Welker Lake
Welker Lake in Hanson County, South Dakota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 58 acres.
- Area
- 58 acres
Next lake in Hanson County
Swipe left or right on this bar to open the next or previous lake.
Why Welker Lake 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 Welker Lake, 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 SD DANR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Welker Lake is a 58-acre lake in Hanson County, South Dakota.
Source: EPA Water Quality Portal sampling records, SD DANR, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Welker Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Welker Lake
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 Welker Lake
Compare lakeside cabins, hotels, and vacation rentals near Welker Lake in Hanson County, South 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 Welker Lake
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 58 acres |
No bathymetric survey has been published for Welker Lake, so its depth is not documented here.
Fishing Welker Lake
Nearby Lakes in Hanson County
Frequently asked questions about Welker Lake
Where is Welker Lake?
- Welker Lake is a lake in Hanson County, South Dakota. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Welker Lake?
- Welker Lake in Hanson County, South Dakota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 58 acres.
Is Welker Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Welker Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Welker Lake across LakeQuality
More South Dakota Lake Rankings
Other Lakes in South Dakota
Where this data comes from
Measurements for Welker Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.