Just a quick update. I found out from a gentleman on Tampier that there is no cast netting of bait fish of any sort on the lake. I later found that this included all Cook County Forest Preserve ponds/lakes. Read the below from the Illinois DNR 2021 fishing regulations.
36) Sport fishermen may not use a minnow seine, minnow trap, cast net or shad scoop for bait collecting in the following water areas:
Charleston Lower Channel Lake tailwaters from that portion of the Embarras River from the Charleston Lower Channel Lake Dam downstream to the Route 130 Bridge.
Clinton Lake tailwaters from that portion of Salt Creek from the Clinton Dam downstream to the Route 10 Bridge.
Cook County Forest Preserve District Waters (except in the Des Plaines River).
Lake Decatur tailwaters from that portion of the Sangamon River from the Lake Decatur Dam downstream to the Route 48 Bridge.