ID305B WATERBODY NAME / LOCATION CAUSE NAME CYCLE FIRST LISTED USE CLASS WATER QUALITY CATEGORY HUC NO HUC NAME WATERSHED BASIN TMDL Planning Area Water Type Water Size Units MT39F001_010 "THOMPSON CREEK, Wyoming border to mouth (Little Missouri River)" Cadmium 2006 C-3 5 10110201 Upper Little Missouri Little Missouri/Belle Fourche Yellowstone Little Missouri RIVER 41.2 MILES MT39F001_010 "THOMPSON CREEK, Wyoming border to mouth (Little Missouri River)" Copper 2006 C-3 5 10110201 Upper Little Missouri Little Missouri/Belle Fourche Yellowstone Little Missouri RIVER 41.2 MILES MT39F001_010 "THOMPSON CREEK, Wyoming border to mouth (Little Missouri River)" Iron 2006 C-3 5 10110201 Upper Little Missouri Little Missouri/Belle Fourche Yellowstone Little Missouri RIVER 41.2 MILES MT39F001_010 "THOMPSON CREEK, Wyoming border to mouth (Little Missouri River)" Zinc 2006 C-3 5 10110201 Upper Little Missouri Little Missouri/Belle Fourche Yellowstone Little Missouri RIVER 41.2 MILES MT39F001_020 "LITTLE MISSOURI RIVER, Wyoming border to South Dakota border" "Nitrogen, Total" 2006 C-3 5 10110201 Upper Little Missouri Little Missouri/Belle Fourche Yellowstone Little Missouri RIVER 106.1 MILES MT39F001_020 "LITTLE MISSOURI RIVER, Wyoming border to South Dakota border" Copper 2006 C-3 5 10110201 Upper Little Missouri Little Missouri/Belle Fourche Yellowstone Little Missouri RIVER 106.1 MILES MT39F001_020 "LITTLE MISSOURI RIVER, Wyoming border to South Dakota border" Lead 2006 C-3 5 10110201 Upper Little Missouri Little Missouri/Belle Fourche Yellowstone Little Missouri RIVER 106.1 MILES MT39F001_020 "LITTLE MISSOURI RIVER, Wyoming border to South Dakota border" Iron 2006 C-3 5 10110201 Upper Little Missouri Little Missouri/Belle Fourche Yellowstone Little Missouri RIVER 106.1 MILES MT39F001_020 "LITTLE MISSOURI RIVER, Wyoming border to South Dakota border" "Phosphorus, Total" 2006 C-3 5 10110201 Upper Little Missouri Little Missouri/Belle Fourche Yellowstone Little Missouri RIVER 106.1 MILES MT39F001_020 "LITTLE MISSOURI RIVER, Wyoming border to South Dakota border" Zinc 2006 C-3 5 10110201 Upper Little Missouri Little Missouri/Belle Fourche Yellowstone Little Missouri RIVER 106.1 MILES MT39F001_020 "LITTLE MISSOURI RIVER, Wyoming border to South Dakota border" Cadmium 2006 C-3 5 10110201 Upper Little Missouri Little Missouri/Belle Fourche Yellowstone Little Missouri RIVER 106.1 MILES MT40A001_010 "MUSSELSHELL RIVER, North & South Fork confluence to Deadmans Basin Diversion Canal" Escherichia coli (E. Coli) 2018 B-2 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 55.3 MILES MT40A001_010 "MUSSELSHELL RIVER, North & South Fork confluence to Deadmans Basin Diversion Canal" Iron 2018 B-2 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 55.3 MILES MT40A001_020 "MUSSELSHELL RIVER, Deadmans Basin Supply Canal to HUC boundary near Roundup" Sediment 1998 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 94.5 MILES MT40A001_020 "MUSSELSHELL RIVER, Deadmans Basin Supply Canal to HUC boundary near Roundup" Escherichia coli (E. Coli) 2018 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 94.5 MILES MT40A001_020 "MUSSELSHELL RIVER, Deadmans Basin Supply Canal to HUC boundary near Roundup" Lead 2018 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 94.5 MILES MT40A001_020 "MUSSELSHELL RIVER, Deadmans Basin Supply Canal to HUC boundary near Roundup" Iron 2018 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 94.5 MILES MT40A002_012 "NORTH FORK MUSSELSHELL RIVER, Bair Reservoir to confluence with South Fork Musselshell River" "Phosphorus, Total" 2018 B-1 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 24.3 MILES MT40A002_012 "NORTH FORK MUSSELSHELL RIVER, Bair Reservoir to confluence with South Fork Musselshell River" Iron 2018 B-1 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 24.3 MILES MT40A002_012 "NORTH FORK MUSSELSHELL RIVER, Bair Reservoir to confluence with South Fork Musselshell River" Escherichia coli (E. Coli) 2018 B-1 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 24.3 MILES MT40A002_030 "TRAIL CREEK, headwaters to mouth (North Fork Musselshell River)" "Phosphorus, Total" 2018 B-1 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 10.1 MILES MT40A002_030 "TRAIL CREEK, headwaters to mouth (North Fork Musselshell River)" Sediment 2006 B-1 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 10.1 MILES MT40A002_040 "MILL CREEK, headwaters to mouth (North Fork Musselshell River)" Sediment 1992 B-1 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 4.8 MILES MT40A002_050 "CARELESS CREEK, confluence with Swimming Woman Creek to mouth (Musselshell River)" Iron 2018 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Careless Creek RIVER 20.8 MILES MT40A002_070 "FISH CREEK, headwaters to mouth (Musselshell River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 98.6 MILES MT40A002_070 "FISH CREEK, headwaters to mouth (Musselshell River)" Escherichia coli (E. Coli) 2018 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 98.6 MILES MT40A002_070 "FISH CREEK, headwaters to mouth (Musselshell River)" Iron 2018 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 98.6 MILES MT40A002_080 "PAINTED ROBE CREEK, headwaters to mouth (Musselshell River)" Salinity 1994 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 40.9 MILES MT40A002_080 "PAINTED ROBE CREEK, headwaters to mouth (Musselshell River)" "Nitrogen, Total" 1994 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 40.9 MILES MT40A002_080 "PAINTED ROBE CREEK, headwaters to mouth (Musselshell River)" Sulfate 2018 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 40.9 MILES MT40A002_090 "HALF BREED CREEK, headwaters to mouth (Musselshell River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 1992 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 18.2 MILES MT40A002_090 "HALF BREED CREEK, headwaters to mouth (Musselshell River)" Escherichia coli (E. Coli) 2018 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 18.2 MILES MT40A002_110 "MILLER CREEK, confluence of East and West Forks Miller Creek to mouth (Little Elk Creek)" Sediment 2018 B-1 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 12.0 MILES MT40A002_120 "AMERICAN FORK, confluence of Middle and North Forks American Fork to mouth (Musselshell River)" Escherichia coli (E. Coli) 2018 B-1 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 39.4 MILES MT40A002_130 "BIG COULEE CREEK, confluence of North and South Forks Big Coulee Creek to mouth (Musselshell River)" Escherichia coli (E. Coli) 2018 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 59.5 MILES MT40A002_130 "BIG COULEE CREEK, confluence of North and South Forks Big Coulee Creek to mouth (Musselshell River)" "Nitrogen, Total" 2018 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 59.5 MILES MT40A002_130 "BIG COULEE CREEK, confluence of North and South Forks Big Coulee Creek to mouth (Musselshell River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2018 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 59.5 MILES MT40A002_130 "BIG COULEE CREEK, confluence of North and South Forks Big Coulee Creek to mouth (Musselshell River)" Iron 2018 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 59.5 MILES MT40A002_130 "BIG COULEE CREEK, confluence of North and South Forks Big Coulee Creek to mouth (Musselshell River)" Selenium 2018 C-3 5 10040201 Upper Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 59.5 MILES MT40B001_021 "FLATWILLOW CREEK, headwaters to Highway 87 bridge" Sediment 2000 B-2 5 10040203 Flatwillow Musselshell Lower Missouri Flatwillow - Box Elder RIVER 40.1 MILES MT40B001_021 "FLATWILLOW CREEK, headwaters to Highway 87 bridge" Iron 2018 B-2 5 10040203 Flatwillow Musselshell Lower Missouri Flatwillow - Box Elder RIVER 40.1 MILES MT40B001_022 "FLATWILLOW CREEK, Highway 87 bridge to mouth (Musselshell River)" Iron 2018 C-3 5 10040203 Flatwillow Musselshell Lower Missouri Flatwillow - Box Elder RIVER 99.9 MILES MT40B001_022 "FLATWILLOW CREEK, Highway 87 bridge to mouth (Musselshell River)" Selenium 2018 C-3 5 10040203 Flatwillow Musselshell Lower Missouri Flatwillow - Box Elder RIVER 99.9 MILES MT40B001_040 "NORTH FORK FLATWILLOW CREEK, headwaters to confluence with South Fork" Sediment 2002 B-2 5 10040203 Flatwillow Musselshell Lower Missouri Flatwillow - Box Elder RIVER 27.6 MILES MT40B002_001 "BOX ELDER CREEK, headwaters to mouth" Iron 2018 C-3 5 10040204 Box Elder Musselshell Lower Missouri Flatwillow - Box Elder RIVER 139.2 MILES MT40B002_010 "McDONALD CREEK, North and South Forks to mouth (Box Elder Creek)" Iron 2018 C-3 5 10040204 Box Elder Musselshell Lower Missouri Flatwillow - Box Elder RIVER 89.2 MILES MT40B002_010 "McDONALD CREEK, North and South Forks to mouth (Box Elder Creek)" Salinity 2018 C-3 5 10040204 Box Elder Musselshell Lower Missouri Flatwillow - Box Elder RIVER 89.2 MILES MT40B002_010 "McDONALD CREEK, North and South Forks to mouth (Box Elder Creek)" Escherichia coli (E. Coli) 2018 C-3 5 10040204 Box Elder Musselshell Lower Missouri Flatwillow - Box Elder RIVER 89.2 MILES MT40B002_021 "FORDS CREEK, East Fork Fords Creek to mouth (Box Elder Creek)" Escherichia coli (E. Coli) 2018 C-3 5 10040204 Box Elder Musselshell Lower Missouri Flatwillow - Box Elder RIVER 69.8 MILES MT40B002_021 "FORDS CREEK, East Fork Fords Creek to mouth (Box Elder Creek)" Iron 2018 C-3 5 10040204 Box Elder Musselshell Lower Missouri Flatwillow - Box Elder RIVER 69.8 MILES MT40B002_070 "SOUTH FORK McDONALD CREEK, headwaters to confluence with North Fork McDonald Creek" Escherichia coli (E. Coli) 2018 C-3 5 10040204 Box Elder Musselshell Lower Missouri Flatwillow - Box Elder RIVER 50.3 MILES MT40B002_070 "SOUTH FORK McDONALD CREEK, headwaters to confluence with North Fork McDonald Creek" Iron 2018 C-3 5 10040204 Box Elder Musselshell Lower Missouri Flatwillow - Box Elder RIVER 50.3 MILES MT40C001_010 "MUSSELSHELL RIVER, HUC boundary near Roundup to Flatwillow Creek" Iron 2018 C-3 5 10040202 Middle Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 114.6 MILES MT40C002_010 "NORTH WILLOW CREEK, headwaters to mouth (Musselshell River)" Iron 2006 C-3 5 10040202 Middle Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 117.3 MILES MT40C002_010 "NORTH WILLOW CREEK, headwaters to mouth (Musselshell River)" Sedimentation/Siltation 1994 C-3 5 10040202 Middle Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 117.3 MILES MT40C002_010 "NORTH WILLOW CREEK, headwaters to mouth (Musselshell River)" Sulfate 2006 C-3 5 10040202 Middle Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 117.3 MILES MT40C002_010 "NORTH WILLOW CREEK, headwaters to mouth (Musselshell River)" "Phosphorus, Total" 2006 C-3 5 10040202 Middle Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 117.3 MILES MT40C002_010 "NORTH WILLOW CREEK, headwaters to mouth (Musselshell River)" "Nitrogen, Total" 2006 C-3 5 10040202 Middle Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 117.3 MILES MT40C002_010 "NORTH WILLOW CREEK, headwaters to mouth (Musselshell River)" Salinity 2018 C-3 5 10040202 Middle Musselshell Musselshell Lower Missouri Upper - Middle Musselshell RIVER 117.3 MILES MT40C003_010 "MUSSELSHELL RIVER, Flatwillow Creek to Fort Peck Reservoir" Iron 2018 C-3 5 10040205 Lower Musselshell Musselshell Lower Missouri Lower Musselshell RIVER 75.9 MILES MT40C003_010 "MUSSELSHELL RIVER, Flatwillow Creek to Fort Peck Reservoir" Escherichia coli (E. Coli) 2018 C-3 5 10040205 Lower Musselshell Musselshell Lower Missouri Lower Musselshell RIVER 75.9 MILES MT40D001_010 "BIG DRY CREEK, Steves Fork to mouth (Fort Peck Reservoir)" "Ammonia, Un-ionized" 2000 C-3 5 10040105 Big Dry Fort Peck Lake Lower Missouri Big and Little Dry RIVER 98.6 MILES MT40D001_010 "BIG DRY CREEK, Steves Fork to mouth (Fort Peck Reservoir)" "Phosphorus, Total" 1994 C-3 5 10040105 Big Dry Fort Peck Lake Lower Missouri Big and Little Dry RIVER 98.6 MILES MT40D001_010 "BIG DRY CREEK, Steves Fork to mouth (Fort Peck Reservoir)" "Nitrogen, Total" 1994 C-3 5 10040105 Big Dry Fort Peck Lake Lower Missouri Big and Little Dry RIVER 98.6 MILES MT40D001_010 "BIG DRY CREEK, Steves Fork to mouth (Fort Peck Reservoir)" Nitrate/Nitrite (Nitrite + Nitrate as N) 1994 C-3 5 10040105 Big Dry Fort Peck Lake Lower Missouri Big and Little Dry RIVER 98.6 MILES MT40E001_010 "MISSOURI RIVER, Bullwhacker Creek to Fort Peck Reservoir" Arsenic 1990 B-3 5 10040104 Fort Peck Reservoir Fort Peck Lake Lower Missouri Missouri River RIVER 49.0 MILES MT40E001_010 "MISSOURI RIVER, Bullwhacker Creek to Fort Peck Reservoir" Copper 2000 B-3 5 10040104 Fort Peck Reservoir Fort Peck Lake Lower Missouri Missouri River RIVER 49.0 MILES MT40E002_070 "RUBY GULCH, headwaters to confluence of Alder Gulch, T25N R25E S21" Arsenic 2014 C-3 5 10040104 Fort Peck Reservoir Fort Peck Lake Lower Missouri Landusky RIVER 2.9 MILES MT40E002_090 "ROCK CREEK, headwaters to mouth (Missouri River)" Escherichia coli (E. Coli) 2000 C-3 5 10040104 Fort Peck Reservoir Fort Peck Lake Lower Missouri Landusky RIVER 39.2 MILES MT40E002_100 "MILL GULCH, headwaters to mouth (Rock Creek)" Arsenic 2014 C-3 5 10040104 Fort Peck Reservoir Fort Peck Lake Lower Missouri Landusky RIVER 1.7 MILES MT40E002_100 "MILL GULCH, headwaters to mouth (Rock Creek)" Cadmium 2014 C-3 5 10040104 Fort Peck Reservoir Fort Peck Lake Lower Missouri Landusky RIVER 1.7 MILES MT40E002_100 "MILL GULCH, headwaters to mouth (Rock Creek)" Zinc 2014 C-3 5 10040104 Fort Peck Reservoir Fort Peck Lake Lower Missouri Landusky RIVER 1.7 MILES MT40E002_100 "MILL GULCH, headwaters to mouth (Rock Creek)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2014 C-3 5 10040104 Fort Peck Reservoir Fort Peck Lake Lower Missouri Landusky RIVER 1.7 MILES MT40E002_110 "SULLIVAN CREEK, headwaters to mouth (Rock Creek)" Nickel 2014 C-3 5 10040104 Fort Peck Reservoir Fort Peck Lake Lower Missouri Landusky RIVER 0.9 MILES MT40E003_020 "NELSON CREEK, headwaters to mouth (Big Dry Creek arm of Fort Peck Res)" Cadmium 2006 C-3 5 10040104 Fort Peck Reservoir Fort Peck Lake Lower Missouri Redwater RIVER 36.4 MILES MT40E003_020 "NELSON CREEK, headwaters to mouth (Big Dry Creek arm of Fort Peck Res)" Copper 2006 C-3 5 10040104 Fort Peck Reservoir Fort Peck Lake Lower Missouri Redwater RIVER 36.4 MILES MT40E004_010 FORT PECK RESERVOIR Lead 2000 B-3 5 10040104 Fort Peck Reservoir Fort Peck Lake Lower Missouri Missouri River FRESHWATER LAKE " 233,295.8 " ACRES MT40E004_010 FORT PECK RESERVOIR Mercury 2000 B-3 5 10040104 Fort Peck Reservoir Fort Peck Lake Lower Missouri Missouri River FRESHWATER LAKE " 233,295.8 " ACRES MT40F003_010 "MILK RIVER, Canada border to Fresno Reservoir" Copper 2006 B-3 5 10050002 Upper Milk Milk Lower Missouri Upper Milk RIVER 39.7 MILES MT40F003_010 "MILK RIVER, Canada border to Fresno Reservoir" Iron 2006 B-3 5 10050002 Upper Milk Milk Lower Missouri Upper Milk RIVER 39.7 MILES MT40F003_010 "MILK RIVER, Canada border to Fresno Reservoir" Lead 2006 B-3 5 10050002 Upper Milk Milk Lower Missouri Upper Milk RIVER 39.7 MILES MT40H001_010 "BIG SANDY CREEK, Lonesome Lake Coulee to mouth (Milk River)" Mercury 2002 B-3 5 10050005 Big Sandy Milk Lower Missouri Big Sandy - Sage RIVER 62.9 MILES MT40I001_020 "PEOPLES CREEK, headwaters to Fort Belknap Reservation boundary" Mercury 2006 B-1 5 10050009 Peoples Milk Lower Missouri Middle Milk and Tributaries RIVER 57.2 MILES MT40I001_020 "PEOPLES CREEK, headwaters to Fort Belknap Reservation boundary" Temperature 1988 B-1 5 10050009 Peoples Milk Lower Missouri Middle Milk and Tributaries RIVER 57.2 MILES MT40I001_020 "PEOPLES CREEK, headwaters to Fort Belknap Reservation boundary" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-1 5 10050009 Peoples Milk Lower Missouri Middle Milk and Tributaries RIVER 57.2 MILES MT40I001_020 "PEOPLES CREEK, headwaters to Fort Belknap Reservation boundary" "Phosphorus, Total" 2006 B-1 5 10050009 Peoples Milk Lower Missouri Middle Milk and Tributaries RIVER 57.2 MILES MT40I001_040 "KING CREEK, headwaters to Fort Belknap Reservation boundary" Lead 2014 B-1 5 10050009 Peoples Milk Lower Missouri Landusky RIVER 0.9 MILES MT40J001_011 "MILK RIVER, Fresno Dam to Thirtymile Creek" Mercury 2000 B-3 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 113.3 MILES MT40J001_012 "MILK RIVER, Thirtymile Creek to Dodson Creek" Mercury 2000 B-3 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 58.2 MILES MT40J001_013 "MILK RIVER, Dodson Creek to Whitewater Creek" Mercury 2000 B-3 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 102.8 MILES MT40J001_020 "MILK RIVER, Whitewater Creek to Beaver Creek" Iron 2000 B-3 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 38.2 MILES MT40J001_020 "MILK RIVER, Whitewater Creek to Beaver Creek" Nitrate/Nitrite (Nitrite + Nitrate as N) 1990 B-3 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 38.2 MILES MT40J002_010 "BEAVER CREEK, Beaver Creek Reservoir to mouth (Milk River)" Iron 2006 B-1 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 24.9 MILES MT40J002_010 "BEAVER CREEK, Beaver Creek Reservoir to mouth (Milk River)" Lead 2006 B-1 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 24.9 MILES MT40J002_010 "BEAVER CREEK, Beaver Creek Reservoir to mouth (Milk River)" Mercury 2006 B-1 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 24.9 MILES MT40J002_010 "BEAVER CREEK, Beaver Creek Reservoir to mouth (Milk River)" Sedimentation/Siltation 1988 B-1 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 24.9 MILES MT40J002_010 "BEAVER CREEK, Beaver Creek Reservoir to mouth (Milk River)" Temperature 1988 B-1 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 24.9 MILES MT40J002_020 "BULLHOOK CREEK, headwaters to the Bullhook Dam, T32N R16E S16" Sedimentation/Siltation 1988 B-3 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 24.9 MILES MT40J002_020 "BULLHOOK CREEK, headwaters to the Bullhook Dam, T32N R16E S16" Temperature 1988 B-3 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 24.9 MILES MT40J002_020 "BULLHOOK CREEK, headwaters to the Bullhook Dam, T32N R16E S16" Nitrate/Nitrite (Nitrite + Nitrate as N) 1988 B-3 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 24.9 MILES MT40J002_030 "LITTLE BOXELDER CREEK, headwaters to mouth (Milk River)" Sedimentation/Siltation 1988 B-1 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 50.2 MILES MT40J002_030 "LITTLE BOXELDER CREEK, headwaters to mouth (Milk River)" Temperature 1988 B-1 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 50.2 MILES MT40J002_030 "LITTLE BOXELDER CREEK, headwaters to mouth (Milk River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 1988 B-1 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 50.2 MILES MT40J002_030 "LITTLE BOXELDER CREEK, headwaters to mouth (Milk River)" "Phosphorus, Total" 1988 B-1 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 50.2 MILES MT40J002_030 "LITTLE BOXELDER CREEK, headwaters to mouth (Milk River)" "Nitrogen, Total" 1988 B-1 5 10050004 Middle Milk Milk Lower Missouri Middle Milk and Tributaries RIVER 50.2 MILES MT40J003_010 "LODGE CREEK, Canadian border to mouth (Milk River)" Mercury 2006 B-3 5 10050007 Lodge Milk Lower Missouri Middle Milk and Tributaries RIVER 83.1 MILES MT40J003_010 "LODGE CREEK, Canadian border to mouth (Milk River)" Dissolved Oxygen 1992 B-3 5 10050007 Lodge Milk Lower Missouri Middle Milk and Tributaries RIVER 83.1 MILES MT40J003_010 "LODGE CREEK, Canadian border to mouth (Milk River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 1992 B-3 5 10050007 Lodge Milk Lower Missouri Middle Milk and Tributaries RIVER 83.1 MILES MT40J003_010 "LODGE CREEK, Canadian border to mouth (Milk River)" "Phosphorus, Total" 1992 B-3 5 10050007 Lodge Milk Lower Missouri Middle Milk and Tributaries RIVER 83.1 MILES MT40J003_010 "LODGE CREEK, Canadian border to mouth (Milk River)" "Nitrogen, Total" 1992 B-3 5 10050007 Lodge Milk Lower Missouri Middle Milk and Tributaries RIVER 83.1 MILES MT40J004_010 "BATTLE CREEK, Canadian border to mouth (Milk River)" Sedimentation/Siltation 2000 B-3 5 10050008 Battle Milk Lower Missouri Middle Milk and Tributaries RIVER 74.3 MILES MT40J005_020 "COTTONWOOD CREEK, Black Coulee to mouth (Milk River)" Iron 2006 B-3 5 10050010 Cottonwood Milk Lower Missouri Middle Milk and Tributaries RIVER 57.4 MILES MT40J005_020 "COTTONWOOD CREEK, Black Coulee to mouth (Milk River)" Sedimentation/Siltation 1990 B-3 5 10050010 