What was found in ZIP 73507
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 | 719 µg/L 7.2% of the EPA limit 10000 µg/L Main supplier: LAWTON · 92,757 people · 2019
Highest in the ZIP: 1500 µg/L — STEPHENS CO RWD #5 · 6,426 people · 2019 | 2/2 | SYR4 |
| Fluoride | 681 µg/L 17% of the EPA limit 4000 µg/L Main supplier: LAWTON · 92,757 people · 2019 | 2/2 | SYR4 |
| Nitrate | 620 µg/L 6.2% of the EPA limit 10000 µg/L Main supplier: LAWTON · 92,757 people · 2015 | 1/2 | SYR4 |
| Copper | 357.9 µg/L 28% of the EPA limit 1300 µg/L Main supplier: LAWTON · 92,757 people · 2019 | 2/2 | SYR4 |
| Barium | 191.2 µg/L 9.6% of the EPA limit 2000 µg/L Main supplier: LAWTON · 92,757 people · 2019
Highest in the ZIP: 352.25 µg/L — STEPHENS CO RWD #5 · 6,426 people · 2019 | 2/2 | SYR4 |
| TTHM | 28.805 µg/L 36% of the EPA limit 80 µg/L Main supplier: LAWTON · 92,757 people · 2019
Highest in the ZIP: 184.23 µg/L — STEPHENS CO RWD #5 · 6,426 people · 2019 | 2/2 | SYR4 |
| Chlorite | 183.7 µg/L 18% of the EPA limit 1000 µg/L Main supplier: LAWTON · 92,757 people · 2019 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 8.708 µg/L 15% of the EPA limit 60 µg/L Main supplier: LAWTON · 92,757 people · 2019
Highest in the ZIP: 70.525 µg/L — STEPHENS CO RWD #5 · 6,426 people · 2019 | 2/2 | SYR4 |
| Chloroform | 6.532 µg/L No EPA limit set Main supplier: LAWTON · 92,757 people · 2019
Highest in the ZIP: 66.175 µg/L — STEPHENS CO RWD #5 · 6,426 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 8.394 µg/L No EPA limit set Main supplier: LAWTON · 92,757 people · 2019
Highest in the ZIP: 64.745 µg/L — STEPHENS CO RWD #5 · 6,426 people · 2019 | 2/2 | SYR4 |
| Lithium | 53 µg/L No EPA limit set Highest in the ZIP: STEPHENS CO RWD #5 · 6,426 people · 2024 | 1/2 | UCMR-5 |
| Dibromochloromethane | 11.4 µg/L No EPA limit set Main supplier: LAWTON · 92,757 people · 2019
Highest in the ZIP: 50.465 µg/L — STEPHENS CO RWD #5 · 6,426 people · 2019 | 2/2 | SYR4 |
| Bromate | 42.97 µg/L 430% of the EPA limit, at the 95th percentile of samples — 10 µg/L Main supplier: LAWTON · 92,757 people · 2019 | 1/2 | SYR4 |
| Dichloroacetic Acid | 6.302 µg/L No EPA limit set Main supplier: LAWTON · 92,757 people · 2019
Highest in the ZIP: 36.23 µg/L — STEPHENS CO RWD #5 · 6,426 people · 2019 | 2/2 | SYR4 |
| Lead | 29.45 µg/L 196% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: LAWTON · 92,757 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 5.4395 µg/L No EPA limit set Main supplier: LAWTON · 92,757 people · 2019
Highest in the ZIP: 16.74 µg/L — STEPHENS CO RWD #5 · 6,426 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 1.66 µg/L No EPA limit set Main supplier: LAWTON · 92,757 people · 2019
Highest in the ZIP: 15.53 µg/L — STEPHENS CO RWD #5 · 6,426 people · 2019 | 2/2 | SYR4 |
| Bromoform | 12.1 µg/L No EPA limit set Main supplier: LAWTON · 92,757 people · 2019 | 2/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.7 pCi/L 11% of the EPA limit 15 pCi/L Main supplier: LAWTON · 92,757 people · 2015
Highest in the ZIP: 9.99 pCi/L — STEPHENS CO RWD #5 · 6,426 people · 2019 | 2/2 | SYR4 |
| Combined Uranium | 7.98 µg/L 27% of the EPA limit 30 µg/L Highest in the ZIP: STEPHENS CO RWD #5 · 6,426 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 3.49 µg/L No EPA limit set Main supplier: LAWTON · 92,757 people · 2019
Highest in the ZIP: 4.14 µg/L — STEPHENS CO RWD #5 · 6,426 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 3.54 pCi/L No EPA limit set Main supplier: LAWTON · 92,757 people · 2015 | 1/2 | SYR4 |
| Arsenic | 3.09 µg/L 31% of the EPA limit 10 µg/L Highest in the ZIP: STEPHENS CO RWD #5 · 6,426 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 1.6585 µg/L No EPA limit set Main supplier: LAWTON · 92,757 people · 2019
Highest in the ZIP: 2.945 µg/L — STEPHENS CO RWD #5 · 6,426 people · 2019 | 2/2 | SYR4 |
| Diquat | 1.6 µg/L 8% of the EPA limit 20 µg/L Highest in the ZIP: STEPHENS CO RWD #5 · 6,426 people · 2019 | 1/2 | SYR4 |
| Picloram | 0.7030 µg/L 0.1% of the EPA limit 500 µg/L Highest in the ZIP: STEPHENS CO RWD #5 · 6,426 people · 2019 | 1/2 | SYR4 |
| 2,4-D | 0.3700 µg/L 0.5% of the EPA limit 70 µg/L Highest in the ZIP: STEPHENS CO RWD #5 · 6,426 people · 2019 | 1/2 | SYR4 |
| Pentachlorophenol | 0.2100 µg/L 21% of the EPA limit 1 µg/L Highest in the ZIP: STEPHENS CO RWD #5 · 6,426 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.0935 pCi/L 1.9% of the EPA limit 5 pCi/L Main supplier: LAWTON · 92,757 people · 2015 | 1/2 | SYR4 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: LAWTON · 92,757 people · 2025 | 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 73507
| Supplier | State | Population served |
|---|---|---|
| LAWTON | OK | 92,757 |
| STEPHENS CO RWD #5 | OK | 6,426 |
Frequently asked questions about ZIP 73507 tap water
Is the tap water in ZIP 73507 safe to drink?
EPA testing detected 30 contaminants across the water suppliers serving ZIP 73507. 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 73507?
2 public water suppliers report EPA drinking-water monitoring for ZIP 73507. Each is listed above with its population served.
What contaminants are in ZIP 73507's water?
EPA monitoring detected Nitrate-Nitrite, Fluoride, Nitrate, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.