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About Our Proposal

The Dundas Quarry has been providing material in this area for approximately 100 years. The products are non-renewable and the currently licensed reserves at the quarry are diminishing. We would like to continue and strengthen our partnership with the community through an expansion of our South Quarry.

The South Quarry Extension (SQE) is proposed for 127 hectares immediately west of our existing Dundas South Quarry, of which 108 ha are proposed for extraction. Protection of our neighbours and the environment are an important part of the licencing process. Following are some of the measures that are proposed to minimize impacts from the SQE:


Lafarge has implemented an extensive groundwater monitoring program and will maintain its existing commitments and ensure that all residential and agricultural water supplies will be protected. If there are any unforeseen impacts from the quarry operation, water supply will be restored at Lafarge’s expense. If any of the neighbours would like to discuss their well conditions or have concerns, Lafarge would be pleased to review the situation.

The proposed site is setback approximately 2km from the Greensville municipal well. The SQE is located outside of the Wellhead Protection Area and the will not negatively impact groundwater quantity or quality at the Greensville Well.


The existing processing area, entrance/exit onto Highway 5 and haul route will continue to be used. A truck crossing is proposed on Moxley Road between Phases 1 and 2, however Moxley Road and Brock Road will not be used as a haul route by Lafarge.


A noise assessment has been completed. All relevant Ministry of the Environment (MOE)_guidelines will be satisfied at closest receptors. The operation will include perimeter berming to attenuate noise. There will also be operational restrictions on time and amount of equipment being used at the quarry to ensure Ministry noise guidelines are satisfied.

Air Quality

An air quality assessment has been completed. Lafarge Dundas currently implements a plan for onsite dust mitigation which has been approved by the MOE. Lafarge Dundas will use the same plan for the SQE, including measures such as watering of internal haul routes, dust control during blasting, reporting, etc.


A blasting impact has been completed. Lafarge Dundas uses the best available technology to conduct blasts and continually makes improvements where possible. All blasts will be monitored in accordance with MOE blasting requirements. Lafarge tries to blast at consistent times during the day in order to establish a consistency in blasting patterns and frequency for the neighbours. If you wish to be notified when a blast is scheduled to occur, please feel free to contact us.


Similar to the existing quarry, acoustic and visual berms will be used to screen the operation and will be built in stages to screen public views. In locations adjacent to our neighbouring residents, the berm will be graded to create diversity and gentler slopes, including planting of trees and shrubs.

Off-Site Agricultural Operations

The barns and structures associated with off-site agricultural operations are located in close proximity to residences on the same properties, and therefore MOE requirements are met for noise and blasting for these structures. Dust control measures will be implemented onsite to minimize dust emissions on neighbouring crops. As noted above agricultural wells will be protected.

Natural Environment

The proposed SQE includes three small wetlands that are classified as not significant and approximately 8.9 ha of eastern meadowlark habitat. The wetlands are allowed to be extracted subject to replacement of similar features as part of the final rehabilitation of the site. The eastern meadowlark habitat is allowed to be extracted subject to replacement of this habitat off-site. There are limited off-site environmental features and the SQE will not negatively impact these features.

Cultural Heritage Resources

Archaeological, built heritage and cultural heritage landscapes were assessed. The residence at 565 Moxley Road will be conserved and Lafarge will install two commemorative displays to document the community history, along with the integration of salvaged materials (intersection of Brock Road and Concession Road 4 West and at 565 Moxley Road). Lafarge will also construct a berm and maintain existing trees around the Glenwood Cemetery to screen the cemetery from the SQE.

The process to apply for site extensions is rigorous and thorough. You can read all of the documents related to this application here.

We understand that you may have questions and concerns. In fact, the most important part of this application process is the opportunity for you to provide input. We welcome you to get in touch with us and/or to attend our Public Information Session on Wednesday February 5, 2014 from 4pm – 7pm at the Greensville Hall located at 283 Brock Road, Greensville, ON.