Westwood Lake
Hennepin County, MinnesotaEutrophic
Westwood Lake earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. The lake's weakest score is on Secchi depth — the water looks more turbid than its phosphorus number alone would predict.
Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. The lake's surface area is not consistently recorded across state datasets — physical context remains partial. Among the 95 graded lakes in Hennepin County, Westwood Lake ranks 19 — in the top quartile locally.
No invasive species are currently listed at Westwood Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Westwood Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The lake lacks a documented public access point, so visitor use is limited. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2021-09-07. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 3.9 ft. Phosphorus level: 24 µg/L. Trophic State Index: 54.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.9 ft | D |
| Phosphorus | 24 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 54 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #19 of 95 lakes in Hennepin County
Cleaner Lakes Within 30 Miles
Westwood Lake holds Grade C. 2 nearby lakes hold higher grades.
- BSweeney-Twin LakeHennepin County · mi · Higher grade (C → B)
- BSweeney LakeHennepin County · mi · Higher grade (C → B)
Nearby Lakes in Hennepin County
More Minnesota Lake Rankings
State Parks Near Westwood Lake
Other Grade C Lakes in Minnesota
Eutrophic Lakes in Minnesota
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Westwood Lake. 1 report on file.
- —Fish Stocking History — WestwoodFish Stocking History · MN DNR LakeFinder
EPA Impairment Status
Westwood Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit MN27-0082-00 · Official waterbody report · Matched by proximity (1.84 km)
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
Most recent sample: 2021-09-07
Monitoring stations: 1