Green Water Lake
Green Water Lake in Becker County, Minnesota has a water quality grade of A (Excellent). Water clarity: 12.1 ft visibility. Phosphorus: 14 µg/L. Chlorophyll-a (algae): 3 µg/L. Maximum depth: 57 ft. Surface area: 73.57 acres.
- Clarity
- 12.1 ft
- Max depth
- 57 ft
- Area
- 74 acres
- Type
- Mesotrophic
- Public access
- No
Next lake in Becker County
Green Water Lake is a 74-acre mesotrophic lake in Becker County, Minnesota with a maximum depth of 57 feet. Water quality is graded A based on 2 sampling years through 2025. The lake supports 9 documented fish species including bluegill, green sunfish, and hybrid sunfish. No public access — the lake is private or restricted. Compared to the 83 other monitored lakes in Becker County, Green Water Lake ranks #55 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-10. 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.
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A (Excellent)
Good clarity, visible to about 12.1 ft. Phosphorus level: 14 µg/L. Chlorophyll-a: 3 µg/L. Trophic State Index: 42.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 12.1 ft | Not graded |
| Phosphorus | 14 µg/L | Good |
| Chlorophyll-a (Algae) | 3 µg/L | Good |
| Trophic State Index (TSI) | 42 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Green Water Lake
Compare lakeside cabins, hotels, and vacation rentals near Green Water Lake in Becker 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.
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Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 57 ft |
| Surface Area | 74 acres |
| Shoreline Length | 2 mi |
| Littoral Zone | 22% |
| Public Access | No |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Green Water Lake
DNR Fisheries Survey Summary
1 survey on file from MN DNR Fisheries. Most recent: 1987-06-22 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Bluegill | 46.63 | 0.14 lb |
| Hybrid Sunfish | 12.56 | 0.15 lb |
| Yellow Perch | 12.00 | 0.14 lb |
| Rock Bass | 8.56 | 0.15 lb |
| Green Sunfish | 5.75 | 0.02 lb |
| Northern Pike | 4.69 | 1.02 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.
From the 1987-06-22 survey
ROCK BASS, BLUEGILL, HYBRID SUNFISH AND YELLOW PERCH POPULATIONS APPEAR TO BE EXCEPTIONALLY HIGH. NORTHERN PIKE AND LARGEMOUTH BASS NUMBERS ARE PROBABLY ABOVE LOCAL AND STATE MEDIANS. WALL- EYE ARE SEEMINGLY LIMITED TO A FEW IMMIGRANTS FROM ICE CRACKING LAKE. WITH NO FISHERIES MANAGEMENT, THIS LAKE APPEARS TO BE A…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Green Water Lake. 2 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — Green WaterFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Green Water (1025)Aquatic Plant Report · MN DNR LakeFinder
County Ranking
Ranked #55 of 84 lakes in Becker County
Nearby Lakes in Becker County
Frequently asked questions about Green Water Lake
What is the water quality grade for Green Water Lake?
- Green Water Lake in Becker County, Minnesota has a water quality grade of A (Excellent). Water clarity: 12.1 ft visibility. Phosphorus: 14 µg/L. Chlorophyll-a (algae): 3 µg/L. Maximum depth: 57 ft. Surface area: 73.57 acres.
Is Green Water Lake safe to swim in?
- Excellent for swimming, crystal clear water with minimal algae. Green Water Lake has a water quality grade of A (Excellent). Algae concentration (chlorophyll-a) is 3 µg/L. Always check local health department advisories before swimming.
How deep is Green Water Lake?
- Green Water Lake has a maximum depth of 57 feet. The lake covers 73.57 acres.
What fish are in Green Water Lake?
- Fish species found in Green Water Lake include bluegill, green sunfish, hybrid sunfish, largemouth bass, northern pike, rock bass, sunfish, yellow bullhead, yellow perch. Green Water Lake is located in Becker County, Minnesota.
Explore Green Water Lake across LakeGrade
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Where this data comes from
40 measurements from 2 monitoring stations, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Chippewa Tribe, Minnesota (White Earth Band) (Tribal)
WEARTH_WQX40 samples · 2025
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Two Reagent Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
- Turbidity by Nephelometry
Monitoring station identifiers (2)
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
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder