Bennett Lake
Ramsey County, Minnesota29 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Bennett Lake. Here is what has been measured.
- Eutrophic
- Impaired · Mercury
- 9 ft max depth
Bennett Lake in Ramsey County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 4.9 ft visibility. Phosphorus: 106 µg/L. Chlorophyll-a (algae): 20 µg/L. Maximum depth: 9 ft. Surface area: 29.04 acres.
Minnesota DNR's Targeted Survey on June 6, 2016 caught 9.50 northern pike per gill net at Bennett Lake. Length samples in the latest survey that recorded them ran 13–27 inches. DNR survey details →
Bennett Lake is a 29-acre productive, nutrient-rich eutrophic lake in Ramsey County, Minnesota with a maximum depth of 9 feet. Overall water quality is declining over recent sampling years. The lake supports 8 documented fish species including black bullhead, black crappie, and bluegill. No public access — the lake is private or restricted. Compared to the 43 other monitored lakes in Ramsey County, Bennett Lake ranks #20 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-16. Methodology: how these readings are compared.
What Bennett Lake is good for
From access and monitoring records, not editorial picks.
- Fishing8 species recorded
Swimming conditions
Readings onlyRecreation use not supported
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Bennett Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Bennett Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Bennett Lake
These are the measurements Minnesota PCA publishes for Bennett Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 4.9 ft. Phosphorus 106 µg/L. Chlorophyll-a 20 µg/L. TSI 62.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 4.9ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 106µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | 20µg/L | Poor GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 62 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Bennett Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Bennett Lake typically sits around 69°F at the surface in September. Summer average is about 73°F. Usually warmest in Jul (about 74°F) and coldest in Jan (about 38°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (38°F) to its warmest (74°F).
Typical surface water temperature by month, from 256 field readings (2010–2025) via the EPA Water Quality Portal. See the full Bennett Lake water temperature breakdown →
Minnesota DNR's Targeted Survey on June 6, 2016 caught 9.50 northern pike per gill net at Bennett Lake. Length samples in the latest survey that recorded them ran 13–27 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Bennett Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
8 surveys on file from MN DNR Fisheries. Most recent: 2016-06-06 (Targeted Survey).
8 surveys on file · most recent 2016-06-06 (Targeted Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Bluegill | 103.39 | 2–6 in 2016-06-06 | 0.1 lb |
| Black Bullhead | 53.21 | 6–11 in 2016-06-06 | 0.39 lb |
| Yellow Perch | 20.00 | 5 in 2011-06-06 | 0.08 lb |
| Black Crappie | 15.83 | 4–6 in 2016-06-06 | 0.13 lb |
| Northern Pike | 5.67 | 13–27 in 2016-06-06 | 3.14 lb |
| Golden Shiner | 5.16 | 6–7 in 2011-06-06 | 0.11 lb |
CPUE = catch per unit effort, fish caught per net per set in a standardised survey. It measures abundance, not size, and is not a weekly bite report.
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.
Bluegill
Black Bullhead
Yellow Perch
Black Crappie
From the 2016-06-06 survey
Bennett Lake is a popular local fishing resource in Central Park, City of Roseville. The lake is 23 acres in size and has a maximum depth of nine feet. An aeration system located on the east shore prevents winterkill and a fishing pier is located on the west shore. Additionally, there are many points around the lake…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Bennett Lake. 2 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — BennettFisheries Lake Survey · MN DNR LakeFinder
- —Fish Stocking History — BennettFish Stocking History · MN DNR LakeFinder
Lake Details
Max depth
9 ft
Surface area
29 acres
Shoreline
1 mi
Littoral zone
98%
Share shallower than 15 ft
Public access
No
Listed by Minnesota PCA
Stays via Stay22
Stays near Bennett Lake
Compare lakeside cabins, hotels, and vacation rentals near Bennett Lake in Ramsey 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Bennett Lake are listed below.
Top-rated places to stay near Bennett Lake
Prices for Oct 9–11, 4 adults. Change dates on the map below.
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 →
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Fish Species
Click a species to see every lake where it is documented.
Fishing Bennett Lake
Water Quality Trend: Worsening
Based on 6 years of monitoring (2020–2025).
Water clarity
Stable6 years
Phosphorus
Worsening+6.17 µg/L/yr6 years
Chlorophyll-a
Worsening+2.81 µg/L/yr6 years
EPA Impairment Status
Bennett Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Fish consumption, Recreation.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN62-0048-00 · Official waterbody report
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Bennett Lake under Clean Water Act (NPDES) discharge permits.
- Kplop Roseville TerminalRoseville · 0.5 mi away · NPDES MN0050318
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Nearby Lakes in Ramsey County
Frequently asked questions about Bennett Lake
Where is Bennett Lake?
- Bennett Lake is a lake in Ramsey County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Bennett Lake?
- Bennett Lake in Ramsey County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 4.9 ft visibility. Phosphorus: 106 µg/L. Chlorophyll-a (algae): 20 µg/L. Maximum depth: 9 ft. Surface area: 29.04 acres.
Is Bennett Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Bennett Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
What is the water temperature of Bennett Lake?
- Bennett Lake typically sits around 69°F at the surface in September, from 256 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.
How deep is Bennett Lake?
- Bennett Lake has a maximum depth of 9 feet. The lake covers 29.04 acres.
What fish are in Bennett Lake?
- Fish species found in Bennett Lake include black bullhead, black crappie, bluegill, green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed. Bennett Lake is located in Ramsey County, Minnesota.
What did the DNR fisheries survey find at Bennett Lake?
- Minnesota DNR's Targeted Survey on June 6, 2016 caught 9.50 northern pike per gill net at Bennett Lake. Length samples in the latest survey that recorded them ran 13–27 inches. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Bennett Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
Can I fish at Bennett Lake?
- Public access to Bennett Lake is listed as no on the lake record, so confirm before you make the trip. Seasons, size and bag limits, and whether you need a license are set by Minnesota's fish and wildlife agency, so check its current regulations before you go.
Explore Bennett Lake across LakeQuality
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Where this data comes from
371 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA371 samples · 2020–2025
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Two Reagent Colorimetry
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
- Turbidity, Nephelometric Method
- 2130 B ~ Nephelometric Method
- Turbidity by Nephelometry
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake details from Minnesota DNR LakeFinder