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LakeQuality

Overcup Lake

Conway County, ArkansasView mapDirections

Arkansas DEQ publishes the water-quality measurements for Overcup Lake. Here is what has been measured.

Phosphorus
55 µg/L
Typical for Arkansas
Measured by Arkansas DEQ
Chlorophyll-a
56.4 µg/L
More algae than most
Measured by Arkansas DEQ
Max depth
~39 ft est.
GLOBathy model
Type
Hypereutrophic
Trophic class
Trend
Improving
4 years of samples
  • Hypereutrophic
  • 39 ft max depth
  • Limited data

Overcup Lake in Conway County, Arkansas has water-quality measurements published by Arkansas DEQ, shown here as reported. Phosphorus: 55 µg/L. Chlorophyll-a (algae): 56.4 µg/L.

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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. 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. Methodology: how these readings are compared.

What Overcup Lake is good for

From access and monitoring records, not editorial picks.

  • Boat launch1 documented ramp

Swimming conditions

Readings only

Limited 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 Overcup 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.

Get alerts for Overcup Lake →

Water quality measurements for Overcup Lake

These are the measurements Arkansas DEQ publishes for Overcup 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. Phosphorus 55 µg/L. Chlorophyll-a 56.4 µg/L. TSI 66.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)No reading

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus55µg/LPoor
GoodFairPoor
Chlorophyll-a (algae)56.4µg/LPoor
GoodFairPoor
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.66Hypereutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Very high nutrients, dense algae, poor clarity

Ask about Overcup Lake

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

~39 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

Watershed (drainage) area

18 sq mi

HydroLAKES / HydroSHEDS

Surface area

541 acres

HydroLAKES / HydroSHEDS

Shoreline

5.1 mi

HydroLAKES / HydroSHEDS

Elevation

292 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

1
Boat Landings
  • Lakeview LandingSemi-private

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Stays via Stay22

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 readings cover nutrients and algae, not lodging. Cabins and rentals around Overcup Lake are listed below.

Top-rated places to stay near Overcup Lake

Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a trip? Cabins and lodging at Overcup Lake → · more Arkansas lake trips

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Fishing Overcup Lake

Based on 4 years of monitoring (2019–2022).

  • Phosphorus

    Improving

    -5 µg/L/yr4 years

  • Chlorophyll-a

    Improving

    -10.43 µg/L/yr4 years

See year-by-year chart →

Nearby Lakes in Conway County

Frequently asked questions about Overcup Lake

Where is Overcup Lake?

Overcup Lake is a lake in Conway County, Arkansas. Its water-quality measurements are published by Arkansas DEQ and shown on this page as reported.

What is the water quality of Overcup Lake?

Overcup Lake in Conway County, Arkansas has water-quality measurements published by Arkansas DEQ, shown here as reported. Phosphorus: 55 µg/L. Chlorophyll-a (algae): 56.4 µg/L.

Measurements on this page ↑

Is Overcup Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Swimming on this page ↑

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.

Access on this page ↑

Can I fish at Overcup Lake?

Overcup Lake 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.

Access on this page ↑

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 QualityARDEQH2O_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)

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