Greenwood Acres Water Co., IA
Above the federal action level
Latest 90th-percentile lead: 25 ppb (monitoring period 2026-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. In the most recent monitoring period, more than 10% of the sampled homes measured above 15 ppb. Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking now, and test your own tap.
Who runs the water here
Greenwood Acres Water Co. serves about 325 people through 131 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws surface water, in Polk County, Iowa. EPA system ID: IA7709395; phone on file: 515-289-2345. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
That is up 13 ppb from 12 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Greenwood Acres Water Co. is 25.3 ppb across 13 monitoring periods, 4 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 25 ppb over 15 |
| 2025 | 12 ppb over 10 |
| 2025 | 23 ppb over 15 |
| 2024 | 25.3 ppb over 15 |
| 2023 | 3 ppb |
| 2023 | 12.4 ppb over 10 |
| 2022 | 21.7 ppb over 15 |
| 2021 | 7.2 ppb |
| 2020 | 11 ppb over 10 |
| 2020 | 14.5 ppb over 10 |
| 2019 | 1.9 ppb |
| 2019 | 1.6 ppb |
| 2018 | 3.7 ppb |
Where this result ranks
Of the 1,066 Iowa systems with a lead result, the median latest reading is 1.4 ppb; 4 are over 15 ppb right now and 36 have gone over at some point. Greenwood Acres Water Co.'s 25 ppb sits at the 100th percentile in Iowa and the 99th nationally (higher means more lead).
Neighbouring systems
34 other systems share Polk County; 0 of them have a higher latest lead result than Greenwood Acres Water Co.. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Des Moines Water Works | 246,055 | 0 (not detected) |
| Ankeny, City Of | 76,207 | 0 (not detected) |
| Urbandale Water Utility | 45,605 | 0 (not detected) |
| Johnston Municipal Water Supply | 24,897 | 0 (not detected) |
| Altoona Water Supply | 22,436 | 5.6 ppb |
| Clive Water Department | 20,277 | 0 (not detected) |
| Grimes Water Supply | 17,997 | 0 (not detected) |
| Bondurant Muni Water Supply | 9,393 | 1.3 ppb |
| Southeast Polk Rwd | 7,565 | 0 (not detected) |
| Polk City Water Supply | 6,533 | 1.3 ppb |
What to do in your house
Use a filter certified to NSF/ANSI 53 for lead on the tap you drink and cook from, now, before you test. Then test your own tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Greenwood Acres Water Co. whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1850 ppb (copper action level 1,300 ppb).
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. Why sampled homes are the worst-case ones is in the guide to reading the number. The action level is dropping - the 10 ppb rule from 2027.