What was found in Denton'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 | 1446 µg/L 36% of the EPA limit 4000 µg/L Main supplier: TOWN OF DENTON · 4,500 people · 2019 | 2/3 | SYR4 |
| TTHM | 32.654 µg/L 41% of the EPA limit 80 µg/L Main supplier: TOWN OF DENTON · 4,500 people · 2019 | 2/3 | SYR4 |
| Chloroform | 26.52 µg/L No EPA limit set Main supplier: TOWN OF DENTON · 4,500 people · 2019 | 2/3 | SYR4 |
| Lithium | 20 µg/L No EPA limit set Main supplier: TOWN OF DENTON · 4,500 people · 2025 | 1/3 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 15.312 µg/L 26% of the EPA limit 60 µg/L Main supplier: TOWN OF DENTON · 4,500 people · 2019 | 1/3 | SYR4 |
| Chromium | 14.375 µg/L 14% of the EPA limit 100 µg/L Main supplier: TOWN OF DENTON · 4,500 people · 2019 | 1/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 10.56 pCi/L 70% of the EPA limit 15 pCi/L Main supplier: TOWN OF DENTON · 4,500 people · 2019 | 2/3 | SYR4 |
| Gross Beta Particle Activity | 7.78 pCi/L No EPA limit set Main supplier: TOWN OF DENTON · 4,500 people · 2015
Highest in the city: 9.5 pCi/L — JONESTOWN WATER SYSTEM · 150 people · 2012 | 3/3 | SYR4 |
| Dichloroacetic Acid | 6.64 µg/L No EPA limit set Main supplier: TOWN OF DENTON · 4,500 people · 2015 | 1/3 | SYR4 |
| Trichloroacetic Acid | 6.22 µg/L No EPA limit set Main supplier: TOWN OF DENTON · 4,500 people · 2015 | 1/3 | SYR4 |
| Arsenic | 4.74 µg/L 47% of the EPA limit 10 µg/L Main supplier: TOWN OF DENTON · 4,500 people · 2019
Highest in the city: 5.9 µg/L — TOWER COURT MOBILE HOME PARK · 40 people · 2019 | 2/3 | SYR4 |
| Bromodichloromethane | 4.795 µg/L No EPA limit set Main supplier: TOWN OF DENTON · 4,500 people · 2017 | 2/3 | SYR4 |
| Selenium | 2.6 µg/L 5.2% of the EPA limit 50 µg/L Main supplier: TOWN OF DENTON · 4,500 people · 2019 | 1/3 | SYR4 |
| Dibromochloromethane | 0.8985 µg/L No EPA limit set Main supplier: TOWN OF DENTON · 4,500 people · 2017
Highest in the city: 0.9800 µg/L — JONESTOWN WATER SYSTEM · 150 people · 2015 | 2/3 | SYR4 |
| Combined Radium (-226 And -228) | 0.7400 pCi/L 15% of the EPA limit 5 pCi/L Main supplier: TOWN OF DENTON · 4,500 people · 2015 | 2/3 | SYR4 |
| Barium | 0.1200 µg/L 0% of the EPA limit 2000 µg/L Main supplier: TOWN OF DENTON · 4,500 people · 2019 | 1/3 | SYR4 |
| Thallium, Total | 0.0300 µg/L 1.5% of the EPA limit 2 µg/L Main supplier: TOWN OF DENTON · 4,500 people · 2019 | 1/3 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: TOWN OF DENTON · 4,500 people · 2023 | 3/3 | LCR |
Water suppliers serving Denton
| Supplier | Population served |
|---|---|
| TOWN OF DENTON | 4,500 |
| JONESTOWN WATER SYSTEM | 150 |
| TOWER COURT MOBILE HOME PARK | 40 |
Frequently asked questions about Denton tap water
Is Denton tap water safe to drink?
EPA testing detected 18 contaminants in the water serving Denton. 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 Denton?
3 public water suppliers report drinking-water monitoring for Denton, Maryland to the EPA. Each is listed above with its population served.
What contaminants are in Denton's water?
The contaminants EPA monitoring detected in Denton include Fluoride, TTHM, Chloroform, Lithium, Total Haloacetic Acids (HAA5). 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.