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LakeQuality

Kettle Lake

NR
Not yet rated
4.8 ft clear · Eutrophic
Limited DataEutrophic

Kettle Lake in Langlade County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 4.8 ft visibility.

Clarity
4.8 ft
Public access
Yes

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Why Kettle 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 Kettle 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.

Kettle Lake is a lake in Langlade County, Wisconsin. Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2023-08-04. Grade methodology: LakeQuality methodology.

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Swimming Safety

Not rated

Limited data

Not rated for swimming — there is not enough monitoring data to judge this lake

Compare the safest swimming lakes near Rhinelander

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Water quality measurements for Kettle Lake

These readings exist but are not enough for an A–F grade — see why.

Murky, only visible to about 4.8 ft. Trophic State Index: 55.

MetricValueGrade
Water Clarity (Secchi Depth)4.8 ftNot graded
PhosphorusNo recent samples
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)55Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Kettle Lake

Compare lakeside cabins, hotels, and vacation rentals near Kettle Lake in Langlade 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.

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Recreation & Access

1
Boat Landings
Yes
Public Access
  • Deep Woods LakePublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Fishing Kettle Lake

EPA Impairment Status

Kettle Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Mercury

Source: EPA ATTAINS assessment unit WI10026686 · Official waterbody report · Matched by proximity (1.11 km)

Graded lakes near Kettle Lake

Kettle Lake has no grade, but these lakes within a short drive do.

Nearby Lakes in Langlade County

Frequently asked questions about Kettle Lake

Where is Kettle Lake?

Kettle Lake is a lake in Langlade 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 Kettle Lake?

Kettle Lake in Langlade County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 4.8 ft visibility.

Is Kettle Lake safe to swim in?

Not rated for swimming — there is not enough monitoring data to judge this lake. Kettle 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 Kettle Lake?

Kettle Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Deep Woods Lake. Public access is listed as yes.

Where this data comes from

6 measurements from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Wisconsin Department of Natural ResourcesWIDNR_WQX6 samples · 2023
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

Impairment status from EPA ATTAINS 303(d) database

Lake size & watershed from HydroLAKES (HydroSHEDS)

Named boat-access points from the USGS National Boat Ramps inventory