Little Grass Valley Reservoir
Little Grass Valley Reservoir in Plumas County, California is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 1394 acres.
- Area
- 1,394 acres
- Public access
- Yes
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Why Little Grass Valley 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 Little Grass Valley 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.
Little Grass Valley Reservoir is a 1,394-acre lake in Plumas County, California. Limited fish-species data available. Public access is available with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Little Grass Valley 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 Little Grass Valley 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 Little Grass Valley Reservoir
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Top-rated places to stay near Little Grass Valley Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 1,394 acres |
| Public Access | Yes |
No bathymetric survey has been published for Little Grass Valley Reservoir, so its depth is not documented here.
Recreation & Access
- Little Grass Valley (Peninsula)Public
- Little Grass Valley (Black Rock Tent Camp)Public
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Little Grass Valley Reservoir
Nearby Lakes in Plumas County
Frequently asked questions about Little Grass Valley Reservoir
Where is Little Grass Valley Reservoir?
- Little Grass Valley Reservoir is a lake in Plumas 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 Little Grass Valley Reservoir?
- Little Grass Valley Reservoir in Plumas County, California is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 1394 acres.
Is Little Grass Valley Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Little Grass Valley 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 Little Grass Valley Reservoir?
- Little Grass Valley Reservoir has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Little Grass Valley (Peninsula), Little Grass Valley (Black Rock Tent Camp). Public access is listed as yes.
Explore Little Grass Valley Reservoir across LakeQuality
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Where this data comes from
Measurements for Little Grass Valley 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