Churdan Water Supply, IA
Exceeded the action level in the past
Latest 90th-percentile lead: 1.2 ppb (monitoring period 2022-2024). 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.
About Churdan Water Supply
Churdan Water Supply serves about 375 people through 164 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 Greene County, Iowa. EPA system ID: IA3709001; phone on file: 515-389-3334. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2022 (1.2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Churdan Water Supply is 28 ppb across 8 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 1.2 ppb |
| 2022 | 1.2 ppb |
| 2021 | 1.2 ppb |
| 2019 | 0 (not detected) |
| 2018 | 0.6 ppb |
| 2017 | 0 (not detected) |
| 2017 | 0 (not detected) |
| 2016 | 28 ppb over 15 |
How Churdan 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. Churdan Water Supply's 1.2 ppb sits at the 47th percentile in Iowa and the 59th nationally (higher means more lead).
Nearby utilities
3 other systems share Greene County; 1 of them has a higher latest lead result than Churdan Water Supply. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Jefferson Water Department | 4,182 | 0.8 ppb |
| Grand Jct Municipal Water Dept | 725 | 1 ppb |
| Scranton Water System | 511 | 17 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Churdan, 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 Churdan 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.