AECOM Report B&W - N - City of Guelph

City of Guelph2008 Annual ReportClosed Eastview Road Landfill SiteExecutive SummaryThe following table presents a summary of the 2008 Annual Report for the Closed Eastview Road LandfillSite. The landfill is operated under two Certificates of Approval (C of A):a) Amended Provisional Certificate of Approval for a Waste Disposal Site No. A170101 under theEnvironmental Protection Act for the general landfill construction and operation (most recentlyamended on June 13, 2005 for Post Closure).b) Certificate of Approval (Sewage) No. 3-0048-90-006 under the Ontario Water Resources Actfor the leachate collection system.Each C of A specifies annual reporting requirements. These have been outlined in the left-hand columnsbelow, while the right-hand columns provide a summary of the 2008 findings as well as a reference to thesection of this report where the reader will find further details.A. Provisional C of A No. A170101 for the Waste Disposal SiteSurface Water, Stormwater, Groundwater and Landfill Gas MonitoringC of A Reporting Requirement11.1 The data collected from the previous year’smonitoring programs for the Site.11.1.1 Analysis and interpretation of the results of theapproved surface water, stormwater,groundwater and landfill gas monitoringprograms.Report Reference and Summary• Surface and Stormwater - See Section 5.0, associated Tablesand Figures, Appendix C• Groundwater – See Section 4.0, associated Tables and Figures,Appendix A, C, and D• Ambient Air - See Section 7.0, associated tables and Figures,Appendix F.• Landfill Gas - See Sections 3.8 and 6.0, associated Tables,Appendix E.• Surface and Stormwater‣ Surface water sampling continues to indicate no adverseaffects on downstream quality. (Section 5.4).• Groundwater‣ Groundwater flow is similar to previous years (Section 4.2).Downward flow through the till, beneath the landfill, is onlya few centimetres per year.• Leachate quality in the waste and the outwash below the wasteis similar to previous years (Section 4.3).• Shallow groundwater quality remains similar to previous years.As the PLCCS continues to operate as designed preventing offsiteleachate escape, no new exceedances of Reasonable Useare predicted in the shallow groundwater (Section 4.4).• Lower till groundwater quality is similar to previous years andshows no indication of leachate contamination. Section 4.5.2.2).• Bedrock groundwater quality is similar to previous years andshows no indication of leachate impacts. Reasonable Use is not(111414_2ra_apr29-09_city_of_guelph.doc) - i -