Gonz Lake
Wright County, MinnesotaView mapDirections
Minnesota PCA publishes the water-quality measurements for Gonz Lake. Here is what has been measured.
- Hypereutrophic
Gonz Lake in Wright County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Phosphorus: 338 µg/L. Chlorophyll-a (algae): 21.2 µg/L.
Gonz Lake is a highly nutrient-loaded hypereutrophic lake in Wright County, Minnesota. Overall water quality is declining over recent sampling years. Limited fish-species data available. No public access — the lake is private or restricted. Compared to the 50 other monitored lakes in Wright County, Gonz Lake ranks #31 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2021-09-15. Methodology: how these readings are compared.
Swimming conditions
Readings onlyAlgae risk
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Gonz Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Gonz Lake
These are the measurements Minnesota PCA publishes for Gonz Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 338 µg/L. Chlorophyll-a 21.2 µg/L. TSI 74.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 338µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | 21.2µg/L | Poor GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 74 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Gonz Lake
Answers come straight from the public measurements and survey records on this page.
Stays via Stay22
Stays near Gonz Lake
Compare lakeside cabins, hotels, and vacation rentals near Gonz Lake in Wright 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 readings cover nutrients and algae, not lodging. Cabins and rentals around Gonz Lake are listed below.
Top-rated places to stay near Gonz Lake
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Fishing Gonz Lake
Water Quality Trend: Worsening
Based on 6 years of monitoring (2020–2025).
Water clarity
Worsening4 years
Phosphorus
Improving-36.66 µg/L/yr6 years
Chlorophyll-a
Worsening+4.76 µg/L/yr6 years
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Gonz Lake under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger. 1 facility has a reported Clean Water Act violation in the past three years.
- Saint Michael WwtpSaint Michael · 1.7 mi away · NPDES MN0020222MajorRecent violation
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Nearby Lakes in Wright County
Frequently asked questions about Gonz Lake
Where is Gonz Lake?
- Gonz Lake is a lake in Wright County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Gonz Lake?
- Gonz Lake in Wright County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Phosphorus: 338 µg/L. Chlorophyll-a (algae): 21.2 µg/L.
Is Gonz Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Can I fish at Gonz Lake?
- Public access to Gonz Lake is listed as no on the lake record, so confirm before you make the trip. Seasons, size and bag limits, and whether you need a license are set by Minnesota's fish and wildlife agency, so check its current regulations before you go.
Explore Gonz Lake across LakeQuality
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Where this data comes from
37 measurements from 2 monitoring stations, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA37 samples · 2020–2021
Analytical methods
- Phosphorus by Two Reagent Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (2)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Regulated discharger data from EPA ECHO (ICIS-NPDES)