Session A2


Post Construction Stormwater Management

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Stanley Polivick, P.E.
City of Cape Girardeau

Abstract

This presentation focuses on the MS4 Regulations for Post Construction Storm Water Management. It briefly discusses the historical and common current responses to required Post Construction Stormwater Management practices. The bulk of the presentation covers the Design Elements necessary for compliance with the MS4 requirements. Major emphasis is placed on inclusive discussions with local government staff in the early stages of conceptual layout for a site. Also covered in the Design Elements section is a broad list of various practices that can be used to improve water quality and control runoff quantity. Maintenance of Post Construction Stormwater Management practices implemented on a site is another major topic covered in the presentation. This includes permit requirements and specific tasks related to different practices.

The overall intent of the presentation is to:

  • Emphasize the importance of Post Construction Stormwater Management in legal terms and in terms of environmentally wise community development strategies.
  • Emphasize the importance of cooperation between the developer / designer/ contractor/ and local government staff.
  • Provide specific information about the design process and elements
  • Provide specific information about the importance of operation and maintenance of the elements
  • Emphasize the need to connect the demands for economic development and the demands for environmental responsibility.

The presentation is about 45 minutes in length.

This presentation was given at the Cape & Jackson Storm Water Workshop on July 23, 2009.

 


Introduction to the Phase II, MS4 Permit and an overview of the City of Jackson’s stormwater ordinances.

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Kent Peetz, P.E., City Engineer
City of Jackson, Missouri

Abstract

This presentation offers an introduction to the Stormwater Phase II, Municipal Separate Storm Sewer System (MS4) permit, why it focuses on stormwater quality, and how cities are overhauling their ordinances and enforcement actions to comply. Historical references are compared to local issues, showing how everyone can have a stormwater issue whether they know it or not. The discussion will highlight why many of the things required by the MS4 permits can actually save developers time and money by using modern best management practices (BMPs) that last longer and require less maintenance, or how replacing “hard” structures with “green” conveyances can reduce costs. The six Minimum Control Measures (MCMs) required by the MS4 permit are discussed, as well as how the permit holders are to enforce them. Post-Construction Runoff Control is explored in detail since it has the greatest potential for long-term impact on water quality. New water quality BMPs are discussed and contrasted with stormwater runoff volume controls that have historically been used. The City of Jackson’s stormwater ordinances will be presented and discussed in relation to how they meet the requirements of the MS4 permit and how they can be modified to encourage better development practices.

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