What was found in ZIP 72404
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 | 1184.5 µg/L 12% of the EPA limit 10000 µg/L Main supplier: JONESBORO WATER SYSTEM · 81,888 people · 2019
Highest in the ZIP: 3968 µg/L — CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 2/3 | SYR4 |
| Nitrate | 1167.5 µg/L 12% of the EPA limit 10000 µg/L Main supplier: JONESBORO WATER SYSTEM · 81,888 people · 2019
Highest in the ZIP: 3900 µg/L — CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 2/3 | SYR4 |
| Fluoride | 915.5 µg/L 23% of the EPA limit 4000 µg/L Main supplier: JONESBORO WATER SYSTEM · 81,888 people · 2019 | 2/3 | SYR4 |
| Copper | 73.95 µg/L 5.7% of the EPA limit 1300 µg/L Main supplier: JONESBORO WATER SYSTEM · 81,888 people · 2019
Highest in the ZIP: 549 µg/L — CROWLEYS RIDGE WATER ASSOC · 3,873 people · 2019 | 3/3 | SYR4 |
| TTHM | 20.15 µg/L 25% of the EPA limit 80 µg/L Main supplier: JONESBORO WATER SYSTEM · 81,888 people · 2018
Highest in the ZIP: 93.575 µg/L — CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 3/3 | SYR4 |
| Lead | 1.6 µg/L 11% of the EPA limit 15 µg/L Main supplier: JONESBORO WATER SYSTEM · 81,888 people · 2019
Highest in the ZIP: 33.77 µg/L — CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 6.665 µg/L No EPA limit set Main supplier: JONESBORO WATER SYSTEM · 81,888 people · 2018
Highest in the ZIP: 33.26 µg/L — CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 3.721 µg/L No EPA limit set Main supplier: JONESBORO WATER SYSTEM · 81,888 people · 2018
Highest in the ZIP: 29.65 µg/L — CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 3/3 | SYR4 |
| Chloroform | 2.184 µg/L No EPA limit set Main supplier: JONESBORO WATER SYSTEM · 81,888 people · 2018
Highest in the ZIP: 24.86 µg/L — CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 2.9 µg/L 4.8% of the EPA limit 60 µg/L Main supplier: JONESBORO WATER SYSTEM · 81,888 people · 2019
Highest in the ZIP: 21.62 µg/L — CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 3/3 | SYR4 |
| Bromoform | 11.39 µg/L No EPA limit set Main supplier: JONESBORO WATER SYSTEM · 81,888 people · 2018
Highest in the ZIP: 21.25 µg/L — CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 3/3 | SYR4 |
| Lithium | 12.1 µg/L No EPA limit set Highest in the ZIP: CROSS COUNTY RURAL WATER SYS · 8,750 people · 2024 | 2/3 | UCMR-5 |
| Dichloroacetic Acid | 9.66 µg/L No EPA limit set Highest in the ZIP: CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 2/3 | SYR4 |
| Trichloroacetic Acid | 9.2 µg/L No EPA limit set Highest in the ZIP: CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 2/3 | SYR4 |
| Dibromoacetic Acid | 2.835 µg/L No EPA limit set Main supplier: JONESBORO WATER SYSTEM · 81,888 people · 2019
Highest in the ZIP: 7.64 µg/L — CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 3/3 | SYR4 |
| Selenium | 5.8 µg/L 12% of the EPA limit 50 µg/L Highest in the ZIP: CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 1/3 | SYR4 |
| Monochloroacetic Acid | 5.275 µg/L No EPA limit set Highest in the ZIP: CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 1/3 | SYR4 |
| Gross Beta Particle Activity | 4.2 pCi/L No EPA limit set Main supplier: JONESBORO WATER SYSTEM · 81,888 people · 2018
Highest in the ZIP: 4.5 pCi/L — CROSS COUNTY RURAL WATER SYS · 8,750 people · 2018 | 3/3 | SYR4 |
| Monobromoacetic Acid | 1.39 µg/L No EPA limit set Main supplier: JONESBORO WATER SYSTEM · 81,888 people · 2019
Highest in the ZIP: 3.02 µg/L — CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 2/3 | SYR4 |
| Arsenic | 2.8 µg/L 28% of the EPA limit 10 µg/L Highest in the ZIP: CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 1/3 | SYR4 |
| Chromium | 1.37 µg/L 1.4% of the EPA limit 100 µg/L Main supplier: JONESBORO WATER SYSTEM · 81,888 people · 2019
Highest in the ZIP: 1.94 µg/L — CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 2/3 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.59 µg/L 27% of the EPA limit 6 µg/L Highest in the ZIP: CROSS COUNTY RURAL WATER SYS · 8,750 people · 2019 | 1/3 | SYR4 |
| 1,1-Dichloroethylene | 0.7310 µg/L 10% of the EPA limit 7 µg/L Main supplier: JONESBORO WATER SYSTEM · 81,888 people · 2018 | 1/3 | SYR4 |
| Pfba | 0.0052 µg/L No EPA limit set Highest in the ZIP: CROWLEYS RIDGE WATER ASSOC · 3,873 people · 2025 | 1/3 | UCMR-5 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: JONESBORO WATER SYSTEM · 81,888 people · 2025 | 3/3 | 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 72404
| Supplier | State | Population served |
|---|---|---|
| JONESBORO WATER SYSTEM | AR | 81,888 |
| CROSS COUNTY RURAL WATER SYS | AR | 8,750 |
| CROWLEYS RIDGE WATER ASSOC | AR | 3,873 |
Frequently asked questions about ZIP 72404 tap water
Is the tap water in ZIP 72404 safe to drink?
EPA testing detected 25 contaminants across the water suppliers serving ZIP 72404. 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 72404?
3 public water suppliers report EPA drinking-water monitoring for ZIP 72404. Each is listed above with its population served.
What contaminants are in ZIP 72404's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.