What was found in Dallas'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 |
|---|---|---|---|
| Nitrate | 124 µg/L 1.2% of the EPA limit 10000 µg/L Main supplier: SCI DALLAS · 2,900 people · 2019
Highest in the city: 3310 µg/L — ORCHARD WEST WATER ASSOC · 90 people · 2019 | 7/7 | SYR4 |
| Lead | 1273.22 µg/L 8488% of the EPA limit, at the 95th percentile of samples — 15 µg/L Highest in the city: EEI MEADOWS COMPLEX · 628 people · 2019 | 5/7 | SYR4 |
| Copper | 260.7 µg/L 20% of the EPA limit 1300 µg/L Main supplier: SCI DALLAS · 2,900 people · 2019
Highest in the city: 854.4 µg/L — KADIMA AT LAKESIDE · 91 people · 2019 | 7/7 | SYR4 |
| Fluoride | 622.8 µg/L 16% of the EPA limit 4000 µg/L Main supplier: SCI DALLAS · 2,900 people · 2018 | 1/7 | SYR4 |
| Barium | 212 µg/L 11% of the EPA limit 2000 µg/L Main supplier: SCI DALLAS · 2,900 people · 2018
Highest in the city: 318 µg/L — EEI MEADOWS COMPLEX · 628 people · 2012 | 7/7 | SYR4 |
| TTHM | 56.42 µg/L 71% of the EPA limit 80 µg/L Main supplier: SCI DALLAS · 2,900 people · 2019 | 4/7 | SYR4 |
| Chloroform | 47.58 µg/L No EPA limit set Main supplier: SCI DALLAS · 2,900 people · 2019 | 3/7 | SYR4 |
| Total Haloacetic Acids (HAA5) | 30.62 µg/L 51% of the EPA limit 60 µg/L Main supplier: SCI DALLAS · 2,900 people · 2019 | 6/7 | SYR4 |
| Lithium | 24.6 µg/L No EPA limit set Highest in the city: EEI MEADOWS COMPLEX · 628 people · 2023 | 1/7 | UCMR-5 |
| Dichloroacetic Acid | 13.3 µg/L No EPA limit set Main supplier: SCI DALLAS · 2,900 people · 2019 | 2/7 | SYR4 |
| Trichloroacetic Acid | 12.23 µg/L No EPA limit set Main supplier: SCI DALLAS · 2,900 people · 2019 | 1/7 | SYR4 |
| Bromodichloromethane | 8.926 µg/L No EPA limit set Main supplier: SCI DALLAS · 2,900 people · 2019 | 3/7 | SYR4 |
| Bromoform | 0.7090 µg/L No EPA limit set Main supplier: SCI DALLAS · 2,900 people · 2019
Highest in the city: 8.48 µg/L — EEI MEADOWS COMPLEX · 628 people · 2019 | 4/7 | SYR4 |
| Dibromochloromethane | 1.89 µg/L No EPA limit set Main supplier: SCI DALLAS · 2,900 people · 2019
Highest in the city: 6.36 µg/L — EEI MEADOWS COMPLEX · 628 people · 2019 | 4/7 | SYR4 |
| Chromium | 4.975 µg/L 5% of the EPA limit 100 µg/L Main supplier: SCI DALLAS · 2,900 people · 2018 | 1/7 | SYR4 |
| Dibromoacetic Acid | 1.13 µg/L No EPA limit set Main supplier: SCI DALLAS · 2,900 people · 2019
Highest in the city: 3.3 µg/L — KADIMA AT LAKESIDE · 91 people · 2019 | 2/7 | SYR4 |
| Monobromoacetic Acid | 2.68 µg/L No EPA limit set Highest in the city: ORCHARD WEST WATER ASSOC · 90 people · 2019 | 2/7 | SYR4 |
| Combined Uranium | 2.22725 µg/L 7.4% of the EPA limit 30 µg/L Highest in the city: EEI MEADOWS COMPLEX · 628 people · 2019 | 3/7 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.97 µg/L 33% of the EPA limit 6 µg/L Highest in the city: KADIMA AT LAKESIDE · 91 people · 2019 | 2/7 | SYR4 |
| Lead | 0.0050 mg/L 33% of the EPA limit 0.0150 mg/L Main supplier: SCI DALLAS · 2,900 people · 1996
Highest in the city: 0.6723 mg/L — EEI MEADOWS COMPLEX · 628 people · 2019 | 6/7 | LCR |
| PFOS | 0.0059 µg/L No EPA limit set Highest in the city: EEI MEADOWS COMPLEX · 628 people · 2023 | 1/7 | UCMR-5 |
| PFBS | 0.0039 µg/L No EPA limit set Highest in the city: EEI MEADOWS COMPLEX · 628 people · 2023 | 1/7 | UCMR-5 |
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 the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Dallas
| Supplier | Population served |
|---|---|
| SCI DALLAS | 2,900 |
| EEI MEADOWS COMPLEX | 628 |
| COUNTRY VILLAGE MHP | 175 |
| KADIMA AT LAKESIDE | 91 |
| ORCHARD WEST WATER ASSOC | 90 |
| ORCHARD EAST WATER ASSOC | 85 |
| HILLSIDE CONDOMINIUMS | 65 |
Frequently asked questions about Dallas tap water
Is Dallas tap water safe to drink?
EPA testing detected 22 contaminants in the water serving Dallas. 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 Dallas?
7 public water suppliers report drinking-water monitoring for Dallas, Pennsylvania to the EPA. Each is listed above with its population served.
What contaminants are in Dallas's water?
The contaminants EPA monitoring detected in Dallas include Nitrate, Lead, Copper, Fluoride, Barium. 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.