What was found in Carrollton's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Copper | 486 µg/L 37% of the EPA limit 1300 µg/L Main supplier: CITY OF CARROLLTON · 136,170 people · 2019 | 1/1 | SYR4 |
| TTHM | 50.4 µg/L 63% of the EPA limit 80 µg/L Main supplier: CITY OF CARROLLTON · 136,170 people · 2019 | 1/1 | SYR4 |
| Chloroform | 35.925 µg/L No EPA limit set Main supplier: CITY OF CARROLLTON · 136,170 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 26.26 µg/L 44% of the EPA limit 60 µg/L Main supplier: CITY OF CARROLLTON · 136,170 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 21.5 µg/L No EPA limit set Main supplier: CITY OF CARROLLTON · 136,170 people · 2019 | 1/1 | SYR4 |
| Lead | 15.575 µg/L 104% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: CITY OF CARROLLTON · 136,170 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 10.46 µg/L No EPA limit set Main supplier: CITY OF CARROLLTON · 136,170 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 5.975 µg/L No EPA limit set Main supplier: CITY OF CARROLLTON · 136,170 people · 2019 | 1/1 | SYR4 |
| Bromoform | 5.06 µg/L No EPA limit set Main supplier: CITY OF CARROLLTON · 136,170 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 4.997 µg/L No EPA limit set Main supplier: CITY OF CARROLLTON · 136,170 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 3.5 µg/L No EPA limit set Main supplier: CITY OF CARROLLTON · 136,170 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 2.78 µg/L No EPA limit set Main supplier: CITY OF CARROLLTON · 136,170 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.4 µg/L No EPA limit set Main supplier: CITY OF CARROLLTON · 136,170 people · 2019 | 1/1 | SYR4 |
| Pfba | 0.0088 µg/L No EPA limit set Main supplier: CITY OF CARROLLTON · 136,170 people · 2025 | 1/1 | UCMR-5 |
| Pfhxa | 0.0053 µg/L No EPA limit set Main supplier: CITY OF CARROLLTON · 136,170 people · 2025 | 1/1 | UCMR-5 |
| Pfpea | 0.0052 µg/L No EPA limit set Main supplier: CITY OF CARROLLTON · 136,170 people · 2025 | 1/1 | UCMR-5 |
| PFBS | 0.0031 µg/L No EPA limit set Main supplier: CITY OF CARROLLTON · 136,170 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF CARROLLTON · 136,170 people · 2025 | 1/1 | LCR |
Water suppliers serving Carrollton
| Supplier | Population served |
|---|---|
| CITY OF CARROLLTON | 136,170 |
Frequently asked questions about Carrollton tap water
Is Carrollton tap water safe to drink?
EPA testing detected 18 contaminants in the water serving Carrollton. 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 Carrollton?
1 public water supplier report drinking-water monitoring for Carrollton, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Carrollton's water?
The contaminants EPA monitoring detected in Carrollton include Copper, TTHM, Chloroform, Total Haloacetic Acids (HAA5), Dichloroacetic Acid. The full list, with the level at the main supplier 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.