Pretreatment ProgramIn order to protect the health of the public, the City of Ontario and the Inland Empire Utilities Agency (IEUA) operations have developed a Wastewater Pretreatment Program. Report a Sewer SpillCall OMUC at (909) 395-2678 Mon-Fri 7:30AM-4:30PM If after hours, call the Police Department at 911 Industrial Wastewater Applications Commercial and Industrial Wastewater Permit Application Supplemental Wastewater Permit Application (Pharmaceuticals) Vehicle Service Establishment (VSE) Wastewater Permit Application Dental Office One-Time Compliance Report Guides for Specific Industries (Coming Soon) Food and Beverage Processor’s Printer’s Metal Finisher’s Dry Cleaners Pharmaceutical’s City’s Standard Drawings Pretreatement FAQ’s and Answers
