Overcup Lake
Conway County, ArkansasView mapDirections
Nutrients and algae run well above the regional average.
↓ down from D at the last regrade
- Hypereutrophic
- #2 of 2 in the county
- 39 ft max depth
- Limited data
Overcup Lake in Conway County, Arkansas has a water quality grade of F (Algae-prone). Phosphorus: 55 µg/L. Chlorophyll-a (algae): 56.4 µg/L.
- Max depth
- ~39 ft est.
- Type
- Hypereutrophic
- Phosphorus
- 55 µg/L
- Chlorophyll-a
- 56.4 µg/L
- Trend
- ↑ Improving
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Stays near Overcup Lake
Compare lakeside cabins, hotels, and vacation rentals near Overcup Lake in Conway 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 Overcup Lake are listed below.
Top-rated places to stay near Overcup Lake
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Watch Overcup Lake’s letter
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Overcup Lake is a highly nutrient-loaded hypereutrophic lake in Conway County, Arkansas with an estimated average depth of about 39 feet. Water quality is graded F based on 3 sampling years through 2023. Overall water quality is improving over recent sampling years. Public access is available with 1 public boat landing. Compared to the 1 other monitored lakes in Conway County, Overcup Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, ADEQ, last sampled 2023-02-21. Grade methodology: LakeQuality methodology.
What Overcup Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
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 55 µg/L. Chlorophyll-a 56.4 µg/L. TSI 66. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 55 µg/L | Poor |
| Chlorophyll-a (Algae) | 56.4 µg/L | Poor |
| Trophic State Index (TSI) | 66 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~39 ft est. |
| Average Depth | ~10 ft est. |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Arkansas has not published bathymetry for Overcup Lake.
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.
Recreation & Access
- Lakeview LandingSemi-private
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Overcup Lake
Water Quality Trend: ↑ Improving
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Phosphorus | ↑ Improving | -5 µg/L/yr | 4 |
| Chlorophyll-a | ↑ Improving | -10.43 µg/L/yr | 4 |
County Ranking
Ranked #2 of 2 lakes in Conway County
Nearby Lakes With Higher Grades
Overcup Lake 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 Conway County
Frequently asked questions about Overcup Lake
Where is Overcup Lake?
- Overcup Lake is a lake in Conway County, Arkansas. LakeQuality grades it F for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Overcup Lake?
- Overcup Lake in Conway County, Arkansas has a water quality grade of F (Algae-prone). Phosphorus: 55 µg/L. Chlorophyll-a (algae): 56.4 µg/L.
Is Overcup Lake safe to swim in?
- The F is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
How deep is Overcup Lake?
- No published bathymetric survey covers Overcup Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 39 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Are there boat ramps on Overcup Lake?
- Overcup Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lakeview Landing.
Explore Overcup Lake across LakeQuality
12.6 mi away · 95 ft
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
Arkansas's cleanest and most-polluted lakes, ranked
More Arkansas Lake Rankings
Other Grade F Lakes in Arkansas
Hypereutrophic Lakes in Arkansas
Where this data comes from
60 measurements from 1 monitoring station, 2019–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Arkansas Department of Environmental Quality
ARDEQH2O_WQX60 samples · 2019–2023
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)
Named boat-access points from the USGS National Boat Ramps inventory