Cottonwood Milk Lower Missouri Middle Milk and Tributaries RIVER 57.4 MILES MT40K001_010 "WHITEWATER CREEK, Canadian border to mouth (Milk River)" Mercury 2006 B-3 5 10050011 Whitewater Milk Lower Missouri Middle Milk and Tributaries RIVER 67.6 MILES MT40M001_013 "BEAVER CREEK, Fort Belknap Reservation boundary to Big Warm Creek" Mercury 2006 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 55.1 MILES MT40M001_013 "BEAVER CREEK, Fort Belknap Reservation boundary to Big Warm Creek" "Phosphorus, Total" 2006 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 55.1 MILES MT40M001_014 "BEAVER CREEK, Big Warm Creek to Un-Named tributary, T30N R32E S32" Mercury 2006 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 98.0 MILES MT40M001_014 "BEAVER CREEK, Big Warm Creek to Un-Named tributary, T30N R32E S32" "Phosphorus, Total" 2006 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 98.0 MILES MT40M001_020 "BEAVER CREEK, Un-named tributary at T30N R32E S32 to mouth (Milk River)" Uranium 2000 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 86.9 MILES MT40M001_020 "BEAVER CREEK, Un-named tributary at T30N R32E S32 to mouth (Milk River)" "Nitrogen, Total" 1990 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 86.9 MILES MT40M001_020 "BEAVER CREEK, Un-named tributary at T30N R32E S32 to mouth (Milk River)" "Phosphorus, Total" 1990 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 86.9 MILES MT40M002_010 "FLAT CREEK, headwaters to mouth (Beaver Creek), T27N R32E S35" Arsenic 2006 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 36.9 MILES MT40M002_010 "FLAT CREEK, headwaters to mouth (Beaver Creek), T27N R32E S35" Cadmium 2006 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 36.9 MILES MT40M002_010 "FLAT CREEK, headwaters to mouth (Beaver Creek), T27N R32E S35" Copper 2006 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 36.9 MILES MT40M002_010 "FLAT CREEK, headwaters to mouth (Beaver Creek), T27N R32E S35" Iron 2006 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 36.9 MILES MT40M002_010 "FLAT CREEK, headwaters to mouth (Beaver Creek), T27N R32E S35" Lead 2006 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 36.9 MILES MT40M002_010 "FLAT CREEK, headwaters to mouth (Beaver Creek), T27N R32E S35" Dissolved Oxygen 2006 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 36.9 MILES MT40M002_010 "FLAT CREEK, headwaters to mouth (Beaver Creek), T27N R32E S35" Sediment 1996 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 36.9 MILES MT40M002_010 "FLAT CREEK, headwaters to mouth (Beaver Creek), T27N R32E S35" Zinc 2006 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 36.9 MILES MT40M002_010 "FLAT CREEK, headwaters to mouth (Beaver Creek), T27N R32E S35" Nitrate/Nitrite (Nitrite + Nitrate as N) 1996 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 36.9 MILES MT40M002_010 "FLAT CREEK, headwaters to mouth (Beaver Creek), T27N R32E S35" "Phosphorus, Total" 1996 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 36.9 MILES MT40M002_010 "FLAT CREEK, headwaters to mouth (Beaver Creek), T27N R32E S35" "Nitrogen, Total" 1996 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 36.9 MILES MT40M002_020 "LARB CREEK, headwaters to mouth (Beaver Creek)" Copper 2006 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 76.7 MILES MT40M002_020 "LARB CREEK, headwaters to mouth (Beaver Creek)" Lead 2006 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 76.7 MILES MT40M002_020 "LARB CREEK, headwaters to mouth (Beaver Creek)" Dissolved Oxygen 2006 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 76.7 MILES MT40M002_020 "LARB CREEK, headwaters to mouth (Beaver Creek)" "Phosphorus, Total" 2006 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 76.7 MILES MT40M002_020 "LARB CREEK, headwaters to mouth (Beaver Creek)" "Nitrogen, Total" 2006 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 76.7 MILES MT40M002_030 "BIG WARM CREEK, Fort Belknap Reservation boundary to mouth (Beaver Creek)" Salinity 2000 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 57.1 MILES MT40M002_030 "BIG WARM CREEK, Fort Belknap Reservation boundary to mouth (Beaver Creek)" Sedimentation/Siltation 2000 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 57.1 MILES MT40M002_030 "BIG WARM CREEK, Fort Belknap Reservation boundary to mouth (Beaver Creek)" "Phosphorus, Total" 1996 B-3 5 10050014 Beaver Milk Lower Missouri Beaver RIVER 57.1 MILES MT40M003_010 LAKE BOWDOIN Salinity 1990 B-3 5 10050014 Beaver Milk Lower Missouri Beaver FRESHWATER LAKE " 3,932.2 " ACRES MT40M003_010 LAKE BOWDOIN Selenium 2000 B-3 5 10050014 Beaver Milk Lower Missouri Beaver FRESHWATER LAKE " 3,932.2 " ACRES MT40M003_020 NELSON RESERVOIR "Phosphorus, Total" 1990 B-3 5 10050014 Beaver Milk Lower Missouri Beaver FRESHWATER LAKE " 4,112.5 " ACRES MT40O001_010 "MILK RIVER, Beaver Creek to mouth (Missouri River)" Lead 2000 B-3 5 10050012 Lower Milk Milk Lower Missouri Lower Milk RIVER 134.5 MILES MT40O001_010 "MILK RIVER, Beaver Creek to mouth (Missouri River)" Mercury 2000 B-3 5 10050012 Lower Milk Milk Lower Missouri Lower Milk RIVER 134.5 MILES MT40O001_010 "MILK RIVER, Beaver Creek to mouth (Missouri River)" Escherichia coli (E. Coli) 2000 B-3 5 10050012 Lower Milk Milk Lower Missouri Lower Milk RIVER 134.5 MILES MT40O002_020 "BUGGY CREEK, headwaters to mouth (Milk River)" Iron 2006 B-3 5 10050012 Lower Milk Milk Lower Missouri Lower Milk RIVER 46.5 MILES MT40O002_031 "WILLOW CREEK, headwaters to Halfpint Reservoir, T25N R35E S26" Sedimentation/Siltation 1992 B-3 5 10050012 Lower Milk Milk Lower Missouri Lower Milk RIVER 10.4 MILES MT40O002_033 "WILLOW CREEK, Halfpint Reservoir to mouth (Milk River), T28N R40E S29" Sedimentation/Siltation 1992 B-3 5 10050012 Lower Milk Milk Lower Missouri Lower Milk RIVER 76.1 MILES MT40O002_040 "BEAVER CREEK, confluence of Little Beaver Creek and South Fork Beaver Creek to mouth (Willow Creek)" Sediment 1996 B-3 5 10050012 Lower Milk Milk Lower Missouri Lower Milk RIVER 16.5 MILES MT40O002_040 "BEAVER CREEK, confluence of Little Beaver Creek and South Fork Beaver Creek to mouth (Willow Creek)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-3 5 10050012 Lower Milk Milk Lower Missouri Lower Milk RIVER 16.5 MILES MT40O003_010 "PORCUPINE CREEK, confluence of West and Middle Forks to mouth (Milk River)" Salinity 2000 B-3 5 10050016 Porcupine Milk Lower Missouri Lower Milk RIVER 49.3 MILES MT40O003_010 "PORCUPINE CREEK, confluence of West and Middle Forks to mouth (Milk River)" "Nitrogen, Total" 1996 B-3 5 10050016 Porcupine Milk Lower Missouri Lower Milk RIVER 49.3 MILES MT40O003_010 "PORCUPINE CREEK, confluence of West and Middle Forks to mouth (Milk River)" "Phosphorus, Total" 1996 B-3 5 10050016 Porcupine Milk Lower Missouri Lower Milk RIVER 49.3 MILES MT40P002_010 "EAST REDWATER CREEK, headwaters to mouth (Redwater River)" Sedimentation/Siltation 1992 C-3 5 10060002 Redwater Missouri-Poplar Lower Missouri Redwater RIVER 50.6 MILES MT40Q001_011 "POPLAR RIVER, Confluence of East & Middle Forks to Fort Peck Reservation boundary, T33N R48E S12" Escherichia coli (E. Coli) 1990 B-2 5 10060003 Poplar Missouri-Poplar Lower Missouri Lower Missouri RIVER 29.9 MILES MT40Q001_011 "POPLAR RIVER, Confluence of East & Middle Forks to Fort Peck Reservation boundary, T33N R48E S12" Sedimentation/Siltation 1990 B-2 5 10060003 Poplar Missouri-Poplar Lower Missouri Lower Missouri RIVER 29.9 MILES MT40Q001_011 "POPLAR RIVER, Confluence of East & Middle Forks to Fort Peck Reservation boundary, T33N R48E S12" Temperature 1990 B-2 5 10060003 Poplar Missouri-Poplar Lower Missouri Lower Missouri RIVER 29.9 MILES MT40Q001_012 "MIDDLE FORK POPLAR RIVER, headwater (confluence of Lost Child & Goose Creeks) to the mouth (Poplar River)" Escherichia coli (E. Coli) 1990 B-2 5 10060003 Poplar Missouri-Poplar Lower Missouri Lower Missouri RIVER 36.5 MILES MT40Q001_012 "MIDDLE FORK POPLAR RIVER, headwater (confluence of Lost Child & Goose Creeks) to the mouth (Poplar River)" Sedimentation/Siltation 1990 B-2 5 10060003 Poplar Missouri-Poplar Lower Missouri Lower Missouri RIVER 36.5 MILES MT40Q001_012 "MIDDLE FORK POPLAR RIVER, headwater (confluence of Lost Child & Goose Creeks) to the mouth (Poplar River)" Temperature 1990 B-2 5 10060003 Poplar Missouri-Poplar Lower Missouri Lower Missouri RIVER 36.5 MILES MT40Q002_010 "BUTTE CREEK, headwaters to mouth (Poplar River)" Iron 2006 B-2 5 10060003 Poplar Missouri-Poplar Lower Missouri Lower Missouri RIVER 42.0 MILES MT40Q002_010 "BUTTE CREEK, headwaters to mouth (Poplar River)" Sodium 1988 B-2 5 10060003 Poplar Missouri-Poplar Lower Missouri Lower Missouri RIVER 42.0 MILES MT40Q002_010 "BUTTE CREEK, headwaters to mouth (Poplar River)" Specific Conductivity 1990 B-2 5 10060003 Poplar Missouri-Poplar Lower Missouri Lower Missouri RIVER 42.0 MILES MT40Q002_010 "BUTTE CREEK, headwaters to mouth (Poplar River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-2 5 10060003 Poplar Missouri-Poplar Lower Missouri Lower Missouri RIVER 42.0 MILES MT40Q002_010 "BUTTE CREEK, headwaters to mouth (Poplar River)" "Phosphorus, Total" 2006 B-2 5 10060003 Poplar Missouri-Poplar Lower Missouri Lower Missouri RIVER 42.0 MILES MT40Q002_010 "BUTTE CREEK, headwaters to mouth (Poplar River)" "Nitrogen, Total" 2006 B-2 5 10060003 Poplar Missouri-Poplar Lower Missouri Lower Missouri RIVER 42.0 MILES MT40Q002_020 "EAST FORK POPLAR RIVER, Canada border to mouth (Poplar River)" Iron 1990 B-2 5 10060003 Poplar Missouri-Poplar Lower Missouri Lower Missouri RIVER 21.6 MILES MT40R001_010 "BIG MUDDY CREEK, north corner of Fort Peck Reservation boundary to mouth (Missouri River)" Sedimentation/Siltation 1990 C-3 5 10060006 Big Muddy Missouri-Poplar Lower Missouri Lower Missouri RIVER 82.1 MILES MT40R001_010 "BIG MUDDY CREEK, north corner of Fort Peck Reservation boundary to mouth (Missouri River)" "Nitrogen, Total" 1990 C-3 5 10060006 Big Muddy Missouri-Poplar Lower Missouri Lower Missouri RIVER 82.1 MILES MT40R001_010 "BIG MUDDY CREEK, north corner of Fort Peck Reservation boundary to mouth (Missouri River)" "Phosphorus, Total" 1990 C-3 5 10060006 Big Muddy Missouri-Poplar Lower Missouri Lower Missouri RIVER 82.1 MILES MT40R001_020 "BIG MUDDY CREEK, Canadian border to northern boundary of Fort Peck Reservation" Copper 2002 C-3 5 10060006 Big Muddy Missouri-Poplar Lower Missouri Lower Missouri RIVER 119.5 MILES MT40R001_020 "BIG MUDDY CREEK, Canadian border to northern boundary of Fort Peck Reservation" Lead 2002 C-3 5 10060006 Big Muddy Missouri-Poplar Lower Missouri Lower Missouri RIVER 119.5 MILES MT40R001_020 "BIG MUDDY CREEK, Canadian border to northern boundary of Fort Peck Reservation" Mercury 2002 C-3 5 10060006 Big Muddy Missouri-Poplar Lower Missouri Lower Missouri RIVER 119.5 MILES MT40R001_020 "BIG MUDDY CREEK, Canadian border to northern boundary of Fort Peck Reservation" Zinc 2002 C-3 5 10060006 Big Muddy Missouri-Poplar Lower Missouri Lower Missouri RIVER 119.5 MILES MT40R001_020 "BIG MUDDY CREEK, Canadian border to northern boundary of Fort Peck Reservation" Organic Enrichment 2000 C-3 5 10060006 Big Muddy Missouri-Poplar Lower Missouri Lower Missouri RIVER 119.5 MILES MT40R001_020 "BIG MUDDY CREEK, Canadian border to northern boundary of Fort Peck Reservation" "Phosphorus, Total" 1996 C-3 5 10060006 Big Muddy Missouri-Poplar Lower Missouri Lower Missouri RIVER 119.5 MILES MT40R001_020 "BIG MUDDY CREEK, Canadian border to northern boundary of Fort Peck Reservation" "Nitrogen, Total" 1996 C-3 5 10060006 Big Muddy Missouri-Poplar Lower Missouri Lower Missouri RIVER 119.5 MILES MT40R003_010 MEDICINE LAKE Cadmium 2006 C-3 5 10060006 Big Muddy Missouri-Poplar Lower Missouri Lower Missouri FRESHWATER LAKE " 9,726.1 " ACRES MT40R003_010 MEDICINE LAKE Lead 2006 C-3 5 10060006 Big Muddy Missouri-Poplar Lower Missouri Lower Missouri FRESHWATER LAKE " 9,726.1 " ACRES MT40R003_010 MEDICINE LAKE Mercury 2006 C-3 5 10060006 Big Muddy Missouri-Poplar Lower Missouri Lower Missouri FRESHWATER LAKE " 9,726.1 " ACRES MT40S001_011 "MISSOURI RIVER, Fort Peck Dam to Milk River" Temperature 2002 B-2 5 10060001 Prairie Elk-Wolf Missouri-Poplar Lower Missouri Lower Missouri RIVER 9.8 MILES MT40S001_012 "MISSOURI RIVER, Milk River to Poplar River" Temperature 2002 B-3 5 10060001 Prairie Elk-Wolf Missouri-Poplar Lower Missouri Lower Missouri RIVER 81.9 MILES MT40S002_030 "SAND CREEK, confluence of East and West Forks to mouth (Missouri River)" Sedimentation/Siltation 1990 C-3 5 10060001 Prairie Elk-Wolf Missouri-Poplar Lower Missouri Redwater RIVER 19.8 MILES MT40S003_010 "MISSOURI RIVER, Poplar River to North Dakota border" Temperature 2000 B-3 5 10060005 Charlie-Little Muddy Missouri-Poplar Lower Missouri Lower Missouri RIVER 92.0 MILES MT40S004_010 "CHARLIE CREEK, East and Middle Charlie Creek to mouth (Missouri River)" Iron 2006 C-3 5 10060005 Charlie-Little Muddy Missouri-Poplar Lower Missouri Lower Missouri RIVER 32.9 MILES MT40S004_010 "CHARLIE CREEK, East and Middle Charlie Creek to mouth (Missouri River)" Specific Conductivity 1988 C-3 5 10060005 Charlie-Little Muddy Missouri-Poplar Lower Missouri Lower Missouri RIVER 32.9 MILES MT40S004_010 "CHARLIE CREEK, East and Middle Charlie Creek to mouth (Missouri River)" "Nitrogen, Total" 2006 C-3 5 10060005 Charlie-Little Muddy Missouri-Poplar Lower Missouri Lower Missouri RIVER 32.9 MILES MT40S004_020 "HARDSCRABBLE CREEK, headwaters to mouth (Missouri River)" Specific Conductivity 1992 C-3 5 10060005 Charlie-Little Muddy Missouri-Poplar Lower Missouri Lower Missouri RIVER 35.9 MILES MT40S004_020 "HARDSCRABBLE CREEK, headwaters to mouth (Missouri River)" Total Dissolved Solids (TDS) 1992 C-3 5 10060005 Charlie-Little Muddy Missouri-Poplar Lower Missouri Lower Missouri RIVER 35.9 MILES MT40S004_020 "HARDSCRABBLE CREEK, headwaters to mouth (Missouri River)" "Nitrogen, Total" 2006 C-3 5 10060005 Charlie-Little Muddy Missouri-Poplar Lower Missouri Lower Missouri RIVER 35.9 MILES MT41A001_010 "RED ROCK RIVER, Lima Dam to Clark Canyon Reservoir" Lead 2000 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 51.8 MILES MT41A001_010 "RED ROCK RIVER, Lima Dam to Clark Canyon Reservoir" Sedimentation/Siltation 1990 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 51.8 MILES MT41A001_010 "RED ROCK RIVER, Lima Dam to Clark Canyon Reservoir" Temperature 2006 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 51.8 MILES MT41A001_010 "RED ROCK RIVER, Lima Dam to Clark Canyon Reservoir" Zinc 2000 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 51.8 MILES MT41A001_020 "RED ROCK RIVER, Lower Red Rock Lake to Lima Dam" Sedimentation/Siltation 1990 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 43.8 MILES MT41A001_020 "RED ROCK RIVER, Lower Red Rock Lake to Lima Dam" Temperature 1992 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 43.8 MILES MT41A001_020 "RED ROCK RIVER, Lower Red Rock Lake to Lima Dam" "Phosphorus, Total" 2006 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 43.8 MILES MT41A001_020 "RED ROCK RIVER, Lower Red Rock Lake to Lima Dam" "Nitrogen, Total" 2006 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 43.8 MILES MT41A003_010 "MEDICINE LODGE CREEK, headwaters to mouth (Horse Prairie Creek)" Sedimentation/Siltation 2006 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 34.6 MILES MT41A003_010 "MEDICINE LODGE CREEK, headwaters to mouth (Horse Prairie Creek)" Temperature 2006 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 34.6 MILES MT41A003_010 "MEDICINE LODGE CREEK, headwaters to mouth (Horse Prairie Creek)" "Phosphorus, Total" 2006 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 34.6 MILES MT41A003_020 "MUDDY CREEK, confluence of Sourdough and Wilson Creek to mouth (Big Sheep Creek), T14S R10W S10" Turbidity 2000 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 11.1 MILES MT41A003_090 "HORSE PRAIRIE CREEK, headwaters to mouth (Clark Canyon Res)" Arsenic 2000 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 46.7 MILES MT41A003_090 "HORSE PRAIRIE CREEK, headwaters to mouth (Clark Canyon Res)" Cadmium 2000 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 46.7 MILES MT41A003_090 "HORSE PRAIRIE CREEK, headwaters to mouth (Clark Canyon Res)" Copper 2000 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 46.7 MILES MT41A003_090 "HORSE PRAIRIE CREEK, headwaters to mouth (Clark Canyon Res)" Lead 2000 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 46.7 MILES MT41A003_090 "HORSE PRAIRIE CREEK, headwaters to mouth (Clark Canyon Res)" Mercury 2000 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 46.7 MILES MT41A003_090 "HORSE PRAIRIE CREEK, headwaters to mouth (Clark Canyon Res)" Zinc 2000 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 46.7 MILES MT41A003_100 "BLOODY DICK CREEK, headwaters to mouth (Horse Prairie Creek)" "Phosphorus, Total" 2006 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 30.3 MILES MT41A003_100 "BLOODY DICK CREEK, headwaters to mouth (Horse Prairie Creek)" "Nitrogen, Total" 2006 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 30.3 MILES MT41A003_150 "SHEEP CREEK, Muddy Creek to mouth (Red Rock River)" Sedimentation/Siltation 2006 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 11.0 MILES MT41A004_010 "PRICE CREEK, headwaters to mouth (Red Rock River)" Sedimentation/Siltation 1990 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 10.5 MILES MT41A004_030 "FISH CREEK, headwaters to mouth (Metzel Creek)" Sedimentation/Siltation 1990 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 7.9 MILES MT41A004_040 "CORRAL CREEK, headwaters to mouth (Red Rock Creek)" Sedimentation/Siltation 1990 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 4.3 MILES MT41A004_040 "CORRAL CREEK, headwaters to mouth (Red Rock Creek)" "Phosphorus, Total" 2006 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 4.3 MILES MT41A004_050 "EAST FORK CLOVER CREEK, headwaters to mouth (Clover Creek)" Sedimentation/Siltation 1992 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 5.8 MILES MT41A004_050 "EAST FORK CLOVER CREEK, headwaters to mouth (Clover Creek)" "Phosphorus, Total" 2006 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 5.8 MILES MT41A004_070 "LONG CREEK, headwaters to mouth (Red Rock River)" Sedimentation/Siltation 1990 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 23.9 MILES MT41A004_080 "O'DELL CREEK, headwaters to mouth (Lower Red Rock Lake)" Turbidity 2000 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 16.1 MILES MT41A004_090 "PEET CREEK, headwaters to mouth (Red Rock River)" Sedimentation/Siltation 1990 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 10.1 MILES MT41A004_090 "PEET CREEK, headwaters to mouth (Red Rock River)" "Phosphorus, Total" 2006 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 10.1 MILES MT41A004_090 "PEET CREEK, headwaters to mouth (Red Rock River)" "Nitrogen, Total" 2006 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 10.1 MILES MT41A004_100 "TOM CREEK, headwaters to mouth (Upper Red Rock Lake)" Sedimentation/Siltation 1990 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 6.6 MILES MT41A004_110 "RED ROCK CREEK, headwaters to mouth (Upper Red Rock Lake)" Turbidity 2000 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 18.4 MILES MT41A004_130 "JONES CREEK, headwaters to mouth (Winslow Creek)" Sedimentation/Siltation 1990 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 8.3 MILES MT41A004_130 "JONES CREEK, headwaters to mouth (Winslow Creek)" "Phosphorus, Total" 2006 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 8.3 MILES MT41A004_140 "BEAN CREEK, headwaters to mouth (Red Rock River), T14S R3E S7" Sedimentation/Siltation 1996 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock RIVER 6.6 MILES MT41A005_020 LOWER RED ROCK LAKE Sedimentation/Siltation 2000 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock FRESHWATER LAKE " 2,217.5 " ACRES MT41A005_030 UPPER RED ROCK LAKE Sedimentation/Siltation 1990 B-1 5 10020001 Red Rock Missouri Headwaters Upper Missouri Red Rock FRESHWATER LAKE " 2,947.0 " ACRES MT41B001_010 "BEAVERHEAD RIVER, Clark Canyon Dam to Grasshopper Creek" "Phosphorus, Total" 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 12.3 MILES MT41B001_010 "BEAVERHEAD RIVER, Clark Canyon Dam to Grasshopper Creek" "Nitrogen, Total" 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 12.3 MILES MT41B001_020 "BEAVERHEAD