Spring Lake
Waukesha County, Wisconsin105 acresView mapDirections
Wisconsin DNR publishes the water-quality measurements for Spring Lake. Here is what has been measured.
- Mesotrophic
- Zebra Mussel
- 22 ft max depth
- Public access
- Limited data
Spring Lake in Waukesha County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Phosphorus: 12.2 µg/L. Maximum depth: 22 ft. Surface area: 105 acres.
Wisconsin DNR lists Panfish as common on Spring Lake. DNR survey details →
Spring Lake is a 105-acre mesotrophic lake in Waukesha County, Wisconsin with a maximum depth of 22 feet. Overall water quality is declining over recent sampling years. The lake supports 4 documented fish species including Panfish, Largemouth Bass, and Smallmouth Bass. Public access is available. Compared to the 34 other monitored lakes in Waukesha County, Spring Lake ranks #23 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2021-09-06. Methodology: how these readings are compared.
What Spring Lake is good for
From access and monitoring records, not editorial picks.
- Fishing4 species recorded
Swimming conditions
Readings onlyLimited data
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. Check local advisories before you swim.
Whether Spring Lake is safe to swim in today is a call for the Wisconsin Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Spring Lake
These are the measurements Wisconsin DNR publishes for Spring Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 12.2 µg/L. TSI 40.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 12.2µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 40 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Spring Lake
Answers come straight from the public measurements and survey records on this page.
Wisconsin DNR lists Panfish as common on Spring Lake.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Spring Lake’s water-quality measurements separately, and the water-quality trend over 2 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2021).
Fish Species (DNR-rated)
Lake Details
Max depth
22 ft
Surface area
105 acres
Public access
Yes
Listed by Wisconsin DNR
Lake Size & Watershed
Watershed (drainage) area
3 sq mi
HydroLAKES / HydroSHEDS
Shoreline
2.4 mi
HydroLAKES / HydroSHEDS
Elevation
915 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
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Stays near Spring Lake
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Follow Spring Lake’s readings
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Fish Species
Click a species to see every lake where it is documented.
Fishing Spring 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.
Water quality readings over time
2 seasons of samples on record (2020–2021). Calling a direction takes at least 4 years of the same measurement.
Phosphorus
Worsening+0.9 µg/L/yr2 years
Reservoir Info (USACE NID)
Spring Lake is a man-made reservoir impounded by the Willow Springs Lake (completed 1966), built primarily for recreation on the SPRING BROOK; gravity-type dam, 20 ft tall and 1,940 ft long.
- Surface area
- 60 ac
- Normal storage
- 220 ac-ft
- Max storage
- 590 ac-ft
- Drainage area
- 3.1 sq mi
- Hazard class
- Low
- Owner
- SPRING BROOK WATERSHED LAKE MANAGEMENT DIST
Source: USACE National Inventory of Dams, NID ID WI00444 · Operator website · Matched by proximity (0.97 km)
Nearby Lakes in Waukesha County
Frequently asked questions about Spring Lake
Where is Spring Lake?
- Spring Lake is a lake in Waukesha County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Spring Lake?
- Spring Lake in Waukesha County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Phosphorus: 12.2 µg/L. Maximum depth: 22 ft. Surface area: 105 acres.
Is Spring Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Spring Lake?
- Spring Lake has a maximum depth of 22 feet. The lake covers 105 acres.
What fish are in Spring Lake?
- Fish species found in Spring Lake include Panfish, Largemouth Bass, Smallmouth Bass, Northern Pike. Spring Lake is located in Waukesha County, Wisconsin.
What did the DNR fisheries survey find at Spring Lake?
- Wisconsin DNR lists Panfish as common on Spring Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Spring Lake’s water-quality measurements separately, and the water-quality trend over 2 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
Can I fish at Spring Lake?
- Public access to Spring Lake is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by Wisconsin's fish and wildlife agency, so check its current regulations before you go.
Explore Spring Lake across LakeQuality
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Where this data comes from
5 measurements from 1 monitoring station, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX5 samples · 2020–2021
Analytical methods
- Phosphorus by Colorimetry
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
Lake size & watershed from HydroLAKES (HydroSHEDS)
Fish and recreation data from Wisconsin DNR Lakes