Lake Etling
Cimarron County, Oklahoma159 acresView mapDirections
Oklahoma DEQ publishes the water-quality measurements for Lake Etling. Here is what has been measured.
- Limited data
Ask about Lake Etling
Answers come straight from the public measurements and survey records on this page.
Lake Etling in Cimarron County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 1.2 ft visibility. Surface area: 159 acres.
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Lake Etling is a 159-acre lake in Cimarron County, Oklahoma. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2018-08-20. 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 Lake Etling 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 Lake Etling
These are the measurements Oklahoma DEQ publishes for Lake Etling, 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 1.2 ft of visibility. TSI 75.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.2 ft | Measured, not scored |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 75 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 159 acres |
No bathymetric survey has been published for Lake Etling, so its depth is not documented here.
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 |
Reservoir Info (USACE NID)
Lake Etling is a man-made reservoir impounded by the Etling Lake (completed 1958), built primarily for recreation on the South Carrizo Creek; earth-type dam, 59 ft tall and 725 ft long.
- Surface area
- 159 ac
- Normal storage
- 1,717 ac-ft
- Max storage
- 6,491 ac-ft
- Drainage area
- 44.69 sq mi
- Hazard class
- Low
- Owner
- DEPT OF WILDLIFE
Source: USACE National Inventory of Dams, NID ID OK00551 · Operator website
Nearby Lakes in Cimarron County
Frequently asked questions about Lake Etling
Where is Lake Etling?
- Lake Etling is a lake in Cimarron County, Oklahoma. Its water-quality measurements are published by Oklahoma DEQ and shown on this page as reported.
What is the water quality of Lake Etling?
- Lake Etling in Cimarron County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 1.2 ft visibility. Surface area: 159 acres.
Is Lake Etling safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Lake Etling across LakeQuality
More lakes in Oklahoma
Other Lakes in Oklahoma
Hypereutrophic Lakes in Oklahoma
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)
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.