What was found in Afton'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 | 1192.5 µg/L 30% of the EPA limit 4000 µg/L Main supplier: DELAWARE CO RWD #10 · 1,295 people · 2017
Highest in the city: 2760 µg/L — CARRIAGE HILLS · 160 people · 2017 | 3/5 | SYR4 |
| Copper | 387.6 µg/L 30% of the EPA limit 1300 µg/L Main supplier: DELAWARE CO RWD #10 · 1,295 people · 2018 | 4/5 | SYR4 |
| Nitrate-Nitrite | 280 µg/L 2.8% of the EPA limit 10000 µg/L Highest in the city: LEISURE SHORES WATER SYSTEM ASSN, INC · 150 people · 2019 | 1/5 | SYR4 |
| TTHM | 35.87 µg/L 45% of the EPA limit 80 µg/L Main supplier: DELAWARE CO RWD #10 · 1,295 people · 2019
Highest in the city: 114.308 µg/L — DELAWARE CO RWD # 7 · 400 people · 2019 | 2/5 | SYR4 |
| Total Haloacetic Acids (HAA5) | 21.66 µg/L 36% of the EPA limit 60 µg/L Main supplier: DELAWARE CO RWD #10 · 1,295 people · 2019
Highest in the city: 108.236 µg/L — DELAWARE CO RWD # 7 · 400 people · 2019 | 2/5 | SYR4 |
| Chloroform | 15.16 µg/L No EPA limit set Main supplier: DELAWARE CO RWD #10 · 1,295 people · 2019
Highest in the city: 95.404 µg/L — DELAWARE CO RWD # 7 · 400 people · 2019 | 2/5 | SYR4 |
| Barium | 92.95 µg/L 4.6% of the EPA limit 2000 µg/L Main supplier: DELAWARE CO RWD #10 · 1,295 people · 2017
Highest in the city: 93.63 µg/L — LEISURE SHORES WATER SYSTEM ASSN, INC · 150 people · 2018 | 3/5 | SYR4 |
| Dichloroacetic Acid | 11.04 µg/L No EPA limit set Main supplier: DELAWARE CO RWD #10 · 1,295 people · 2019
Highest in the city: 48.904 µg/L — DELAWARE CO RWD # 7 · 400 people · 2019 | 2/5 | SYR4 |
| Trichloroacetic Acid | 8.19 µg/L No EPA limit set Main supplier: DELAWARE CO RWD #10 · 1,295 people · 2019
Highest in the city: 47.002 µg/L — DELAWARE CO RWD # 7 · 400 people · 2019 | 2/5 | SYR4 |
| Bromodichloromethane | 5.72 µg/L No EPA limit set Main supplier: DELAWARE CO RWD #10 · 1,295 people · 2019
Highest in the city: 20.58 µg/L — DELAWARE CO RWD # 7 · 400 people · 2019 | 2/5 | SYR4 |
| Monochloroacetic Acid | 13.063 µg/L No EPA limit set Highest in the city: DELAWARE CO RWD # 7 · 400 people · 2019 | 1/5 | SYR4 |
| Bromoform | 12.4 µg/L No EPA limit set Main supplier: DELAWARE CO RWD #10 · 1,295 people · 2019 | 1/5 | SYR4 |
| Gross Alpha, Excl. Radon And U | 9.973 pCi/L 66% of the EPA limit 15 pCi/L Main supplier: DELAWARE CO RWD #10 · 1,295 people · 2017 | 2/5 | SYR4 |
| Chromium | 9.1 µg/L 9.1% of the EPA limit 100 µg/L Highest in the city: LEISURE SHORES WATER SYSTEM ASSN, INC · 150 people · 2018 | 1/5 | SYR4 |
| Lead | 9 µg/L 60% of the EPA limit 15 µg/L Highest in the city: LEISURE SHORES WATER SYSTEM ASSN, INC · 150 people · 2018 | 1/5 | SYR4 |
| Dibromochloromethane | 7.175 µg/L No EPA limit set Main supplier: DELAWARE CO RWD #10 · 1,295 people · 2019 | 2/5 | SYR4 |
| Gross Beta Particle Activity | 6.7895 pCi/L No EPA limit set Main supplier: DELAWARE CO RWD #10 · 1,295 people · 2017 | 3/5 | SYR4 |
| Dibromoacetic Acid | 3.92 µg/L No EPA limit set Main supplier: DELAWARE CO RWD #10 · 1,295 people · 2019 | 1/5 | SYR4 |
| Combined Radium (-226 And -228) | 3.015 pCi/L 60% of the EPA limit 5 pCi/L Main supplier: DELAWARE CO RWD #10 · 1,295 people · 2017 | 3/5 | SYR4 |
| Lead | 0.0012 mg/L 8% of the EPA limit 0.0150 mg/L Main supplier: DELAWARE CO RWD #10 · 1,295 people · 2027
Highest in the city: 0.0031 mg/L — OAK RIDGE ESTATES I & II WATER ASSOC. · 62 people · 2023 | 5/5 | 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 Afton
| Supplier | Population served |
|---|---|
| DELAWARE CO RWD #10 | 1,295 |
| DELAWARE CO RWD # 7 | 400 |
| CARRIAGE HILLS | 160 |
| LEISURE SHORES WATER SYSTEM ASSN, INC | 150 |
| OAK RIDGE ESTATES I & II WATER ASSOC. | 62 |
Frequently asked questions about Afton tap water
Is Afton tap water safe to drink?
EPA testing detected 20 contaminants in the water serving Afton. 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 Afton?
5 public water suppliers report drinking-water monitoring for Afton, Oklahoma to the EPA. Each is listed above with its population served.
What contaminants are in Afton's water?
The contaminants EPA monitoring detected in Afton include Fluoride, Copper, Nitrate-Nitrite, TTHM, 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.