Wyoming's 2014 Integrated 305(B) and 303(D)
Total Page:16
File Type:pdf, Size:1020Kb
Wyoming’s 2014 Integrated 305(b) and 303(d) Report February 25, 2016 Prepared by: Wyoming Department of Environmental Quality Water Quality Division Watershed Section 122 W. 25th St. Herschler Building 4-W Cheyenne, WY 82002 (307)-777-3501 [email protected] Document #16-0126 Wyoming’s 2014 Integrated 305(b) and 303(d) Report Table of Contents 1.0 Introduction .......................................................................................................................................... 7 1.1 Section 305(b) Requirements ........................................................................................................ 7 1.2 Section 303(d) Requirements ......................................................................................................... 7 2.0 Determining Surface Water Quality Condition ................................................................................. 8 2.1 Data Requirements .......................................................................................................................... 8 Credible Data ....................................................................................................................................... 8 Wyoming’s Weight of Evidence Approach ...................................................................................... 9 2.2 Designated Uses ............................................................................................................................... 9 2.3 USEPA Categorization .................................................................................................................... 11 3.0 Surface Water Quality Monitoring ................................................................................................... 13 3.1 Wyoming’s Surface Water Monitoring Program ........................................................................ 13 Wyoming’s Stream Surface Water Quality Monitoring Networks .............................................. 14 Wyoming’s Surface Water Quality Surveys ................................................................................... 14 3.2 Monitoring by Conservation Districts .......................................................................................... 16 4.0 TMDL Prioritization............................................................................................................................. 16 5.0 Wyoming’s Nonpoint Source Program ............................................................................................ 17 6.0 Emerging Surface Water Quality Issues ......................................................................................... 17 Methylmercury .................................................................................................................................. 17 Climate Change ................................................................................................................................. 18 7.0 Public Participation ............................................................................................................................ 19 8.0 Basin Descriptions and Surface Water Quality Summaries ......................................................... 19 8.1 Bear River Basin ............................................................................................................................. 19 Upper Bear River Sub-basin (HUC 16010101) ............................................................................. 20 Central Bear River Sub-basin (HUC 16010102) ........................................................................... 21 8.2 Belle Fourche River Basin ............................................................................................................. 22 Upper Belle Fourche Sub-basin (HUC 10120201) ........................................................................ 23 Lower Belle Fourche Sub-basin (HUC 10120202) ........................................................................ 26 Redwater Sub-basin (HUC 10120203) .......................................................................................... 26 8.3 Big Horn River Basin ...................................................................................................................... 26 Upper Wind Sub-basin (HUC 10080001) ...................................................................................... 27 Little Wind Sub-basin (HUC 10080002) ........................................................................................ 29 Popo Agie Sub-basin (HUC 10080003) .......................................................................................... 29 Lower Wind Sub-basin (HUC 10080005) ...................................................................................... 31 Badwater Creek Sub-basin (HUC 10080006) ............................................................................... 33 Upper Big Horn Sub-basin (HUC 10080007) ................................................................................ 33 Nowood Sub-basin (HUC 10080008) ............................................................................................. 36 Greybull Sub-basin (HUC 10080009) ............................................................................................. 38 Bighorn Lake Sub-basin (HUC 10080010) .................................................................................... 39 Dry Creek Sub-basin (HUC 10080011) .......................................................................................... 41 North Fork Shoshone River Sub-basin (HUC 10080012) ............................................................ 42 Shoshone River Sub-basin (HUC 10080014) ................................................................................ 43 Little Big Horn River Sub-basin (HUC10080016) ......................................................................... 45 8.4 Cheyenne River Basin .................................................................................................................... 45 Antelope Creek Sub-basin (HUC 10120101) ................................................................................ 46 Upper Cheyenne Sub-basin (HUC 10120103) .............................................................................. 47 Document #16-0126 Page 2 Wyoming’s 2014 Integrated 305(b) and 303(d) Report Angostura Reservoir Sub-basin (HUC10120106) ......................................................................... 48 Beaver Creek Sub-basin (HUC 10120107) .................................................................................... 48 8.5 Green River Basin .......................................................................................................................... 49 Upper Green Sub-basin (HUC 14040101) ..................................................................................... 50 New Fork Sub-basin (HUC 14040102)........................................................................................... 52 Slate Creek Sub-basin (HUC 14040103) ....................................................................................... 53 Big Sandy Sub-basin (HUC 14040104) .......................................................................................... 53 Bitter Creek Sub-basin (HUC 14040105) ...................................................................................... 55 Flaming Gorge Sub-basin (HUC 14040106) .................................................................................. 57 Blacks Fork Sub-basin (HUC 14040107) ....................................................................................... 58 8.6 Little Missouri River Basin ............................................................................................................. 60 8.7 Little Snake River Basin................................................................................................................. 61 Little Snake Sub-basin (HUC 14050003) ....................................................................................... 61 Muddy Creek Sub-basin (HUC 14050004) .................................................................................... 63 8.8 Niobrara River Basin ...................................................................................................................... 65 Niobrara Headwaters Sub-basin (HUC 10150002) ...................................................................... 65 8.9 North Platte River Basin ................................................................................................................ 66 Upper North Platte Sub-basin (HUC 10180002) .......................................................................... 67 Pathfinder-Seminoe Sub-basin (HUC 10180003) ......................................................................... 71 Medicine Bow Sub-basin (HUC 10180004) ................................................................................... 72 Little Medicine Bow Sub-basin (HUC 10180005) ......................................................................... 73 Sweetwater Sub-basin (HUC 10180006)....................................................................................... 75 Middle North Platte Sub-basin (HUC 10180007) ......................................................................... 76 Glendo Sub-basin (HUC 10180008) ............................................................................................... 78 Upper Laramie Sub-basin (HUC 10180010) ................................................................................