Lake Fifteen
Lake Fifteen in Clay County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 145 acres.
- Area
- 145 acres
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Why Lake Fifteen 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 Lake Fifteen, 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 MPCA and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake Fifteen is a 145-acre lake in Clay County, Minnesota.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Lake Fifteen 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 Lake Fifteen
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 Lake Fifteen
Compare lakeside cabins, hotels, and vacation rentals near Lake Fifteen in Clay County, Minnesota — 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 Lake Fifteen
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 145 acres |
No bathymetric survey has been published for Lake Fifteen, so its depth is not documented here.
Recreation & Access
- Lake FifteenPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Fifteen
Nearby Lakes in Clay County
Frequently asked questions about Lake Fifteen
Where is Lake Fifteen?
- Lake Fifteen is a lake in Clay County, Minnesota. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Lake Fifteen?
- Lake Fifteen in Clay County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 145 acres.
Is Lake Fifteen safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Fifteen is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Lake Fifteen?
- Lake Fifteen has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake Fifteen.
Explore Lake Fifteen across LakeQuality
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Where this data comes from
Measurements for Lake Fifteen come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Lake details from Minnesota DNR LakeFinder
Named boat-access points from the USGS National Boat Ramps inventory