Upper Blenheim Gilboa Reservoir
Upper Blenheim Gilboa Reservoir in Schoharie County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 371 acres.
- Area
- 371 acres
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Why Upper Blenheim Gilboa 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 Upper Blenheim Gilboa 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.
Upper Blenheim Gilboa Reservoir is a 371-acre lake in Schoharie 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 Upper Blenheim Gilboa 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 Upper Blenheim Gilboa Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 371 acres |
No bathymetric survey has been published for Upper Blenheim Gilboa Reservoir, so its depth is not documented here.
Fishing Upper Blenheim Gilboa Reservoir
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Frequently asked questions about Upper Blenheim Gilboa Reservoir
Where is Upper Blenheim Gilboa Reservoir?
- Upper Blenheim Gilboa Reservoir is a lake in Schoharie 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 Upper Blenheim Gilboa Reservoir?
- Upper Blenheim Gilboa Reservoir in Schoharie County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 371 acres.
Is Upper Blenheim Gilboa Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Upper Blenheim Gilboa 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 Upper Blenheim Gilboa Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.