Wesslyn Cut Lake
Perry County, IllinoisView mapDirections
Illinois EPA publishes the water-quality measurements for Wesslyn Cut Lake. Here is what has been measured.
- Eutrophic
- Public access
- Limited data
Wesslyn Cut Lake in Perry County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Water clarity: 4.5 ft visibility. Phosphorus: 119 µg/L. Chlorophyll-a (algae): 19.3 µg/L.
Wesslyn Cut Lake is a productive, nutrient-rich eutrophic lake in Perry County, Illinois. Limited fish-species data available. Public access is available. Compared to the 1 other monitored lakes in Perry County, Wesslyn Cut Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Illinois EPA, last sampled 2021-10-05. Methodology: how these readings are compared.
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 Wesslyn Cut Lake is safe to swim in today is a call for the Illinois Environmental Protection Agency and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Wesslyn Cut Lake
These are the measurements Illinois EPA publishes for Wesslyn Cut Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 4.5 ft. Phosphorus 119 µg/L. Chlorophyll-a 19.3 µg/L. TSI 63.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 4.5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 119µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | 19.3µg/L | Fair GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 63 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Wesslyn Cut Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Wesslyn Cut Lake typically sits around 61°F at the surface in October. Summer average is about 61°F. Usually warmest in Jul (about 62°F) and coldest in Apr (about 53°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (53°F) to its warmest (62°F).
Typical surface water temperature by month, from 414 field readings (2016–2021) via the EPA Water Quality Portal. See the full Wesslyn Cut Lake water temperature breakdown →
Stays via Stay22
Stays near Wesslyn Cut Lake
Compare lakeside cabins, hotels, and vacation rentals near Wesslyn Cut Lake in Perry County, Illinois — 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 Wesslyn Cut Lake are listed below.
Top-rated places to stay near Wesslyn Cut Lake
Prices for Oct 23–25, 4 adults. Change dates on the map below.
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Fishing Wesslyn Cut Lake
Regulated Pollution Sources Nearby
3 EPA-permitted facilities operate within about 5 miles of Wesslyn Cut Lake under Clean Water Act (NPDES) discharge permits. 2 facilities have a reported Clean Water Act violation in the past three years.
- Pinckneyville Stp 2 East, City OfPinckneyville · 4.4 mi away · NPDES IL0071650Recent violation
- Pinckneyville - Stp 1, City OfPinckneyville · 4.5 mi away · NPDES IL0021997Recent violation
- Il Dnr-Pyramid MinePinckneyville · 0.8 mi away · NPDES IL0048623
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 Perry County
Frequently asked questions about Wesslyn Cut Lake
Where is Wesslyn Cut Lake?
- Wesslyn Cut Lake is a lake in Perry County, Illinois. Its water-quality measurements are published by Illinois EPA and shown on this page as reported.
What is the water quality of Wesslyn Cut Lake?
- Wesslyn Cut Lake in Perry County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Water clarity: 4.5 ft visibility. Phosphorus: 119 µg/L. Chlorophyll-a (algae): 19.3 µg/L.
Is Wesslyn Cut Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Wesslyn Cut Lake?
- Wesslyn Cut Lake typically sits around 61°F at the surface in October, from 414 EPA Water Quality Portal field readings (2016–2021). That is a typical value for the month, not a live reading.
Can I fish at Wesslyn Cut Lake?
- Public access to Wesslyn Cut Lake is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by Illinois's fish and wildlife agency, so check its current regulations before you go.
Explore Wesslyn Cut Lake across LakeQuality
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Where this data comes from
48 measurements from 3 monitoring stations, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- illinois epa
IL_EPA_WQX48 samples · 2021
Analytical methods
- MEASURED IN FIELD
- Phosphorus by Colorimetry
- 10200 H 2 ~ Chlorophyll a-b-c Determination by spectrophotometer
Monitoring station identifiers (3)
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)