Lake Wallace
Chicot County, ArkansasView mapDirections
Arkansas DEQ publishes the water-quality measurements for Lake Wallace. Here is what has been measured.
- Hypereutrophic
- Public access
- Limited data
Lake Wallace in Chicot County, Arkansas has water-quality measurements published by Arkansas DEQ, shown here as reported. Phosphorus: 150 µg/L. Chlorophyll-a (algae): 72.5 µg/L.
Lake Wallace is a highly nutrient-loaded hypereutrophic lake in Chicot County, Arkansas. Phosphorus level is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 3 other monitored lakes in Chicot County, Lake Wallace ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, ADEQ, last sampled 2025-11-17. Methodology: how these readings are compared.
What Lake Wallace is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
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 Lake Wallace 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 Lake Wallace
These are the measurements Arkansas DEQ publishes for Lake Wallace, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 150 µg/L. Chlorophyll-a 72.5 µg/L. TSI 75.
| 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 | 150µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | 72.5µg/L | Poor GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 75 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Lake Wallace
Answers come straight from the public measurements and survey records on this page.
Recreation & Access
- Lake WallacePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Lake Wallace
Compare lakeside cabins, hotels, and vacation rentals near Lake Wallace in Chicot 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Lake Wallace are listed below.
Top-rated places to stay near Lake Wallace
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
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Follow Lake Wallace’s readings
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Fishing Lake Wallace
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.
Phosphorus
Worsening+20 µg/L/yr2 years
Chlorophyll-a
Improving-15.65 µg/L/yr3 years
Reservoir Info (USACE NID)
Lake Wallace is a man-made reservoir impounded by the Lake Wallace Dam (completed 1960), built primarily for recreation on the Ni Bayou-Tr; buttress-type dam, 11 ft tall and 125 ft long.
- Normal storage
- 790 ac-ft
- Max storage
- 1,235 ac-ft
- Hazard class
- Low
- Owner
- Arkansas Game and Fish Commission
Source: USACE National Inventory of Dams, NID ID AR00798 · Operator website
Nearby Lakes in Chicot County
Frequently asked questions about Lake Wallace
Where is Lake Wallace?
- Lake Wallace is a lake in Chicot County, Arkansas. Its water-quality measurements are published by Arkansas DEQ and shown on this page as reported.
What is the water quality of Lake Wallace?
- Lake Wallace in Chicot County, Arkansas has water-quality measurements published by Arkansas DEQ, shown here as reported. Phosphorus: 150 µg/L. Chlorophyll-a (algae): 72.5 µg/L.
Is Lake Wallace safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Lake Wallace?
- Lake Wallace has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake Wallace. Public access is listed as yes.
Can I fish at Lake Wallace?
- Lake Wallace has 1 documented boat landing 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 Lake Wallace across LakeQuality
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Hypereutrophic Lakes in Arkansas
Where this data comes from
33 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_WQX33 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
Named boat-access points from the USGS National Boat Ramps inventory