Development of Milwaukee Msd's Private Property Infiltration and Inflow Control Program

Gonwa, Willie; Simmons, Thomas F.; Schultz, Nancy U.

doi:10.2175/193864704784107515

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The United States Environmental Protection Agency (2000) mentions that even when pipe materials are more resistant to acids and chemicals, the joints are not. Even though literature indicates that lateral house connections cover 21-47% of the total length of the entire sewer system (Gonwa et al, 2004;Princ & Kohout, 2004), these components contribute 30-55% of the total infiltration (Curtis & Krutsch, 1993;Ellis, 2001;Sullivan et al, 1977;Water Environment Federation, 1999). Several authors reported that the connection with the main sewer is the weakest point (Ellis et al, 2004;Princ & Kohout, 2004).…”

Section: Pipe Collapsementioning

confidence: 99%

Statistical analysis of lateral house connection failure mechanisms

Post

Pothof

Veldhuis

et al. 2015

Urban Water Journal

View full text Add to dashboard Cite

The performance of lateral house connections can have a substantial impact on the overall level of service provided by sewer systems. However, knowledge on the failure probability of these components remains scarce. This paper analyses field data to determine failure rates. A distinction is made between different mechanisms that contribute to the overall failure probability of lateral house connections. Root causes that promote the occurrence of these failure mechanisms are derived from a literature review. Results of a trend analysis shows a time constant failure rate, which exceeds blockage rates reported for main sewers. Fat, oil, and grease deposits are the dominant failure mechanism for both a specific case study in Rotterdam and the Netherlands. Literature suggests misuse and the structural condition as main root causes for this failure mechanism. The sheer number of failures associated with lateral house connections suggests that these components should be taken into account in sewer asset management. ARTICLE HISTORY

show abstract

Section: Pipe Collapsementioning

confidence: 99%