W. Va. Code § 8-16-25
The power and authority herein granted shall be in addition to and not in derogation of any power and authority vested in any municipality under any constitutional, statutory or charter provisions which may now or hereafter be in effect. For all purposes of this article, municipalities shall have jurisdiction for ten miles outside of the corporate limits thereof, except where such zone would overlap with the zone of another municipality, in which event the meridian line of the overlapping zone shall be the dividing line of their respective jurisdictions, except that one municipality shall have jurisdiction within such ten-mile zone and may overlap into the zone of another municipality or municipalities with the consent thereof.
W. Va. Code § 8-16-25