What was found in ZIP 51351
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 | 1250 µg/L 13% of the EPA limit 10000 µg/L Highest in the ZIP: IOWA LAKES REGIONAL WATER · 6,755 people · 2019 | 2/3 | SYR4 |
| Copper | 570 µg/L 44% of the EPA limit 1300 µg/L Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2017 | 3/3 | SYR4 |
| Fluoride | 541.9999999999999 µg/L 14% of the EPA limit 4000 µg/L Highest in the ZIP: IOWA LAKES REGIONAL WATER · 6,755 people · 2019 | 2/3 | SYR4 |
| TTHM | 86.94999999999996 µg/L 109% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019 | 3/3 | SYR4 |
| Barium | 83.66 µg/L 4.2% of the EPA limit 2000 µg/L Highest in the ZIP: OSCEOLA RURAL WATER SYSTEM-NORTH · 7,002 people · 2016 | 1/3 | SYR4 |
| Chloroform | 50.69999999999999 µg/L No EPA limit set Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 32.859999999999985 µg/L 55% of the EPA limit 60 µg/L Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019
Highest in the ZIP: 41.41999999999999 µg/L — OSCEOLA RURAL WATER SYSTEM-NORTH · 7,002 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 6.75 µg/L No EPA limit set Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019
Highest in the ZIP: 24.548499999999997 µg/L — OSCEOLA RURAL WATER SYSTEM-NORTH · 7,002 people · 2019 | 2/3 | SYR4 |
| Lithium | 16 µg/L No EPA limit set Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2023
Highest in the ZIP: 23.3 µg/L — OSCEOLA RURAL WATER SYSTEM-NORTH · 7,002 people · 2023 | 2/3 | UCMR-5 |
| Xylenes, Total | 21.195 µg/L 0.2% of the EPA limit 10000 µg/L Highest in the ZIP: OSCEOLA RURAL WATER SYSTEM-NORTH · 7,002 people · 2018 | 1/3 | SYR4 |
| Bromodichloromethane | 19 µg/L No EPA limit set Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 13 µg/L No EPA limit set Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019
Highest in the ZIP: 16.099999999999998 µg/L — OSCEOLA RURAL WATER SYSTEM-NORTH · 7,002 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 13 µg/L No EPA limit set Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019 | 3/3 | SYR4 |
| Combined Uranium | 12.729999999999999 µg/L 42% of the EPA limit 30 µg/L Highest in the ZIP: OSCEOLA RURAL WATER SYSTEM-NORTH · 7,002 people · 2018 | 1/3 | SYR4 |
| Dibromochloromethane | 9.490999999999998 µg/L No EPA limit set Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019 | 3/3 | SYR4 |
| Lead | 4 µg/L 27% of the EPA limit 15 µg/L Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2017
Highest in the ZIP: 9.474999999999998 µg/L — OSCEOLA RURAL WATER SYSTEM-NORTH · 7,002 people · 2017 | 3/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 6.55 pCi/L 44% of the EPA limit 15 pCi/L Highest in the ZIP: OSCEOLA RURAL WATER SYSTEM-NORTH · 7,002 people · 2016 | 1/3 | SYR4 |
| Ethylbenzene | 4.8999999999999995 µg/L 0.7% of the EPA limit 700 µg/L Highest in the ZIP: OSCEOLA RURAL WATER SYSTEM-NORTH · 7,002 people · 2018 | 1/3 | SYR4 |
| Dibromoacetic Acid | 3 µg/L No EPA limit set Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019
Highest in the ZIP: 3.099999999999998 µg/L — OSCEOLA RURAL WATER SYSTEM-NORTH · 7,002 people · 2019 | 3/3 | SYR4 |
| Chromium | 2.02 µg/L 2% of the EPA limit 100 µg/L Highest in the ZIP: OSCEOLA RURAL WATER SYSTEM-NORTH · 7,002 people · 2016 | 1/3 | SYR4 |
| Arsenic | 1.875 µg/L 19% of the EPA limit 10 µg/L Highest in the ZIP: OSCEOLA RURAL WATER SYSTEM-NORTH · 7,002 people · 2016 | 1/3 | SYR4 |
| Bromoform | 1.5549999999999997 µg/L No EPA limit set Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2019
Highest in the ZIP: 1.675 µg/L — IOWA LAKES REGIONAL WATER · 6,755 people · 2019 | 3/3 | SYR4 |
| Combined Radium (-226 And -228) | 1.5750000000000002 pCi/L 32% of the EPA limit 5 pCi/L Highest in the ZIP: OSCEOLA RURAL WATER SYSTEM-NORTH · 7,002 people · 2018 | 1/3 | SYR4 |
| Selenium | 0.6000 µg/L 1.2% of the EPA limit 50 µg/L Highest in the ZIP: OSCEOLA RURAL WATER SYSTEM-NORTH · 7,002 people · 2016 | 1/3 | SYR4 |
| Antimony, Total | 0.1000 µg/L 1.7% of the EPA limit 6 µg/L Highest in the ZIP: OSCEOLA RURAL WATER SYSTEM-NORTH · 7,002 people · 2016 | 1/3 | SYR4 |
| Pfba | 0.0050 µg/L No EPA limit set Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2023 | 1/3 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: IOWA LAKES REGIONAL WATER - OSGOOD · 9,021 people · 2025
Highest in the ZIP: 0.0049 mg/L — OSCEOLA RURAL WATER SYSTEM-NORTH · 7,002 people · 2024 | 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 51351
| Supplier | State | Population served |
|---|---|---|
| IOWA LAKES REGIONAL WATER - OSGOOD | IA | 9,021 |
| OSCEOLA RURAL WATER SYSTEM-NORTH | IA | 7,002 |
| IOWA LAKES REGIONAL WATER | IA | 6,755 |
Frequently asked questions about ZIP 51351 tap water
Is the tap water in ZIP 51351 safe to drink?
EPA testing detected 27 contaminants across the water suppliers serving ZIP 51351. 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 51351?
3 public water suppliers report EPA drinking-water monitoring for ZIP 51351. Each is listed above with its population served.
What contaminants are in ZIP 51351's water?
EPA monitoring detected Nitrate, Copper, Fluoride, TTHM, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.