Gallagher Canyon Reservoir is a productive, nutrient-rich eutrophic lake in Dawson County, Nebraska. Water quality is graded D based on 1 sampling years through 2013. Compared to the 2 other monitored lakes in Dawson County, Gallagher Canyon Reservoir ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Nebraska DNR, last sampled 2013-08-21. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Very murky, less than 1.3 ft of visibility. Chlorophyll-a: 35.6 µg/L. Trophic State Index: 70.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.3 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 35.6 µg/L | D |
| Trophic State Index (TSI) | 70 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Gallagher Canyon Reservoir
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Fishing Gallagher Canyon Reservoir
Location
County Ranking
Ranked #2 of 3 lakes in Dawson County
Cleaner Lakes Within 30 Miles
Gallagher Canyon Reservoir holds Grade D. 2 nearby lakes hold higher grades.
Nearby Lakes in Dawson County
Explore Gallagher Canyon Reservoir across LakeGrade
More Nebraska Lake Rankings
Other Grade D Lakes in Nebraska
Eutrophic Lakes in Nebraska
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2013-08-21
Monitoring stations: 1