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LakeQuality

Stahl'S Lake

D
Grade D — Nutrient-rich
Nutrient-rich · #2 of 5 lakes in the county · 6 ft clear · Eutrophic · 141 acres
Limited DataEutrophic

Stahl'S Lake in McLeod County, Minnesota has a water quality grade of D (Nutrient-rich). Water clarity: 6 ft visibility. Phosphorus: 129 µg/L. Chlorophyll-a (algae): 7.6 µg/L. Maximum depth: 37 ft. Surface area: 140.57 acres.

Clarity
6 ft
Typical in August
65°F
Max depth
37 ft
Area
141 acres
Type
Eutrophic
Public access
Yes

Grade D measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Stahl'S Lake

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Stahl'S Lake is a 141-acre productive, nutrient-rich eutrophic lake in McLeod County, Minnesota with a maximum depth of 37 feet. Water quality is graded D based on 2 sampling years through 2023. The lake supports 14 documented fish species including black bullhead, black crappie, and bluegill. Public access is available with 2 public boat landings. Compared to the 4 other monitored lakes in McLeod County, Stahl'S Lake ranks #2 for water quality.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2023-09-19. Grade methodology: LakeGrade methodology.

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Swimming Safety

Grade only

Limited 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

Compare the safest swimming lakes near Willmar

Get alerts for Stahl'S Lake

Water Quality Grade: D (Nutrient-rich)

Murky, only visible to about 6 ft. Phosphorus level: 129 µg/L. Chlorophyll-a: 7.6 µg/L. Trophic State Index: 59.

MetricValueGrade
Water Clarity (Secchi Depth)6 ftNot graded
Phosphorus129 µg/LPoor
Chlorophyll-a (Algae)7.6 µg/LFair
Trophic State Index (TSI)59Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Stahl'S Lake

Compare lakeside cabins, hotels, and vacation rentals near Stahl'S Lake in McLeod 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 Stahl'S Lake are listed below.

Top-rated places to stay near Stahl'S Lake

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

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Water Temperature

Stahl'S Lake typically sits around 65°F at the surface in August. Summer average is about 61°F. Usually warmest in Aug (about 65°F) and coldest in May (about 52°F). These are typical values by month — not a live reading.

Jan
Feb
Mar
Apr
May
52°
Jun
57°
Jul
61°
Aug
65°
Sep
62°
Oct
Nov
Dec

Typical surface water temperature by month, from 50 field readings (20232023) via the EPA Water Quality Portal. See the full Stahl'S Lake water temperature breakdown →

Lake Details

CharacteristicValue
Maximum Depth37 ft
Surface Area141 acres
Shoreline Length2.7 mi
Littoral Zone60%
Public AccessYes

Lake Size & Watershed

Watershed (drainage) area
43 sq mi
Elevation
1,073 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).

Recreation & Access

2
Boat Landings
Yes
Public Access
  • Stahl LakePublic
  • Cedar LakePublic

Fish Species

Click a species to see every graded lake where it is documented.

Fishing Stahl'S Lake

DNR Fisheries Survey Summary

14 surveys on file from MN DNR Fisheries. Most recent: 2018-07-02 (Standard Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Black Bullhead39.490.42 lb
Bluegill37.320.19 lb
Yellow Perch14.500.11 lb
White Crappie13.100.2 lb
Brown Bullhead10.160.71 lb
Black Crappie8.270.23 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.

Black Bullhead

181 fish · 612 in · 2018-07-02
783906789101112

Bluegill

752 fish · 38 in · 2018-07-02
2781390345678

Yellow Perch

20 fish · 26 in · 2008-06-30
116023456

Brown Bullhead

14 fish · 714 in · 2018-07-02
4207891011121314

From the 2018-07-02 survey

A standard survey was conducted at Stahl's Lake on July 2, 2018, to monitor the lake's fish population and evaluate the Walleye stocking regime. Stahl's is a class 24 lake and net catches were compared to similar lakes around the state. The 2014 lake management plan (LMP) listed Bluegill and Largemouth Bass as primary…

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 Stahl'S Lake. 3 reports on file.

These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).

EPA Impairment Status

Stahl'S Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

Mercury

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit MN43-0104-00 · Official waterbody report

County Ranking

Ranked #2 of 5 lakes in McLeod County

Nearby Lakes in McLeod County

Frequently asked questions about Stahl'S Lake

What is the water quality grade for Stahl'S Lake?

Stahl'S Lake in McLeod County, Minnesota has a water quality grade of D (Nutrient-rich). Water clarity: 6 ft visibility. Phosphorus: 129 µg/L. Chlorophyll-a (algae): 7.6 µg/L. Maximum depth: 37 ft. Surface area: 140.57 acres.

Is Stahl'S 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. Stahl'S Lake has a water quality grade of D (Nutrient-rich). Algae concentration (chlorophyll-a) is 7.6 µg/L. Always check local health department advisories before swimming.

What is the water temperature of Stahl'S Lake?

Stahl'S Lake typically sits around 65°F at the surface in August, from 50 EPA Water Quality Portal field readings (2023–2023). That is a typical value for the month, not a live reading.

How deep is Stahl'S Lake?

Stahl'S Lake has a maximum depth of 37 feet. The lake covers 140.57 acres.

What fish are in Stahl'S Lake?

Fish species found in Stahl'S Lake include black bullhead, black crappie, bluegill, bowfin (dogfish), brown bullhead, common carp, green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, walleye, yellow bullhead, yellow perch. Stahl'S Lake is located in McLeod County, Minnesota.

Are there boat ramps on Stahl'S Lake?

Stahl'S Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Stahl Lake, Cedar Lake. Public access is listed as yes.

Where this data comes from

20 measurements from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Minnesota Pollution Control Agency - Ambient Surface WaterMNPCA20 samples · 2023

Analytical methods

  • Field measurement/observation, generic method
  • Phosphorus by 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

Named boat-access points from the USGS National Boat Ramps inventory