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Louisville). Food data, cement data, vehicle fleet fuel efficiency, and vehicle fleet makeup data <br />are from secondary sources. Cement consumption data and DIA fuel consumption data were <br />scaled by population. <br />Table 1. Sources of Data Used in Louisville's 2012 Baseline Enei gy Study <br />Baseline Energy Study Data Inputs <br />Data Source <br />Data Type <br />Data Scaling <br />Building Energy Use Data <br />Xcel Energy 2012 Local Government Consumption Report <br />Primary <br />None <br />On -Road Vehicle Miles Travelled <br />Denver Regional Council of Governments 2010 Transportation <br />Model <br />Model Run <br />None <br />Vehicle Fleet Make -up <br />Colorado Department of Public Health and Environment, <br />Personal Communication w/ Jim Sidebottom <br />Secondary <br />None <br />Vehicle Fuel Type Characteristics <br />2011 EPA MOVES Report <br />Secondary <br />None <br />Vehicle Fleet Fuel Efficiency <br />US Census Bureau Domestic Motor Fuel Consumption Report <br />Secondary <br />None <br />DIA Fuel Data <br />Personal Communication w/ DIA Fuel Facility Manager Joe <br />Finucane <br />Primary <br />Population <br />DIA Enplaned Passenger Data <br />City & County of Denver Colorado 2013 Disclosure Statement <br />Primary <br />None <br />Water & Wastewater Data <br />Personal Communication w/ Dave Szabados, City of Louisville <br />Primary <br />None <br />Cement Use Data <br />US Geological Survey Report, 2004 <br />Secondary <br />Population <br />Food Consumption Data <br />US 2012 Economic Census, Westem United States <br />Secondary <br />None <br />Municipal Waste Data <br />Personal Communication wl Dave Szabados, City of Louisville; <br />Western Disposal; All Recycling <br />Primary <br />None <br />Emission Factors <br />Electricity <br />Xcel Energy 2012 Local Government Consumption Report <br />Natural Gas <br />Xcel Energy 2012 Local Government Consumption Report <br />Gasoline, Diesel, & Jet Fuels <br />ICLEI 2008 Local Governments Reporting Protocol Report <br />EmoodiedEmissions from Gasoline, Diesel, & <br />Jet Fuels <br />2007 Argonne National Laboratory GREET Model <br />Cement <br />National Renewable Energy Laboratory's (NREL) Life Cycle <br />Inventory Database, <br />Water & Wastewater <br />ICLEI 2008 Local Governments Reporting Protocol Report <br />Municipal Solid Waste <br />US EPA Waste Reduction Model (WARM) <br />3. Methodology & Data Quality <br />The GHG inventory is carried out using the Trans - Boundary Infrastructure Footprint <br />methodology developed by Ramaswamil et. al. in conjunction with the ICLEI- Local <br />Governments for Sustainability U.S. Community Protocol for Accounting and Reporting <br />Greenhouse Gas Emissions2. This protocol provides guidance for the quantification and reporting <br />of GHG emissions for scopes 1, 2, and 3. Scope 1 is defined as emissions from in- boundary <br />activities, such as burning fossil fuel. Scope 2 is defined as emissions resulting from purchased <br />electricity generated outside of the municipal boundary. Scope 3 is defined as emissions from <br />out -of- boundary activities including driving, flying, and importing critical infrastructure <br />materials (cement, food, etc.). This inventory method was pioneered by UC Denver with the <br />10 <br />12 <br />