RIVER, Grasshopper Creek to mouth (Jefferson River)" "Phosphorus, Total" 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 66.0 MILES MT41B001_020 "BEAVERHEAD RIVER, Grasshopper Creek to mouth (Jefferson River)" "Nitrogen, Total" 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 66.0 MILES MT41B002_010 "GRASSHOPPER CREEK, headwaters to mouth (Beaverhead River)" "Nitrogen, Total" 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 60.2 MILES MT41B002_010 "GRASSHOPPER CREEK, headwaters to mouth (Beaverhead River)" "Phosphorus, Total" 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 60.2 MILES MT41B002_010 "GRASSHOPPER CREEK, headwaters to mouth (Beaverhead River)" Lead 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 60.2 MILES MT41B002_030 "BLACKTAIL DEER CREEK, headwaters to mouth (Beaverhead River)" Temperature 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 42.9 MILES MT41B002_030 "BLACKTAIL DEER CREEK, headwaters to mouth (Beaverhead River)" "Nitrogen, Total" 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 42.9 MILES MT41B002_060 "WEST FORK BLACKTAIL DEER CREEK, headwaters to mouth (Blacktail Deer Creek)" Arsenic 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 19.1 MILES MT41B002_070 "WEST FORK DYCE CREEK, headwaters to mouth (Dyce Creek)" "Nitrogen, Total" 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 4.0 MILES MT41B002_080 "SPRING CREEK, headwaters to mouth (Beaverhead River)" "Nitrogen, Total" 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 15.7 MILES MT41B002_080 "SPRING CREEK, headwaters to mouth (Beaverhead River)" "Phosphorus, Total" 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 15.7 MILES MT41B002_080 "SPRING CREEK, headwaters to mouth (Beaverhead River)" Iron 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 15.7 MILES MT41B002_090 "RATTLESNAKE CREEK, from the Dillon PWS off-channel well T7S R10W S11 to the mouth (Van Camp Slough)" Cadmium 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 9.5 MILES MT41B002_090 "RATTLESNAKE CREEK, from the Dillon PWS off-channel well T7S R10W S11 to the mouth (Van Camp Slough)" Copper 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 9.5 MILES MT41B002_090 "RATTLESNAKE CREEK, from the Dillon PWS off-channel well T7S R10W S11 to the mouth (Van Camp Slough)" Lead 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 9.5 MILES MT41B002_090 "RATTLESNAKE CREEK, from the Dillon PWS off-channel well T7S R10W S11 to the mouth (Van Camp Slough)" "Nitrogen, Total" 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 9.5 MILES MT41B002_090 "RATTLESNAKE CREEK, from the Dillon PWS off-channel well T7S R10W S11 to the mouth (Van Camp Slough)" "Phosphorus, Total" 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 9.5 MILES MT41B002_091 "RATTLESNAKE CREEK, headwaters to Dillon PWS off-channel well, T7S R10W S11" Cadmium 2006 A-1 5 10020002 Beaverhead Missouri Headwaters Lower Missouri Beaverhead RIVER 18.0 MILES MT41B002_091 "RATTLESNAKE CREEK, headwaters to Dillon PWS off-channel well, T7S R10W S11" Lead 2006 A-1 5 10020002 Beaverhead Missouri Headwaters Lower Missouri Beaverhead RIVER 18.0 MILES MT41B002_110 "CLARK CANYON CREEK, headwaters to mouth (Beaverhead River), T9S R10W S28" "Phosphorus, Total" 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 8.1 MILES MT41B002_120 "RESERVOIR CREEK, headwaters to mouth (Grasshopper Creek)" "Phosphorus, Total" 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 12.8 MILES MT41B002_120 "RESERVOIR CREEK, headwaters to mouth (Grasshopper Creek)" "Nitrogen, Total" 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 12.8 MILES MT41B002_131 "STONE CREEK, Un-named tributary at T6S R7W S34 to Staudaher Bishop Ditch" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 6.5 MILES MT41B002_131 "STONE CREEK, Un-named tributary at T6S R7W S34 to Staudaher Bishop Ditch" "Phosphorus, Total" 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 6.5 MILES MT41B002_131 "STONE CREEK, Un-named tributary at T6S R7W S34 to Staudaher Bishop Ditch" "Nitrogen, Total" 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 6.5 MILES MT41B002_131 "STONE CREEK, Un-named tributary at T6S R7W S34 to Staudaher Bishop Ditch" Iron 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 6.5 MILES MT41B002_131 "STONE CREEK, Un-named tributary at T6S R7W S34 to Staudaher Bishop Ditch" Aluminum 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 6.5 MILES MT41B002_131 "STONE CREEK, Un-named tributary at T6S R7W S34 to Staudaher Bishop Ditch" Copper 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 6.5 MILES MT41B002_132 "STONE CREEK, Left and Middle Fork to un-named tributary, T6S R7W S34" Nitrate/Nitrite (Nitrite + Nitrate as N) 2000 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 7.1 MILES MT41B002_132 "STONE CREEK, Left and Middle Fork to un-named tributary, T6S R7W S34" "Phosphorus, Total" 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 7.1 MILES MT41B002_132 "STONE CREEK, Left and Middle Fork to un-named tributary, T6S R7W S34" Iron 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 7.1 MILES MT41B002_132 "STONE CREEK, Left and Middle Fork to un-named tributary, T6S R7W S34" "Nitrogen, Total" 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 7.1 MILES MT41B002_140 "DYCE CREEK, confluence of East and West Forks to Grasshopper Creek" "Nitrogen, Total" 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 4.1 MILES MT41B002_140 "DYCE CREEK, confluence of East and West Forks to Grasshopper Creek" "Phosphorus, Total" 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 4.1 MILES MT41B002_150 "WELLMAN CREEK, headwaters to mouth (Grasshopper Creek)" Aluminum 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 3.0 MILES MT41B002_150 "WELLMAN CREEK, headwaters to mouth (Grasshopper Creek)" Zinc 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 3.0 MILES MT41B002_150 "WELLMAN CREEK, headwaters to mouth (Grasshopper Creek)" Copper 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 3.0 MILES MT41B002_150 "WELLMAN CREEK, headwaters to mouth (Grasshopper Creek)" Lead 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 3.0 MILES MT41B002_150 "WELLMAN CREEK, headwaters to mouth (Grasshopper Creek)" Cadmium 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 3.0 MILES MT41B002_160 "STEEL CREEK, headwaters to mouth (Driscoll Creek), T6S R12W S18" Arsenic 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 3.7 MILES MT41B002_160 "STEEL CREEK, headwaters to mouth (Driscoll Creek), T6S R12W S18" "Nitrogen, Total" 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 3.7 MILES MT41B002_160 "STEEL CREEK, headwaters to mouth (Driscoll Creek), T6S R12W S18" "Phosphorus, Total" 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 3.7 MILES MT41B002_170 "TAYLOR CREEK, headwaters to mouth (Grasshopper Creek)" "Nitrogen, Total" 2006 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 11.7 MILES MT41B002_170 "TAYLOR CREEK, headwaters to mouth (Grasshopper Creek)" "Phosphorus, Total" 2018 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 11.7 MILES MT41B002_180 "SCUDDER CREEK, headwaters to mouth (Grasshopper Creek), T6S R12W S19" "Nitrogen, Total" 2010 B-1 5 10020002 Beaverhead Missouri Headwaters Upper Missouri Beaverhead RIVER 5.6 MILES MT41C001_010 "RUBY RIVER, Ruby Dam to mouth (Beaverhead River)" "Phosphorus, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 48.0 MILES MT41C001_020 "RUBY RIVER, confluence of East, West, and Middle Forks to Ruby Reservoir" "Phosphorus, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 41.8 MILES MT41C002_010 "WISCONSIN CREEK, headwaters to mouth (Ruby River)" Arsenic 2002 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 13.1 MILES MT41C002_010 "WISCONSIN CREEK, headwaters to mouth (Ruby River)" Copper 2002 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 13.1 MILES MT41C002_010 "WISCONSIN CREEK, headwaters to mouth (Ruby River)" Lead 2002 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 13.1 MILES MT41C002_010 "WISCONSIN CREEK, headwaters to mouth (Ruby River)" Mercury 2002 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 13.1 MILES MT41C002_020 "MILL CREEK, headwaters to mouth (Ruby River)" "Phosphorus, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 21.7 MILES MT41C002_020 "MILL CREEK, headwaters to mouth (Ruby River)" "Nitrogen, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 21.7 MILES MT41C002_040 "ALDER GULCH, headwaters to mouth (Ruby River)" Lead 2000 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 20.7 MILES MT41C002_040 "ALDER GULCH, headwaters to mouth (Ruby River)" Manganese 2000 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 20.7 MILES MT41C002_040 "ALDER GULCH, headwaters to mouth (Ruby River)" Mercury 2000 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 20.7 MILES MT41C002_040 "ALDER GULCH, headwaters to mouth (Ruby River)" "Nitrogen, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 20.7 MILES MT41C002_050 "RAMSHORN CREEK, headwaters to mouth (Ruby River)" "Phosphorus, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 15.2 MILES MT41C002_060 "CURRANT CREEK, headwaters to mouth (Ramshorn Creek), T4S R4W S35" Copper 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 3.7 MILES MT41C002_060 "CURRANT CREEK, headwaters to mouth (Ramshorn Creek), T4S R4W S35" Lead 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 3.7 MILES MT41C002_060 "CURRANT CREEK, headwaters to mouth (Ramshorn Creek), T4S R4W S35" "Nitrogen, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 3.7 MILES MT41C002_060 "CURRANT CREEK, headwaters to mouth (Ramshorn Creek), T4S R4W S35" "Phosphorus, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 3.7 MILES MT41C002_090 "CALIFORNIA CREEK, headwaters to mouth (Ruby River), T5S R4W S30" "Phosphorus, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 10.9 MILES MT41C002_100 "GARDEN CREEK, headwaters to mouth (Ruby Reservoir)" "Nitrogen, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 7.7 MILES MT41C002_100 "GARDEN CREEK, headwaters to mouth (Ruby Reservoir)" "Phosphorus, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 7.7 MILES MT41C002_110 "MORMON CREEK, headwaters to mouth (Upper end of Ruby River Reservoir )" "Phosphorus, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 7.9 MILES MT41C003_030 "COTTONWOOD CREEK, headwaters to mouth (Ruby River)" "Nitrogen, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 11.2 MILES MT41C003_040 "EAST FORK RUBY RIVER, headwaters to mouth (Ruby River)" "Phosphorus, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 10.3 MILES MT41C003_040 "EAST FORK RUBY RIVER, headwaters to mouth (Ruby River)" "Nitrogen, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 10.3 MILES MT41C003_060 "SWEETWATER CREEK, headwaters to mouth (Ruby River)" Temperature 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 24.7 MILES MT41C003_090 "MIDDLE FORK RUBY RIVER, Divide Creek to mouth (Ruby River)" "Phosphorus, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 11.8 MILES MT41C003_090 "MIDDLE FORK RUBY RIVER, Divide Creek to mouth (Ruby River)" "Nitrogen, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 11.8 MILES MT41C003_110 "POISON CREEK, headwaters to mouth (Ruby River), T11S R3W S18" Cadmium 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 6.2 MILES MT41C003_110 "POISON CREEK, headwaters to mouth (Ruby River), T11S R3W S18" Lead 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 6.2 MILES MT41C003_110 "POISON CREEK, headwaters to mouth (Ruby River), T11S R3W S18" "Nitrogen, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 6.2 MILES MT41C003_110 "POISON CREEK, headwaters to mouth (Ruby River), T11S R3W S18" "Phosphorus, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 6.2 MILES MT41C003_120 "BASIN CREEK, headwaters to mouth (Ruby River), T11S R3W S20" "Phosphorus, Total" 2006 A-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 5.4 MILES MT41C003_120 "BASIN CREEK, headwaters to mouth (Ruby River), T11S R3W S20" "Nitrogen, Total" 2006 A-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 5.4 MILES MT41C003_130 "BURNT CREEK, headwaters to mouth (Ruby River), T10S R3W S21" "Phosphorus, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 5.6 MILES MT41C003_130 "BURNT CREEK, headwaters to mouth (Ruby River), T10S R3W S21" "Nitrogen, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 5.6 MILES MT41C003_140 "HAWKEYE CREEK, headwaters to mouth (Middle Fork Ruby River)" "Phosphorus, Total" 2006 B-1 5 10020003 Ruby Missouri Headwaters Upper Missouri Ruby RIVER 4.2 MILES MT41D001_010 "BIG HOLE RIVER, Divide Creek to mouth (Jefferson River)" Cadmium 2000 B-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Lower Big Hole RIVER 49.3 MILES MT41D001_010 "BIG HOLE RIVER, Divide Creek to mouth (Jefferson River)" Copper 2000 B-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Lower Big Hole RIVER 49.3 MILES MT41D001_010 "BIG HOLE RIVER, Divide Creek to mouth (Jefferson River)" Lead 2000 B-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Lower Big Hole RIVER 49.3 MILES MT41D001_010 "BIG HOLE RIVER, Divide Creek to mouth (Jefferson River)" Zinc 2000 B-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Lower Big Hole RIVER 49.3 MILES MT41D002_020 "CAMP CREEK, headwaters to mouth (Big Hole River)" Arsenic 2006 B-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Lower Big Hole RIVER 15.6 MILES MT41D002_070 "SASSMAN GULCH, headwaters to the end of the stream reach in T4S R9W S9" Arsenic 1988 B-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Lower Big Hole RIVER 3.9 MILES MT41D002_120 "WICKIUP CREEK, headwaters to mouth (Camp Creek), T2S R8W S1" Lead 1994 B-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Lower Big Hole RIVER 4.1 MILES MT41D002_120 "WICKIUP CREEK, headwaters to mouth (Camp Creek), T2S R8W S1" Mercury 1994 B-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Lower Big Hole RIVER 4.1 MILES MT41D002_120 "WICKIUP CREEK, headwaters to mouth (Camp Creek), T2S R8W S1" "Phosphorus, Total" 2006 B-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Lower Big Hole RIVER 4.1 MILES MT41D002_120 "WICKIUP CREEK, headwaters to mouth (Camp Creek), T2S R8W S1" Sediment 1994 B-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Lower Big Hole RIVER 4.1 MILES MT41D002_150 "CHARCOAL CREEK, headwaters to mouth (Big Hole River)" Sedimentation/Siltation 2006 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Middle Big Hole RIVER 4.1 MILES MT41D002_150 "CHARCOAL CREEK, headwaters to mouth (Big Hole River)" "Nitrogen, Total" 2006 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Middle Big Hole RIVER 4.1 MILES MT41D002_150 "CHARCOAL CREEK, headwaters to mouth (Big Hole River)" "Phosphorus, Total" 2006 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Middle Big Hole RIVER 4.1 MILES MT41D003_020 "JERRY CREEK, headwaters to mouth (Big Hole River)" Lead 2000 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Middle Big Hole RIVER 12.7 MILES MT41D003_070 "CALIFORNIA CREEK, headwaters to mouth (French Creek-Deep Creek)" Iron 1992 B-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Middle Big Hole RIVER 8.3 MILES MT41D003_080 "OREGON CREEK, headwaters to mouth (California Creek-French Creek-Deep Creek)" Lead 2000 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Middle Big Hole RIVER 3.1 MILES MT41D003_120 "TWELVEMILE CREEK, headwaters to mouth (Deep Creek)" Sedimentation/Siltation 1992 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Middle Big Hole RIVER 9.1 MILES MT41D003_160 "FISHTRAP CREEK, confluence of West & Middle Forks to mouth (Big Hole River)" "Phosphorus, Total" 2006 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Middle Big Hole RIVER 5.9 MILES MT41D003_170 "PINTLAR CREEK, headwaters to mouth (Big Hole River)" Temperature 2000 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Middle Big Hole RIVER 21.3 MILES MT41D003_230 "GOLD CREEK, headwaters to mouth (Wise River)" "Phosphorus, Total" 2006 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Middle Big Hole RIVER 4.9 MILES MT41D004_020 "MUSSIGBROD CREEK, headwaters to mouth (North Fork Big Hole River)" Lead 2000 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri North Fork Big Hole RIVER 14.6 MILES MT41D004_030 "JOHNSON CREEK, headwaters to mouth (North Fork Big Hole River)" "Nitrogen, Total" 2006 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri North Fork Big Hole RIVER 15.7 MILES MT41D004_040 "SCHULTZ CREEK, headwaters to mouth (Johnson Creek)" Sedimentation/Siltation 1992 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri North Fork Big Hole RIVER 3.3 MILES MT41D004_060 "TIE CREEK, headwaters to mouth (North Fork Big Hole River)" "Nitrogen, Total" 2006 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri North Fork Big Hole RIVER 16.5 MILES MT41D004_090 "JOSEPH CREEK, headwaters to mouth (Trail Creek)" Copper 2002 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri North Fork Big Hole RIVER 7.3 MILES MT41D004_090 "JOSEPH CREEK, headwaters to mouth (Trail Creek)" Lead 2002 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri North Fork Big Hole RIVER 7.3 MILES MT41D004_110 "SWAMP CREEK, headwaters to mouth (Big Hole River)" "Nitrogen, Total" 2006 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Upper Big Hole RIVER 25.0 MILES MT41D004_110 "SWAMP CREEK, headwaters to mouth (Big Hole River)" "Phosphorus, Total" 2006 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Upper Big Hole RIVER 25.0 MILES MT41D004_120 "ROCK CREEK, headwaters to mouth (Big Hole River)" "Nitrogen, Total" 2002 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Upper Big Hole RIVER 25.6 MILES MT41D004_120 "ROCK CREEK, headwaters to mouth (Big Hole River)" "Phosphorus, Total" 2002 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Upper Big Hole RIVER 25.6 MILES MT41D004_150 "GOVERNOR CREEK, headwaters to mouth (Warm Springs Creek)" Copper 2000 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Upper Big Hole RIVER 19.0 MILES MT41D004_160 "PINE CREEK, headwaters to mouth (Andrus Creek)" "Phosphorus, Total" 2006 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Upper Big Hole RIVER 5.4 MILES MT41D004_170 "FOX CREEK, headwaters to mouth (Governor Creek)" "Phosphorus, Total" 2006 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Upper Big Hole RIVER 6.9 MILES MT41D004_180 "WARM SPRINGS CREEK, headwaters to mouth (Big Hole River)" Sedimentation/Siltation 2006 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Upper Big Hole RIVER 20.0 MILES MT41D004_180 "WARM SPRINGS CREEK, headwaters to mouth (Big Hole River)" "Phosphorus, Total" 2006 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Upper Big Hole RIVER 20.0 MILES MT41D004_180 "WARM SPRINGS CREEK, headwaters to mouth (Big Hole River)" "Nitrogen, Total" 2006 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Upper Big Hole RIVER 20.0 MILES MT41D004_190 "STEEL CREEK, headwaters to mouth (Big Hole River)" Cadmium 2000 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Upper Big Hole RIVER 16.7 MILES MT41D004_190 "STEEL CREEK, headwaters to mouth (Big Hole River)" Copper 2000 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Upper Big Hole RIVER 16.7 MILES MT41D004_210 "McVEY CREEK, headwaters to mouth (Big Hole River)" "Nitrogen, Total" 2006 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Upper Big Hole RIVER 9.5 MILES MT41D004_210 "McVEY CREEK, headwaters to mouth (Big Hole River)" "Phosphorus, Total" 2006 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Upper Big Hole RIVER 9.5 MILES MT41D004_230 "SAWLOG CREEK, headwaters to mouth (Big Hole River)" "Phosphorus, Total" 2006 A-1 5 10020004 Big Hole Missouri Headwaters Upper Missouri Middle Big Hole RIVER 4.8 MILES MT41F001_010 "MADISON RIVER, Madison Dam to mouth (Missouri River)" Sedimentation/Siltation 2000 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 41.3 MILES MT41F001_010 "MADISON RIVER, Madison Dam to mouth (Missouri River)" Temperature 1990 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 41.3 MILES MT41F001_010 "MADISON RIVER, Madison Dam to mouth (Missouri River)" Arsenic 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 41.3 MILES MT41F001_020 "MADISON RIVER, Quake Lake to Ennis Lake" Arsenic 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 56.0 MILES MT41F001_030 "MADISON RIVER, Hebgen