What was found in ZIP 71730
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 | 1012.5 µg/L 25% of the EPA limit 4000 µg/L Main supplier: EL DORADO WATERWORKS · 17,932 people · 2019 | 1/1 | SYR4 |
| Copper | 706 µg/L 54% of the EPA limit 1300 µg/L Main supplier: EL DORADO WATERWORKS · 17,932 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 100 µg/L 1% of the EPA limit 10000 µg/L Main supplier: EL DORADO WATERWORKS · 17,932 people · 2019 | 1/1 | SYR4 |
| TTHM | 83.55 µg/L 104% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: EL DORADO WATERWORKS · 17,932 people · 2019 | 1/1 | SYR4 |
| Bromoform | 60.49 µg/L No EPA limit set Main supplier: EL DORADO WATERWORKS · 17,932 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 17.645 µg/L No EPA limit set Main supplier: EL DORADO WATERWORKS · 17,932 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 12.56 µg/L 21% of the EPA limit 60 µg/L Main supplier: EL DORADO WATERWORKS · 17,932 people · 2019 | 1/1 | SYR4 |
| Lithium | 11.2 µg/L No EPA limit set Main supplier: EL DORADO WATERWORKS · 17,932 people · 2023 | 1/1 | UCMR-5 |
| Dibromoacetic Acid | 10.095 µg/L No EPA limit set Main supplier: EL DORADO WATERWORKS · 17,932 people · 2019 | 1/1 | SYR4 |
| Lead | 9 µg/L 60% of the EPA limit 15 µg/L Main supplier: EL DORADO WATERWORKS · 17,932 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 6.1 µg/L No EPA limit set Main supplier: EL DORADO WATERWORKS · 17,932 people · 2019 | 1/1 | SYR4 |
| Chloroform | 2.5 µg/L No EPA limit set Main supplier: EL DORADO WATERWORKS · 17,932 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 2.36 µg/L No EPA limit set Main supplier: EL DORADO WATERWORKS · 17,932 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.81 µg/L No EPA limit set Main supplier: EL DORADO WATERWORKS · 17,932 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 1.5 µg/L No EPA limit set Main supplier: EL DORADO WATERWORKS · 17,932 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: EL DORADO WATERWORKS · 17,932 people · 2025 | 1/1 | 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 71730
| Supplier | State | Population served |
|---|---|---|
| EL DORADO WATERWORKS | AR | 17,932 |
Frequently asked questions about ZIP 71730 tap water
Is the tap water in ZIP 71730 safe to drink?
EPA testing detected 16 contaminants across the water suppliers serving ZIP 71730. 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 71730?
1 public water supplier report EPA drinking-water monitoring for ZIP 71730. Each is listed above with its population served.
What contaminants are in ZIP 71730's water?
EPA monitoring detected Fluoride, Copper, Nitrate-Nitrite, TTHM, Bromoform, and others across this ZIP's suppliers. The full list with levels and sources is above.