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LakeQuality

Bois D Arc Lake

Hempstead County, ArkansasView mapDirections

F
Algae-prone

Nutrients and algae run well above the regional average.

Water temp
No reading
No gauge
Clarity
No reading
No sample
Max depth
~21 ft est.
GLOBathy model
Level
No reading
No gauge
Trend
Declining
4 years of samples
  • Hypereutrophic
  • #1 of 1 in the county
  • 21 ft max depth

Bois D Arc Lake in Hempstead County, Arkansas has a water quality grade of F (Algae-prone). Phosphorus: 200 µg/L. Chlorophyll-a (algae): 137 µg/L.

Max depth
~21 ft est.
Type
Hypereutrophic
Phosphorus
200 µg/L
Chlorophyll-a
137 µg/L
Trend
Declining
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Stays near Bois D Arc Lake

Compare lakeside cabins, hotels, and vacation rentals near Bois D Arc Lake in Hempstead 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 Bois D Arc Lake are listed below.

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Bois D Arc Lake is a highly nutrient-loaded hypereutrophic lake in Hempstead County, Arkansas with an estimated average depth of about 21 feet. Water quality is graded F based on 3 sampling years through 2024. Overall water quality is declining over recent sampling years.

Source: EPA Water Quality Portal sampling records, ADEQ, last sampled 2024-07-08. Grade methodology: LakeQuality methodology.

Swimming Safety

Grade only

Algae risk

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.

Get alerts for Bois D Arc Lake

Water Quality Grade: F (Algae-prone)

No clarity data. Phosphorus 200 µg/L. Chlorophyll-a 137 µg/L. TSI 80. The letter is not a swimming clearance.

MetricValueGrade
Water Clarity (Secchi Depth)No recent samples
Phosphorus200 µg/LPoor
Chlorophyll-a (Algae)137 µg/LPoor
Trophic State Index (TSI)80Hypereutrophic

Very high nutrients, dense algae, poor clarity

Lake Details

CharacteristicValue
Maximum Depth~21 ft est.
Average Depth~13 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 Bois D Arc Lake.

Lake Size & Watershed

Watershed (drainage) area
177 sq mi
Surface area
620 acres
Shoreline
4.4 mi
Elevation
256 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.

Fishing Bois D Arc Lake

Based on 4 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Phosphorus Declining+7.14 µg/L/yr4
Chlorophyll-a Stable+1.36 µg/L/yr4
See year-by-year chart →

County Ranking

Ranked #1 of 1 lakes in Hempstead County

Nearby Lakes in Hempstead County

Frequently asked questions about Bois D Arc Lake

Where is Bois D Arc Lake?

Bois D Arc Lake is a lake in Hempstead County, Arkansas. LakeQuality grades it F for nutrients and algae. The letter is not a swimming clearance.

What is the water quality grade for Bois D Arc Lake?

Bois D Arc Lake in Hempstead County, Arkansas has a water quality grade of F (Algae-prone). Phosphorus: 200 µg/L. Chlorophyll-a (algae): 137 µg/L.

Is Bois D Arc Lake safe to swim in?

The F is nutrients and algae, not a swimming clearance. Check local advisories before you swim.

How deep is Bois D Arc Lake?

No published bathymetric survey covers Bois D Arc Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 21 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.

Where this data comes from

92 measurements from 1 monitoring station, 2020–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Arkansas Department of Environmental QualityARDEQH2O_WQX92 samples · 2020–2024

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)