O'Rourke Lake; Bagley Twp
Otsego County, WisconsinOligotrophic
O'Rourke Lake; Bagley Twp is a cold, clear oligotrophic lake in Otsego County, MI. Water quality is graded A based on 2 sampling years through 2023. Compared to the 12 other monitored lakes in Otsego County, O'Rourke Lake; Bagley Twp ranks #7 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2023-09-17. Grade methodology: LakeGrade methodology.
Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Crystal clear, you can see 15 ft down. Chlorophyll-a: 1.3 µg/L. Trophic State Index: 36.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 15 ft | A |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 1.3 µg/L | A |
| Trophic State Index (TSI) | 36 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Location
County Ranking
Ranked #7 of 13 lakes in Otsego County
Nearby Lakes in Otsego County
More Wisconsin Lake Rankings
Other Grade A Lakes in Wisconsin
Mecosta County · Clarity: 12.8 ft
Benzie County · Clarity: 13.5 ft
Clare County · Clarity: 15 ft
Kalkaska County · Clarity: 16 ft
Gogebic County · Clarity: 18 ft
Iron County · Clarity: 16 ft
Oligotrophic Lakes in Wisconsin
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-09-17
Monitoring stations: 1