Round Lake Central Basin; Grattan Township
Kent County, WisconsinLimited DataMesotrophic
Round Lake Central Basin; Grattan Township is a mesotrophic lake in Kent County, MI. Water quality is graded C based on 1 sampling years through 2022. Compared to the 17 other monitored lakes in Kent County, Round Lake Central Basin; Grattan Township ranks #13 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2022-07-04. Grade methodology: LakeGrade methodology.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Moderate clarity, visible to about 8 ft. Trophic State Index: 47.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8 ft | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 47 | Mesotrophic |
Moderate nutrients, good water quality
Location
County Ranking
Ranked #13 of 18 lakes in Kent County
Cleaner Lakes Within 30 Miles
Round Lake Central Basin; Grattan Township holds Grade C. 3 nearby lakes hold higher grades.
- BMurray Lake East Basin; Grattan TownshipKent County · 2.2 mi · Higher grade (C → B)
- BBig Pine Island Lake North Central BasinKent County · 2.9 mi · Higher grade (C → B)
- BScram Lake East Basin; Oakfield TownshipKent County · 7.2 mi · Higher grade (C → B)
Nearby Lakes in Kent County
More Wisconsin Lake Rankings
Other Grade C Lakes in Wisconsin
Cass County · Clarity: 7 ft
Leelanau County · Clarity: 9.5 ft
Iosco County · Clarity: 5.5 ft
Muskegon County · Clarity: 6.8 ft
Gladwin County · Clarity: 9 ft
Montmorency County · Clarity: 9 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: 2022-07-04
Monitoring stations: 1