Marble Lake Resort & Marina, MI
Lead detected, under the action levels
Latest 90th-percentile lead: 3 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.
Who runs the water here
Marble Lake Resort & Marina serves about 72 people through 29 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Branch County, Michigan. EPA system ID: MI0040071; phone on file: 517-639-4604. They can tell you what your service line is made of and whether they pay to replace it.
Marble Lake Resort & Marina's lead record
The highest 90th-percentile result EPA holds for Marble Lake Resort & Marina is 3 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 3 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. Marble Lake Resort & Marina's 3 ppb sits at the 75th percentile in Michigan and the 81st nationally (higher means more lead).
Nearby utilities
11 other systems share Branch County; 1 of them has a higher latest lead result than Marble Lake Resort & Marina. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Coldwater | 13,822 | 8.5 ppb |
| Bronson | 2,421 | 2 ppb |
| Union City | 1,630 | 0 (not detected) |
| Quincy | 1,544 | 1.7 ppb |
| Lakeside Estates Subdivision | 125 | - |
| Arbor View | 100 | 0 (not detected) |
| Avra Estates | 87 | 2 ppb |
| Cambridge Village | 80 | 1 ppb |
| Somerset Mobile Home Park | 64 | 0 (not detected) |
| Countryside Mobile Court | 60 | 2 ppb |
Next steps for Quincy, MI
Test your own tap with a certified lab first-draw sample; Quincy, 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 Marble Lake Resort & Marina 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.