What was found in ZIP 52001
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 |
|---|---|---|---|
| Nitrate-Nitrite | 6779 µg/L 68% of the EPA limit 10000 µg/L Highest in the ZIP: CLARK COUNTY CONS PWSD 1 · 7,140 people · 2019 | 1/2 | SYR4 |
| Nitrate | 1500 µg/L 15% of the EPA limit 10000 µg/L Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2019 | 1/2 | SYR4 |
| Copper | 44.995 µg/L 3.5% of the EPA limit 1300 µg/L Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2019
Highest in the ZIP: 642.4 µg/L — CLARK COUNTY CONS PWSD 1 · 7,140 people · 2017 | 2/2 | SYR4 |
| Fluoride | 600 µg/L 15% of the EPA limit 4000 µg/L Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2012 | 2/2 | SYR4 |
| TTHM | 57 µg/L 71% of the EPA limit 80 µg/L Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2019 | 2/2 | SYR4 |
| Barium | 20.1 µg/L 1% of the EPA limit 2000 µg/L Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2012
Highest in the ZIP: 54.07 µg/L — CLARK COUNTY CONS PWSD 1 · 7,140 people · 2017 | 2/2 | SYR4 |
| Chloroform | 39 µg/L No EPA limit set Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 18.295 µg/L 30% of the EPA limit 60 µg/L Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2019 | 1/2 | SYR4 |
| Lead | 17.28 µg/L 115% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 13 µg/L No EPA limit set Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 11.78 µg/L No EPA limit set Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 6.304 µg/L No EPA limit set Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 5.535 µg/L No EPA limit set Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 4.7095 µg/L No EPA limit set Highest in the ZIP: CLARK COUNTY CONS PWSD 1 · 7,140 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 3.148 µg/L No EPA limit set Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2019 | 2/2 | SYR4 |
| Chromium | 3.0075 µg/L 3% of the EPA limit 100 µg/L Highest in the ZIP: CLARK COUNTY CONS PWSD 1 · 7,140 people · 2017 | 1/2 | SYR4 |
| Dibromoacetic Acid | 2.08 µg/L No EPA limit set Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2019 | 2/2 | SYR4 |
| Bromoform | 1 µg/L No EPA limit set Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2019 | 2/2 | SYR4 |
| Pfba | 0.0130 µg/L No EPA limit set Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2024 | 1/2 | UCMR-5 |
| PFOA | 0.0051 µg/L No EPA limit set Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2024 | 1/2 | UCMR-5 |
| Lead | 0.0050 mg/L 33% of the EPA limit 0.0150 mg/L Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2023 | 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 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 52001
| Supplier | State | Population served |
|---|---|---|
| DUBUQUE WATER WORKS | IA | 59,667 |
| CLARK COUNTY CONS PWSD 1 | MO | 7,140 |
Frequently asked questions about ZIP 52001 tap water
Is the tap water in ZIP 52001 safe to drink?
EPA testing detected 21 contaminants across the water suppliers serving ZIP 52001. 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 52001?
2 public water suppliers report EPA drinking-water monitoring for ZIP 52001. Each is listed above with its population served.
What contaminants are in ZIP 52001's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Copper, Fluoride, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.