What was found in Decatur'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 | 226.95 µg/L 5.7% of the EPA limit 4000 µg/L Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019
Highest in the city: 274 µg/L — WILDWOOD NATURISTS RESORT WATER SYSTEM · 225 people · 2018 | 2/3 | SYR4 |
| Nitrate | 248 µg/L 2.5% of the EPA limit 10000 µg/L Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019 | 2/3 | SYR4 |
| Copper | 111.15 µg/L 8.6% of the EPA limit 1300 µg/L Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019
Highest in the city: 136 µg/L — WILDWOOD NATURISTS RESORT WATER SYSTEM · 225 people · 2018 | 2/3 | SYR4 |
| TTHM | 113 µg/L 141% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019 | 2/3 | SYR4 |
| Cyanide | 111.72 µg/L 56% of the EPA limit 200 µg/L Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019 | 1/3 | SYR4 |
| Chloroform | 78.72 µg/L No EPA limit set Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019 | 2/3 | SYR4 |
| Barium | 69.67 µg/L 3.5% of the EPA limit 2000 µg/L Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019 | 2/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 67.76 µg/L 113% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019 | 2/3 | SYR4 |
| Dichloroacetic Acid | 33.38 µg/L No EPA limit set Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019 | 2/3 | SYR4 |
| Trichloroacetic Acid | 33.2 µg/L No EPA limit set Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019 | 1/3 | SYR4 |
| Bromodichloromethane | 27.825 µg/L No EPA limit set Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019 | 2/3 | SYR4 |
| Dibromochloromethane | 17.93 µg/L No EPA limit set Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019 | 2/3 | SYR4 |
| Monochloroacetic Acid | 15.1 µg/L No EPA limit set Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019 | 2/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 13 pCi/L 87% of the EPA limit 15 pCi/L Highest in the city: WILDWOOD NATURISTS RESORT WATER SYSTEM · 225 people · 2018 | 1/3 | SYR4 |
| Bromoform | 4.275 µg/L No EPA limit set Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019
Highest in the city: 11.6 µg/L — WILDWOOD NATURISTS RESORT WATER SYSTEM · 225 people · 2019 | 2/3 | SYR4 |
| Gross Beta Particle Activity | 4.7 pCi/L No EPA limit set Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2016
Highest in the city: 9.9 pCi/L — WILDWOOD NATURISTS RESORT WATER SYSTEM · 225 people · 2018 | 2/3 | SYR4 |
| Lead | 5.6325 µg/L 38% of the EPA limit 15 µg/L Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019
Highest in the city: 7.94 µg/L — WILDWOOD NATURISTS RESORT WATER SYSTEM · 225 people · 2018 | 2/3 | SYR4 |
| Dibromoacetic Acid | 5.69 µg/L No EPA limit set Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019 | 2/3 | SYR4 |
| Combined Radium (-226 And -228) | 1.5 pCi/L 30% of the EPA limit 5 pCi/L Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2016
Highest in the city: 3.7 pCi/L — WILDWOOD NATURISTS RESORT WATER SYSTEM · 225 people · 2018 | 2/3 | SYR4 |
| Combined Uranium | 3.5 µg/L 12% of the EPA limit 30 µg/L Highest in the city: WILDWOOD NATURISTS RESORT WATER SYSTEM · 225 people · 2018 | 1/3 | SYR4 |
| Chromium | 3.206 µg/L 3.2% of the EPA limit 100 µg/L Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019 | 2/3 | SYR4 |
| Monobromoacetic Acid | 2.43 µg/L No EPA limit set Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019 | 1/3 | SYR4 |
| Arsenic | 0.9815 µg/L 9.8% of the EPA limit 10 µg/L Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019 | 1/3 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.9000 µg/L 15% of the EPA limit 6 µg/L Highest in the city: WILDWOOD NATURISTS RESORT WATER SYSTEM · 225 people · 2019 | 1/3 | SYR4 |
| Carbon Tetrachloride | 0.7500 µg/L 15% of the EPA limit 5 µg/L Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019 | 1/3 | SYR4 |
| Antimony, Total | 0.2100 µg/L 3.5% of the EPA limit 6 µg/L Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2019 | 1/3 | SYR4 |
| Pfba | 0.0080 µg/L No EPA limit set Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2024 | 1/3 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF DECATUR WATER PLANT · 6,910 people · 2025
Highest in the city: 0.0015 mg/L — WILDWOOD NATURISTS RESORT WATER SYSTEM · 225 people · 2024 | 2/3 | 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 Decatur
| Supplier | Population served |
|---|---|
| CITY OF DECATUR WATER PLANT | 6,910 |
| WILDWOOD NATURISTS RESORT WATER SYSTEM | 225 |
| BRUSHY CREEK RV PARK | 48 |
Frequently asked questions about Decatur tap water
Is Decatur tap water safe to drink?
EPA testing detected 28 contaminants in the water serving Decatur. 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 Decatur?
3 public water suppliers report drinking-water monitoring for Decatur, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Decatur's water?
The contaminants EPA monitoring detected in Decatur include Fluoride, Nitrate, Copper, TTHM, 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.