affordable
- NSF-42, NSF-53, NSF-401 certified
Removes 19 contaminants:
+14 more
Strontium, Molybdenum, Fluoride, Uranium, Lead, Total PFAS, Chlorine, 25, Phosphorus, Bicarbonate, Calcium, Carbonate, Magnesium, Sodium

Santevia
Bath Filter
NSF Certified:
Flow Rate
0.36 gpm
Highlights:
- Organic cotton design reduces plastic used in construction
- Affordable upfront & ongoing cost
- The only bath filter that removed 100% chlorine with โnormalโ faster faucet flow
Removes 1 contaminants:

Waterdrop
A1
NSF Certified:
Flow Rate
1 gpm
Highlights:
- Performance certified
- Lower price than Philips
- Hot water dispensing
- Compact design
Removes 5 contaminants:

Whirlpool Corporation
W11256135
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.7 gpm
Removes 19 contaminants:
+14 more
Benzene, Carbofuran, Chlorine (Free), Chlorine (Total), Chlorine Dioxide, Chlorobenzene, Cryptosporidium, Ethylbenzene, Lead, Mercury, Metolachlor, Tetrachloroethylene, Toxaphene, Turbidity
Filters for what San Benito reported
Verify Your Water Quality with Independent Testing
With 4 contaminants above EPA MCLGs and 10 contaminants with an EPA health goal detected in some samples (no level on file), independent laboratory testing provides a second opinion and can track changes over time.

SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.

Tap Score
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.

Tap Score
PFAS Forever Chemicals Test
$339.95
Specialized test for PFOA, PFOS, and 24 other forever chemicals. Essential for areas near military bases, airports, or industrial sites.
With 4 contaminants above health guidelines, you may want to explore water purification options. Learn how to make distilled water at home for applications like humidifiers, CPAP machines, and baby formula.
What San Benito's water readings can explain
Utility-reported data for San Benito includes sulfate and a chlorine-based disinfectant โ the readings behind these common tap water questions. We publish a city-level hardness figure for San Benito, resolved from its water systems where they report one and estimated from county sampling where they do not. Each page starts with the hot-tap and cold-tap check, then shows what your own water system reported.
On a private well near San Benito? Public-water results do not apply to private wells. See Cameron County well water testing and USGS risk data โ modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in San Benito
San Benito's tap water measures 11.6 grains per gallon (198.0 mg/L) โ very hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for 11.6 gpg water in San Benito โ equipment and local installation labour for your ZIP code, with the sizing arithmetic shown in full. For the national picture first, read what a water softener costs โ equipment, installation labour and ten-year ownership, each separated out. For Texas as a whole, read water softener cost in Texas โ priced against the plumber wage published for the state.
Frequently Asked Questions About San Benito Tap Water
San Benito's water has 4 contaminants above EPA MCLGs. We strongly recommend using a certified water filter to reduce exposure to these contaminants. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in San Benito's water.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach CITY OF SAN BENITO. For a problem with your water now (discolored water, no water, low pressure, a leak), contact CITY OF SAN BENITO directly.
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