Lake Pearl is a cold, clear oligotrophic lake in Norfolk County, Massachusetts. Water quality is graded A based on 1 sampling years through 2017. Compared to the 2 other monitored lakes in Norfolk County, Lake Pearl ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Massachusetts DNR, last sampled 2017-08-29. Grade methodology: LakeGrade methodology.
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Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
No clarity data. Chlorophyll-a: 1.8 µg/L. Trophic State Index: 36.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 1.8 µg/L | A |
| Trophic State Index (TSI) | 36 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Lake Pearl
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Fishing Lake Pearl
Location
County Ranking
Ranked #2 of 3 lakes in Norfolk County
Nearby Lakes in Norfolk County
Explore Lake Pearl across LakeGrade
Species activity outlook by water temperature and season
Where to stay at Massachusetts's top lakes, each with its grade
Low nutrients, clear water, excellent for swimming
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Grade A/B + low algae filter
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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
Most recent sample: 2017-08-29
Monitoring stations: 1