Lake Sequoyah
Washington County, Arkansas490 acresView mapDirections
Arkansas DEQ publishes the water-quality measurements for Lake Sequoyah. Here is what has been measured.
- Limited data
Lake Sequoyah in Washington County, Arkansas has water-quality measurements published by Arkansas DEQ, shown here as reported. Water clarity: 2.5 ft visibility. Surface area: 490 acres.
Lake Sequoyah is a 490-acre lake in Washington County, Arkansas. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, ADEQ, last sampled 2024-07-04. 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 Sequoyah 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 Sequoyah
These are the measurements Arkansas DEQ publishes for Lake Sequoyah, 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 2.5 ft of visibility. TSI 64.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 2.5ft | 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. | 64 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Lake Sequoyah
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
490 acres
No bathymetric survey has been published for Lake Sequoyah, so its depth is not documented here.
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Stays near Lake Sequoyah
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Fishing Lake Sequoyah
Water Quality Trend: Worsening
Based on 5 years of monitoring (2017–2024).
Water clarity
Worsening4 years
Phosphorus
Worsening+5 µg/L/yr3 years
Chlorophyll-a
Worsening+4.7 µg/L/yr3 years
Reservoir Info (USACE NID)
Lake Sequoyah is a man-made reservoir impounded by the Lake Sequoyah (completed 1960), built primarily for recreation on the White River; rockfill-type dam, 25 ft tall and 1,160 ft long.
- Surface area
- 490 ac
- Normal storage
- 3,200 ac-ft
- Max storage
- 6,000 ac-ft
- Drainage area
- 180 sq mi
- Hazard class
- Low
- Owner
- City of Fayetteville
All listed purposes: Recreation;Other.
Source: USACE National Inventory of Dams, NID ID AR00288 · Operator website
Nearby Lakes in Washington County
Frequently asked questions about Lake Sequoyah
Where is Lake Sequoyah?
- Lake Sequoyah is a lake in Washington 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 Sequoyah?
- Lake Sequoyah in Washington County, Arkansas has water-quality measurements published by Arkansas DEQ, shown here as reported. Water clarity: 2.5 ft visibility. Surface area: 490 acres.
Is Lake Sequoyah safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Lake Sequoyah across LakeQuality
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Where this data comes from
5 measurements from 1 monitoring station, 2017–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North American Lake Management Society
NALMS5 samples · 2017–2024
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.