Dam to Quake Lake" Arsenic 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 2.3 MILES MT41F002_010 "CHERRY CREEK, headwaters to mouth (Madison River)" Sedimentation/Siltation 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 24.0 MILES MT41F002_010 "CHERRY CREEK, headwaters to mouth (Madison River)" Temperature 2018 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 24.0 MILES MT41F002_020 "ELK CREEK, headwaters to mouth (Madison River)" Sedimentation/Siltation 1992 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 18.3 MILES MT41F002_020 "ELK CREEK, headwaters to mouth (Madison River)" Temperature 2000 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 18.3 MILES MT41F002_020 "ELK CREEK, headwaters to mouth (Madison River)" Turbidity 2000 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 18.3 MILES MT41F002_020 "ELK CREEK, headwaters to mouth (Madison River)" "Phosphorus, Total" 2000 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 18.3 MILES MT41F002_020 "ELK CREEK, headwaters to mouth (Madison River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2000 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 18.3 MILES MT41F002_020 "ELK CREEK, headwaters to mouth (Madison River)" Iron 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 18.3 MILES MT41F002_020 "ELK CREEK, headwaters to mouth (Madison River)" Selenium 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 18.3 MILES MT41F002_020 "ELK CREEK, headwaters to mouth (Madison River)" "Nitrogen, Total" 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 18.3 MILES MT41F002_020 "ELK CREEK, headwaters to mouth (Madison River)" Arsenic 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 18.3 MILES MT41F002_030 "HOT SPRINGS CREEK, headwaters to mouth (Madison River)" Iron 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 14.0 MILES MT41F002_030 "HOT SPRINGS CREEK, headwaters to mouth (Madison River)" Lead 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 14.0 MILES MT41F002_030 "HOT SPRINGS CREEK, headwaters to mouth (Madison River)" "Nitrogen, Total" 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 14.0 MILES MT41F002_030 "HOT SPRINGS CREEK, headwaters to mouth (Madison River)" "Phosphorus, Total" 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 14.0 MILES MT41F002_030 "HOT SPRINGS CREEK, headwaters to mouth (Madison River)" Sedimentation/Siltation 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 14.0 MILES MT41F004_010 "BLAINE SPRING CREEK, headwaters to mouth (Madison River, T7S R1W S6)" Sedimentation/Siltation 2006 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 5.0 MILES MT41F004_010 "BLAINE SPRING CREEK, headwaters to mouth (Madison River, T7S R1W S6)" "Nitrogen, Total" 2006 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 5.0 MILES MT41F004_010 "BLAINE SPRING CREEK, headwaters to mouth (Madison River, T7S R1W S6)" Arsenic 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 5.0 MILES MT41F004_020 "O'DELL SPRING CREEK, headwaters to mouth (Madison River)" Arsenic 2000 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 13.2 MILES MT41F004_020 "O'DELL SPRING CREEK, headwaters to mouth (Madison River)" "Nitrogen, Total" 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 13.2 MILES MT41F004_021 "BEAR CREEK, headwaters to mouth (O'Dell Spring Creek)" Sedimentation/Siltation 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 27.3 MILES MT41F004_060 "NORTH MEADOW CREEK, headwaters to mouth (Ennis Lake)" Sedimentation/Siltation 1994 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 18.5 MILES MT41F004_070 "SOUTH MEADOW CREEK, headwaters to mouth (Ennis Lake)" Copper 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 13.0 MILES MT41F004_070 "SOUTH MEADOW CREEK, headwaters to mouth (Ennis Lake)" "Nitrogen, Total" 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 13.0 MILES MT41F004_070 "SOUTH MEADOW CREEK, headwaters to mouth (Ennis Lake)" "Phosphorus, Total" 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 13.0 MILES MT41F004_070 "SOUTH MEADOW CREEK, headwaters to mouth (Ennis Lake)" Sedimentation/Siltation 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 13.0 MILES MT41F004_080 "RUBY CREEK, headwaters to mouth (Madison River)" Sedimentation/Siltation 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 15.9 MILES MT41F004_100 "WEST FORK MADISON RIVER, headwaters to mouth (Madison River)" Temperature 2000 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 39.4 MILES MT41F004_130 "MOORE CREEK, springs to mouth (Fletcher Channel), T5S R1W S15" Arsenic 2000 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 15.8 MILES MT41F004_130 "MOORE CREEK, springs to mouth (Fletcher Channel), T5S R1W S15" Escherichia coli (E. Coli) 2000 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 15.8 MILES MT41F004_130 "MOORE CREEK, springs to mouth (Fletcher Channel), T5S R1W S15" "Nitrogen, Total" 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 15.8 MILES MT41F004_130 "MOORE CREEK, springs to mouth (Fletcher Channel), T5S R1W S15" "Phosphorus, Total" 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 15.8 MILES MT41F004_130 "MOORE CREEK, springs to mouth (Fletcher Channel), T5S R1W S15" Sedimentation/Siltation 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 15.8 MILES MT41F004_130 "MOORE CREEK, springs to mouth (Fletcher Channel), T5S R1W S15" Temperature 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 15.8 MILES MT41F004_140 "ANTELOPE CREEK, headwaters to mouth (Cliff Lake)" Sedimentation/Siltation 2006 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 9.5 MILES MT41F004_150 "BUFORD CREEK, headwaters to confluence with West Fork Madison River" Arsenic 2006 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 4.4 MILES MT41F004_160 "WIGWAM CREEK, headwaters to mouth (Madison River)" Sedimentation/Siltation 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 11.9 MILES MT41F005_030 ENNIS LAKE Arsenic 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison FRESHWATER LAKE " 3,757.8 " ACRES MT41F006_020 "RED CANYON CREEK, headwaters to mouth (Hebgen Lake)" Sedimentation/Siltation 1990 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 6.3 MILES MT41F006_030 "WATKINS CREEK, headwaters to mouth (Hebgen Lake)" Sedimentation/Siltation 2016 B-1 5 10020007 Madison Missouri Headwaters Upper Missouri Madison RIVER 7.1 MILES MT41G001_011 "JEFFERSON RIVER, headwaters to confluence of Jefferson Slough" Sedimentation/Siltation 1988 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Upper Jefferson RIVER 40.9 MILES MT41G001_012 "JEFFERSON RIVER, confluence of Jefferson Slough to mouth (Missouri River)" Sedimentation/Siltation 1988 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 33.5 MILES MT41G001_012 "JEFFERSON RIVER, confluence of Jefferson Slough to mouth (Missouri River)" Temperature 2000 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 33.5 MILES MT41G002_010 "BIG PIPESTONE CREEK, headwaters to mouth (Jefferson Slough), T1N R4W S11" Temperature 2000 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Upper Jefferson RIVER 22.5 MILES MT41G002_010 "BIG PIPESTONE CREEK, headwaters to mouth (Jefferson Slough), T1N R4W S11" "Nitrogen, Total" 1990 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Upper Jefferson RIVER 22.5 MILES MT41G002_010 "BIG PIPESTONE CREEK, headwaters to mouth (Jefferson Slough), T1N R4W S11" "Phosphorus, Total" 1990 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Upper Jefferson RIVER 22.5 MILES MT41G002_020 "HALFWAY CREEK, headwaters to mouth (Big Pipestone Creek-Jefferson River)" Sedimentation/Siltation 1992 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Upper Jefferson RIVER 7.9 MILES MT41G002_040 "LITTLE PIPESTONE CREEK, headwaters to mouth (Big Pipestone Creek)" "Nitrogen, Total" 2006 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Upper Jefferson RIVER 16.9 MILES MT41G002_040 "LITTLE PIPESTONE CREEK, headwaters to mouth (Big Pipestone Creek)" "Phosphorus, Total" 2006 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Upper Jefferson RIVER 16.9 MILES MT41G002_050 "NORTH WILLOW CREEK, headwaters to mouth (Willow Creek)" Lead 1992 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 17.6 MILES MT41G002_050 "NORTH WILLOW CREEK, headwaters to mouth (Willow Creek)" Mercury 1992 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 17.6 MILES MT41G002_060 "SOUTH BOULDER RIVER, headwaters to mouth (Jefferson River)" Arsenic 2000 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 23.3 MILES MT41G002_060 "SOUTH BOULDER RIVER, headwaters to mouth (Jefferson River)" Copper 2000 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 23.3 MILES MT41G002_060 "SOUTH BOULDER RIVER, headwaters to mouth (Jefferson River)" Lead 2000 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 23.3 MILES MT41G002_060 "SOUTH BOULDER RIVER, headwaters to mouth (Jefferson River)" Mercury 2000 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 23.3 MILES MT41G002_060 "SOUTH BOULDER RIVER, headwaters to mouth (Jefferson River)" "Phosphorus, Total" 2000 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 23.3 MILES MT41G002_080 "WILLOW CREEK, North and South Fork confluence to mouth (Jefferson River)" Temperature 2000 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 15.3 MILES MT41G002_080 "WILLOW CREEK, North and South Fork confluence to mouth (Jefferson River)" Zinc 2000 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 15.3 MILES MT41G002_090 "NORWEGIAN CREEK, headwaters to mouth (Willow Creek Reservoir)" Arsenic 2006 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 10.8 MILES MT41G002_090 "NORWEGIAN CREEK, headwaters to mouth (Willow Creek Reservoir)" Sedimentation/Siltation 2006 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 10.8 MILES MT41G002_090 "NORWEGIAN CREEK, headwaters to mouth (Willow Creek Reservoir)" Temperature 2006 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 10.8 MILES MT41G002_090 "NORWEGIAN CREEK, headwaters to mouth (Willow Creek Reservoir)" "Phosphorus, Total" 2006 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 10.8 MILES MT41G002_090 "NORWEGIAN CREEK, headwaters to mouth (Willow Creek Reservoir)" "Nitrogen, Total" 2006 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 10.8 MILES MT41G002_130 "SOUTH WILLOW CREEK, headwaters to mouth (Willow Creek)" Sedimentation/Siltation 1992 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 16.2 MILES MT41G002_130 "SOUTH WILLOW CREEK, headwaters to mouth (Willow Creek)" Zinc 1992 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 16.2 MILES MT41G002_141 "WHITETAIL DEER CREEK, headwaters to mouth (Jefferson Slough)" "Ammonia, Un-ionized" 2006 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Upper Jefferson RIVER 27.1 MILES MT41G002_141 "WHITETAIL DEER CREEK, headwaters to mouth (Jefferson Slough)" Nitrate/Nitrite (Nitrite + Nitrate as N) 1994 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Upper Jefferson RIVER 27.1 MILES MT41G002_141 "WHITETAIL DEER CREEK, headwaters to mouth (Jefferson Slough)" "Phosphorus, Total" 1994 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Upper Jefferson RIVER 27.1 MILES MT41G002_141 "WHITETAIL DEER CREEK, headwaters to mouth (Jefferson Slough)" "Nitrogen, Total" 1994 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Upper Jefferson RIVER 27.1 MILES MT41G002_150 "CHARCOAL CREEK, headwaters to mouth (Pony Creek)" Sedimentation/Siltation 1994 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Lower Jefferson RIVER 2.7 MILES MT41G002_160 "FITZ CREEK, headwaters to mouth (Whitetail Deer Creek)" Sedimentation/Siltation 1996 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Upper Jefferson RIVER 4.7 MILES MT41G002_160 "FITZ CREEK, headwaters to mouth (Whitetail Deer Creek)" "Phosphorus, Total" 2006 B-1 5 10020005 Jefferson Missouri Headwaters Upper Missouri Upper Jefferson RIVER 4.7 MILES MT41H005_010 "STORM CASTLE CREEK, headwaters to the mouth (Gallatin River), T4S R4E S33" "Phosphorus, Total" 2000 B-1 5 10020008 Gallatin Missouri Headwaters Upper Missouri Upper Gallatin RIVER 14.2 MILES MT41H005_020 "TAYLOR FORK, Lee Metcalf Wilderness boundary to mouth (Gallatin River)" Sedimentation/Siltation 2000 B-1 5 10020008 Gallatin Missouri Headwaters Upper Missouri Upper Gallatin RIVER 14.0 MILES MT41H005_030 "CACHE CREEK, headwaters to mouth (Taylor Fork)" Sedimentation/Siltation 1988 B-1 5 10020008 Gallatin Missouri Headwaters Upper Missouri Upper Gallatin RIVER 4.7 MILES MT41H005_040 "WEST FORK GALLATIN RIVER, confluence Middle and North Forks to mouth (Gallatin River)" "Phosphorus, Total" 2000 B-1 5 10020008 Gallatin Missouri Headwaters Upper Missouri Upper Gallatin RIVER 3.9 MILES MT41H005_060 "SOUTH FORK WEST FORK GALLATIN RIVER, headwaters to mouth (West Fork Gallatin River)" "Phosphorus, Total" 2000 B-1 5 10020008 Gallatin Missouri Headwaters Upper Missouri Upper Gallatin RIVER 14.6 MILES MT41I001_011 "MISSOURI RIVER, headwaters to Toston Dam" Arsenic 2006 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River RIVER 22.0 MILES MT41I001_011 "MISSOURI RIVER, headwaters to Toston Dam" Sedimentation/Siltation 1988 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River RIVER 22.0 MILES MT41I001_011 "MISSOURI RIVER, headwaters to Toston Dam" "Nitrogen, Total" 1988 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River RIVER 22.0 MILES MT41I001_012 "MISSOURI RIVER, Toston Dam to Canyon Ferry Reservoir" Cadmium 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River RIVER 22.6 MILES MT41I001_012 "MISSOURI RIVER, Toston Dam to Canyon Ferry Reservoir" Copper 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River RIVER 22.6 MILES MT41I001_012 "MISSOURI RIVER, Toston Dam to Canyon Ferry Reservoir" Lead 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River RIVER 22.6 MILES MT41I001_012 "MISSOURI RIVER, Toston Dam to Canyon Ferry Reservoir" Sedimentation/Siltation 1988 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River RIVER 22.6 MILES MT41I002_020 "BATTLE CREEK, headwaters to mouth (Sixteenmile Creek)" Sedimentation/Siltation 1990 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 22.8 MILES MT41I002_020 "BATTLE CREEK, headwaters to mouth (Sixteenmile Creek)" Temperature 2006 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 22.8 MILES MT41I002_020 "BATTLE CREEK, headwaters to mouth (Sixteenmile Creek)" "Phosphorus, Total" 2006 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 22.8 MILES MT41I002_030 "BEAVER CREEK, headwaters to mouth (Canyon Ferry Reservoir)" Cadmium 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 14.7 MILES MT41I002_030 "BEAVER CREEK, headwaters to mouth (Canyon Ferry Reservoir)" "Chromium, Total" 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 14.7 MILES MT41I002_030 "BEAVER CREEK, headwaters to mouth (Canyon Ferry Reservoir)" Lead 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 14.7 MILES MT41I002_030 "BEAVER CREEK, headwaters to mouth (Canyon Ferry Reservoir)" Silver 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 14.7 MILES MT41I002_030 "BEAVER CREEK, headwaters to mouth (Canyon Ferry Reservoir)" Zinc 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 14.7 MILES MT41I002_030 "BEAVER CREEK, headwaters to mouth (Canyon Ferry Reservoir)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 14.7 MILES MT41I002_030 "BEAVER CREEK, headwaters to mouth (Canyon Ferry Reservoir)" "Phosphorus, Total" 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 14.7 MILES MT41I002_041 "CONFEDERATE GULCH, headwaters to Hunter Gulch" Cadmium 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 10.0 MILES MT41I002_041 "CONFEDERATE GULCH, headwaters to Hunter Gulch" Nitrate/Nitrite (Nitrite + Nitrate as N) 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 10.0 MILES MT41I002_042 "CONFEDERATE GULCH, Hunter Gulch to mouth (Canyon Ferry Reservoir)" "Phosphorus, Total" 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 5.2 MILES MT41I002_042 "CONFEDERATE GULCH, Hunter Gulch to mouth (Canyon Ferry Reservoir)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 5.2 MILES MT41I002_050 "CROW CREEK, National Forest boundary to mouth (Missouri River)" Sedimentation/Siltation 1996 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 15.9 MILES MT41I002_050 "CROW CREEK, National Forest boundary to mouth (Missouri River)" "Nitrogen, Total" 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 15.9 MILES MT41I002_050 "CROW CREEK, National Forest boundary to mouth (Missouri River)" "Phosphorus, Total" 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 15.9 MILES MT41I002_060 "CROW CREEK, Crow Creek Falls to National Forest boundary" Copper 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 10.2 MILES MT41I002_060 "CROW CREEK, Crow Creek Falls to National Forest boundary" Lead 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 10.2 MILES MT41I002_070 "DEEP CREEK, National Forest boundary to mouth (Missouri River)" Temperature 2016 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Deep Creek RIVER 20.4 MILES MT41I002_080 "DRY CREEK, headwaters to mouth (Missouri River)" Sedimentation/Siltation 1988 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 21.6 MILES MT41I002_080 "DRY CREEK, headwaters to mouth (Missouri River)" Temperature 2006 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 21.6 MILES MT41I002_080 "DRY CREEK, headwaters to mouth (Missouri River)" "Phosphorus, Total" 2006 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 21.6 MILES MT41I002_090 "HELLGATE GULCH, headwaters to mouth (Canyon Ferry Reservoir)" Mercury 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 11.6 MILES MT41I002_100 "INDIAN CREEK, headwaters to mouth (Missouri River)" Arsenic 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 8.0 MILES MT41I002_100 "INDIAN CREEK, headwaters to mouth (Missouri River)" Cadmium 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 8.0 MILES MT41I002_100 "INDIAN CREEK, headwaters to mouth (Missouri River)" Lead 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 8.0 MILES MT41I002_100 "INDIAN CREEK, headwaters to mouth (Missouri River)" Mercury 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 8.0 MILES MT41I002_110 "MAGPIE CREEK, headwaters to mouth (Canyon Ferry Reservoir)" Sedimentation/Siltation 2006 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 12.8 MILES MT41I002_110 "MAGPIE CREEK, headwaters to mouth (Canyon Ferry Reservoir)" "Nitrogen, Total" 2006 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 12.8 MILES MT41I002_120 "SIXTEENMILE CREEK, Lost Creek to mouth (Missouri River)" Sedimentation/Siltation 1988 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 49.6 MILES MT41I002_120 "SIXTEENMILE CREEK, Lost Creek to mouth (Missouri River)" "Phosphorus, Total" 1988 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 49.6 MILES MT41I002_120 "SIXTEENMILE CREEK, Lost Creek to mouth (Missouri River)" "Nitrogen, Total" 1988 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 49.6 MILES MT41I002_130 "WHITE GULCH, headwaters to mouth (Canyon Ferry Reservoir)" Sedimentation/Siltation 2006 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 13.3 MILES MT41I002_140 "WILSON CREEK, 3.3 miles upstream to mouth (Crow Creek)" Mercury 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 3.3 MILES MT41I002_150 "CAVE GULCH, headwaters to mouth (Canyon Ferry Reservoir)" Sedimentation/Siltation 1992 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 6.4 MILES MT41I002_150 "CAVE GULCH, headwaters to mouth (Canyon Ferry Reservoir)" "Phosphorus, Total" 2006 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 6.4 MILES MT41I002_150 "CAVE GULCH, headwaters to mouth (Canyon Ferry Reservoir)" "Nitrogen, Total" 2006 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 6.4 MILES MT41I002_170 "EAST FORK INDIAN CREEK, headwaters to mouth (Indian Creek)" Arsenic 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 5.9 MILES MT41I002_170 "EAST FORK INDIAN CREEK, headwaters to mouth (Indian Creek)" Cadmium 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 5.9 MILES MT41I002_170 "EAST FORK INDIAN CREEK, headwaters to mouth (Indian Creek)" Lead 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 5.9 MILES MT41I002_170 "EAST FORK INDIAN CREEK, headwaters to mouth (Indian Creek)" Mercury 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 