Port Perry Lake
Perry County, WisconsinOligotrophic
Port Perry Lake is a 187-acre cold, clear oligotrophic lake in Perry County, MO. Water quality is graded A based on 3 sampling years through 2024. Compared to the 2 other monitored lakes in Perry County, Port Perry Lake ranks #1 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
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Good clarity, visible to about 12 ft. Phosphorus level: 8.3 µg/L. Chlorophyll-a: 2.1 µg/L. Trophic State Index: 38.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 12 ft | B |
| Phosphorus | 8.3 µg/L | A |
| Chlorophyll-a (Algae) | 2.1 µg/L | A |
| Trophic State Index (TSI) | 38 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 187 acres |
Location
County Ranking
Ranked #1 of 3 lakes in Perry County
Nearby Lakes in Perry County
More Wisconsin Lake Rankings
Other Grade A Lakes in Wisconsin
Jefferson County · Clarity: 12.9 ft
St. Francois County · Clarity: 14.1 ft
Washington County · Clarity: 11.1 ft
St. Francois County · Clarity: 14.3 ft
Warren County · Clarity: 12.6 ft
St. Francois County · Clarity: 16.3 ft
Oligotrophic Lakes in Wisconsin
Reservoir Info (USACE NID)
Port Perry Lake is a man-made reservoir impounded by the Port Perry Dam (completed 1973), built primarily for recreation on the TR NATIONS CREEK; earth-type dam, 70 ft tall and 900 ft long.
- Surface area
- 187 ac
- Normal storage
- 828 ac-ft
- Max storage
- 6,506 ac-ft
- Drainage area
- 3.11 sq mi
- Hazard class
- High
Source: USACE National Inventory of Dams, NID ID MO30030 · 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