Boca Reservoir
Boca Reservoir in Nevada County, California is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 964 acres.
- Area
- 964 acres
- Public access
- Yes
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Why Boca 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 Boca 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.
Boca Reservoir is a 964-acre lake in Nevada 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.
Watch Boca 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 Boca 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 Boca Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Boca Reservoir in Nevada 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 Boca Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 964 acres |
| Public Access | Yes |
No bathymetric survey has been published for Boca Reservoir, so its depth is not documented here.
Recreation & Access
- Boca ReservoirPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Boca Reservoir
Nearby Lakes in Nevada County
Frequently asked questions about Boca Reservoir
Where is Boca Reservoir?
- Boca Reservoir is a lake in Nevada 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 Boca Reservoir?
- Boca Reservoir in Nevada County, California is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 964 acres.
Is Boca Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Boca 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 Boca Reservoir?
- Boca Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Boca Reservoir. Public access is listed as yes.
Explore Boca Reservoir across LakeQuality
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Where this data comes from
Measurements for Boca 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