Fireman'S Lake
Fireman'S Lake in Carver County, Minnesota has a water quality grade of A (Excellent). Water clarity: 10.7 ft visibility. Phosphorus: 23.5 µg/L. Chlorophyll-a (algae): 3.3 µg/L. Maximum depth: 23 ft. Surface area: 9.27 acres.
- Clarity
- 10.7 ft
- Typical in August
- 73°F
- Max depth
- 23 ft
- Area
- 9 acres
- Type
- Mesotrophic
- Trend
- ↓ Declining
- Public access
- Yes
Next lake in Carver County
Fireman'S Lake is a 9-acre mesotrophic lake in Carver County, Minnesota with a maximum depth of 23 feet (7-foot average). Water quality is graded A based on 2 sampling years through 2025. Overall water quality is declining over recent sampling years. The lake supports 8 documented fish species including black crappie, bluegill, and green sunfish. Public access is available with 2 public boat landings. Compared to the 37 other monitored lakes in Carver County, Fireman'S Lake ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-10-06. Grade methodology: LakeGrade methodology.
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Swimming Safety
Grade onlyLow algae
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A (Excellent)
Good clarity, visible to about 10.7 ft. Phosphorus level: 23.5 µg/L. Chlorophyll-a: 3.3 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10.7 ft | Not graded |
| Phosphorus | 23.5 µg/L | Good |
| Chlorophyll-a (Algae) | 3.3 µg/L | Good |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Fireman'S Lake
Compare lakeside cabins, hotels, and vacation rentals near Fireman'S Lake in Carver 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.
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Water Temperature
Fireman'S Lake typically sits around 73°F at the surface in August. Summer average is about 71°F. Usually warmest in Aug (about 73°F) and coldest in Feb (about 39°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 522 field readings (2010–2025) via the EPA Water Quality Portal. See the full Fireman'S Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 23 ft |
| Average Depth | 7 ft |
| Surface Area | 9 acres |
| Shoreline Length | 0.7 mi |
| Littoral Zone | 76% |
| Public Access | Yes |
Recreation & Access
- Winkel ParkPublic
- Carver Riverside ParkPublic
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Fireman'S Lake
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
DNR Fisheries Survey Summary
4 surveys on file from MN DNR Fisheries. Most recent: 2017-07-05 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Bluegill | 49.78 | 0.06 lb |
| Hybrid Sunfish | 5.30 | 0.09 lb |
| Pumpkinseed | 3.38 | 0.05 lb |
| GOS | 2.83 | 0.14 lb |
| Black Crappie | 2.40 | 0.27 lb |
| Largemouth Bass | 1.08 | 0.21 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.
Bluegill
Hybrid Sunfish
Pumpkinseed
GOS
From the 2017-07-05 survey
Firemen's Pond is a 9-acre lake in the middle of downtown Chaska. In 2016 the City of Chaska completed a project that upgraded the surrounding park which has increased access to a large portion of the shoreline for fishing. A portion of the pond is designated for swimming and sits adjacent to a playground and a picnic…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Fireman'S Lake. 2 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — Firemen's ClayholeFisheries Lake Survey · MN DNR LakeFinder
- —Fish Stocking History — Firemen's ClayholeFish Stocking History · MN DNR LakeFinder
Water Quality Trend: ↓ Declining
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.14 m/yr | 6 |
| Phosphorus | ↓ Declining | +1.14 µg/L/yr | 6 |
| Chlorophyll-a | → Stable | +0.01 µg/L/yr | 6 |
County Ranking
Ranked #5 of 38 lakes in Carver County
Nearby Lakes in Carver County
Frequently asked questions about Fireman'S Lake
What is the water quality grade for Fireman'S Lake?
- Fireman'S Lake in Carver County, Minnesota has a water quality grade of A (Excellent). Water clarity: 10.7 ft visibility. Phosphorus: 23.5 µg/L. Chlorophyll-a (algae): 3.3 µg/L. Maximum depth: 23 ft. Surface area: 9.27 acres.
Is Fireman'S Lake safe to swim in?
- Excellent for swimming, crystal clear water with minimal algae. Fireman'S Lake has a water quality grade of A (Excellent). Algae concentration (chlorophyll-a) is 3.3 µg/L. Always check local health department advisories before swimming.
What is the water temperature of Fireman'S Lake?
- Fireman'S Lake typically sits around 73°F at the surface in August, from 522 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.
How deep is Fireman'S Lake?
- Fireman'S Lake has a maximum depth of 23 feet and an average depth of 7 feet. The lake covers 9.27 acres.
What fish are in Fireman'S Lake?
- Fish species found in Fireman'S Lake include black crappie, bluegill, green sunfish, hybrid sunfish, pumpkinseed, shortnose gar, white sucker, yellow bullhead. Fireman'S Lake is located in Carver County, Minnesota.
Are there boat ramps on Fireman'S Lake?
- Fireman'S Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Winkel Park, Carver Riverside Park. Public access is listed as yes.
Explore Fireman'S Lake across LakeGrade
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Where this data comes from
202 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
MNPCA202 samples · 2020–2025
Analytical methods
- Field measurement/observation, generic method
- 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.
Other records on this page
Lake details from Minnesota DNR LakeFinder
Named boat-access points from the USGS National Boat Ramps inventory