What was found in ZIP 65201
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 | 7900 µg/L 79% of the EPA limit 10000 µg/L | 4/5 | SYR4 |
| Fluoride | 1640 µg/L 41% of the EPA limit 4000 µg/L | 4/5 | SYR4 |
| Copper | 1120 µg/L 86% of the EPA limit 1300 µg/L | 5/5 | SYR4 |
| Barium | 203 µg/L 10% of the EPA limit 2000 µg/L | 4/5 | SYR4 |
| TTHM | 97.9 µg/L 122% of the EPA limit, in the worst sample — 80 µg/L | 5/5 | SYR4 |
| Lithium | 68.8 µg/L No EPA limit set | 3/5 | UCMR-5 |
| Chloroform | 68.3 µg/L No EPA limit set | 5/5 | SYR4 |
| Total Haloacetic Acids (HAA5) | 57.4 µg/L 96% of the EPA limit 60 µg/L | 2/5 | SYR4 |
| Dichloroacetic Acid | 37.1 µg/L No EPA limit set | 5/5 | SYR4 |
| Lead | 36.3 µg/L 242% of the EPA limit, in the worst sample — 15 µg/L | 5/5 | SYR4 |
| Bromodichloromethane | 29.8 µg/L No EPA limit set | 5/5 | SYR4 |
| Trichloroacetic Acid | 24.3 µg/L No EPA limit set | 4/5 | SYR4 |
| Dibromochloromethane | 22.2 µg/L No EPA limit set | 5/5 | SYR4 |
| Gross Alpha, Excl. Radon And U | 17.2 pCi/L 115% of the EPA limit, in the worst sample — 15 pCi/L | 2/5 | SYR4 |
| Monobromoacetic Acid | 15 µg/L No EPA limit set | 3/5 | SYR4 |
| Chromium | 6.41 µg/L 6.4% of the EPA limit 100 µg/L | 3/5 | SYR4 |
| Dibromoacetic Acid | 6.27 µg/L No EPA limit set | 5/5 | SYR4 |
| Bromoform | 5.13 µg/L No EPA limit set | 4/5 | SYR4 |
| Combined Radium (-226 And -228) | 4 pCi/L 80% of the EPA limit 5 pCi/L | 2/5 | SYR4 |
| Combined Uranium | 1.1 µg/L 3.7% of the EPA limit 30 µg/L | 1/5 | SYR4 |
| Dichloromethane | 0.6200 µg/L 12% of the EPA limit 5 µg/L | 1/5 | SYR4 |
| Pfba | 0.0093 µg/L No EPA limit set | 1/5 | UCMR-5 |
| Lead | 0.0035 mg/L 23% of the EPA limit 0.0150 mg/L | 5/5 | 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 65201
| Supplier | State | Population served |
|---|---|---|
| CITY OF COLUMBIA UTILITIES | MO | 126,254 |
| BOONE COUNTY CONS PWSD 1 | MO | 24,700 |
| BOONE COUNTY PWSD 9 | MO | 15,035 |
| THOMAS HILL PWSD 1 | MO | 11,250 |
| CLARK COUNTY CONS PWSD 1 | MO | 7,140 |
Frequently asked questions about ZIP 65201 tap water
Is the tap water in ZIP 65201 safe to drink?
EPA testing detected 23 contaminants across the water suppliers serving ZIP 65201. 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 65201?
5 public water suppliers report EPA drinking-water monitoring for ZIP 65201. Each is listed above with its population served.
What contaminants are in ZIP 65201's water?
EPA monitoring detected Nitrate-Nitrite, Fluoride, Copper, Barium, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.