RSA 23:1-a Jurisdiction.

I. In addition to the powers conferred upon counties as set forth in RSA 23:1, each such county is hereby empowered to exercise full jurisdiction over the planning, construction, and operation of water supply, sewage collection, and treatment facilities and such other utilities as are essential to the proper maintenance of county buildings and the protection of the public health of the inhabitants of such institutions.
II. Each county is further empowered to exercise jurisdiction over the operation of water supply and sewage collection in such areas adjacent to county buildings as are determined by the department of environmental services to be capable of being served cost effectively within the meaning of federal and state statutes, and which are not served or intended to be