Forestville Millpond
Door County, Wisconsin65 acresView mapDirections
Wisconsin DNR publishes the water-quality measurements for Forestville Millpond. Here is what has been measured.
- Eutrophic
- Curly-Leaf Pondweed
- 5 ft max depth
- Public access
- Limited data
Forestville Millpond in Door County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 3 ft visibility. Phosphorus: 94.3 µg/L. Maximum depth: 5 ft. Surface area: 65 acres.
Wisconsin DNR lists Panfish as common on Forestville Millpond. DNR survey details →
Forestville Millpond is a 65-acre productive, nutrient-rich eutrophic lake in Door County, Wisconsin with a maximum depth of 5 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 with 1 public boat landing. Compared to the 4 other monitored lakes in Door County, Forestville Millpond ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2023-08-16. Methodology: how these readings are compared.
What Forestville Millpond is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- 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 Forestville Millpond 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 Forestville Millpond
These are the measurements Wisconsin DNR publishes for Forestville Millpond, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 3 ft of visibility. Phosphorus 94.3 µg/L. TSI 66.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 94.3µg/L | Poor 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. | 66 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Forestville Millpond
Answers come straight from the public measurements and survey records on this page.
Wisconsin DNR lists Panfish as common on Forestville Millpond.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Forestville Millpond’s water-quality measurements separately, and the water-quality trend over 4 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. Monitored by volunteers since 2005. 3 stations on file (most recent sample 2025).
Fish Species (DNR-rated)
DNR Reports & Resources
Wisconsin DNR Fisheries scientists publish multi-year survey reports for Forestville Millpond covering fish populations, stocking, water quality, and management. 2 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- 2024Forestville Millpond spring shocking survey, 2024Spring Shocking Survey · WI DNR · 2024 (PDF)
- 2016Forestville Millpond Fish Survey 2016Fisheries Survey · WI DNR · 2016 (PDF)
Lake Details
Max depth
5 ft
Surface area
65 acres
Public access
Yes
Listed by Wisconsin DNR
Recreation & Access
- Forestville Dam ParkPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Forestville Millpond
Compare lakeside cabins, hotels, and vacation rentals near Forestville Millpond in Door County, Wisconsin — 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 Forestville Millpond are listed below.
Top-rated places to stay near Forestville Millpond
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 Wisconsin’s top lakes →
Follow Forestville Millpond’s readings
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Fish Species
Click a species to see every lake where it is documented.
Fishing Forestville Millpond
- → Forestville Millpond fishing: DNR survey catch rates, species & stocking
- → Forestville Millpond fishing forecast & best times (species outlook + 14-day solunar calendar)
- → Forestville Millpond fishing regulations (limits, seasons, special rules)
- → Is it safe to eat fish from Forestville Millpond? (mercury & PFAS guide)
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 Trend: Worsening
Based on 4 years of monitoring (2022–2025).
Water clarity
Worsening4 years
Reservoir Info (USACE NID)
Forestville Millpond is a man-made reservoir impounded by the Forestville (completed 1877), built primarily for recreation on the AHNAPEE RIVER; earth-type dam, 10 ft tall and 1,200 ft long.
- Surface area
- 72 ac
- Normal storage
- 170 ac-ft
- Max storage
- 300 ac-ft
- Drainage area
- 31 sq mi
- Hazard class
- Low
- Owner
- Door County
Source: USACE National Inventory of Dams, NID ID WI00256 · Operator website · Matched by proximity (0.06 km)
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Forestville Millpond under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.
- Forestville Wastewater Treatment FacilityForestville · 0.9 mi away · NPDES WI0028894Recent violation
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 Door County
Frequently asked questions about Forestville Millpond
Where is Forestville Millpond?
- Forestville Millpond is a lake in Door County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Forestville Millpond?
- Forestville Millpond in Door County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 3 ft visibility. Phosphorus: 94.3 µg/L. Maximum depth: 5 ft. Surface area: 65 acres.
Is Forestville Millpond safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Forestville Millpond?
- Forestville Millpond has a maximum depth of 5 feet. The lake covers 65 acres.
What fish are in Forestville Millpond?
- Fish species found in Forestville Millpond include Panfish, Largemouth Bass, Smallmouth Bass, Northern Pike. Forestville Millpond is located in Door County, Wisconsin.
What did the DNR fisheries survey find at Forestville Millpond?
- Wisconsin DNR lists Panfish as common on Forestville Millpond. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Forestville Millpond’s water-quality measurements separately, and the water-quality trend over 4 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
Are there boat ramps on Forestville Millpond?
- Forestville Millpond has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Forestville Dam Park. Public access is listed as yes.
Can I fish at Forestville Millpond?
- Forestville Millpond has 1 documented boat landing in the USGS National Boat Ramps inventory. 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 Forestville Millpond across LakeQuality
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Where this data comes from
20 measurements from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX20 samples · 2023
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Fish and recreation data from Wisconsin DNR Lakes
Named boat-access points from the USGS National Boat Ramps inventory