Industrial Pretreatment

Ventura Water Environmental Compliance implements a pretreatment program in accordance with the Waste Discharge Requirements of Order R4-2020-0024, NPDES NO. CA0053651. The purpose of the industrial pretreatment and source control program is to ensure non-domestic wastewater dischargers meet federal state and local discharge limits by performing site inspections, industrial discharge sampling, monitoring, and self-monitoring report review.

What is an Non-domestic Wastewater Discharge Permit?

• A permit that authorizes a facility to discharge wastewater to the sanitary sewer system within legal limits and specific conditions.
• A non-transferable permit that is issued to an individual user for a specific operation.

Who should apply?

An industry should apply if they meet any of the following requirements:

• Has processes subject to categorical pretreatment standards from the Code of Federal Regulations Sections: 405 to 471. This also includes “Zero Discharge Categorical User,” an industrial facility that has any connection to the sanitary sewer system but does not discharge wastewater from the categorical process to the sanitary sewer.
• Discharges an average of 25,000 gallons per day or more of process wastewater to the sanitary system (excluding sanitary, noncontact cooling and boiler blowdown wastewater).
• Any industrial user designated by the City to adversely impact the sewer system.

Wastewater Discharge Permit Application

• Non-Domestic Wastewater Discharge Permit Application (PDF)

Additional Information:

• Division 22 - Public Utilities, Part 2 - Sewer Service
• Industrial Wastewater Prohibited Discharge Standards (PDF)