If the Board or the State Department of Health determines that a receiving stream in the City of Virginia Beach is being polluted by the sewage discharge from a private or public sewage utility and that it is possible to connect such utility to the sewage system of a municipality, sewage treatment authority, or sanitation district, the Board may order the utility in the City of Virginia Beach to stop such discharge into the receiving stream. The utility shall discontinue such discharge within one year of such order by providing either (i) adequate treatment as determined by the Board or the State Department of Health or (ii) a connection to central facilities.