Shawnee Twin Lake
Pottawatomie County, OklahomaView mapDirections
Oklahoma DEQ publishes the water-quality measurements for Shawnee Twin Lake. Here is what has been measured.
- Limited data
Ask about Shawnee Twin Lake
Answers come straight from the public measurements and survey records on this page.
Shawnee Twin Lake in Pottawatomie County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 3 ft visibility.
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Shawnee Twin Lake is a lake in Pottawatomie County, Oklahoma. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2024-11-13. Grade methodology: LakeQuality methodology.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Shawnee Twin Lake is safe to swim in today is a call for the Oklahoma Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Shawnee Twin Lake
These are the measurements Oklahoma DEQ publishes for Shawnee Twin Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 3 ft of visibility. TSI 62.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 ft | Measured, not scored |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 62 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Fishing Shawnee Twin Lake
Water Quality Trend: ↑ Improving
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +4.188 m/yr | 5 |
Nearby Lakes in Pottawatomie County
Frequently asked questions about Shawnee Twin Lake
Where is Shawnee Twin Lake?
- Shawnee Twin Lake is a lake in Pottawatomie County, Oklahoma. Its water-quality measurements are published by Oklahoma DEQ and shown on this page as reported.
What is the water quality of Shawnee Twin Lake?
- Shawnee Twin Lake in Pottawatomie County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 3 ft visibility.
Is Shawnee Twin Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Shawnee Twin Lake across LakeQuality
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Where this data comes from
115 measurements from 7 monitoring stations, 2016–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- OWRB Lakes Monitoring
OKWRB-LAKES_WQX115 samples · 2016–2024
Analytical methods
- OWRB Lakes Field Data Collection
- Determination of Turbidity
Monitoring station identifiers (7)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.