Center Lakedeep
Center Lakedeep in Cook County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.4 ft visibility. Phosphorus: 53 µg/L. Chlorophyll-a (algae): 52.7 µg/L.
- Clarity
- 1.4 ft
- Typical in August
- 61°F
- Trend
- ↓ Declining
Next lake in Cook County
Why Center Lakedeep has no grade
We grade a lake only when its monitoring record clears the evidence bar: 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 Center Lakedeep, the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).
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.
Center Lakedeep is a lake in Cook County, Minnesota. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2023-10-02. Grade methodology: LakeGrade methodology.
Watch Center Lakedeep water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Center Lakedeep
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Very murky, less than 1.4 ft of visibility. Phosphorus level: 53 µg/L. Chlorophyll-a: 52.7 µg/L. Trophic State Index: 68.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.4 ft | Not graded |
| Phosphorus | 53 µg/L | Not graded |
| Chlorophyll-a (Algae) | 52.7 µg/L | Not graded |
| Trophic State Index (TSI) | 68 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Center Lakedeep
Compare lakeside cabins, hotels, and vacation rentals near Center Lakedeep in Cook 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 Center Lakedeep
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Minnesota’s top lakes →
Water Temperature
Center Lakedeep typically sits around 61°F at the surface in August. Summer average is about 60°F. Usually warmest in Jul (about 61°F) and coldest in May (about 50°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 182 field readings (2011–2023) via the EPA Water Quality Portal. See the full Center Lakedeep water temperature breakdown →
Fishing Center Lakedeep
Water Quality Trend: ↓ Declining
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -14.114 m/yr | 3 |
| Phosphorus | ↑ Improving | -8.73 µg/L/yr | 5 |
| Chlorophyll-a | ↓ Declining | +4.56 µg/L/yr | 4 |
Graded lakes near Center Lakedeep
Center Lakedeep has no grade, but these lakes within a short drive do.
Nearby Lakes in Cook County
Frequently asked questions about Center Lakedeep
What is the water quality grade for Center Lakedeep?
- Center Lakedeep in Cook County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.4 ft visibility. Phosphorus: 53 µg/L. Chlorophyll-a (algae): 52.7 µg/L.
Is Center Lakedeep safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Center Lakedeep is not rated for water quality — its monitoring record does not meet the evidence bar. Algae concentration (chlorophyll-a) is 52.7 µg/L. Always check local health department advisories before swimming.
What is the water temperature of Center Lakedeep?
- Center Lakedeep typically sits around 61°F at the surface in August, from 182 EPA Water Quality Portal field readings (2011–2023). That is a typical value for the month, not a live reading.
Explore Center Lakedeep across LakeGrade
Fish species and top-graded lakes across Minnesota
Fish species and best lakes in Cook County
Species activity outlook by water temperature and season
Where to stay at Minnesota's top lakes, each with its grade
Lakes in the Lake Superior Basin (MN+WI), ranked by water quality
Minnesota's cleanest and most-polluted lakes, ranked
More Minnesota Lake Rankings
State Parks Near Center Lakedeep
Other Lakes in Minnesota
Eutrophic Lakes in Minnesota
Where this data comes from
59 measurements from 1 monitoring station, 2021–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Grand Portage Reservation
GPC5_WQX59 samples · 2021–2023
Analytical methods
- Phosphorus by Two Reagent Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.