What was found in ZIP 51646
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 | 3809.9999999999964 µg/L 38% of the EPA limit 10000 µg/L Highest in the ZIP: CLARINDA WATER PLANT · 4,372 people · 2019 | 1/2 | SYR4 |
| Copper | 1240 µg/L 95% of the EPA limit 1300 µg/L Main supplier: SIRWA #2 (CRESTON) · 20,793 people · 2018 | 2/2 | SYR4 |
| Chlorite | 919 µg/L 92% of the EPA limit 1000 µg/L Highest in the ZIP: CLARINDA WATER PLANT · 4,372 people · 2019 | 1/2 | SYR4 |
| Fluoride | 700 µg/L 18% of the EPA limit 4000 µg/L Highest in the ZIP: CLARINDA WATER PLANT · 4,372 people · 2019 | 1/2 | SYR4 |
| Barium | 123 µg/L 6.2% of the EPA limit 2000 µg/L Highest in the ZIP: CLARINDA WATER PLANT · 4,372 people · 2012 | 1/2 | SYR4 |
| TTHM | 95.09999999999997 µg/L 119% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: SIRWA #2 (CRESTON) · 20,793 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 78.6 µg/L 131% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: SIRWA #2 (CRESTON) · 20,793 people · 2019 | 2/2 | SYR4 |
| Chloroform | 77.5 µg/L No EPA limit set Main supplier: SIRWA #2 (CRESTON) · 20,793 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 43.54999999999998 µg/L No EPA limit set Main supplier: SIRWA #2 (CRESTON) · 20,793 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 28.19999999999999 µg/L No EPA limit set Main supplier: SIRWA #2 (CRESTON) · 20,793 people · 2019 | 2/2 | SYR4 |
| Lead | 24.549999999999994 µg/L 164% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: SIRWA #2 (CRESTON) · 20,793 people · 2018 | 2/2 | SYR4 |
| Bromodichloromethane | 17 µg/L No EPA limit set Main supplier: SIRWA #2 (CRESTON) · 20,793 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 5 µg/L No EPA limit set Main supplier: SIRWA #2 (CRESTON) · 20,793 people · 2019
Highest in the ZIP: 13.519999999999998 µg/L — CLARINDA WATER PLANT · 4,372 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 5.8 µg/L No EPA limit set Main supplier: SIRWA #2 (CRESTON) · 20,793 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 2 µg/L No EPA limit set Main supplier: SIRWA #2 (CRESTON) · 20,793 people · 2019
Highest in the ZIP: 2.972 µg/L — CLARINDA WATER PLANT · 4,372 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 1 µg/L No EPA limit set Main supplier: SIRWA #2 (CRESTON) · 20,793 people · 2019
Highest in the ZIP: 2.33 µg/L — CLARINDA WATER PLANT · 4,372 people · 2019 | 2/2 | SYR4 |
| Bromoform | 0.7000 µg/L No EPA limit set Main supplier: SIRWA #2 (CRESTON) · 20,793 people · 2019
Highest in the ZIP: 0.8100 µg/L — CLARINDA WATER PLANT · 4,372 people · 2019 | 2/2 | SYR4 |
| Atrazine | 0.1380 µg/L 4.6% of the EPA limit 3 µg/L Highest in the ZIP: CLARINDA WATER PLANT · 4,372 people · 2018 | 1/2 | SYR4 |
| Pfba | 0.0082 µg/L No EPA limit set Highest in the ZIP: CLARINDA WATER PLANT · 4,372 people · 2025 | 1/2 | UCMR-5 |
| Lead | 0.0050 mg/L 33% of the EPA limit 0.0150 mg/L Main supplier: SIRWA #2 (CRESTON) · 20,793 people · 2024 | 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 51646
| Supplier | State | Population served |
|---|---|---|
| SIRWA #2 (CRESTON) | IA | 20,793 |
| CLARINDA WATER PLANT | IA | 4,372 |
Frequently asked questions about ZIP 51646 tap water
Is the tap water in ZIP 51646 safe to drink?
EPA testing detected 20 contaminants across the water suppliers serving ZIP 51646. 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 51646?
2 public water suppliers report EPA drinking-water monitoring for ZIP 51646. Each is listed above with its population served.
What contaminants are in ZIP 51646's water?
EPA monitoring detected Nitrate, Copper, Chlorite, Fluoride, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.