What was found in ZIP 50111
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 |
|---|---|---|---|
| Fluoride | 1725 µg/L 43% of the EPA limit 4000 µg/L Highest in the ZIP: GRIMES WATER SUPPLY · 17,809 people · 2019 | 2/4 | SYR4 |
| Nitrate | 1600 µg/L 16% of the EPA limit 10000 µg/L Highest in the ZIP: XENIA RWD (WOODWARD) · 3,465 people · 2019 | 2/4 | SYR4 |
| Barium | 937.74 µg/L 47% of the EPA limit 2000 µg/L Highest in the ZIP: XENIA RWD (WOODWARD) · 3,465 people · 2013 | 2/4 | SYR4 |
| Nitrite | 597 µg/L 60% of the EPA limit 1000 µg/L Highest in the ZIP: XENIA RWD (WOODWARD) · 3,465 people · 2019 | 1/4 | SYR4 |
| Copper | 173.5999999999998 µg/L 13% of the EPA limit 1300 µg/L Main supplier: JOHNSTON MUNICIPAL WATER SUPPLY · 24,897 people · 2019
Highest in the ZIP: 324.25 µg/L — GRIMES WATER SUPPLY · 17,809 people · 2019 | 4/4 | SYR4 |
| TTHM | 74.3 µg/L 93% of the EPA limit 80 µg/L Main supplier: JOHNSTON MUNICIPAL WATER SUPPLY · 24,897 people · 2019 | 4/4 | SYR4 |
| Chloroform | 49.2 µg/L No EPA limit set Main supplier: JOHNSTON MUNICIPAL WATER SUPPLY · 24,897 people · 2019 | 4/4 | SYR4 |
| Lithium | 33 µg/L No EPA limit set Main supplier: JOHNSTON MUNICIPAL WATER SUPPLY · 24,897 people · 2025 | 4/4 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 25.2 µg/L 42% of the EPA limit 60 µg/L Main supplier: JOHNSTON MUNICIPAL WATER SUPPLY · 24,897 people · 2019 | 4/4 | SYR4 |
| Bromodichloromethane | 19.595 µg/L No EPA limit set Main supplier: JOHNSTON MUNICIPAL WATER SUPPLY · 24,897 people · 2019 | 4/4 | SYR4 |
| Lead | 11.394999999999985 µg/L 76% of the EPA limit 15 µg/L Main supplier: JOHNSTON MUNICIPAL WATER SUPPLY · 24,897 people · 2019
Highest in the ZIP: 14.36 µg/L — XENIA RWD (WOODWARD) · 3,465 people · 2019 | 4/4 | SYR4 |
| Dichloroacetic Acid | 13.789999999999997 µg/L No EPA limit set Main supplier: JOHNSTON MUNICIPAL WATER SUPPLY · 24,897 people · 2019 | 4/4 | SYR4 |
| Dibromochloromethane | 11.4 µg/L No EPA limit set Main supplier: JOHNSTON MUNICIPAL WATER SUPPLY · 24,897 people · 2019 | 4/4 | SYR4 |
| Monochloroacetic Acid | 9.468999999999998 µg/L No EPA limit set Main supplier: JOHNSTON MUNICIPAL WATER SUPPLY · 24,897 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 5.725999999999999 µg/L No EPA limit set Main supplier: JOHNSTON MUNICIPAL WATER SUPPLY · 24,897 people · 2019
Highest in the ZIP: 8.25 µg/L — GRIMES WATER SUPPLY · 17,809 people · 2019 | 4/4 | SYR4 |
| Arsenic | 7.6 µg/L 76% of the EPA limit 10 µg/L Highest in the ZIP: XENIA RWD (WOODWARD) · 3,465 people · 2019 | 2/4 | SYR4 |
| Combined Radium (-226 And -228) | 4.469999999999998 pCi/L 89% of the EPA limit 5 pCi/L Highest in the ZIP: GRIMES WATER SUPPLY · 17,809 people · 2019 | 1/4 | SYR4 |
| Monobromoacetic Acid | 3.6575 µg/L No EPA limit set Main supplier: JOHNSTON MUNICIPAL WATER SUPPLY · 24,897 people · 2019 | 2/4 | SYR4 |
| Dibromoacetic Acid | 3.0300000000000002 µg/L No EPA limit set Main supplier: JOHNSTON MUNICIPAL WATER SUPPLY · 24,897 people · 2019
Highest in the ZIP: 3.49 µg/L — XENIA RWD (DES MOINES) · 12,860 people · 2019 | 4/4 | SYR4 |
| Bromoform | 3.1969999999999987 µg/L No EPA limit set Main supplier: JOHNSTON MUNICIPAL WATER SUPPLY · 24,897 people · 2019 | 3/4 | SYR4 |
| Dalapon | 0.6000 µg/L 0.3% of the EPA limit 200 µg/L Highest in the ZIP: GRIMES WATER SUPPLY · 17,809 people · 2017 | 1/4 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: JOHNSTON MUNICIPAL WATER SUPPLY · 24,897 people · 2025
Highest in the ZIP: 0.0014 mg/L — XENIA RWD (DES MOINES) · 12,860 people · 2023 | 4/4 | 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 50111
| Supplier | State | Population served |
|---|---|---|
| JOHNSTON MUNICIPAL WATER SUPPLY | IA | 24,897 |
| GRIMES WATER SUPPLY | IA | 17,809 |
| XENIA RWD (DES MOINES) | IA | 12,860 |
| XENIA RWD (WOODWARD) | IA | 3,465 |
Frequently asked questions about ZIP 50111 tap water
Is the tap water in ZIP 50111 safe to drink?
EPA testing detected 22 contaminants across the water suppliers serving ZIP 50111. 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 50111?
4 public water suppliers report EPA drinking-water monitoring for ZIP 50111. Each is listed above with its population served.
What contaminants are in ZIP 50111's water?
EPA monitoring detected Fluoride, Nitrate, Barium, Nitrite, Copper, and others across this ZIP's suppliers. The full list with levels and sources is above.