Maria Reservoir
Maria Reservoir in Huerfano County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 190 acres.
- Area
- 190 acres
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Why Maria 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 Maria 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.
Maria Reservoir is a 190-acre lake in Huerfano County, Colorado.
Source: EPA Water Quality Portal sampling records, CDPHE, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Maria 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 Maria 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 Maria Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Maria Reservoir in Huerfano 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 Maria Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 190 acres |
No bathymetric survey has been published for Maria Reservoir, so its depth is not documented here.
Fishing Maria Reservoir
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Frequently asked questions about Maria Reservoir
Where is Maria Reservoir?
- Maria Reservoir is a lake in Huerfano 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 Maria Reservoir?
- Maria Reservoir in Huerfano County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 190 acres.
Is Maria Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Maria Reservoir is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Maria Reservoir across LakeQuality
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Where this data comes from
Measurements for Maria Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.