Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
11
health-based violations
155
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 2010-12-01 → 2010-12-31 |
| MCL | Health-based | Resolved | 2010-12-01 → 2010-12-31 |
| MCL | Health-based | Resolved | 2010-12-01 → 2010-12-31 |
| MCL | Health-based | Resolved | 2005-11-01 → 2005-11-30 |
| MCL | Health-based | Resolved | 2005-11-01 → 2005-11-30 |
| MCL | Health-based | Resolved | 2005-11-01 → 2005-11-30 |
| MCL | Health-based | Resolved | 2005-11-01 → 2005-11-30 |
| MCL | Health-based | Resolved | 2005-09-01 → 2005-09-30 |
| MCL | Health-based | Resolved | 2005-09-01 → 2005-09-30 |
| MCL | Health-based | Resolved | 2005-09-01 → 2005-09-30 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
Other contaminants detected
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of this
system's samples — over 100% is worth reading, but is not by itself a
violation. Where a single sample came in higher than that percentile, it
is noted under the bar. Formal violations are listed separately.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 240 µg/L 18% of the EPA limit 1300 µg/L
worst single sample: 360 µg/L | 56/69 | SYR4 | 2012–2018 |
| Dibromochloromethane | 16.1 µg/L No EPA limit set
worst single sample: 28 µg/L | 56/87 | SYR4 | 2012–2019 |
| Nitrate | 1750 µg/L 18% of the EPA limit 10000 µg/L
worst single sample: 2040 µg/L | 54/138 | SYR4 | 2012–2019 |
| TTHM | 45.305 µg/L 57% of the EPA limit 80 µg/L
worst single sample: 239 µg/L | 48/62 | SYR4 | 2012–2019 |
| Bromoform | 3.78 µg/L No EPA limit set
worst single sample: 5.6 µg/L | 43/87 | SYR4 | 2012–2019 |
| Bromodichloromethane | 42 µg/L No EPA limit set | 19/87 | SYR4 | 2012–2019 |
| Barium | 257.5 µg/L 13% of the EPA limit 2000 µg/L
worst single sample: 283 µg/L | 18/18 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 4.58 µg/L No EPA limit set
worst single sample: 6.4 µg/L | 15/62 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 15/15 | LCR | 2024 |
| Total Haloacetic Acids (HAA5) | 102.56 µg/L 171% of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 200 µg/L | 15/62 | SYR4 | 2012–2019 |
| Lithium | 50.7 µg/L No EPA limit set | 14/16 | UCMR-5 | 2023 |
| Chloroform | 179.65 µg/L No EPA limit set
worst single sample: 189 µg/L | 12/87 | SYR4 | 2012–2019 |
| Lead | 12.655 µg/L 84% of the EPA limit 15 µg/L
worst single sample: 17 µg/L | 12/69 | SYR4 | 2012–2018 |
| Fluoride | 220 µg/L 5.5% of the EPA limit 4000 µg/L
worst single sample: 230 µg/L | 11/20 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 976 µg/L 9.8% of the EPA limit 10000 µg/L
worst single sample: 1220 µg/L | 9/20 | SYR4 | 2012–2015 |
| Dichloroacetic Acid | 87.385 µg/L No EPA limit set
worst single sample: 116.4 µg/L | 8/62 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 13.065 pCi/L No EPA limit set
worst single sample: 13.1 pCi/L | 8/10 | SYR4 | 2012–2018 |
| Combined Radium (-226 And -228) | 3.35 pCi/L 67% of the EPA limit 5 pCi/L
worst single sample: 3.4 pCi/L | 6/6 | SYR4 | 2012–2018 |
| Trichloroacetic Acid | 59.35 µg/L No EPA limit set
worst single sample: 71.3 µg/L | 6/62 | SYR4 | 2012–2019 |
| Xylenes, Total | 1.009 µg/L 0% of the EPA limit 10000 µg/L
worst single sample: 1.01 µg/L | 3/25 | SYR4 | 2012–2019 |
| Cyanide | 67.5 µg/L 34% of the EPA limit 200 µg/L
worst single sample: 70 µg/L | 2/15 | SYR4 | 2014–2019 |
| Gross Alpha, Excl. Radon And U | 5.015 pCi/L 33% of the EPA limit 15 pCi/L
worst single sample: 5.1 pCi/L | 2/7 | SYR4 | 2015–2018 |
| Monobromoacetic Acid | 2.615 µg/L No EPA limit set
worst single sample: 2.7 µg/L | 2/62 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 10.535 µg/L No EPA limit set
worst single sample: 10.8 µg/L | 2/62 | SYR4 | 2012–2019 |
| Arsenic | 2.4 µg/L 24% of the EPA limit 10 µg/L | 1/18 | SYR4 | 2012–2019 |
| Atrazine | 0.1400 µg/L 4.7% of the EPA limit 3 µg/L | 1/42 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Phthalate | 0.9300 µg/L 16% of the EPA limit 6 µg/L | 1/42 | SYR4 | 2012–2019 |
| Hexachlorocyclopentadiene | 0.2300 µg/L 0.5% of the EPA limit 50 µg/L | 1/42 | SYR4 | 2012–2019 |
79 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Gonzales County Wsc
Is Gonzales County Wsc tap water safe to drink?
EPA monitoring detected 30 contaminants in Gonzales County Wsc's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in Gonzales County Wsc's water?
EPA monitoring detected Copper, Dibromochloromethane, Nitrate, TTHM, Bromoform, and others. The full list with the level and data source for each is above.
How many people does Gonzales County Wsc serve?
Gonzales County Wsc reports serving 10,350 people in Texas, per its EPA record.
Has Gonzales County Wsc had any water quality violations?
The EPA has 155 violations on file for Gonzales County Wsc, of which 11 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.