Why should surficial water bodies be monitored after pesticide application?

Surficial water bodies should be monitored after pesticide application primarily to ensure no pesticide contamination has occurred. This monitoring is essential for several reasons. First, it helps protect aquatic ecosystems, as pesticides can be toxic to fish and other aquatic organisms. By regularly checking water bodies, applicators can confirm that pesticide levels remain within safe limits and take action if there is evidence of contamination. This practice not only safeguards environmental health but also supports compliance with regulatory requirements, ensuring that applicators adhere to best management practices designed to minimize the ecological impact of pesticides.