Columbus Park Lagoon Lake is a productive, nutrient-rich eutrophic lake in Cook County, Illinois. Water quality is graded F based on 1 sampling years through 2023. Compared to the 67 other monitored lakes in Cook County, Columbus Park Lagoon Lake ranks #62 for water quality.
Source: EPA Water Quality Portal sampling records, Illinois DNR, last sampled 2023-05-15. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 2.5 ft of visibility. Trophic State Index: 64.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.5 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 64 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Columbus Park Lagoon Lake
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Fishing Columbus Park Lagoon Lake
Location
County Ranking
Ranked #62 of 68 lakes in Cook County
Nearby Lakes in Cook County
Explore Columbus Park Lagoon Lake across LakeGrade
More Illinois Lake Rankings
Other Grade F Lakes in Illinois
Eutrophic Lakes in Illinois
More records, surveys & data sources
EPA Impairment Status
Columbus Park Lagoon Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit IL_RHT · Official waterbody report · Matched by proximity (0.05 km)
Regulated Pollution Sources Nearby
4 EPA-permitted facilities operate within about 5 miles of Columbus Park Lagoon Lake under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger. 2 facilities have a reported Clean Water Act violation in the past three years.
- Mwrdgc Stickney WrpChicago · 4.1 mi away · NPDES IL0028053MajorRecent violation
- Commonwealth Edison-Maywood Technical CenterMaywood · 3.2 mi away · NPDES IL0059064Recent violation
- Navistar, IncMelrose Park · 4.5 mi away · NPDES IL0002046
- Combined Sewer OverflowsForest View · 4.9 mi away · NPDES IL0020800
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.
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-05-15
Monitoring stations: 1