Timmerman Lake
Manistee County, MichiganView mapDirections
EGLE publishes the water-quality measurements for Timmerman Lake. Here is what has been measured.
- Mesotrophic
- 31 ft max depth
- Limited data
Timmerman Lake in Manistee County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 5 ft visibility. Phosphorus: 13 µg/L. Chlorophyll-a (algae): 6.9 µg/L. Maximum depth: 31 ft.
Timmerman Lake is a mesotrophic lake in Manistee County, Michigan with a maximum depth of 31 feet. Overall water quality is declining over recent sampling years. Compared to the 12 other monitored lakes in Manistee County, Timmerman Lake ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2018-09-04. Methodology: how these readings are compared.
What Timmerman Lake is good for
From access and monitoring records, not editorial picks.
- Deep water31 ft surveyed max depth
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Timmerman Lake 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 Timmerman Lake
These are the measurements EGLE publishes for Timmerman Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 5 ft. Phosphorus 13 µg/L. Chlorophyll-a 6.9 µg/L. TSI 48.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 13µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 6.9µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 48 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Timmerman Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
31 ft
Stays via Stay22
Stays near Timmerman Lake
Compare lakeside cabins, hotels, and vacation rentals near Timmerman Lake in Manistee 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 Timmerman Lake
Prices for Oct 16–18, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Michigan’s top lakes →
Follow Timmerman Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Timmerman Lake
Water quality readings over time
2 seasons of samples on record (2017–2018). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Worsening2 years
Nearby Lakes in Manistee County
Frequently asked questions about Timmerman Lake
Where is Timmerman Lake?
- Timmerman Lake is a lake in Manistee County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Timmerman Lake?
- Timmerman Lake in Manistee County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 5 ft visibility. Phosphorus: 13 µg/L. Chlorophyll-a (algae): 6.9 µg/L. Maximum depth: 31 ft.
Is Timmerman Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Timmerman Lake?
- Timmerman Lake has a maximum depth of 31 feet.
Explore Timmerman Lake across LakeQuality
Fish species and the cleanest lakes across Michigan
Fish species and best lakes in Manistee County
Species activity outlook by water temperature and season
Where to stay at Michigan's top lakes, each with its readings
Michigan's cleanest lakes, ranked on agency measurements
More lakes in Michigan
Other Lakes in Michigan
Mesotrophic Lakes in Michigan
Where this data comes from
22 measurements from 1 monitoring station, 2017–2018. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- Michigan EGLE - MiCorps
21MICH_MICORPS22 samples · 2017–2018
Analytical methods
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.