Hastings County, Ontario · Water Quality Report Card
Jarvis Lake
Jarvis Lake in Hastings, Ontario received a water quality grade of B (Good). Water clarity: 3 m visibility. Phosphorus: 18.1 µg/L.
- Clarity
- 3 m
- Type
- Mesotrophic
Jarvis Lake is a mesotrophic lake in Hastings County, Ontario. Water quality is graded B based on 2 sampling years through 2014. Compared to the 66 other monitored lakes in Hastings County, Jarvis Lake ranks #58 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2014-09-21. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 9.8 ft. Phosphorus level: 18.1 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 m | C |
| Phosphorus | 18.1 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
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Fishing Jarvis Lake
Location
County Ranking
Ranked #58 of 67 lakes in Hastings
Cleaner Lakes Within 30 Miles
Jarvis Lake holds Grade B. 5 nearby lakes hold higher grades.
- ATwin Sister LakeHastings · 10.7 mi · Higher grade (B → A)
- ABelmont LakePeterborough · 12 mi · Higher grade (B → A)
- ACrowe LakeHastings · 7.9 mi · Higher grade (B → A)
- ARylstone LakeHastings · 9 mi · Higher grade (B → A)
- ATwin Sisters LakesHastings · 10.8 mi · Higher grade (B → A)
Nearby Lakes in Hastings
Explore Jarvis Lake across LakeGrade
More Ontario Lake Rankings
Other Grade B Lakes in Ontario
Mesotrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Jarvis 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: 2014-09-21
Monitoring stations: