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LakeQuality

Upper Park Falls Flowage Lake

NR
Not yet rated
3.5 ft clear · Eutrophic · 310 acres
Limited DataEutrophic

Upper Park Falls Flowage Lake in Price County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 3.5 ft visibility. Maximum depth: 17 ft. Surface area: 310 acres.

Wisconsin DNR rates Northern Pike as abundant on Upper Park Falls Flowage Lake. DNR survey details →

Clarity
3.5 ft
Max depth
17 ft
Area
310 acres
Public access
Yes

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Why Upper Park Falls Flowage Lake has no grade

We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Upper Park Falls Flowage Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).

Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.

Sampling is run by WI DNR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.

Upper Park Falls Flowage Lake is a 310-acre lake in Price County, Wisconsin with a maximum depth of 17 feet. The lake supports 6 documented fish species including Musky, Panfish, and Smallmouth Bass. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2020-08-12. Grade methodology: LakeQuality methodology.

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Swimming Safety

Not rated

Limited data

Not rated for swimming — there is not enough monitoring data to judge this lake

Compare the safest swimming lakes near Minocqua

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Water quality measurements for Upper Park Falls Flowage Lake

These readings exist but are not enough for an A–F grade — see why.

Murky, only visible to about 3.5 ft. Trophic State Index: 59.

MetricValueGrade
Water Clarity (Secchi Depth)3.5 ftNot graded
PhosphorusNo recent samples
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)59Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Upper Park Falls Flowage Lake

Compare lakeside cabins, hotels, and vacation rentals near Upper Park Falls Flowage Lake in Price 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.

Top-rated places to stay near Upper Park Falls Flowage Lake

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 →

DNR fisheries survey

Wisconsin DNR rates Northern Pike as abundant on Upper Park Falls Flowage Lake.

A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Upper Park Falls Flowage Lake — official chemistry is on file, not a letter. 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. 2 stations on file (most recent sample 2020).

Fish Species (DNR-rated)

Northern Pike(Abundant)Musky(Common)Panfish(Common)Smallmouth Bass(Common)Walleye(Common)Sturgeon(Common)

Lake Details

CharacteristicValue
Maximum Depth17 ft
Surface Area310 acres
Public AccessYes

Lake Size & Watershed

Watershed (drainage) area
697 sq mi
Shoreline
9.3 mi
Elevation
1,483 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).

Recreation & Access

1
Boat Landings
Yes
Public Access
  • Hines ParkPublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Fish Species

Click a species to see every graded lake where it is documented.

Fishing Upper Park Falls Flowage 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.

Chinese Mystery Snail

Reservoir Info (USACE NID)

Upper Park Falls Flowage Lake is a man-made reservoir impounded by the Upper Dam (completed 1916), built primarily for hydroelectric on the North Fork Flambeau; gravity-type dam, 18 ft tall and 200 ft long.

Surface area
432 ac
Normal storage
3,279 ac-ft
Max storage
3,280 ac-ft
Drainage area
720 sq mi
Hazard class
Low
Owner
Flambeau Hydro, Llc

Source: USACE National Inventory of Dams, NID ID WI00786 · Operator website · Matched by proximity (0.72 km)

EPA Impairment Status

Upper Park Falls Flowage Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

MercuryMetals (other than mercury)

Source: EPA ATTAINS assessment unit WI10003679 · Official waterbody report · Matched by proximity (2.16 km)

Regulated Pollution Sources Nearby

1 EPA-permitted facility operate within about 5 miles of Upper Park Falls Flowage Lake under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger. 1 facility has a reported Clean Water Act violation in the past three years.

  • Flambeau River Papers Llc
    Park Falls · 0.7 mi away · NPDES WI0003212
    MajorRecent 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.

Graded lakes near Upper Park Falls Flowage Lake

Upper Park Falls Flowage Lake has no grade, but these lakes within a short drive do.

Nearby Lakes in Price County

Frequently asked questions about Upper Park Falls Flowage Lake

Where is Upper Park Falls Flowage Lake?

Upper Park Falls Flowage Lake is a lake in Price County, Wisconsin. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.

What is the water quality grade for Upper Park Falls Flowage Lake?

Upper Park Falls Flowage Lake in Price County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 3.5 ft visibility. Maximum depth: 17 ft. Surface area: 310 acres.

Is Upper Park Falls Flowage Lake safe to swim in?

Not rated for swimming — there is not enough monitoring data to judge this lake. Upper Park Falls Flowage Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.

How deep is Upper Park Falls Flowage Lake?

Upper Park Falls Flowage Lake has a maximum depth of 17 feet. The lake covers 310 acres.

What fish are in Upper Park Falls Flowage Lake?

Fish species found in Upper Park Falls Flowage Lake include Musky, Panfish, Smallmouth Bass, Northern Pike, Walleye, Sturgeon. Upper Park Falls Flowage Lake is located in Price County, Wisconsin.

What did the DNR fisheries survey find at Upper Park Falls Flowage Lake?

Wisconsin DNR rates Northern Pike as abundant on Upper Park Falls Flowage Lake. A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality does not assign an A–F grade on Upper Park Falls Flowage Lake — official chemistry is on file, not a letter. Catch rate is not a swim clearance and is not a weekly bite report.

Are there boat ramps on Upper Park Falls Flowage Lake?

Upper Park Falls Flowage Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Hines Park. Public access is listed as yes.

Where this data comes from

3 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Wisconsin Department of Natural ResourcesWIDNR_WQX3 samples · 2020
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

Impairment status from EPA ATTAINS 303(d) database

Regulated discharger data from EPA ECHO (ICIS-NPDES)

Lake size & watershed from HydroLAKES (HydroSHEDS)

Fish and recreation data from Wisconsin DNR Lakes

Named boat-access points from the USGS National Boat Ramps inventory