78629
Gonzales, TX
Gonzales County
CITY OF GONZALES

Is Gonzales tap water safe to drink?

Higher concern
Last tested: November 2023
Source: Official EPA UCMR5 federal monitoring data. Last tested November 2023.
Townships:
  • Cost-Wrightsboro CCD, TX
  • Gonzales CCD, TX
  • Harwood-Ottine CCD, TX
  • Nixon CCD, TX
Neighborhood:
  • Gonzales

The short answer for Gonzales

Gonzales tap water has 6 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.

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.
NSF/ANSI 42, 53, 401 & P473Removes 99.99% PFASMade in USABPA-free
Best for renters or quick setup. No installation needed.
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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
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
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
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
PFHxS <0.003 µg/L 0.004 µg/L Below limit
HFPO-DA <0.005 µg/L 0.01 µg/L Below limit
PFNA <0.004 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
PFHxS <0.003 µg/L 0.004 µg/L Below limit
HFPO-DA <0.005 µg/L 0.01 µg/L Below limit
PFNA <0.004 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

Water utilities serving ZIP 78629

Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.

Modeled boundaries are shown with a dashed outline.

Frequently Asked Questions about ZIP 78629 Tap Water

What contaminants are above EPA limits in ZIP 78629?

ZIP 78629 has 6 contaminants above EPA health guidelines in the latest available data, including 6:2 FTS at 119.4x the EPA guideline. The full table on this page lists every tested compound and its measured level.

Will boiling ZIP 78629 tap water remove 6:2 FTS?

Boiling tap water can kill many pathogens, but it does not remove most chemical contaminants tracked in EPA monitoring. Several dissolved contaminants can even concentrate as water evaporates. For the chemical contaminants reported in ZIP 78629, a certified filter is more reliable.

Do basic pitcher filters remove 6:2 FTS?

Basic pitcher filters are typically rated for chlorine, taste, and odor (NSF/ANSI 42), not for the broader list of contaminants tracked in EPA monitoring. Match the certification (NSF/ANSI 42, 53, 58, or P473) to the specific compounds listed in this report before assuming a filter helps.

Who provides tap water in ZIP 78629?

Public records identify CITY OF GONZALES as a primary water system associated with ZIP 78629. Service boundaries can vary by address, so confirm exact service with the utility.

When was ZIP 78629 tap water last tested?

The most recent test date used in this report is November 2023. EnviroClarity last refreshed this page on 2026-05-05.

Where can I find the official water quality report for ZIP 78629?

Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact CITY OF GONZALES or visit their website for the latest official report covering ZIP 78629. The EPA also maintains a national CCR locator.

Primary source EPA UCMR5 (2023-2025)
Guideline source EPA drinking water standard (lithium: 10 µg/L)
Last tested November 2023
Last page update 2026-05-05

Check another ZIP code

    Nearby ZIP reports

    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