Hidden Hamlet Association, MI
Above the federal action level
Latest 90th-percentile lead: 55 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. 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.
About Hidden Hamlet Association
Hidden Hamlet Association serves about 465 people through 155 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Emmet County, Michigan. EPA system ID: MI0003132; phone on file: 248-342-6029. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
The highest 90th-percentile result EPA holds for Hidden Hamlet Association is 55 ppb across 1 monitoring period, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 55 ppb over 15 |
How Hidden Hamlet Association 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. Hidden Hamlet Association's 55 ppb sits at the 100th percentile in Michigan and the 100th nationally (higher means more lead).
Neighbouring systems
37 other systems share Emmet County; 0 of them have a higher latest lead result than Hidden Hamlet Association. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Petoskey, City Of | 8,979 | 2 ppb |
| Birchwood Farms | 1,227 | 2.8 ppb |
| Harbor Springs, City Of | 1,194 | 2 ppb |
| Little Traverse Township | 1,102 | 1.2 ppb |
| Bay View Association | 831 | 4.5 ppb |
| Trout Creek Condominiums | 492 | 8 ppb |
| Highlands At Harbor Springs | 450 | 5 ppb |
| West Traverse Township | 414 | 1 ppb |
| L'Arbre Croche Club | 330 | 0 (not detected) |
| Harbor Springs Area Authority | 303 | 4 ppb |
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 Hidden Hamlet Association 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Size matters more than most people expect: small vs large water systems.