Lac Sault Dore Lake
Price County, WisconsinEutrophic
On the scoring rubric Lac Sault Dore Lake grades a D: clarity at 3.0 ft and 46 µg/L of phosphorus keep it in the lower bracket for Price County. Clarity is the limiting factor — phosphorus is reasonable but suspended particles or algal cells keep water transparency below Wisconsin norms.
Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. A maximum depth of 21 ft puts Lac Sault Dore Lake in the middle of Wisconsin's depth distribution. The lake's 601 acres and partial shoreline records put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Lac Sault Dore Lake sits at rank 16 of 27 in Price County, in the lower half of the local distribution.
Lac Sault Dore Lake carries an invasive watermilfoil record — boat-launch decontamination and shoreline care matter more here than at uninfested lakes. Walleye are documented at Lac Sault Dore Lake, one of 6 fish species on record for the lake. Public access is available — the lake is on the Wisconsin DNR public-access list. 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 2026-05-25. Grade methodology: LakeGrade methodology.
Watch Lac Sault Dore Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Very murky, less than 3 ft of visibility. Phosphorus level: 46.2 µg/L. Trophic State Index: 60.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 ft | F |
| Phosphorus | 46.2 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 60 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 21 ft |
| Surface Area | 601 acres |
| Public Access | Yes |
Fish Species
Click a species to see every graded lake where it is documented.
→ Best fishing times for Lac Sault Dore Lake (14-day solunar calendar)
→ Is it safe to eat fish from Lac Sault Dore Lake? (mercury & PFAS guide)
→ Lac Sault Dore Lake fishing regulations (limits, seasons, special rules)
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Water Quality Trend: → Stable
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.171 m/yr | 6 |
| Phosphorus | ↑ Improving | -1.14 µg/L/yr | 6 |
Recreation & Access
Location
County Ranking
Ranked #16 of 27 lakes in Price County
Cleaner Lakes Within 30 Miles
Lac Sault Dore Lake holds Grade D. 3 nearby lakes hold higher grades.
- AConnors LakeSawyer County · mi · Two grade letters higher (D → A)
- BLake Ten-Deep HolePrice County · mi · Two grade letters higher (D → B)
- BLake of the PinesSawyer County · mi · Two grade letters higher (D → B)
Nearby Lakes in Price County
More Wisconsin Lake Rankings
Other Grade D Lakes in Wisconsin
Eutrophic Lakes in Wisconsin
Compare Lac Sault Dore Lake With Nearby Lakes
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 1990. 2 stations on file (most recent sample 2025).
Fish Species (DNR-rated)
DNR Reports & Resources
Wisconsin DNR Fisheries scientists publish multi-year survey reports for Lac Sault Dore Lake covering fish populations, stocking, water quality, and management. 1 report on file.
- 2023Lac Sault Dore (Soo Lake) fall shocking survey, 2023Fisheries Survey · WI DNR · 2023 (PDF)
EPA Impairment Status
Lac Sault Dore Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit WI10003528 · Official waterbody report
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Grading methodology based on Metropolitan Council standards
Fish and recreation data from Wisconsin DNR Lakes
Public boat-access points from the USGS National Boat Ramps inventory
Most recent sample: 2026-05-25
Monitoring stations: 1
Where to stay near Lac Sault Dore Lake
Compare lakeside cabins, hotels, and vacation rentals near Lac Sault Dore Lake in Price County, Wisconsin — live availability and prices for your trip.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.