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LakeQuality

Humboldt Park Lagoon Lake

Cook County, IllinoisView mapDirections

No nutrient or algae sampling on record from Illinois EPA for this lake.

  • Impaired · Algal growth
  • Limited data

Humboldt Park Lagoon Lake in Cook County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported.

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Humboldt Park Lagoon Lake is a lake in Cook County, Illinois.

Source: EPA Water Quality Portal sampling records, Illinois EPA, last sampled 2023-05-16. Methodology: how these readings are compared.

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Humboldt Park Lagoon Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, cause unknown, mercury, nutrients (phosphorus, nitrogen), turbidity. Check local advisories before you swim.

Whether Humboldt Park Lagoon 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.

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Water quality measurements for Humboldt Park Lagoon Lake

These are the measurements Illinois EPA publishes for Humboldt Park Lagoon 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.

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Answers come straight from the public measurements and survey records on this page.

Stays via Stay22

Stays near Humboldt Park Lagoon Lake

Compare lakeside cabins, hotels, and vacation rentals near Humboldt Park Lagoon Lake in Cook 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.

Top-rated places to stay near Humboldt Park Lagoon Lake

Prices for Oct 23–25, 4 adults. Change dates on the map below.

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Fishing Humboldt Park Lagoon Lake

EPA Impairment Status

Humboldt 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

Algal growthCause unknownMercuryNutrients (phosphorus, nitrogen)Turbidity

Designated uses not supporting: Aquatic life, Fish consumption, Other.

Source: EPA ATTAINS assessment unit IL_RHB · Official waterbody report

Nearby Lakes in Cook County

Frequently asked questions about Humboldt Park Lagoon Lake

Where is Humboldt Park Lagoon Lake?

Humboldt Park Lagoon 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 Humboldt Park Lagoon Lake?

Humboldt Park Lagoon Lake in Cook County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported.

Measurements on this page ↑

Is Humboldt Park Lagoon Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Humboldt Park Lagoon Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, cause unknown, mercury, nutrients (phosphorus, nitrogen), turbidity. Check local advisories before you swim.

Swimming on this page ↑

Planning a trip around Indiana Dunes?

Humboldt Park Lagoon Lake is about 36 miles from Indiana Dunes National Park. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.

Best time to visit Indiana Dunes →

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 CenterUSGS-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

Impairment status from EPA ATTAINS 303(d) database