Cimarron County, Oklahoma · Water Quality Report Card
Lake Etling
Lake Etling in Cimarron County, Oklahoma is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.2 ft visibility.
- Clarity
- 1.2 ft
- Mean depth
- ~14 ft est.
- Type
- Hypereutrophic
- Trend
- ↑ Improving
Lake Etling is a highly nutrient-loaded hypereutrophic lake in Cimarron County, Oklahoma with an estimated average depth of about 14 feet. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2018-08-20. Grade methodology: LakeGrade methodology.
Watch Lake Etling water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not rated for swimming — there is not enough monitoring data to judge this lake
Water Quality Grade: Not rated
Very murky, less than 1.2 ft of visibility. Trophic State Index: 75.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.2 ft | |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 75 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Lake Details
| Characteristic | Value |
|---|---|
| Average Depth | ~14 ft est. |
Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Oklahoma has not published bathymetry for Lake Etling.
Where to stay near Lake Etling
Compare lakeside cabins, hotels, and vacation rentals near Lake Etling in Cimarron County, Oklahoma — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Lake Etling
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Lake Etling?
Get lake water-quality report cards plus the best cabin & lodging deals near Lake Etling — straight to your inbox. No spam, unsubscribe anytime.
Planning a whole trip? See where to stay at Oklahoma’s top lakes →
Fishing Lake Etling
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +35.7 m/yr | 2 |
Location
Nearby Lakes in Cimarron County
Explore Lake Etling across LakeGrade
Species activity outlook by water temperature and season
Where to stay at Oklahoma's top lakes, each with its grade
Very high nutrients, dense algae, poor clarity
Oklahoma's cleanest and most-polluted lakes, ranked
More Oklahoma Lake Rankings
Other Lakes in Oklahoma
Hypereutrophic Lakes in Oklahoma
More records, surveys & data sources
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Where this data comes from
8 measurements from 3 monitoring stations, 2017–2018. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- OWRB Lakes Monitoring
OKWRB-LAKES_WQX8 samples · 2017–2018
Analytical methods
- OWRB Lakes Field Data Collection
Monitoring station identifiers (3)
Grade thresholds come from the U.S. EPA National Lakes Assessment 2022 Technical Support Document (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated.
Data Sources
Water quality data from the EPA Water Quality Portal
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2018-08-20
Monitoring stations: 3