New Castle County v. Mayor of New Castle

HERRMANN, Chief Justice:

The City of New Castle sought a declaratory judgment in the Court of Chancery as to the validity of a 1975 New Castle County Ordinance increasing the sewer service rates charged to the City and its residents. This increase, the City argued, was in violation of a 1950 Agreement between the City and the County which provided for the interconnection of the City and County sewage systems and established the rate which the City would charge its residents and turn over to the County.1

The County challenged the rate provisions of the Agreement, claiming that the *190provisions…