What was found in Chickasha'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 | 1000 µg/L 25% of the EPA limit 4000 µg/L Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2019 | 1/2 | SYR4 |
| Nitrate-Nitrite | 870 µg/L 8.7% of the EPA limit 10000 µg/L Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2019 | 1/2 | SYR4 |
| Copper | 345.3 µg/L 27% of the EPA limit 1300 µg/L Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2018
Highest in the city: 351.45 µg/L — NORGE WATER AND SEWER CO., INC · 890 people · 2018 | 2/2 | SYR4 |
| TTHM | 129.575 µg/L 162% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2019
Highest in the city: 130.175 µg/L — NORGE WATER AND SEWER CO., INC · 890 people · 2019 | 2/2 | SYR4 |
| Barium | 119 µg/L 5.9% of the EPA limit 2000 µg/L Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2013 | 1/2 | SYR4 |
| Chloroform | 73.6 µg/L No EPA limit set Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 55.06 µg/L 92% of the EPA limit 60 µg/L Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 41.78 µg/L No EPA limit set Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 28.025 µg/L No EPA limit set Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 23.9 µg/L No EPA limit set Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 20.42 µg/L No EPA limit set Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2019
Highest in the city: 21.495 µg/L — NORGE WATER AND SEWER CO., INC · 890 people · 2019 | 2/2 | SYR4 |
| Lithium | 11.6 µg/L No EPA limit set Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2025 | 1/2 | UCMR-5 |
| Lead | 9.601 µg/L 64% of the EPA limit 15 µg/L Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2018 | 1/2 | SYR4 |
| Gross Beta Particle Activity | 6.69415 pCi/L No EPA limit set Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 5.32 µg/L No EPA limit set Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 4.75 µg/L No EPA limit set Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2019
Highest in the city: 4.91 µg/L — NORGE WATER AND SEWER CO., INC · 890 people · 2019 | 2/2 | SYR4 |
| Bromoform | 3.1 µg/L No EPA limit set Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 2.19 µg/L No EPA limit set Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2019
Highest in the city: 2.56 µg/L — NORGE WATER AND SEWER CO., INC · 890 people · 2019 | 2/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.1363 pCi/L 7.6% of the EPA limit 15 pCi/L Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.7940 pCi/L 16% of the EPA limit 5 pCi/L Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0037 mg/L 25% of the EPA limit 0.0150 mg/L Main supplier: CHICKASHA MUNICIPAL AUTHORITY · 16,036 people · 2024 | 2/2 | 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 Chickasha
| Supplier | Population served |
|---|---|
| CHICKASHA MUNICIPAL AUTHORITY | 16,036 |
| NORGE WATER AND SEWER CO., INC | 890 |
Frequently asked questions about Chickasha tap water
Is Chickasha tap water safe to drink?
EPA testing detected 21 contaminants in the water serving Chickasha. 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 Chickasha?
2 public water suppliers report drinking-water monitoring for Chickasha, Oklahoma to the EPA. Each is listed above with its population served.
What contaminants are in Chickasha's water?
The contaminants EPA monitoring detected in Chickasha include Fluoride, Nitrate-Nitrite, Copper, TTHM, 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.