Frenchtown Township, MI
Lead detected, under the action levels
Latest 90th-percentile lead: 1.9 ppb (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. 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.
About Frenchtown Township
Frenchtown Township serves about 21,609 people through 6,339 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 Monroe County, Michigan. EPA system ID: MI0002500; phone on file: 734-242-3282. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2020 (1.3 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Frenchtown Township is 1.9 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 1.9 ppb |
| 2020 | 1.3 ppb |
| 2017 | 1 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. Frenchtown Township's 1.9 ppb sits at the 60th percentile in Michigan and the 69th nationally (higher means more lead).
Other water systems in Monroe County
9 other systems share Monroe County; 2 of them have a higher latest lead result than Frenchtown Township. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Monroe | 49,467 | 2 ppb |
| Monroe South County | 33,816 | 1 ppb |
| Berlin Township | 9,900 | 0 (not detected) |
| Ash Township | 5,959 | 7.6 ppb |
| Dundee | 5,400 | 0 (not detected) |
| South Rockwood | 1,587 | 0 (not detected) |
| Petersburg | 1,115 | 0 (not detected) |
| Whiteford Township | 303 | 0 (not detected) |
| Gilbert Mobile Home Park | 150 | - |
Next steps for Monroe, MI
Test your own tap with a certified lab first-draw sample; Monroe, 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 Frenchtown Township 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. Size matters more than most people expect: small vs large water systems.