Kenora District County, Ontario · Water Quality Report Card
Gullrock Lake
Gullrock Lake in Kenora District, Ontario received a water quality grade of C (Fair). Water clarity: 2 m visibility. Phosphorus: 21.1 µg/L.
- Clarity
- 2 m
- Type
- Mesotrophic
Gullrock Lake is a mesotrophic lake in Kenora District County, Ontario. Water quality is graded C based on 2 sampling years through 2019. Compared to the 341 other monitored lakes in Kenora District County, Gullrock Lake ranks #301 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2019-05-21. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 6.6 ft. Phosphorus level: 21.1 µg/L. Trophic State Index: 49.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2 m | D |
| Phosphorus | 21.1 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 49 | Mesotrophic |
Moderate nutrients, good water quality
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Fishing Gullrock Lake
Location
County Ranking
Ranked #301 of 342 lakes in Kenora District
Cleaner Lakes Within 30 Miles
Gullrock Lake holds Grade C. 2 nearby lakes hold higher grades.
- BKeg LakeKenora District · 4.3 mi · Higher grade (C → B)
- BBruce LakeKenora District · 16.7 mi · Higher grade (C → B)
Nearby Lakes in Kenora District
Explore Gullrock Lake across LakeGrade
More Ontario Lake Rankings
Other Grade C Lakes in Ontario
Mesotrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Gullrock Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Data Sources
Water quality data from the EPA Water Quality Portal
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2019-05-21
Monitoring stations: