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Purpose of an Airport Environmental Assessment (EA)

Purpose of an Airport Environmental Assessment (EA) Identify environmental impacts of proposed airport development projects or actions Determine if impacts are “significant” as defined by the FAA Provide an opportunity for public input Provide information for FAA decision makers

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Purpose of an Airport Environmental Assessment (EA)

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  1. Purpose of an Airport Environmental Assessment (EA) • Identify environmental impacts of proposed airport development projects or actions • Determine if impacts are “significant” as defined by the FAA • Provide an opportunity for public input • Provide information for FAA decision makers • FAA Outcomes – Finding of No Significant Impact (FONSI) or requirement for Environmental Impact Study (EIS) • According to NEPA and FAA regulations, an EIS is needed if the analysis in the EA of environmental impact categories indicates that impacts will be “significant” • The OSU Airport EA has been a very open and public process

  2. Summary of Environmental Impacts and Proposed Mitigation from Draft Environmental Assessment

  3. Environmental Categories (cont’d)

  4. Actual noise levels were measured with monitors, under full compliance with FAA noise measurement standards Future noise levels have been predicted by the use of an FAA & EPA approved Integrated Noise Model (INM -6.1) Analysis designed and conducted with full community input and involvement – Preliminary results reviewed by Advisory Committee on June 23, 2004. Noise Analysis at the OSU Airport

  5. EPA & FAA define 65 Decibels (dB) as the critical Day Night Average Sound Level (DNL) DNL = Cumulative measure of the average noise exposure resulting from aviation activities during an average 24-hour calendar day A 10 dB penalty is added to noise events occurring between 11:00 pm and 7:00 am DNL for non-aviation related community noise was typically 50-55 in test locations Federal Noise Guidelines

  6. Noise Sensitive Receiver = An individual residence, hotel, hospital, school, church A Significant Noise Impact occurs if analysis shows that proposed actions would cause a noise sensitive receiver to reach noise levels of 65 dB (DNL) or greater; or if an increase of 1.5dB or more occurs in noise sensitive receivers exposed to DNL 65 or higher, when compared to the no-action alternative Federal Noise Guidelines (cont’d)

  7. Existing Conditions No-build Scenario – No improvements at the Airport, normal industry growth, improved engine technology Preferred Short-Term Alternative – New south side hangars, north runway extension, normal industry growth, improved engine technology Full Master Plan Build – Long-term (20 yr.) development, including new north side hangars Airport Development Scenarios

  8. Current Noise Level

  9. Current Noise Levels: No noise issues exist around the north runway South runway 65 DNL extends into residential areas 27 homes west of the Airport and 4 homes east of the Airport are impacted Noise Study Results

  10. No-build Noise Level (65 DNL)

  11. No-Build Noise Level Scenario: Reduces noise due to improvements in aircraft engine technology 65 DNL only extends off Airport property to the southeast No homes affected Noise Study Results

  12. Preferred Short-Term Alternative Noise Level

  13. Preferred Alternative Noise Level 65 DNL only extends off Airport property to the north and southeast The DNL noise level decreases for the majority of monitoring locations around the Airport No homes affected where DNL over 65 dB Noise Study Results

  14. Ongoing OSU Activities • Performing Due Diligence in Three Areas • Technical Aspects of Preliminary Draft EA • Analysis of Integrated Noise Model Inputs and effect on 65 DNL • Additional Analysis of Impact on Historic Structures (Section 106) • Incorporation of responses to questions/comments raised by EA Advisory Committee, from FAA initial review, into a second draft EA • Fiscal Aspects of Master Plan Implementation • Assessing Impact on Community

  15. Tentative Timeline Regarding Airport Master Plan and Environmental Assessment (EA) February 1, 2004 Second Draft EA submitted to FAA for review March 15, 2005 Anticipated receipt of FAA comments on Second Draft EA April 1, 2005 Public Comment Period Begins on Final Draft EA April 25, 2005 Public Hearing as required by FAA June 8, 2005 Board of Trustees Meeting – CoE makes formal presentation and recommendation regarding Master Plan July 8, 2005 Board of Trustees Meeting – Possible Action on Master Plan Summer/Fall 2005 FAA Review of Final Environmental Assessment

  16. ClosingComment • The Airport and the College will continue to communicate and cooperate with the community and other stakeholders – being sensitive to their concerns and participation in the planning process.

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