Wyoming, MI
Lead detected, under the action levels
Latest 90th-percentile lead: 1.7 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.
Wyoming at a glance
Wyoming serves about 76,501 people through 23,407 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Kent County, Michigan. EPA system ID: MI0007220; phone on file: 616-261-3572. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2022 (1.8 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Wyoming is 3.2 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.7 ppb |
| 2022 | 1.8 ppb |
| 2019 | 2.1 ppb |
| 2016 | 3.2 ppb |
Against other Michigan systems
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. Wyoming's 1.7 ppb sits at the 59th percentile in Michigan and the 67th nationally (higher means more lead).
Other water systems in Kent County
42 other systems share Kent County; 14 of them have a higher latest lead result than Wyoming. 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 |
| 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) |
| Caledonia Township | 4,573 | 0 (not detected) |
| Lowell | 4,150 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Holland, MI 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 Wyoming 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. The action level is dropping - the 10 ppb rule from 2027.