Pershing State Park Lake
Linn County, MissouriView mapDirections
Not enough samples to grade — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). No letter yet. Here is what we do have.
- Limited data
Pershing State Park Lake in Linn County, Missouri is not rated for water quality — its monitoring record does not meet the evidence bar.
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Why Pershing State Park 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 Pershing State Park Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
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.
Pershing State Park Lake is a lake in Linn County, Missouri.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2023-12-07. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Pershing State Park Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Fishing Pershing State Park Lake
Regulated Pollution Sources Nearby
2 EPA-permitted facilities operate within about 5 miles of Pershing State Park Lake under Clean Water Act (NPDES) discharge permits. 2 facilities have a reported Clean Water Act violation in the past three years.
- Mdnr, Pershing State ParkLaclede · 0.4 mi away · NPDES MO0051748Recent violation
- Laclede WwtfLaclede · 3.2 mi away · NPDES MO0092932Recent violation
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Graded lakes near Pershing State Park Lake
Pershing State Park Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Linn County
Frequently asked questions about Pershing State Park Lake
Where is Pershing State Park Lake?
- Pershing State Park Lake is a lake in Linn County, Missouri. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Pershing State Park Lake?
- Pershing State Park Lake in Linn County, Missouri is not rated for water quality — its monitoring record does not meet the evidence bar.
Is Pershing State Park Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Explore Pershing State Park Lake across LakeQuality
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Other Lakes in Missouri
Where this data comes from
2 measurements from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Missouri Dept. of Natural Resources
MDNR2 samples · 2023
Analytical methods
- Nitrogen and Phosphorus, Total, Whole-water, Alkaline Persulfate Digest
- Turbidity by Nephelometry
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Regulated discharger data from EPA ECHO (ICIS-NPDES)