What was found in Ankeny's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 4986.5 µg/L 50% of the EPA limit 10000 µg/L Main supplier: ANKENY, CITY OF · 76,207 people · 2019 | 1/5 | SYR4 |
| Copper | 50 µg/L 3.8% of the EPA limit 1300 µg/L Main supplier: ANKENY, CITY OF · 76,207 people · 2019
Highest in the city: 2262 µg/L — GREENWOOD ACRES WATER CO. · 325 people · 2019 | 5/5 | SYR4 |
| Fluoride | 1010 µg/L 25% of the EPA limit 4000 µg/L Main supplier: ANKENY, CITY OF · 76,207 people · 2013 | 1/5 | SYR4 |
| TTHM | 86.045 µg/L 108% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: ANKENY, CITY OF · 76,207 people · 2019
Highest in the city: 90.38 µg/L — AUTUMN RIDGE ESTATES MHP · 1,032 people · 2019 | 5/5 | SYR4 |
| Chloroform | 49.95 µg/L No EPA limit set Main supplier: ANKENY, CITY OF · 76,207 people · 2019
Highest in the city: 57.54 µg/L — AUTUMN RIDGE ESTATES MHP · 1,032 people · 2019 | 5/5 | SYR4 |
| Lithium | 28 µg/L No EPA limit set Main supplier: ANKENY, CITY OF · 76,207 people · 2024 | 1/5 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 15.6 µg/L 26% of the EPA limit 60 µg/L Main supplier: ANKENY, CITY OF · 76,207 people · 2019
Highest in the city: 23.53 µg/L — AUTUMN RIDGE ESTATES MHP · 1,032 people · 2019 | 5/5 | SYR4 |
| Bromodichloromethane | 20.72 µg/L No EPA limit set Main supplier: ANKENY, CITY OF · 76,207 people · 2019
Highest in the city: 21.66 µg/L — AUTUMN RIDGE ESTATES MHP · 1,032 people · 2019 | 4/5 | SYR4 |
| Dichloroacetic Acid | 10 µg/L No EPA limit set Main supplier: ANKENY, CITY OF · 76,207 people · 2019
Highest in the city: 16.03 µg/L — AUTUMN RIDGE ESTATES MHP · 1,032 people · 2019 | 5/5 | SYR4 |
| Dibromochloromethane | 13.385 µg/L No EPA limit set Main supplier: ANKENY, CITY OF · 76,207 people · 2019 | 4/5 | SYR4 |
| Monochloroacetic Acid | 2.8 µg/L No EPA limit set Main supplier: ANKENY, CITY OF · 76,207 people · 2019
Highest in the city: 12.544 µg/L — AUTUMN RIDGE ESTATES MHP · 1,032 people · 2019 | 5/5 | SYR4 |
| Lead | 10 µg/L 67% of the EPA limit 15 µg/L Main supplier: ANKENY, CITY OF · 76,207 people · 2019
Highest in the city: 10.74 µg/L — GREENWOOD ACRES WATER CO. · 325 people · 2019 | 4/5 | SYR4 |
| Bromoform | 6 µg/L No EPA limit set Main supplier: ANKENY, CITY OF · 76,207 people · 2019 | 3/5 | SYR4 |
| Trichloroacetic Acid | 5 µg/L No EPA limit set Main supplier: ANKENY, CITY OF · 76,207 people · 2019 | 5/5 | SYR4 |
| Dibromoacetic Acid | 3 µg/L No EPA limit set Main supplier: ANKENY, CITY OF · 76,207 people · 2019
Highest in the city: 3.354 µg/L — OAKWOOD PARK WATER INC. · 218 people · 2019 | 5/5 | SYR4 |
| Combined Radium (-226 And -228) | 1.4 pCi/L 28% of the EPA limit 5 pCi/L Main supplier: ANKENY, CITY OF · 76,207 people · 2017 | 1/5 | SYR4 |
| Arsenic | 1 µg/L 10% of the EPA limit 10 µg/L Main supplier: ANKENY, CITY OF · 76,207 people · 2019 | 1/5 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: ANKENY, CITY OF · 76,207 people · 2025
Highest in the city: 0.0120 mg/L — GREENWOOD ACRES WATER CO. · 325 people · 2025 | 5/5 | 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.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Ankeny
| Supplier | Population served |
|---|---|
| ANKENY, CITY OF | 76,207 |
| AUTUMN RIDGE ESTATES MHP | 1,032 |
| HICKORY HOLLOW WATER SERVICE, INC. | 375 |
| GREENWOOD ACRES WATER CO. | 325 |
| OAKWOOD PARK WATER INC. | 218 |
Frequently asked questions about Ankeny tap water
Is Ankeny tap water safe to drink?
EPA testing detected 18 contaminants in the water serving Ankeny. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Ankeny?
5 public water suppliers report drinking-water monitoring for Ankeny, Iowa to the EPA. Each is listed above with its population served.
What contaminants are in Ankeny's water?
The contaminants EPA monitoring detected in Ankeny include Nitrate, Copper, Fluoride, TTHM, Chloroform. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.