Environment
Escalante Station
Escalante Station is a 250 MW coal-fired steam electric generating facility that started commercial operation in 1984 in McKinley County, NM. In July 2000, Plains Electric (owner and operator of Escalante Station) and Tri-State merged. In August 2020, the facility burned the last of its coal supply and shut down power generating operations.
- 2015 Fugitive Dust Control Plan
- 2025 Fugitive Dust Control Plan Report
- 2024 Fugitive Dust Control Plan Report
- 2023 Fugitive Dust Control Plan Report
- 2022 Fugitive Dust Control Plan Report
- 2021 Fugitive Dust Control Plan Report
- 2020 Fugitive Dust Control Plan Report
- 2019 Fugitive Dust Control Plan Report
- 2018 Fugitive Dust Control Plan Report
- 2017 Fugitive Dust Control Plan Report
- 2016 Fugitive Dust Control Plan Report
- Run-On and Run-Off Control System Plan
- Periodic Update of Run-On and Run-Off Control System Plan
- 2025 Annual Inspection Report
- 2024 Annual Inspection Report
- 2023 Annual Inspection Report
- 2022 Annual Inspection Report
- 2021 Annual Inspection Report
- 2020 Annual Inspection Report
- 2019 Annual Inspection Report
- 2018 Annual Inspection Report
- 2017 Annual Inspection Report
- 2016 Annual Inspection Report
- 2015 Annual Inspection Report
- Groundwater Monitoring System Certification
- Statistical Method Selection Certification
- Statistical Method Selection Certification Update
- 2025 Annual Groundwater Monitoring Report
- 2024 Annual Groundwater Monitoring Report
- 2023 Annual Groundwater Monitoring Report
- 2022 Annual Groundwater Monitoring Report
- 2021 Annual Groundwater Monitoring Report
- 2020 Annual Groundwater Monitoring Report
- 2019 Annual Groundwater Monitoring Report
- 2018 Annual Groundwater Monitoring Report
- 2017 Annual Groundwater Monitoring Report
Nucla Station
Nucla Station was a 110 MW coal fired steam electrical power generation facility that began commercial operation in 1959 in Montrose County, Colorado. In 1987 the facility was retrofitted with circulating atmospheric fluidized bed combustion equipment to improve plant efficiency, and the station was acquired by Tri-State Generation and Transmission in 1992. The CCR unit for this facility is an off-site landfill, Nucla Ash Disposal Site. Nucla Station was retired in September 2019. Demolition of the facility began in 2020 and was completed in 2022.
- 2015 Fugitive Dust Control Plan
- 2025 Fugitive Dust Control Plan Report
- 2024 Fugitive Dust Control Plan Report
- 2023 Fugitive Dust Control Plan Report
- 2022 Fugitive Dust Control Plan Report
- 2021 Fugitive Dust Control Plan Report
- 2020 Fugitive Dust Control Plan Report
- 2019 Fugitive Dust Control Plan Report
- 2018 Fugitive Dust Control Plan Report
- 2017 Fugitive Dust Control Plan Report
- 2016 Fugitive Dust Control Plan Report
- Run-On and Run-Off Control System Plan
- Periodic Update of Run-On and Run-Off Control System Plan
- 2025 Annual Inspection Report
- 2024 Annual Inspection Report
- 2023 Annual Inspection Report
- 2022 Annual Inspection Report
- 2021 Annual Inspection Report
- 2020 Annual Inspection Report
- 2019 Annual Inspection Report
- 2018 Annual Inspection Report
- 2017 Annual Inspection Report
- 2016 Annual Inspection Report
- 2015 Annual Inspection Report
- 2019 Groundwater Monitoring System Certification
- 2017 Groundwater Monitoring System Certification
- Statistical Method Selection Certification
- Statistical Method Selection Certification Update
- 2025 Annual Groundwater Monitoring Report
- 2024 Annual Groundwater Monitoring Report
- 2023 Annual Groundwater Monitoring Report
- 2022 Annual Groundwater Monitoring Report
- 2021 Annual Groundwater Monitoring Report
- 2020 Annual Groundwater Monitoring Report
- 2019 Annual Groundwater Monitoring Report
- 2018 Annual Groundwater Monitoring Report
- 2017 Annual Groundwater Monitoring Report
Craig Station
Current CCR handling operations at the Craig Generating Station do not include the use of any CCR units and do not require publication of reports on a publicly-available website.
Contact Us
For more information or if you have questions please contact us at corporate_communications@tristategt.org.




