Falk Lake
Falk Lake in Burnett County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 10 ft visibility. Maximum depth: 30 ft. Surface area: 76 acres.
- Clarity
- 10 ft
- Typical in August
- 77°F
- Max depth
- 30 ft
- Area
- 76 acres
- Trend
- ↑ Improving
- Public access
- Yes
Next lake in Burnett County
Why Falk Lake has no grade
We grade a lake only when its monitoring record clears the evidence bar: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Falk Lake, the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by WI DNR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Falk Lake is a 76-acre lake in Burnett County, Wisconsin with a maximum depth of 30 feet. Overall water quality is improving over recent sampling years. The lake supports 4 documented fish species including Panfish, Largemouth Bass, and Northern Pike. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2025-10-04. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Falk Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Good clarity, visible to about 10 ft. Trophic State Index: 44.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 44 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Falk Lake
Compare lakeside cabins, hotels, and vacation rentals near Falk Lake in Burnett County, Wisconsin — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Falk Lake
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Planning a whole trip? See where to stay at Wisconsin’s top lakes →
Water Temperature
Falk Lake typically sits around 77°F at the surface in August. Summer average is about 75°F. Usually warmest in Aug (about 77°F) and coldest in Oct (about 69°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 14 field readings (2025–2025) via the EPA Water Quality Portal. See the full Falk Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 30 ft |
| Surface Area | 76 acres |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Falk LakePublic
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Falk Lake
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 1992. 1 station on file (most recent sample 2025).
Fish Species (DNR-rated)
Water Quality Trend: ↑ Improving
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | -0.15 m/yr | 6 |
| Phosphorus | ↑ Improving | -0.32 µg/L/yr | 7 |
Graded lakes near Falk Lake
Falk Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Burnett County
Frequently asked questions about Falk Lake
What is the water quality grade for Falk Lake?
- Falk Lake in Burnett County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 10 ft visibility. Maximum depth: 30 ft. Surface area: 76 acres.
Is Falk Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Falk Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
What is the water temperature of Falk Lake?
- Falk Lake typically sits around 77°F at the surface in August, from 14 EPA Water Quality Portal field readings (2025–2025). That is a typical value for the month, not a live reading.
How deep is Falk Lake?
- Falk Lake has a maximum depth of 30 feet. The lake covers 76 acres.
What fish are in Falk Lake?
- Fish species found in Falk Lake include Panfish, Largemouth Bass, Northern Pike, Walleye. Falk Lake is located in Burnett County, Wisconsin.
Are there boat ramps on Falk Lake?
- Falk Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Falk Lake. Public access is listed as yes.
Explore Falk Lake across LakeGrade
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Where this data comes from
26 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX26 samples · 2020–2025
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Fish and recreation data from Wisconsin DNR Lakes
Named boat-access points from the USGS National Boat Ramps inventory