West Mountain Pond
Essex County, VermontView mapDirections
Vermont DEC publishes the water-quality measurements for West Mountain Pond. Here is what has been measured.
- Mesotrophic
- 52 ft max depth
- Limited data
West Mountain Pond in Essex County, Vermont has water-quality measurements published by Vermont DEC, shown here as reported. Phosphorus: 16.9 µg/L. Chlorophyll-a (algae): 7.8 µg/L.
West Mountain Pond is a mesotrophic lake in Essex County, Vermont with an estimated average depth of about 52 feet. Compared to the 8 other monitored lakes in Essex County, West Mountain Pond ranks #9 for water quality.
Source: EPA Water Quality Portal sampling records, VT DEC, last sampled 2022-08-18. 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 Mountain Pond is safe to swim in today is a call for the Vermont Department of Environmental Conservation and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for West Mountain Pond
These are the measurements Vermont DEC publishes for West Mountain Pond, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 16.9 µg/L. Chlorophyll-a 7.8 µg/L. TSI 48.
| 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 | 16.9µg/L | Fair GoodFairPoor |
| Chlorophyll-a (algae) | 7.8µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 48 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about West Mountain Pond
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~52 ft est.
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Vermont has not published bathymetry for West Mountain Pond.
Lake Size & Watershed
Watershed (drainage) area
4 sq mi
HydroLAKES / HydroSHEDS
Surface area
44 acres
HydroLAKES / HydroSHEDS
Shoreline
1.1 mi
HydroLAKES / HydroSHEDS
Elevation
1,234 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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Frequently asked questions about West Mountain Pond
Where is West Mountain Pond?
- West Mountain Pond is a lake in Essex County, Vermont. Its water-quality measurements are published by Vermont DEC and shown on this page as reported.
What is the water quality of West Mountain Pond?
- West Mountain Pond in Essex County, Vermont has water-quality measurements published by Vermont DEC, shown here as reported. Phosphorus: 16.9 µg/L. Chlorophyll-a (algae): 7.8 µg/L.
Is West Mountain Pond safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is West Mountain Pond?
- No published bathymetric survey covers West Mountain Pond, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 52 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
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Where this data comes from
10 measurements from 4 monitoring stations, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Vermont Dept of Environmental Conservation
1VTDECWQ10 samples · 2022
Analytical methods
- EPA approved Alternate Test Procedure for 4500 P H. Has a 28 day hold without acid preservation.
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
- 2130 B ~ Nephelometric Method
Monitoring station identifiers (4)
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)