What was found in Trinity's water
The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 8540 µg/L 85% of the EPA limit 10000 µg/L | 4/6 | SYR4 |
| Copper | 3130 µg/L 241% of the EPA limit, in the worst sample — 1300 µg/L | 6/6 | SYR4 |
| Nitrate-Nitrite | 882 µg/L 8.8% of the EPA limit 10000 µg/L | 3/6 | SYR4 |
| Fluoride | 516 µg/L 13% of the EPA limit 4000 µg/L | 4/6 | SYR4 |
| TTHM | 184 µg/L 230% of the EPA limit, in the worst sample — 80 µg/L | 6/6 | SYR4 |
| Barium | 140 µg/L 7% of the EPA limit 2000 µg/L | 4/6 | SYR4 |
| Total Haloacetic Acids (HAA5) | 139 µg/L 232% of the EPA limit, in the worst sample — 60 µg/L | 6/6 | SYR4 |
| Chloroform | 116 µg/L No EPA limit set | 6/6 | SYR4 |
| Nitrite | 93 µg/L 9.3% of the EPA limit 1000 µg/L | 1/6 | SYR4 |
| Xylenes, Total | 91.8 µg/L 0.9% of the EPA limit 10000 µg/L | 1/6 | SYR4 |
| Dichloroacetic Acid | 85.3 µg/L No EPA limit set | 6/6 | SYR4 |
| Bromodichloromethane | 71.3 µg/L No EPA limit set | 6/6 | SYR4 |
| Lead | 62.5 µg/L 417% of the EPA limit, in the worst sample — 15 µg/L | 6/6 | SYR4 |
| Bromoform | 60.6 µg/L No EPA limit set | 6/6 | SYR4 |
| Dibromochloromethane | 47.5 µg/L No EPA limit set | 6/6 | SYR4 |
| Trichloroacetic Acid | 46.8 µg/L No EPA limit set | 6/6 | SYR4 |
| Cyanide | 36.9 µg/L 18% of the EPA limit 200 µg/L | 3/6 | SYR4 |
| Monochloroacetic Acid | 28.9 µg/L No EPA limit set | 6/6 | SYR4 |
| Ethylbenzene | 19.2 µg/L 2.7% of the EPA limit 700 µg/L | 1/6 | SYR4 |
| Dibromoacetic Acid | 18 µg/L No EPA limit set | 6/6 | SYR4 |
| Gross Beta Particle Activity | 11.8 pCi/L No EPA limit set | 4/6 | SYR4 |
| Selenium | 5.76 µg/L 12% of the EPA limit 50 µg/L | 4/6 | SYR4 |
| Monobromoacetic Acid | 4.5 µg/L No EPA limit set | 6/6 | SYR4 |
| Chromium | 4.03 µg/L 4% of the EPA limit 100 µg/L | 4/6 | SYR4 |
| Combined Radium (-226 And -228) | 2.4 pCi/L 48% of the EPA limit 5 pCi/L | 3/6 | SYR4 |
| Arsenic | 1.8 µg/L 18% of the EPA limit 10 µg/L | 3/6 | SYR4 |
| Toluene | 0.8310 µg/L 0.1% of the EPA limit 1000 µg/L | 1/6 | SYR4 |
| Antimony, Total | 0.5430 µg/L 9.1% of the EPA limit 6 µg/L | 2/6 | SYR4 |
| Thallium, Total | 0.4080 µg/L 20% of the EPA limit 2 µg/L | 1/6 | SYR4 |
| Atrazine | 0.2800 µg/L 9.3% of the EPA limit 3 µg/L | 1/6 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.2390 µg/L 4% of the EPA limit 6 µg/L | 1/6 | SYR4 |
| Simazine | 0.2200 µg/L 5.5% of the EPA limit 4 µg/L | 1/6 | SYR4 |
| Endrin | 0.1630 µg/L 8.2% of the EPA limit 2 µg/L | 1/6 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 6/6 | LCR |
Water suppliers serving Trinity
| Supplier | Population served |
|---|---|
| CITY OF TRINITY | 4,619 |
| WESTWOOD SHORES MUD | 2,125 |
| TRINITY RURAL WSC 1 | 1,700 |
| GLENDALE WSC | 1,458 |
| TRINITY RURAL WSC 3 | 1,428 |
| TRINITY RURAL WSC 2 | 322 |
Frequently asked questions about Trinity tap water
Is Trinity tap water safe to drink?
EPA testing detected 34 contaminants in the water serving Trinity. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Trinity?
6 public water suppliers report drinking-water monitoring for Trinity, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Trinity's water?
The contaminants EPA monitoring detected in Trinity include Nitrate, Copper, Nitrate-Nitrite, Fluoride, TTHM. The full list, with the highest level found and the data source, is in the table above.
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.