Lake Fifteen
Montmorency County, Michigan90 acresView mapDirections
No nutrient or algae sampling on record from EGLE for this lake.
- Impaired · Mercury
- 55 ft max depth
- Public access
Lake Fifteen in Montmorency County, Michigan has water-quality measurements published by EGLE, shown here as reported. Maximum depth: 55 ft. Surface area: 90.3 acres.
Water clarity at Lake Fifteen
Clear water. Across summers from 2018 to 2023, Lake Fifteen averaged 4.26 m (14 ft) of visibility down into the water, so you can typically see several feet down in midsummer.
Nobody has taken a water sample here that we can find. Michigan's environmental agency measures clarity on lakes like this one from satellite images instead, which is why this page reports how clear the water is and no phosphorus or algae readings.
Clear is not the same as clean. A lake can be easy to see through and still carry high nutrient levels, and a naturally tea-stained lake can be perfectly healthy. The nutrient and algae readings on other lakes come from phosphorus and chlorophyll-a measured in a laboratory, and clarity alone cannot stand in for them.
The same satellite images put summer algae here at roughly 2.86 micrograms per litre. Estimating algae from orbit is far less exact than measuring clarity, so that figure is worth knowing and is not part of any rating.
Lake Fifteen is a 90-acre lake in Montmorency County, Michigan with a maximum depth of 55 feet (10-foot average). Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, EGLE. Methodology: how these readings are compared.
What Lake Fifteen is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Deep water55 ft surveyed max depth
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Lake Fifteen is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Whether Lake Fifteen is safe to swim in today is a call for the Michigan Department of Environment, Great Lakes, and Energy (EGLE) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Fifteen
These are the measurements EGLE publishes for Lake Fifteen, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about Lake Fifteen
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
55 ft
Average depth
10 ft
Surface area
90 acres
Shoreline
1.1 mi
Public access
Yes
Listed by EGLE
Recreation & Access
- Lake FifteenPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Lake Fifteen
Compare lakeside cabins, hotels, and vacation rentals near Lake Fifteen in Montmorency County, Michigan — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Lake Fifteen
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Follow Lake Fifteen’s readings
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Fishing Lake Fifteen
EPA Impairment Status
Lake Fifteen is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Fish consumption.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MI040700060302-04 · Official waterbody report
Nearby Lakes in Montmorency County
Frequently asked questions about Lake Fifteen
Where is Lake Fifteen?
- Lake Fifteen is a lake in Montmorency County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Lake Fifteen?
- Lake Fifteen in Montmorency County, Michigan has water-quality measurements published by EGLE, shown here as reported. Maximum depth: 55 ft. Surface area: 90.3 acres.
Is Lake Fifteen safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Lake Fifteen is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
How deep is Lake Fifteen?
- Lake Fifteen has a maximum depth of 55 feet and an average depth of 10 feet. The lake covers 90.3 acres.
Are there boat ramps on Lake Fifteen?
- Lake Fifteen has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake Fifteen. Public access is listed as yes.
Can I fish at Lake Fifteen?
- Lake Fifteen has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Michigan's fish and wildlife agency, so check its current regulations before you go.
Explore Lake Fifteen across LakeQuality
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Where this data comes from
Measurements for Lake Fifteen come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory