River Ridge Hoa, IA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Who runs the water here
River Ridge Hoa serves about 60 people through 38 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Buchanan County, Iowa. EPA system ID: IA1037302; phone on file: 319-334-0120. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2021 (0.8 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for River Ridge Hoa is 3.2 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 0.8 ppb |
| 2018 | 3.2 ppb |
Against other Iowa systems
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. River Ridge Hoa's reported as 0 (not detected) sits at the 2nd percentile in Iowa and the 5th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
9 other systems share Buchanan County; 8 of them have a higher latest lead result than River Ridge Hoa. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Independence Water Dept | 6,064 | 7.1 ppb |
| Jesup Municipal Water Supply | 2,508 | 1.7 ppb |
| Fairbank Water Supply | 1,111 | 1.6 ppb |
| Winthrop Water Supply | 840 | 3.5 ppb |
| Hazleton Water Supply | 713 | 1.45 ppb |
| Lamont Water Supply | 429 | 13 ppb |
| Brandon Water Supply | 341 | 3.2 ppb |
| Hazleton Mobile Home Park | 150 | 0 (not detected) |
| Pints Water Association | 96 | 13.1 ppb |
Next steps for Independence, IA
Look up your address in River Ridge Hoa's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask River Ridge 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. The lead result guide covers how utilities pick the homes they sample. Small systems behave differently: why small systems go over more often.