Rhinelander Flowage Lake
Rhinelander Flowage Lake in Oneida County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.2 ft visibility.
- Clarity
- 5.2 ft
- Trend
- → Stable
- Public access
- Yes
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Why Rhinelander Flowage 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 Rhinelander Flowage 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.
Rhinelander Flowage Lake is a lake in Oneida County, Wisconsin. Limited fish-species data available. Public access is available with 4 public boat landings.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-10-02. Grade methodology: LakeQuality methodology.
Watch Rhinelander Flowage Lake water quality
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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 Rhinelander Flowage Lake
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 5.2 ft. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.2 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Rhinelander Flowage Lake
Compare lakeside cabins, hotels, and vacation rentals near Rhinelander Flowage Lake in Oneida 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 Rhinelander Flowage Lake
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DNR Reports & Resources
Wisconsin DNR Fisheries scientists publish multi-year survey reports for Rhinelander Flowage Lake covering fish populations, stocking, water quality, and management. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- 2023Boom Rhinelander Chain fisheries survey, 2023Fisheries Survey · WI DNR · 2023 (PDF)
Recreation & Access
- Rhinelander Flowage - 2Public
- Fredrich'sPublic
- Rhinelander Flowage - 1Public
- Rhinelander Flowage - 3Public
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Rhinelander Flowage Lake
Water Quality Trend: → Stable
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | -0.05 m/yr | 4 |
Graded lakes near Rhinelander Flowage Lake
Rhinelander Flowage Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Oneida County
Frequently asked questions about Rhinelander Flowage Lake
Where is Rhinelander Flowage Lake?
- Rhinelander Flowage Lake is a lake in Oneida County, Wisconsin. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Rhinelander Flowage Lake?
- Rhinelander Flowage Lake in Oneida County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.2 ft visibility.
Is Rhinelander Flowage Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Rhinelander Flowage 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 Rhinelander Flowage Lake?
- Rhinelander Flowage Lake has 4 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Rhinelander Flowage - 2, Fredrich's, Rhinelander Flowage - 1, Rhinelander Flowage - 3. Public access is listed as yes.
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Where this data comes from
47 measurements from 1 monitoring station, 2020–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX47 samples · 2020–2024
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)
Named boat-access points from the USGS National Boat Ramps inventory