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Illinois · DuPage County · River

East Branch of the DuPage River

Is the fish you caught here safe to eat? Below is every consumption advisory on file for East Branch of the DuPage River, by species and size, in plain English — plus what's legal to keep.

1 species with advisories · contaminants: PCBs

Illinois also has statewide guidance

Illinois publishes rules that apply to rivers across the state — 1 recommendation covering 1 species — in addition to anything listed for East Branch of the DuPage River below.

Strictest statewide rule: All Other Species — For women who may become pregnant, pregnant or breastfeeding women, and children under 15: limit to one meal per week due to elevated Mercury.

See all Illinois statewide guidance →

What's safe to eat from East Branch of the DuPage River

Common Carp

PCBs

SizeWhoGuidance
All sizes General population Limit to one meal per week due to elevated PCB.

Source: official advisory· updated 2026-09-22

How to prepare fish from East Branch of the DuPage River

Some contaminants build up in fat and skin, so cleaning and cooking can lower your exposure. Others — mercury and PFAS — are in the muscle itself and trimming does nothing.

PCBs

  • Skin the fish — most of the contaminant sits in the fat just under the skin.
  • Trim the fatty areas away: the belly flap, the top of the back, and the dark lateral line down each side.
  • Cook on a rack — grill, broil, or bake — so the fat drips off the fillet.
  • Throw the drippings out; don't use them for soup, sauce, or chowder.
  • Choose smaller, younger fish — they've had less time to build it up.

Is it legal to keep?

These are Illinois's statewide limits — a water-specific rule may override them. Always verify the current regulations before keeping a fish.

SpeciesSizeDaily limitOpen seasonKeep season
Largemouth Bass 14" min 6 Year-round Same as open
Walleye 14" min 6 Year-round Same as open
Muskellunge 36" min 1 Year-round Same as open
Northern Pike 24" min 3 Year-round Same as open
Black Crappie 25 Year-round Same as open
Channel Catfish 6 Year-round Same as open

Official rules: Illinois — Illinois DNR

Getting on the water

Access points from OpenStreetMap contributors.

About this water

State
Illinois
County
DuPage
Type
River
Location
41.8357, -88.0863
Advisory source
Illinois Dept. of Public Health — Fish Advisories