Gurley Reservoir
Gurley Reservoir in San Miguel County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 319 acres.
- Area
- 319 acres
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Why Gurley 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 Gurley 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 CDPHE and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Gurley Reservoir is a 319-acre lake in San Miguel County, Colorado.
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 Gurley 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 Gurley Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Gurley Reservoir in San Miguel 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 Gurley Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 319 acres |
No bathymetric survey has been published for Gurley Reservoir, so its depth is not documented here.
Fishing Gurley Reservoir
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Frequently asked questions about Gurley Reservoir
Where is Gurley Reservoir?
- Gurley Reservoir is a lake in San Miguel 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 Gurley Reservoir?
- Gurley Reservoir in San Miguel County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 319 acres.
Is Gurley Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Gurley 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 Gurley Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.