Bear Creek Watershed Association 2018 Annual Report Bear Creek Watershed Association 1529 South Telluride St Aurora, CO 80017 Manager: Russell N Clayshulte 303-751-7144 [email protected] U www.bearcreekwatershed.orgH Adopted May 10, 2019 The Bear Creek Watershed Association protects & restores water & environmental quality within the Bear Creek Watershed from the effects of land use Contents I. WQCC Summary ............................................................................................................................................ 1 Status of Water Quality ................................................................................................................................. 1 Wastewater Treatment Facilities Loading and Compliance .......................................................................... 3 Nonpoint Source Loading .............................................................................................................................. 3 Status of Water Quality Goals and Standards ................................................................................................ 5 Phosphorus Trading Program ........................................................................................................................ 5 II. Bear Creek Watershed Association Program .................................................................................................. 6 III. Status of Water Quality in the Reservoirs and Watershed .............................................................................. 7 Monitoring Program Update .......................................................................................................................... 7 Watershed Studies ......................................................................................................................................... 8 Stream Flow Studies ................................................................................................................................. 8 Hydrology ................................................................................................................................................. 9 Water Quality Studies............................................................................................................................. 10 Reservoirs .................................................................................................................................................... 12 Bear14B Creek Reservoir and Inflow Nutrients ........................................................................................... 12 Bear16B Creek Reservoir Indicator Trend Variables ................................................................................... 13 Bear Creek Reservoir Aeration Practice Manages Summer Dissolved Oxygen .................................... 16 Aeration System BCR .................................................................................................................... 17 Sediment Studies Bear Creek Reservoir and Evergreen Lake ................................................................ 18 Evergreen Lake Study ............................................................................................................................ 19 IV. Meeting Water Quality Goals and Standards for the Watershed ................................................................... 19 Dissolved Oxygen Compliance in Bear Creek Reservoir ............................................................................ 19 Temperature Standards Bear Creek Watershed ........................................................................................... 20 Bear Creek Reservoir Temperature Compliance .................................................................................... 21 Watershed Stream and Lake Compliance ............................................................................................... 22 303(d) Listing .............................................................................................................................................. 24 Barr/Milton Model Input and Bear Creek Load Predictions ....................................................................... 24 Macroinvertebrate Analysis and Aquatic Life Compliance......................................................................... 25 V. Wastewater Treatment Facilities Loading and Compliance .......................................................................... 25 Wasteload17B Compliance ................................................................................................................................ 25 Permit18B Compliance and Plant Expansions/Actions ..................................................................................... 26 Utility Supported Programs ......................................................................................................................... 27 Pharmaceutical Recycling Program ....................................................................................................... 27 Sanitary Sewer Incentive Programs in the Evergreen Area. ................................................................... 27 Trading19B Program .......................................................................................................................................... 27 Watershed Stormwater Management ........................................................................................................... 27 City of Lakewood MS4 Program ........................................................................................................... 27 Jefferson County MS4 Program ............................................................................................................. 28 BCWA Stormwater Monitoring Program............................................................................................... 28 Clear Creek County Stormwater Management Program ........................................................................ 29 VI. Nonpoint Source Program ............................................................................................................................. 29 Onsite21B Wastewater Treatment System Management ................................................................................... 29 Kerr/Swede Gulch and Cub Creek .............................................................................................................. 29 Selected Watershed Nonpoint Source Programs ......................................................................................... 30 Policy Direction ...................................................................................................................................... 30 Water Quality Monitoring Tiers ............................................................................................................. 30 Online Management System (ACM DSS).............................................................................................. 31 Nonpoint Source Analysis in EPA BASINS GWLF-E .......................................................................... 31 Nonpoint Source Education .................................................................................................................... 31 Watershed Education and Training Efforts .................................................................................... 31 BCWA Newsletter .......................................................................................................................... 32 Future Watershed Manager Program .............................................................................................. 32 Geo-Locate Sign Program .............................................................................................................. 32 ii Bear Creek Regional Parks, Lakewood .......................................................................................... 32 Evergreen Trout Unlimited ............................................................................................................. 32 Wilmot Elementary School in Evergreen ....................................................................................... 32 Manure Management .............................................................................................................................. 32 Jefferson Conservation District .............................................................................................................. 32 Summit Lake .......................................................................................................................................... 33 Fen Complex Study Summit Lake ......................................................................................................... 33 Clear/Bear Creek Wildfire/Watershed Assessment ................................................................................ 34 Evergreen Metropolitan District Source Water Assessment .................................................................. 34 Evergreen Metropolitan District Canal Cleaning Operation .................................................................. 34 Coyote Gulch Nonpoint Source Restoration .......................................................................................... 34 Association Land-Use Review .................................................................................................................... 35 BCWA and Membership