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Addison Creek
 Addison Creek at Bellwood, IL
Apple River
 Apple River near Hanover, IL
Bay Creek
 Bay Creek at Pittsfield, IL
Bear Creek
 Bear Creek near Marcelline, IL
Big Bureau Creek
 Big Bureau Creek at Princeton, IL
Big Muddy River
 Big Muddy River at Murphysboro, IL
 Big Muddy River at Plumfield, IL
 Big Muddy River at Route 127 at Murphysboro, IL
 Big Muddy River near Mt. Vernon, IL
 Big Muddy Subimpoundment near Waltonville, IL
Blackberry Creek
 Blackberry Creek near Montgomery, IL
 Blackberry Creek near Yorkville, IL
Boneyard Creek
 Boneyard Creek at Race Street at Urbana, IL
 Boneyard Creek at Urbana, IL
Bonpas Creek
 Bonpas Creek at Browns, IL
Buffalo Creek
 Buffalo Creek near Wheeling, IL
Butterfield Creek
 Butterfield Creek at Flossmoor, IL
Cache River
 Cache River at Forman, IL
Cahokia Creek
 Cahokia Creek at Edwardsville, IL
Casey Fork
 Casey Fork at Mount Vernon, IL
 Casey Fork Subimpoundment near Bonnie, IL
Channel Lake
 Channel Lake near Antioch, IL
Chicago River
 Chicago River at Chicago Lock at Chicago, IL
 North Branch Chicago River at Albany Avenue at Chicago, IL
 North Branch Chicago River at Deerfield, IL
 North Branch Chicago River at Niles, IL
 West Fork of North Branch Chicago River at Northbrook, IL
Chicago Sanitary and Ship Canal
 Chicago Sanitary and Ship Canal at Romeoville, IL
Crab Orchard Creek
 Crab Orchard Creek near Marion, IL
Crooked Creek
 Crooked Creek near Hoffman, IL
Deer Creek
 Deer Creek near Chicago Heights, IL
Des Plaines River
 Des Plaines River at Riverside, IL
 Des Plaines River at Russell, IL
 Des Plaines River near Des Plaines, IL
 Des Plaines River near Gurnee, IL
Drainage Ditch
 Drainage Ditch at Libertyville, IL
Du Page River
 Du Page River at Shorewood, IL
 East Branch Du Page River at Bolingbrook, IL
 East Branch Du Page River near Downers Grove, IL
 West Branch Du Page River near Naperville, IL
 West Branch Du Page River near Warrenville, IL
 West Branch Du Page River near West Chicago, IL
Edwards River
 Edwards River near New Boston, IL
 Edwards River near Orion, IL
Elkhorn Creek
 Elkhorn Creek near Penrose, IL
Embarras River
 Embarras River at Ste. Marie, IL
 Embarras River near Camargo, IL
 North Fork Embarras River near Oblong, IL
Ferson Creek
 Ferson Creek near St. Charles, IL
Flag Creek
 Flag Creek near Willow Springs, IL
Fox Lake
 Fox Lake near Lake Villa, IL
Fox River
 Fox River at Algonquin, IL
 Fox River at Dayton, IL
 Fox River at Johnsburg, IL
 Fox River at South Elgin, IL
 Fox River near Mc Henry, IL
Green River
 Green River near Geneseo, IL
Henderson Creek
 Henderson Creek near Oquawka, IL
Hickory Creek
 Hickory Creek at Joliet, IL
 Hickory Creek near Brownstown, IL
Hurricane Creek
 Hurricane Creek near Mulberry Grove, IL
Illinois River
 Illinois River at Copperas Creek, IL
 Illinois River at Hardin, IL
 Illinois River at Henry, IL
 Illinois River at Kingston Mines, IL
 Illinois River at Marseilles, IL
 Illinois River at Meredosia, IL
 Illinois River at Valley City, IL
Indian Creek
 Indian Creek at Wanda, IL
 Indian Creek near Wyoming, IL
Iroquois River
 Iroquois River at Iroquois, IL
 Iroquois River near Chebanse, IL
Judy's Branch
 Judy's Branch at Engeling Bd at Glen Carbon, IL
 Judy's Branch at Oak Lawn Estates at Glen Carbon, IL
 Judy's Branch at Route 157 at Glen Carbon, IL
 Judy's Branch Tributary at Glen Carbon, IL
Kankakee River
 Kankakee River at Momence, IL
 Kankakee River near Wilmington, IL
Kaskaskia River
 East Fork Kaskaskia River near Sandoval, IL
 Kaskaskia River at Carlyle, IL
 Kaskaskia River at Chesterville, IL
 Kaskaskia River at Cooks Mills, IL
 Kaskaskia River at Shelbyville, IL
 Kaskaskia River at Vandalia, IL
 Kaskaskia River near Cowden, IL
 Kaskaskia River near Posey, IL
 Kaskaskia River near Red Bud, IL
 Kaskaskia River near Venedy Station, IL
Kickapoo Creek
 Kickapoo Creek at Waynesville, IL
Kishwaukee River
 Kishwaukee River at Belvidere, IL
 Kishwaukee River near Perryville, IL
