78629
Gonzales, TX
CITY OF GONZALES

Is Gonzales tap water safe to drink?

Higher concern
Last tested: November 2023
Action Advised
Source: Official EPA UCMR5 federal monitoring data | Last tested November 2023

Can you drink the tap water in Gonzales?

Gonzales tap water has 5 contaminants above EPA guidelines, including 6:2 FTS at 119,4× the limit (tested November 2023). See the full compound-by-compound breakdown and filter recommendations.

Recommended for Gonzales tap water
Water filter for Gonzales tap water: Epic Pure XP Water Filter Pitcher
Pitcher filter
Epic Pure XP Water Filter Pitcher
NSF-certified dual-layer filtration reduces 70+ contaminants including PFAS, lead, chlorine, microplastics, and bacteria.
Contaminants above EPA limits detected in Gonzales. Fastest way to reduce exposure.
See certified filter on Amazon

The health risk for Gonzales

PFAS ('forever chemicals') have been detected above EPA limits in this water system's most recent tests. These synthetic chemicals do not break down in the body and are linked to a range of health effects. A certified filter is strongly recommended.
  • 6:2 FTS, ADONA, lithium, PFBS, PFPeA above limit.
6:2 FTS concentration (µg/L) November 2023
0 µg/L 0.005 µg/L 1 µg/L
0.597 µg/L
Detected
µg/L
0.005 µg/L
EPA limit
guideline
11840% above limit
Comparison
vs. guideline
EPA limit: 0.005 µg/L | Your water: 0.597 µg/L
Certified Filters for Gonzales Tap Water

6:2 FTS (a PFAS 'forever chemical') was detected above EPA limits. These filters are independently certified to reduce common drinking-water contaminants.

Water filter recommendation for Gonzales tap water: Epic Pure XP Water Filter Pitcher
Pitcher filter
Epic Pure XP Water Filter Pitcher
NSF-certified dual-layer filtration reduces 70+ contaminants including PFAS, lead, chlorine, microplastics, and bacteria.
Best for renters or quick setup. No installation needed.
See certified filter on Amazon
Water filter recommendation for Gonzales tap water: Waterdrop G3P600 Reverse Osmosis System
Under-sink RO system
Waterdrop G3P600 Reverse Osmosis System
8-stage tankless RO system certified to NSF/ANSI 58, reduces 1,000+ contaminants including PFAS, lead, arsenic, fluoride, and nitrates.
Best for homeowners. Heavy-duty filtration for long-term protection.
See certified filter on Amazon
Most elevated compounds
Compound Measurement EPA Limit Comparison
6:2 FTS
Tested: November 2023 · CITY OF GONZALES		 0.597 µg/L 0.005 µg/L 11840% above limit
lithium
Tested: August 2023 · GONZALES COUNTY WSC		 34.900 µg/L 10 µg/L 249% above limit
PFPeA
Tested: November 2023 · CITY OF GONZALES		 0.007 µg/L 0.003 µg/L 120% above limit
PFBS
Tested: November 2023 · CITY OF GONZALES		 0.004 µg/L 0.003 µg/L 27% above limit
ADONA
Tested: November 2023 · CITY OF GONZALES		 0.003 µg/L 0.003 µg/L 7% above limit
View all tested compounds

CITY OF GONZALES · Tested: November 2023

Compound Measurement EPA Limit Comparison
6:2 FTS 0.597 µg/L 0.005 µg/L 11840% above limit
PFPeA 0.007 µg/L 0.003 µg/L 120% above limit
PFBS 0.004 µg/L 0.003 µg/L 27% above limit
ADONA 0.003 µg/L 0.003 µg/L 7% above limit
lithium 9.350 µg/L 10 µg/L 94% of limit
PFHxA 0.005 µg/L 3 µg/L 0.2% of limit
HFPO-DA <0.005 µg/L 0.01 µg/L Below limit
PFNA <0.004 µg/L 0.01 µg/L Below limit
PFHxS <0.003 µg/L 0.01 µg/L Below limit
PFBA <0.005 µg/L 6 µg/L Below limit
11Cl-PF3OUdS <0.005 µg/L 0.005 µg/L Below limit
4:2 FTS <0.003 µg/L 0.003 µg/L Below limit
8:2 FTS <0.005 µg/L 0.005 µg/L Below limit
9Cl-PF3ONS <0.002 µg/L 0.002 µg/L Below limit
PFDA <0.003 µg/L 0.003 µg/L Below limit
PFDoA <0.003 µg/L 0.003 µg/L Below limit
PFHpA <0.003 µg/L 0.003 µg/L Below limit
PFHpS <0.003 µg/L 0.003 µg/L Below limit
PFOA <0.004 µg/L 0.004 µg/L Below limit
PFOS <0.004 µg/L 0.004 µg/L Below limit
PFTrDA <0.007 µg/L 0.007 µg/L Below limit
PFUnA <0.002 µg/L 0.002 µg/L Below limit

GONZALES COUNTY WSC · Tested: August 2023

Compound Measurement EPA Limit Comparison
lithium 34.900 µg/L 10 µg/L 249% above limit
HFPO-DA <0.005 µg/L 0.01 µg/L Below limit
PFNA <0.004 µg/L 0.01 µg/L Below limit
PFHxS <0.003 µg/L 0.01 µg/L Below limit
PFHxA <0.003 µg/L 3 µg/L Below limit
PFBA <0.005 µg/L 6 µg/L Below limit
11Cl-PF3OUdS <0.005 µg/L 0.005 µg/L Below limit
4:2 FTS <0.003 µg/L 0.003 µg/L Below limit
6:2 FTS <0.005 µg/L 0.005 µg/L Below limit
8:2 FTS <0.005 µg/L 0.005 µg/L Below limit
9Cl-PF3ONS <0.002 µg/L 0.002 µg/L Below limit
ADONA <0.003 µg/L 0.003 µg/L Below limit
PFBS <0.003 µg/L 0.003 µg/L Below limit
PFDA <0.003 µg/L 0.003 µg/L Below limit
PFDoA <0.003 µg/L 0.003 µg/L Below limit
PFHpA <0.003 µg/L 0.003 µg/L Below limit
PFHpS <0.003 µg/L 0.003 µg/L Below limit
PFOA <0.004 µg/L 0.004 µg/L Below limit
PFOS <0.004 µg/L 0.004 µg/L Below limit
PFPeA <0.003 µg/L 0.003 µg/L Below limit
PFTrDA <0.007 µg/L 0.007 µg/L Below limit
PFUnA <0.002 µg/L 0.002 µg/L Below limit
Primary source EPA UCMR5 (2023-2025)
Guideline source EPA drinking water standard (lithium: 10 µg/L)
Last tested November 2023
Last page update 2026-03-31

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    Data reflects publicly reported utility records from EPA datasets and local utility disclosures. This information is educational and not medical advice.

    Protect your water in Gonzales → see certified filters