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LakeQuality
A

Lake Seventeen

Oneida County, WisconsinLimited DataOligotrophic

Lake Seventeen earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Oneida County. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

The lake's low TSI puts it in oligotrophic territory — the cleanest of the four trophic classes, but also the most vulnerable to nutrient-driven shifts. A maximum depth of 37 ft puts Lake Seventeen in the middle of Wisconsin's depth distribution. At 176 acres, Lake Seventeen fits the Wisconsin median for monitored lakes, with partial shoreline records. Lake Seventeen ranks 47 of 140 in Oneida County — solidly in the upper half of the local distribution.

No invasive species are currently listed at Lake Seventeen — the lake remains off the Wisconsin infested-waters roster. Walleye are documented at Lake Seventeen, one of 6 fish species on record for the lake. 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 2023-07-23. Grade methodology: LakeGrade methodology.

Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Crystal clear, you can see 39.4 ft down. Trophic State Index: 24.

MetricValueGrade
Water Clarity (Secchi Depth)39.4 ftA
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)24Oligotrophic

Low nutrients, clear water, excellent for swimming

Lake Details

CharacteristicValue
Maximum Depth37 ft
Surface Area176 acres

Fish Species

Click a species to see all Wisconsin and Minnesota lakes where it is found.

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

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

Lake Seventeen fishing regulations (limits, seasons, special rules)

Water Quality Trend: Stable

Based on 4 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Stable+0.025 m/yr4
See year-by-year chart →

Location

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County Ranking

Ranked #47 of 140 lakes in Oneida County

Nearby Lakes in Oneida County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. 2 stations on file (most recent sample 2023).

Fish Species (DNR-rated)

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

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Fish and recreation data from Wisconsin DNR Lakes

Most recent sample: 2023-07-23

Monitoring stations: 2