What is required for the application of a pesticide that leaves a residue in waters of the state for controlling mosquitoes?

The application of a pesticide that leaves a residue in waters of the state for controlling mosquitoes requires an NPDES permit. The National Pollutant Discharge Elimination System (NPDES) regulates discharges of pollutants into waterways, including pesticides, to protect water quality and aquatic life. When pesticides are applied in a manner that may result in these substances entering waterways, obtaining an NPDES permit is essential to ensure compliance with environmental regulations and safeguard the ecosystem.

The other options do not provide the necessary regulatory framework for managing pesticide residues in water. OSHA certification relates to workplace safety and health standards, while a pesticide application license focuses on the proper training and certification for individuals applying pesticides, ensuring they adhere to safety and efficacy measures. An environmental impact assessment is a broader evaluation of potential environmental effects of a proposed project but does not specifically address the regulatory requirements for discharge of pesticides into waterways.