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<br />FIELDWORK HEALTH & SAFETY PLAN (HASP) FOR FIELD INVESTIGATIONS OF PETROLEUM DISTILLATE FUELS
<br />Always look overhead to make sure there are no overhead electrical power lines, trees, canopies, roof- line extensions, or other overhead obstructions.
<br />Equipment, including drill rig mast, may not be any closer than a minimum of 15 feet from electrical utility lines (20 ft. if 200 - 350 kv; 25 ft. if 350 - 500 kv; 35 ft if
<br />500 — 750 kv; and 45 ft if over 750 kv). Check with utility company if in doubt. Be aware of the potential for electrical arcing.
<br />American Public Works Association (AWPA)
<br />Uniform Color Code
<br />Electric power lines, cables or conduits, and lighting cables.
<br />YELLOW !Gas, oil, steam, petroleum or other hazardous liquid or gaseous materials.
<br />Communications, cable TV, alarm or signal lines, cables, or conduits.
<br />!Water, irrigation, and slurry lines.
<br />jsewer�sewer facilities, or other drain lines.
<br />WHITE Proposed excavation
<br />Excavation:
<br />Structural ramps that are used solely by employees as a means of access or egress from excavations shall be designed by a competent person. Structural
<br />ramps used for access or egress of equipment shall be designed by a competent person qualified in structural design, and shall be constructed in accordance
<br />vith the design.
<br />Structural ramps used in lieu of steps shall be provided with cleats or other surface treatments o the top surface to prevent slipping.
<br />Means of egress from trench excavations. A stairway, ladder, ramp or other safe means of egress shall be located in trench excavations that are 4 feet (1.22 m)
<br />or more in depth so as to require no more than 25 feet (7.62 m) of lateral travel for employees.
<br />Exposure to falling loads. No employee shall be permitted underneath loads handled by lifting or digging equipment. Employees shall be required to stand away
<br />from any vehicle being loaded or unloaded to avoid being struck by any spillage or falling materials. Operators may remain in the cabs of vehicles being loaded
<br />or unloaded when the vehicles are equipped, in accordance with 1926.601(b)(6), to provide adequate protection for the operator during loading and unloading
<br />operations.
<br />Warning system for mobile equipment. When mobile equipment is operated adjacent to an excavation, or when such equipment is required to approach the edge
<br />of an excavation, and the operator does not have a clear and direct view of the edge of the excavation, a warning system shall be utilized such as barricades,
<br />hand or mechanical signals, or stop logs. If possible, the grade should be away from the excavation.
<br />Where oxygen deficiency (atmospheres containing less than 19.5 percent oxygen) or a hazardous atmosphere exists or could reasonably be expected to exist,
<br />such as in excavations in landfill areas or excavations in areas where hazardous substances are stored nearby, the atmospheres in the excavation shall be
<br />tested before employees enter excavations greater than 4 feet (1.22 m) in depth.
<br />Adequate precaution shall be taken such as providing ventilation, to prevent employee exposure to an atmosphere containing a concentration of a flammable
<br />gas in excess of 10 percent of the lower flammable limit.
<br />Employees shall not work in excavations in which there is accumulated water, or in excavations in which water is accumulating, unless adequate precautions
<br />have been taken to protect employees against the hazards posed by water accumulation. The precautions necessary to protect employees adequately vary with
<br />each situation, but could include special support or shield systems to protect from cave-ins, water removal to control the level of accumulating water, or use of a
<br />safety harness and lifeline.
<br />If water is controlled or prevented from accumulating by the use of water removal equipment, the water removal equipment and operations shall be monitored by
<br />a competent person to ensure proper operation.
<br />If excavation work interrupts the natural drainage of surface water (such as streams), diversion ditches, dikes, or other suitable means shall be used to prevent
<br />surface water from entering the excavation and to provide adequate drainage of the area adjacent to the excavation. Excavations subject to runoff from heavy
<br />rains will require an inspection by a competent person and compliance with paragraphs (h)(1) and (h)(2) of this section.
<br />Adequate protection shall be provided to protect employees from loose rock or soil that could pose a hazard by falling or rolling from an excavation face. Such
<br />protection shall consist of scaling to remove loose material; installation of protective barricades at intervals as necessary on the face to stop and contain falling
<br />material; or other means that provide equivalent protection.
<br />Employees shall be protected from excavated or other materials or equipment that could pose a hazard by falling or rolling into excavations. Protection shall be
<br />provided by placing and keeping such materials or equipment at least 2 feet (.61 m) from the edge of excavations, or by the use of retaining devices that are
<br />sufficient to prevent materials or equipment from falling or rolling into excavations, or by a combination of both if necessary. Daily inspections of excavations, the
<br />adjacent areas, and protective systems shall be made by a competent person for evidence of a situation that could result in possible cave-ins, indications of
<br />failure of protective systems, hazardous atmospheres, or other hazardous conditions. An inspection shall be conducted by the competent person prior to the
<br />start of work and as needed throughout the shift. Inspections shall also be made after every rainstorm or other hazard increasing occurrence. These inspections
<br />are only required when employee exposure can be reasonably anticipated.
<br />- 9 - Revision: 7 — June 2013
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