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Attachment <br /> (Tank/Piping Removal) <br /> ON-SITE WORK <br /> FOR TANK/PIPING REMOVAL AND EXCAVATION <br /> $emoval of Flammable VanorB an &MQYAI of 1Uk s <br /> Removal of flammable vapors and removal of tanks will be performed in accordance with the <br /> requirements of Local Regulatory Agencies. The following are general guide lines. <br /> A review of available codes, standards, and recommended procedures produces the following <br /> consensus: <br /> A. All possible sources of ignition must be kept from impacting the tank or the area in <br /> which flammable vapors may reside during excavation or after removal. <br /> B. Drain and flush all piping into tank. Flammable or combustible free standing liquid <br /> production stock will be removed from the tank prior to removal. Avoid spilling <br /> product on the ground during disconnection of the tank from its associated lines. <br /> C. - Vent lines should not be sealed and should.be cut last. Keep all sources of ignition <br /> away from vent lines as well as tanks. <br /> D. Once all liquid has been removed from the tank, any tank with flammable vapors in <br /> excess of 10% of the LEL or S% oxygen will be purged with dry ice (CO). Thirty <br /> pounds of dry ice per 1,000 gallons of tank capacity is added to render the tank <br /> inert. All piping except the vent pipe should be disconnected. <br /> •• mereencv Services <br /> The address and telephone number of the local hospital, ambulance and medical emergency room <br /> should be prominently posted. In addition, the telephone number of the fire department/rescue <br /> unit should be posted. <br /> General information regarding emergency services may be found on front page. <br />