Trego Lake
Trego Lake in Washburn County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 168 acres.
- Area
- 168 acres
Next lake in Washburn County
Swipe left or right on this bar to open the next or previous lake.
Why Trego 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 Trego 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.
Trego Lake is a 168-acre lake in Washburn County, Wisconsin.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Trego Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Trego 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 Trego Lake
Compare lakeside cabins, hotels, and vacation rentals near Trego Lake in Washburn 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 Trego Lake
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Wisconsin’s top lakes →
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 168 acres |
No bathymetric survey has been published for Trego Lake, so its depth is not documented here.
Fishing Trego Lake
Nearby Lakes in Washburn County
Frequently asked questions about Trego Lake
Where is Trego Lake?
- Trego Lake is a lake in Washburn 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 Trego Lake?
- Trego Lake in Washburn County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 168 acres.
Is Trego Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Trego Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Trego Lake across LakeQuality
Fish species and top-graded lakes across Wisconsin
Fish species and best lakes in Washburn County
Species activity outlook by water temperature and season
Top lakes and where to stay in the Hayward Lakes area
Where to stay at Wisconsin's top lakes, each with its grade
Lakes in the Chippewa River Watershed, ranked by water quality
Wisconsin's cleanest and most-polluted lakes, ranked
More Wisconsin Lake Rankings
Other Lakes in Wisconsin
Where this data comes from
Measurements for Trego Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.