Maynard Water Supply, IA
Lead detected, under the action levels
Latest 90th-percentile lead: 0.6 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. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
About Maynard Water Supply
Maynard Water Supply serves about 476 people through 250 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 Fayette County, Iowa. EPA system ID: IA3350059; phone on file: 319-238-1321. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Maynard Water Supply's lead record
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Maynard Water Supply is 0.6 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.6 ppb |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 0 (not detected) |
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. Maynard Water Supply's 0.6 ppb sits at the 35th percentile in Iowa and the 45th nationally (higher means more lead).
Neighbouring systems
10 other systems share Fayette County; 9 of them have a higher latest lead result than Maynard Water Supply. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Oelwein Municipal Water Works | 5,920 | 4.17 ppb |
| West Union Water Supply | 2,540 | 3 ppb |
| Fayette Water Supply | 1,256 | 4.5 ppb |
| Elgin Municipal Water Supply | 685 | 8.5 ppb |
| Clermont Water Supply | 586 | 6.8 ppb |
| Hawkeye Water Supply | 438 | 0.8 ppb |
| Arlington Water Supply | 419 | 0 (not detected) |
| Waucoma Water Supply | 229 | 9.6 ppb |
| Wadena Water System | 209 | 0.8 ppb |
| Westgate Water Supply | 192 | 4.2 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Maynard, 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 Maynard 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. 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.