Loading...
HomeMy WebLinkAboutINS-17-019 - Regional Landfill Leachate Forcemain REPORT TO: Community and Infrastructure Services DATE OF MEETING: March 6, 2017 SUBMITTED BY: Steve Allen,Manager Engineering Design and Approvals,519- 741-2200 x 7584 PREPARED BY: Steve Allen,Manager Engineering Design and Approvals,519- 741-2200 x 7584 WARD(S) INVOLVED: Ward 7 DATE OF REPORT: February 23, 2017 REPORT NO.: INS-17-019 SUBJECT: Regional Landfill Leachate Forcemain ___________________________________________________________________________ RECOMMENDATION: THAT the Chief Administrative Officer or a Deputy Chief Administrative Officer be authorized to execute agreements with the Regional Municipality of Waterloo related to the construction, operation and maintenance of a sanitary forcemain for the purposes of Waterloo Landfill to a City of Kitchener sanitary sewer east of Resurrection Park provided that any agreements or ancillary documents are to the satisfaction of the City Solicitor. BACKGROUND: In 2014, the Regional Municipality of Waterloo (Region) completed the preliminary design for the construction of a second Waterloo Landfill leachate forcemain. The existing leachate forcemain conveys leachate from the Waterloo Landfill to the Waterloo Wastewater Treatment Plant (WWTP) via the City of Waterloo sanitary sewer system. The leachate flow from the landfill has nearly reached the City of Waterloo maximum allowable flow and will exceed this allowable flow rate in the near future. Therefore, a second forcemain, that will direct some of the leachate from the Waterloo Landfill to the Kitchener WWTP via the City of Kitchener sanitary sewer system, is required to service the ongoing expansion of the landfill. The Region is seeking approval from the City of Kitchener to run the forcemain within City road allowances and corridors. REPORT: The Waterloo Landfill is located at 925 Erb Street West, Waterloo, and straddles the boundary between the City of Kitchener to the south and the City of Waterloo to the north. *** This information is available in accessible formats upon request. *** Please call 519-741-2345 or TTY 1-866-969-9994 for assistance. 3 - 1 Environmental controls at the Waterloo Landfill include a landfill gas collection system and a leachate collection system. In the present configuration, leachate collected from the landfill is pumped to the City of Waterloo sanitary sewer system on Erb Street, which directs flow to the Waterloo Wastewater Treatment Plant (WWTP). The maximum allowable flow rate to the City of Waterloo sanitary sewer is 15.2 litres/second. As a result of on-going expansion of the Waterloo Landfill which includes the development of future waste cells within the City of Kitchener, the leachate flow from the landfill has almost reached 15.2 litres/second and will increase above this allowable City of Waterloo flow in the near future. The Region completed a preliminary design in 2014 for a second leachate forcemain that will be required to discharge some of the leachate flow from the landfill to the Kitchener WWTP via the City of Kitchener sanitary sewer system located in the Henry Sturm Greenway. (Please see Figure 1) The project is pre-approved under Schedule A+ of the Municipal Class Environmental Assessment as the forcemain will be located entirely within existing municipal road allowances, right-of-ways or utility corridors. The Region will host a public meeting to inform adjacent neighbourhoods about the work and pre-construction notices will be sent in advance of construction to nearby property owners and occupants to inform them of the upcoming construction. The Region is seeking permission from the City of Kitchener to run the forcemain within City road allowances and corridors. The following will be key provisions of any agreements: Cost of construction and maintenance is the responsibility of the Region The City will grant an easement for the construction, maintenance and operation of a sewage forcemain within City owned lands The its review and acceptance of the final plans and specifications The Region will be responsible for full restoration of any disturbed areas The Region will indemnify the City from all costs related to losses and damages except in cases of gross negligence or willful misconduct The Region has responsibility to ameliorate any odour that might be emitted as a result of the installation and maintenance of the new forcemain, for as long as the forcemain is in operation, to the satisfaction of the City. The Region will provide improvements to the trail network such that an existing gap of approximately 50m in the trail will be completed, to City standards any of its property Provisions to protect the City from any negative effects of the leachate on the service life or condition of the receiving sewers will be included. The Region will meter the discharge and compensate the City at the retail sanitary rate. 3 - 2 Figure 1 - Waterloo Landfill Leachate Forcemain Alignment 3 - 3 ALIGNMENT WITH CITY OF KITCHENER STRATEGIC PLAN: vision through the delivery of core service. FINANCIAL IMPLICATIONS: None.The Region is responsible for the cost of the design, construction and maintenance of the forcemain. All City property disturbed by construction will be restored to like or better conditions.The Region will meter the leachate discharge volume and will compensate the City at the retail rate for the discharge. COMMUNITY ENGAGEMENT: INFORM advance of the council / committee meeting.The Region will host a public meeting to inform adjacent neighbourhoods about the work and pre-construction notices willbe sent in advance of construction to nearby property owners and occupants to inform them of the upcoming construction. ACKNOWLEDGED BY: Justin Readman, Interim Executive Director, Infrastructure Services. 3 - 4