Lake Henryetta
Okmulgee County, OklahomaView mapDirections
Oklahoma DEQ publishes the water-quality measurements for Lake Henryetta. Here is what has been measured.
- Limited data
Lake Henryetta in Okmulgee County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 0.6 ft visibility.
Lake Henryetta is a lake in Okmulgee County, Oklahoma. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2024-11-06. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lake Henryetta 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 Henryetta
These are the measurements Oklahoma DEQ publishes for Lake Henryetta, 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 0.6 ft of visibility. TSI 85.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 0.6ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 85 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Lake Henryetta
Answers come straight from the public measurements and survey records on this page.
Stays via Stay22
Stays near Lake Henryetta
Compare lakeside cabins, hotels, and vacation rentals near Lake Henryetta in Okmulgee 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 Henryetta
Prices for Nov 6–8, 4 adults. Change dates on the map below.
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 whole trip? See where to stay at Oklahoma’s top lakes →
Follow Lake Henryetta’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Lake Henryetta
Water Quality Trend: Improving
Based on 4 years of monitoring (2012–2024).
Water clarity
Improving4 years
Nearby Lakes in Okmulgee County
Frequently asked questions about Lake Henryetta
Where is Lake Henryetta?
- Lake Henryetta is a lake in Okmulgee 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 Henryetta?
- Lake Henryetta in Okmulgee County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 0.6 ft visibility.
Is Lake Henryetta safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Lake Henryetta across LakeQuality
More lakes in Oklahoma
Other Lakes in Oklahoma
Hypereutrophic Lakes in Oklahoma
Where this data comes from
40 measurements from 3 monitoring stations, 2016–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- OWRB Lakes Monitoring
OKWRB-LAKES_WQX40 samples · 2016–2024
Analytical methods
- OWRB Lakes Field Data Collection
- Phosphorus by Two Reagent Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
- Determination of Turbidity
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.