Rockford, MI
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2025-2025). 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
Rockford serves about 7,160 people through 2,521 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: MI0005730; phone on file: 616-866-1537. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2024 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Rockford is 1.78 ppb across 8 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2022 | 0.86 ppb |
| 2021 | 1.7 ppb |
| 2020 | 0 (not detected) |
| 2019 | 1.78 ppb |
| 2016 | 0 (not detected) |
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. Rockford's reported as 0 (not detected) sits at the 32nd percentile in Michigan and the 36th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
42 other systems share Kent County; 22 of them have a higher latest lead result than Rockford. 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) |
| Caledonia Township | 4,573 | 0 (not detected) |
| Lowell | 4,150 | 0 (not detected) |
What to do in your house
Look up your address in Rockford'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 Rockford 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. A zero today does not rule out a jump later - the rules are tightening in 2027.