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

T.F. Green Airport Improvement ProgramEnvironmental Impact Statement and Final Section 4(f) EvaluationFAA also factored in non-Improvement Program-related land acquisition under the No-Action Alternative,namely RIAC’s Part 150 NCP, which acquires homes through a VLAP for homes that would be exposed to noiselevels at or above DNL 70 dB (without the Improvement Program) according to an updated Noise ExposureMap (NEM). 272 Based on the 2008 Noise Exposure Map (NEM) update, 285 residential properties (280 housingunits) were identified as eligible for acquisition and were acquired in 2009 (referred to in this FEIS as theCompleted Part 150 VLAP). In early 2010, RIAC continued implementation of its Part 150 NCP based on the2020 NEM, which was accepted by the FAA on July 27, 2010. 273 The 2010 NEM update identified 115 residentialparcels as eligible for acquisition of which 70 properties have been acquired as of May 2011 (referred to in thisFEIS as the Current Part 150 VLAP). The Current Part 150 VLAP is scheduled to be complete by 2015.The following lists the steps taken and assumptions made in determining the total number of parcels to beacquired for Alternatives B2 and B4.• The parcels deemed eligible for acquisition under a VLAP for future No-Action Alternative noise mitigation(a continuation of the RIAC Part 150 program) were identified by the 2020 NEM, accepted by the FAA onJuly 27, 2010. 274• The mandatory land acquisitions were identified by the limits of disturbance for construction ofAlternatives B2 and B4.Mandatory full acquisitions would occur when the entirety of a parcel would be within the limit of disturbance,when any portion of a parcel is within the limit of disturbance and a structure would be demolished, and whenapproximately two-thirds or more of the parcel would be within the limit of disturbance.A partial mandatory land acquisition would occur when approximately one-third or less of the parcel iswithin the limit of disturbance and no structures would be demolished.For businesses, a full mandatory land acquisition would occur if the entire parcel were within theconstruction limits, and/or if access or parking ratios would be reduced below zoning requirements, and/orif a portion of the site access or parking is within the limit of disturbance rendering the business inaccessible.• Voluntary full land acquisitions for project-related noise mitigation consistent with the Part 150 NCP(referred to as a Future Build VLAP) would occur when a residential parcel is fully or partially within theDNL 70 dB noise contour based on the final FEIS Alternatives and after consideration of mandatoryconstruction-related acquisitions. These properties are deemed eligible for acquisition upon issuance of theROD. (All residential properties identified as eligible for land acquisition as part of RIAC’s Part 150 NCPupdates, specifically the Completed and Current Part 150 VLAPs, are assumed to have been acquired by2015 as part of the No-Action Alternative.)For the purposes of the Alternative B2 FEIS analysis, it is assumed that residential properties would beacquired between 2020 and 2025 for project-related noise impacts in 2020. However, it is RIAC’sintention to begin to acquire residential parcels as soon as 2012, subject to availability of funding.272 RIAC’s Part 150 NCP was initiated by the 1986 NEM and NCP approval, and includes the1991 NEM update, 1995 NEM update, 2000 NCP revision, 2008NEM update, and 2010 NEM update.273 The 2020 NEM was derived from the Level 6 2020 No-Action Alternative DNL 70 dB noise contour with additional rounding, as documented in the DEIS.274 Ibid.Chapter 5 - Environmental Consequences 5-7 July 2011\\mawatr\ev\09228.00\reports\FEIS_Final_July_2011\PVD_CH05_Environmental_Cons_JUL_2011.doc