Nothing contained in this article shall be construed to affect the authority of the Department of Environmental Protection pursuant to the provisions of this chapter, nor the authority of the Division of Health pursuant to the provisions of chapter sixteen of this code. Facilities discharging into the Potomac River watershed and its tributaries shall be designed to achieve nutrient reductions, for both Nitrogen and Phosphorus, consistent with West Virginia's participation in the Chesapeake Bay Program upon implementation of the Chesapeake Bay standards by the Secretary.