Spavinaw Lake is a productive, nutrient-rich eutrophic lake in Mayes County, Oklahoma. Water quality is graded C based on 1 sampling years through 2023. Compared to the 5 other monitored lakes in Mayes County, Spavinaw Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Oklahoma DNR, last sampled 2023-11-06. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Very murky, less than 3.3 ft of visibility. Phosphorus level: 41 µg/L. Trophic State Index: 59.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.3 ft | D |
| Phosphorus | 41 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 59 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Spavinaw Lake
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Fishing Spavinaw Lake
Location
County Ranking
Ranked #1 of 6 lakes in Mayes County
Nearby Lakes in Mayes County
Explore Spavinaw Lake across LakeGrade
More Oklahoma Lake Rankings
Other Grade C Lakes in Oklahoma
Eutrophic 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: 2023-11-06
Monitoring stations: 6