Greenfield Pointe Subdivision, MI
Lead detected, under the action levels
Latest 90th-percentile lead: 2 ppb (monitoring period 2023-2023). 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.
Greenfield Pointe Subdivision at a glance
Greenfield Pointe Subdivision serves about 265 people through 98 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Livingston County, Michigan. EPA system ID: MI0002846; phone on file: 810-599-0267. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
The highest 90th-percentile result EPA holds for Greenfield Pointe Subdivision is 2 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 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. Greenfield Pointe Subdivision's 2 ppb sits at the 62nd percentile in Michigan and the 71st nationally (higher means more lead).
Other water systems in Livingston County
42 other systems share Livingston County; 14 of them have a higher latest lead result than Greenfield Pointe Subdivision. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Mhog Sewer & Water Authority | 17,046 | 1 ppb |
| Brighton, City Of | 10,210 | 1 ppb |
| Howell, City Of | 9,914 | 0 (not detected) |
| Livingston Community Water Authority | 4,152 | 6 ppb |
| Hartland Township | 3,022 | 5 ppb |
| Fowlerville, Village Of | 2,951 | 0 (not detected) |
| Pinckney, Village Of | 2,353 | 0 (not detected) |
| Oak Pointe | 2,000 | 1 ppb |
| Cidermill Crossings | 1,863 | 3 ppb |
| Fonda Lake Water Authority | 1,705 | 2 ppb |
Next steps for Brighton, MI
Test your own tap with a certified lab first-draw sample; Brighton, 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 Greenfield Pointe Subdivision whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1490 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. Systems that went over once often dip back under; here is what that means.