Caledonia Township, MI
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2026-2026). 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.
Caledonia Township at a glance
Caledonia Township serves about 4,573 people through 950 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Kent County, Michigan. EPA system ID: MI0001039; phone on file: 616-891-0070. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2026 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Caledonia Township is 0 ppb across 11 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2026 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2017 | 0 (not detected) |
How Caledonia Township compares
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. Caledonia Township's reported as 0 (not detected) sits at the 31st percentile in Michigan and the 34th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Kent County
42 other systems share Kent County; 22 of them have a higher latest lead result than Caledonia Township. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Grand Rapids | 306,901 | 6.98 ppb |
| Wyoming | 76,501 | 1.7 ppb |
| Plainfield Township | 42,271 | 1.5 ppb |
| Byron-Gaines Utility Authority | 37,464 | 1.6 ppb |
| Kentwood | 36,072 | 2.99 ppb |
| Grandville | 15,948 | 0 (not detected) |
| East Grand Rapids | 11,637 | 10.1 ppb |
| Ada Township | 7,584 | 0 (not detected) |
| Rockford | 7,160 | 0 (not detected) |
| Lowell | 4,150 | 0 (not detected) |
Next steps for Caledonia, MI
Look up your address in Caledonia Township'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 Caledonia Township whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1600 ppb (copper action level 1,300 ppb).
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.