Los Banos Reservoir
Los Banos Reservoir in Merced County, California is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 469 acres.
- Area
- 469 acres
- Public access
- Yes
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Why Los Banos 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 Los Banos 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 your state environmental agency and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Los Banos Reservoir is a 469-acre lake in Merced County, California. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, your state environmental agency, 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 Los Banos 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 Los Banos Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Los Banos Reservoir in Merced County, California — 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 Los Banos Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 469 acres |
| Public Access | Yes |
No bathymetric survey has been published for Los Banos Reservoir, so its depth is not documented here.
Recreation & Access
- San Luis Reservoir State Recreation Area - Los Banos CreekPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Los Banos Reservoir
Nearby Lakes in Merced County
Frequently asked questions about Los Banos Reservoir
Where is Los Banos Reservoir?
- Los Banos Reservoir is a lake in Merced County, California. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Los Banos Reservoir?
- Los Banos Reservoir in Merced County, California is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 469 acres.
Is Los Banos Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Los Banos 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 Los Banos Reservoir?
- Los Banos Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include San Luis Reservoir State Recreation Area - Los Banos Creek. Public access is listed as yes.
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Where this data comes from
Measurements for Los Banos 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