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The airport reference point, shown on Oshawa Airport Zoning Plan No. 18-013-80-58, Sheet 5, dated June 28, 1984, is a point distant 49.13 m measured southerly at right angles to the centre line of runway 12-30 from a point distant 518.62 m measured westerly along the said centre line from the easterly end of said runway.
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The approach surfaces, shown on Oshawa Airport Zoning Plan No. 18-013-80-58, Sheets 1 to 13, dated June 28, 1984, are surfaces abutting each end of the strips associated with the runways designated 12-30 and 04-22 and are described as follows:
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The outer surface, shown on Oshawa Airport Zoning Plan No. 18-013-80-58, Sheets 1 to 9 inclusive, dated June 28, 1984, is an imaginary surface located at a common plane established at a constant elevation of 45 m above the assigned elevation of the airport reference point except where that common plane is less than 9 m above the surface of the ground, the imaginary surface is located at 9 m above the surface of the ground.
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The strips, as shown on Oshawa Airport Zoning Plan No. 18-013-80-58, Sheet 5, dated June 28, 1984, are described as follows:
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Each transitional surface, shown on Oshawa Airport Zoning Plan No. 18-013-80-58, Sheets 1, 2, 4, 5, 6 and 8, dated June 28, 1984, is a surface consisting of an inclined plane rising at a ratio of 1 m measured vertically to 7 m measured horizontally at right angles to the centre line and the centre line produced of each strip extending upward and outward from the lateral limits of each strip and its approach surfaces to an intersection with the outer surface or another transitional surface of an adjoining strip.
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The boundary of the outer limits of lands, shown on Oshawa Airport Zoning Plan No. 18-013-80-58, Sheets 1 to 13, dated June 28, 1984 are described as follows:
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