Seven Lakes Reservoir
Seven Lakes Reservoir in Las Animas County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 265 acres.
- Area
- 265 acres
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Why Seven Lakes 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 Seven Lakes 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.
Seven Lakes Reservoir is a 265-acre lake in Las Animas 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 Seven Lakes 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 Seven Lakes Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Seven Lakes Reservoir in Las Animas 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 Seven Lakes Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 265 acres |
No bathymetric survey has been published for Seven Lakes Reservoir, so its depth is not documented here.
Fishing Seven Lakes Reservoir
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Frequently asked questions about Seven Lakes Reservoir
Where is Seven Lakes Reservoir?
- Seven Lakes Reservoir is a lake in Las Animas 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 Seven Lakes Reservoir?
- Seven Lakes Reservoir in Las Animas County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 265 acres.
Is Seven Lakes Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Seven Lakes 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 Seven Lakes Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.