Lake Jack Nolan
Sebastian County, Arkansas207 acresView mapDirections
Nutrients and algae run well above the regional average.
↓ down from D at the last regrade
- Hypereutrophic
- #1 of 1 in the county
- 33 ft max depth
- Limited data
Lake Jack Nolan in Sebastian County, Arkansas has a water quality grade of F (Algae-prone). Phosphorus: 35 µg/L. Chlorophyll-a (algae): 31.8 µg/L. Surface area: 207 acres.
- Max depth
- ~33 ft est.
- Area
- 207 acres
- Type
- Hypereutrophic
- Phosphorus
- 35 µg/L
- Chlorophyll-a
- 31.8 µg/L
- Trend
- ↑ Improving
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Stays near Lake Jack Nolan
Compare lakeside cabins, hotels, and vacation rentals near Lake Jack Nolan in Sebastian 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 grade measures nutrients and algae, not lodging — cabins and rentals around Lake Jack Nolan are listed below.
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Watch Lake Jack Nolan’s letter
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Lake Jack Nolan is a 207-acre highly nutrient-loaded hypereutrophic lake in Sebastian County, Arkansas with an estimated average depth of about 33 feet. Water quality is graded F based on 3 sampling years through 2023. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, ADEQ, last sampled 2023-02-21. Grade methodology: LakeQuality methodology.
Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The F is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: F (Algae-prone)
No clarity data. Phosphorus 35 µg/L. Chlorophyll-a 31.8 µg/L. TSI 60. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 35 µg/L | Poor |
| Chlorophyll-a (Algae) | 31.8 µg/L | Poor |
| Trophic State Index (TSI) | 60 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~33 ft est. |
| Average Depth | ~11 ft est. |
| Surface Area | 207 acres |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Arkansas has not published bathymetry for Lake Jack Nolan.
Lake Size & Watershed
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.
Fishing Lake Jack Nolan
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Phosphorus | ↑ Improving | -5 µg/L/yr | 3 |
| Chlorophyll-a | ↑ Improving | -14.8 µg/L/yr | 3 |
Reservoir Info (USACE NID)
Lake Jack Nolan is a man-made reservoir impounded by the Jack Nolen Lake Dam (completed 1991), built primarily for fish and wildlife pond on the Hog Creek Trib Vasche Creek; earth-type dam, 34 ft tall and 2,350 ft long.
- Surface area
- 207 ac
- Normal storage
- 2,400 ac-ft
- Max storage
- 4,600 ac-ft
- Drainage area
- 4 sq mi
- Hazard class
- Significant
- Owner
- Arkansas Game and Fish Commission
Source: USACE National Inventory of Dams, NID ID AR01500 · Operator website · Matched by proximity (0.47 km)
County Ranking
Ranked #1 of 1 lakes in Sebastian County
Nearby Lakes With Higher Grades
Lake Jack Nolan holds Grade F. One nearby lake has a higher nutrient-and-algae grade — useful for a swim day, not a reason to skip lodging here.
Nearby Lakes in Sebastian County
Frequently asked questions about Lake Jack Nolan
Where is Lake Jack Nolan?
- Lake Jack Nolan is a lake in Sebastian County, Arkansas. LakeQuality grades it F for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Jack Nolan?
- Lake Jack Nolan in Sebastian County, Arkansas has a water quality grade of F (Algae-prone). Phosphorus: 35 µg/L. Chlorophyll-a (algae): 31.8 µg/L. Surface area: 207 acres.
Is Lake Jack Nolan safe to swim in?
- The F is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
How deep is Lake Jack Nolan?
- No published bathymetric survey covers Lake Jack Nolan, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 33 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 207 acres.
Explore Lake Jack Nolan across LakeQuality
Species activity outlook by water temperature and season
Where to stay at Arkansas's top lakes, each with its grade
Very high nutrients, dense algae, poor clarity
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Where this data comes from
38 measurements from 1 monitoring station, 2020–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Arkansas Department of Environmental Quality
ARDEQH2O_WQX38 samples · 2020–2023
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)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)