Skip to main content

WERF: Peak RDII Flow Reduction: Case Studies And Protocol

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

This paper describes the research conduced under WERF project 99-WWF-8. The purpose of that research project was to examine construction projects for the reduction of rainfall derived infiltration and inflow (RDII) and document their success. The research began with a literature search of all published records describing RDII removal projects. The search initially identified many potential projects. Subsequent evaluation of available information revealed that relatively few projects described in the literature maintained adequate data for a detailed, independent assessment or confirmation of results. Accordingly, a major recommendation of the WERF report was to establish a standard protocol for documenting RDII removal projects.

Projects with sufficient information describing the conditions prior to the RDII-reduction project received a detailed analysis in the WERF project. In all, 12 case studies from six agencies presented in the WERF report document before and after RDII levels, quantify the RDII reduction achieved, and the cost-effectiveness of the removal. This paper presents the case studies and the results achieved. In addition, this paper presents results from four additional case studies examined after preparation of the final WERF report. The WERF research method is described in detail elsewhere (Lukas and Merrill, 2001; WERF, 2003).

The projects examined include both those that “successfully” reduced peak RDII and those that did not. Our general conclusion is that utilities run the risk of not removing significant RDII unless the the projects address private sewer laterals. The only cases examined where significant RDII was removed addressed private sewers or inflow sources. This paper discusses the techniques used in the case studies, the results achieved, and measurements of cost-effectiveness. Table A-1 summaries the projects by type of construction and results achieved.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Publication date: 2004-01-01

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more