COMPLIANCE INFO_1998-2003 - Laserfiche WebLink

Home Browse Search

HOT WORK Hot work may be defined as any operation which -may potentially create a source of ignition. This operation extremely dangerous when conducted anywhere that a flammable and/or explosive atmosphere (or fire hazard) may be present. Because the tanks and pipelines to be removed and scrapped are expected to contain at least some residues of fuel, sources of ignition shall be eliminated during all operations that may interact with tank atmospheres. The scope of work dose not require personnel to perform hot work. For tank removal operations, all tanks shall be inserted using dry ice at 20 lbs. per gallon. Tank atmosphere shall be checked using a properly calibrated combustible gas meter for percent lower explosive limit (%02) prior to removal from the ground. Representative samples shall be taken from various Imations/levels within each tank to ensure that the environment is consistent. Prior to lifting, tank atmosphere must be less than 10 percent LEL (<10%L.EL) and less than 10 percent oxygen (<10®/002). Site -control procedures for this project shall include the establishment of a work site, providing site security to warn of unauthorized access and to secure work location between shifts. Work zones shall be established by the Safety and Health Officer (SHO). Appropriate work zones including an exclusion zone, decontamination statidn and support zone shall be established based on specific conditions of the work site. An exclusion zone will be established around the immediate work area, and shall be clearly marked by a combination of traffic cones, barricades and/or high visibility barrier tape. The exclusion zone shall mark the area where direct handling operations are occurring and where field personnel may be exposed to chemical and physical hazards. Entry into the exclusion zone shall be regulated by the SHO and field Supervisor. No person shall enter an exclusion zone if they are not wearing the required protective clothing and equipment (i.e. Level). All personnel existing an exclusion must pass through the decontamination zone, following the required decontamination procedure. The size and shape of the exclusion zone shall be based on known and anticipated hazards, type of operation being performed, physical and typographical features potential for site emergencies affecting surrounding areas, etc. At the end of each work day, any open excavations shall be temporarily barricaded in all directions with barricades, and all barricades connected by barrier tape. A similar procedure shall apply to stockpile soils. Alternatively, the work area may be secured with chain link fencing. Page 7