8.4 Measures for Working in Areas of Suspected or Unexpectedly Found Contamination
104
Risk of exposure of site workers to contaminants at sites where contamination is suspected or unexpectedly found will be minimised through the adoption of good practice procedures as described in guidance documents such as the Protection of Workers and the General Public during the Development of Contaminated Land. HSE, 1991 and A Guide for Safe Working on Contaminated Sites, R132, CIRIA 1996.
105 Prior to work being undertaken that may have an effect on workers, the public or the environment, an approved site specific Risk Assessment and Method Statement (RAMS) must be completed. The Risk Assessment will identify risks associated with the proposed work at the site together with mitigation measures to adequately address the risks and embed these in the work Method Statement.
106 Mitigation measures working at contaminated sites are likely to include generic controls such as defining, demarcating and isolating the working area, use of designated access and egress routes, provision of hygiene facilities and maintenance of high hygiene standards, provision of first aid facilities and provision and use of appropriate PPE, together with any specific measures required and relating to the particular site environment.
107 Where required, provision will be made for the safe storage of contaminated materials at designated locations. Where disposal of contaminated material is required, it is proposed that advice will be sought from suitably qualified environmental consultants who will advise on the best method of disposal (e.g. licensed landfill, tanker for liquids). Transfers will be undertaken by registered waste carriers to authorised disposal sites in accordance with Duty of Care requirements.
108 Where material is been removed from site due to contamination it will be undertaken in a manner to prevent the generation of pathways and the egress of pollutants from the site. Appropriate and clean replacement fill material will be imported to site and where necessary, fill material will be analysed prior to import to site to ensure that it is suitable for use.
9 9.1 109
Oils, Fuels and Chemicals Objectives
The main objectives with regard to managing potential hazardous materials are:
Ensure that appropriate measures are in place to prevent hazardous materials being released into the environment:
Outline Code of Construction Practice . Version 3. Page 32
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