Hubbard Lake
Alcona County, Michigan8,767 acresView mapDirections
Clarity, phosphorus, and algae all sit in the cleanest band for this region.
- Oligotrophic
- Impaired · Mercury
- #1 of 3 in the county
- 80 ft max depth
- Public access
- Limited data
Hubbard Lake in Alcona County, Michigan has a water quality grade of A (Excellent). Water clarity: 20 ft visibility. Phosphorus: 10 µg/L. Chlorophyll-a (algae): 1 µg/L. Maximum depth: 80 ft. Surface area: 8766.9 acres.
- Clarity
- 20 ft
- Typical in September
- 62°F
- Max depth
- 80 ft
- Area
- 8,767 acres
- Type
- Oligotrophic
- Trend
- ↑ Improving
- Public access
- Yes
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Free interactive depth-contour map of Hubbard Lake, reaching a maximum surveyed depth of 80 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
Hubbard Lake is a 8,767-acre cold, clear oligotrophic lake in Alcona County, Michigan with a maximum depth of 80 feet. Water quality is graded A based on 1 sampling years through 2023. Overall water quality is improving over recent sampling years. The lake supports 2 documented fish species including Lake herring and Lake whitefish. Public access is available with 2 public boat landings. Compared to the 2 other monitored lakes in Alcona County, Hubbard Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2023-09-08. Grade methodology: LakeQuality methodology.
What Hubbard Lake is good for
From access and monitoring records, not editorial picks.
- Clear water20 ft of visibility
- Boat launch2 documented ramps
- Deep water80 ft surveyed max depth
- Big water8,767 acres
Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The A is nutrients and algae, not a swimming clearance. Hubbard Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Water Quality Grade: A (Excellent)
Crystal clear, you can see 20 ft down. Phosphorus 10 µg/L. Chlorophyll-a 1 µg/L. TSI 34. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 20 ft | Not graded |
| Phosphorus | 10 µg/L | Not graded |
| Chlorophyll-a (Algae) | 1 µg/L | Good |
| Trophic State Index (TSI) | 34 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Water Temperature
Hubbard Lake typically sits around 62°F at the surface in September. Summer average is about 61°F. Usually warmest in Jul (about 63°F) and coldest in May (about 51°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 1,245 field readings (2010–2016) via the EPA Water Quality Portal. See the full Hubbard Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 80 ft |
| Surface Area | 8,767 acres |
| Public Access | Yes |
Recreation & Access
- Hubbard Lake North BayPublic
- East Bay Tollson ParkPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Hubbard Lake
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.92 m/yr | 3 |
| Phosphorus | → Stable | 0 µg/L/yr | 2 |
EPA Impairment Status
Hubbard Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MI040700060504-02 · Official waterbody report · Matched by proximity (0.51 km)
County Ranking
Ranked #1 of 3 lakes in Alcona County
Nearby Lakes in Alcona County
Frequently asked questions about Hubbard Lake
Where is Hubbard Lake?
- Hubbard Lake is a lake in Alcona County, Michigan. LakeQuality grades it A for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Hubbard Lake?
- Hubbard Lake in Alcona County, Michigan has a water quality grade of A (Excellent). Water clarity: 20 ft visibility. Phosphorus: 10 µg/L. Chlorophyll-a (algae): 1 µg/L. Maximum depth: 80 ft. Surface area: 8766.9 acres.
Is Hubbard Lake safe to swim in?
- The A is nutrients and algae, not a swimming clearance. Hubbard Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
What is the water temperature of Hubbard Lake?
- Hubbard Lake typically sits around 62°F at the surface in September, from 1,245 EPA Water Quality Portal field readings (2010–2016). That is a typical value for the month, not a live reading.
How deep is Hubbard Lake?
- Hubbard Lake has a maximum depth of 80 feet. The lake covers 8766.9 acres.
What fish are in Hubbard Lake?
- Fish species found in Hubbard Lake include Lake herring, Lake whitefish. Hubbard Lake is located in Alcona County, Michigan.
Are there boat ramps on Hubbard Lake?
- Hubbard Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Hubbard Lake North Bay, East Bay Tollson Park. Public access is listed as yes.
Explore Hubbard Lake across LakeQuality
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Fish species and best lakes in Alcona County
Species activity outlook by water temperature and season
Where to stay at Michigan's top lakes, each with its grade
Low nutrients, clear water. The letter is not a swimming clearance.
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Where this data comes from
51 measurements from 1 monitoring station, 2016–2023. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- Michigan EGLE - MiCorps
21MICH_MICORPS51 samples · 2016–2023
Analytical methods
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory