What was found in ZIP 52002
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 | 1500 µg/L 15% of the EPA limit 10000 µg/L Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2019 | 2/2 | 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: 881.5 µg/L — ASBURY MUNICIPAL WATER SYSTEM · 5,943 people · 2018 | 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 |
| 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: 145.03 µg/L — ASBURY MUNICIPAL WATER SYSTEM · 5,943 people · 2019 | 2/2 | SYR4 |
| Lithium | 69 µg/L No EPA limit set Highest in the ZIP: ASBURY MUNICIPAL WATER SYSTEM · 5,943 people · 2024 | 1/2 | UCMR-5 |
| TTHM | 57 µg/L 71% of the EPA limit 80 µg/L Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2019 | 2/2 | SYR4 |
| Chloroform | 39 µg/L No EPA limit set Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2019 | 1/2 | 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 | 1/2 | 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 | 2/2 | SYR4 |
| Bromoform | 1 µg/L No EPA limit set Main supplier: DUBUQUE WATER WORKS · 59,667 people · 2019
Highest in the ZIP: 4.62 µg/L — ASBURY MUNICIPAL WATER SYSTEM · 5,943 people · 2019 | 2/2 | SYR4 |
| Combined Radium (-226 And -228) | 4.575 pCi/L 92% of the EPA limit 5 pCi/L Highest in the ZIP: ASBURY MUNICIPAL WATER SYSTEM · 5,943 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 |
| Selenium | 2.58 µg/L 5.2% of the EPA limit 50 µg/L Highest in the ZIP: ASBURY MUNICIPAL WATER SYSTEM · 5,943 people · 2019 | 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 |
| Arsenic | 1.2 µg/L 12% of the EPA limit 10 µg/L Highest in the ZIP: ASBURY MUNICIPAL WATER SYSTEM · 5,943 people · 2019 | 1/2 | 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 52002
| Supplier | State | Population served |
|---|---|---|
| DUBUQUE WATER WORKS | IA | 59,667 |
| ASBURY MUNICIPAL WATER SYSTEM | IA | 5,943 |
Frequently asked questions about ZIP 52002 tap water
Is the tap water in ZIP 52002 safe to drink?
EPA testing detected 22 contaminants across the water suppliers serving ZIP 52002. 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 52002?
2 public water suppliers report EPA drinking-water monitoring for ZIP 52002. Each is listed above with its population served.
What contaminants are in ZIP 52002's water?
EPA monitoring detected Nitrate, Copper, Fluoride, Barium, Lithium, and others across this ZIP's suppliers. The full list with levels and sources is above.