Gaddis Estates Hoa, IA
Lead detected, under the action levels
Latest 90th-percentile lead: 3 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 Gaddis Estates Hoa
Gaddis Estates Hoa serves about 220 people through 75 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Linn County, Iowa. EPA system ID: IA5731302; phone on file: 319-936-4189. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Gaddis Estates Hoa's lead record
That is down 11 ppb from 14 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Gaddis Estates Hoa is 14 ppb across 4 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 3 ppb |
| 2022 | 14 ppb over 10 |
| 2019 | 1 ppb |
| 2016 | 0 (not detected) |
How Gaddis Estates Hoa 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. Gaddis Estates Hoa's 3 ppb sits at the 75th percentile in Iowa and the 81st nationally (higher means more lead).
Nearby utilities
39 other systems share Linn County; 11 of them have a higher latest lead result than Gaddis Estates Hoa. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Cedar Rapids Water Department | 142,364 | 1.62 ppb |
| Marion Municipal Water Dept | 41,623 | 8.3 ppb |
| Hiawatha Water Dept | 7,183 | 0 (not detected) |
| Mount Vernon Water Supply | 4,527 | 1 ppb |
| Fairfax Water Supply | 2,828 | 2 ppb |
| Center Point Water Supply | 2,579 | 0 (not detected) |
| Ely Water Supply | 2,328 | 4 ppb |
| Lisbon Water Supply | 2,233 | 1.7 ppb |
| Palo Water Supply | 1,407 | 1.6 ppb |
| Central City Water Supply | 1,264 | 3 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Oxford, 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 Gaddis Estates Hoa 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.