What was found in ZIP 63070
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 | 1212.5 µg/L 30% of the EPA limit 4000 µg/L Highest in the ZIP: JEFFERSON COUNTY PWSD 7 · 6,100 people · 2017 | 1/3 | SYR4 |
| Nitrate-Nitrite | 286 µg/L 2.9% of the EPA limit 10000 µg/L Highest in the ZIP: JEFFERSON COUNTY PWSD 7 · 6,100 people · 2019 | 1/3 | SYR4 |
| Barium | 189.55 µg/L 9.5% of the EPA limit 2000 µg/L Highest in the ZIP: JEFFERSON COUNTY PWSD 7 · 6,100 people · 2017 | 1/3 | SYR4 |
| Copper | 20.42 µg/L 1.6% of the EPA limit 1300 µg/L Main supplier: JEFFERSON CO CONS PWSD C 1 · 37,000 people · 2019
Highest in the ZIP: 174.55 µg/L — JEFFERSON COUNTY PWSD 7 · 6,100 people · 2017 | 3/3 | SYR4 |
| TTHM | 79.505 µg/L 99% of the EPA limit 80 µg/L Main supplier: JEFFERSON CO CONS PWSD C 1 · 37,000 people · 2019 | 3/3 | SYR4 |
| Chloroform | 75.325 µg/L No EPA limit set Main supplier: JEFFERSON CO CONS PWSD C 1 · 37,000 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 43.82 µg/L 73% of the EPA limit 60 µg/L Main supplier: JEFFERSON CO CONS PWSD C 1 · 37,000 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 39.1 µg/L No EPA limit set Main supplier: JEFFERSON CO CONS PWSD C 1 · 37,000 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 9.5795 µg/L No EPA limit set Main supplier: JEFFERSON CO CONS PWSD C 1 · 37,000 people · 2019
Highest in the ZIP: 24 µg/L — HERCULANEUM PWS · 5,000 people · 2019 | 3/3 | SYR4 |
| Lithium | 22 µg/L No EPA limit set Highest in the ZIP: HERCULANEUM PWS · 5,000 people · 2024 | 2/3 | UCMR-5 |
| Lead | 12.408 µg/L 83% of the EPA limit 15 µg/L Main supplier: JEFFERSON CO CONS PWSD C 1 · 37,000 people · 2019
Highest in the ZIP: 18.484 µg/L — HERCULANEUM PWS · 5,000 people · 2017 | 3/3 | SYR4 |
| Dibromochloromethane | 3.076 µg/L No EPA limit set Main supplier: JEFFERSON CO CONS PWSD C 1 · 37,000 people · 2019
Highest in the ZIP: 15.835 µg/L — HERCULANEUM PWS · 5,000 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 10.784 µg/L No EPA limit set Main supplier: JEFFERSON CO CONS PWSD C 1 · 37,000 people · 2019 | 2/3 | SYR4 |
| Chromium | 10.1475 µg/L 10% of the EPA limit 100 µg/L Highest in the ZIP: JEFFERSON COUNTY PWSD 7 · 6,100 people · 2017 | 1/3 | SYR4 |
| Monobromoacetic Acid | 9.48 µg/L No EPA limit set Highest in the ZIP: HERCULANEUM PWS · 5,000 people · 2019 | 1/3 | SYR4 |
| Trichloroacetic Acid | 5.1035 µg/L No EPA limit set Main supplier: JEFFERSON CO CONS PWSD C 1 · 37,000 people · 2019
Highest in the ZIP: 5.208 µg/L — HERCULANEUM PWS · 5,000 people · 2019 | 2/3 | SYR4 |
| Dibromoacetic Acid | 2.1695 µg/L No EPA limit set Main supplier: JEFFERSON CO CONS PWSD C 1 · 37,000 people · 2019
Highest in the ZIP: 4.777 µg/L — HERCULANEUM PWS · 5,000 people · 2019 | 2/3 | SYR4 |
| Bromoform | 3.66 µg/L No EPA limit set Highest in the ZIP: HERCULANEUM PWS · 5,000 people · 2019 | 2/3 | SYR4 |
| Arsenic | 2.11 µg/L 21% of the EPA limit 10 µg/L Highest in the ZIP: JEFFERSON COUNTY PWSD 7 · 6,100 people · 2017 | 1/3 | SYR4 |
| Combined Radium (-226 And -228) | 1.7 pCi/L 34% of the EPA limit 5 pCi/L Highest in the ZIP: JEFFERSON COUNTY PWSD 7 · 6,100 people · 2016 | 1/3 | SYR4 |
| Xylenes, Total | 1.3 µg/L 0% of the EPA limit 10000 µg/L Highest in the ZIP: JEFFERSON COUNTY PWSD 7 · 6,100 people · 2017 | 1/3 | SYR4 |
| Cadmium | 0.2780 µg/L 5.6% of the EPA limit 5 µg/L Highest in the ZIP: JEFFERSON COUNTY PWSD 7 · 6,100 people · 2017 | 1/3 | SYR4 |
| Pfba | 0.0091 µg/L No EPA limit set Highest in the ZIP: HERCULANEUM PWS · 5,000 people · 2024 | 1/3 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: JEFFERSON CO CONS PWSD C 1 · 37,000 people · 2025
Highest in the ZIP: 0.0039 mg/L — JEFFERSON COUNTY PWSD 7 · 6,100 people · 2023 | 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 63070
| Supplier | State | Population served |
|---|---|---|
| JEFFERSON CO CONS PWSD C 1 | MO | 37,000 |
| JEFFERSON COUNTY PWSD 7 | MO | 6,100 |
| HERCULANEUM PWS | MO | 5,000 |
Frequently asked questions about ZIP 63070 tap water
Is the tap water in ZIP 63070 safe to drink?
EPA testing detected 24 contaminants across the water suppliers serving ZIP 63070. 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 63070?
3 public water suppliers report EPA drinking-water monitoring for ZIP 63070. Each is listed above with its population served.
What contaminants are in ZIP 63070's water?
EPA monitoring detected Fluoride, Nitrate-Nitrite, Barium, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.