Rowan Muni Water Supply, IA
Exceeded the action level in the past
Latest 90th-percentile lead: 1.4 ppb (monitoring period 2023-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Rowan Muni Water Supply at a glance
Rowan Muni Water Supply serves about 124 people through 91 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Wright County, Iowa. EPA system ID: IA9958004; phone on file: 641-430-1410. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
That is down 8.6 ppb from 10 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Rowan Muni Water Supply is 16 ppb across 7 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.4 ppb |
| 2022 | 10 ppb |
| 2021 | 10 ppb |
| 2020 | 7 ppb |
| 2020 | 4 ppb |
| 2019 | 16 ppb over 15 |
| 2016 | 0 (not detected) |
How Rowan Muni Water Supply compares
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. Rowan Muni Water Supply's 1.4 ppb sits at the 50th percentile in Iowa and the 62nd nationally (higher means more lead).
Nearby utilities
6 other systems share Wright County; 3 of them have a higher latest lead result than Rowan Muni Water Supply. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Eagle Grove Water Supply | 3,601 | 0 (not detected) |
| Clarion Water Supply | 2,810 | 6 ppb |
| Belmond Water Supply | 2,463 | 0 (not detected) |
| Goldfield Water Supply | 634 | 2 ppb |
| Dows Water Supply | 526 | 0 (not detected) |
| Woolstock Water Supply | 144 | 2 ppb |
Next steps for Manly, IA
Test your own tap with a certified lab first-draw sample; Manly, IA may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Rowan Muni Water Supply whether it covers that cost before hiring anyone - many utilities now do.
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. What a 90th-percentile result does and does not tell you: how to read a lead result. More in what a past exceedance means today.