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Illinois · Randolph County · Lake

Randolph County Lake

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

3 species with advisories · contaminants: Mercury, PFOS

Illinois also has statewide guidance

Illinois publishes rules that apply to lakes across the state — 1 recommendation covering 1 species — in addition to anything listed for Randolph County Lake 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 Randolph County Lake

Channel Catfish

Mercury

SizeWhoGuidance
All sizes Women who may become pregnant & children under 15 For women who may become pregnant, pregnant or breastfeeding women, and children under 15: limit to one meal per week due to elevated Mercury.

Source: official advisory· updated 2026-09-22

Largemouth Bass

PFOS

SizeWhoGuidance
All sizes General population Limit to one meal per month due to elevated PFOS.

Source: official advisory· updated 2026-09-22

Redear Sunfish

Mercury

SizeWhoGuidance
All sizes Women who may become pregnant & children under 15 For women who may become pregnant, pregnant or breastfeeding women, and children under 15: limit to one meal per week due to elevated Mercury.

Source: official advisory· updated 2026-09-22

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

About this water

State
Illinois
County
Randolph
Type
Lake
Location
37.9734, -89.7963
Advisory source
Illinois Dept. of Public Health — Fish Advisories