Lake Quality

Trowbridge/Leek Lake Association



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Lake Water Quality Summary Information

Physical Information

Name: Leek (Trowbridge)
DNR Lake ID number: 56-0532
Location from nearest town: 4 MI NW OF VERGAS
Latitude/Longitude: 46.68/-95.86113889
Ecoregion: NCHF
Basin: RD
Hydrologic Unit Code: 9020103
Surface Area: 609 (acres)
Maximum depth: 76 (feet)
Water Body Type: P


  degrees minutes seconds decimal degrees  X YUTM 281189 5173576

Lake Water Quality Assessment

Monitored or Evaluated: Monitored
Data Quality: Excell
Aquatic Recreation Use Support: FS

Lake Water Quality Data Summary

Total Phosphorus Mean: 17 ppb (parts per billion)
Total Phosphorus Standard Error: 2 ppb
Total Phosphorus # of Observations: 19
Total Phosphorus Minimum: 7 ppb and Maximum: 35 ppb

Chlorophyll-a Mean: 4.6 ppb
Chlorophyll-a Standard Error: 0 ppb
Chlorophyll-a # of Observations: 19
Chlorophyll-a Minimum: 1 ppb and Maximum: 8 ppb

Secchi Disk Mean: 3.9 meters
Secchi Disk Standard Error: 0 meters
Secchi Disk # of Observations: 97
Secchi Disk Minimum: 2 meters and Maximum: 6 meters

Alkalinity Mean: ppm (parts per million)
Alkalinity # of Observations: 0

Color Mean: Platinum-cobalt Units
Color # of Observations: 0

Carlson Trophic Status for Total Phosphorus: 45
Carlson Trophic Status for Chlorophyll-a: 46
Carlson Trophic Status for Secchi Disk: 40
Overall Trophic Status: M
(O=oligotrophic, M=mesotrophic, E=eutrophic, H=hypereutrophic)

See the Difference! Oligotrophic vs. Hypereutrophic

Watch how lakes change over the summer.

Compare this lake to reference lakes or all assessed lakes.

This page was last updated September 22, 2004

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