Lower Hamlin Lake North Central Basin South of the Narrows
Mason County, WisconsinMesotrophic
Lower Hamlin Lake North Central Basin South of the Narrows is a mesotrophic lake in Mason County, MI. Water quality is graded A based on 2 sampling years through 2023. The lake supports 11 documented fish species including Chestnut lamprey, Emerald shiner, and Freshwater drum. Compared to the 7 other monitored lakes in Mason County, Lower Hamlin Lake North Central Basin South of the Narrows ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2023-09-11. Grade methodology: LakeGrade methodology.
Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Good clarity, visible to about 13.5 ft. Chlorophyll-a: 4.1 µg/L. Trophic State Index: 42.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 13.5 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 4.1 µg/L | A |
| Trophic State Index (TSI) | 42 | Mesotrophic |
Moderate nutrients, good water quality
Fish Species
Click a species to see all Wisconsin and Minnesota lakes where it is found.
Location
County Ranking
Ranked #5 of 8 lakes in Mason County
Nearby Lakes in Mason 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
Mesotrophic Lakes in Wisconsin
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-09-11
Monitoring stations: 1