Illinois Fish Advisory
Illinois Fish Advisory | Cook County Water Bodies

The following meal advisories for fish found with elevated levels of chlordane, methylmercury and polychlorinated biphenyls (PCBs) are based primarily on protecting sensitive populations, particularly women of childbearing age, pregnant women, fetuses, nursing mothers and children younger than 15 years of age. All advisories may be overprotective for women beyond childbearing age and males 15 years of age and older.

PLEASE NOTE: THE METHYLMERCURY ADVISORY APPLIES TO PREDATOR FISH – all species of black bass (largemouth, smallmouth and spotted), striped bass, white bass, hybrid striped bass, walleye, sauger, saugeye, flathead catfish, muskellunge and northern pike – IN ALL ILLINOIS WATERS. For more information on mercury in Illinois fish, see the "SPECIAL MERCURY ADVISORY", "Facts About Illinois' Methylmercury Advisory", "Facts About Illinois' Chlordane Advisory" and "Facts About Illinois' Polychlorinated Biphenyls (PCBs) Advisory"



  1) Lake Michigan
2) Busse Lake
3) Calumet River
  a.) Calumet River
  b.) Calumet Sag Channel
  c.) Little Calumet River
4) Campus Lake
5) Casey Fork Creek
6) Cedar Lake
7) Fox Chain-O-Lakes
8) Chicago River
  a.) Chicago River
  b.) North Branch
  c.) South Branch
  d.) North Shore Channel
  e.) Sanitary and Ship Channel
9) Crab Orchard Lake
  a.) East of Wolf Creek Road
  b.) West of Wolf Creek Road
10) Des Plaines River
  a.) Lockport to Kankakee River
  b.) Forest Park to Lockport
11) Fox River
12) Frank Holten Lakes
13) Galena River
14) Highland-Silver Lake
15) Horseshoe Lake
16) Illinois River
  a.) Peoria Pool
  b.) Starved Rock
  b.) Headwaters to Marseilles
17) Kaskaskia River
18) Kinkaid Lake
19) Kishwaukee River
20) Kishwaukee River South Branch
21) Lake Bracken
22) Lake Calumet
23) Lake Decatur
24) Lake Taylorville
25) Mackinaw River
26) Mazon River
27) Midlothian Reservoir
28) Missippippi River
  a.) Mississippi River
  b.) River except Pool 15
  c.) Pool 15
  d.) Wisconsin to Lock 26
  e.) Lock 22 to Cairo
29) Ohio River
30) Pecatonica River
31) Powerton Lake
32) Rock River
33) Saganashkee Slough
34) Sangamon River
35) Schiller Pond
36) Skillet Fork Creek
37) Sangamon River South Fork
38) Sugar River
39) Sycamore Lake
40) Wabash River
41) Wolf Lake

Click on a listed body of water or corresponding number on the map for more detailed information

{short description of image} Lake Calumet Midlothian Reservoir Calumet River Calumet River Wolf Lake Calumet River Schiller Pond Busse Lake Saganashkee Slough Des Plaines River Chicago River Chicago River Chicago River Chicago River Chicago River Fax Chain-O-Lakes Lake Michigan Mississippi River Mississippi River Mississippi River

Printer Friendly Version of Advisory - PDF