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LakeQuality

Fountain Lake

NR
Not yet rated
1.7 ft clear · Eutrophic · 522 acres
Limited DataEutrophic

Fountain Lake in Freeborn County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.7 ft visibility. Maximum depth: 14 ft. Surface area: 521.54 acres.

Clarity
1.7 ft
Typical in August
77°F
Max depth
14 ft
Area
522 acres
Trend
Stable
Public access
Yes
Ice-out
Apr 6

Next lake in Freeborn County

BBeaver Lake9.5 ft clear · Steele CountyView →
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Why Fountain Lake has no grade

We grade a lake only when its monitoring record clears the evidence bar: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Fountain Lake, the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).

Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.

Sampling is run by MPCA and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.

Fountain Lake is a 522-acre lake in Freeborn County, Minnesota with a maximum depth of 14 feet. The lake supports 17 documented fish species including bigmouth buffalo, black bullhead, and black crappie. Public access is available with 3 public boat landings.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-30. Grade methodology: LakeGrade methodology.

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Swimming Safety

Not rated

Limited data

Not rated for swimming — there is not enough monitoring data to judge this lake

Compare the safest swimming lakes near Mankato

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Water quality measurements for Fountain Lake

These readings exist but do not meet the evidence bar for an A–F grade — see why.

Very murky, less than 1.7 ft of visibility. Trophic State Index: 69.

MetricValueGrade
Water Clarity (Secchi Depth)1.7 ftNot graded
PhosphorusNo recent samples
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)69Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Fountain Lake

Compare lakeside cabins, hotels, and vacation rentals near Fountain Lake in Freeborn 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.

Top-rated places to stay near Fountain Lake

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

Planning a whole trip? See where to stay at Minnesota’s top lakes →

Water Temperature

Fountain Lake typically sits around 77°F at the surface in August. Summer average is about 77°F. Usually warmest in Jul (about 81°F) and coldest in May (about 66°F). These are typical values by month — not a live reading.

Jan
Feb
Mar
Apr
May
66°
Jun
74°
Jul
81°
Aug
77°
Sep
70°
Oct
Nov
Dec

Typical surface water temperature by month, from 22 field readings (20102025) via the EPA Water Quality Portal. See the full Fountain Lake water temperature breakdown →

Lake Details

CharacteristicValue
Maximum Depth14 ft
Surface Area522 acres
Shoreline Length14.5 mi
Littoral Zone100%
Public AccessYes

Lake Size & Watershed

Watershed (drainage) area
94 sq mi
Elevation
1,207 ft

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

Recreation & Access

3
Boat Landings
Yes
Public Access
  • Frank Hall ParkPublic
  • Brookside ParkPublic
  • North Edgewater BayPublic

Fish Species

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

Fishing Fountain Lake

DNR Fisheries Survey Summary

18 surveys on file from MN DNR Fisheries. Most recent: 2024-08-12 (Standard Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Black Bullhead49.400.34 lb
Walleye27.681.7 lb
Green Sunfish26.940.09 lb
Black Crappie24.960.21 lb
Bluegill15.250.21 lb
Largemouth Bass11.221.46 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

1,353 fish · 413 in · 2024-08-12
626313045678910111213

Walleye

59 fish · 1025 in · 2024-08-12
1680trophy 241012141618202224

Green Sunfish

1 fish · 55 in · 2021-08-09
105

Black Crappie

285 fish · 412 in · 2024-08-12
193970trophy 10456789101112

From the 2024-08-12 survey

Fountain Lake is a 521-acre lake located within the town of Albert Lea in Freeborn County. Two city-owned public accesses are located on the northwest side of Edgewater Bay off State Hwy 13 and in the narrows off State Hwy 20 in Brookside Park. The maximum depth is 14 feet. Fountain Lake is considered eutrophic with…

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 Fountain Lake. 3 reports on file.

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

Based on 6 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Stable+0.004 m/yr6
See year-by-year chart →

Ice Season

Historical ice data from Minnesota DNR (112 observations).

Typical Ice-Out
Apr 6
EarliestLatest
Ice-Out2024-03-03 (2024)1953-04-30 (1953)
Ice-In2024-01-06 (2024)2024-01-06 (2024)

Most recent ice-out: 2026-03-22

Reservoir Info (USACE NID)

Fountain Lake is a man-made reservoir impounded by the Fountain Lake (completed 1911), built primarily for recreation on the Shell Rock River; other-type dam, 21 ft tall and 105 ft long.

Surface area
555 ac
Normal storage
3,500 ac-ft
Max storage
12,300 ac-ft
Drainage area
93 sq mi
Hazard class
Low
Owner
City of Albert Lea

Source: USACE National Inventory of Dams, NID ID MN00360 · Operator website

EPA Impairment Status

Fountain Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Impaired biota (cause unknown)MercuryNutrients (phosphorus, nitrogen)

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

Source: EPA ATTAINS assessment unit MN24-0018-02 · Official waterbody report · Matched by proximity (0.84 km)

Regulated Pollution Sources Nearby

2 EPA-permitted facilities operate within about 5 miles of Fountain Lake under Clean Water Act (NPDES) discharge permits.

  • Lou-Rich Inc
    Albert Lea · 1.3 mi away · NPDES MN0000086
  • Mdnr-Myre-Big Island St Park
    Albert Lea · 4.3 mi away · NPDES MN0033740

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.

Graded lakes near Fountain Lake

Fountain Lake has no grade, but these lakes within a short drive do.

Nearby Lakes in Freeborn County

Frequently asked questions about Fountain Lake

What is the water quality grade for Fountain Lake?

Fountain Lake in Freeborn County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.7 ft visibility. Maximum depth: 14 ft. Surface area: 521.54 acres.

Is Fountain Lake safe to swim in?

Not rated for swimming — there is not enough monitoring data to judge this lake. Fountain Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.

What is the water temperature of Fountain Lake?

Fountain Lake typically sits around 77°F at the surface in August, from 22 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.

How deep is Fountain Lake?

Fountain Lake has a maximum depth of 14 feet. The lake covers 521.54 acres.

What fish are in Fountain Lake?

Fish species found in Fountain Lake include bigmouth buffalo, black bullhead, black crappie, bluegill, channel catfish, common carp, goldfish, green sunfish, hybrid sunfish, largemouth bass, northern pike, orangespotted sunfish, walleye, white crappie, white sucker, yellow bullhead, yellow perch. Fountain Lake is located in Freeborn County, Minnesota.

When does Fountain Lake thaw?

Fountain Lake typically has ice-out around Apr 6.

Are there boat ramps on Fountain Lake?

Fountain Lake has 3 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Frank Hall Park, Brookside Park, North Edgewater Bay. Public access is listed as yes.

Where this data comes from

42 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Minnesota Pollution Control Agency - Ambient Surface WaterMNPCA42 samples · 2020–2025

Analytical methods

  • Field measurement/observation, generic method
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

Regulated discharger data from EPA ECHO (ICIS-NPDES)

Lake size & watershed from HydroLAKES (HydroSHEDS)

Lake details from Minnesota DNR LakeFinder

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

Ice data from Minnesota DNR Climate