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LakeQuality

Gleasons Pond

Middlesex County, MassachusettsView mapDirections

F
Algae-prone

Nutrients and algae run well above the regional average.

Water temp
No reading
No gauge
Clarity
No reading
No sample
Level
No reading
No gauge
Trend
No reading
Not enough history
  • Hypereutrophic
  • Impaired · Algal growth
  • #9 of 11 in the county
  • Public access
  • Limited data
See the measurementsDirectionsWhere to stay

Gleasons Pond in Middlesex County, Massachusetts has a water quality grade of F (Algae-prone). Chlorophyll-a (algae): 43.9 µg/L.

Type
Hypereutrophic
Chlorophyll-a
43.9 µg/L
Public access
Yes
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Stays via Stay22

Stays near Gleasons Pond

Compare lakeside cabins, hotels, and vacation rentals near Gleasons Pond in Middlesex County, Massachusetts — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water. The water-quality grade measures nutrients and algae, not lodging — cabins and rentals around Gleasons Pond are listed below.

Top-rated places to stay near Gleasons Pond

Prices for Sep 11–13, 4 adults. Change dates on the map below.

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Watch Gleasons Pond’s letter

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Gleasons Pond is a highly nutrient-loaded hypereutrophic lake in Middlesex County, Massachusetts. Water quality is graded F based on 1 sampling years through 2017. Limited fish-species data available. Public access is available. Compared to the 10 other monitored lakes in Middlesex County, Gleasons Pond ranks #9 for water quality.

Source: EPA Water Quality Portal sampling records, MassDEP, last sampled 2017-09-26. Grade methodology: LakeQuality methodology.

Swimming Safety

Grade only

Limited data

Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.

The F is nutrients and algae, not a swimming clearance. Gleasons Pond is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, nuisance exotic species, turbidity. Check local advisories before you swim.

Get alerts for Gleasons Pond →

Water Quality Grade: F (Algae-prone)

No clarity data. Chlorophyll-a 43.9 µg/L. TSI 68. The letter is not a swimming clearance.

MetricValueGrade
Water Clarity (Secchi Depth)No recent samples
PhosphorusNo recent samples
Chlorophyll-a (Algae)43.9 µg/LPoor
Trophic State Index (TSI)68Hypereutrophic

Very high nutrients, dense algae, poor clarity

Fishing Gleasons Pond

EPA Impairment Status

Gleasons Pond is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).

Causes of impairment

Algal growthNuisance exotic speciesTurbidity

Source: EPA ATTAINS assessment unit MA82035 · Official waterbody report · Matched by proximity (1.26 km)

County Ranking

Ranked #9 of 11 lakes in Middlesex County

Nearby Lakes in Middlesex County

NRLearned Pond—View →NRFarm Pond—View →NRWaushakum Pond—View →NRBracket Reservoir (Number Two)—View →NRLake Cochituate—View →NRFisk Pond—View →

Frequently asked questions about Gleasons Pond

Where is Gleasons Pond?

Gleasons Pond is a lake in Middlesex County, Massachusetts. LakeQuality grades it F for nutrients and algae. The letter is not a swimming clearance.

What is the water quality grade for Gleasons Pond?

Gleasons Pond in Middlesex County, Massachusetts has a water quality grade of F (Algae-prone). Chlorophyll-a (algae): 43.9 µg/L.

Is Gleasons Pond safe to swim in?

The F is nutrients and algae, not a swimming clearance. Gleasons Pond is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, nuisance exotic species, turbidity. Check local advisories before you swim.

Explore Gleasons Pond across LakeQuality

Lake Fishing Forecast

Species activity outlook by water temperature and season

Massachusetts Lake Trips

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Other Grade F Lakes in Massachusetts

Bartlett Pond

Worcester County · Algae-prone

Furnace Pond

Plymouth County · Algae-prone

South Watuppa Pond

Bristol County · Algae-prone

Cooks Pond

Plymouth County · Algae-prone

Nashawannuck Pond

Hampshire County · Algae-prone

Mill Pond

Barnstable County · Algae-prone

Hypereutrophic Lakes in Massachusetts

Bartlett PondFurnace PondSouth Watuppa PondCooks Pond

Where this data comes from

3 measurements from 1 monitoring station, 2017. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Massachusetts Department of Environmental Protection (MassDEP)MASSDEP3 samples · 2017

Analytical methods

  • 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
Monitoring station identifiers (1)

Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.

Other records on this page

Impairment status from EPA ATTAINS 303(d) database