(2) New direct discharge of domestic pollutants to tributaries of Class-GPA waters;

(3) Any discharge into a tributary of GPA waters that by itself or in combination with other activities causes water quality degradation that would impair the characteristics and designated uses of downstream GPA waters or causes an increase in the trophic state of those GPA waters except for aquatic pesticide or chemical discharges approved by the department and conducted by the department, the Department of Inland Fisheries and Wildlife or an agent of either agency for the purpose of restoring biological communities affected by an invasive species in the GPA waters or a tributary to the GPA waters;

(4) Discharge of pollutants to waters of the State that imparts color, taste, turbidity, toxicity, radioactivity or other properties that cause those waters to be unsuitable for the designated uses and characteristics ascribed to their class;

(5) Discharge of pollutants to any water of the State that violates sections 465, 465-A and 465-B, except as provided in section 451; causes the "pH" of fresh waters to fall outside of the 6.0 to 8.5 range; or causes the "pH" of estuarine and marine waters to fall outside of the 7.0 to 8.5 range;

(6) New discharges of domestic pollutants to the surface waters of the State that are not conveyed and treated in municipal or quasi-municipal sewage facilities. For the purposes of this subparagraph, "new discharge" means any overboard discharge that was not licensed as of June 1, 1987, except discharges from vessels and those discharges that were in continuous existence for the 12 months preceding June 1, 1987, as demonstrated by the applicant to the department with clear and convincing evidence. The volume of the discharge from an overboard discharge facility that was licensed as of June 1, 1987 is determined by the actual or estimated volume from the facilities connected to the overboard discharge facility during the 12 months preceding June 1, 1987 or the volume allowed by the previous license, whichever is less, unless it is found