Routine Inspection & Monitoring

• Conduct inspections and unannounced monitoring of Significant Industrial Users (Categorical and Non-Categorical) at least once each semi-annual period.
• Monitor remediation sites at least twice a year.
• Inspect chemical descaling operations at least once at every job site.
• Sample each load of hauled liquid waste discharged at the City's approved receiving station.
• Inspect every construction or renovation project that could potentially impact pretreatment device performance or discharge standard compliance.

Other monitoring and inspection activities are conducted on an as-needed basis to investigate problems or unusual conditions in the wastewater collection or treatment system. They may also be a part of an investigation regarding suspicious activity or illegal dumping.

If you have any question about any suspicious discharge to the sanitary sewer, please contact the Pretreatment Program. Your assistance would be appreciated and your confidentiality respected.