Palatine Marsh South Lake
Cook County, IllinoisView mapDirections
No nutrient or algae sampling on record from Illinois EPA for this lake.
- 42 ft max depth
- Limited data
Ask about Palatine Marsh South Lake
Answers come straight from the public measurements and survey records on this page.
Palatine Marsh South Lake in Cook County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported.
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Palatine Marsh South Lake is a lake in Cook County, Illinois with an estimated average depth of about 42 feet.
Source: EPA Water Quality Portal sampling records, Illinois EPA, last sampled 2023-03-30. Grade methodology: LakeQuality methodology.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Palatine Marsh South 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 Palatine Marsh South Lake
These are the measurements Illinois EPA publishes for Palatine Marsh South 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.
| Metric | Value | EPA condition class |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~42 ft est. |
| Average Depth | ~8 ft est. |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Illinois has not published bathymetry for Palatine Marsh South Lake.
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Fishing Palatine Marsh South Lake
Nearby Lakes in Cook County
Frequently asked questions about Palatine Marsh South Lake
Where is Palatine Marsh South Lake?
- Palatine Marsh South Lake is a lake in Cook County, Illinois. Its water-quality measurements are published by Illinois EPA and shown on this page as reported.
What is the water quality of Palatine Marsh South Lake?
- Palatine Marsh South Lake in Cook County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported.
Is Palatine Marsh South Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Palatine Marsh South Lake?
- No published bathymetric survey covers Palatine Marsh South Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 42 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
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Where this data comes from
1 measurement from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- USGS Illinois Water Science Center
USGS-IL1 sample · 2023
Analytical methods
- Secchi disk method
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)