Colby Horse Park Reservoir
Colby Horse Park Reservoir in Mesa County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 48 acres.
- Area
- 48 acres
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Why Colby Horse Park 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 Colby Horse Park 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.
Colby Horse Park Reservoir is a 48-acre lake in Mesa 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 Colby Horse Park 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 Colby Horse Park Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Colby Horse Park Reservoir in Mesa 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 Colby Horse Park Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 48 acres |
No bathymetric survey has been published for Colby Horse Park Reservoir, so its depth is not documented here.
Fishing Colby Horse Park Reservoir
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Frequently asked questions about Colby Horse Park Reservoir
Where is Colby Horse Park Reservoir?
- Colby Horse Park Reservoir is a lake in Mesa 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 Colby Horse Park Reservoir?
- Colby Horse Park Reservoir in Mesa County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 48 acres.
Is Colby Horse Park Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Colby Horse Park 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 Colby Horse Park Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.