Blake Falls Reservoir
Blake Falls Reservoir in St. Lawrence County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 631 acres.
- Area
- 631 acres
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Why Blake Falls 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 Blake Falls 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.
Blake Falls Reservoir is a 631-acre lake in St. Lawrence 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 Blake Falls 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 Blake Falls Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Blake Falls Reservoir in St. Lawrence 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 | 631 acres |
No bathymetric survey has been published for Blake Falls Reservoir, so its depth is not documented here.
Fishing Blake Falls Reservoir
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Frequently asked questions about Blake Falls Reservoir
Where is Blake Falls Reservoir?
- Blake Falls Reservoir is a lake in St. Lawrence 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 Blake Falls Reservoir?
- Blake Falls Reservoir in St. Lawrence County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 631 acres.
Is Blake Falls Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Blake Falls 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 Blake Falls Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.