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Product ID: 389255EAU
Credit & Course Provided by:

What's that Smell? Sewer System Overflow Prevention and Management

OnDemand Webinar (88 minutes)

This OnDemand Webinar will provide a systematic overview of the technical, management and regulatory issues regarding collection system overflows, both dry weather and wet weather as well as both combined sewer overflows (CSOs) and separate sanitary sewer overflows (SSOs). Information will be provided to help you understand and analyze overflow problems and provide guidance in evaluating and selecting cost-effective strategies to reduce or eliminate them. It is also intended to serve as a planning guide in developing long term control plans for CSO's and overflow mitigation plans for SSO's.

The topics covered in this program represent the crux of the management of sewer system: preventing/controlling overflows. The intent is to provide you with a detailed overview of sources of overflows, mitigation measures and planning techniques to assist their system-wide planning objectives.

Learning Objectives:

  • You will be able to identify sources and causes of overflows.
  • You will be able to discuss system characterization.
  • You will be able to explain system maintenance and management.
  • You will be able to review control strategies.


Eric M. Harold, PE, BCEE, Malcolm Pirnie, the Water Division of ARCADIS


Set the Scene

Sources and Causes of Overflows

• Definition of an Overflow

• Combined Sewer Systems

• Sanitary Sewer Systems (Introduce Inflow/Infiltration)

• Typical Causes (Maintenance Related vs. Capacity)

Regulatory Framework

• Combined Sewer Overflow

• Separate Sanitary Sewer Overflow

• Affordability

System Characterization

• Information Management

• Sewer System Modeling/Characterization

• Water Quality Characterization

System Maintenance and Management

• Maintenance Program Objectives

• Types of Maintenance

Overflow Mitigation Plan Development

• Technologies (CSO/SSO)

• Control Strategies

• Plan Development: Prioritizing, LOC, Affordability

• Post-Construction Monitoring

Case Studies

• CSO Community

• SSO Community

• CSO/SSO Community