5.9 MILES MT41I003_010 CANYON FERRY RESERVOIR "Ammonia, Un-ionized" 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River FRESHWATER LAKE " 32,810.0 " ACRES MT41I003_010 CANYON FERRY RESERVOIR Arsenic 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River FRESHWATER LAKE " 32,810.0 " ACRES MT41I003_010 CANYON FERRY RESERVOIR Thallium 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River FRESHWATER LAKE " 32,810.0 " ACRES MT41I004_030 "MISSOURI RIVER, Holter Dam to Little Prickly Pear Creek" Sedimentation/Siltation 1988 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River RIVER 2.8 MILES MT41I004_030 "MISSOURI RIVER, Holter Dam to Little Prickly Pear Creek" "Phosphorus, Total" 1988 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River RIVER 2.8 MILES MT41I004_030 "MISSOURI RIVER, Holter Dam to Little Prickly Pear Creek" "Nitrogen, Total" 1988 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River RIVER 2.8 MILES MT41I005_011 "BEAVER CREEK, headwaters to confluence of Bridge Creek" Sedimentation/Siltation 1988 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Holter RIVER 13.8 MILES MT41I005_012 "BEAVER CREEK, Nelson to mouth (Missouri River below Hauser Dam)" Sedimentation/Siltation 1988 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Holter RIVER 5.5 MILES MT41I005_020 "TROUT CREEK, headwaters to mouth (Hauser Lake)" Sedimentation/Siltation 1988 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Canyon Ferry RIVER 20.5 MILES MT41I005_040 "VIRGINIA CREEK, headwaters to mouth (Canyon Creek)" Lead 1988 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Holter RIVER 8.3 MILES MT41I005_051 "LITTLE PRICKLY PEAR CREEK, North and South Forks to Clark Creek" Sedimentation/Siltation 1988 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Holter RIVER 23.9 MILES MT41I005_051 "LITTLE PRICKLY PEAR CREEK, North and South Forks to Clark Creek" Temperature 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Holter RIVER 23.9 MILES MT41I005_052 "LITTLE PRICKLY PEAR CREEK, Clark Creek to mouth (Missouri River)" Temperature 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Holter RIVER 10.2 MILES MT41I005_080 "WOODSIDING GULCH, headwaters to mouth (Little Prickly Pear Creek), T13N R4W S33" "Phosphorus, Total" 2006 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Holter RIVER 2.2 MILES MT41I006_020 "PRICKLY PEAR CREEK, Helena WWTP Discharge Ditch to Lake Helena" "Ammonia, Un-ionized" 1990 I 5 10030101 Upper Missouri Upper Missouri Upper Missouri Lake Helena RIVER 4.2 MILES MT41I006_020 "PRICKLY PEAR CREEK, Helena WWTP Discharge Ditch to Lake Helena" Temperature 2000 I 5 10030101 Upper Missouri Upper Missouri Upper Missouri Lake Helena RIVER 4.2 MILES MT41I006_030 "PRICKLY PEAR CREEK, Highway 433 (Wylie Dr.) Crossing to Helena WWTP Discharge" "Ammonia, Un-ionized" 2006 I 5 10030101 Upper Missouri Upper Missouri Upper Missouri Lake Helena RIVER 6.5 MILES MT41I006_030 "PRICKLY PEAR CREEK, Highway 433 (Wylie Dr.) Crossing to Helena WWTP Discharge" Temperature 2000 I 5 10030101 Upper Missouri Upper Missouri Upper Missouri Lake Helena RIVER 6.5 MILES MT41I006_090 "CORBIN CREEK, headwaters to mouth (Spring Creek)" Temperature 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Lake Helena RIVER 2.8 MILES MT41I006_141 "TENMILE CREEK, headwaters to confluence of Spring Creek" Sedimentation/Siltation 1988 A-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Lake Helena RIVER 6.7 MILES MT41I006_150 "SILVER CREEK, headwaters to T11N R4W S30 / S31 to Lake Helena" DDE (Dichlorodiphenyldichloroethylene) 1992 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Lake Helena RIVER 22.1 MILES MT41I006_180 "NORTH FORK WARM SPRINGS CREEK, headwaters to mouth (Warmsprings Creek)" Organic Enrichment 2002 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Lake Helena RIVER 2.7 MILES MT41I006_210 "JENNIES FORK, headwaters to mouth (Silver Creek)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Lake Helena RIVER 1.4 MILES MT41I006_210 "JENNIES FORK, headwaters to mouth (Silver Creek)" "Phosphorus, Total" 2006 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Lake Helena RIVER 1.4 MILES MT41I007_020 HOLTER LAKE Mercury 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River FRESHWATER LAKE " 4,358.0 " ACRES MT41I007_040 HAUSER LAKE DDT (Dichlorodiphenyltrichloroethane) 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River FRESHWATER LAKE " 3,190.0 " ACRES MT41I007_040 HAUSER LAKE Endrin aldehyde 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River FRESHWATER LAKE " 3,190.0 " ACRES MT41I007_040 HAUSER LAKE Mercury 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River FRESHWATER LAKE " 3,190.0 " ACRES MT41I007_040 HAUSER LAKE Dissolved Oxygen 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River FRESHWATER LAKE " 3,190.0 " ACRES MT41I007_040 HAUSER LAKE "Phosphorus, Total" 2010 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River FRESHWATER LAKE " 3,190.0 " ACRES MT41I007_040 HAUSER LAKE Endosulfan sulfate 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River FRESHWATER LAKE " 3,190.0 " ACRES MT41I007_040 HAUSER LAKE Arsenic 2000 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River FRESHWATER LAKE " 3,190.0 " ACRES MT41I007_040 HAUSER LAKE Nitrate/Nitrite (Nitrite + Nitrate as N) 2010 B-1 5 10030101 Upper Missouri Upper Missouri Upper Missouri Missouri River FRESHWATER LAKE " 3,190.0 " ACRES MT41J001_010 "SMITH RIVER, North and South Forks to Hound Creek" "Phosphorus, Total" 2000 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 98.1 MILES MT41J001_010 "SMITH RIVER, North and South Forks to Hound Creek" Escherichia coli (E. Coli) 2000 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 98.1 MILES MT41J001_020 "SMITH RIVER, Hound Creek to mouth (Missouri River)" Temperature 1988 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 24.1 MILES MT41J001_020 "SMITH RIVER, Hound Creek to mouth (Missouri River)" "Phosphorus, Total" 2000 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 24.1 MILES MT41J002_011 "NORTH FORK SMITH RIVER, Lake Sutherlin to mouth (Smith River), T9N R6E S21" "Nitrogen, Total" 2000 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 23.0 MILES MT41J002_011 "NORTH FORK SMITH RIVER, Lake Sutherlin to mouth (Smith River), T9N R6E S21" "Phosphorus, Total" 2000 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 23.0 MILES MT41J002_011 "NORTH FORK SMITH RIVER, Lake Sutherlin to mouth (Smith River), T9N R6E S21" Escherichia coli (E. Coli) 2000 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 23.0 MILES MT41J002_020 "HOUND CREEK, Spring Creek to mouth (Smith River)" "Nitrogen, Total" 2006 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 6.7 MILES MT41J002_030 "SHEEP CREEK, headwaters to mouth (Smith River)" Aluminum 2012 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 41.3 MILES MT41J002_040 "BEAVER CREEK, headwaters to mouth (Smith River)" Sedimentation/Siltation 1990 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 20.6 MILES MT41J002_040 "BEAVER CREEK, headwaters to mouth (Smith River)" "Phosphorus, Total" 2006 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 20.6 MILES MT41J002_040 "BEAVER CREEK, headwaters to mouth (Smith River)" "Nitrogen, Total" 2006 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 20.6 MILES MT41J002_050 "BENTON GULCH, headwaters to mouth (Smith River)" Escherichia coli (E. Coli) 2000 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 13.4 MILES MT41J002_060 "ELK CREEK, headwaters to mouth (Camas Creek)" Sedimentation/Siltation 1990 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 10.4 MILES MT41J002_060 "ELK CREEK, headwaters to mouth (Camas Creek)" Temperature 1988 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 10.4 MILES MT41J002_060 "ELK CREEK, headwaters to mouth (Camas Creek)" "Phosphorus, Total" 2006 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 10.4 MILES MT41J002_060 "ELK CREEK, headwaters to mouth (Camas Creek)" "Nitrogen, Total" 2006 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 10.4 MILES MT41J002_070 "THOMPSON GULCH, headwaters to mouth (Smith River)" Sedimentation/Siltation 1988 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 10.8 MILES MT41J002_070 "THOMPSON GULCH, headwaters to mouth (Smith River)" "Nitrogen, Total" 2006 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 10.8 MILES MT41J002_081 "NEWLAN CREEK, Newlan Reservoir to mouth (Smith River)" Sedimentation/Siltation 1988 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 9.0 MILES MT41J002_081 "NEWLAN CREEK, Newlan Reservoir to mouth (Smith River)" Temperature 2006 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 9.0 MILES MT41J002_081 "NEWLAN CREEK, Newlan Reservoir to mouth (Smith River)" Escherichia coli (E. Coli) 2010 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 9.0 MILES MT41J002_082 "NEWLAN CREEK, headwaters to Newlan Reservoir" Cadmium 2006 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 13.3 MILES MT41J002_082 "NEWLAN CREEK, headwaters to Newlan Reservoir" Sedimentation/Siltation 1988 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 13.3 MILES MT41J002_082 "NEWLAN CREEK, headwaters to Newlan Reservoir" "Phosphorus, Total" 2006 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 13.3 MILES MT41J002_082 "NEWLAN CREEK, headwaters to Newlan Reservoir" "Nitrogen, Total" 2006 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 13.3 MILES MT41J002_100 "LITTLE CAMAS CREEK, headwaters to mouth (Camas Creek)" Temperature 1990 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 3.8 MILES MT41J002_100 "LITTLE CAMAS CREEK, headwaters to mouth (Camas Creek)" "Nitrogen, Total" 2006 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 3.8 MILES MT41J002_110 "CAMAS CREEK, junction of Big and Little Camas Creeks to mouth (Smith River)" Escherichia coli (E. Coli) 2000 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 14.3 MILES MT41J002_120 "MOOSE CREEK, headwaters to mouth (Sheep Creek)" Aluminum 2016 B-1 5 10030103 Smith Upper Missouri Upper Missouri Smith RIVER 11.6 MILES MT41K002_040 "HUBER COULEE, headwaters to mouth (Sun River Valley Ditch)" Escherichia coli (E. Coli) 2012 B-1 5 10030104 Sun Upper Missouri Upper Missouri Sun RIVER 3.6 MILES MT41K004_030 FREEZEOUT LAKE "Phosphorus, Total" 2000 B-2 5 10030205 Teton Marias Lower Missouri Sun FRESHWATER LAKE " 3,013.2 " ACRES MT41L001_010 "OLD MAIDS COULEE, headwaters to mouth (Cutbank Creek)" Chloride 1990 B-1 5 10030202 Cut Bank Marias Lower Missouri Cut Bank - Two Medicine RIVER 17.6 MILES MT41L001_010 "OLD MAIDS COULEE, headwaters to mouth (Cutbank Creek)" "Ammonia, Total" 1990 B-1 5 10030202 Cut Bank Marias Lower Missouri Cut Bank - Two Medicine RIVER 17.6 MILES MT41L001_010 "OLD MAIDS COULEE, headwaters to mouth (Cutbank Creek)" Specific Conductivity 1990 B-1 5 10030202 Cut Bank Marias Lower Missouri Cut Bank - Two Medicine RIVER 17.6 MILES MT41L001_010 "OLD MAIDS COULEE, headwaters to mouth (Cutbank Creek)" Total Dissolved Solids (TDS) 1990 B-1 5 10030202 Cut Bank Marias Lower Missouri Cut Bank - Two Medicine RIVER 17.6 MILES MT41L001_010 "OLD MAIDS COULEE, headwaters to mouth (Cutbank Creek)" Nitrate/Nitrite (Nitrite + Nitrate as N) 1990 B-1 5 10030202 Cut Bank Marias Lower Missouri Cut Bank - Two Medicine RIVER 17.6 MILES MT41L001_010 "OLD MAIDS COULEE, headwaters to mouth (Cutbank Creek)" "Phosphorus, Total" 1990 B-1 5 10030202 Cut Bank Marias Lower Missouri Cut Bank - Two Medicine RIVER 17.6 MILES MT41L001_040 "CUT BANK CREEK, Blackfeet Reservation boundary to mouth (Marias River)" Temperature 1990 B-2 5 10030202 Cut Bank Marias Lower Missouri Cut Bank - Two Medicine RIVER 21.1 MILES MT41L001_040 "CUT BANK CREEK, Blackfeet Reservation boundary to mouth (Marias River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 1988 B-2 5 10030202 Cut Bank Marias Lower Missouri Cut Bank - Two Medicine RIVER 21.1 MILES MT41M002_080 "BIRCH CREEK, Blacktail Creek to mouth (Two Medicine River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-1 5 10030201 Two Medicine Marias Lower Missouri Cut Bank - Two Medicine RIVER 37.2 MILES MT41M002_110 "DUPUYER CREEK, confluence of South Fork Dupuyer Creek and Middle Fork Dupuyer Creek to the mouth (Birch Creek)" Sedimentation/Siltation 2006 B-1 5 10030201 Two Medicine Marias Lower Missouri Cut Bank - Two Medicine RIVER 39.3 MILES MT41M002_110 "DUPUYER CREEK, confluence of South Fork Dupuyer Creek and Middle Fork Dupuyer Creek to the mouth (Birch Creek)" Temperature 1992 B-1 5 10030201 Two Medicine Marias Lower Missouri Cut Bank - Two Medicine RIVER 39.3 MILES MT41M002_110 "DUPUYER CREEK, confluence of South Fork Dupuyer Creek and Middle Fork Dupuyer Creek to the mouth (Birch Creek)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-1 5 10030201 Two Medicine Marias Lower Missouri Cut Bank - Two Medicine RIVER 39.3 MILES MT41P002_030 "PONDERA COULEE, headwaters to mouth (Marias River)" Salinity 1988 B-2 5 10030203 Marias Marias Lower Missouri Marias - Willow RIVER 136.0 MILES MT41P002_050 "CORRAL CREEK, headwaters to mouth (Cottonwood Creek)" "Phosphorus, Total" 2000 B-2 5 10030203 Marias Marias Lower Missouri Marias - Willow RIVER 23.0 MILES MT41P004_020 "EAGLE CREEK, headwaters to mouth (Lake Elwell (Tiber Reservoir))" "Nitrogen, Total" 2000 B-2 5 10030204 Willow Marias Lower Missouri Marias - Willow RIVER 52.7 MILES MT41P004_020 "EAGLE CREEK, headwaters to mouth (Lake Elwell (Tiber Reservoir))" "Phosphorus, Total" 2000 B-2 5 10030204 Willow Marias Lower Missouri Marias - Willow RIVER 52.7 MILES MT41P005_010 OILMONT WETLAND Arsenic 2000 B-2 5 10030204 Willow Marias Lower Missouri Marias - Willow FRESHWATER LAKE 21.0 ACRES MT41Q001_011 "MISSOURI RIVER, Sun River to Rainbow Dam" "Chromium, Total" 1992 B-2 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 7.0 MILES MT41Q001_011 "MISSOURI RIVER, Sun River to Rainbow Dam" Mercury 1992 B-2 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 7.0 MILES MT41Q001_011 "MISSOURI RIVER, Sun River to Rainbow Dam" Sedimentation/Siltation 1988 B-2 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 7.0 MILES MT41Q001_011 "MISSOURI RIVER, Sun River to Rainbow Dam" Selenium 1992 B-2 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 7.0 MILES MT41Q001_011 "MISSOURI RIVER, Sun River to Rainbow Dam" Turbidity 2000 B-2 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 7.0 MILES MT41Q001_011 "MISSOURI RIVER, Sun River to Rainbow Dam" Polychlorinated Biphenyls (PCBs) 2012 B-2 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 7.0 MILES MT41Q001_013 "MISSOURI RIVER, Rainbow Dam to Morony Dam" Arsenic 1992 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 9.1 MILES MT41Q001_013 "MISSOURI RIVER, Rainbow Dam to Morony Dam" Copper 1992 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 9.1 MILES MT41Q001_013 "MISSOURI RIVER, Rainbow Dam to Morony Dam" Sedimentation/Siltation 1988 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 9.1 MILES MT41Q001_013 "MISSOURI RIVER, Rainbow Dam to Morony Dam" Temperature 2000 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 9.1 MILES MT41Q001_013 "MISSOURI RIVER, Rainbow Dam to Morony Dam" Turbidity 2000 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 9.1 MILES MT41Q001_013 "MISSOURI RIVER, Rainbow Dam to Morony Dam" Polychlorinated Biphenyls (PCBs) 2012 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 9.1 MILES MT41Q001_014 "MISSOURI RIVER, Morony Dam to Marias River" Aluminum 1992 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 54.6 MILES MT41Q001_014 "MISSOURI RIVER, Morony Dam to Marias River" Arsenic 1992 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 54.6 MILES MT41Q001_014 "MISSOURI RIVER, Morony Dam to Marias River" Cadmium 1992 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 54.6 MILES MT41Q001_014 "MISSOURI RIVER, Morony Dam to Marias River" Copper 1992 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 54.6 MILES MT41Q001_014 "MISSOURI RIVER, Morony Dam to Marias River" Iron 1992 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 54.6 MILES MT41Q001_014 "MISSOURI RIVER, Morony Dam to Marias River" Lead 1992 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 54.6 MILES MT41Q001_014 "MISSOURI RIVER, Morony Dam to Marias River" Sedimentation/Siltation 1988 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 54.6 MILES MT41Q001_014 "MISSOURI RIVER, Morony Dam to Marias River" Zinc 1992 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 54.6 MILES MT41Q001_014 "MISSOURI RIVER, Morony Dam to Marias River" "Nitrogen, Total" 1988 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 54.6 MILES MT41Q001_014 "MISSOURI RIVER, Morony Dam to Marias River" "Phosphorus, Total" 1988 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 54.6 MILES MT41Q001_021 "MISSOURI RIVER, Little Prickly Pear Creek to Sheep Creek" Arsenic 1992 B-1 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 20.9 MILES MT41Q001_021 "MISSOURI RIVER, Little Prickly Pear Creek to Sheep Creek" Sedimentation/Siltation 1988 B-1 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 20.9 MILES MT41Q001_021 "MISSOURI RIVER, Little Prickly Pear Creek to Sheep Creek" "Nitrogen, Total" 1988 B-1 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 20.9 MILES MT41Q001_022 "MISSOURI RIVER, Sheep Creek to Sun River" Sedimentation/Siltation 1988 B-1 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri River RIVER 65.3 MILES MT41Q002_010 "LAKE CREEK, headwaters to mouth (Benton Lake)" Cadmium 1992 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Benton Lake RIVER 19.0 MILES MT41Q002_010 "LAKE CREEK, headwaters to mouth (Benton Lake)" Salinity 1992 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Benton Lake RIVER 19.0 MILES MT41Q002_010 "LAKE CREEK, headwaters to mouth (Benton Lake)" Sedimentation/Siltation 1992 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Benton Lake RIVER 19.0 MILES MT41Q002_010 "LAKE CREEK, headwaters to mouth (Benton Lake)" Selenium 1992 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Benton Lake RIVER 19.0 MILES MT41Q002_010 "LAKE CREEK, headwaters to mouth (Benton Lake)" Zinc 1992 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Benton Lake RIVER 19.0 MILES MT41Q002_020 "COTTONWOOD CREEK, 1 mile above Stockett to mouth (Sand Coulee Creek-Missouri River)" Arsenic 2016 B-1 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri Cascade RIVER 4.3 MILES MT41Q002_020 "COTTONWOOD CREEK, 1 mile above Stockett to mouth (Sand Coulee Creek-Missouri River)" Lead 2016 B-1 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri Cascade RIVER 4.3 MILES MT41Q002_020 "COTTONWOOD CREEK, 1 mile above Stockett to mouth (Sand Coulee Creek-Missouri River)" Copper 2016 B-1 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri Cascade RIVER 4.3 MILES MT41Q002_030 "NUMBER FIVE COULEE, headwaters to mouth (Cottonwood Creek)" Lead 1988 B-1 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri Cascade RIVER 13.7 MILES MT41Q002_040 "SAND COULEE CREEK, confluence with Cottonwood Creek to the mouth (Missouri River)" Lead 1988 B-1 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri Cascade RIVER 18.6 MILES MT41Q002_040 "SAND COULEE CREEK, confluence with Cottonwood Creek to the mouth (Missouri River)" Salinity 2000 B-1 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri Cascade RIVER 18.6 MILES MT41Q002_040 "SAND COULEE CREEK, confluence with Cottonwood Creek to the mouth (Missouri River)" Zinc 1988 B-1 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri Cascade RIVER 18.6 MILES MT41Q002_050 "BOX ELDER CREEK, Spring Creek to mouth (Missouri River)" Sedimentation/Siltation 1992 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri Choteau RIVER 17.5 MILES MT41Q002_050 "BOX ELDER CREEK, Spring Creek to mouth (Missouri River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Missouri Choteau RIVER 17.5 MILES MT41Q003_010 "DEARBORN RIVER, Falls Creek to mouth (Missouri River)" Temperature 1990 B-1 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Dearborn RIVER 48.3 MILES MT41Q005_020 BENTON LAKE Salinity 2006 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Benton Lake FRESHWATER LAKE " 5,345.1 " ACRES MT41Q005_020 BENTON LAKE Selenium 2000 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Benton Lake FRESHWATER LAKE " 5,345.1 " ACRES MT41Q005_020 BENTON