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.
87
health-based violations
160
violations on file
2
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 2024-01-01 → 2024-03-31 |
| MCL | Health-based | Resolved | 2024-01-01 → 2024-03-31 |
| MCL | Health-based | Resolved | 2024-01-01 → 2024-03-31 |
| MCL | Health-based | Resolved | 2024-01-01 → 2024-03-31 |
| MCL | Health-based | Resolved | 2023-10-01 → 2023-12-31 |
| MCL | Health-based | Resolved | 2023-10-01 → 2023-12-31 |
| MCL | Health-based | Resolved | 2023-10-01 → 2023-12-31 |
| MCL | Health-based | Resolved | 2023-10-01 → 2023-12-31 |
| MCL | Health-based | Resolved | 2023-07-01 → 2023-09-30 |
| MCL | Health-based | Resolved | 2023-07-01 → 2023-09-30 |
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 |
|---|---|---|---|---|
| Bromodichloromethane | 28.23 µg/L No EPA limit set
worst single sample: 38.2 µg/L | 40/40 | SYR4 | 2012–2019 |
| Chloroform | 101.5 µg/L No EPA limit set
worst single sample: 166 µg/L | 40/40 | SYR4 | 2012–2019 |
| Dibromochloromethane | 9.925 µg/L No EPA limit set
worst single sample: 17.3 µg/L | 36/40 | SYR4 | 2012–2019 |
| TTHM | 130.5 µg/L 163% of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 218 µg/L | 29/30 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 69.94 µg/L 117% of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 120 µg/L | 23/29 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 38.36 µg/L No EPA limit set
worst single sample: 71.7 µg/L | 22/29 | SYR4 | 2012–2019 |
| Copper | 104 µg/L 8% of the EPA limit 1300 µg/L
worst single sample: 261 µg/L | 21/36 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 31.58 µg/L No EPA limit set
worst single sample: 46.4 µg/L | 20/29 | SYR4 | 2012–2019 |
| Nitrate | 577 µg/L 5.8% of the EPA limit 10000 µg/L | 18/18 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 8.54 µg/L No EPA limit set
worst single sample: 10.7 µg/L | 9/29 | SYR4 | 2012–2019 |
| Barium | 85.76 µg/L 4.3% of the EPA limit 2000 µg/L
worst single sample: 85.9 µg/L | 8/8 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 3.6 µg/L No EPA limit set
worst single sample: 4.3 µg/L | 8/29 | SYR4 | 2012–2019 |
| Fluoride | 116.85 µg/L 2.9% of the EPA limit 4000 µg/L
worst single sample: 120 µg/L | 8/8 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 7/7 | LCR | 2022 |
| Bromoform | 2.225 µg/L No EPA limit set
worst single sample: 2.5 µg/L | 6/40 | SYR4 | 2012–2019 |
| Cyanide | 79.035 µg/L 40% of the EPA limit 200 µg/L
worst single sample: 83.7 µg/L | 4/6 | SYR4 | 2014–2019 |
| Monobromoacetic Acid | 5.68 µg/L No EPA limit set
worst single sample: 6.4 µg/L | 4/29 | SYR4 | 2012–2019 |
| Arsenic | 1.151 µg/L 12% of the EPA limit 10 µg/L
worst single sample: 1.2 µg/L | 3/8 | SYR4 | 2012–2019 |
| Chromium | 1.225 µg/L 1.2% of the EPA limit 100 µg/L
worst single sample: 1.28 µg/L | 3/8 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 1.475 pCi/L 30% of the EPA limit 5 pCi/L
worst single sample: 1.5 pCi/L | 2/2 | SYR4 | 2012–2018 |
| Lead | 2.07725 µg/L 14% of the EPA limit 15 µg/L
worst single sample: 2.17 µg/L | 2/36 | SYR4 | 2012–2019 |
| Antimony, Total | 0.3130 µg/L 5.2% of the EPA limit 6 µg/L | 1/8 | SYR4 | 2012–2019 |
| Carbon Tetrachloride | 0.6700 µg/L 13% of the EPA limit 5 µg/L | 1/11 | SYR4 | 2012–2019 |
| Nitrite | 126 µg/L 13% of the EPA limit 1000 µg/L | 1/1 | SYR4 | 2013 |
| Thallium, Total | 0.2110 µg/L 11% of the EPA limit 2 µg/L | 1/8 | 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-PF3ONSAdonaAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranChlordaneCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about City of Trinidad
Is City of Trinidad tap water safe to drink?
EPA monitoring detected 29 contaminants in City of Trinidad'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 Trinidad's water?
EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.
How many people does City of Trinidad serve?
City of Trinidad reports serving 1,482 people in Texas, per its EPA record.
Has City of Trinidad had any water quality violations?
The EPA has 160 violations on file for City of Trinidad, of which 87 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.