West Branch Walker Brook Lake
Berkshire County, Massachusetts65 acresView mapDirections
MassDEP publishes the water-quality measurements for West Branch Walker Brook Lake. Here is what has been measured.
- Mesotrophic
- 32 ft max depth
- Limited data
West Branch Walker Brook Lake in Berkshire County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Chlorophyll-a (algae): 2.5 µg/L. Surface area: 65 acres.
West Branch Walker Brook Lake is a 65-acre mesotrophic lake in Berkshire County, Massachusetts with an estimated average depth of about 32 feet. Compared to the 7 other monitored lakes in Berkshire County, West Branch Walker Brook Lake ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, MassDEP, last sampled 2016-09-21. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether West Branch Walker Brook Lake 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.
Water quality measurements for West Branch Walker Brook Lake
These are the measurements MassDEP publishes for West Branch Walker Brook Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Chlorophyll-a 2.5 µg/L. TSI 40.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | 2.5µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 40 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about West Branch Walker Brook Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~32 ft est.
Surface area
65 acres
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Massachusetts has not published bathymetry for West Branch Walker Brook Lake.
Lake Size & Watershed
Watershed (drainage) area
1 sq mi
HydroLAKES / HydroSHEDS
Shoreline
1.7 mi
HydroLAKES / HydroSHEDS
Elevation
1,552 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.
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Fishing West Branch Walker Brook Lake
Reservoir Info (USACE NID)
West Branch Walker Brook Lake is a man-made reservoir impounded by the Robin Hood Lake Dam (completed 2013), built primarily for recreation on the West Branch Walker Brook; earth-type dam, 17 ft tall and 250 ft long.
- Surface area
- 65 ac
- Normal storage
- 362 ac-ft
- Max storage
- 490 ac-ft
- Drainage area
- 1.9 sq mi
- Hazard class
- Significant
- Owner
- Sherwood Forest Lake District
Source: USACE National Inventory of Dams, NID ID MA00206 · Operator website · Matched by proximity (0.04 km)
Nearby Lakes in Berkshire County
Frequently asked questions about West Branch Walker Brook Lake
Where is West Branch Walker Brook Lake?
- West Branch Walker Brook Lake is a lake in Berkshire County, Massachusetts. Its water-quality measurements are published by MassDEP and shown on this page as reported.
What is the water quality of West Branch Walker Brook Lake?
- West Branch Walker Brook Lake in Berkshire County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Chlorophyll-a (algae): 2.5 µg/L. Surface area: 65 acres.
Is West Branch Walker Brook Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is West Branch Walker Brook Lake?
- No published bathymetric survey covers West Branch Walker Brook Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 32 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 65 acres.
Explore West Branch Walker Brook Lake across LakeQuality
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Where this data comes from
3 measurements from 1 monitoring station, 2016. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Massachusetts Department of Environmental Protection (MassDEP)
MASSDEP3 samples · 2016
Analytical methods
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
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
Lake size & watershed from HydroLAKES (HydroSHEDS)