Riverwalk Development, MI
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2021-2023). 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
Riverwalk Development serves about 137 people through 65 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Allegan County, Michigan. EPA system ID: MI0005712; phone on file: 269-751-5158. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2020 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Riverwalk Development is 1 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2017 | 0 (not detected) |
| 2016 | 1 ppb |
Where this result ranks
Of the 1,227 Michigan systems with a lead result, the median latest reading is 1 ppb; 31 are over 15 ppb right now and 109 have gone over at some point. Riverwalk Development's reported as 0 (not detected) sits at the 11th percentile in Michigan and the 12th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
44 other systems share Allegan County; 24 of them have a higher latest lead result than Riverwalk Development. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Allegan | 5,930 | 1.5 ppb |
| Kalamazoo Lake Sewer & Water Authority | 5,000 | 1.96 ppb |
| Wayland | 4,435 | 2.46 ppb |
| Otsego | 4,120 | 0 (not detected) |
| Plainwell | 3,998 | 4 ppb |
| Fennville | 2,438 | - |
| Lake Doster | 1,492 | 0 (not detected) |
| Otsego Township | 1,133 | - |
| Martin | 785 | 0 (not detected) |
| Hunters Glen | 700 | - |
What to do in your house
Look up your address in Riverwalk Development'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 Riverwalk Development 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. Small systems behave differently: why small systems go over more often.