T.F. Green Airport Improvement Program - FEIS Chapters - PVD

T.F. Green Airport Improvement ProgramEnvironmental Impact Statement and Final Section 4(f) EvaluationTable 5-91Operational and Construction Emissions General Conformity Summaries (tpy)PollutantAlternativeDe minimisLevels 1 Category 2015 2016Year2017 2018 2019 2020Alternative B2 Construction 1.5 0.4 1.4 2.7 1.9 3.8Operational 2 0.2 0.2 0.2 0.2 0.2 8.0VOC50 Totals1.6 0.6 1.6 2.8 2.0 11.9Alternative B4Construction3.3 3.9 2.5 2.6 1.3 2.3Operational 2 9.2 9.2 9.2 9.2 9.2 7.750 Totals 12.6 13.1 11.7 11.9 10.5 10.0Alternative B2 Construction 14.8 3.0 10.0 17.1 10.5 19.4Operational 2 0.2 0.2 0.2 0.2 0.2 47.6NOX100 Totals15.0 3.2 10.3 17.3 10.7 67.0Alternative B4Construction32.5 31.6 18.0 16.6 7.4 12.1Operational 2 50.0 50.0 50.0 50.0 50.0 47.4100 Totals 82.5 81.6 68.0 66.6 57.4 59.5Conforms to the SIP? 3 Yes Yes Yes Yes Yes YesSource: KB Environmental Sciences, Inc. 2011.NOX Nitrogen oxides.VOCs Volatile organic compounds.1 De minimis levels are thresholds below which the program-related emissions are “presumed to conform” to the SIP.2 Operational emissions are the differences among the Build and No-Action Alternative in that year.3 Conforms to the SIP determinations (i.e., Yes/No) are based on whether or not program-related emissions (tpy) are less than de minimis levels (tpy).5.7.6.2 Transportation ConformityUnder Transportation Conformity, there are no project-specific quantitative criteria for determining if surfacetransportation or transit-related emissions comply with the SIP. Instead, the individual project(s) are listed asplanned improvements to the area-wide roadway or transit systems in a conforming TransportationImprovement Plan (TIP). For the proposed off-site roadway improvements associated with Alternatives B2 andB4, these criteria will be met by their inclusion into the Rhode Island TIP or shown not to be regionallysignificant.5.7.7 Cumulative ImpactsPotential impacts associated with Alternatives B2 and B4 along with air emissions from other, non-airportsources of emissions have also been assessed cumulatively, as a standard part of the analysis. The specificanalyses include the following:• The operational emissions inventory, which includes emissions from all Airport sources (i.e., aircraft, GSE,on-site motor vehicles, etc.), in combination with emissions associated with Alternatives B2 and B4improvements. Emissions from both Airport and non-Airport traffic operating on the adjoining roadwaynetwork also are included.Chapter 5 - Environmental Consequences 5-167 July 2011\\mawatr\ev\09228.00\reports\FEIS_Final_July_2011\PVD_CH05_Environmental_Cons_JUL_2011.doc