La Jara Reservoir
La Jara Reservoir in Conejos County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 721 acres.
- Area
- 721 acres
- Public access
- Yes
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Why La Jara 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 La Jara 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.
La Jara Reservoir is a 721-acre lake in Conejos County, Colorado. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, CDPHE, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch La Jara 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 La Jara 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 La Jara Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 721 acres |
| Public Access | Yes |
No bathymetric survey has been published for La Jara Reservoir, so its depth is not documented here.
Recreation & Access
- Trujillo Meadows State Wildlife AreaPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing La Jara Reservoir
Nearby Lakes in Conejos County
Frequently asked questions about La Jara Reservoir
Where is La Jara Reservoir?
- La Jara Reservoir is a lake in Conejos 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 La Jara Reservoir?
- La Jara Reservoir in Conejos County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 721 acres.
Is La Jara Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. La Jara 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 La Jara Reservoir?
- La Jara Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Trujillo Meadows State Wildlife Area. Public access is listed as yes.
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Where this data comes from
Measurements for La Jara 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