Hattie Lake
Stevens County, Minnesota459 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Hattie Lake. Here is what has been measured.
- Impaired · Mercury
- 9 ft max depth
- Public access
- Limited data
Hattie Lake in Stevens County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 3.5 ft visibility. Maximum depth: 9 ft. Surface area: 459.13 acres.
Minnesota DNR's Targeted Survey on May 3, 2023 caught 1720.50 black bullhead per trap net at Hattie Lake. Length samples in the latest survey that recorded them ran 3–12 inches. DNR survey details →
Hattie Lake is a 459-acre lake in Stevens County, Minnesota with a maximum depth of 9 feet (7-foot average). Overall water quality is improving over recent sampling years. The lake supports 7 documented fish species including bigmouth buffalo, black bullhead, and black crappie. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-09-01. Methodology: how these readings are compared.
What Hattie Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Fishing7 species recorded
Swimming conditions
No readingRecreation use not supported
Nutrient and algae readings are not a swimming clearance. Hattie Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Hattie 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 Hattie Lake
These are the measurements Minnesota PCA publishes for Hattie Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 3.5 ft. TSI 59.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3.5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 59 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Hattie Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Hattie Lake typically sits around 60°F at the surface in September. Summer average is about 76°F. Usually warmest in Jul (about 80°F) and coldest in Sep (about 60°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (60°F) to its warmest (80°F).
Typical surface water temperature by month, from 21 field readings (2010–2018) via the EPA Water Quality Portal. See the full Hattie Lake water temperature breakdown →
Minnesota DNR's Targeted Survey on May 3, 2023 caught 1720.50 black bullhead per trap net at Hattie Lake. Length samples in the latest survey that recorded them ran 3–12 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Hattie Lake’s water-quality measurements separately, and the water-quality trend over 3 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
12 surveys on file from MN DNR Fisheries. Most recent: 2023-05-03 (Targeted Survey).
12 surveys on file · most recent 2023-05-03 (Targeted Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Black Bullhead | 103.73 | 3–12 in 2023-05-03 | 0.33 lb |
| Fathead Minnow | 55.67 | 1–2 in 2022-04-26 | |
| Yellow Perch | 12.59 | 3–11 in 2022-04-26 | 0.31 lb |
| Walleye | 7.19 | 9–25 in 2022-04-26 | 1.75 lb |
| Black Crappie | 7.00 | 11 in 2022-04-26 | 0.33 lb |
CPUE = catch per unit effort, fish caught per net per set in a standardised survey. It measures abundance, not size, and is not a weekly bite report.
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
Fathead Minnow
Yellow Perch
Walleye
From the 2023-05-03 survey
This targeted survey was completed to determine extent of winterkill following the severe 2022-2023 winter. Despite winter operation of an aeration system, trap netting results suggested winterkill severity was high. It is worth noting that low oxygen levels were already being observed in late December, prior to the…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Hattie Lake. 3 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — HattieFisheries Lake Survey · MN DNR LakeFinder
- —Fish Stocking History — HattieFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — HattiePublic Water Access Sites · MN DNR LakeFinder
Lake Details
Max depth
9 ft
Average depth
7 ft
Surface area
459 acres
Shoreline
5.1 mi
Public access
Yes
Listed by Minnesota PCA
Lake Size & Watershed
Watershed (drainage) area
9 sq mi
HydroLAKES / HydroSHEDS
Elevation
1,132 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Hattie LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Hattie Lake
Compare lakeside cabins, hotels, and vacation rentals near Hattie Lake in Stevens 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 Hattie Lake
Prices for Oct 9–11, 4 adults. Change dates on the map below.
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 →
Follow Hattie Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fish Species
Click a species to see every lake where it is documented.
Fishing Hattie Lake
Water quality readings over time
3 seasons of samples on record (2020–2024). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Improving3 years
EPA Impairment Status
Hattie Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Fish consumption, Recreation.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN75-0200-00 · Official waterbody report
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Hattie Lake under Clean Water Act (NPDES) discharge permits.
- Riverview Llp - West River DairyMorris · 4.4 mi away · NPDES MN0072273
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 Stevens County
Frequently asked questions about Hattie Lake
Where is Hattie Lake?
- Hattie Lake is a lake in Stevens County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Hattie Lake?
- Hattie Lake in Stevens County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 3.5 ft visibility. Maximum depth: 9 ft. Surface area: 459.13 acres.
Is Hattie Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Hattie Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
What is the water temperature of Hattie Lake?
- Hattie Lake typically sits around 60°F at the surface in September, from 21 EPA Water Quality Portal field readings (2010–2018). That is a typical value for the month, not a live reading.
How deep is Hattie Lake?
- Hattie Lake has a maximum depth of 9 feet and an average depth of 7 feet. The lake covers 459.13 acres.
What fish are in Hattie Lake?
- Fish species found in Hattie Lake include bigmouth buffalo, black bullhead, black crappie, common carp, northern pike, walleye, yellow perch. Hattie Lake is located in Stevens County, Minnesota.
What did the DNR fisheries survey find at Hattie Lake?
- Minnesota DNR's Targeted Survey on May 3, 2023 caught 1720.50 black bullhead per trap net at Hattie Lake. Length samples in the latest survey that recorded them ran 3–12 inches. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Hattie Lake’s water-quality measurements separately, and the water-quality trend over 3 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Are there boat ramps on Hattie Lake?
- Hattie Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Hattie Lake. Public access is listed as yes.
Can I fish at Hattie Lake?
- Hattie Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. 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 Hattie Lake across LakeQuality
Depth, room, public access, and the state wake-sport rules
Fish species and the cleanest lakes across Minnesota
Fish species and best lakes in Stevens County
Species activity outlook by water temperature and season
Where to stay at Minnesota's top lakes, each with its readings
Minnesota's cleanest lakes, ranked on agency measurements
More lakes in Minnesota
State Parks Near Hattie Lake
Other Lakes in Minnesota
Eutrophic Lakes in Minnesota
Where this data comes from
6 measurements from 1 monitoring station, 2020–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA6 samples · 2020–2024
Analytical methods
- Field measurement/observation, generic method
Monitoring station identifiers (1)
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
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