West Branch Reservoir
West Branch Reservoir in Putnam County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 764 acres.
- Area
- 764 acres
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Why West Branch Reservoir has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For West Branch Reservoir, no water-quality sampling on record for this lake.
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by NYSDEC and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
West Branch Reservoir is a 764-acre lake in Putnam County, New York.
Source: EPA Water Quality Portal sampling records, NYSDEC, last sampled recent years. Grade methodology: LakeQuality methodology.
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for West Branch Reservoir
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near West Branch Reservoir
Compare lakeside cabins, hotels, and vacation rentals near West Branch Reservoir in Putnam County, New York — 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.
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 764 acres |
No bathymetric survey has been published for West Branch Reservoir, so its depth is not documented here.
Fishing West Branch Reservoir
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Frequently asked questions about West Branch Reservoir
Where is West Branch Reservoir?
- West Branch Reservoir is a lake in Putnam County, New York. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for West Branch Reservoir?
- West Branch Reservoir in Putnam County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 764 acres.
Is West Branch Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. West Branch Reservoir is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
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Where this data comes from
Measurements for West Branch Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.