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

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T.F. Green Airport Improvement ProgramEnvironmental Impact Statement and Final Section 4(f) EvaluationBay (Figure 4-32), and is subject to the Greenwich Bay SAMP goals and objectives. 437 RICRMC also hasauthority over freshwater wetlands in the vicinity of the coast. However, the Airport itself is not withinRICRMC freshwater wetland jurisdiction.5.15.2.1 Finding: No Significant Coastal Resources ImpactsIn order for FAA to make a determination of CZM Consistency, the Preferred Alternative must be designed tocomply with applicable performance standards of the CRMP, Rhode Island Soil Erosion and Sediment ControlHandbook, Rhode Island Stormwater Design and Installation Standards Manual, and the SAMP goals and objectives.Following its review of the FEIS, RICRMC must provide its concurrence regarding CZM Consistency.Alternatives B2 and B4 would be designed to comply with applicable performance standards of the CRMP,Rhode Island Soil Erosion and Sediment Control Handbook, and Rhode Island Stormwater Design and InstallationStandards Manual, and the SAMP goals and objectives. The FAA finds that Alternatives B2 and B4 will not resultin a significant impact to coastal resources.5.15.3 MethodologyThe analysis methodology consists of comparing proposed T.F. Green Airport Improvement Program activitieswith performance criteria identified in applicable RICRMC guidance. The CZM consistency evaluation includesidentification of any coastal resources that could be affected directly by the Improvement Program, assessmentof construction management to prevent erosion, assessment of stormwater treatment and changes tostormwater flows, mitigation for wetland impacts, and an assessment of overall impacts on Greenwich Bay.Consideration is given to stormwater runoff characteristics and potential downstream water quality and habitatimpacts that would lead to the Alternatives being subject to the CZM Consistency requirement. RIDEM willreview all stormwater and wetland issues in accordance with its guidance and regulations. Detailed technicalinformation to support consistency with these standards is presented in Section 5.10, Wetlands and Waterways,Section 5.11, Water Quality, Section 5.12, Fish, Wildlife, and Plants, and Section 5.14, Floodplains.5.15.4 Impact AssessmentThe following section considers potential impacts to coastal resources as a result of the No-Action Alternativeand Alternatives B2 and B4.5.15.4.1 No-Action AlternativeThe No-Action Alternative would have no direct impacts to coastal resources since there are no coastalresources within the Project Area.5.15.4.2 Alternative B2Like the No-Action Alternative, Alternatives B2 and B4 would have no direct impacts to any coastal resourcesbecause the Project Area does not contain any coastal resources. The Fully Relocated Airport Road included inAlternative B2 may impact freshwater wetlands subject to the jurisdiction of the RICRMC under the Rules andRegulations Governing the Protection and Management of Freshwater Wetlands in the Vicinity of the Coast. 438 Warwick437 Greenwich Bay SAMP, Rhode Island Coastal Resources Management Council, www.crmc.state.ri.us/regulations/SAMP_GreenwichBay.pdf.438 State of Rhode Island Coastal Resources Management Council. Rules and Regulations Governing the Protection and Management of FreshwaterWetlands in the Vicinity of the Coast. (August 1999).Chapter 5 - Environmental Consequences 5-252 July 2011\\mawatr\ev\09228.00\reports\FEIS_Final_July_2011\PVD_CH05_Environmental_Cons_JUL_2011.doc
T.F. Green Airport Improvement ProgramEnvironmental Impact Statement and Final Section 4(f) EvaluationAvenue north of the intersection with Airport Road is identified as the boundary between RIDEM and RICRMCfreshwater wetland jurisdiction. The roadway improvements required at the Warwick Avenue/Airport Roadintersection include widening that may extend east of Warwick Avenue into freshwater wetlands. Wetlandsimpacts are addressed in Section 5.10, Wetlands and Waterways.The assessment of CZM consistency applies to both Alternative B2 and B4. This section identifies how each goalor requirement would be met.CRMP Section 300.6 — Stormwater Management for Large ProjectsThe Improvement Program would follow the requirements of the Rhode Island Stormwater Design and InstallationStandards Manual for the stormwater design. 439 Alternatives B2 and B4 will be designed to comply with statestormwater requirements. The Airport’s SWPPP would be updated to ensure the proper maintenance andoperating procedures are followed for the system in keeping with the requirements of the Rhode IslandStormwater Design and Installation Standards Manual.RICRMC will be provided a copy of all documents provided to RIDEM relating to stormwater and any otherinformation requested for consistency review.Greenwich Bay SAMP Section 120.2 — Improve Greenwich Bay’s Water QualityThis goal in the Greenwich Bay SAMP covers a number of actions that would improve overall water quality inGreenwich Bay. The goal indicates that RIAC should “implement Best Management Practices (BMPs) to reducestorm water discharge volume and nitrogen and bacteria concentrations.” This SAMP goal is implementedthrough SAMP Section 470.5B.17, which identifies recommended actions for meeting the goal of improvedwater quality within Greenwich Bay.Greenwich Bay SAMP Section 120.3 — Maintain High Quality Fish and Wildlife HabitatThis goal in the Greenwich Bay SAMP covers a number of actions to maintain fish and wildlife habitat in theGreenwich Bay watershed. The goal indicates that RIAC should “preserve remaining freshwater wetlands in theGreenwich Bay watershed.” The measures needed to accomplish this action are addressed in greater detail inSAMP Section 390.5B.5, which is described below.Greenwich Bay SAMP Section 390.5B.5 — Airport Impacts on WetlandsThis section of the SAMP indicates that RIAC “should examine the impacts from any proposed expansionproposal on Greenwich Bay’s tidal and freshwater wetlands and mitigate for any impacts within the watershed.”Impacts on wetlands and proposed mitigation for these impacts for Alternatives B2 and B4 are discussed in detailin Section 5.10, Wetlands and Waterways. The proposed mitigation would meet this SAMP objective.5.15.4.3 Alternative B4The only freshwater wetland impacts associated with Alternative B4 are on the Airport. Since T.F. Green Airport isnot within the RICRMC freshwater wetland jurisdiction, no wetlands subject to RICRMC jurisdiction areimpacted. Alternative B4 would be designed to comply with applicable state standards relating to the areas439 Stormwater Design and Installation Standards Manual, State of Rhode Island, www.crmc.ri.gov/regulations/programs/whitebook.pdf, 1993.Chapter 5 - Environmental Consequences 5-253 July 2011\\mawatr\ev\09228.00\reports\FEIS_Final_July_2011\PVD_CH05_Environmental_Cons_JUL_2011.doc
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