Controlling Odour and Corrosion in the Collection System: Region of Peel's Trunk Sewer Odour and Corrosion Control Master Plan

The Region of Peel (population 2.3 million, located west of Toronto, Canada) had multiple odour and corrosion problems in its collection system ranging from extensive areas of light damage to isolated pockets of severe corrosion. In an effort to be pro-active in solving its odour and corrosion problems, the Region of Peel commissioned a comprehensive odour and corrosion control strategy/master plan for its entire 155 mile (250 km) trunk collection system. The master plan not only addressed the current odour and corrosion issues but also focused on the preparation of design guidelines to ensure that future changes would help to protect the system from corrosion and would prevent odour issues as the system evolves and expands. The results of these efforts were used to create a Region wide odour and corrosion control master plan presented in terms of short-term and long-term capital improvement requirements.