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         Best Management Practices

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Phase II requirements for regulated small MS4 operators

The Phase II Rule requires an operator of a regulated small MS4 to apply for a RIPDES permit. The RIPDES application or NOI must include a Storm Water Management Program Plan (SWMPP) that describes the Best Management Practices (BMPs) for each of the following six minimum measures:

The SWMPP must contain the measurable goals for each minimum control measure (narrative or numeric, used to measure the success of the program) as well as an implementation schedule including interim milestones and frequency of activities and reporting of results. The Director can also require additional permit requirements based on the recommendations of a Total Maximum Daily Load (TMDL). For more information on TMDLs, visit the Office of Water Resources TMDL Program site.



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EPA Measurable Goals Guidance for Phase II Small MS4s

EPA National Menu of BMPs for Storm Water Phase II

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EPA Storm Water Phase II Compliance Assistance Guide

For General Information 222-6800 • After Hours Emergencies 222-3070 • Disclaimer
rev. 2/11/03