A. 
The Borough is hereby divided into zones, or districts, and antennas as shown on the Official Zoning Maps of the Borough of Sewickley, Maps 1, 2, 3 and 4, which hereafter are referred to as "the Official Zoning Map," together with all explanatory matter thereon, is hereby adopted by reference and declared to be a part of this chapter.[1]
[1]
Editor's Note: The Official Zoning Map, Maps 1 through 4, is included as an attachment to this chapter.
B. 
The Official Zoning Map shall be identified by the signature of the President of the Borough Council, attested by the Borough Manager/Borough Secretary and shall bear the seal of the Borough under the following words: "This is to certify that this is the Official Zoning Map referred to in Ordinance No. 1300 of the Borough of Sewickley, Allegheny County, Pennsylvania," together with the date of adoption of this chapter.
C. 
No changes of any nature shall be made in the Official Zoning Map or matter shown thereon except in conformity with the procedures set forth in this chapter. Any unauthorized change of whatever kind by any person shall be considered a violation of this chapter and punishable as provided under Article XVII of this chapter.
D. 
The Official Zoning Map, which shall be located in Sewickley Borough's Municipal Building Administrative Office, shall be the final authority as to the current zoning status of land and water areas, buildings, and other structures in the Borough.
E. 
Any amendments, legally adopted to change any zoning district boundaries of the Official Zoning Map, shall be noted on said map by ordinance number and date of adoption of the amendment.
F. 
Borough Council may by ordinance update the parcel lines as available from Allegheny County on the Official Zoning Map, noting said date and source on the map.
G. 
Where uncertainty exists as to the boundaries of zoning districts as shown on the Official Zoning Map, the following rules shall apply:
(1) 
The boundaries between zoning districts are, unless otherwise indicated, either the center lines of streets, alleys, rights-of-way, lot lines, railroads, streams or such lines extended, or lines parallel thereto.
(2) 
The water surface and the land under the water surface of all waterways not otherwise zoned are hereby placed in the same zoning district as the land which it abuts as shown on the Official Zoning Map. Where the zoning districts shown on the Official Zoning Map are different on opposite sides of the water area, then the zoning district on each side shall extend to the center line or midpoint of the water area.
(3) 
Where zoning district boundaries are not clearly fixed by the above methods, they shall be determined by the use of the scale of the Official Zoning Map.
H. 
Where a street or alley shown on the Official Zoning Map is hereafter officially vacated by replatting or otherwise, the land formerly in such street or alley right-of-way shall be included within the zoning district of adjoining lot(s) on either side of said vacated street or alley. In the event such street or alley was a district boundary between two or more different zoning districts, the district boundary shall be the former center line of such vacated street or alley.
I. 
When there is disagreement on the location of zoning district boundaries, a decision shall be rendered by the Zoning Hearing Board, which shall have the power and duty of interpreting the intent of said Zoning Map in accordance with the spirit and purpose of the Official Zoning Ordinance.
J. 
Records of all Official Zoning Map amendments are on file in the Borough's Administrative Office.