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LakeQuality

West Stump Lake

Nelson County, North DakotaView mapDirections

ND DEQ publishes the water-quality measurements for West Stump Lake. Here is what has been measured.

Clarity
9.8 ft
Clearer than most
Secchi · sampled 2025
Chlorophyll-a
20.1 µg/L
More algae than most
Measured by ND DEQ
Water temp
~50°F
Typical for Oct · EPA WQP
  • Public access
  • Limited data

West Stump Lake in Nelson County, North Dakota has water-quality measurements published by ND DEQ, shown here as reported. Water clarity: 9.8 ft visibility. Chlorophyll-a (algae): 20.1 µg/L.

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West Stump Lake is a lake in Nelson County, North Dakota. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available.

Source: EPA Water Quality Portal sampling records, NDDEQ, last sampled 2025-10-14. Methodology: how these readings are compared.

What West Stump Lake is good for

From access and monitoring records, not editorial picks.

  • Clear water9.8 ft of visibility

Swimming conditions

No reading

Limited data

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

Whether West Stump Lake is safe to swim in today is a call for the North Dakota Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for West Stump Lake

These are the measurements ND DEQ publishes for West Stump Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

Moderate clarity, visible to about 9.8 ft. Chlorophyll-a 20.1 µg/L. TSI 52.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)9.8ftMeasured, not scored

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

Total phosphorusNo reading

The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.

Chlorophyll-a (algae)20.1µg/LMeasured, not scored

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.52Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about West Stump Lake

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

Water Temperature

West Stump Lake typically sits around 50°F at the surface in October. Summer average is about 62°F. Usually warmest in Jul (about 69°F) and coldest in May (about 44°F). These are typical values by month — not a live reading.

Jan
Feb
Mar
Apr
44°
May
57°
Jun
69°
Jul
61°
Aug
Sep
50°
Oct
Nov
Dec

Column height runs from this lake’s coldest month (44°F) to its warmest (69°F).

Typical surface water temperature by month, from 18 field readings (2020–2025) via the EPA Water Quality Portal. See the full West Stump Lake water temperature breakdown →

Stays via Stay22

Stays near West Stump Lake

Compare lakeside cabins, hotels, and vacation rentals near West Stump Lake in Nelson County, North Dakota — 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.

Top-rated places to stay near West Stump Lake

Prices for Oct 23–25, 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.

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Fishing West Stump Lake

2 seasons of samples on record (2020–2025). Calling a direction takes at least 4 years of the same measurement.

  • Water clarity

    Worsening

    2 years

Nearby Lakes in Nelson County

Frequently asked questions about West Stump Lake

Where is West Stump Lake?

West Stump Lake is a lake in Nelson County, North Dakota. Its water-quality measurements are published by ND DEQ and shown on this page as reported.

What is the water quality of West Stump Lake?

West Stump Lake in Nelson County, North Dakota has water-quality measurements published by ND DEQ, shown here as reported. Water clarity: 9.8 ft visibility. Chlorophyll-a (algae): 20.1 µg/L.

Measurements on this page ↑

Is West Stump Lake safe to swim in?

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

Swimming on this page ↑

What is the water temperature of West Stump Lake?

West Stump Lake typically sits around 50°F at the surface in October, from 18 EPA Water Quality Portal field readings (2020–2025). That is a typical value for the month, not a live reading.

Temp on this page ↑

Can I fish at West Stump Lake?

Public access to West Stump Lake is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by North Dakota's fish and wildlife agency, so check its current regulations before you go.

Where this data comes from

17 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • North Dakota Department Of Environmental Quality21NDHDWQ_WQX17 samples · 2020–2025

Analytical methods

  • Phosphorus by Colorimetry
  • 10200 H ~ Chlorophyll a-b-c Determination
  • 447.0 ~ EPA; Chlorophyll a and b in phytoplankton by HPLC/UV
  • 4500 NO3 E ~ Nitrate in Water- Cadmium Reduction
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.