What action should a PWS take if a sanitary defect is discovered?

A public water system (PWS) must prioritize public health and safety in its operations. When a sanitary defect is discovered, it poses a potential risk for contamination and affects the overall quality of drinking water. Therefore, the appropriate action is to correct all sanitary defects as quickly as possible, ideally within a set timeframe, such as the next month. This prompt response demonstrates the commitment of the PWS to maintain a safe water supply and mitigate any risks that could arise from the defect.

Taking immediate action to rectify sanitary defects helps prevent contamination, protects public health, and aligns with regulatory requirements that govern safe drinking water practices. Effective management of such issues is crucial for maintaining compliance with health standards and ensuring community trust in the water supply.

Other options suggest either delaying action or addressing the defect in a less systematic manner, which could lead to prolonged exposure to potential hazards.