Permitted Industrial User
Central San’s Environmental Compliance Section uses the Industrial User (IU) Permitting Program to oversee individual facilities or a group of businesses. This is to ensure that wastewater discharge quality remains within permitted limits. IU Permits require the keeping of specific operation and maintenance, development of spill response plans, filing of compliance certification reports, and monitoring of discharge quality. Central San uses the IU classification process to determine the proper oversight for a particular business activity. Some types of businesses are subject to Federal pretreatment standards and must be classified as a Significant Industrial User (e.g., plating operations, circuit-board manufacturing). Other types of business activities are eligible for permitting under the Special Discharge Permitting program (e.g., groundwater remediation projects).
In order to assist permitted businesses to understand and comply with the IU Permit requirements, the following information is available:
Guidelines for Discharging Industrial Wastewater
Industrial User Permit Forms
Here are the most commonly used permit application forms for Industrial Users.
Pretreatment and compliance guidelines, as well as details on fees and enforcement.
Environmental Compliance Fees: Ordinance 302 (link to Rates & Fees page)
Mobile washers are now a permitted industry; please refer to the following documents for detailed information.
Pollution Prevention Training Program for Surface Cleaners (BASMAA) (link to BASMAA website)
Vehicle Service: Best Management Practices (BMP) Class III Permit
BMPs to prevent, manage, store and manage materials and waste at your place of business.
The Industrial User (IU) Academy
The IU Academy is conducted by Central San to help you understand your business’s industrial user wastewater discharge permit. It’s an opportunity to learn why the permit is important, how it’s enforced, and what you can do to achieve compliance.
- Central San Overview
- Federal Regulations, Local Limits & Ordinances
- Pretreatment Program & Storm Water
- Treatment Plant Tour
- Classes of Permits, Processing & Fees
- Permit Elements & Reporting Requirements
- Pollution Prevention & Best Management Practices
- Compliance Inspections
- Types of Enforcement
- Significant Non-Compliance
- Local Discharge Limits
- Sampling Techniques
- Reading Lab Reports
- Types of Pretreatment and Monitoring
- Maintaining Pretreatment Systems
For more information, please call Senior Environmental Compliance Inspector Colleen Henry at (925) 229-7347.
2018 Industrial User Academy
Central San was pleased to offer the Industrial User Academy on Thursday, October 25, 2018. The following presentations were Pre-Academy Study Sessions that were viewed prior to attending the Academy to enhance attendee’s knowledge and maximize our time on the day of the Academy:
Please stay tuned for future Industrial User Academies!