Y ear: Technology: 2008 Soil Permeation Grouting One component of the City of Ottawa’s ongoing strategy to upgrade its critical infrastructure is the improvement of several overflow chambers making up part of the City’s combined storm/sanitary sewer system. Ex- pansion of the existing Rideau Regulator Chamber, buried deep beneath grade at the foot of the stepped walkway connecting historic Rideau Ca- nal with Canada’s parliament buildings, p

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