TMDL: South Platte River basin

COSPBD01: Big Dry Creek E.coli with approval letter.

COSPBO02: Boulder Creek from North Boulder Creek to South Boulder Creek, E. coli TMDL with approval letter.

COSPBO04a: South Boulder Creek and tributaries from source to outlet of Gross Reservoir, Gamble Gulch, pH, Zinc and Copper TMDLs Final with approval letter.

COSPBO04a :Gamble Gulch, Cadmium and Zinc TMDL Final with approval letter.

COSPBO09: Boulder Creek, South Boulder Creek to Coal Creek, Ammonia TMDL Final with approval letter.

COSPBO10: Boulder Creek, Coal Creek to St. Vrain Creek, Ammonia TMDL Final with approval letter.

COSPCP07: North Fork Cache la Poudre River, Hall Reservoir to Cache la Poudre River, Sediment TMDL with approval letter.

COSPCL02: Clear Creek from Silver Plume to Argo Tunnel, Copper, Lead and Zinc TMDLs Final with approval letter.

COSPCL03a: South Clear Creek, Zinc TMDL Final with approval letter.

COSPCL03b: Leavenworth Creek, Lead and Zinc TMDLs Final with approval letter.

COSPCL06: Mad Creek, Zinc TMDL Final with approval letter.

COSPCL09a: Fall River, Copper TMDL Final with approval letter.

COSPCL09b: Trail Creek and tributaries, Cadmium, Copper, Lead and Zinc TMDLs Final with approval letter.

COSPCL11: Clear Creek from Argo Tunnel to Farmers Highline Canal, Cadmium, Lead and Zinc TMDLs Final with approval letter.

COSPCL13b: North Fork Clear Creek, Cadmium, Iron, Manganese, Zinc and Aquatic Life Use TMDLs Final with approval letter.

COSPMS04: Barr Lake and Milton Reservoir, Dissolved Oxygen TMDL: Final, with approval letter.

COSPMS04: Barr Lake and Milton Reservoir, pH TMDL: Final, with approval letter.

COSPMSO4:Barr Lake and Milton Reservoir, Implementation Plan for pH TMDL: Final.

COSPSV03: St. Vrain Creek, Hygiene Road to South Platte River, Ammonia TMDL Final with approval letter.

COSPSV04: Little James Creek, pH, Cadmium, Iron, Manganese and Zinc TMDLs with approval letter.

COSPSV04a: Left Hand Creek, Hwy 72 to James Creek, Cadmium Copper, Zinc and pH TMDLs Final with approval letter.

COSPSV04b: James Creek, Little James Creek, Cadmium, Copper, Lead, Zinc and pH TMDLs Final with approval letter.

COSPSV04c: Left Hand Creek, James Creek to Hwy 36, Copper TMDL Final with approval letter.

COSPUS01a: South Platte River, Source to North Fork South Platte River, Sediment TMDL with approval letter.

COSPUS02b: Mosquito Creek, Cadmium, Lead and Zinc TMDLs with approval letter.

COSPUS02c: South Mosquito Creek, Cadmium, Iron, Manganese and Zinc TMDLs with approval letter.

COSPUS04: North Fork South Platte River, Hall Valley, Copper TMDL Final with approval letter.

COSPUS05a: Geneva Creek, Source to Scott Gomer Creek, Cadmium, Copper, Manganese, Zinc TMDL Final with approval letter.

COSPUS05b: Geneva Creek, Scott Gomer Creek to North Fork South Platte River, Cadmium, Copper, Manganese, Zinc TMDL Final with approval letter.

COSPUS05b: Geneva Creek, Scott Gomer Creek to North Fork South Platte River, Copper and Zinc TMDLs Final with approval letter.

COSPUS14: South Platte River, Bowles Avenue to Burlington Ditch, Nitrate TMDL Final with approval letter.

• Modeling Report.

COSPUS14: South Platte River, Bowles Avenue to Burlington Ditch, Escherichia coli TMDL Final with approval letter.

COSPUS15: South Platte River, Burlington Ditch to Big Dry Creek, Cadmium TMDL Final 2006 with approval letter.

COSPUS15: South Platte River, Burlington Ditch to Big Dry Creek, Dissolved Oxygen TMDL Final with approval letter.

COSPUS15: South Platte River, Burlington Ditch to Clear Creek, Cadmium TMDL revised Final 2011 with approval letter.

COSPUS15: South Platte River, Burlington Ditch to Big Dry Creek, E. coli TMDL, Final 2016 with approval letter.