The Industrial Pretreatment Program helps enforce the City's Sewer Use Ordinance. This program makes sure businesses use the sewer system safely and follow the law.

City staff monitor, inspect, and review how businesses use the sewer system. This work helps protect the environment and keeps the City’s sewer system and treatment facilities working properly. 

What We do

• Check how businesses discharge wastewater
• Inspect facilities and review sewer use
• Help prevent pollution in the sewer system

 Education and Outreach

The program also provides easy-to-understand materials to help businesses prevent pollution. Staff work with business owners and employees to explain what is required by federal and state laws.

These efforts help protect the Water Quality Control Plant and prevent harmful or illegal discharges into the sewer system and the environment.

For more information on our Industrial Pretreatment Program, visit the City's Industrial Pretreatment webpage, or email Environmental Compliance. 

The Stormwater Quality Management Program works towards protecting water quality and our local environment by preventing stormwater pollution and ensuring compliance with our National Pollutant Discharge Elimination System (NPDES) permit (view NPDES Permit NO. CAS004004 PDF) issued by the Los Angeles Regional Water Quality Control Board. This includes providing public outreach and education, conducting industrial/commercial stormwater inspections, responding to and eliminating illicit discharges, and overseeing public agency stormwater activities.

The City also collaborates with the Ventura Countywide Stormwater Quality Management Program on countywide stormwater projects and MS4 permit requirements, such as water quality monitoring.

For more information on our Stormwater Program, visit the City's Stormwater Quality Management webpage, or email Environmental Compliance. You can also call the Environmental Compliance Division Hotline at (805) 583-6420.

The Hazardous Materials Program includes the Household Hazardous Waste Drop-off Program for residential hazardous waste disposal, the hazardous materials disposal services for City operations, hazardous materials emergency response services, and Hazardous Materials Awareness and First Responder training to City employees.

For more information about our Hazardous Materials Program or the Household Hazardous Waste Drop-off Program, visit the City's Hazardous Materials webpage.

The City of Simi Valley is dedicated to having high quality solid waste collection services in order to continue to reduce the amount of trash sent to the Simi Valley Landfill and Recycling Center. Reducing waste can only be completed with active participants.

All local residents, businesses, and government agencies play an important role in making Simi Valley’s waste collection work by being informed to properly use their carts or bins to separate recyclable materials, green/food waste, and trash.

For more information on our Solid Waste Services Program, visit the City's Solid Waste Services webpage.

The Water Conservation Program implements the City's and Waterworks District No. 8's Water Conservation Ordinances. Sustained water use efficiency can help reduce the impact of long-term water delivery shortages due to Sacramento-San Joaquin River Delta restrictions.

For information on water rebates, water wise gardening, water-saving tips, and more, visit the City's Water Conservation webpage, or email Water Conservation. You can also call the Environmental Compliance Division Hotline at (805) 583-6420.