Wassermann West Lake
Wassermann West Lake in Carver County, Minnesota has a water quality grade of D (Nutrient-rich). Water clarity: 5.2 ft visibility. Phosphorus: 64.5 µg/L. Chlorophyll-a (algae): 10.6 µg/L.
- Clarity
- 5.2 ft
- Typical in August
- 61°F
- Mean depth
- ~12 ft est.
- Type
- Eutrophic
- Trend
- ↓ Declining
- Public access
- Yes
Grade D measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Wassermann West Lake →
Next lake in Carver County
Wassermann West Lake is a productive, nutrient-rich eutrophic lake in Carver County, Minnesota with an estimated average depth of about 12 feet. Water quality is graded D based on 2 sampling years through 2021. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available. Compared to the 37 other monitored lakes in Carver County, Wassermann West Lake ranks #17 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2021-09-29. Grade methodology: LakeGrade methodology.
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Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum
Water Quality Grade: D (Nutrient-rich)
Murky, only visible to about 5.2 ft. Phosphorus level: 64.5 µg/L. Chlorophyll-a: 10.6 µg/L. Trophic State Index: 57.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.2 ft | Not graded |
| Phosphorus | 64.5 µg/L | Poor |
| Chlorophyll-a (Algae) | 10.6 µg/L | Fair |
| Trophic State Index (TSI) | 57 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Wassermann West Lake
Compare lakeside cabins, hotels, and vacation rentals near Wassermann West Lake in Carver County, Minnesota — 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. The water-quality grade measures nutrients and algae, not lodging — cabins and rentals around Wassermann West Lake are listed below.
Top-rated places to stay near Wassermann West Lake
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Planning a whole trip? See where to stay at Minnesota’s top lakes →
Water Temperature
Wassermann West Lake typically sits around 61°F at the surface in August. Summer average is about 60°F. Usually warmest in Aug (about 61°F) and coldest in Apr (about 44°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 145 field readings (2016–2021) via the EPA Water Quality Portal. See the full Wassermann West Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Average Depth | ~12 ft est. |
| Public Access | Yes |
Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Minnesota has not published bathymetry for Wassermann West Lake.
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Fishing Wassermann West Lake
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Wassermann West Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Public Water Access Sites — Wassermann WestPublic Water Access Sites · MN DNR LakeFinder
Water Quality Trend: ↓ Declining
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.012 m/yr | 6 |
| Phosphorus | → Stable | -0.37 µg/L/yr | 6 |
| Chlorophyll-a | ↓ Declining | +1.48 µg/L/yr | 6 |
EPA Impairment Status
Wassermann West Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN10-0048-00 · Official waterbody report · Matched by proximity (0.59 km)
County Ranking
Ranked #17 of 38 lakes in Carver County
Nearby Lakes With Higher Grades
Wassermann West Lake holds Grade D. One nearby lake has a higher nutrient-and-algae grade — useful for a swim day, not a reason to skip lodging here.
Nearby Lakes in Carver County
Frequently asked questions about Wassermann West Lake
What is the water quality grade for Wassermann West Lake?
- Wassermann West Lake in Carver County, Minnesota has a water quality grade of D (Nutrient-rich). Water clarity: 5.2 ft visibility. Phosphorus: 64.5 µg/L. Chlorophyll-a (algae): 10.6 µg/L.
Is Wassermann West Lake safe to swim in?
- Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum. Wassermann West Lake has a water quality grade of D (Nutrient-rich). Algae concentration (chlorophyll-a) is 10.6 µg/L. Always check local health department advisories before swimming.
What is the water temperature of Wassermann West Lake?
- Wassermann West Lake typically sits around 61°F at the surface in August, from 145 EPA Water Quality Portal field readings (2016–2021). That is a typical value for the month, not a live reading.
How deep is Wassermann West Lake?
- No published bathymetric survey covers Wassermann West Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 12 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
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Where this data comes from
47 measurements from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA47 samples · 2021
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Two Reagent Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
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)
Lake details from Minnesota DNR LakeFinder