Glendale Lake
Pope County, WisconsinMesotrophic
Glendale Lake is a 84-acre mesotrophic lake in Pope County, IL. Water quality is graded B based on 2 sampling years through 2020. Compared to the 1 other monitored lakes in Pope County, Glendale Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2020-11-02. Grade methodology: LakeGrade methodology.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Murky, only visible to about 4.8 ft. Phosphorus level: 16 µg/L. Trophic State Index: 49.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.8 ft | D |
| Phosphorus | 16 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 49 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 84 acres |
Location
County Ranking
Ranked #2 of 2 lakes in Pope County
Nearby Lakes in Pope County
More Wisconsin Lake Rankings
Other Grade B Lakes in Wisconsin
Mesotrophic Lakes in Wisconsin
Reservoir Info (USACE NID)
Glendale Lake is a man-made reservoir impounded by the Lake Glendale (completed 1938), built primarily for recreation on the TR-SUGAR; earth-type dam, 38 ft tall and 975 ft long.
- Surface area
- 84 ac
- Normal storage
- 860 ac-ft
- Max storage
- 1,814 ac-ft
- Drainage area
- 2 sq mi
- Hazard class
- Significant
- Owner
- USDA FS
Source: USACE National Inventory of Dams, NID ID IL00102 · Operator website
EPA Impairment Status
Glendale Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit IL_RAZO · Official waterbody report · Matched by proximity (2.93 km)
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Grading methodology based on Metropolitan Council standards
Most recent sample: 2020-11-02
Monitoring stations: 3