What was found in ZIP 72936
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 |
|---|---|---|---|
| Fluoride | 938 µg/L 23% of the EPA limit 4000 µg/L Main supplier: FORT SMITH WATER UTILITIES · 86,209 people · 2019
Highest in the ZIP: 1030 µg/L — BOONEVILLE WATERWORKS · 3,847 people · 2019 | 4/5 | SYR4 |
| Nitrate-Nitrite | 474 µg/L 4.7% of the EPA limit 10000 µg/L Main supplier: FORT SMITH WATER UTILITIES · 86,209 people · 2019
Highest in the ZIP: 700 µg/L — BOONEVILLE WATERWORKS · 3,847 people · 2019 | 4/5 | SYR4 |
| Chlorite | 682.75 µg/L 68% of the EPA limit 1000 µg/L Highest in the ZIP: GREENWOOD WATERWORKS · 9,905 people · 2019 | 1/5 | SYR4 |
| Copper | 604.4 µg/L 46% of the EPA limit 1300 µg/L Highest in the ZIP: MILLTOWN-WASHBURN WATER USERS · 4,325 people · 2019 | 4/5 | SYR4 |
| Nitrate | 540 µg/L 5.4% of the EPA limit 10000 µg/L Main supplier: FORT SMITH WATER UTILITIES · 86,209 people · 2012 | 2/5 | SYR4 |
| Barium | 230 µg/L 12% of the EPA limit 2000 µg/L Highest in the ZIP: GREENWOOD WATERWORKS · 9,905 people · 2019 | 1/5 | SYR4 |
| TTHM | 59.615 µg/L 75% of the EPA limit 80 µg/L Main supplier: FORT SMITH WATER UTILITIES · 86,209 people · 2019
Highest in the ZIP: 121.55 µg/L — MILLTOWN-WASHBURN WATER USERS · 4,325 people · 2019 | 5/5 | SYR4 |
| Chloroform | 51.635 µg/L No EPA limit set Main supplier: FORT SMITH WATER UTILITIES · 86,209 people · 2019
Highest in the ZIP: 111.95 µg/L — MILLTOWN-WASHBURN WATER USERS · 4,325 people · 2019 | 5/5 | SYR4 |
| Total Haloacetic Acids (HAA5) | 20.87 µg/L 35% of the EPA limit 60 µg/L Main supplier: FORT SMITH WATER UTILITIES · 86,209 people · 2019
Highest in the ZIP: 42.68 µg/L — MILLTOWN-WASHBURN WATER USERS · 4,325 people · 2019 | 5/5 | SYR4 |
| Dichloroacetic Acid | 12.705 µg/L No EPA limit set Main supplier: FORT SMITH WATER UTILITIES · 86,209 people · 2019
Highest in the ZIP: 24.62 µg/L — GREENWOOD WATERWORKS · 9,905 people · 2019 | 5/5 | SYR4 |
| Lead | 3.88 µg/L 26% of the EPA limit 15 µg/L Main supplier: FORT SMITH WATER UTILITIES · 86,209 people · 2019
Highest in the ZIP: 22.8 µg/L — BOONEVILLE WATERWORKS · 3,847 people · 2019 | 5/5 | SYR4 |
| Trichloroacetic Acid | 8.3 µg/L No EPA limit set Main supplier: FORT SMITH WATER UTILITIES · 86,209 people · 2019
Highest in the ZIP: 20.375 µg/L — BOONEVILLE WATERWORKS · 3,847 people · 2019 | 5/5 | SYR4 |
| Bromodichloromethane | 8.5 µg/L No EPA limit set Main supplier: FORT SMITH WATER UTILITIES · 86,209 people · 2019
Highest in the ZIP: 11.8 µg/L — MILLTOWN-WASHBURN WATER USERS · 4,325 people · 2019 | 5/5 | SYR4 |
| Monochloroacetic Acid | 3.325 µg/L No EPA limit set Main supplier: FORT SMITH WATER UTILITIES · 86,209 people · 2019
Highest in the ZIP: 5.945 µg/L — JAMES FORK REGIONAL WATER DISTRICT · 11,538 people · 2019 | 5/5 | SYR4 |
| Monobromoacetic Acid | 4.81 µg/L No EPA limit set Main supplier: FORT SMITH WATER UTILITIES · 86,209 people · 2019 | 4/5 | SYR4 |
| Gross Beta Particle Activity | 3.675 pCi/L No EPA limit set Highest in the ZIP: GREENWOOD WATERWORKS · 9,905 people · 2019 | 2/5 | SYR4 |
| Dibromochloromethane | 2.388 µg/L No EPA limit set Main supplier: FORT SMITH WATER UTILITIES · 86,209 people · 2019 | 5/5 | SYR4 |
| Dibromoacetic Acid | 1.3 µg/L No EPA limit set Main supplier: FORT SMITH WATER UTILITIES · 86,209 people · 2019 | 2/5 | SYR4 |
| Chromium | 1.26 µg/L 1.3% of the EPA limit 100 µg/L Highest in the ZIP: JAMES FORK REGIONAL WATER DISTRICT · 11,538 people · 2019 | 2/5 | SYR4 |
| Carbon Tetrachloride | 0.5200 µg/L 10% of the EPA limit 5 µg/L Main supplier: FORT SMITH WATER UTILITIES · 86,209 people · 2019 | 1/5 | SYR4 |
| Picloram | 0.2780 µg/L 0.1% of the EPA limit 500 µg/L Highest in the ZIP: BOONEVILLE WATERWORKS · 3,847 people · 2018 | 1/5 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: FORT SMITH WATER UTILITIES · 86,209 people · 2025 | 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.
Water suppliers serving ZIP 72936
| Supplier | State | Population served |
|---|---|---|
| FORT SMITH WATER UTILITIES | AR | 86,209 |
| JAMES FORK REGIONAL WATER DISTRICT | AR | 11,538 |
| GREENWOOD WATERWORKS | AR | 9,905 |
| MILLTOWN-WASHBURN WATER USERS | AR | 4,325 |
| BOONEVILLE WATERWORKS | AR | 3,847 |
Frequently asked questions about ZIP 72936 tap water
Is the tap water in ZIP 72936 safe to drink?
EPA testing detected 22 contaminants across the water suppliers serving ZIP 72936. 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 72936?
5 public water suppliers report EPA drinking-water monitoring for ZIP 72936. Each is listed above with its population served.
What contaminants are in ZIP 72936's water?
EPA monitoring detected Fluoride, Nitrate-Nitrite, Chlorite, Copper, Nitrate, and others across this ZIP's suppliers. The full list with levels and sources is above.