Gravel Quarry Update #4 – Summary of Requirements

We received this summary of the requirement that the P3 contractor must follow in operating and building the gravel pit.

  • Hours of operation limited to 8AM to 8PM Monday to Saturday and 9AM to 8PM on Sunday and Statutory Holidays.
  • Noise levels will not exceed 65 dBA Leq measured from the residential property line.  If exceeded, the contractor must implement noise mitigation measures.
  • Must maintain at least three noise monitoring stations, and reports provided to the Province on a monthly basis.
  • Must take all necessary steps to limit dust from pit operations to below the levels required by environmental legislation, or as can be reasonably expected for a residential area.
  • Must maintain at least three air quality monitoring stations, and reports provided to the Province on a monthly basis.
  • Aggregate can only be used for the SW Calgary Ring Road project.
  • Berms must be installed adjacent to the residential area and appropriately seeded.  The berms must be four metres high with a 3:1 side slope and three metre wide rounded crest.
  • A 10 metre buffer zone is left between the berm and the residential property line, and a 3 metre wide drainage swale must be constructed to prevent stormwater from leaving the TUC.
  • A buffer of existing trees was kept in between the pit and the residences, where trees were pre-existing.
  • New trees to be planted along the berm.
  • A security fence must be installed around the pit.
  • A haul road will be built between the pit and the SW Calgary Ring Road project area to separate fully loaded dump trucks from public roadways.
  • Processing and stockpiling operations must be moved to the pit bottom as excavation progresses to reduce visual, noise and dust pollution.
  • A Reclamation Certificate from Alberta Environment and Parks is required upon completion of reclamation.






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