What was found in ZIP 74337
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 1400 µg/L 14% of the EPA limit 10000 µg/L Highest in the ZIP: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 1/2 | SYR4 |
| Chlorite | 969.9 µg/L 97% of the EPA limit 1000 µg/L Highest in the ZIP: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 1/2 | SYR4 |
| Fluoride | 628 µg/L 16% of the EPA limit 4000 µg/L Highest in the ZIP: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 1/2 | SYR4 |
| Copper | 585 µg/L 45% of the EPA limit 1300 µg/L Main supplier: MAYES CO RWD # 2 · 6,280 people · 2017 | 2/2 | SYR4 |
| TTHM | 90.97 µg/L 114% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: MAYES CO RWD # 2 · 6,280 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 88.95 µg/L 148% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: MAYES CO RWD # 2 · 6,280 people · 2019 | 2/2 | SYR4 |
| Chloroform | 68.385 µg/L No EPA limit set Main supplier: MAYES CO RWD # 2 · 6,280 people · 2019 | 2/2 | SYR4 |
| Lead | 35.91 µg/L 239% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: MAYES CO RWD # 2 · 6,280 people · 2017
Highest in the ZIP: 52.58 µg/L — OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2018 | 2/2 | SYR4 |
| Barium | 49 µg/L 2.5% of the EPA limit 2000 µg/L Highest in the ZIP: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2015 | 1/2 | SYR4 |
| Dichloroacetic Acid | 46.205 µg/L No EPA limit set Main supplier: MAYES CO RWD # 2 · 6,280 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 35.065 µg/L No EPA limit set Main supplier: MAYES CO RWD # 2 · 6,280 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 19.57 µg/L No EPA limit set Main supplier: MAYES CO RWD # 2 · 6,280 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 7.3325 µg/L No EPA limit set Main supplier: MAYES CO RWD # 2 · 6,280 people · 2019
Highest in the ZIP: 10.7 µg/L — OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 6.189 µg/L No EPA limit set Main supplier: MAYES CO RWD # 2 · 6,280 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 3.76275 pCi/L No EPA limit set Highest in the ZIP: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 2.404 µg/L No EPA limit set Main supplier: MAYES CO RWD # 2 · 6,280 people · 2019
Highest in the ZIP: 2.426 µg/L — OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 2/2 | SYR4 |
| Bromoform | 1.68 µg/L No EPA limit set Highest in the ZIP: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 1.54 µg/L No EPA limit set Main supplier: MAYES CO RWD # 2 · 6,280 people · 2019
Highest in the ZIP: 1.545 µg/L — OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 2/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.6540 pCi/L 4.4% of the EPA limit 15 pCi/L Highest in the ZIP: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 1/2 | SYR4 |
| Atrazine | 0.4476 µg/L 15% of the EPA limit 3 µg/L Highest in the ZIP: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 1/2 | SYR4 |
| PFOS | 0.0177 µg/L No EPA limit set Main supplier: MAYES CO RWD # 2 · 6,280 people · 2024 | 2/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: MAYES CO RWD # 2 · 6,280 people · 2023
Highest in the ZIP: 0.0027 mg/L — OKLA ORDNANCE WORKS AUTHORITY · 4,000 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.
Water suppliers serving ZIP 74337
| Supplier | State | Population served |
|---|---|---|
| MAYES CO RWD # 2 | OK | 6,280 |
| OKLA ORDNANCE WORKS AUTHORITY | OK | 4,000 |
Frequently asked questions about ZIP 74337 tap water
Is the tap water in ZIP 74337 safe to drink?
EPA testing detected 22 contaminants across the water suppliers serving ZIP 74337. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 74337?
2 public water suppliers report EPA drinking-water monitoring for ZIP 74337. Each is listed above with its population served.
What contaminants are in ZIP 74337's water?
EPA monitoring detected Nitrate-Nitrite, Chlorite, Fluoride, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.