Lower White Oak Lake
Ouachita County, Arkansas1,000 acresView mapDirections
Arkansas DEQ publishes the water-quality measurements for Lower White Oak Lake. Here is what has been measured.
- Eutrophic
- 37 ft max depth
- Public access
- Limited data
Lower White Oak Lake in Ouachita County, Arkansas has water-quality measurements published by Arkansas DEQ, shown here as reported. Chlorophyll-a (algae): 25.9 µg/L. Surface area: 1000 acres.
Lower White Oak Lake is a 1,000-acre productive, nutrient-rich eutrophic lake in Ouachita County, Arkansas with an estimated average depth of about 37 feet. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 2 public boat landings. Compared to the 2 other monitored lakes in Ouachita County, Lower White Oak Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, ADEQ, last sampled 2025-10-28. Methodology: how these readings are compared.
Lower White Oak Lake covers about 1,000 acres in Ouachita County. It has 2 public boat landings, so a lakefront rental is not the only way to get a boat on the water. For a place on the water, look through cabin and lake-house rentals near Lower White Oak Lake on Vrbo. For a hotel or motel room, Booking.com and Expedia both search around the lake.
What Lower White Oak Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch2 documented ramps
- Big water1,000 acres
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lower White Oak Lake is safe to swim in today is a call for the Arkansas Division of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lower White Oak Lake
These are the measurements Arkansas DEQ publishes for Lower White Oak Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Chlorophyll-a 25.9 µg/L. TSI 63.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading 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) | 25.9µg/L | Fair GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 63 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Lower White Oak Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~37 ft est.
Surface area
1,000 acres
Public access
Yes
Listed by Arkansas DEQ
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Arkansas has not published bathymetry for Lower White Oak Lake.
Lake Size & Watershed
Watershed (drainage) area
44 sq mi
HydroLAKES / HydroSHEDS
Shoreline
12 mi
HydroLAKES / HydroSHEDS
Elevation
217 ft
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.
Recreation & Access
- White Oak Lake Dam SitePublic
- White Oak Lake State Park MarinaPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Lower White Oak Lake
Compare lakeside cabins, hotels, and vacation rentals near Lower White Oak Lake in Ouachita County, Arkansas — 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 Lower White Oak Lake
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Fishing Lower White Oak Lake
Water quality readings over time
3 seasons of samples on record (2023–2025). Calling a direction takes at least 4 years of the same measurement.
Chlorophyll-a
Improving-8.55 µg/L/yr3 years
Reservoir Info (USACE NID)
Lower White Oak Lake is a man-made reservoir impounded by the Lower White Oak Dam (completed 1959), built primarily for recreation on the White Oak Creek; earth-type dam, 30 ft tall and 2,837 ft long.
- Surface area
- 1,000 ac
- Normal storage
- 13,160 ac-ft
- Max storage
- 24,675 ac-ft
- Drainage area
- 27.2 sq mi
- Hazard class
- High
- Owner
- Arkansas Game and Fish Commission
Source: USACE National Inventory of Dams, NID ID AR00633 · Operator website
Nearby Lakes in Ouachita County
Frequently asked questions about Lower White Oak Lake
Where is Lower White Oak Lake?
- Lower White Oak Lake is a lake in Ouachita County, Arkansas. Its water-quality measurements are published by Arkansas DEQ and shown on this page as reported.
What is the water quality of Lower White Oak Lake?
- Lower White Oak Lake in Ouachita County, Arkansas has water-quality measurements published by Arkansas DEQ, shown here as reported. Chlorophyll-a (algae): 25.9 µg/L. Surface area: 1000 acres.
Is Lower White Oak Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Lower White Oak Lake?
- No published bathymetric survey covers Lower White Oak Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 37 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 1000 acres.
Are there boat ramps on Lower White Oak Lake?
- Lower White Oak Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include White Oak Lake Dam Site, White Oak Lake State Park Marina. Public access is listed as yes.
Can I fish at Lower White Oak Lake?
- Lower White Oak Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Arkansas's fish and wildlife agency, so check its current regulations before you go.
Explore Lower White Oak Lake across LakeQuality
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Where this data comes from
31 measurements from 1 monitoring station, 2023–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Arkansas Department of Environmental Quality
ARDEQH2O_WQX31 samples · 2023–2025
Analytical methods
- 4500 P J ~ Persulfate Method for Simultaneous Determination of Total Nitrogen and Total Phosphorus
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
- Turbidity by Nephelometry
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.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory