Sevier Lake
Sevier Lake in Millard County, Utah is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 122528 acres.
- Area
- 122,528 acres
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Why Sevier 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 Sevier 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 Utah DWQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Sevier Lake is a 122,528-acre lake in Millard County, Utah.
Source: EPA Water Quality Portal sampling records, Utah DWQ, 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 Sevier 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 Sevier Lake
Compare lakeside cabins, hotels, and vacation rentals near Sevier Lake in Millard County, Utah — 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 Sevier Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 122,528 acres |
No bathymetric survey has been published for Sevier Lake, so its depth is not documented here.
Fishing Sevier Lake
Nearby Lakes in Millard County
Frequently asked questions about Sevier Lake
Where is Sevier Lake?
- Sevier Lake is a lake in Millard County, Utah. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Sevier Lake?
- Sevier Lake in Millard County, Utah is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 122528 acres.
Is Sevier Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Sevier 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 Sevier Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.