W. Va. Code § 8-18-6
The governing body of any municipality is hereby empowered and authorized to order and cause to be constructed, within said municipality, or partly within and partly without the corporate limits of said municipality, public, common, lateral, branch and trunk storm and sanitary sewers and sewer systems and combined storm and sanitary sewers or sewer systems, or both, by contract or directly by the municipality, for the benefit of said municipality or any part thereof, and to purchase lands or easements or to condemn lands or easements in the manner provided by law for such sewers or sewer systems. When the governing body shall order and complete the construction of any such sewer or sewer system or any part thereof within said municipality, the property abutting on such sewer or abutting upon any street, alley, public way or easement, or any sewer right-of-way or easement, in which such sewer shall be constructed, or abutting on any street, alley, public way or easement, or any sewer right-of-way or easement, in which any part of such a sewer is constructed, may be charged with all or any part of the cost thereof, including the cost of such sewer or sewer system across intersections of streets, alleys, public ways and easements.
A sewer system shall be deemed to include all of the common sewers whether they be lateral, branch, trunk or combined sewers, which serve to drain a definite drainage area as specified in the order of the governing body directing the work to be done.
In case of a corner lot, or of acreage which has not been divided into lots, frontage which may be assessed shall be measured along the longest dimension thereof abutting on each street, alley, public way or easement, or sewer right-of-way or easement, in which such sewer is laid, but if sewered on two or more sides then such corner lot, or acreage which has not been divided into lots, is to be charged only with the side first sewered unless two hundred feet or more in depth measured from such first sewered side, in which event the corner lot, or acreage which has not been divided into lots, shall be charged only with the footage in excess of two hundred feet. Any lot, or any acreage which has not been divided into lots, having such a depth of two hundred feet or more and abutting on two or more streets, alleys, public ways or easements, or sewer right-of-ways or easements, one in the front and one in the rear of said lot, or said acreage which has not been divided into lots, shall be assessed on both of said streets, alleys, public ways or easements, or sewer right-of-ways or easements, if a sewer is constructed on both such streets, alleys, public ways or easements, or sewer right-of-ways or easements. Where a corner lot, or an acreage which has not been divided into lots, has been assessed on both ends, it shall not be assessed on the side, and where it has been assessed on the side, it shall not be assessed on either end.
In case of corner lots, or acreage which has not been divided into lots, where the cost of sewering along one dimension is not assessed against the owner thereof, and in the case of lots, or acreage, less than two hundred feet deep abutting at each end on a street, alley, public way or easement, or sewer right-of-way or easement, in which a sewer is laid, the cost of sewering along the dimension or end not assessed against the property owner shall in every case be apportioned and assessed against the other property abutting on the streets, alleys, public ways or easements, or sewer right-of-ways or easements, being improved, in the manner of apportionment of the cost of improvements in intersections.
W. Va. Code § 8-18-6