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Southwestern Landfill Environmental Assessment

Draft EA

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Draft EA Document

Your Input Matters

Ontario has a significant shortage of landfill capacity.  The proper disposal of waste is critical to the safety of our communities, the environment and our economy.

Walker is undertaking an Environmental Assessment (EA) for the proposed Southwestern Landfill site in the Township of Zorra, Oxford County.

The Environmental Assessment process is required by the Ministry of Environment, Conservation and Parks to promote good environmental planning and identify any potential effects to the economic, social, cultural and natural environments.

Walker has prepared a draft of the EA for public review. The Draft EA Report incorporates the results of the technical studies undertaken by third-party experts.

We want to hear from you. For more information about upcoming consultation events, please visit our Public Events page.


Key Findings

An Executive Summary of the findings is available for review here (Executive Summary), and the full Draft EA Report can be accessed here (Draft EA Report). Some of the key findings include:

Public Health Icon

Public Health

  • Drinking water will not be impacted; the landfill liner system is designed to be fully protective of groundwater.
  • Air emissions from the landfill will meet provincial standards.
  • County Road 6 can safely accommodate truck traffic from the landfill.
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 Social and Cultural 

  • The landfill will meet provincial standards for odour, with the exception of minimal occurrences with properties within 500 m.
  • Most residents, people driving by the site, or people using public spaces will not be able to see the landfill. Berms or natural vegetation will be used to minimize views.
  • The overall character of the local community is not anticipated to change as a result of the landfill.


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  • The economic benefit of the landfill in the local community will be $349 million in GDP over the life of the landfill.
  • The landfill will provide 104 full-time jobs (direct & indirect) per year for 20 years, which is the equivalent of $173 million in labour income.
  • Local businesses could save $200,000 to $250,000 per year using the landfill as a local disposal option.


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Natural Environment & Resources

  • By locating the landfill in a former quarry, natural features such as agricultural lands, watercourses, woodlands and wetlands will not be displaced.
  • The landfill will result in a significant reduction of Greenhouse Gas emissions, the equivalent of taking 30,000 cars off the road every year, by reducing waste transport to Michigan.
  • The Thames River and other surface water courses will not be impacted by the landfill. Leachate from the landfill will be treated on-site and will meet provincial water quality standards.



Individual Technical Studies

The Draft EA is a cumulative analysis of the highly technical impact studies undertaken by independent experts in their fields. To ensure you are able to access and review this information each report is linked below.

Agriculture Assessment IconAir Quality Assessment IconArchaeology Assessment IconCultural Heritage Assessment IconCumulative Effects Assessment IconEcology Assessment IconEconomic / Financial AssessmentGroundwater Water Assessment IconSurface Water IconHuman Health Risk IconNoise / Vibration Assessment IconSocial Assessment IconTraffic Assessment IconVisual Assessment IconLand Use Assessment IconEnhanced Waste Diversion IconGreenhouse Gas Emissions Assessment Icon