Mountain Lake
Noble County, OklahomaView mapDirections
Oklahoma DEQ publishes the water-quality measurements for Mountain Lake. Here is what has been measured.
- Limited data
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Answers come straight from the public measurements and survey records on this page.
Mountain Lake in Noble County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 3.4 ft visibility.
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Mountain Lake is a lake in Noble County, Oklahoma.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2018-08-14. 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 Mountain 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 Mountain Lake
These are the measurements Oklahoma DEQ publishes for Mountain Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 3.4 ft. TSI 60.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.4 ft | Measured, not scored |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 60 | Eutrophic |
High nutrients, frequent algae, reduced clarity
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Nearby Lakes in Noble County
Frequently asked questions about Mountain Lake
Where is Mountain Lake?
- Mountain Lake is a lake in Noble County, Oklahoma. Its water-quality measurements are published by Oklahoma DEQ and shown on this page as reported.
What is the water quality of Mountain Lake?
- Mountain Lake in Noble County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 3.4 ft visibility.
Is Mountain Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
2 measurements from 1 monitoring station, 2018. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- OWRB Lakes Monitoring
OKWRB-LAKES_WQX2 samples · 2018
Analytical methods
- OWRB Lakes Field Data Collection
Monitoring station identifiers (1)
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.