Emily Lake
Ramsey County, MinnesotaLimited DataEutrophic
Emily Lake earns a D — measurements through 2024 show persistent nutrient pressure that limits clarity through the summer.
At a TSI of 58, Emily Lake reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. At 13 acres, Emily Lake sits below the Minnesota median: a small water where shoreline activity has an outsized effect on water quality. Emily Lake sits at rank 33 of 49 in Ramsey County, in the lower half of the local distribution.
Emily Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. The fishery is panfish-dominated — bluegill, crappie, and sunfish among the 3 species documented for the lake. No formal public access is documented at Emily Lake — most use is by shoreline residents and their guests. Ice-out has been recorded 5 times at Emily Lake, with a median around Apr 3. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-10-11. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Murky, only visible to about 3.7 ft. Trophic State Index: 58.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.7 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 58 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 12.99 acres |
| Shoreline Length | 0.9 mi |
| Public Access | No |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Emily Lake (14-day solunar calendar)
→ Is it safe to eat fish from Emily Lake? (mercury & PFAS guide)
→ Emily Lake fishing regulations (limits, seasons, special rules)
Water Quality Trend: ↑ Improving
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.035 m/yr | 5 |
| Phosphorus | ↑ Improving | -0.75 µg/L/yr | 5 |
Ice Season
Historical ice data from Minnesota DNR (11 observations).
Estimated open water season: 236 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2025-03-24 (2025) | 2022-04-14 (2022) |
| Ice-In | 2018-11-13 (2018) | 2017-12-08 (2017) |
Most recent ice-out: 2025-03-24
Location
County Ranking
Ranked #33 of 49 lakes in Ramsey County
Cleaner Lakes Within 30 Miles
Emily Lake holds Grade D. 4 nearby lakes hold higher grades.
Nearby Lakes in Ramsey County
More Minnesota Lake Rankings
State Parks Near Emily Lake
Other Grade D Lakes in Minnesota
Eutrophic Lakes in Minnesota
DNR Fisheries Survey Summary
1 survey on file from MN DNR Fisheries. Most recent: 2006-07-05 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Black Bullhead | 105.90 | 0.08 lb |
| Black Crappie | 20.90 | 0.09 lb |
| Bluegill | 12.60 | 0.07 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.
Length Distributions
Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.
Black Bullhead
Black Crappie
Bluegill
From the 2006-07-05 survey
There is no public access to Lake Emily. This assessment sampled three species (black bullhead, black crappie, and bluegill). Black bullhead and black crappie were abundant. Black bullhead lengths ranged from 4.5 to 11.5 inches, with most fish between 5 and 6 inches. The largest black crappie sampled was 12 inches,…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Emily Lake. 1 report on file.
- —Fisheries Lake Survey — EmilyFisheries Lake Survey · MN DNR LakeFinder
EPA Impairment Status
Emily Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN62-0075-01 · Official waterbody report · Matched by proximity (1.45 km)
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Grading methodology based on Metropolitan Council standards
Lake details from Minnesota DNR LakeFinder
Ice data from Minnesota DNR Climate
Most recent sample: 2024-10-11
Monitoring stations: 1