Jacomo Lake
Jackson County, WisconsinEutrophic
Jacomo Lake is a 1,221-acre productive, nutrient-rich eutrophic lake in Jackson County, MO. Water quality is graded C based on 3 sampling years through 2024. Compared to the 26 other monitored lakes in Jackson County, Jacomo Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2024-09-17. Grade methodology: LakeGrade methodology.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Very murky, less than 3.3 ft of visibility. Phosphorus level: 20.5 µg/L. Chlorophyll-a: 13.6 µg/L. Trophic State Index: 55.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.3 ft | F |
| Phosphorus | 20.5 µg/L | B |
| Chlorophyll-a (Algae) | 13.6 µg/L | C |
| Trophic State Index (TSI) | 55 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 1.2K acres |
Location
County Ranking
Ranked #3 of 27 lakes in Jackson County
Nearby Lakes in Jackson County
More Wisconsin Lake Rankings
Other Grade C Lakes in Wisconsin
Warren County · Clarity: 3.8 ft
Ralls County · Clarity: 3.7 ft
Warren County · Clarity: 3.3 ft
Platte County · Clarity: 4.7 ft
Barry County · Clarity: 5 ft
Phelps County · Clarity: 4.9 ft
Eutrophic Lakes in Wisconsin
Reservoir Info (USACE NID)
Jacomo Lake is a man-made reservoir impounded by the Lake Jacomo Dam (completed 1956), built primarily for recreation on the EAST FORK LITTLE BLUE RIVER.; earth-type dam, 74 ft tall and 1,550 ft long.
- Surface area
- 1,221 ac
- Normal storage
- 25,730 ac-ft
- Max storage
- 38,620 ac-ft
- Drainage area
- 26.17 sq mi
- Hazard class
- High
- Owner
- JACKSON COUNTY
Source: USACE National Inventory of Dams, NID ID MO10045 · Operator website
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-09-17
Monitoring stations: 1