LAKE Sulfate 2000 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Benton Lake FRESHWATER LAKE " 5,345.1 " ACRES MT41Q005_020 BENTON LAKE "Nitrogen, Total" 2000 B-3 5 10030102 Upper Missouri-Dearborn Upper Missouri Upper Missouri Benton Lake FRESHWATER LAKE " 5,345.1 " ACRES MT41R001_010 "COFFEE CREEK, headwaters to mouth (Arrow Creek)" Selenium 2006 C-3 5 10040102 Arrow Fort Peck Lake Lower Missouri Judith - Arrow RIVER 52.1 MILES MT41R001_010 "COFFEE CREEK, headwaters to mouth (Arrow Creek)" Total Dissolved Solids (TDS) 2006 C-3 5 10040102 Arrow Fort Peck Lake Lower Missouri Judith - Arrow RIVER 52.1 MILES MT41R001_010 "COFFEE CREEK, headwaters to mouth (Arrow Creek)" Nitrate/Nitrite (Nitrite + Nitrate as N) 1990 C-3 5 10040102 Arrow Fort Peck Lake Lower Missouri Judith - Arrow RIVER 52.1 MILES MT41R001_020 "ARROW CREEK, Surprise Creek to mouth (Missouri River)" Iron 2006 C-3 5 10040102 Arrow Fort Peck Lake Lower Missouri Judith - Arrow RIVER 69.7 MILES MT41S001_020 "JUDITH RIVER, Ross Fork to Big Spring Creek" Sedimentation/Siltation 1988 B-1 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 16.2 MILES MT41S001_020 "JUDITH RIVER, Ross Fork to Big Spring Creek" Nitrate/Nitrite (Nitrite + Nitrate as N) 1990 B-1 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 16.2 MILES MT41S002_010 "DRY WOLF CREEK, headwaters to mouth (Wolf Creek)" Salinity 1988 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 34.6 MILES MT41S002_010 "DRY WOLF CREEK, headwaters to mouth (Wolf Creek)" "Phosphorus, Total" 1990 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 34.6 MILES MT41S002_010 "DRY WOLF CREEK, headwaters to mouth (Wolf Creek)" "Nitrogen, Total" 1990 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 34.6 MILES MT41S002_010 "DRY WOLF CREEK, headwaters to mouth (Wolf Creek)" Nitrate/Nitrite (Nitrite + Nitrate as N) 1990 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 34.6 MILES MT41S002_020 "WOLF CREEK, Dry Wolf Creek to mouth (Judith River)" Iron 2006 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 45.3 MILES MT41S002_020 "WOLF CREEK, Dry Wolf Creek to mouth (Judith River)" Selenium 2006 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 45.3 MILES MT41S002_020 "WOLF CREEK, Dry Wolf Creek to mouth (Judith River)" Total Dissolved Solids (TDS) 1992 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 45.3 MILES MT41S002_030 "WARM SPRING CREEK, 5 miles upstream to mouth (Judith River)" Sedimentation/Siltation 1988 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 10.7 MILES MT41S002_030 "WARM SPRING CREEK, 5 miles upstream to mouth (Judith River)" "Phosphorus, Total" 2000 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 10.7 MILES MT41S002_030 "WARM SPRING CREEK, 5 miles upstream to mouth (Judith River)" "Nitrogen, Total" 2000 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 10.7 MILES MT41S002_030 "WARM SPRING CREEK, 5 miles upstream to mouth (Judith River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2000 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 10.7 MILES MT41S002_050 "SAGE CREEK, headwaters to mouth (Judith River)" Iron 2006 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 70.1 MILES MT41S002_050 "SAGE CREEK, headwaters to mouth (Judith River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 70.1 MILES MT41S002_050 "SAGE CREEK, headwaters to mouth (Judith River)" "Nitrogen, Total" 2006 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 70.1 MILES MT41S002_070 "ROSS FORK JUDITH RIVER, headwaters to mouth (Judith River)" Biochemical oxygen demand (BOD) 2006 B-1 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 64.2 MILES MT41S002_070 "ROSS FORK JUDITH RIVER, headwaters to mouth (Judith River)" Sedimentation/Siltation 1988 B-1 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 64.2 MILES MT41S002_070 "ROSS FORK JUDITH RIVER, headwaters to mouth (Judith River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-1 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 64.2 MILES MT41S002_080 "SOUTH FORK JUDITH RIVER, headwaters to mouth" Sedimentation/Siltation 1992 B-1 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 21.2 MILES MT41S002_100 "LAST CHANCE CREEK, headwaters to mouth (Moccasin Creek)" Cyanide 2004 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 6.2 MILES MT41S002_100 "LAST CHANCE CREEK, headwaters to mouth (Moccasin Creek)" Iron 2004 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 6.2 MILES MT41S002_100 "LAST CHANCE CREEK, headwaters to mouth (Moccasin Creek)" Selenium 2004 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 6.2 MILES MT41S002_100 "LAST CHANCE CREEK, headwaters to mouth (Moccasin Creek)" Thallium 2004 C-3 5 10040103 Judith Fort Peck Lake Lower Missouri Judith - Arrow RIVER 6.2 MILES MT41S004_040 "CASINO CREEK, headwaters to mouth (Big Spring Creek)" "Nitrogen, Total" 1992 B-1 5 10040103 Judith Fort Peck Lake Lower Missouri Big Springs RIVER 13.6 MILES MT41S004_040 "CASINO CREEK, headwaters to mouth (Big Spring Creek)" "Phosphorus, Total" 1992 B-1 5 10040103 Judith Fort Peck Lake Lower Missouri Big Springs RIVER 13.6 MILES MT41S004_052 "COTTONWOOD CREEK, county road at T14N R18E S18 to mouth (Big Spring Creek)" Dissolved Oxygen 1992 B-1 5 10040103 Judith Fort Peck Lake Lower Missouri Big Springs RIVER 20.0 MILES MT41S004_052 "COTTONWOOD CREEK, county road at T14N R18E S18 to mouth (Big Spring Creek)" Sedimentation/Siltation 1992 B-1 5 10040103 Judith Fort Peck Lake Lower Missouri Big Springs RIVER 20.0 MILES MT41S004_052 "COTTONWOOD CREEK, county road at T14N R18E S18 to mouth (Big Spring Creek)" Total Kjehldahl Nitrogen (TKN) 1992 B-1 5 10040103 Judith Fort Peck Lake Lower Missouri Big Springs RIVER 20.0 MILES MT41S004_052 "COTTONWOOD CREEK, county road at T14N R18E S18 to mouth (Big Spring Creek)" Nitrate/Nitrite (Nitrite + Nitrate as N) 1992 B-1 5 10040103 Judith Fort Peck Lake Lower Missouri Big Springs RIVER 20.0 MILES MT41S004_052 "COTTONWOOD CREEK, county road at T14N R18E S18 to mouth (Big Spring Creek)" "Nitrogen, Total" 1992 B-1 5 10040103 Judith Fort Peck Lake Lower Missouri Big Springs RIVER 20.0 MILES MT41S004_052 "COTTONWOOD CREEK, county road at T14N R18E S18 to mouth (Big Spring Creek)" "Phosphorus, Total" 1992 B-1 5 10040103 Judith Fort Peck Lake Lower Missouri Big Springs RIVER 20.0 MILES MT41T001_010 "MISSOURI RIVER, the Marias River to Bullwhacker Creek" Copper 2000 B-3 5 10040101 Bullwhacker-Dog Fort Peck Lake Lower Missouri Missouri River RIVER 102.1 MILES MT41T001_010 "MISSOURI RIVER, the Marias River to Bullwhacker Creek" Lead 2000 B-3 5 10040101 Bullwhacker-Dog Fort Peck Lake Lower Missouri Missouri River RIVER 102.1 MILES MT41T002_020 "DOG CREEK, Cutbank Creek to mouth (Missouri River)" Sedimentation/Siltation 2004 C-3 5 10040101 Bullwhacker-Dog Fort Peck Lake Lower Missouri Bullwhacker - Dog RIVER 26.0 MILES MT41T002_020 "DOG CREEK, Cutbank Creek to mouth (Missouri River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2004 C-3 5 10040101 Bullwhacker-Dog Fort Peck Lake Lower Missouri Bullwhacker - Dog RIVER 26.0 MILES MT41U001_011 "BELT CREEK, headwaters to Big Otter Creek" Salinity 2006 B-1 5 10030105 Belt Upper Missouri Upper Missouri Belt RIVER 50.8 MILES MT41U001_011 "BELT CREEK, headwaters to Big Otter Creek" Sedimentation/Siltation 1988 B-1 5 10030105 Belt Upper Missouri Upper Missouri Belt RIVER 50.8 MILES MT41U001_012 "BELT CREEK, Big Otter Creek to mouth (Missouri River)" Sedimentation/Siltation 1988 B-2 5 10030105 Belt Upper Missouri Upper Missouri Belt RIVER 39.4 MILES MT41U001_012 "BELT CREEK, Big Otter Creek to mouth (Missouri River)" Aluminum 2016 B-2 5 10030105 Belt Upper Missouri Upper Missouri Belt RIVER 39.4 MILES MT41U002_010 "CARPENTER CREEK, headwaters to mouth (Belt Creek)" Mercury 1988 B-1 5 10030105 Belt Upper Missouri Upper Missouri Belt RIVER 6.1 MILES MT41U002_030 "DRY FORK BELT CREEK, headwaters to mouth (Belt Creek)" Sedimentation/Siltation 2000 B-1 5 10030105 Belt Upper Missouri Upper Missouri Belt RIVER 18.9 MILES MT41U002_040 "LITTLE BELT CREEK, three miles upstream to mouth (Belt Creek)" Sedimentation/Siltation 1988 B-1 5 10030105 Belt Upper Missouri Upper Missouri Belt RIVER 3.2 MILES MT41U002_040 "LITTLE BELT CREEK, three miles upstream to mouth (Belt Creek)" "Phosphorus, Total" 1988 B-1 5 10030105 Belt Upper Missouri Upper Missouri Belt RIVER 3.2 MILES MT41U002_040 "LITTLE BELT CREEK, three miles upstream to mouth (Belt Creek)" "Nitrogen, Total" 1988 B-1 5 10030105 Belt Upper Missouri Upper Missouri Belt RIVER 3.2 MILES MT41U002_050 "BIG OTTER CREEK, headwaters to mouth (Belt Creek)" Sedimentation/Siltation 1996 B-1 5 10030105 Belt Upper Missouri Upper Missouri Belt RIVER 33.5 MILES MT41U002_050 "BIG OTTER CREEK, headwaters to mouth (Belt Creek)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2000 B-1 5 10030105 Belt Upper Missouri Upper Missouri Belt RIVER 33.5 MILES MT42B001_010 "TONGUE RIVER, Wyoming border to Tongue River Reservoir" Iron 2008 B-2 5 10090101 Upper Tongue Tongue Yellowstone Tongue RIVER 5.9 MILES MT42B002_031 "HANGING WOMAN CREEK, Stroud Creek to mouth (Tongue River)" Iron 1996 C-3 5 10090101 Upper Tongue Tongue Yellowstone Tongue RIVER 18.3 MILES MT42B002_031 "HANGING WOMAN CREEK, Stroud Creek to mouth (Tongue River)" Salinity 2008 C-3 5 10090101 Upper Tongue Tongue Yellowstone Tongue RIVER 18.3 MILES MT42B002_031 "HANGING WOMAN CREEK, Stroud Creek to mouth (Tongue River)" Sedimentation/Siltation 2000 C-3 5 10090101 Upper Tongue Tongue Yellowstone Tongue RIVER 18.3 MILES MT42B002_032 "HANGING WOMAN CREEK, Wyoming border to Stroud Creek" Salinity 1996 C-3 5 10090101 Upper Tongue Tongue Yellowstone Tongue RIVER 31.4 MILES MT42B003_010 TONGUE RIVER RESERVOIR Dissolved Oxygen 2008 B-2 5 10090101 Upper Tongue Tongue Yellowstone Tongue FRESHWATER LAKE " 2,158.5 " ACRES MT42B003_010 TONGUE RIVER RESERVOIR Sediment 2008 B-2 5 10090101 Upper Tongue Tongue Yellowstone Tongue FRESHWATER LAKE " 2,158.5 " ACRES MT42C001_011 "TONGUE RIVER, Twelve Mile Dam to mouth (Yellowstone River)" Cadmium 2008 B-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 20.9 MILES MT42C001_011 "TONGUE RIVER, Twelve Mile Dam to mouth (Yellowstone River)" Copper 2008 B-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 20.9 MILES MT42C001_011 "TONGUE RIVER, Twelve Mile Dam to mouth (Yellowstone River)" Iron 2008 B-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 20.9 MILES MT42C001_011 "TONGUE RIVER, Twelve Mile Dam to mouth (Yellowstone River)" Lead 2008 B-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 20.9 MILES MT42C001_011 "TONGUE RIVER, Twelve Mile Dam to mouth (Yellowstone River)" Nickel 2008 B-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 20.9 MILES MT42C001_011 "TONGUE RIVER, Twelve Mile Dam to mouth (Yellowstone River)" Salinity 2008 B-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 20.9 MILES MT42C001_011 "TONGUE RIVER, Twelve Mile Dam to mouth (Yellowstone River)" Sediment 2008 B-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 20.9 MILES MT42C001_011 "TONGUE RIVER, Twelve Mile Dam to mouth (Yellowstone River)" Zinc 2008 B-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 20.9 MILES MT42C001_013 "TONGUE RIVER, Hanging Woman Creek to Beaver Creek" Iron 1996 B-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 75.0 MILES MT42C001_013 "TONGUE RIVER, Hanging Woman Creek to Beaver Creek" Sediment 1996 B-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 75.0 MILES MT42C001_014 "TONGUE RIVER, Beaver Creek to Twelve Mile Dam, T6N R48E S29" Iron 1996 B-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 72.0 MILES MT42C001_014 "TONGUE RIVER, Beaver Creek to Twelve Mile Dam, T6N R48E S29" Sediment 1996 B-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 72.0 MILES MT42C002_020 "OTTER CREEK, headwaters to mouth (Tongue River)" Iron 1996 C-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 108.1 MILES MT42C002_020 "OTTER CREEK, headwaters to mouth (Tongue River)" Salinity 1996 C-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 108.1 MILES MT42C002_061 "PUMPKIN CREEK, headwaters to Little Pumpkin Creek" Temperature 1996 C-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 87.7 MILES MT42C002_061 "PUMPKIN CREEK, headwaters to Little Pumpkin Creek" Salinity 1996 C-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 87.7 MILES MT42C002_062 "PUMPKIN CREEK, Little Pumpkin Creek to the mouth (Tongue River)" Temperature 1996 C-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 92.2 MILES MT42C002_062 "PUMPKIN CREEK, Little Pumpkin Creek to the mouth (Tongue River)" Salinity 1996 C-3 5 10090102 Lower Tongue Tongue Yellowstone Tongue RIVER 92.2 MILES MT42I001_010 "LITTLE POWDER RIVER, Wyoming border to mouth (Powder River)" Salinity 1996 C-3 5 10090208 Little Powder Powder Yellowstone Powder RIVER 63.3 MILES MT42J001_010 "POWDER RIVER, Wyoming border to Little Powder River" Salinity 2008 C-3 5 10090207 Middle Powder Powder Yellowstone Powder RIVER 78.2 MILES MT42J003_011 "POWDER RIVER, Little Powder River to Mizpah Creek" Salinity 1996 C-3 5 10090209 Lower Powder Powder Yellowstone Powder RIVER 99.0 MILES MT42J003_012 "POWDER RIVER, Mizpah Creek to mouth (Yellowstone River)" Salinity 1996 C-3 5 10090209 Lower Powder Powder Yellowstone Powder RIVER 45.3 MILES MT42J004_010 "STUMP CREEK, headwaters to mouth (Powder River)" Salinity 2008 C-3 5 10090209 Lower Powder Powder Yellowstone Powder RIVER 29.8 MILES MT42J005_011 "MIZPAH CREEK, headwaters to Corral Creek" Salinity 2008 C-3 5 10090210 Mizpah Powder Yellowstone Powder RIVER 132.0 MILES MT42J005_012 "MIZPAH CREEK, Corral Creek to the mouth (Powder River)" Salinity 2010 C-3 5 10090210 Mizpah Powder Yellowstone Powder RIVER 23.0 MILES MT42K001_010 "YELLOWSTONE RIVER, the Cartersville Diversion Dam to Powder River" Copper 1992 B-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Yellowstone River RIVER 88.7 MILES MT42K001_010 "YELLOWSTONE RIVER, the Cartersville Diversion Dam to Powder River" Lead 1992 B-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Yellowstone River RIVER 88.7 MILES MT42K001_010 "YELLOWSTONE RIVER, the Cartersville Diversion Dam to Powder River" Sediment 1990 B-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Yellowstone River RIVER 88.7 MILES MT42K001_010 "YELLOWSTONE RIVER, the Cartersville Diversion Dam to Powder River" Total Dissolved Solids (TDS) 1990 B-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Yellowstone River RIVER 88.7 MILES MT42K001_010 "YELLOWSTONE RIVER, the Cartersville Diversion Dam to Powder River" Zinc 1992 B-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Yellowstone River RIVER 88.7 MILES MT42K001_010 "YELLOWSTONE RIVER, the Cartersville Diversion Dam to Powder River" pH 1990 B-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Yellowstone River RIVER 88.7 MILES MT42K001_010 "YELLOWSTONE RIVER, the Cartersville Diversion Dam to Powder River" Nitrate/Nitrite (Nitrite + Nitrate as N) 1990 B-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Yellowstone River RIVER 88.7 MILES MT42K002_020 "HARRIS CREEK, headwaters to mouth (Yellowstone River)" Sediment 1992 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 27.4 MILES MT42K002_020 "HARRIS CREEK, headwaters to mouth (Yellowstone River)" "Phosphorus, Total" 2006 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 27.4 MILES MT42K002_030 "SUNDAY CREEK, the North and South Forks to mouth (Yellowstone River)" Copper 2006 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 15.3 MILES MT42K002_030 "SUNDAY CREEK, the North and South Forks to mouth (Yellowstone River)" Iron 2006 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 15.3 MILES MT42K002_030 "SUNDAY CREEK, the North and South Forks to mouth (Yellowstone River)" Lead 2006 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 15.3 MILES MT42K002_030 "SUNDAY CREEK, the North and South Forks to mouth (Yellowstone River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 1990 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 15.3 MILES MT42K002_030 "SUNDAY CREEK, the North and South Forks to mouth (Yellowstone River)" "Nitrogen, Total" 1990 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 15.3 MILES MT42K002_030 "SUNDAY CREEK, the North and South Forks to mouth (Yellowstone River)" "Phosphorus, Total" 1990 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 15.3 MILES MT42K002_040 "MUSTER CREEK, headwaters to mouth (Yellowstone River)" Sediment 1992 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 31.4 MILES MT42K002_040 "MUSTER CREEK, headwaters to mouth (Yellowstone River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 1992 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 31.4 MILES MT42K002_040 "MUSTER CREEK, headwaters to mouth (Yellowstone River)" "Phosphorus, Total" 1992 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 31.4 MILES MT42K002_060 "DEADMAN CREEK, headwaters to mouth (North Fork Sunday Creek)" "Phosphorus, Total" 2006 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 17.3 MILES MT42K002_060 "DEADMAN CREEK, headwaters to mouth (North Fork Sunday Creek)" "Nitrogen, Total" 2006 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 17.3 MILES MT42K002_070 "STELLAR CREEK, headwaters to mouth (Little Porcupine Creek)" Cadmium 2006 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 43.0 MILES MT42K002_070 "STELLAR CREEK, headwaters to mouth (Little Porcupine Creek)" pH 2006 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 43.0 MILES MT42K002_070 "STELLAR CREEK, headwaters to mouth (Little Porcupine Creek)" "Phosphorus, Total" 2006 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 43.0 MILES MT42K002_080 "NORTH FORK SUNDAY CREEK, Custer/Rosebud County border to mouth (Sunday Creek)" Sedimentation/Siltation 1994 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 33.8 MILES MT42K002_080 "NORTH FORK SUNDAY CREEK, Custer/Rosebud County border to mouth (Sunday Creek)" Specific Conductivity 1994 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 33.8 MILES MT42K002_080 "NORTH FORK SUNDAY CREEK, Custer/Rosebud County border to mouth (Sunday Creek)" Total Dissolved Solids (TDS) 1994 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 33.8 MILES MT42K002_080 "NORTH FORK SUNDAY CREEK, Custer/Rosebud County border to mouth (Sunday Creek)" Sodium 1994 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 33.8 MILES MT42K002_090 "SARPY CREEK, Crow Indian Reservation Boundary to mouth (Yellowstone River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 89.4 MILES MT42K002_090 "SARPY CREEK, Crow Indian Reservation Boundary to mouth (Yellowstone River)" "Nitrogen, Total" 2006 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 89.4 MILES MT42K002_090 "SARPY CREEK, Crow Indian Reservation Boundary to mouth (Yellowstone River)" "Phosphorus, Total" 2006 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 89.4 MILES MT42K002_110 "EAST FORK ARMELLS CREEK, mine shops area (45.866, -106.638) to mouth (Armells Creek)" Specific Conductivity 1990 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 35.4 MILES MT42K002_110 "EAST FORK ARMELLS CREEK, mine shops area (45.866, -106.638) to mouth (Armells Creek)" Total Dissolved Solids (TDS) 1990 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 35.4 MILES MT42K002_110 "EAST FORK ARMELLS CREEK, mine shops area (45.866, -106.638) to mouth (Armells Creek)" Nitrate/Nitrite (Nitrite + Nitrate as N) 1994 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 35.4 MILES MT42K002_110 "EAST FORK ARMELLS CREEK, mine shops area (45.866, -106.638) to mouth (Armells Creek)" "Nitrogen, Total" 1994 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 35.4 MILES MT42K002_110 "EAST FORK ARMELLS CREEK, mine shops area (45.866, -106.638) to mouth (Armells Creek)" "Phosphorus, Total" 2018 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 35.4 MILES MT42K002_110 "EAST FORK ARMELLS CREEK, mine shops area (45.866, -106.638) to mouth (Armells Creek)" Iron 2018 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 35.4 MILES MT42K002_110 "EAST FORK ARMELLS CREEK, mine shops area (45.866, -106.638) to mouth (Armells Creek)" Aluminum 2018 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 35.4 MILES MT42K002_120 "WEST FORK ARMELLS CREEK, headwaters to mouth (Armells Creek)" Iron 2018 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 34.0 MILES