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National Pollutant Discharge Elimination System (NPDES)

 

Welcome to the NPDES Stormwater Program homepage!

To continue obtaining your NPDES stormwater permit coverage electronically, please read our Letter to iNOI Users, and follow the instructions on how to register for the DEP Business Portal.


Interactive Notice of Intent

(iNOI) iNOI is a web-based application that allows you to complete, edit and submit NOTs, MSGP, CGP and NEX NOIs online.

Urban stormwater runnoff flowing over a curb.

The U.S. Environmental Protection Agency (EPA) developed the federal National Pollutant Discharge Elimination System (NPDES) stormwater permitting program in two phases. Phase I, promulgated in 1990, addresses the following sources:

  • "Large" and "medium" municipal separate storm sewer systems (MS4s) located in incorporated places and counties with populations of 100,000 or more, and
  • Eleven categories of industrial activity, one of which is large construction activity that disturbs 5 or more acres of land.

Phase II, promulgated in 1999, addresses additional sources, including MS4s not regulated under Phase I, and small construction activity disturbing between 1 and 5 acres.

In October 2000, EPA authorized the Florida Department of Environmental Protection (DEP) to implement the NPDES stormwater permitting program in the State of Florida (in all areas except Indian Country lands). DEP's authority to administer the NPDES program is set forth in Section 403.0885, Florida Statutes (F.S.). The NPDES stormwater program regulates point source discharges of stormwater into surface waters of the State of Florida from certain municipal, industrial and construction activities. As the NPDES stormwater permitting authority, DEP is responsible for promulgating rules and issuing permits, managing and reviewing permit applications, and performing compliance and enforcement activities.

Important note: The NPDES stormwater permitting program is separate from the State's stormwater/environmental resource permitting programs authorized by Part IV, Chapter 373, F.S. (593 KB) and implemented by DEP and the water management districts using these rules, and from local stormwater/water quality programs, which have their own regulations and permitting requirements.

The sources of stormwater discharges regulated under the NPDES program fall into three categories. Follow the links to the right for more information on each.

Program Areas 

Quick Reference Links 

Rule Development Documents

62-620 and 62-621.300

62-624


OCULUS (Electronic Document Management)


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Last updated: November 26, 2013

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