Connecticut · Lake

Lake Lillinonah

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

3 species with advisories · contaminants: PCBs

Connecticut also has statewide guidance

Connecticut publishes rules that apply to lakes across the state — 2 recommendations covering 1 species — in addition to anything listed for Lake Lillinonah below.

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

See all Connecticut statewide guidance →

What's safe to eat from Lake Lillinonah

Channel Catfish

PCBs

SizeWhoGuidance
All sizes General population Do not eat due to elevated PCB.
Women who may become pregnant, pregnant or breastfeeding women, and children For women who may become pregnant, pregnant or breastfeeding women, and children: do not eat due to elevated PCB.

Source: official advisory· updated 2026-07-09

Largemouth Bass

PCBs

SizeWhoGuidance
All sizes General population Limit to 6 meals per year due to elevated PCB.
Women who may become pregnant, pregnant or breastfeeding women, and children For women who may become pregnant, pregnant or breastfeeding women, and children: do not eat due to elevated PCB.

Source: official advisory· updated 2026-07-09

Northern Pike

PCBs

SizeWhoGuidance
All sizes General population Do not eat due to elevated PCB.
Women who may become pregnant, pregnant or breastfeeding women, and children For women who may become pregnant, pregnant or breastfeeding women, and children: do not eat due to elevated PCB.

Source: official advisory· updated 2026-07-09

How to prepare fish from Lake Lillinonah

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

SpeciesSizeDaily limitOpen seasonKeep season
Rainbow Trout 9" min 5 Year-round 04-11 – 02-28
Largemouth Bass 12" min 6 Year-round Same as open
Smallmouth Bass 12" min 6 Year-round Same as open
Northern Pike 26" min 2 Year-round Same as open
Walleye 18" min 2 Year-round Same as open
Chain Pickerel 15" min 6 Year-round Same as open
Yellow Perch — — Year-round Same as open
Black Crappie — — Year-round Same as open
Bluegill — — Year-round Same as open
Channel Catfish — 6 Year-round Same as open

Official rules: Connecticut — Connecticut DEEP

Getting on the water

Access points from OpenStreetMap contributors.

About this water

State
Connecticut
Type
Lake
Location
41.4688, -73.3222
Advisory source
Connecticut DPH — If I Catch It, Can I Eat It?