What is one function of a local pretreatment program?

One function of a local pretreatment program is to deny permission for pollutants from industrial users (IUs) to discharge into the public sewer system if those pollutants could interfere with the operation of the wastewater treatment plant, could pose a risk to health and safety, or could violate local, state, or federal regulations. This is essential for protecting the integrity of the wastewater treatment process and ensuring compliance with environmental standards. By controlling what IUs can discharge, the program helps maintain water quality and safeguard the environment from harmful discharges.

The other choices do not align with the primary responsibilities of a local pretreatment program. Providing financial help to industrial users, reducing permit fees, or organizing local clean-up events are not standard functions of these programs, which primarily focus on monitoring and regulating discharges to protect the wastewater treatment process and meet legal requirements.