West Mountain Pond
Essex County, VermontView mapDirections
Nutrients and algae sit mid-range for this region.
↓ down from A at the last regrade
- Mesotrophic
- #9 of 9 in the county
- 52 ft max depth
- Limited data
West Mountain Pond in Essex County, Vermont has a water quality grade of C (Fair). Phosphorus: 16.9 µg/L. Chlorophyll-a (algae): 7.8 µg/L.
- Max depth
- ~52 ft est.
- Type
- Mesotrophic
- Phosphorus
- 16.9 µg/L
- Chlorophyll-a
- 7.8 µg/L
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Watch West Mountain Pond’s letter
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West Mountain Pond is a mesotrophic lake in Essex County, Vermont with an estimated average depth of about 52 feet. Water quality is graded C based on 1 sampling years through 2022. 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. Grade methodology: LakeQuality methodology.
Swimming Safety
Grade onlyLimited 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 C is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: C (Fair)
No clarity data. Phosphorus 16.9 µg/L. Chlorophyll-a 7.8 µg/L. TSI 48. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 16.9 µg/L | Fair |
| Chlorophyll-a (Algae) | 7.8 µg/L | Not graded |
| Trophic State Index (TSI) | 48 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~52 ft est. |
| Average Depth | ~12 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
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 West Mountain Pond
County Ranking
Ranked #9 of 9 lakes in Essex County
Nearby Lakes With Higher Grades
West Mountain Pond holds Grade C. One nearby lake has a higher nutrient-and-algae grade — useful for a swim day, not a reason to skip lodging here.
Nearby Lakes in Essex County
Frequently asked questions about West Mountain Pond
Where is West Mountain Pond?
- West Mountain Pond is a lake in Essex County, Vermont. LakeQuality grades it C for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for West Mountain Pond?
- West Mountain Pond in Essex County, Vermont has a water quality grade of C (Fair). Phosphorus: 16.9 µg/L. Chlorophyll-a (algae): 7.8 µg/L.
Is West Mountain Pond safe to swim in?
- The C is nutrients and algae, 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.
Explore West Mountain Pond across LakeQuality
More Vermont Lake Rankings
Other Grade C Lakes in Vermont
Mesotrophic Lakes in Vermont
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)
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
Lake size & watershed from HydroLAKES (HydroSHEDS)