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.
43
health-based violations
58
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| TT | Health-based | Resolved | 2021-02-01 → 2021-02-28 |
| TT | Health-based | Resolved | 2021-02-01 → 2021-02-28 |
| TT | Health-based | Resolved | 2021-02-01 → 2021-02-28 |
| TT | Health-based | Resolved | 2021-02-01 → 2021-02-28 |
| TT | Health-based | Resolved | 2021-02-01 → 2021-02-28 |
| TT | Health-based | Resolved | 2021-02-01 → 2021-02-28 |
| TT | Health-based | Resolved | 2021-02-01 → 2021-02-28 |
| TT | Health-based | Resolved | 2021-02-01 → 2021-02-28 |
| MCL | Health-based | Resolved | 2015-08-01 → 2015-08-31 |
| MCL | Health-based | Resolved | 2015-08-01 → 2015-08-31 |
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 |
|---|---|---|---|---|
| Chloroform | 20.91 µg/L No EPA limit set
worst single sample: 52 µg/L | 387/387 | SYR4 | 2012–2019 |
| Bromodichloromethane | 21.475 µg/L No EPA limit set
worst single sample: 49 µg/L | 386/387 | SYR4 | 2012–2019 |
| Dibromochloromethane | 22.475 µg/L No EPA limit set
worst single sample: 68.9 µg/L | 386/387 | SYR4 | 2012–2019 |
| TTHM | 65.94 µg/L 82% of the EPA limit 80 µg/L
worst single sample: 234 µg/L | 373/373 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 13.19 µg/L No EPA limit set
worst single sample: 40.4 µg/L | 372/373 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 35.69 µg/L 59% of the EPA limit 60 µg/L
worst single sample: 54.1 µg/L | 372/373 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 18.355 µg/L No EPA limit set
worst single sample: 34.1 µg/L | 370/373 | SYR4 | 2012–2019 |
| Bromoform | 18.7 µg/L No EPA limit set
worst single sample: 115.6 µg/L | 359/387 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 7.3 µg/L No EPA limit set
worst single sample: 14.1 µg/L | 335/373 | SYR4 | 2012–2019 |
| Copper | 180.91 µg/L 14% of the EPA limit 1300 µg/L
worst single sample: 912 µg/L | 302/306 | SYR4 | 2012–2017 |
| Chlorite | 690 µg/L 69% of the EPA limit 1000 µg/L
worst single sample: 740 µg/L | 198/198 | SYR4 | 2017–2019 |
| Lead | 7.399 µg/L 49% of the EPA limit 15 µg/L
worst single sample: 23.8 µg/L | 148/306 | SYR4 | 2012–2017 |
| Monobromoacetic Acid | 3.95 µg/L No EPA limit set
worst single sample: 10.8 µg/L | 51/373 | SYR4 | 2012–2019 |
| Nitrate | 590 µg/L 5.9% of the EPA limit 10000 µg/L
worst single sample: 780 µg/L | 42/42 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 7.99 µg/L No EPA limit set
worst single sample: 8.3 µg/L | 28/373 | SYR4 | 2012–2019 |
| Cyanide | 210 µg/L 105% of the EPA limit, at the 95th percentile of samples — 200 µg/L
worst single sample: 270 µg/L | 27/28 | SYR4 | 2014–2019 |
| Lead | 0.0017 mg/L 11% of the EPA limit 0.0150 mg/L | 17/17 | LCR | 2023 |
| Atrazine | 0.3190 µg/L 11% of the EPA limit 3 µg/L
worst single sample: 0.3300 µg/L | 12/16 | SYR4 | 2012–2019 |
| Fluoride | 620 µg/L 16% of the EPA limit 4000 µg/L
worst single sample: 640 µg/L | 11/11 | SYR4 | 2012–2019 |
| Barium | 136.05 µg/L 6.8% of the EPA limit 2000 µg/L
worst single sample: 150 µg/L | 10/10 | SYR4 | 2013–2019 |
| Lithium | 26.2 µg/L No EPA limit set | 4/4 | UCMR-5 | 2023 |
| Selenium | 5.34 µg/L 11% of the EPA limit 50 µg/L
worst single sample: 5.5 µg/L | 3/10 | SYR4 | 2013–2019 |
| Arsenic | 3.055 µg/L 31% of the EPA limit 10 µg/L
worst single sample: 3.1 µg/L | 2/10 | SYR4 | 2013–2019 |
| Di(2-ethylhexyl) Phthalate | 1.99 µg/L 33% of the EPA limit 6 µg/L
worst single sample: 2 µg/L | 2/16 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 8.025 pCi/L No EPA limit set
worst single sample: 8.1 pCi/L | 2/2 | SYR4 | 2017 |
| Simazine | 0.0795 µg/L 2% of the EPA limit 4 µg/L
worst single sample: 0.0800 µg/L | 2/16 | 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 DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about City of Corpus Christi
Is City of Corpus Christi tap water safe to drink?
EPA monitoring detected 29 contaminants in City of Corpus Christi'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 City of Corpus Christi's water?
EPA monitoring detected Chloroform, Bromodichloromethane, Dibromochloromethane, TTHM, Dibromoacetic Acid, and others. The full list with the level and data source for each is above.
How many people does City of Corpus Christi serve?
City of Corpus Christi reports serving 318,387 people in Texas, per its EPA record.
Has City of Corpus Christi had any water quality violations?
The EPA has 58 violations on file for City of Corpus Christi, of which 43 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.