Permitted Industrial User

Post

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

Guidelines for Discharging Industrial Wastewater

Industrial User Permit Forms

Here are the most commonly used permit application forms for Industrial Users.

Industrial User Permit Application: Baseline Monitoring Report (BMR) Instruction Sheet
Industrial User Permit Application: Baseline Monitoring Report (BMR)
Periodic Compliance Report (PCR) form

General Information

Pretreatment and compliance measures guidelines, as well as details on fees and enforcement.


Criteria and Determination of Significant Non-Compliance
Compliance Sampling and Analysis
Guidelines for preparing a Slug Discharge Prevention and Contingency (SDPC) Plan
Approved Wastewater Methods and Holding Times
General Discharge Prohibitions
Permit Fees
Enforcement

Dental Practices

Dental practices are now a permitted industry; please refer to the following documents for detailed information.

Dental BMPs
Dental BMPs Detailed
Link to a List of Approved Amalgam Separators
Dental Practice Inventory Report Form
Dental Permit Periodic Compliance Report (PCR)
Amalgam Separator Installation Self-Certification Form
FAQs for Dentists
Dental Links

Mobile Washers

Mobile washers are now a permitted industry; please refer to the following documents for detailed information.

Mobile Washer Fact Sheet
Mobile Washer Periodic Compliance Report
Mobile Washer Permit Application

Best Management Practices (BMP) Class III Permit

BMPs to prevent, manage, store and manage materials and waste at your place of business.

Best Management Practices Permit Application
Best Management Practices Permit Fact Sheet
Best Management Practices Permit Periodic Compliance Report

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.

What’s Covered?

  • 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.