Tar-Pamlico River Basin, North Carolina. The state established a total, allowable discharge level for the basin. The state approved a strategy whereby an sssociation of sewage treatment plants can meet this level either by making modifications to their facilities and/or by making a monetary contribution to a voluntary state program that helps farmers reduce nonpoint source pollution. Contributions to this program will begin in September 1992. Fox River, Wisconsin. In 1981 the state of Wisconsin initiated.