Sandy Lake
Sandy Lake in Marquette County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 8 ft visibility. Maximum depth: 12 ft. Surface area: 8 acres.
- Clarity
- 8 ft
- Max depth
- 12 ft
- Area
- 8 acres
- Trend
- → Stable
Next lake in Marquette County
Why Sandy 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 Sandy 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.
Sandy Lake is a 8-acre lake in Marquette County, Wisconsin with a maximum depth of 12 feet. The lake supports 2 documented fish species including Panfish and Largemouth Bass.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-07-06. 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 Sandy Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Moderate clarity, visible to about 8 ft. Trophic State Index: 47.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 47 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Sandy Lake
Compare lakeside cabins, hotels, and vacation rentals near Sandy Lake in Marquette 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 Sandy Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 12 ft |
| Surface Area | 8 acres |
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Sandy Lake
Water Quality Trend: → Stable
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | -0.089 m/yr | 7 |
Graded lakes near Sandy Lake
Sandy Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Marquette County
Frequently asked questions about Sandy Lake
What is the water quality grade for Sandy Lake?
- Sandy Lake in Marquette County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 8 ft visibility. Maximum depth: 12 ft. Surface area: 8 acres.
Is Sandy Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Sandy Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
How deep is Sandy Lake?
- Sandy Lake has a maximum depth of 12 feet. The lake covers 8 acres.
What fish are in Sandy Lake?
- Fish species found in Sandy Lake include Panfish, Largemouth Bass. Sandy Lake is located in Marquette County, Wisconsin.
Explore Sandy Lake across LakeGrade
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Where this data comes from
43 measurements from 1 monitoring station, 2020–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX43 samples · 2020–2026
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
Fish and recreation data from Wisconsin DNR Lakes