Skip to main content
LakeQuality
C

Dog Lake

Oneida County, WisconsinEutrophic

Dog Lake sits at a C on the grading scale — not impaired, not pristine, with summer measurements that vary year to year. The lake's weakest score is on Secchi depth — the water looks more turbid than its phosphorus number alone would predict.

At a TSI of 54, Dog Lake reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. A maximum depth of 22 ft puts Dog Lake in the middle of Wisconsin's depth distribution. The lake's 202 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. Within Oneida County's 134 graded lakes, Dog Lake ranks 74 — below the local median, though not at the bottom.

Dog Lake has at least one documented invasive species (Rusty Crayfish), so boaters and anglers should observe clean-drain-dry steps when leaving the lake. The fishery includes walleye alongside the lake's other 6 documented species — a notable draw for Wisconsin anglers. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-09-01. Grade methodology: LakeGrade methodology.

Watch Dog Lake water quality

Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.

Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Murky, only visible to about 3.9 ft. Phosphorus level: 25.1 µg/L. Trophic State Index: 54.

MetricValueGrade
Water Clarity (Secchi Depth)3.9 ftD
Phosphorus25.1 µg/LB
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)54Eutrophic

High nutrients, frequent algae, reduced clarity

Lake Details

CharacteristicValue
Maximum Depth22 ft
Surface Area202 acres
Public AccessYes

Fish Species

Click a species to see every graded lake where it is documented.

→ Best fishing times for Dog Lake (14-day solunar calendar)

→ Is it safe to eat fish from Dog Lake? (mercury & PFAS guide)

Dog 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.

Rusty Crayfish

Water Quality Trend: Improving

Based on 6 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.477 m/yr6
Phosphorus Stable-0.32 µg/L/yr3
See year-by-year chart →

Recreation & Access

2
Boat Landings
Yes
Public Access

Location

Loading map…

County Ranking

Ranked #74 of 134 lakes in Oneida County

Cleaner Lakes Within 30 Miles

Dog Lake holds Grade C. 4 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Oneida County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2024).

DNR Assessment
Good · Shallow Lowland lake
Trophic State Index 58 (eutrophic) · 5-year average

Fish Species (DNR-rated)

Musky(Common)Panfish(Present)Largemouth Bass(Present)Smallmouth Bass(Present)Northern Pike(Present)Walleye(Present)

EPA Impairment Status

Dog 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 WI10007841 · 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: 2024-09-01

Monitoring stations: 1

Where to stay near Dog Lake

Compare lakeside cabins, hotels, and vacation rentals near Dog Lake in Oneida 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.