Reliance Lake
Reliance Lake in Lyman County, South Dakota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 42 acres.
- Area
- 42 acres
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Why Reliance 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 Reliance 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.
Reliance Lake is a 42-acre lake in Lyman County, South Dakota.
Source: EPA Water Quality Portal sampling records, SD DANR, last sampled recent years. Grade methodology: LakeQuality methodology.
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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 Reliance 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 Reliance Lake
Compare lakeside cabins, hotels, and vacation rentals near Reliance Lake in Lyman 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 Reliance Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 42 acres |
No bathymetric survey has been published for Reliance Lake, so its depth is not documented here.
Fishing Reliance Lake
Nearby Lakes in Lyman County
Frequently asked questions about Reliance Lake
Where is Reliance Lake?
- Reliance Lake is a lake in Lyman 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 Reliance Lake?
- Reliance Lake in Lyman County, South Dakota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 42 acres.
Is Reliance Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Reliance Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
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Where this data comes from
Measurements for Reliance Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.