Big Lake
Holt County, Missouri666 acresView mapDirections
Not enough samples to grade — no water-quality sampling on record for this lake. No letter yet. Here is what we do have.
Big Lake in Holt County, Missouri is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 666 acres.
- Area
- 666 acres
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Watch Big Lake’s letter
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Why Big Lake 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 Big Lake, 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 Missouri DNR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Big Lake is a 666-acre lake in Holt County, Missouri.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled recent years. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedElevated nutrients
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Big Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data. TSI 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) |
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 666 acres |
No bathymetric survey has been published for Big Lake, so its depth is not documented here.
Fishing Big Lake
Graded lakes near Big Lake
Big Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Holt County
Frequently asked questions about Big Lake
Where is Big Lake?
- Big Lake is a lake in Holt County, Missouri. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Big Lake?
- Big Lake in Holt County, Missouri is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 666 acres.
Is Big Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Explore Big Lake across LakeQuality
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Where this data comes from
Measurements for Big Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.