Stormwater Treatment; Defining the terms “compensating stormwater treatment” and “total land area”; requiring compensating stormwater treatment to comply with certain provisions unless certain circumstances exist; explaining the types of mitigation measures for compensating stormwater treatment that the Department of Environmental Protection or a water management district governing board must consider under certain circumstances; authorizing mitigation measures or enhancement credits intended to address certain impacts to be generated by certain entities and sold only to certain environmental resource permit applicants, etc.