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    Complyrpedia is the knowledge base for businesses that are required to comply with California environmental regulations

Industrial Stormwater

Industrial Stormwater

Introduction

Industrial stormwater runoff is a significant environmental problem. Industrial areas are often impervious and collect metals, sediments, debris, organic pollutants, and nutrients. When it rains, these pollutants flush into our waterways and eventually into the ocean. Stormwater is regulated federally under the Clean Water Act (CWA). Under this legislation the U.S. EPA issues National Pollution Discharge Elimination System (NPDES) permits to any entity that discharges polluted stormwater to the navigable waters of the United States. To reduce regulatory burden, the California State Water Resources Control Board (SWRCB) provides general NPDES permits for stormwater discharges associated with industrial activities in the California. For California industrial facilities to be in compliance with the CWA, they must apply for coverage under the current California Industrial General Permit (IGP).

Who Must Apply for IGP Coverage

Facilities Subject to Industrial Stormwater Effluent Limitations Guidelines

New Source Performance Standards, or Toxic Pollutant Effluent Standards Found in 40 Code of Federal Regulations, Chapter I, Subchapter N (Subchapter N):

  • Cement Manufacturing
  • Feedlots
  • Fertilizer Manufacturing
  • Petroleum Refining
  • Phosphate Manufacturing
  • Steam Electric
  • Coal Mining
  • Mineral Mining and Processing
  • Ore Mining and Dressing
  • Asphalt Emulsion
  • Landfills
  • Airport Deicing

Additional Types of Industrial Stormwater Facilities

  • Manufacturing Facilities
  • Oil and Gas/Mining Facilities
  • Hazardous Waste Treatment, Storage, or Disposal Facilities
  • Landfills, Land Application Sites, and Open Dumps
  • Recycling Facilities
  • Steam Electric Power Generating Facilities
  • Transportation Facilities
  • Sewage or Wastewater Treatment Works

Additional information about businesses that must obtain coverage under the IGP can be found in Attachment A of the current IGP.

Required Tasks

Sources

State Water Resource Control Board Industrial Stormwater Permit Page

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