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Phase I MS4 FAQ

Frequently Asked Questions (FAQs)
General FAQ
Construction Activity (CGP) FAQ
Construction with Dewatering FAQ
Industrial Activity (MSGP) FAQ
Phase I MS4 FAQ
Phase II MS4 Generic Permit FAQ
Business Portal (ESSA) FAQ

How long is my NPDES stormwater individual permit valid?

The MS4 individual permits expire after a term of five years, requiring re-application efforts to continue coverage (see Rule 62-624.420 F.A.C.) (Note: Permit effectiveness is continued by the timely filing of a renewal application.)

How do I re-apply for permit coverage?

You may re-apply for permit coverage concurrently with a timely filing of the fourth year annual report, or, as an alternative, you may re-apply by submitting an application 180 days prior to the expiration of the permit. The required contents of a re-application are specified in Rule 62-624.440 F.A.C..

What are the changes I can expect in my new permit?

Changes to the Phase I MS4 permits include:

  1. Re-issued MS4 permits will look more like other NPDES permits issued by the state of Florida. The revised format includes a smaller, more condensed version of the Permit and Fact Sheet that eliminates redundant language.
  2. Re-issued permits do not necessarily require continued dry-weather field screening of outfalls for illicit discharge detection. For the most part, dry-weather field screening in Florida has produced very little in the way of meaningful discoveries of "illicit discharges." While the overall program to prohibit, detect and eliminate illicit discharges is still a vital part of the permit, the requirement for routine and exhaustive dry-weather inspections has largely been eliminated.
  3. However, review of specific permit renewal applications may determine that field screening may be necessary, as determined on a case-by-case basis.
  4. Several different elements of stormwater monitoring were required by federal regulations as part of the application process. The re-issued MS4 permits will consolidate monitoring that is required for the term of the permit. The permittee is directed to work closely with the department, in order to establish a monitoring program that is consistent with the department's watershed approach to addressing surface water quality.

What does "reserved" mean as it appears in my new permit?

When used in a permit, the term "reserved" is simply a place holder to let the permittee know that no requirement is being imposed at this time but some condition or requirement might be imposed in the future for that specific subject area.

NPDES Stormwater Program
Florida Department of Environmental Protection
2600 Blair Stone Road, MS 3585
Tallahassee, FL 32399-2400
Phone: 866-336-6312 (toll-free)

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Last Modified:
June 9, 2022 - 10:53am

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