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LakeQuality
C

Lake Wisconsin Palisade Street Bay

Sauk County, WisconsinLimited DataMesotrophic

Lake Wisconsin Palisade Street Bay earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

Mesotrophic conditions dominate at Lake Wisconsin Palisade Street Bay: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. A maximum depth of 24 ft puts Lake Wisconsin Palisade Street Bay in the middle of Wisconsin's depth distribution. Lake Wisconsin Palisade Street Bay covers 7,197 acres alongside partial shoreline records, large enough that conditions can vary meaningfully between bays. Within the 11 graded lakes of Sauk County, Lake Wisconsin Palisade Street Bay sits at rank 10, near the bottom of the county list.

Zebra mussel presence at Lake Wisconsin Palisade Street Bay means the lake's clarity numbers carry an asterisk — filtered water is not the same as nutrient-poor water. Walleye are documented at Lake Wisconsin Palisade Street Bay, one of 7 fish species on record for the lake. A documented public access point at Lake Wisconsin Palisade Street Bay makes the lake usable for shore fishing, paddle craft, and trailered boats. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-10-10. Grade methodology: LakeGrade methodology.

Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Moderate clarity, visible to about 8.6 ft. Trophic State Index: 46.

MetricValueGrade
Water Clarity (Secchi Depth)8.6 ftC
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)46Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth24 ft
Surface Area7.2K acres
Public AccessYes

Fish Species

Click a species to see all Wisconsin and Minnesota lakes where it is found.

→ Best fishing times for Lake Wisconsin Palisade Street Bay (14-day solunar calendar)

→ Is it safe to eat fish from Lake Wisconsin Palisade Street Bay? (mercury & PFAS guide)

Lake Wisconsin Palisade Street Bay fishing regulations (limits, seasons, special rules)

Invasive Species

Curly-Leaf PondweedEurasian Water-MilfoilPurple LoosestrifeZebra MusselFlowering Rush

Water Quality Trend: Declining

Based on 7 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-0.066 m/yr7
See year-by-year chart →

Recreation & Access

15
Boat Landings
Yes
Public Access

Location

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County Ranking

Ranked #10 of 11 lakes in Sauk County

Cleaner Lakes Within 30 Miles

Lake Wisconsin Palisade Street Bay holds Grade C. One nearby lake has a higher grade.

See full comparison →

Nearby Lakes in Sauk County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 1993. 44 stations on file (most recent sample 2025).

DNR Assessment
Reported
Trophic State Index 70 (eutrophic) · 5-year average

Fish Species (DNR-rated)

Largemouth Bass(Common)Smallmouth Bass(Common)Northern Pike(Common)Walleye(Common)Panfish(Present)Trout(Present)Catfish(Present)

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Fish and recreation data from Wisconsin DNR Lakes

Most recent sample: 2024-10-10

Monitoring stations: 1