What was found in Laredo'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 |
|---|---|---|---|
| Copper | 1670 µg/L 128% of the EPA limit, in the worst sample — 1300 µg/L | 3/4 | SYR4 |
| Nitrate | 1100 µg/L 11% of the EPA limit 10000 µg/L | 3/4 | SYR4 |
| Fluoride | 770 µg/L 19% of the EPA limit 4000 µg/L | 2/4 | SYR4 |
| TTHM | 147 µg/L 184% of the EPA limit, in the worst sample — 80 µg/L | 3/4 | SYR4 |
| Cyanide | 140 µg/L 70% of the EPA limit 200 µg/L | 2/4 | SYR4 |
| Barium | 106 µg/L 5.3% of the EPA limit 2000 µg/L | 2/4 | SYR4 |
| Nitrate-Nitrite | 90 µg/L 0.9% of the EPA limit 10000 µg/L | 1/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 88.7 µg/L 148% of the EPA limit, in the worst sample — 60 µg/L | 3/4 | SYR4 |
| Chloroform | 50.1 µg/L No EPA limit set | 3/4 | SYR4 |
| Bromodichloromethane | 48.6 µg/L No EPA limit set | 3/4 | SYR4 |
| Dibromochloromethane | 46.7 µg/L No EPA limit set | 3/4 | SYR4 |
| Dichloroacetic Acid | 43.7 µg/L No EPA limit set | 3/4 | SYR4 |
| Lithium | 40.7 µg/L No EPA limit set | 2/4 | UCMR-5 |
| Bromoform | 29.8 µg/L No EPA limit set | 3/4 | SYR4 |
| Trichloroacetic Acid | 22.8 µg/L No EPA limit set | 3/4 | SYR4 |
| Dibromoacetic Acid | 20.6 µg/L No EPA limit set | 3/4 | SYR4 |
| Lead | 16.1 µg/L 107% of the EPA limit, in the worst sample — 15 µg/L | 3/4 | SYR4 |
| Monobromoacetic Acid | 15.2 µg/L No EPA limit set | 3/4 | SYR4 |
| Nitrite | 10 µg/L 1% of the EPA limit 1000 µg/L | 1/4 | SYR4 |
| Monochloroacetic Acid | 8.2 µg/L No EPA limit set | 3/4 | SYR4 |
| Gross Beta Particle Activity | 6.4 pCi/L No EPA limit set | 2/4 | SYR4 |
| Selenium | 4.2 µg/L 8.4% of the EPA limit 50 µg/L | 2/4 | SYR4 |
| Arsenic | 4.1 µg/L 41% of the EPA limit 10 µg/L | 1/4 | SYR4 |
| Combined Uranium | 3.5 µg/L 12% of the EPA limit 30 µg/L | 1/4 | SYR4 |
| Dalapon | 2.2 µg/L 1.1% of the EPA limit 200 µg/L | 2/4 | SYR4 |
| Antimony, Total | 2.1 µg/L 35% of the EPA limit 6 µg/L | 1/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2 pCi/L 13% of the EPA limit 15 pCi/L | 1/4 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.4 µg/L 23% of the EPA limit 6 µg/L | 1/4 | SYR4 |
| Atrazine | 0.1000 µg/L 3.3% of the EPA limit 3 µg/L | 1/4 | SYR4 |
| Pfba | 0.0106 µg/L No EPA limit set | 2/4 | UCMR-5 |
| Pfpea | 0.0034 µg/L No EPA limit set | 1/4 | UCMR-5 |
| Lead | 0.0014 mg/L 9.1% of the EPA limit 0.0150 mg/L | 3/4 | LCR |
Water suppliers serving Laredo
| Supplier | Population served |
|---|---|
| CITY OF LAREDO | 260,046 |
| WEBB COUNTY WATER UTILITIES | 8,358 |
| WEBB COUNTY WATER DISPENSER | 3,362 |
| LOS BOTINES WSC | 54 |
Frequently asked questions about Laredo tap water
Is Laredo tap water safe to drink?
EPA testing detected 32 contaminants in the water serving Laredo. 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 Laredo?
4 public water suppliers report drinking-water monitoring for Laredo, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Laredo's water?
The contaminants EPA monitoring detected in Laredo include Copper, Nitrate, Fluoride, TTHM, Cyanide. 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.