MT42K002_120 "WEST FORK ARMELLS CREEK, headwaters to mouth (Armells Creek)" Aluminum 2018 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 34.0 MILES MT42K002_160 "LITTLE PORCUPINE CREEK, headwaters to mouth (Yellowstone River)" Total Dissolved Solids (TDS) 1990 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 118.8 MILES MT42K002_160 "LITTLE PORCUPINE CREEK, headwaters to mouth (Yellowstone River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 1990 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 118.8 MILES MT42K002_160 "LITTLE PORCUPINE CREEK, headwaters to mouth (Yellowstone River)" "Phosphorus, Total" 1990 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 118.8 MILES MT42K002_160 "LITTLE PORCUPINE CREEK, headwaters to mouth (Yellowstone River)" "Nitrogen, Total" 1990 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 118.8 MILES MT42K002_180 "ARMELLS CREEK, confluence of East and West Forks to mouth (Yellowstone River)" Iron 2018 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 28.8 MILES MT42K002_180 "ARMELLS CREEK, confluence of East and West Forks to mouth (Yellowstone River)" Aluminum 2018 C-3 5 10100001 Lower Yellowstone-Sunday Lower Yellowstone Yellowstone Middle Yellowstone Tributaries RIVER 28.8 MILES MT42L001_010 "PENNEL CREEK, headwaters to mouth (O'Fallon Creek)" Total Dissolved Solids (TDS) 1988 C-3 5 10100005 O'Fallon Lower Yellowstone Yellowstone O'Fallon RIVER 66.0 MILES MT42L001_020 "SANDSTONE CREEK, headwaters to mouth (O'Fallon Creek)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 C-3 5 10100005 O'Fallon Lower Yellowstone Yellowstone O'Fallon RIVER 72.8 MILES MT42L001_020 "SANDSTONE CREEK, headwaters to mouth (O'Fallon Creek)" "Nitrogen, Total" 2006 C-3 5 10100005 O'Fallon Lower Yellowstone Yellowstone O'Fallon RIVER 72.8 MILES MT42M001_011 "YELLOWSTONE RIVER, Lower Yellowstone Diversion Dam to North Dakota border" "Chromium, Total" 1992 B-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Yellowstone River RIVER 53.7 MILES MT42M001_011 "YELLOWSTONE RIVER, Lower Yellowstone Diversion Dam to North Dakota border" Copper 1992 B-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Yellowstone River RIVER 53.7 MILES MT42M001_011 "YELLOWSTONE RIVER, Lower Yellowstone Diversion Dam to North Dakota border" Lead 1992 B-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Yellowstone River RIVER 53.7 MILES MT42M001_011 "YELLOWSTONE RIVER, Lower Yellowstone Diversion Dam to North Dakota border" Sedimentation/Siltation 1988 B-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Yellowstone River RIVER 53.7 MILES MT42M001_011 "YELLOWSTONE RIVER, Lower Yellowstone Diversion Dam to North Dakota border" Total Dissolved Solids (TDS) 1988 B-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Yellowstone River RIVER 53.7 MILES MT42M001_011 "YELLOWSTONE RIVER, Lower Yellowstone Diversion Dam to North Dakota border" pH 1990 B-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Yellowstone River RIVER 53.7 MILES MT42M001_011 "YELLOWSTONE RIVER, Lower Yellowstone Diversion Dam to North Dakota border" "Nitrogen, Total" 1990 B-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Yellowstone River RIVER 53.7 MILES MT42M001_011 "YELLOWSTONE RIVER, Lower Yellowstone Diversion Dam to North Dakota border" "Phosphorus, Total" 1990 B-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Yellowstone River RIVER 53.7 MILES MT42M002_020 "FOURMILE CREEK, headwaters to North Dakota border" Total Dissolved Solids (TDS) 1988 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 29.7 MILES MT42M002_020 "FOURMILE CREEK, headwaters to North Dakota border" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 29.7 MILES MT42M002_020 "FOURMILE CREEK, headwaters to North Dakota border" "Nitrogen, Total" 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 29.7 MILES MT42M002_030 "FIRST HAY CREEK, headwaters to mouth (Yellowstone River)" Copper 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 33.4 MILES MT42M002_030 "FIRST HAY CREEK, headwaters to mouth (Yellowstone River)" Iron 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 33.4 MILES MT42M002_030 "FIRST HAY CREEK, headwaters to mouth (Yellowstone River)" Lead 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 33.4 MILES MT42M002_030 "FIRST HAY CREEK, headwaters to mouth (Yellowstone River)" Sediment 1988 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 33.4 MILES MT42M002_030 "FIRST HAY CREEK, headwaters to mouth (Yellowstone River)" Total Dissolved Solids (TDS) 1988 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 33.4 MILES MT42M002_030 "FIRST HAY CREEK, headwaters to mouth (Yellowstone River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 33.4 MILES MT42M002_030 "FIRST HAY CREEK, headwaters to mouth (Yellowstone River)" "Phosphorus, Total" 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 33.4 MILES MT42M002_030 "FIRST HAY CREEK, headwaters to mouth (Yellowstone River)" "Nitrogen, Total" 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 33.4 MILES MT42M002_040 "LONE TREE CREEK, confluence of North Fork to mouth (Yellowstone River)" Iron 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 17.3 MILES MT42M002_040 "LONE TREE CREEK, confluence of North Fork to mouth (Yellowstone River)" Sediment 1988 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 17.3 MILES MT42M002_040 "LONE TREE CREEK, confluence of North Fork to mouth (Yellowstone River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 17.3 MILES MT42M002_051 "FOX CREEK, headwaters to mouth (Yellowstone River), T22N R59E S19" Arsenic 1994 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 49.9 MILES MT42M002_051 "FOX CREEK, headwaters to mouth (Yellowstone River), T22N R59E S19" Lead 2006 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 49.9 MILES MT42M002_051 "FOX CREEK, headwaters to mouth (Yellowstone River), T22N R59E S19" Mercury 2006 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 49.9 MILES MT42M002_051 "FOX CREEK, headwaters to mouth (Yellowstone River), T22N R59E S19" Sediment 1988 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 49.9 MILES MT42M002_051 "FOX CREEK, headwaters to mouth (Yellowstone River), T22N R59E S19" Sulfate 1988 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 49.9 MILES MT42M002_051 "FOX CREEK, headwaters to mouth (Yellowstone River), T22N R59E S19" Total Dissolved Solids (TDS) 1988 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 49.9 MILES MT42M002_051 "FOX CREEK, headwaters to mouth (Yellowstone River), T22N R59E S19" Iron 2006 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 49.9 MILES MT42M002_051 "FOX CREEK, headwaters to mouth (Yellowstone River), T22N R59E S19" "Phosphorus, Total" 2006 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 49.9 MILES MT42M002_051 "FOX CREEK, headwaters to mouth (Yellowstone River), T22N R59E S19" "Nitrogen, Total" 2006 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 49.9 MILES MT42M002_052 "NORTH FORK FOX CREEK, headwaters to mouth (Fox Creek), T22N R58E S21" Arsenic 1994 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 20.3 MILES MT42M002_052 "NORTH FORK FOX CREEK, headwaters to mouth (Fox Creek), T22N R58E S21" Lead 2006 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 20.3 MILES MT42M002_052 "NORTH FORK FOX CREEK, headwaters to mouth (Fox Creek), T22N R58E S21" Mercury 2006 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 20.3 MILES MT42M002_052 "NORTH FORK FOX CREEK, headwaters to mouth (Fox Creek), T22N R58E S21" Sediment 1988 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 20.3 MILES MT42M002_052 "NORTH FORK FOX CREEK, headwaters to mouth (Fox Creek), T22N R58E S21" Sulfate 1988 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 20.3 MILES MT42M002_052 "NORTH FORK FOX CREEK, headwaters to mouth (Fox Creek), T22N R58E S21" Total Dissolved Solids (TDS) 1988 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 20.3 MILES MT42M002_052 "NORTH FORK FOX CREEK, headwaters to mouth (Fox Creek), T22N R58E S21" Iron 2006 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 20.3 MILES MT42M002_052 "NORTH FORK FOX CREEK, headwaters to mouth (Fox Creek), T22N R58E S21" "Phosphorus, Total" 2006 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 20.3 MILES MT42M002_052 "NORTH FORK FOX CREEK, headwaters to mouth (Fox Creek), T22N R58E S21" "Nitrogen, Total" 2006 B-2 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 20.3 MILES MT42M002_060 "O'BRIEN CREEK, North Dakota border to mouth (Yellowstone River)" Selenium 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 15.5 MILES MT42M002_060 "O'BRIEN CREEK, North Dakota border to mouth (Yellowstone River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 15.5 MILES MT42M002_070 "CRANE CREEK, headwaters to mouth (Yellowstone River, T21N R58E S23)" Sedimentation/Siltation 1988 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 24.3 MILES MT42M002_100 "COTTONWOOD CREEK, headwaters to mouth (Yellowstone River)" Cadmium 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 22.0 MILES MT42M002_100 "COTTONWOOD CREEK, headwaters to mouth (Yellowstone River)" Iron 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 22.0 MILES MT42M002_110 "BURNS CREEK, headwaters to mouth (Yellowstone River)" Iron 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 53.7 MILES MT42M002_110 "BURNS CREEK, headwaters to mouth (Yellowstone River)" Sediment 1992 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 53.7 MILES MT42M002_110 "BURNS CREEK, headwaters to mouth (Yellowstone River)" "Phosphorus, Total" 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 53.7 MILES MT42M002_110 "BURNS CREEK, headwaters to mouth (Yellowstone River)" "Nitrogen, Total" 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 53.7 MILES MT42M002_130 "GLENDIVE CREEK, headwaters to mouth (Yellowstone River)" Cadmium 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 55.9 MILES MT42M002_130 "GLENDIVE CREEK, headwaters to mouth (Yellowstone River)" "Chromium, Total" 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 55.9 MILES MT42M002_130 "GLENDIVE CREEK, headwaters to mouth (Yellowstone River)" Copper 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 55.9 MILES MT42M002_130 "GLENDIVE CREEK, headwaters to mouth (Yellowstone River)" Iron 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 55.9 MILES MT42M002_130 "GLENDIVE CREEK, headwaters to mouth (Yellowstone River)" Lead 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 55.9 MILES MT42M002_130 "GLENDIVE CREEK, headwaters to mouth (Yellowstone River)" Nickel 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 55.9 MILES MT42M002_130 "GLENDIVE CREEK, headwaters to mouth (Yellowstone River)" Selenium 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 55.9 MILES MT42M002_130 "GLENDIVE CREEK, headwaters to mouth (Yellowstone River)" Sediment 1990 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 55.9 MILES MT42M002_130 "GLENDIVE CREEK, headwaters to mouth (Yellowstone River)" Zinc 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 55.9 MILES MT42M002_141 "CEDAR CREEK, 26 miles upstream to mouth (Yellowstone River)" Arsenic 2000 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 27.5 MILES MT42M002_141 "CEDAR CREEK, 26 miles upstream to mouth (Yellowstone River)" Copper 2000 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 27.5 MILES MT42M002_141 "CEDAR CREEK, 26 miles upstream to mouth (Yellowstone River)" Iron 2000 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 27.5 MILES MT42M002_141 "CEDAR CREEK, 26 miles upstream to mouth (Yellowstone River)" Lead 2000 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 27.5 MILES MT42M002_142 "CEDAR CREEK, tributary confluence at 12N 57E S35 to tributary confluence at 13N 56E S27" Copper 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 20.1 MILES MT42M002_142 "CEDAR CREEK, tributary confluence at 12N 57E S35 to tributary confluence at 13N 56E S27" Iron 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 20.1 MILES MT42M002_142 "CEDAR CREEK, tributary confluence at 12N 57E S35 to tributary confluence at 13N 56E S27" Lead 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 20.1 MILES MT42M002_142 "CEDAR CREEK, tributary confluence at 12N 57E S35 to tributary confluence at 13N 56E S27" Selenium 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 20.1 MILES MT42M002_150 "CABIN CREEK, headwaters to mouth (Yellowstone River)" Dissolved Oxygen 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 102.5 MILES MT42M002_150 "CABIN CREEK, headwaters to mouth (Yellowstone River)" Sedimentation/Siltation 1994 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 102.5 MILES MT42M002_150 "CABIN CREEK, headwaters to mouth (Yellowstone River)" "Nitrogen, Total" 1990 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 102.5 MILES MT42M002_180 "SEARS CREEK, headwaters to mouth (Yellowstone River)" Copper 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 15.2 MILES MT42M002_180 "SEARS CREEK, headwaters to mouth (Yellowstone River)" Iron 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 15.2 MILES MT42M002_180 "SEARS CREEK, headwaters to mouth (Yellowstone River)" Lead 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 15.2 MILES MT42M002_180 "SEARS CREEK, headwaters to mouth (Yellowstone River)" Sediment 2006 C-3 5 10100004 Lower Yellowstone Lower Yellowstone Yellowstone Lower Yellowstone RIVER 15.2 MILES MT43A002_020 "ANTELOPE CREEK, headwaters to mouth (Shields River)" Sediment 1992 B-1 5 10070003 Shields Upper Yellowstone Yellowstone Shields RIVER 10.4 MILES MT43B001_010 "YELLOWSTONE RIVER, Yellowstone Park Boundary to Reese Creek" Arsenic 1992 B-1 5 10070001 Yellowstone Headwaters Upper Yellowstone Yellowstone Yellowstone River RIVER 4.8 MILES MT43B001_010 "YELLOWSTONE RIVER, Yellowstone Park Boundary to Reese Creek" Copper 1992 B-1 5 10070001 Yellowstone Headwaters Upper Yellowstone Yellowstone Yellowstone River RIVER 4.8 MILES MT43B001_010 "YELLOWSTONE RIVER, Yellowstone Park Boundary to Reese Creek" Lead 1992 B-1 5 10070001 Yellowstone Headwaters Upper Yellowstone Yellowstone Yellowstone River RIVER 4.8 MILES MT43B001_010 "YELLOWSTONE RIVER, Yellowstone Park Boundary to Reese Creek" "Ammonia, Total" 1990 B-1 5 10070001 Yellowstone Headwaters Upper Yellowstone Yellowstone Yellowstone River RIVER 4.8 MILES MT43B001_010 "YELLOWSTONE RIVER, Yellowstone Park Boundary to Reese Creek" Sedimentation/Siltation 1990 B-1 5 10070001 Yellowstone Headwaters Upper Yellowstone Yellowstone Yellowstone River RIVER 4.8 MILES MT43B001_010 "YELLOWSTONE RIVER, Yellowstone Park Boundary to Reese Creek" Nitrate/Nitrite (Nitrite + Nitrate as N) 1990 B-1 5 10070001 Yellowstone Headwaters Upper Yellowstone Yellowstone Yellowstone River RIVER 4.8 MILES MT43B001_011 "YELLOWSTONE RIVER, Wyoming border to Yellowstone National Park Boundary" "Ammonia, Un-ionized" 2006 A-1 5 10070001 Yellowstone Headwaters Upper Yellowstone Yellowstone Yellowstone River RIVER 8.7 MILES MT43B001_011 "YELLOWSTONE RIVER, Wyoming border to Yellowstone National Park Boundary" Arsenic 1992 A-1 5 10070001 Yellowstone Headwaters Upper Yellowstone Yellowstone Yellowstone River RIVER 8.7 MILES MT43B001_011 "YELLOWSTONE RIVER, Wyoming border to Yellowstone National Park Boundary" Copper 1992 A-1 5 10070001 Yellowstone Headwaters Upper Yellowstone Yellowstone Yellowstone River RIVER 8.7 MILES MT43B001_011 "YELLOWSTONE RIVER, Wyoming border to Yellowstone National Park Boundary" Sedimentation/Siltation 1988 A-1 5 10070001 Yellowstone Headwaters Upper Yellowstone Yellowstone Yellowstone River RIVER 8.7 MILES MT43B001_011 "YELLOWSTONE RIVER, Wyoming border to Yellowstone National Park Boundary" Nitrate/Nitrite (Nitrite + Nitrate as N) 1988 A-1 5 10070001 Yellowstone Headwaters Upper Yellowstone Yellowstone Yellowstone River RIVER 8.7 MILES MT43B002_021 "BEAR CREEK, 1/2 mile below Jardine Mine to mouth (Yellowstone River)" Temperature 2002 B-1 5 10070001 Yellowstone Headwaters Upper Yellowstone Yellowstone Paradise RIVER 3.0 MILES MT43B004_012 "OTTER CREEK, headwaters to 2 mi downstream of Highway 191 bridge" Sedimentation/Siltation 1996 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Yellowstone - Sweet Grass RIVER 24.5 MILES MT43B004_022 "BIG TIMBER CREEK, headwaters downstream to Swamp Creek" Arsenic 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Yellowstone - Sweet Grass RIVER 26.8 MILES MT43B004_022 "BIG TIMBER CREEK, headwaters downstream to Swamp Creek" Cadmium 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Yellowstone - Sweet Grass RIVER 26.8 MILES MT43B004_022 "BIG TIMBER CREEK, headwaters downstream to Swamp Creek" Copper 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Yellowstone - Sweet Grass RIVER 26.8 MILES MT43B004_022 "BIG TIMBER CREEK, headwaters downstream to Swamp Creek" Iron 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Yellowstone - Sweet Grass RIVER 26.8 MILES MT43B004_022 "BIG TIMBER CREEK, headwaters downstream to Swamp Creek" Lead 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Yellowstone - Sweet Grass RIVER 26.8 MILES MT43B004_022 "BIG TIMBER CREEK, headwaters downstream to Swamp Creek" Manganese 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Yellowstone - Sweet Grass RIVER 26.8 MILES MT43B004_022 "BIG TIMBER CREEK, headwaters downstream to Swamp Creek" Nickel 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Yellowstone - Sweet Grass RIVER 26.8 MILES MT43B004_022 "BIG TIMBER CREEK, headwaters downstream to Swamp Creek" Sedimentation/Siltation 1992 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Yellowstone - Sweet Grass RIVER 26.8 MILES MT43B004_022 "BIG TIMBER CREEK, headwaters downstream to Swamp Creek" Selenium 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Yellowstone - Sweet Grass RIVER 26.8 MILES MT43B004_042 "UPPER DEER CREEK, headwaters to Cartwright Gulch" Sediment 1996 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Yellowstone - Sweet Grass RIVER 16.6 MILES MT43B004_051 "BILLMAN CREEK, 1.3 miles upstream to mouth (Yellowstone River)" Sedimentation/Siltation 1992 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Paradise RIVER 1.4 MILES MT43B004_051 "BILLMAN CREEK, 1.3 miles upstream to mouth (Yellowstone River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Paradise RIVER 1.4 MILES MT43B004_052 "BILLMAN CREEK, headwaters to 1.3 miles above mouth (Yellowstone River)" Combined Biota/Habitat Bioassessments 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Paradise RIVER 13.4 MILES MT43B004_052 "BILLMAN CREEK, headwaters to 1.3 miles above mouth (Yellowstone River)" Sedimentation/Siltation 1992 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Paradise RIVER 13.4 MILES MT43B004_052 "BILLMAN CREEK, headwaters to 1.3 miles above mouth (Yellowstone River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Paradise RIVER 13.4 MILES MT43B004_061 "TOM MINER CREEK, Tepee Creek to mouth (Yellowstone River)" Temperature 2002 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Paradise RIVER 0.7 MILES MT43B004_102 "SIX MILE CREEK, Absaroka-Beartooth Wilderness boundary to National Forest boundary" Sedimentation/Siltation 2000 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Paradise RIVER 2.5 MILES MT43B004_131 "BOULDER RIVER, Clayton Ditch to mouth (Yellowstone River)" Silver 2004 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Boulder - Big Timber RIVER 5.5 MILES MT43B004_132 "BOULDER RIVER, Natural Bridge and Falls (T3S R12E S26) to Clayton Ditch (T1N R14E S34)" "Chromium, Total" 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Boulder - Big Timber RIVER 27.8 MILES MT43B004_132 "BOULDER RIVER, Natural Bridge and Falls (T3S R12E S26) to Clayton Ditch (T1N R14E S34)" Nickel 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Boulder - Big Timber RIVER 27.8 MILES MT43B004_132 "BOULDER RIVER, Natural Bridge and Falls (T3S R12E S26) to Clayton Ditch (T1N R14E S34)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Boulder - Big Timber RIVER 27.8 MILES MT43B004_132 "BOULDER RIVER, Natural Bridge and Falls (T3S R12E S26) to Clayton Ditch (T1N R14E S34)" "Nitrogen, Total" 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Boulder - Big Timber RIVER 27.8 MILES MT43B004_133 "BOULDER RIVER, confluence of the East Fork Boulder River to Natural bridge and Falls (T35 R12E