Where is Tampier Slough?

Tampier Slough is a lake in Cook County, Illinois. Its water-quality measurements are published by Illinois EPA and shown on this page as reported.

Tampier Slough

Cook County, Illinois53 acresView map Directions

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

Area

53 acres

Surface area

Shoreline

2.1 mi

Measured length

Impaired · Nutrients (phosphorus, nitrogen)

See the measurements Directions Where to stay

Tampier Slough in Cook County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Surface area: 53 acres.

Loading map…

Tampier Slough is a 53-acre lake in Cook County, Illinois.

Source: EPA Water Quality Portal sampling records, Illinois EPA. Methodology: how these readings are compared.

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Tampier Slough is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), turbidity. Check local advisories before you swim.

Whether Tampier Slough 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.

Compare swimming lakes near Chicago →

Get alerts for Tampier Slough →

Water quality measurements for Tampier Slough

These are the measurements Illinois EPA publishes for Tampier Slough, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Tampier Slough

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

Lake Details

Surface area

53 acres

Shoreline

2.1 mi

No bathymetric survey has been published for Tampier Slough, so its depth is not documented here.

Stays via Stay22

Stays near Tampier Slough

Compare lakeside cabins, hotels, and vacation rentals near Tampier Slough 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 Tampier Slough

Prices for Oct 9–11, 4 adults. Change dates on the map below.

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 Illinois’s top lakes →

Follow Tampier Slough’s readings

Email me when new measurements post for this lake. Updates stay free.

Or email

Fishing Tampier Slough

→ Tampier Slough fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Tampier Slough is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Nutrients (phosphorus, nitrogen)Turbidity

Designated uses not supporting: Other.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit IL_RGZO · Official waterbody report

Nearby Lakes in Cook County

Tampier Lake1.7 ft clear · Eutrophic0.6 miView →Horsetail Lake2.2 ft clear · Hypereutrophic2 miView →Saganashkee Slough Lake0.8 ft clear · Hypereutrophic2.7 miView →Orland Lake2.2 miView →Sag Quarry East Lake5.4 ft clear · Hypereutrophic2.8 miView →Sag Quarry West Lake4.2 ft clear · Eutrophic2.8 miView →

Frequently asked questions about Tampier Slough

Where is Tampier Slough?: Tampier Slough 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 Tampier Slough?: Tampier Slough in Cook County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Surface area: 53 acres.
Is Tampier Slough safe to swim in?: Nutrient and algae readings are not a swimming clearance. Tampier Slough is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), turbidity. Check local advisories before you swim.