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LakeQuality
C

Carver Lake

Washington County, MinnesotaMesotrophic

Carver Lake earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

Mesotrophic conditions dominate at Carver Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. Carver Lake reaches 36 ft at its deepest point — typical for Minnesota mid-sized lakes, with seasonal stratification but limited cold-water refuge. At 50 acres, Carver Lake sits below the Minnesota median: a small water where shoreline activity has an outsized effect on water quality. Carver Lake sits at rank 16 of 31 in Washington County, in the lower half of the local distribution.

No invasive species are currently listed at Carver Lake — the lake remains off the Minnesota infested-waters roster. The fishery includes walleye alongside the lake's other 13 documented species — a notable draw for Minnesota anglers. No formal public access is documented at Carver Lake — most use is by shoreline residents and their guests. The lake has a partial ice record — 13 observed ice-outs, centered near Mar 31. 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, Minnesota DNR LakeFinder, last sampled 2024-09-26. Grade methodology: LakeGrade methodology.

Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Moderate clarity, visible to about 8.5 ft. Phosphorus level: 31 µg/L. Trophic State Index: 50.

MetricValueGrade
Water Clarity (Secchi Depth)8.5 ftC
Phosphorus31 µg/LC
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)50Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth36 ft
Surface Area50.06 acres
Shoreline Length1.2 mi
Littoral Zone50%
Public AccessNo

Fish Species

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

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

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

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

Water Quality Trend: Declining

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

MetricTrendChange/YearYears
Water Clarity Declining-0.613 m/yr4
Phosphorus Declining+8.1 µg/L/yr4

Ice Season

Historical ice data from Minnesota DNR (14 observations).

Typical Ice-Out
Mar 31
EarliestLatest
Ice-Out2024-03-04 (2024)2018-04-29 (2018)
Ice-In1995-11-12 (1995)1995-11-12 (1995)

Most recent ice-out: 2026-04-01

Location

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County Ranking

Ranked #16 of 31 lakes in Washington County

Nearby Lakes in Washington County

DNR Fisheries Survey Summary

8 surveys on file from MN DNR Fisheries. Most recent: 2024-08-05 (Standard Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Bluegill32.000.1 lb
Black Bullhead27.600.36 lb
Black Crappie10.600.15 lb
GOS6.630.08 lb
Northern Pike4.502.88 lb
Largemouth Bass2.880.52 lb

CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.

Length Distributions

Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.

Bluegill

559 fish · 28 in · 2024-08-05
1788902345678

Black Bullhead

1 fish · 88 in · 2024-08-05
108

Black Crappie

43 fish · 49 in · 2024-08-05
950trophy 10456789

GOS

2 fish · 66 in · 2024-08-05
2106

From the 2024-08-05 survey

Carver Lake is a 50-acre (24 littoral acre), class 30 lake in Woodbury that has fair water clarity and a typical fish community for a lake in the metro area. The lake is currently managed by the Fishing in the Neighborhood (FiN) program. A large city park on the lake offers many amenities including a swimming beach,…

Source: MN DNR LakeFinder Fisheries Lake Survey

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Carver Lake. 2 reports on file.

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Lake details from Minnesota DNR LakeFinder

Ice data from Minnesota DNR Climate

Most recent sample: 2024-09-26

Monitoring stations: 1