Glen Lake
Warren County, New YorkView mapDirections
Not Rated: one monitoring station are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- 50 ft max depth
- Limited data
Glen Lake in Warren County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 16 ft visibility.
- Clarity
- 16 ft
- Max depth
- ~50 ft est.
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Stays near Glen Lake
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Watch Glen Lake’s letter
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Why Glen Lake has no grade
Glen Lake has monitoring on record from one station, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Glen Lake is Not Rated — not an F. Its 16-foot median from 8 readings collected 2020 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. 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.
Glen Lake is a lake in Warren County, New York with an estimated average depth of about 50 feet.
Source: EPA Water Quality Portal sampling records, NYSDEC, last sampled 2020-09-27. Grade methodology: LakeQuality methodology.
What Glen Lake is good for
From access and monitoring records, not editorial picks.
- Clear water16 ft of visibility
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Glen Lake
These readings exist but are not enough for an A–F grade — see why.
Crystal clear, you can see 16 ft down. TSI 37.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 16 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 37 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~50 ft est. |
| Average Depth | ~20 ft est. |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. New York has not published bathymetry for Glen Lake.
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 Glen Lake
Regulated Pollution Sources Nearby
7 EPA-permitted facilities operate within about 5 miles of Glen Lake under Clean Water Act (NPDES) discharge permits, including 3 classified by the EPA as major dischargers. 3 facilities have a reported Clean Water Act violation in the past three years.
- Finch Paper, LlcGlens Falls · 4.3 mi away · NPDES NY0005525MajorRecent violation
- Essity Professional Hygiene North America LlcSouth Glens Falls · 4.4 mi away · NPDES NY0007226MajorRecent violation
- Glens Falls (C) WwtpGlens Falls · 4.7 mi away · NPDES NY0029050MajorRecent violation
- Northway PlazaQueensbury · 2.2 mi away · NPDES NY0251704
- King Phillips CampgroundLake George, Town Of · 2.4 mi away · NPDES NY0296643
- Nys Route 9N Self StorageLake George · 3.4 mi away · NPDES NY0296724
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Nearby Lakes in Warren County
Frequently asked questions about Glen Lake
Where is Glen Lake?
- Glen Lake is a lake in Warren County, New York. LakeQuality has not rated this lake (UNRATED) — the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity.
What is the water quality grade for Glen Lake?
- Glen Lake in Warren County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 16 ft visibility.
Is Glen Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Glen Lake?
- No published bathymetric survey covers Glen Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 50 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
8 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North American Lake Management Society
NALMS8 samples · 2020
Monitoring station identifiers (1)
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)