What was found in Arlington'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 |
|---|---|---|---|
| Fluoride | 727.5 µg/L 18% of the EPA limit 4000 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2019 | 2/2 | SYR4 |
| Nitrate | 627.4 µg/L 6.3% of the EPA limit 10000 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 470 µg/L 4.7% of the EPA limit 10000 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2012 | 1/2 | SYR4 |
| Copper | 211.4 µg/L 16% of the EPA limit 1300 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2018 | 2/2 | SYR4 |
| Cyanide | 103.825 µg/L 52% of the EPA limit 200 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2019
Highest in the city: 105.875 µg/L — TRA TARRANT COUNTY WATER PROJECT · 0 people · 2019 | 2/2 | SYR4 |
| Barium | 59.3 µg/L 3% of the EPA limit 2000 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2019 | 2/2 | SYR4 |
| TTHM | 22.17 µg/L 28% of the EPA limit 80 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2019
Highest in the city: 53.195 µg/L — TRA TARRANT COUNTY WATER PROJECT · 0 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 16.8 µg/L 28% of the EPA limit 60 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2019
Highest in the city: 26.415 µg/L — TRA TARRANT COUNTY WATER PROJECT · 0 people · 2019 | 2/2 | SYR4 |
| Chloroform | 10.9 µg/L No EPA limit set Main supplier: CITY OF ARLINGTON · 413,955 people · 2019
Highest in the city: 20.26 µg/L — TRA TARRANT COUNTY WATER PROJECT · 0 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 6.9895 µg/L No EPA limit set Main supplier: CITY OF ARLINGTON · 413,955 people · 2019
Highest in the city: 19.78 µg/L — TRA TARRANT COUNTY WATER PROJECT · 0 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 6.895 µg/L No EPA limit set Main supplier: CITY OF ARLINGTON · 413,955 people · 2019
Highest in the city: 16.405 µg/L — TRA TARRANT COUNTY WATER PROJECT · 0 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 15.75 µg/L No EPA limit set Main supplier: CITY OF ARLINGTON · 413,955 people · 2019 | 2/2 | SYR4 |
| Bromate | 10.456 µg/L 105% of the EPA limit, at the 95th percentile of samples — 10 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2019
Highest in the city: 10.916 µg/L — TRA TARRANT COUNTY WATER PROJECT · 0 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 6.446 µg/L No EPA limit set Main supplier: CITY OF ARLINGTON · 413,955 people · 2019
Highest in the city: 8.264 µg/L — TRA TARRANT COUNTY WATER PROJECT · 0 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 1.9 µg/L No EPA limit set Main supplier: CITY OF ARLINGTON · 413,955 people · 2019
Highest in the city: 6.77 µg/L — TRA TARRANT COUNTY WATER PROJECT · 0 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 5.49 µg/L No EPA limit set Main supplier: CITY OF ARLINGTON · 413,955 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 4.785 pCi/L No EPA limit set Main supplier: CITY OF ARLINGTON · 413,955 people · 2018
Highest in the city: 5.2 pCi/L — TRA TARRANT COUNTY WATER PROJECT · 0 people · 2017 | 2/2 | SYR4 |
| Lead | 4.885 µg/L 33% of the EPA limit 15 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2018 | 1/2 | SYR4 |
| Bromoform | 3.282 µg/L No EPA limit set Main supplier: CITY OF ARLINGTON · 413,955 people · 2019
Highest in the city: 4.3 µg/L — TRA TARRANT COUNTY WATER PROJECT · 0 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 3.5 µg/L No EPA limit set Main supplier: CITY OF ARLINGTON · 413,955 people · 2019 | 2/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 3.1255 µg/L 52% of the EPA limit 6 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2019 | 1/2 | SYR4 |
| Selenium | 2.4445 µg/L 4.9% of the EPA limit 50 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2019 | 2/2 | SYR4 |
| Arsenic | 1.924 µg/L 19% of the EPA limit 10 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2019 | 2/2 | SYR4 |
| Chromium | 1.5165 µg/L 1.5% of the EPA limit 100 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2019 | 2/2 | SYR4 |
| Antimony, Total | 0.4248 µg/L 7.1% of the EPA limit 6 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2019 | 2/2 | SYR4 |
| Atrazine | 0.3880 µg/L 13% of the EPA limit 3 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2019 | 2/2 | SYR4 |
| Simazine | 0.1350 µg/L 3.4% of the EPA limit 4 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2019 | 2/2 | SYR4 |
| Thallium, Total | 0.0170 µg/L 0.9% of the EPA limit 2 µg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2019 | 1/2 | SYR4 |
| Pfba | 0.0080 µg/L No EPA limit set Main supplier: CITY OF ARLINGTON · 413,955 people · 2024 | 1/2 | UCMR-5 |
| Pfpea | 0.0065 µg/L No EPA limit set Main supplier: CITY OF ARLINGTON · 413,955 people · 2024 | 1/2 | UCMR-5 |
| PFBS | 0.0059 µg/L No EPA limit set Main supplier: CITY OF ARLINGTON · 413,955 people · 2024 | 1/2 | UCMR-5 |
| Pfhxa | 0.0050 µg/L No EPA limit set Main supplier: CITY OF ARLINGTON · 413,955 people · 2024 | 1/2 | UCMR-5 |
| PFOS | 0.0046 µg/L No EPA limit set Main supplier: CITY OF ARLINGTON · 413,955 people · 2024 | 1/2 | UCMR-5 |
| Lead | 0.0010 mg/L 6.8% of the EPA limit 0.0150 mg/L Main supplier: CITY OF ARLINGTON · 413,955 people · 2023 | 1/2 | LCR |
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 Arlington
| Supplier | Population served |
|---|---|
| CITY OF ARLINGTON | 413,955 |
| TRA TARRANT COUNTY WATER PROJECT | 0 |
Frequently asked questions about Arlington tap water
Is Arlington tap water safe to drink?
EPA testing detected 34 contaminants in the water serving Arlington. 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 Arlington?
2 public water suppliers report drinking-water monitoring for Arlington, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Arlington's water?
The contaminants EPA monitoring detected in Arlington include Fluoride, Nitrate, Nitrate-Nitrite, Copper, Cyanide. 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.