What was found in Richardson'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 | 785.27 µg/L 60% of the EPA limit 1300 µg/L Main supplier: CITY OF RICHARDSON · 122,615 people · 2017 | 1/1 | SYR4 |
| TTHM | 53.4 µg/L 67% of the EPA limit 80 µg/L Main supplier: CITY OF RICHARDSON · 122,615 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 33.85 µg/L 56% of the EPA limit 60 µg/L Main supplier: CITY OF RICHARDSON · 122,615 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 22.45 µg/L No EPA limit set Main supplier: CITY OF RICHARDSON · 122,615 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 20.795 µg/L No EPA limit set Main supplier: CITY OF RICHARDSON · 122,615 people · 2019 | 1/1 | SYR4 |
| Chloroform | 20.65 µg/L No EPA limit set Main supplier: CITY OF RICHARDSON · 122,615 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 14.15 µg/L No EPA limit set Main supplier: CITY OF RICHARDSON · 122,615 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 9.7 µg/L No EPA limit set Main supplier: CITY OF RICHARDSON · 122,615 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 8.275 µg/L No EPA limit set Main supplier: CITY OF RICHARDSON · 122,615 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 7.25 µg/L No EPA limit set Main supplier: CITY OF RICHARDSON · 122,615 people · 2019 | 1/1 | SYR4 |
| Bromoform | 5.5 µg/L No EPA limit set Main supplier: CITY OF RICHARDSON · 122,615 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 5.235 µg/L No EPA limit set Main supplier: CITY OF RICHARDSON · 122,615 people · 2019 | 1/1 | SYR4 |
| Lead | 4.056 µg/L 27% of the EPA limit 15 µg/L Main supplier: CITY OF RICHARDSON · 122,615 people · 2017 | 1/1 | SYR4 |
| Pfba | 0.0098 µg/L No EPA limit set Main supplier: CITY OF RICHARDSON · 122,615 people · 2025 | 1/1 | UCMR-5 |
| Pfpea | 0.0082 µg/L No EPA limit set Main supplier: CITY OF RICHARDSON · 122,615 people · 2025 | 1/1 | UCMR-5 |
| Pfhxa | 0.0067 µg/L No EPA limit set Main supplier: CITY OF RICHARDSON · 122,615 people · 2025 | 1/1 | UCMR-5 |
| PFBS | 0.0052 µg/L No EPA limit set Main supplier: CITY OF RICHARDSON · 122,615 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0024 mg/L 16% of the EPA limit 0.0150 mg/L Main supplier: CITY OF RICHARDSON · 122,615 people · 2025 | 1/1 | LCR |
Water suppliers serving Richardson
| Supplier | Population served |
|---|---|
| CITY OF RICHARDSON | 122,615 |
Frequently asked questions about Richardson tap water
Is Richardson tap water safe to drink?
EPA testing detected 18 contaminants in the water serving Richardson. 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 Richardson?
1 public water supplier report drinking-water monitoring for Richardson, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Richardson's water?
The contaminants EPA monitoring detected in Richardson include Copper, TTHM, Total Haloacetic Acids (HAA5), Bromodichloromethane, 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.