What is the water quality grade for Au Sable Lake East Central Basin,Goodar Township?

Au Sable Lake East Central Basin,Goodar Township in Ogemaw County, Michigan received a water quality grade of A (Excellent). Water clarity: 10.5 ft visibility. Chlorophyll-a (algae): 3.3 µg/L.

Is Au Sable Lake East Central Basin,Goodar Township safe to swim in?

Excellent for swimming, crystal clear water with minimal algae. Au Sable Lake East Central Basin,Goodar Township has an overall water quality grade of A. Algae concentration (chlorophyll-a) is 3.3 µg/L. Always check local health department advisories before swimming.

Ogemaw County, Michigan

Au Sable Lake East Central Basin,Goodar Township

Grade AExcellent · 10.5 ft clarity

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Mesotrophic

Au Sable Lake East Central Basin,Goodar Township is a mesotrophic lake in Ogemaw County, Michigan. Water quality is graded A based on 2 sampling years through 2023. Overall water quality is improving over recent sampling years. The lake supports 11 documented fish species including Bluegill, Bluntnose minnow, and Iowa darter. Public access is available with 1 public boat landing. Compared to the 1 other monitored lakes in Ogemaw County, Au Sable Lake East Central Basin,Goodar Township ranks #1 for water quality.

Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2023-09-09. Grade methodology: LakeGrade methodology.

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Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

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Water Quality Grade: A, Excellent

Good clarity, visible to about 10.5 ft. Chlorophyll-a: 3.3 µg/L. Trophic State Index: 43.

Metric	Value	Grade
Water Clarity (Secchi Depth)	10.5 ft	B
Phosphorus	No data
Chlorophyll-a (Algae)	3.3 µg/L	A
Trophic State Index (TSI)	43	Mesotrophic

Moderate nutrients, good water quality

Where to stay near Au Sable Lake East Central Basin,Goodar Township

Compare lakeside cabins, hotels, and vacation rentals near Au Sable Lake East Central Basin,Goodar Township in Ogemaw 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.

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Fish Species

Bluegill Bluntnose minnow Iowa darter Johnny darter Largemouth bass Least darter Northern longear sunfish Pumpkinseed Rock bass Western banded killifish Yellow perch

Click a species to see every graded lake where it is documented.

Fishing Au Sable Lake East Central Basin,Goodar Township

Water Quality Trend: ↑ Improving

Based on 2 years of monitoring data (2020-2025).

Metric	Trend	Change/Year	Years
Water Clarity	↑ Improving	+4.27 m/yr	2
Chlorophyll-a	↑ Improving	-0.3 µg/L/yr	2

Recreation & Access

Boat Landings

Yes

Public Access

Water Temperature

Au Sable Lake East Central Basin,Goodar Township averages about 56°F at the surface in summer, usually warmest in Aug (about 57°F) and coldest in May (about 51°F). These are typical values by month — not a live reading.