SU0011836 - Laserfiche WebLink

Home Browse Search

Draft Supplemental Environmental Impact Report Page IV.A-23 Forward Inc.Landfill 2018 Expansion Project lowest OCS is approximately 210 to 230 feet Above Mean Sea Level(AMSL) over the project ' area.Therefore the proposed 180.7'AMSL South Infill and 190'AMSL Northeast Infill would not penetrate this OCS, and therefore would not have an adverse impact on arrival procedures at SCK. Each instrument approach procedure to SCK contains a Circle-to-Land option.The circle-to- land portion of the procedure allows a pilot to approach the airport in instrument conditions then,when the airport environment is in sight,the pilot can maneuver the aircraft to the opposite end of the runway to land.A pilot would execute this type of instrument approach procedure if the winds were not favorable for landing on the primary runway for which the ' procedure was designed. The surfaces which protect the Circle-to-Land consist of horizontal circular surfaces that extend from the end of each runway.The radius of each circle is dependent on the category of aircraft utilizing the Circle-to-Land approach. A project would not impact the Circle-to-Land protected airspace if it does not penetrate the OCS described above. The proposed expansion project would not penetrate the OCS and,therefore,would not have an adverse impact on Circle-to-Land procedures at SCK. The Initial Climb Area(ICA) associated with SCK's departure procedures was analyzed, using SCK's standard Climb Gradient of 200 feet per Nautical Mile(NM) for aircraft departing Runway 11L. Neither portion of the proposed project would penetrate this ICA or have an adverse impact on departure procedures at SCK. An analysis of SCK's Visual Flight Rule (VFR)Traffic Pattern Airspace was completed to determine the maximum elevation to which a landfill could be erected without impacting aircraft operating in visual conditions at SCK. Neither portion of the proposed project would penetrate the VFR Traffic Pattern for SCK. In summary, the proposed final grades of the 2018 Expansion Project would not(a) penetrate obstruction criteria for Stockton Metropolitan Airport(SCK), (b)penetrate Obstacle Clearance Surfaces(OCS) or Circle-to-Land Obstacle Clearance Surfaces (OCS),or have an adverse impact on arrival procedures at SCK, (c)have an adverse impact on departure procedures at SCK, or (d)penetrate the Visual Flight Rule(VFR)Traffic Pattern for SCK. (Williams Aviation Consultants,2017). Therefore, the final grades of the proposed expansion project would have a less-than-significant impact on safety due to conflict with FAR height limits or the airport imaginary space. However,when the two expansion areas have been filled to an elevation near their permitted heights,equipment operating on top of the landfill could temporarily intrude into the conical space. Forward would continue its procedure of submitting a Notice of Proposed Construction or Alteration(FAA Form 7460-1) at least 45 days prior to operation of any equipment that could temporarily intrude into the imaginary surface, as required by the Federal Aviation Administration(FAA) for all proposed construction or alterations that could intrude into the airport imaginary surface. The FAA would then issue a Notice to Airmen(NOTAM)notifying pilots of the temporary intrusion into the airspace. This would reduce the impact of operating equipment on the conical space to a less-than-significant level.