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LakeQuality

Farm Pond

Middlesex County, MassachusettsView mapDirections

MassDEP publishes the water-quality measurements for Farm Pond. Here is what has been measured.

Clarity
19.5 ft
Secchi · sampled 2021
Max depth
~33 ft est.
GLOBathy model
Trend
Declining
2 years of samples
  • Impaired · Noxious aquatic plants
  • 33 ft max depth
  • Limited data

Ask about Farm Pond

Answers come straight from the public measurements and survey records on this page.

Farm Pond in Middlesex County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Water clarity: 19.5 ft visibility.

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Farm Pond is a lake in Middlesex County, Massachusetts with an estimated average depth of about 33 feet. Overall water quality is declining over recent sampling years.

Source: EPA Water Quality Portal sampling records, MassDEP, last sampled 2021-07-11. Grade methodology: LakeQuality methodology.

What Farm Pond is good for

From access and monitoring records, not editorial picks.

  • Clear water19.5 ft of visibility

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Farm Pond is listed impaired under Clean Water Act §303(d) (IR 4A) for noxious aquatic plants, turbidity. Check local advisories before you swim.

Whether Farm Pond is safe to swim in today is a call for the Massachusetts Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Farm Pond

These are the measurements MassDEP publishes for Farm Pond, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

Crystal clear, you can see 19.5 ft down. TSI 34.

MetricValueEPA condition class
Water Clarity (Secchi Depth)19.5 ftMeasured, not scored
PhosphorusNo recent samples
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)34Oligotrophic

Low nutrients, clear water. No reading is a swimming clearance.

Lake Details

CharacteristicValue
Maximum Depth~33 ft est.
Average Depth~16 ft est.

Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Massachusetts has not published bathymetry for Farm Pond.

Lake Size & Watershed

Watershed (drainage) area
0 sq mi
Surface area
111 acres
Shoreline
1.6 mi
Elevation
157 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.

Fishing Farm Pond

Based on 2 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-1.3 m/yr2

EPA Impairment Status

Farm Pond is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).

Causes of impairment

Noxious aquatic plantsTurbidity

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit MA72070 · Official waterbody report · Matched by proximity (2.18 km)

Nearby Lakes in Middlesex County

Frequently asked questions about Farm Pond

Where is Farm Pond?

Farm Pond is a lake in Middlesex County, Massachusetts. Its water-quality measurements are published by MassDEP and shown on this page as reported.

What is the water quality of Farm Pond?

Farm Pond in Middlesex County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Water clarity: 19.5 ft visibility.

Is Farm Pond safe to swim in?

Nutrient and algae readings are not a swimming clearance. Farm Pond is listed impaired under Clean Water Act §303(d) (IR 4A) for noxious aquatic plants, turbidity. Check local advisories before you swim.

How deep is Farm Pond?

No published bathymetric survey covers Farm Pond, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 33 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.

Where this data comes from

2 measurements from 1 monitoring station, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • North American Lake Management SocietyNALMS2 samples · 2020–2021
Monitoring station identifiers (1)

EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.

Other records on this page

Impairment status from EPA ATTAINS 303(d) database

Lake size & watershed from HydroLAKES (HydroSHEDS)