Joice Water Supply, IA
Exceeded the action level in the past
Latest 90th-percentile lead: 2 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.
Joice Water Supply at a glance
Joice Water Supply serves about 208 people through 109 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 Worth County, Iowa. EPA system ID: IA9835001; phone on file: 641-588-3440. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Joice Water Supply's lead record
Against the period ending 2022 (2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Joice Water Supply is 80 ppb across 9 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2 ppb |
| 2022 | 2 ppb |
| 2021 | 2 ppb |
| 2020 | 5 ppb |
| 2020 | 0 (not detected) |
| 2019 | 80 ppb over 15 |
| 2018 | 12 ppb over 10 |
| 2017 | 3 ppb |
| 2016 | 2 ppb |
How Joice 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. Joice Water Supply's 2 ppb sits at the 61st percentile in Iowa and the 70th nationally (higher means more lead).
Neighbouring systems
6 other systems share Worth County; 1 of them has a higher latest lead result than Joice Water Supply. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Northwood Waterworks | 2,072 | 0 (not detected) |
| Manly Water Supply | 1,266 | 2 ppb |
| Fertile Municipal Water | 306 | 4 ppb |
| Kensett Water Supply | 257 | 0 (not detected) |
| Grafton Water Supply | 218 | 2 ppb |
| Hanlontown Water Supply System | 206 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Lake Mills, 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 Joice 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. The lead result guide covers how utilities pick the homes they sample. Why an old exceedance still matters: over the limit before, under it now.