Hattie Lake
Hattie Lake in Stevens County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 3.5 ft visibility. Maximum depth: 9 ft. Surface area: 459.13 acres.
- Clarity
- 3.5 ft
- Typical in August
- 76°F
- Max depth
- 9 ft
- Area
- 459 acres
- Trend
- ↑ Improving
- Public access
- Yes
Next lake in Stevens County
Why Hattie 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 Hattie 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.
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. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Hattie Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Murky, only visible to about 3.5 ft. Trophic State Index: 59.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.5 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 59 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay 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
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Water Temperature
Hattie Lake typically sits around 76°F at the surface in August. 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.
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 →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 9 ft |
| Average Depth | 7 ft |
| Surface Area | 459 acres |
| Shoreline Length | 5.1 mi |
| Littoral Zone | 101% |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Hattie LakePublic
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Hattie Lake
DNR Fisheries Survey Summary
12 surveys on file from MN DNR Fisheries. Most recent: 2023-05-03 (Targeted Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Black Bullhead | 103.73 | 0.33 lb |
| Fathead Minnow | 55.67 | — |
| IOD | 17.24 | — |
| Yellow Perch | 12.59 | 0.31 lb |
| Walleye | 7.19 | 1.75 lb |
| Black Crappie | 7.00 | 0.33 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
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
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.405 m/yr | 3 |
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
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.
Graded lakes near Hattie Lake
Hattie Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Stevens County
Frequently asked questions about Hattie Lake
What is the water quality grade for Hattie Lake?
- Hattie Lake in Stevens County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 3.5 ft visibility. Maximum depth: 9 ft. Surface area: 459.13 acres.
Is Hattie Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Hattie 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 Hattie Lake?
- Hattie Lake typically sits around 76°F at the surface in August, 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.
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.
Explore Hattie Lake across LakeGrade
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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)
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