Kalmbach Lake is a 94-acre highly nutrient-loaded hypereutrophic lake in LaMoure County, North Dakota with a maximum depth of 9 feet (6-foot average). Water quality is graded F based on 2 sampling years through 2021. The lake supports 1 documented fish species including Northern Pike. Public access is available with 1 public boat landing. Compared to the 3 other monitored lakes in LaMoure County, Kalmbach Lake ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, North Dakota DNR, last sampled 2021-10-08. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 0.7 ft of visibility. Chlorophyll-a: 73.8 µg/L. Trophic State Index: 78.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.7 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 73.8 µg/L | F |
| Trophic State Index (TSI) | 78 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 8.9 ft |
| Average Depth | 5.7 ft |
| Surface Area | 94 acres |
| Shoreline Length | 3.1 mi |
| Public Access | Yes |
Where to stay near Kalmbach Lake
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Fish Species
Click a species to see every graded lake where it is documented.
Fishing Kalmbach Lake
Recreation & Access
Water Temperature
Kalmbach Lake averages about 61°F at the surface in summer, usually warmest in Aug (about 62°F) and coldest in May (about 46°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 12 field readings (2021–2021) via the EPA Water Quality Portal. See the full Kalmbach Lake water temperature breakdown →
Location
County Ranking
Ranked #4 of 4 lakes in LaMoure County
Cleaner Lakes Within 30 Miles
Kalmbach Lake holds Grade F. 3 nearby lakes hold higher grades.
- CKulm-Edgeley Dam LakeLaMoure County · 14.7 mi · Two grade letters higher (F → C)
- CBader LakeStutsman County · 26.1 mi · Two grade letters higher (F → C)
- CHehn-Schaffer LakeStutsman County · 14.1 mi · Two grade letters higher (F → C)
Nearby Lakes in LaMoure County
Explore Kalmbach Lake across LakeGrade
Fish species and top-graded lakes across North Dakota
Fish species and best lakes in LaMoure County
Species activity outlook by water temperature and season
Where to stay at North Dakota's top lakes, each with its grade
Very high nutrients, dense algae, poor clarity
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Other Grade F Lakes in North Dakota
Hypereutrophic Lakes in North Dakota
More records, surveys & data sources
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Data Sources
Water quality data from the EPA Water Quality Portal
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Depth, fish, and access data from North Dakota Game & Fish
Public boat-access points from the USGS National Boat Ramps inventory
Most recent sample: 2021-10-08
Monitoring stations: 1