Coquitlam Dam Seismic Upgrade Project ... - BC Hydro

habitats. Restoration of the construction site and borrow areas will ensure that impacts to the
environment are short term in nature. Affected fish habitat will be replaced.
To minimize disturbances and impacts to the surrounding environment during construction, all
the work will be conducted as per the guidelines provided in the DFO/MELP publication “Land
Development Guidelines for the Protection of Aquatic Habitat”. The Contractor is required to
adhere to the guidelines established in this document as listed in the sections of the EMP below.
Generally, the potential environmental issues associated with the Project include the following:
• Sedimentation of streams and the reservoir due to activities associated with site clearing and
excavation;
• Fuel, oil or chemical spills (including concrete/grout leachate);
• Blasting effects from quarry development;
• Waste management;
• Sewage and refuse disposal;
• Loss or degradation of fish habitat; and
• Loss of wildlife habitat related to tree/vegetation removal and ground disturbance.
3.2. CONTRACTOR’S SITE ENVIRONMENTAL PROTECTION PLAN
As detailed in the Tender Documents, (Environmental Requirements), the Contactors are
required to prepare and submit a site-specific Environmental Protection Plans (EPP) for their
work. The EPPs will be required for each of the working areas including the dam site and all
borrow, stockpile and disposal sites. The EPPs will be comprehensive, requiring specific details
on all environmental protection initiatives including mitigation and emergency response
procedures. The EPP should include, but not be limited to, the following items:
• A site plan showing work areas, fuel containment areas and refueling locations, laydown
areas, parking areas, stockpile and disposal areas, topsoil and woody debris stockpile areas,
etc.
• A detailed water handling plan including ditching requirements, site runoff, location of
detention pond(s) and check dams as well as the location of all water exit points and water
quality monitoring locations;
• Sediment and erosion control installations including silt fence and containment berm
locations;
• Waste management plan;
• Dust control plan; and
Coquitlam Dam Seismic Rehabilitation Page 15
Environmental Management Plan – Version 4
June 15, 2004