What was found in ZIP 65255
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 | 1317 µg/L 33% of the EPA limit 4000 µg/L Main supplier: BOONE COUNTY PWSD 9 · 15,035 people · 2018
Highest in the ZIP: 1619 µg/L — BOONE COUNTY PWSD 10 · 4,963 people · 2018 | 3/4 | SYR4 |
| Copper | 165.55 µg/L 13% of the EPA limit 1300 µg/L Main supplier: BOONE COUNTY PWSD 9 · 15,035 people · 2018
Highest in the ZIP: 863.25 µg/L — THOMAS HILL PWSD 1 · 11,250 people · 2018 | 4/4 | SYR4 |
| Barium | 133.4 µg/L 6.7% of the EPA limit 2000 µg/L Main supplier: BOONE COUNTY PWSD 9 · 15,035 people · 2018 | 3/4 | SYR4 |
| Lithium | 43.9 µg/L No EPA limit set Main supplier: BOONE COUNTY PWSD 9 · 15,035 people · 2024
Highest in the ZIP: 110 µg/L — BOONE COUNTY PWSD 4 · 6,455 people · 2024 | 3/4 | UCMR-5 |
| TTHM | 5.865 µg/L 7.3% of the EPA limit 80 µg/L Main supplier: BOONE COUNTY PWSD 9 · 15,035 people · 2019
Highest in the ZIP: 70.265 µg/L — THOMAS HILL PWSD 1 · 11,250 people · 2019 | 3/4 | SYR4 |
| Chloroform | 0.8770 µg/L No EPA limit set Main supplier: BOONE COUNTY PWSD 9 · 15,035 people · 2019
Highest in the ZIP: 59.3 µg/L — THOMAS HILL PWSD 1 · 11,250 people · 2019 | 3/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 54.9 µg/L 91% of the EPA limit 60 µg/L Highest in the ZIP: THOMAS HILL PWSD 1 · 11,250 people · 2019 | 1/4 | SYR4 |
| Dichloroacetic Acid | 1.4 µg/L No EPA limit set Main supplier: BOONE COUNTY PWSD 9 · 15,035 people · 2019
Highest in the ZIP: 33.435 µg/L — THOMAS HILL PWSD 1 · 11,250 people · 2019 | 3/4 | SYR4 |
| Nitrate-Nitrite | 30 µg/L 0.3% of the EPA limit 10000 µg/L Main supplier: BOONE COUNTY PWSD 9 · 15,035 people · 2019 | 3/4 | SYR4 |
| Trichloroacetic Acid | 19.76 µg/L No EPA limit set Highest in the ZIP: THOMAS HILL PWSD 1 · 11,250 people · 2019 | 1/4 | SYR4 |
| Lead | 13.595 µg/L 91% of the EPA limit 15 µg/L Main supplier: BOONE COUNTY PWSD 9 · 15,035 people · 2018
Highest in the ZIP: 15.66 µg/L — THOMAS HILL PWSD 1 · 11,250 people · 2018 | 4/4 | SYR4 |
| Bromodichloromethane | 1.376 µg/L No EPA limit set Main supplier: BOONE COUNTY PWSD 9 · 15,035 people · 2019
Highest in the ZIP: 12.865 µg/L — THOMAS HILL PWSD 1 · 11,250 people · 2019 | 3/4 | SYR4 |
| Monobromoacetic Acid | 8.661 µg/L No EPA limit set Highest in the ZIP: THOMAS HILL PWSD 1 · 11,250 people · 2019 | 1/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 7.62 pCi/L 51% of the EPA limit 15 pCi/L Main supplier: BOONE COUNTY PWSD 9 · 15,035 people · 2015 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 3.345 pCi/L 67% of the EPA limit 5 pCi/L Main supplier: BOONE COUNTY PWSD 9 · 15,035 people · 2019
Highest in the ZIP: 3.59 pCi/L — BOONE COUNTY PWSD 4 · 6,455 people · 2018 | 3/4 | SYR4 |
| Chromium | 3.186 µg/L 3.2% of the EPA limit 100 µg/L Highest in the ZIP: BOONE COUNTY PWSD 4 · 6,455 people · 2018 | 1/4 | SYR4 |
| Dibromochloromethane | 2.458 µg/L No EPA limit set Main supplier: BOONE COUNTY PWSD 9 · 15,035 people · 2019
Highest in the ZIP: 2.75 µg/L — THOMAS HILL PWSD 1 · 11,250 people · 2019 | 3/4 | SYR4 |
| Dibromoacetic Acid | 1.04 µg/L No EPA limit set Main supplier: BOONE COUNTY PWSD 9 · 15,035 people · 2019
Highest in the ZIP: 2.055 µg/L — THOMAS HILL PWSD 1 · 11,250 people · 2019 | 2/4 | SYR4 |
| Bromoform | 1.826 µg/L No EPA limit set Main supplier: BOONE COUNTY PWSD 9 · 15,035 people · 2019 | 2/4 | SYR4 |
| Xylenes, Total | 0.8800 µg/L 0% of the EPA limit 10000 µg/L Highest in the ZIP: BOONE COUNTY PWSD 4 · 6,455 people · 2018 | 1/4 | SYR4 |
| Ethylbenzene | 0.7700 µg/L 0.1% of the EPA limit 700 µg/L Highest in the ZIP: BOONE COUNTY PWSD 4 · 6,455 people · 2018 | 1/4 | SYR4 |
| Pfba | 0.0093 µg/L No EPA limit set Highest in the ZIP: THOMAS HILL PWSD 1 · 11,250 people · 2025 | 1/4 | UCMR-5 |
| Lead | 0.0028 mg/L 19% of the EPA limit 0.0150 mg/L Main supplier: BOONE COUNTY PWSD 9 · 15,035 people · 2025
Highest in the ZIP: 0.0093 mg/L — BOONE COUNTY PWSD 4 · 6,455 people · 2025 | 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 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 65255
| Supplier | State | Population served |
|---|---|---|
| BOONE COUNTY PWSD 9 | MO | 15,035 |
| THOMAS HILL PWSD 1 | MO | 11,250 |
| BOONE COUNTY PWSD 4 | MO | 6,455 |
| BOONE COUNTY PWSD 10 | MO | 4,963 |
Frequently asked questions about ZIP 65255 tap water
Is the tap water in ZIP 65255 safe to drink?
EPA testing detected 23 contaminants across the water suppliers serving ZIP 65255. 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 65255?
4 public water suppliers report EPA drinking-water monitoring for ZIP 65255. Each is listed above with its population served.
What contaminants are in ZIP 65255's water?
EPA monitoring detected Fluoride, Copper, Barium, Lithium, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.