What is controlled by the surface water protection regulations set by the Department of Regulation?

The surface water protection regulations established by the Department of Pesticide Regulation (DPR) in California primarily focus on preventing contamination and protecting water resources from pesticide exposure. This includes managing how pesticides are applied, particularly in terms of runoff and drift, to minimize their impact on nearby water bodies during critical periods, such as the dormant season when many pesticides are used.

By focusing on runoff and drift, these regulations address the potential for pesticides to enter surface waters through water flow or air movement, ultimately safeguarding aquatic ecosystems and drinking water supplies. This aspect is crucial in maintaining environmental standards and public health, highlighting the importance of responsible pesticide application practices.

The other options, while important in their own right, do not directly pertain to the specific focus of surface water protection regulations. They deal with other aspects of pesticide management, such as storage, labeling, and disposal, which although regulated, are not the primary concern of the surface water protection framework.