Shorewood Hills Subdivision, MI
Above the federal action level
Latest 90th-percentile lead: 16 ppb (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. In the most recent monitoring period, more than 10% of the sampled homes measured above 15 ppb. Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking now, and test your own tap.
Shorewood Hills Subdivision at a glance
Shorewood Hills Subdivision serves about 256 people through 73 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Oakland County, Michigan. EPA system ID: MI0006070. Ask the utility on your bill for your address in their service line inventory.
Shorewood Hills Subdivision's lead record
That is down 2 ppb from 18 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Shorewood Hills Subdivision is 18 ppb across 4 monitoring periods, 2 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 16 ppb over 15 |
| 2024 | 18 ppb over 15 |
| 2021 | 2 ppb |
| 2018 | 5 ppb |
How Shorewood Hills Subdivision 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. Shorewood Hills Subdivision's 16 ppb sits at the 98th percentile in Michigan and the 99th nationally (higher means more lead).
Other water systems in Oakland County
105 other systems share Oakland County; 1 of them has a higher latest lead result than Shorewood Hills Subdivision. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Troy | 85,854 | 0 (not detected) |
| Rochester Hills | 74,000 | 1.3 ppb |
| Waterford Township | 73,441 | 1 ppb |
| Southfield | 71,739 | 0 (not detected) |
| Pontiac | 63,776 | 1.6 ppb |
| Royal Oak, City Of | 57,236 | 4 ppb |
| Farmington Hills, City Of | 56,984 | 0 (not detected) |
| Novi, City Of | 56,780 | 0 (not detected) |
| West Bloomfield Township | 49,479 | 0 (not detected) |
| Bloomfield Township | 41,691 | 0 (not detected) |
What to do in your house
Use a filter certified to NSF/ANSI 53 for lead on the tap you drink and cook from, now, before you test. Then test your own tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Shorewood Hills Subdivision whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 2100 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. What a 90th-percentile result does and does not tell you: how to read a lead result. The action level is dropping - the 10 ppb rule from 2027.