What was found in ZIP 71635
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 | 1029 µg/L 26% of the EPA limit 4000 µg/L Main supplier: CROSSETT WATER COMMISSION · 7,900 people · 2019
Highest in the ZIP: 1402.5 µg/L — HAMBURG WATERWORKS · 5,600 people · 2019 | 2/2 | SYR4 |
| Copper | 337.6 µg/L 26% of the EPA limit 1300 µg/L Main supplier: CROSSETT WATER COMMISSION · 7,900 people · 2018
Highest in the ZIP: 1258 µg/L — HAMBURG WATERWORKS · 5,600 people · 2017 | 2/2 | SYR4 |
| Nitrate-Nitrite | 160 µg/L 1.6% of the EPA limit 10000 µg/L Main supplier: CROSSETT WATER COMMISSION · 7,900 people · 2019
Highest in the ZIP: 806 µg/L — HAMBURG WATERWORKS · 5,600 people · 2019 | 2/2 | SYR4 |
| Nitrate | 760 µg/L 7.6% of the EPA limit 10000 µg/L Highest in the ZIP: HAMBURG WATERWORKS · 5,600 people · 2019 | 1/2 | SYR4 |
| Lead | 7.7 µg/L 51% of the EPA limit 15 µg/L Main supplier: CROSSETT WATER COMMISSION · 7,900 people · 2019
Highest in the ZIP: 58.12 µg/L — HAMBURG WATERWORKS · 5,600 people · 2019 | 2/2 | SYR4 |
| Chloroform | 42.7 µg/L No EPA limit set Main supplier: CROSSETT WATER COMMISSION · 7,900 people · 2019 | 1/2 | SYR4 |
| TTHM | 37.62 µg/L 47% of the EPA limit 80 µg/L Main supplier: CROSSETT WATER COMMISSION · 7,900 people · 2018 | 2/2 | SYR4 |
| Lithium | 23.5 µg/L No EPA limit set Main supplier: CROSSETT WATER COMMISSION · 7,900 people · 2023
Highest in the ZIP: 27.1 µg/L — HAMBURG WATERWORKS · 5,600 people · 2024 | 2/2 | UCMR-5 |
| Bromodichloromethane | 13.3 µg/L No EPA limit set Main supplier: CROSSETT WATER COMMISSION · 7,900 people · 2019 | 1/2 | SYR4 |
| Selenium | 5.88 µg/L 12% of the EPA limit 50 µg/L Highest in the ZIP: HAMBURG WATERWORKS · 5,600 people · 2019 | 1/2 | SYR4 |
| Bromoform | 5.1 µg/L No EPA limit set Main supplier: CROSSETT WATER COMMISSION · 7,900 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 3.5 pCi/L No EPA limit set Main supplier: CROSSETT WATER COMMISSION · 7,900 people · 2019
Highest in the ZIP: 4.7 pCi/L — HAMBURG WATERWORKS · 5,600 people · 2018 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 3.28 µg/L 5.5% of the EPA limit 60 µg/L Main supplier: CROSSETT WATER COMMISSION · 7,900 people · 2019 | 2/2 | SYR4 |
| Chromium | 1.19 µg/L 1.2% of the EPA limit 100 µg/L Main supplier: CROSSETT WATER COMMISSION · 7,900 people · 2019
Highest in the ZIP: 2.865 µg/L — HAMBURG WATERWORKS · 5,600 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 2.22 µg/L No EPA limit set Main supplier: CROSSETT WATER COMMISSION · 7,900 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 2.1 µg/L No EPA limit set Main supplier: CROSSETT WATER COMMISSION · 7,900 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 2.0525 µg/L No EPA limit set Main supplier: CROSSETT WATER COMMISSION · 7,900 people · 2019 | 2/2 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: CROSSETT WATER COMMISSION · 7,900 people · 2025
Highest in the ZIP: 0.0020 mg/L — HAMBURG WATERWORKS · 5,600 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 71635
| Supplier | State | Population served |
|---|---|---|
| CROSSETT WATER COMMISSION | AR | 7,900 |
| HAMBURG WATERWORKS | AR | 5,600 |
Frequently asked questions about ZIP 71635 tap water
Is the tap water in ZIP 71635 safe to drink?
EPA testing detected 18 contaminants across the water suppliers serving ZIP 71635. 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 71635?
2 public water suppliers report EPA drinking-water monitoring for ZIP 71635. Each is listed above with its population served.
What contaminants are in ZIP 71635's water?
EPA monitoring detected Fluoride, Copper, Nitrate-Nitrite, Nitrate, Lead, and others across this ZIP's suppliers. The full list with levels and sources is above.