What was found in ZIP 40078
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 |
|---|---|---|---|
| Copper | 888.8 µg/L 68% of the EPA limit 1300 µg/L Main supplier: SPRINGFIELD WATER WORKS · 13,205 people · 2019 | 2/2 | SYR4 |
| Fluoride | 800 µg/L 20% of the EPA limit 4000 µg/L Main supplier: SPRINGFIELD WATER WORKS · 13,205 people · 2019 | 1/2 | SYR4 |
| Nitrate | 700 µg/L 7% of the EPA limit 10000 µg/L Main supplier: SPRINGFIELD WATER WORKS · 13,205 people · 2019 | 1/2 | SYR4 |
| TTHM | 101.55 µg/L 127% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: SPRINGFIELD WATER WORKS · 13,205 people · 2019
Highest in the ZIP: 103.7 µg/L — NORTH MERCER WATER DISTRICT · 9,775 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 63 µg/L 105% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: SPRINGFIELD WATER WORKS · 13,205 people · 2019
Highest in the ZIP: 81.125 µg/L — NORTH MERCER WATER DISTRICT · 9,775 people · 2019 | 2/2 | SYR4 |
| Lead | 27.4 µg/L 183% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: SPRINGFIELD WATER WORKS · 13,205 people · 2019 | 2/2 | SYR4 |
| Barium | 6.65 µg/L 0.3% of the EPA limit 2000 µg/L Main supplier: SPRINGFIELD WATER WORKS · 13,205 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 2.735 pCi/L 55% of the EPA limit 5 pCi/L Main supplier: SPRINGFIELD WATER WORKS · 13,205 people · 2017 | 1/2 | SYR4 |
| Arsenic | 0.5850 µg/L 5.9% of the EPA limit 10 µg/L Main supplier: SPRINGFIELD WATER WORKS · 13,205 people · 2019 | 1/2 | SYR4 |
| 6:2 Fts | 0.0108 µg/L No EPA limit set Highest in the ZIP: NORTH MERCER WATER DISTRICT · 9,775 people · 2025 | 1/2 | UCMR-5 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: SPRINGFIELD WATER WORKS · 13,205 people · 2025
Highest in the ZIP: 0.0040 mg/L — NORTH MERCER WATER DISTRICT · 9,775 people · 2024 | 2/2 | LCR |
| Pfpea | 0.0033 µg/L No EPA limit set Highest in the ZIP: NORTH MERCER WATER DISTRICT · 9,775 people · 2025 | 1/2 | UCMR-5 |
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 40078
| Supplier | State | Population served |
|---|---|---|
| SPRINGFIELD WATER WORKS | KY | 13,205 |
| NORTH MERCER WATER DISTRICT | KY | 9,775 |
Frequently asked questions about ZIP 40078 tap water
Is the tap water in ZIP 40078 safe to drink?
EPA testing detected 12 contaminants across the water suppliers serving ZIP 40078. 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 40078?
2 public water suppliers report EPA drinking-water monitoring for ZIP 40078. Each is listed above with its population served.
What contaminants are in ZIP 40078's water?
EPA monitoring detected Copper, Fluoride, Nitrate, TTHM, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.