Plainfield Lake
Plainfield Lake in Waushara County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.8 ft visibility. Maximum depth: 12 ft. Surface area: 29 acres.
Wisconsin DNR lists Panfish as present on Plainfield Lake. DNR survey details →
- Clarity
- 6.8 ft
- Max depth
- 12 ft
- Area
- 29 acres
- Public access
- Yes
Next lake in Waushara County
Swipe left or right on this bar to open the next or previous lake.
Why Plainfield 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 Plainfield 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.
Plainfield Lake is a 29-acre lake in Waushara County, Wisconsin with a maximum depth of 12 feet. The lake supports 1 documented fish species including Panfish. Public access is available.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2020-09-09. Grade methodology: LakeQuality methodology.
Watch Plainfield Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Plainfield Lake
These readings exist but are not enough for an A–F grade — see why.
Moderate clarity, visible to about 6.8 ft. Trophic State Index: 50.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.8 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 50 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Plainfield Lake
Compare lakeside cabins, hotels, and vacation rentals near Plainfield Lake in Waushara 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 Plainfield 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 →
Wisconsin DNR lists Panfish as present on Plainfield 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 Plainfield 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. 1 station on file (most recent sample 2020).
Fish Species (DNR-rated)
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 12 ft |
| Surface Area | 29 acres |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Plainfield 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.
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Plainfield Lake under Clean Water Act (NPDES) discharge permits.
- Plainfield Wastewater Treatment FacilityPlainfield, Village Of · 0.8 mi away · NPDES WI0060062
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 Plainfield Lake
Plainfield Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Waushara County
Frequently asked questions about Plainfield Lake
Where is Plainfield Lake?
- Plainfield Lake is a lake in Waushara 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 Plainfield Lake?
- Plainfield Lake in Waushara County, Wisconsin is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.8 ft visibility. Maximum depth: 12 ft. Surface area: 29 acres.
Is Plainfield Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Plainfield 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 Plainfield Lake?
- Plainfield Lake has a maximum depth of 12 feet. The lake covers 29 acres.
What fish are in Plainfield Lake?
- Fish species found in Plainfield Lake include Panfish. Plainfield Lake is located in Waushara County, Wisconsin.
What did the DNR fisheries survey find at Plainfield Lake?
- Wisconsin DNR lists Panfish as present on Plainfield 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 Plainfield Lake — official chemistry is on file, not a letter. Catch rate is not a swim clearance and is not a weekly bite report.
Explore Plainfield Lake across LakeQuality
Fish species and top-graded lakes across Wisconsin
Fish species and best lakes in Waushara County
Species activity outlook by water temperature and season
Where to stay at Wisconsin's top lakes, each with its grade
Wisconsin's cleanest and most-polluted lakes, ranked
More Wisconsin Lake Rankings
State Parks Near Plainfield Lake
Other Lakes in Wisconsin
Mesotrophic Lakes in Wisconsin
Where this data comes from
1 measurement from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX1 sample · 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
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Fish and recreation data from Wisconsin DNR Lakes