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.
28
health-based violations
39
violations on file
2
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 2023-03-01 → 2023-03-31 |
| MCL | Health-based | Resolved | 2023-03-01 → 2023-03-31 |
| MCL | Health-based | Resolved | 2023-03-01 → 2023-03-31 |
| MCL | Health-based | Resolved | 2023-03-01 → 2023-03-31 |
| MCL | Health-based | Resolved | 2015-10-01 → 2015-12-31 |
| MCL | Health-based | Resolved | 2015-10-01 → 2015-12-31 |
| MCL | Health-based | Resolved | 2015-10-01 → 2015-12-31 |
| MCL | Health-based | Resolved | 2015-10-01 → 2015-12-31 |
| MCL | Health-based | Resolved | 2015-07-01 → 2015-09-30 |
| MCL | Health-based | Resolved | 2015-07-01 → 2015-09-30 |
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 |
|---|---|---|---|---|
| Chlorite | 710 µg/L 71% of the EPA limit 1000 µg/L
worst single sample: 960 µg/L | 668/680 | SYR4 | 2013–2019 |
| Dibromochloromethane | 34.256 µg/L No EPA limit set
worst single sample: 51.5 µg/L | 138/138 | SYR4 | 2012–2019 |
| Bromodichloromethane | 17.22 µg/L No EPA limit set
worst single sample: 23.5 µg/L | 137/138 | SYR4 | 2012–2019 |
| Bromoform | 31.72 µg/L No EPA limit set
worst single sample: 51.8 µg/L | 137/138 | SYR4 | 2012–2019 |
| Chloroform | 6.84 µg/L No EPA limit set
worst single sample: 10.1 µg/L | 127/138 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 19.64 µg/L No EPA limit set
worst single sample: 31.9 µg/L | 114/114 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 10.34 µg/L No EPA limit set
worst single sample: 14.4 µg/L | 114/114 | SYR4 | 2012–2019 |
| TTHM | 82.065 µg/L 103% of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 131 µg/L | 114/114 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 32.575 µg/L 54% of the EPA limit 60 µg/L
worst single sample: 45.6 µg/L | 114/114 | SYR4 | 2012–2019 |
| Copper | 104.775 µg/L 8.1% of the EPA limit 1300 µg/L
worst single sample: 1250 µg/L | 106/106 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 4.7 µg/L No EPA limit set
worst single sample: 6.4 µg/L | 72/114 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 6.95 µg/L No EPA limit set
worst single sample: 11.7 µg/L | 48/114 | SYR4 | 2012–2019 |
| Nitrate | 180 µg/L 1.8% of the EPA limit 10000 µg/L
worst single sample: 330 µg/L | 48/54 | SYR4 | 2012–2019 |
| Fluoride | 658.5 µg/L 16% of the EPA limit 4000 µg/L
worst single sample: 660 µg/L | 24/24 | SYR4 | 2012–2019 |
| Barium | 133.95 µg/L 6.7% of the EPA limit 2000 µg/L
worst single sample: 135 µg/L | 22/22 | SYR4 | 2012–2019 |
| Lead | 5.147 µg/L 34% of the EPA limit 15 µg/L
worst single sample: 8.8 µg/L | 22/106 | SYR4 | 2012–2019 |
| Selenium | 5.38 µg/L 11% of the EPA limit 50 µg/L
worst single sample: 5.9 µg/L | 14/22 | SYR4 | 2012–2019 |
| Lead | 0.00080 mg/L 5.3% of the EPA limit 0.0150 mg/L | 13/13 | LCR | 2025 |
| Lithium | 64.4 µg/L No EPA limit set | 8/8 | UCMR-5 | 2024 |
| Arsenic | 2.9 µg/L 29% of the EPA limit 10 µg/L
worst single sample: 3 µg/L | 5/22 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 7.2 pCi/L No EPA limit set
worst single sample: 7.3 pCi/L | 3/3 | SYR4 | 2016–2017 |
| Monochloroacetic Acid | 3.38 µg/L No EPA limit set
worst single sample: 3.4 µg/L | 3/114 | SYR4 | 2012–2019 |
| Antimony, Total | 0.6430 µg/L 11% of the EPA limit 6 µg/L | 1/22 | SYR4 | 2012–2019 |
| Atrazine | 0.1000 µg/L 3.3% of the EPA limit 3 µg/L | 1/29 | SYR4 | 2012–2019 |
| Cyanide | 50 µg/L 25% of the EPA limit 200 µg/L | 1/18 | SYR4 | 2014–2019 |
| Combined Radium (-226 And -228) | 1.5 pCi/L 30% of the EPA limit 5 pCi/L | 1/1 | SYR4 | 2016 |
| Combined Uranium | 1.6 µg/L 5.3% of the EPA limit 30 µg/L | 1/3 | SYR4 | 2016–2017 |
| Gross Alpha, Excl. Radon And U | 2 pCi/L 13% of the EPA limit 15 pCi/L | 1/3 | SYR4 | 2016–2017 |
78 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-PF3ONSAdonaAsbestosBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Agua Sud
Is Agua Sud tap water safe to drink?
EPA monitoring detected 31 contaminants in Agua Sud'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 Agua Sud's water?
EPA monitoring detected Chlorite, Dibromochloromethane, Bromodichloromethane, Bromoform, Chloroform, and others. The full list with the level and data source for each is above.
How many people does Agua Sud serve?
Agua Sud reports serving 53,796 people in Texas, per its EPA record.
Has Agua Sud had any water quality violations?
The EPA has 39 violations on file for Agua Sud, of which 28 are health-based (a contaminant limit or required treatment was breached) and 2 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.