(1) The department shall:
(a) adopt pretreatment standards for wastewater discharged into a municipal disposal system;
(b) adopt effluent standards as defined in 75-5-103;
(c) adopt toxic effluent standards and prohibitions;
(d) establish standards of performance for new point source discharges; and
(e) adopt rules necessary to ensure the primacy of the department to regulate cooling water intake structures under 33 U.S.C. 1326(b).
(2) In taking action under subsection (1), the department shall ensure that the standards are cost-effective and economically, environmentally, and technologically feasible.