Wind River Environmental Group LLC

Tag Archives: Air Quality Related Values (AQRVs)/Visibility

Toltec Power Station Permit Application

Toltec Power Station Permit Application

Toltec Power Station Permit ApplicationWREG assisted Toltec Power Station, LLC with permitting for a planned 2,000 megawatt natural gas-fired combustion turbine project near Eloy, Arizona. WREG prepared a combined construction/operating permit application for submission to Pinal County. WREG identified all applicable requirements, prepared Best Available Control Technology (BACT) analyses, and analyzed air quality impacts. The air quality impact assessment included estimation of Class I and Class II visibility impacts using PLUVUE and CALPUFF, cumulative National Ambient Air Quality Standards (NAAQS) and Class II increment analyses, and Class I increment consumption modeling.

WREG also supported the applicant in hearings for a Certificate of Environmental Compatibility (CEC) from the State Siting Committee of the Arizona Corporation Commission. As part of the hearing process, WREG conducted cooling tower visible plume modeling using the SACTI model. WREG also prepared Acid Rain Provision documentation.

Solution Mining and Mineral Processing Permit Revisions

Solution Mining and Mineral Processing Permit Revisions

Solution Mining and Mineral Processing Permit RevisionsWREG assisted a solution mining and mineral processing client in revising their Prevention of Significant Deterioration (PSD) permits to incorporate a number of substantive technology and emission changes that had occurred since the permits were originally issued. WREG performed dispersion modeling analyses for two widely separated portions of the source, including cumulative impact analyses. WREG also assisted the client in determining Best Available Control Technology (BACT) for a number of unique processes and emission units.

Platte River Power Authority Combustion Turbine Projects

Platte River Power Authority Combustion Turbine Projects

Platte River Power Authority Combustion Turbine ProjectsWREG has prepared Prevention of Significant Deterioration (PSD) permit applications for five simple-cycle, natural gas-fired combustion turbines at Platte River Power Authority’s Rawhide Energy Station in northern Larimer County, Colorado. The turbine construction projects were developed as three separate projects and three separate permit applications were prepared over a period of several years. Application preparation included conducting a regulatory review, developing Best Available Control Technology (BACT) analyses, and performing necessary dispersion modeling, including modeling of visibility impacts. Since two of the projects were developed in a relatively short period of time, WREG worked with Platte River to provide documentation to the Colorado Air Pollution Control Division (APCD) that a single project had not been split into two projects for the purpose of circumventing PSD requirements. Acid rain documentation for the turbines was also prepared. Following application submission, WREG reviewed draft permit conditions and assisted Platte River with negotiating changes. WREG also prepared operating permit applications for the turbines.

Panda Gila River Project Permit

Panda Gila River Project Permit

Panda Gila River Project PermitWREG prepared the Prevention of Significant Deterioration (PSD) and operating permit application for the Panda Gila River Project in Maricopa County, Arizona. The project was developed by Panda Gila River, LP. The project is a combined-cycle combustion turbine facility capable of generating 2,080 megawatts of electrical power. WREG prepared an initial permit application including emission estimates, applicable requirements identification, Best Available Control Technology (BACT) analyses, and an air quality impact analysis. During the permit review and negotiation process, WREG conducted analyses on fugitive particulate matter emission reductions associated with the project, and prepared an ambient particulate matter monitoring plan/Quality Assurance Project Plan (QAPP). WREG also prepared documentation required under the Acid Rain Provisions of the Clean Air Act for submission.

Bowie Power Station Permit Application

Bowie Power Station Permit Application

Bowie Power Station Permit ApplicationBowie Power Station, LLC, retained WREG to prepare a combined construction/operating air permit application for a 1,000-megawatt natural gas-fired combustion turbine project to be located in southeast Arizona.

The permit application included a description of applicable requirements and compliance methods, Best Available Control Technology (BACT) analyses, and a detailed air quality impact analysis. CALPUFF, VISCREEN, and PLUVUE were used to estimate visibility impacts in nearby Class II areas, as well as visibility effects in four Class I areas.

Acid rain provision documentation was also prepared. The project was recently repermitted as a 500-megawatt facility with updated BACT and dispersion modeling analyses.