As part of a new national vision for the CWA 303(d) program states were required to identify priority areas for TMDL development through 2022. Colorado submitted priority areas to EPA in the fall of 2015. The draft strategy document outlines the approach used to determine priority areas.
The division is currently working on completing TMDLs that were prioritized during the last vision cycle. Targets for TMDL development for 2024 and 2025 are listed below.
2015 draft TMDL Prioritization Strategy
| TMDLs and Alternative Restoration Plans in 2024 and 2025 | |||
|---|---|---|---|
|
Waterbody AUID
|
Waterbody
|
Pollutants
|
Target Year
|
| COARMA12_A | Huerfano River | Se | 2024 |
| COARLA01b_A |
Arkansas River, Colorado Canal to John Martin Reservoir |
Se | 2024 |
| COARLA04a_A,B | Apishapa River, Timpas Creek | Se | 2024 |
| COARLA09a_A,B,C |
Tributaries to Arkansas River, and Chicosa Creek |
Se | 2024 |
| COARLA09b_B | Big Sandy Creek | Se | 2024 |
| COSPBE01C_A | Bear Creek Reservoir | P, chl-a | 2024 |
| COSPBE02_C | Bear Creek below Kipling Parkway | E. coli | 2025 |
| COARUA15_A | DeWeese Reservoir | Do and P | 2025 |
| COSPCP12_A | Cache la Poudre River | E. coli | 2025 |
| COSPCP13a_D,E | Fossil Creek, Spring Creek | E. coli | 2025 |
| COARLA01c_A | Arkansas River, John Martin Reservoir Outlet to Colorado/Kansas state line | Se (alternative restoration plan) |
2025 |
| COSPCL02a,b,c_B,C,F | Mainstem of Clear Creek and tribs | Cd, Zn | 2025 |
| COSPCL02c_B | Turkey Gulch | Cd, Zn, Cu, Fe, Mn, Ni | 2025 |
| COSPCL03b_A | Leavenworth Creek | Cd, Cu | 2025 |
| COSPCL05_B | West Fork of Clear Creek | Cu | 2025 |
| COSPCL06_C | North Empire Creek | Cd, Zn, Cu, Fe, Mn, Ni, Pb |
2025 |
| COSPCL09a_B | Silver Creek | Pb, Cu | 2025 |
| COSPCL09a_C | Fall River | Zn | 2025 |
| COSPCL10_A |
Chicago Creek, mainstem and all tributaries |
Cu | 2025 |
| COSPCL12a_B | Gilson Gulch and tribs | Cd, Cu, Fe, Pb, Mn, Ni, Zn | 2025 |
| COSPCL13b_C |
Gregory, Russell, Silver Gulches and tribs |
Cd | 2025 |