 South Branch Kishwaukee River at Dekalb, IL
 South Branch Kishwaukee River near Fairdale, IL
Kress Creek
 Kress Creek at West Chicago, IL
La Moine River
 La Moine River at Colmar, IL
 La Moine River at Ripley, IL
Lake Fork
 Lake Fork at Atwood, IL
 Lake Fork near Cornland, IL
Lake Michigan
 Lake Michigan at Chicago Lock at Chicago, IL
Little Calumet River
 Little Calumet River at South Holland, IL
Little Crooked Creek
 Little Crooked Creek near New Minden, IL
Little Wabash River
 Little Wabash River at Carmi, IL
 Little Wabash River at Main Street at Carmi, IL
 Little Wabash River below Clay City, IL
 Little Wabash River near Effingham, IL
Long Run
 Long Run near Lemont, IL
Lusk Creek
 Lusk Creek near Eddyville, IL
Mackinaw River
 Mackinaw River near Congerville, IL
 Mackinaw River near Green Valley, IL
Macoupin Creek
 Macoupin Creek near Kane, IL
Mazon River
 Mazon River near Coal City, IL
McDonald Creek
 McDonald Creek near Mount Prospect, IL
Midlothian Creek
 Midlothian Creek at Oak Forest, IL
Mill Creek
 Mill Creek at Milan, IL
 Mill Creek at Old Mill Creek, IL
 Mill Creek near Batavia, IL
Mississippi River
 Mississippi River at Chester, IL
 Mississippi River at Grafton, IL
 Mississippi River at Hartford, IL
 Mississippi River at Thebes, IL
 Mississippi River Pool Lock & Dam 26 at Alton, IL
Nippersink Creek
 Nippersink Creek above Wonder Lake, IL
 Nippersink Creek near Spring Grove, IL
Nippersink Lake
 Nippersink Lake at Fox Lake, IL
North Shore Channel
 North Shore Channel at Wilmette, IL
Ohio River
 Ohio River at Dam 51 at Golconda, IL
 Ohio River at Dam 53 near Grand Chain, IL
 Ohio River at Metropolis, IL
Pecatonica River
 Pecatonica River at Freeport, IL
Pope Creek
 Pope Creek near Keithsburg, IL
Poplar Creek
 Poplar Creek at Elgin, IL
Rayse Creek
 Rayse Creek near Waltonville, IL
Richland Creek
 Richland Creek near Hecker, IL
Robinson Creek
 Robinson Creek near Shelbyville, IL
Rock River
 Rock River at Byron, IL
 Rock River at Como, IL
 Rock River at Rockton, IL
 Rock River near Joslin, IL
Saline River
 South Fork Saline River near Carrier Mills, IL
Salt Creek
 Salt Creek at 22nd Street at Oak Brook, IL
 Salt Creek at Brookfield, IL
 Salt Creek at Elmhurst, IL
 Salt Creek at Rolling Meadows, IL
 Salt Creek at Western Springs, IL
 Salt Creek at Wood Dale, IL
 Salt Creek near Elk Grove Village, IL
 Salt Creek near Greenview, IL
 Salt Creek near Rowell, IL
Sangamon River
 Sangamon River at Fisher, IL
 Sangamon River at Monticello, IL
 Sangamon River at Riverton, IL
 Sangamon River at Route 48 at Decatur, IL
 Sangamon River near Oakford, IL
 South Fork Sangamon River below Rochester, IL
 South Fork Sangamon River near Rochester, IL
Sawmill Creek
 Sawmill Creek near Lemont, IL
Shoal Creek
 East Fork Shoal Creek near Coffeen, IL
 Shoal Creek near Breese, IL
 Shoal Creek near Pierron, IL
Silver Creek
 Silver Creek near Freeburg, IL
 Silver Creek near Troy, IL
Sinsinawa River
 Sinsinawa River near Menominee, IL
Skillet Fork
 Skillet Fork at Wayne City, IL
Skokie River
 Skokie River at Lake Forest, IL
 Skokie River near Highland Park, IL
Spoon River
 Spoon River at London Mills, IL
 Spoon River at Seville, IL
Spring Brook
 Spring Brook at 87th Street near Naperville, IL
Spring Creek
 Spring Creek at Springfield, IL
Squaw Creek
 Squaw Creek at Round Lake, IL
St. Joseph Creek
 St. Joseph Creek at US Route 34 at Lisle, IL
Sugar Creek
 Sugar Creek at Milford, IL
 Sugar Creek near Bloomington, IL
Thorn Creek
 Thorn Creek at Thornton, IL
Tinley Creek
 Tinley Creek near Palos Park, IL
Tyler Creek
 Tyler Creek at Elgin, IL
Vermilion River
 Middle Fork Vermilion River above Oakwood, IL
 North Fork Vermilion River near Bismarck, IL
 Vermilion River at Pontiac, IL
 Vermilion River near Danville, IL
 Vermilion River near Leonore, IL
Wabash River
 Wabash River at Mt. Carmel, IL
Weller Creek
 Weller Creek at Des Plaines, IL
West Okaw River
 West Okaw River near Lovington, IL
Whitley Creek
 Whitley Creek near Allenville, IL
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