Industrial Pretreatment
Water Quality Protection
The Pretreatment Program is a cooperative effort of State, Federal, and local regulatory agencies established to protect water quality. Title 40 Code of Federal Regulations (CFR) Part 403, provides the regulatory basis to require non-domestic discharges to comply with pretreatment standards.The program helps prevent the pollutants that can cause damages or pass through our wastewater treatment plants from entering the publicly owned treatment works (POTW).
Purpose
The purpose of the Industrial Pretreatment Program is to:- Protect the POTW
- Protect health and safety
- Prevent non-compliance with permits
- Protect receiving waters
- Improve opportunities for wastewater and bio solids reuse
Permit Requirements
Users subject to permitting are classified as:- Significant Industrial User (SIU) is one who is one of the following:
- Is subject to USEPA categorical pretreatment standards
- Discharges 25,000 gallons per day or more of process wastewater
- Contributes a process waste stream that makes up 5% or more of the average dry weather hydraulic or organic capacity of the treatment plant
- Has the potential to adversely affect the treatment plant
- Categorical Industrial User (CIU) is one who is one of the following:
- Has an industrial activity that is regulated by - (40 CFR Parts 401-424 and 425-471)
- Discharges process wastewater
- Is assigned pretreatment limitations and/or reporting requirements
- A CIU must comply with categorical pretreatment standards and local limits