Holbrook Reservoir
Holbrook Reservoir in Otero County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 550 acres.
- Area
- 550 acres
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Why Holbrook 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 Holbrook 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.
Holbrook Reservoir is a 550-acre lake in Otero County, Colorado.
Source: EPA Water Quality Portal sampling records, CDPHE, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Holbrook Reservoir water quality
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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 Holbrook 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 Holbrook Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Holbrook Reservoir in Otero 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 Holbrook Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 550 acres |
No bathymetric survey has been published for Holbrook Reservoir, so its depth is not documented here.
Recreation & Access
- Holbrook Reservoir State Wildlife AreaPublic
- Holbrook Reservoir State Wildlife AreaPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Holbrook Reservoir
Nearby Lakes in Otero County
Frequently asked questions about Holbrook Reservoir
Where is Holbrook Reservoir?
- Holbrook Reservoir is a lake in Otero 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 Holbrook Reservoir?
- Holbrook Reservoir in Otero County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 550 acres.
Is Holbrook Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Holbrook Reservoir 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 Holbrook Reservoir?
- Holbrook Reservoir has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Holbrook Reservoir State Wildlife Area, Holbrook Reservoir State Wildlife Area.
Explore Holbrook Reservoir across LakeQuality
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Where this data comes from
Measurements for Holbrook Reservoir 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