(1)    Any permittee discharging pollutants into the waters of the state shall report to the department any facility expansion, production increases, or process modifications which result in new or increased discharges of pollutants exceeding the terms of the permit. Such report shall be by submission of a new permit application or, if the new or increased discharge does not violate the effluent limitations specified in the permit, by submission of notice to the department of the nature of such new or increased discharge. The form and content of such notice shall be prescribed by departmental rule.

   (2)   Any person discharging, or intending to begin discharging, into a publicly owned treatment works who is or will become subject to the discharge reporting requirements of s. 283.37 (4), shall give notice to the department and the owner or operator of such works the following:

      (a)    Any introduction of pollutants into such treatment works from any new source; or

      (b)    Any types or volumes of pollutants being introduced into such treatment works which were not described in the report submitted under s. 283.37 (4).

   (3)   The owner or operator of a publicly owned treatment works receiving a notice under sub. (2) is subject to sub. (1), and shall also include information on the quality and quantity of effluent to be introduced into such treatment works and any anticipated impact of such pollutants on the quantity or quality of effluent to be discharged from such works.

   (4)   Notice of a new or increased discharge submitted to the department under this section shall be given at least 180 days prior to the date such new or increased discharge shall commence. The department, through the department of justice as provided under s. 283.89, may enforce violations of this section directly against persons subject to s. 283.37 (4).