Big Saint Germain Lake
Big Saint Germain Lake in Vilas County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 1625 acres.
- Area
- 1,625 acres
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Why Big Saint Germain Lake has no grade
We grade a lake only when the monitoring record supports a letter: 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 Big Saint Germain Lake, no water-quality sampling on record for this lake.
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.
Big Saint Germain Lake is a 1,625-acre lake in Vilas County, Wisconsin.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled recent years. Grade methodology: LakeQuality methodology.
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Big Saint Germain Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Big Saint Germain Lake
Compare lakeside cabins, hotels, and vacation rentals near Big Saint Germain Lake in Vilas 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 Big Saint Germain Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 1,625 acres |
No bathymetric survey has been published for Big Saint Germain Lake, so its depth is not documented here.
Recreation & Access
- Big Saint Germain LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Big Saint Germain Lake
Nearby Lakes in Vilas County
Frequently asked questions about Big Saint Germain Lake
Where is Big Saint Germain Lake?
- Big Saint Germain Lake is a lake in Vilas County, Wisconsin. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Big Saint Germain Lake?
- Big Saint Germain Lake in Vilas County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 1625 acres.
Is Big Saint Germain Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Big Saint Germain Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Big Saint Germain Lake?
- Big Saint Germain Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Big Saint Germain Lake.
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Where this data comes from
Measurements for Big Saint Germain Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory