Lake Sardis Clayton is a highly nutrient-loaded hypereutrophic lake in Pushmataha County, Oklahoma. Water quality is graded F based on 1 sampling years through 2026. Compared to the 1 other monitored lakes in Pushmataha County, Lake Sardis Clayton ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Oklahoma DNR, last sampled 2026-03-25. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
No clarity data. Phosphorus level: 260 µg/L. Trophic State Index: 84.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 260 µg/L | F |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 84 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
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Fishing Lake Sardis Clayton
Location
County Ranking
Ranked #2 of 2 lakes in Pushmataha County
Cleaner Lakes Within 30 Miles
Lake Sardis Clayton holds Grade F. One nearby lake has a higher grade.
Nearby Lakes in Pushmataha County
Explore Lake Sardis Clayton across LakeGrade
More Oklahoma Lake Rankings
Other Grade F Lakes in Oklahoma
Hypereutrophic Lakes in Oklahoma
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2026-03-25
Monitoring stations: 3