What was found in ZIP 63011
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 | 2/2 | SYR4 |
| Nitrate | 3450 µg/L 35% of the EPA limit 10000 µg/L | 1/2 | SYR4 |
| Copper | 846 µg/L 65% of the EPA limit 1300 µg/L | 2/2 | SYR4 |
| Fluoride | 800 µg/L 20% of the EPA limit 4000 µg/L | 2/2 | SYR4 |
| Nitrite | 100 µg/L 10% of the EPA limit 1000 µg/L | 1/2 | SYR4 |
| TTHM | 99.9 µg/L 125% of the EPA limit, in the worst sample — 80 µg/L | 2/2 | SYR4 |
| Chloroform | 96.5 µg/L No EPA limit set | 2/2 | SYR4 |
| Lithium | 86.8 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 54.3 µg/L 90% of the EPA limit 60 µg/L | 1/2 | SYR4 |
| Barium | 54.2 µg/L 2.7% of the EPA limit 2000 µg/L | 2/2 | SYR4 |
| Dichloroacetic Acid | 44.7 µg/L No EPA limit set | 2/2 | SYR4 |
| Bromodichloromethane | 16.7 µg/L No EPA limit set | 2/2 | SYR4 |
| Lead | 10 µg/L 67% of the EPA limit 15 µg/L | 2/2 | SYR4 |
| Dibromochloromethane | 8.1 µg/L No EPA limit set | 2/2 | SYR4 |
| Trichloroacetic Acid | 7.8 µg/L No EPA limit set | 2/2 | SYR4 |
| Monobromoacetic Acid | 6.6 µg/L No EPA limit set | 2/2 | SYR4 |
| Monochloroacetic Acid | 4.7 µg/L No EPA limit set | 1/2 | SYR4 |
| Dibromoacetic Acid | 3.5 µg/L No EPA limit set | 2/2 | SYR4 |
| Chromium | 3.01 µg/L 3% of the EPA limit 100 µg/L | 2/2 | SYR4 |
| Selenium | 3 µg/L 6% of the EPA limit 50 µg/L | 1/2 | SYR4 |
| Arsenic | 1.74 µg/L 17% of the EPA limit 10 µg/L | 1/2 | SYR4 |
| Bromoform | 1.4 µg/L No EPA limit set | 2/2 | SYR4 |
| Dichloromethane | 1.1 µg/L 22% of the EPA limit 5 µg/L | 1/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.1 µg/L 18% of the EPA limit 6 µg/L | 1/2 | SYR4 |
| Atrazine | 0.7000 µg/L 23% of the EPA limit 3 µg/L | 1/2 | SYR4 |
| Diquat | 0.6000 µg/L 3% of the EPA limit 20 µg/L | 1/2 | SYR4 |
| 2,4-D | 0.5000 µg/L 0.7% of the EPA limit 70 µg/L | 1/2 | SYR4 |
| Antimony, Total | 0.5000 µg/L 8.3% of the EPA limit 6 µg/L | 1/2 | SYR4 |
| Picloram | 0.2000 µg/L 0% of the EPA limit 500 µg/L | 1/2 | SYR4 |
| Hexachlorocyclopentadiene | 0.1000 µg/L 0.2% of the EPA limit 50 µg/L | 1/2 | SYR4 |
| Benzo(A)Pyrene | 0.0400 µg/L 20% of the EPA limit 0.2000 µg/L | 1/2 | SYR4 |
| Ethylene Dibromide | 0.0200 µg/L 40% of the EPA limit 0.0500 µg/L | 1/2 | SYR4 |
| Pfba | 0.0051 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Lead | 0.0022 mg/L 15% of the EPA limit 0.0150 mg/L | 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 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 63011
| Supplier | State | Population served |
|---|---|---|
| MO AMERICAN ST LOUIS ST CHARLES COUNTIES | MO | 1,111,000 |
| CLARK COUNTY CONS PWSD 1 | MO | 7,140 |
Frequently asked questions about ZIP 63011 tap water
Is the tap water in ZIP 63011 safe to drink?
EPA testing detected 34 contaminants across the water suppliers serving ZIP 63011. 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 63011?
2 public water suppliers report EPA drinking-water monitoring for ZIP 63011. Each is listed above with its population served.
What contaminants are in ZIP 63011's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Copper, Fluoride, Nitrite, and others across this ZIP's suppliers. The full list with levels and sources is above.