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.