What was found in ZIP 72734
The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 3570 µg/L 36% of the EPA limit 10000 µg/L | 1/4 | SYR4 |
| Nitrate | 2640 µg/L 26% of the EPA limit 10000 µg/L | 1/4 | SYR4 |
| Copper | 1100 µg/L 85% of the EPA limit 1300 µg/L | 4/4 | SYR4 |
| Fluoride | 1000 µg/L 25% of the EPA limit 4000 µg/L | 2/4 | SYR4 |
| Cyanide | 310 µg/L 155% of the EPA limit, in the worst sample — 200 µg/L | 1/4 | SYR4 |
| TTHM | 175 µg/L 219% of the EPA limit, in the worst sample — 80 µg/L | 4/4 | SYR4 |
| Chloroform | 166 µg/L No EPA limit set | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 82.3 µg/L 137% of the EPA limit, in the worst sample — 60 µg/L | 4/4 | SYR4 |
| Trichloroacetic Acid | 61.2 µg/L No EPA limit set | 4/4 | SYR4 |
| Dichloroacetic Acid | 42.3 µg/L No EPA limit set | 4/4 | SYR4 |
| Bromodichloromethane | 21.4 µg/L No EPA limit set | 4/4 | SYR4 |
| Dibromochloromethane | 12.5 µg/L No EPA limit set | 4/4 | SYR4 |
| Lead | 11 µg/L 73% of the EPA limit 15 µg/L | 4/4 | SYR4 |
| Lithium | 10 µg/L No EPA limit set | 1/4 | UCMR-5 |
| Gross Beta Particle Activity | 4.2 pCi/L No EPA limit set | 2/4 | SYR4 |
| Monochloroacetic Acid | 4.2 µg/L No EPA limit set | 4/4 | SYR4 |
| Dibromoacetic Acid | 3 µg/L No EPA limit set | 4/4 | SYR4 |
| Bromoform | 2 µg/L No EPA limit set | 1/4 | SYR4 |
| Monobromoacetic Acid | 2 µg/L No EPA limit set | 4/4 | SYR4 |
| Chromium | 1.3 µg/L 1.3% of the EPA limit 100 µg/L | 2/4 | SYR4 |
| Simazine | 0.1100 µg/L 2.8% of the EPA limit 4 µg/L | 1/4 | SYR4 |
| PFBS | 0.0070 µg/L No EPA limit set | 1/4 | UCMR-5 |
| Pfpea | 0.0055 µg/L No EPA limit set | 1/4 | UCMR-5 |
| Pfhxa | 0.0038 µg/L No EPA limit set | 1/4 | UCMR-5 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L | 4/4 | 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 single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
Water suppliers serving ZIP 72734
| Supplier | State | Population served |
|---|---|---|
| SILOAM SPRINGS WATERWORKS | AR | 21,430 |
| WASHINGTON WATER AUTHORITY WWA | AR | 20,140 |
| GENTRY WATERWORKS | AR | 7,910 |
| DECATUR WATERWORKS | AR | 2,468 |
Frequently asked questions about ZIP 72734 tap water
Is the tap water in ZIP 72734 safe to drink?
EPA testing detected 25 contaminants across the water suppliers serving ZIP 72734. 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 72734?
4 public water suppliers report EPA drinking-water monitoring for ZIP 72734. Each is listed above with its population served.
What contaminants are in ZIP 72734's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Copper, Fluoride, Cyanide, and others across this ZIP's suppliers. The full list with levels and sources is above.