Silver Lake
St. Lawrence 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.
- 45 ft max depth
- Public access
- Limited data
Silver Lake in St. Lawrence County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 15.1 ft visibility.
- Clarity
- 15.1 ft
- Max depth
- ~45 ft est.
- Public access
- Yes
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Watch Silver Lake’s letter
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Why Silver Lake has no grade
Silver 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, Silver Lake is Not Rated — not an F. Its 15.1-foot median from 7 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.
Silver Lake is a lake in St. Lawrence County, New York with an estimated average depth of about 45 feet. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, NYSDEC, last sampled 2020-09-18. Grade methodology: LakeQuality methodology.
What Silver Lake is good for
From access and monitoring records, not editorial picks.
- Clear water15.1 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 Silver Lake
These readings exist but are not enough for an A–F grade — see why.
Crystal clear, you can see 15.1 ft down. TSI 38.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 15.1 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 38 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~45 ft est. |
| Average Depth | ~15 ft est. |
| Public Access | Yes |
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 Silver 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 Silver Lake
Graded lakes near Silver Lake
Silver Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in St. Lawrence County
Frequently asked questions about Silver Lake
Where is Silver Lake?
- Silver Lake is a lake in St. Lawrence 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 Silver Lake?
- Silver Lake in St. Lawrence County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 15.1 ft visibility.
Is Silver Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Silver Lake?
- No published bathymetric survey covers Silver Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 45 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Explore Silver Lake across LakeQuality
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Where this data comes from
7 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
NALMS7 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
Lake size & watershed from HydroLAKES (HydroSHEDS)