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Greenhouse Gas Emissions as a Basis for Project Alternative Comparison

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Not only do agencies need to prepare for reporting greenhouse gas (GHG) emissions for their existing facilities, but they also need to evaluate the change in impact due to planned facilities. In September of 2006, the first GHG emissions regulation in the U.S. was adopted – California's Global Warming Solutions Act (also known as Assembly Bill 32, AB 32) - for reporting and reduction of statewide GHG emissions. Other states have followed their lead and, in June of 2009, the U.S. EPA adopted their Mandatory GHG Reporting Rule. There is no mandate on publicly owned treatment works (POTWs) at this time; however, it is expected that POTWs will be included in the future. This paper presents the method for estimating planning level GHG emissions estimates for project alternatives and provides a case study of the analysis completed for California's County of San Luis Obispo (County) Los Osos Wastewater Project Development.

Keywords: GHG; Greenhouse gas emissions; project alternative; reporting; wastewater

Document Type: Research Article


Publication date: 2009-01-01

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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