Mountain Meadows Reservoir
Mountain Meadows Reservoir in Lassen County, California is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 4840 acres.
- Area
- 4,840 acres
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Why Mountain Meadows 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 Mountain Meadows 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.
Mountain Meadows Reservoir is a 4,840-acre lake in Lassen County, California.
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 Mountain Meadows 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 Mountain Meadows Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Mountain Meadows Reservoir in Lassen 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 Mountain Meadows Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 4,840 acres |
No bathymetric survey has been published for Mountain Meadows Reservoir, so its depth is not documented here.
Fishing Mountain Meadows Reservoir
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Frequently asked questions about Mountain Meadows Reservoir
Where is Mountain Meadows Reservoir?
- Mountain Meadows Reservoir is a lake in Lassen 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 Mountain Meadows Reservoir?
- Mountain Meadows Reservoir in Lassen County, California is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 4840 acres.
Is Mountain Meadows Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Mountain Meadows Reservoir is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
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Where this data comes from
Measurements for Mountain Meadows Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.