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Norton Engineering Inc.

We love sewers.

New sewers in Ontario are leaking unacceptably (2015)

In 2015, Norton initiated a project to address the issue of I/I in new subdivisions. We started by collecting flow monitoring data from new subdivisions across Ontario, to see if my experience locally in Woolwich (see WEAO, 2007) was perhaps happening elsewhere. Results were alarming. See results at left, of 35 subdivisions reporting from across Ontario, different municipalities, consultants and contractors. Ninety-eight (98%) of them were leaking unacceptably. See Norton Publication, "Project to Address I/I in New Subdivisions, 2017).

This work engendered a new term, coined by Norton: "leak acceptable". 

We aren't doing the inspections and testing specified
in our own standards and specifications

From 2016, the research expanded to answer the next question:  why are new sewers leaking?  A survey of about 150 municipalities in Ontario over three years revealed a shocking result. We are not performing the sewer tests that are required per our own standards and specifications. See Norton Publication, "Manual to Address Risk of I/I in Public Side New Construction", 2019.