(a) Regulated Area. All waters of the Milwaukee River from the junction with the Menomonee River at position 43°01′54.9″ N, 087°54′37.6″ W to the East Pleasant St. Bridge at position 43°03′5.7″ N, 087°54′28.1″ W (NAD 83). All waters of the Menomonee River from the North 25th St. Bridge at position 43°01′57.4″ N, 087°56′40.9″ W to the junction with the Milwaukee River (NAD 83).