S26)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Boulder - Big Timber RIVER 24.1 MILES MT43B004_133 "BOULDER RIVER, confluence of the East Fork Boulder River to Natural bridge and Falls (T35 R12E S26)" "Phosphorus, Total" 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Boulder - Big Timber RIVER 24.1 MILES MT43B004_133 "BOULDER RIVER, confluence of the East Fork Boulder River to Natural bridge and Falls (T35 R12E S26)" "Nitrogen, Total" 2006 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Boulder - Big Timber RIVER 24.1 MILES MT43B004_141 "EAST BOULDER RIVER, Elk Creek to mouth (Boulder River)" Sedimentation/Siltation 2000 B-1 5 10070002 Upper Yellowstone Upper Yellowstone Yellowstone Boulder - Big Timber RIVER 3.1 MILES MT43C001_020 "STILLWATER RIVER, Forest Service Boundary to the mouth (Yellowstone River), T2S R20E S20" Cadmium 2006 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 45.6 MILES MT43C001_020 "STILLWATER RIVER, Forest Service Boundary to the mouth (Yellowstone River), T2S R20E S20" "Chromium, Total" 2006 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 45.6 MILES MT43C001_020 "STILLWATER RIVER, Forest Service Boundary to the mouth (Yellowstone River), T2S R20E S20" Copper 2006 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 45.6 MILES MT43C001_020 "STILLWATER RIVER, Forest Service Boundary to the mouth (Yellowstone River), T2S R20E S20" Cyanide 2006 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 45.6 MILES MT43C001_020 "STILLWATER RIVER, Forest Service Boundary to the mouth (Yellowstone River), T2S R20E S20" Mercury 2006 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 45.6 MILES MT43C001_020 "STILLWATER RIVER, Forest Service Boundary to the mouth (Yellowstone River), T2S R20E S20" Nickel 2006 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 45.6 MILES MT43C001_020 "STILLWATER RIVER, Forest Service Boundary to the mouth (Yellowstone River), T2S R20E S20" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 45.6 MILES MT43C002_010 "LODGEPOLE CREEK, headwaters to mouth (Castle Creek)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 5.9 MILES MT43C002_030 "CASTLE CREEK, headwaters to the mouth (Limestone Creek), T4S R15E S29" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 8.3 MILES MT43C002_041 "GROVE CREEK, confluence of South Fork Grove Creek, T4S R18E S13 to the mouth (Stillwater River), T3S R18E S34" Sedimentation/Siltation 1992 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 5.2 MILES MT43C002_041 "GROVE CREEK, confluence of South Fork Grove Creek, T4S R18E S13 to the mouth (Stillwater River), T3S R18E S34" "Phosphorus, Total" 2006 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 5.2 MILES MT43C002_050 "FISHTAIL CREEK, headwaters to mouth (West Rosebud Creek)" Iron 2006 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 14.8 MILES MT43C002_050 "FISHTAIL CREEK, headwaters to mouth (West Rosebud Creek)" Lead 2006 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 14.8 MILES MT43C002_070 "JOE HILL CREEK, headwaters to mouth (Stillwater River)" Sedimentation/Siltation 1992 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 13.2 MILES MT43C002_081 "BUTCHER CREEK, highway 78 to mouth (Rosebud Creek)" Sediment 1996 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 22.0 MILES MT43C002_082 "BUTCHER CREEK, headwaters to highway 78" Sedimentation/Siltation 1996 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 5.0 MILES MT43C002_082 "BUTCHER CREEK, headwaters to highway 78" "Phosphorus, Total" 1996 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 5.0 MILES MT43C002_090 "WEST ROSEBUD CREEK, Absaroka-Beartooth Wilderness boundary to mouth (Rosebud Creek)" Benthic Macroinvertebrates 2006 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 31.8 MILES MT43C002_100 "ROSEBUD CREEK, East and West Branches to mouth (Stillwater River)" Benthic Macroinvertebrates 2006 B-1 5 10070005 Stillwater Upper Yellowstone Yellowstone Stillwater - Columbus RIVER 3.9 MILES MT43D001_011 "CLARKS FORK YELLOWSTONE RIVER, Bridger Creek to mouth (Yellowstone River)" Copper 1992 B-2 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 43.3 MILES MT43D001_011 "CLARKS FORK YELLOWSTONE RIVER, Bridger Creek to mouth (Yellowstone River)" Iron 1992 B-2 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 43.3 MILES MT43D001_011 "CLARKS FORK YELLOWSTONE RIVER, Bridger Creek to mouth (Yellowstone River)" Lead 1992 B-2 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 43.3 MILES MT43D001_011 "CLARKS FORK YELLOWSTONE RIVER, Bridger Creek to mouth (Yellowstone River)" Mercury 1992 B-2 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 43.3 MILES MT43D001_011 "CLARKS FORK YELLOWSTONE RIVER, Bridger Creek to mouth (Yellowstone River)" "Ammonia, Total" 1990 B-2 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 43.3 MILES MT43D001_011 "CLARKS FORK YELLOWSTONE RIVER, Bridger Creek to mouth (Yellowstone River)" Sediment 1990 B-2 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 43.3 MILES MT43D001_011 "CLARKS FORK YELLOWSTONE RIVER, Bridger Creek to mouth (Yellowstone River)" Temperature 1990 B-2 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 43.3 MILES MT43D001_011 "CLARKS FORK YELLOWSTONE RIVER, Bridger Creek to mouth (Yellowstone River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 1990 B-2 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 43.3 MILES MT43D001_011 "CLARKS FORK YELLOWSTONE RIVER, Bridger Creek to mouth (Yellowstone River)" "Phosphorus, Total" 1990 B-2 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 43.3 MILES MT43D001_011 "CLARKS FORK YELLOWSTONE RIVER, Bridger Creek to mouth (Yellowstone River)" "Nitrogen, Total" 1990 B-2 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 43.3 MILES MT43D002_010 "ELBOW CREEK, headwaters to mouth (Clarks Fork)" Sedimentation/Siltation 1990 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 38.6 MILES MT43D002_010 "ELBOW CREEK, headwaters to mouth (Clarks Fork)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 38.6 MILES MT43D002_010 "ELBOW CREEK, headwaters to mouth (Clarks Fork)" "Nitrogen, Total" 2006 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 38.6 MILES MT43D002_020 "BEAR CREEK, headwaters to mouth (Clarks Fork)" Iron 1988 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 21.1 MILES MT43D002_020 "BEAR CREEK, headwaters to mouth (Clarks Fork)" Sedimentation/Siltation 1988 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 21.1 MILES MT43D002_020 "BEAR CREEK, headwaters to mouth (Clarks Fork)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 21.1 MILES MT43D002_020 "BEAR CREEK, headwaters to mouth (Clarks Fork)" "Phosphorus, Total" 2006 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 21.1 MILES MT43D002_031 "BLUEWATER CREEK, unnamed tributary at T6N R24E S7 NWNE to mouth (Clarks Fork Yellowstone River)" Sedimentation/Siltation 1988 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 11.4 MILES MT43D002_031 "BLUEWATER CREEK, unnamed tributary at T6N R24E S7 NWNE to mouth (Clarks Fork Yellowstone River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 11.4 MILES MT43D002_031 "BLUEWATER CREEK, unnamed tributary at T6N R24E S7 NWNE to mouth (Clarks Fork Yellowstone River)" "Phosphorus, Total" 2006 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 11.4 MILES MT43D002_060 "RED LODGE CREEK, Cooney Reservoir to mouth (Rock Creek)" Organic Enrichment 2000 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 12.1 MILES MT43D002_070 "WILLOW CREEK, headwaters to mouth (Cooney Reservoir)" Sedimentation/Siltation 1990 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 36.5 MILES MT43D002_080 "WEST RED LODGE CREEK, Absaroka-Beartooth Wilderness boundary to mouth (Red Lodge Creek)" Sedimentation/Siltation 1992 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 14.4 MILES MT43D002_100 "SILVERTIP CREEK, Wyoming border to mouth (Clarks Fork Yellowstone River)" Dissolved Oxygen 2006 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 21.8 MILES MT43D002_100 "SILVERTIP CREEK, Wyoming border to mouth (Clarks Fork Yellowstone River)" Sediment 1990 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 21.8 MILES MT43D002_100 "SILVERTIP CREEK, Wyoming border to mouth (Clarks Fork Yellowstone River)" Specific Conductivity 1990 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 21.8 MILES MT43D002_100 "SILVERTIP CREEK, Wyoming border to mouth (Clarks Fork Yellowstone River)" Temperature 1996 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 21.8 MILES MT43D002_100 "SILVERTIP CREEK, Wyoming border to mouth (Clarks Fork Yellowstone River)" Total Dissolved Solids (TDS) 1990 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 21.8 MILES MT43D002_100 "SILVERTIP CREEK, Wyoming border to mouth (Clarks Fork Yellowstone River)" Turbidity 2006 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 21.8 MILES MT43D002_100 "SILVERTIP CREEK, Wyoming border to mouth (Clarks Fork Yellowstone River)" Polycyclic Aromatic Hydrocarbons (PAHs) (Aquatic Ecosystems) 2006 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 21.8 MILES MT43D002_100 "SILVERTIP CREEK, Wyoming border to mouth (Clarks Fork Yellowstone River)" "Phosphorus, Total" 1990 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 21.8 MILES MT43D002_100 "SILVERTIP CREEK, Wyoming border to mouth (Clarks Fork Yellowstone River)" "Nitrogen, Total" 1990 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 21.8 MILES MT43D002_140 "COTTONWOOD CREEK, headwaters to the mouth (Clarks Fork of Yellowstone), T3S R24E S24" Dissolved Oxygen 2006 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 19.6 MILES MT43D002_140 "COTTONWOOD CREEK, headwaters to the mouth (Clarks Fork of Yellowstone), T3S R24E S24" Sediment 1992 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 19.6 MILES MT43D002_180 "SOUTH FORK BRIDGER CREEK, Headwaters to mouth (Bridger Creek)" Arsenic 2006 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 9.4 MILES MT43D002_180 "SOUTH FORK BRIDGER CREEK, Headwaters to mouth (Bridger Creek)" Iron 2006 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 9.4 MILES MT43D002_180 "SOUTH FORK BRIDGER CREEK, Headwaters to mouth (Bridger Creek)" Sedimentation/Siltation 1994 B-1 5 10070006 Clarks Fork Yellowstone Upper Yellowstone Yellowstone Clarks Fork Yellowstone RIVER 9.4 MILES MT43E001_010 "PRYOR CREEK, Interstate 90 bridge to mouth (Yellowstone River)" Benthic Macroinvertebrates 2006 C-3 5 10070008 Pryor Upper Yellowstone Yellowstone Yellowstone - Lower Bighorn RIVER 15.0 MILES MT43E001_011 "PRYOR CREEK, Crow Reservation Boundary to Interstate 90 bridge" Sedimentation/Siltation 1990 B-1 5 10070008 Pryor Upper Yellowstone Yellowstone Yellowstone - Lower Bighorn RIVER 2.9 MILES MT43F001_010 "YELLOWSTONE RIVER, City of Billings PWS to Huntley Diversion Dam" Arsenic 2008 B-3 5 10070007 Upper Yellowstone-Pompeys Pillar Upper Yellowstone Yellowstone Yellowstone River RIVER 10.6 MILES MT43F001_010 "YELLOWSTONE RIVER, City of Billings PWS to Huntley Diversion Dam" Benthic Macroinvertebrates 2008 B-3 5 10070007 Upper Yellowstone-Pompeys Pillar Upper Yellowstone Yellowstone Yellowstone River RIVER 10.6 MILES MT43F001_010 "YELLOWSTONE RIVER, City of Billings PWS to Huntley Diversion Dam" Dissolved Oxygen 2008 B-3 5 10070007 Upper Yellowstone-Pompeys Pillar Upper Yellowstone Yellowstone Yellowstone River RIVER 10.6 MILES MT43F001_010 "YELLOWSTONE RIVER, City of Billings PWS to Huntley Diversion Dam" Sediment 2008 B-3 5 10070007 Upper Yellowstone-Pompeys Pillar Upper Yellowstone Yellowstone Yellowstone River RIVER 10.6 MILES MT43F001_010 "YELLOWSTONE RIVER, City of Billings PWS to Huntley Diversion Dam" Eutrophication 2008 B-3 5 10070007 Upper Yellowstone-Pompeys Pillar Upper Yellowstone Yellowstone Yellowstone River RIVER 10.6 MILES MT43F001_010 "YELLOWSTONE RIVER, City of Billings PWS to Huntley Diversion Dam" Oil and Grease 2012 B-3 5 10070007 Upper Yellowstone-Pompeys Pillar Upper Yellowstone Yellowstone Yellowstone River RIVER 10.6 MILES MT43F001_011 "YELLOWSTONE RIVER, City of Laurel PWS to City of Billings PWS" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 B-2 5 10070004 Upper Yellowstone-Lake Basin Upper Yellowstone Yellowstone Yellowstone River RIVER 19.4 MILES MT43F001_011 "YELLOWSTONE RIVER, City of Laurel PWS to City of Billings PWS" Oil and Grease 2012 B-2 5 10070004 Upper Yellowstone-Lake Basin Upper Yellowstone Yellowstone Yellowstone River RIVER 19.4 MILES MT43F002_010 "DUCK CREEK, headwaters to mouth (Yellowstone River)" Sedimentation/Siltation 1996 B-2 5 10070004 Upper Yellowstone-Lake Basin Upper Yellowstone Yellowstone Yellowstone - Sweet Grass RIVER 13.7 MILES MT43F002_022 "CANYON CREEK, headwaters to highway 532" Dissolved Oxygen 2006 B-2 5 10070004 Upper Yellowstone-Lake Basin Upper Yellowstone Yellowstone Yellowstone - Sweet Grass RIVER 29.7 MILES MT43F002_022 "CANYON CREEK, headwaters to highway 532" Sedimentation/Siltation 2006 B-2 5 10070004 Upper Yellowstone-Lake Basin Upper Yellowstone Yellowstone Yellowstone - Sweet Grass RIVER 29.7 MILES MT43F002_040 "VALLEY CREEK, headwaters to mouth (Yellowstone River)" Benthic Macroinvertebrates 2006 B-2 5 10070004 Upper Yellowstone-Lake Basin Upper Yellowstone Yellowstone Yellowstone - Sweet Grass RIVER 14.8 MILES MT43F002_040 "VALLEY CREEK, headwaters to mouth (Yellowstone River)" Dissolved Oxygen 2006 B-2 5 10070004 Upper Yellowstone-Lake Basin Upper Yellowstone Yellowstone Yellowstone - Sweet Grass RIVER 14.8 MILES MT43F002_040 "VALLEY CREEK, headwaters to mouth (Yellowstone River)" Sedimentation/Siltation 1992 B-2 5 10070004 Upper Yellowstone-Lake Basin Upper Yellowstone Yellowstone Yellowstone - Sweet Grass RIVER 14.8 MILES MT43F003_010 BIG LAKE Salinity 2000 B-2 5 10070004 Upper Yellowstone-Lake Basin Upper Yellowstone Yellowstone Lake Basin - Spidel FRESHWATER LAKE " 2,583.0 " ACRES MT43F003_030 HALFBREED LAKE Salinity 2002 B-2 5 10070004 Upper Yellowstone-Lake Basin Upper Yellowstone Yellowstone Lake Basin - Spidel FRESHWATER LAKE 211.0 ACRES MT43Q001_011 "YELLOWSTONE RIVER, Huntley Diversion Dam to mouth of Big Horn River" "Ammonia, Un-ionized" 1996 B-3 5 10070007 Upper Yellowstone-Pompeys Pillar Upper Yellowstone Yellowstone Yellowstone River RIVER 58.3 MILES MT43Q001_011 "YELLOWSTONE RIVER, Huntley Diversion Dam to mouth of Big Horn River" Sedimentation/Siltation 1988 B-3 5 10070007 Upper Yellowstone-Pompeys Pillar Upper Yellowstone Yellowstone Yellowstone River RIVER 58.3 MILES MT43Q001_011 "YELLOWSTONE RIVER, Huntley Diversion Dam to mouth of Big Horn River" Total Dissolved Solids (TDS) 1988 B-3 5 10070007 Upper Yellowstone-Pompeys Pillar Upper Yellowstone Yellowstone Yellowstone River RIVER 58.3 MILES MT43Q001_011 "YELLOWSTONE RIVER, Huntley Diversion Dam to mouth of Big Horn River" Oil and Grease 2012 B-3 5 10070007 Upper Yellowstone-Pompeys Pillar Upper Yellowstone Yellowstone Yellowstone River RIVER 58.3 MILES MT43Q002_010 "FLY CREEK, Crow Indian Reservation boundary to mouth (Yellowstone River)" Dissolved Oxygen 2006 C-3 5 10070007 Upper Yellowstone-Pompeys Pillar Upper Yellowstone Yellowstone Yellowstone - Lower Bighorn RIVER 55.7 MILES MT43Q002_010 "FLY CREEK, Crow Indian Reservation boundary to mouth (Yellowstone River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2006 C-3 5 10070007 Upper Yellowstone-Pompeys Pillar Upper Yellowstone Yellowstone Yellowstone - Lower Bighorn RIVER 55.7 MILES MT43Q002_010 "FLY CREEK, Crow Indian Reservation boundary to mouth (Yellowstone River)" "Nitrogen, Total" 2006 C-3 5 10070007 Upper Yellowstone-Pompeys Pillar Upper Yellowstone Yellowstone Yellowstone - Lower Bighorn RIVER 55.7 MILES MT43Q003_010 SPIDEL WATERFOWL PRODUCTION AREA Salinity 2000 B-1 5 10070007 Upper Yellowstone-Pompeys Pillar Upper Yellowstone Yellowstone Lake Basin - Spidel FRESHWATER LAKE 659.8 ACRES MT43Q003_010 SPIDEL WATERFOWL PRODUCTION AREA Selenium 2000 B-1 5 10070007 Upper Yellowstone-Pompeys Pillar Upper Yellowstone Yellowstone Lake Basin - Spidel FRESHWATER LAKE 659.8 ACRES MT43R001_010 "BIGHORN RIVER, Crow Indian Res. Boundary to mouth (Yellowstone River)" Lead 1996 B-2 5 10080015 Lower Bighorn Big Horn Yellowstone Yellowstone - Lower Bighorn RIVER 40.0 MILES MT43R001_010 "BIGHORN RIVER, Crow Indian Res. Boundary to mouth (Yellowstone River)" Mercury 1996 B-2 5 10080015 Lower Bighorn Big Horn Yellowstone Yellowstone - Lower Bighorn RIVER 40.0 MILES MT43R002_010 "TULLOCK CREEK, Crow Indian Reservation Boundary to mouth (Bighorn River)" Iron 1990 C-3 5 10080015 Lower Bighorn Big Horn Yellowstone Yellowstone - Lower Bighorn RIVER 58.8 MILES MT43R002_010 "TULLOCK CREEK, Crow Indian Reservation Boundary to mouth (Bighorn River)" Sedimentation/Siltation 1990 C-3 5 10080015 Lower Bighorn Big Horn Yellowstone Yellowstone - Lower Bighorn RIVER 58.8 MILES MT43R002_010 "TULLOCK CREEK, Crow Indian Reservation Boundary to mouth (Bighorn River)" "Phosphorus, Total" 1990 C-3 5 10080015 Lower Bighorn Big Horn Yellowstone Yellowstone - Lower Bighorn RIVER 58.8 MILES MT43R002_010 "TULLOCK CREEK, Crow Indian Reservation Boundary to mouth (Bighorn River)" "Nitrogen, Total" 1990 C-3 5 10080015 Lower Bighorn Big Horn Yellowstone Yellowstone - Lower Bighorn RIVER 58.8 MILES MT76A001_010 "KOOTENAI RIVER, confluence with Yaak River to Idaho border" Temperature 1992 B-1 5 17010104 Lower Kootenai Kootenai Columbia Kootenai RIVER 6.1 MILES MT76D001_010 "KOOTENAI RIVER, Libby Dam to Yaak River" Temperature 1990 B-1 5 17010101 Middle Kootenai Kootenai Columbia Kootenai RIVER 44.6 MILES MT76D003_010 LAKE KOOCANUSA Selenium 2012 B-1 5 17010101 Middle Kootenai Kootenai Columbia Kootenai FRESHWATER LAKE " 28,874.5 " ACRES MT76L001_010 "FLATHEAD RIVER, Flathead Reservation boundary to mouth (Clark Fork River)" Sedimentation/Siltation 1990 B-1 5 17010212 Lower Flathead Pend Oreille Columbia Lower Flathead RIVER 4.2 MILES MT76L001_010 "FLATHEAD RIVER, Flathead Reservation boundary to mouth (Clark Fork River)" Temperature 1990 B-1 5 17010212 Lower Flathead Pend Oreille Columbia Lower Flathead RIVER 4.2 MILES MT76L001_010 "FLATHEAD RIVER, Flathead Reservation boundary to mouth (Clark Fork River)" "Phosphorus, Total" 2010 B-1 5 17010212 Lower Flathead Pend Oreille Columbia Lower Flathead RIVER 4.2 MILES MT76L001_010 "FLATHEAD RIVER, Flathead Reservation boundary to mouth (Clark Fork River)" Nitrate/Nitrite (Nitrite + Nitrate as N) 2010 B-1 5 17010212 Lower Flathead Pend Oreille Columbia Lower Flathead RIVER 4.2 MILES MT76L001_010 "FLATHEAD RIVER, Flathead Reservation boundary to mouth (Clark Fork River)" "Nitrogen, Total" 2010 B-1 5 17010212 Lower Flathead Pend Oreille Columbia Lower Flathead RIVER 4.2 MILES MT76N001_010 "CLARK FORK RIVER, Flathead River to Thompson Falls Reservoir" Dissolved Gas Supersaturation 2014 B-1 5 17010213 Lower Clark Fork Pend Oreille Columbia Clark Fork River RIVER 36.3 MILES MT76N001_020 "CLARK FORK RIVER, Noxon Dam to Noxon Bridge" Temperature 2006 B-1 5 17010213 Lower Clark Fork Pend Oreille Columbia Clark Fork River RIVER 2.9 MILES MT76N001_020 "CLARK FORK RIVER, Noxon Dam to Noxon Bridge" Dissolved Gas Supersaturation 2006 B-1 5 17010213 Lower Clark Fork Pend Oreille Columbia Clark Fork River RIVER 2.9 MILES MT76O002_040 "SPRING CREEK, headwaters to mouth (Ashley Creek)" Arsenic 2006 B-1 5 17010208 Flathead Lake Pend Oreille Columbia Flathead - Stillwater RIVER 4.8 MILES MT76O003_010 FLATHEAD LAKE Mercury 2000 A-1 5 17010208 Flathead Lake Pend Oreille Columbia Flathead Lake FRESHWATER LAKE " 57,305.0 " ACRES MT76O003_010 FLATHEAD LAKE Polychlorinated Biphenyls (PCBs) 2000 A-1 5 17010208 Flathead Lake Pend Oreille Columbia Flathead Lake FRESHWATER LAKE " 57,305.0 " ACRES MT76P003_010 "WHITEFISH RIVER, Whitefish Lake to mouth (Stillwater River)" Oil and Grease 2000 B-2 5 17010210 Stillwater Pend Oreille Columbia Flathead - Stillwater RIVER 24.8 MILES MT76P003_010 "WHITEFISH RIVER, Whitefish Lake to mouth (Stillwater River)" Polychlorinated Biphenyls (PCBs) 2000 B-2 5 17010210 Stillwater Pend Oreille Columbia Flathead - Stillwater RIVER 24.8 MILES MT76P004_010 WHITEFISH LAKE Mercury 2000 A-1 5 17010210 Stillwater Pend Oreille Columbia Flathead - Stillwater FRESHWATER LAKE " 3,317.4 " ACRES MT76P004_010 WHITEFISH LAKE Polychlorinated Biphenyls (PCBs) 2000 A-1 5 17010210 Stillwater Pend Oreille Columbia Flathead - Stillwater FRESHWATER LAKE " 3,317.4 " ACRES