Sylvan Lake
Sylvan Lake in Eagle County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 44 acres.
- Area
- 44 acres
- Public access
- Yes
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Why Sylvan Lake 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 Sylvan Lake, 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 CDPHE and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Sylvan Lake is a 44-acre lake in Eagle County, Colorado. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, CDPHE, 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 Sylvan Lake
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 Sylvan Lake
Compare lakeside cabins, hotels, and vacation rentals near Sylvan Lake in Eagle County, Colorado — 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.
Top-rated places to stay near Sylvan Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 44 acres |
| Public Access | Yes |
No bathymetric survey has been published for Sylvan Lake, so its depth is not documented here.
Recreation & Access
- Sylvan Lake State ParkPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Sylvan Lake
Nearby Lakes in Eagle County
Frequently asked questions about Sylvan Lake
Where is Sylvan Lake?
- Sylvan Lake is a lake in Eagle County, Colorado. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Sylvan Lake?
- Sylvan Lake in Eagle County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 44 acres.
Is Sylvan Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Sylvan Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Sylvan Lake?
- Sylvan Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Sylvan Lake State Park. Public access is listed as yes.
Explore Sylvan Lake across LakeQuality
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Where this data comes from
Measurements for Sylvan Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory