Weller Slough
Weller Slough in McLean County, North Dakota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 574 acres.
- Area
- 574 acres
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Why Weller Slough has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Weller Slough, no water-quality sampling on record for this lake.
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by NDDEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Weller Slough is a 574-acre lake in McLean County, North Dakota.
Source: EPA Water Quality Portal sampling records, NDDEQ, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Weller Slough water quality
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Weller Slough
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Weller Slough
Compare lakeside cabins, hotels, and vacation rentals near Weller Slough in McLean 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 Weller Slough
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 574 acres |
No bathymetric survey has been published for Weller Slough, so its depth is not documented here.
Fishing Weller Slough
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Frequently asked questions about Weller Slough
Where is Weller Slough?
- Weller Slough is a lake in McLean County, North Dakota. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Weller Slough?
- Weller Slough in McLean County, North Dakota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 574 acres.
Is Weller Slough safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Weller Slough is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Weller Slough across LakeQuality
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Where this data comes from
Measurements for Weller Slough come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Depth, fish, and access data from North Dakota Game & Fish