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CROSBY'& OVERTON <br />Environmental Management Inc. <br />8430 Amelia Street o Oakland, Calffbinia 94621 <br />(445) 633-01.W <br />PROCEDURES FOR 550 GALLON WASTE OIL TANK <br />WHICH HAS BEEN UNEARTHED <br />Check with gastech f or Lower Explosive Limit Oxygen (if <br />Lower Explos ive Limit is well below 10% , set up, f or,, 04ting <br />If Lower Explosive Limit is above 20% inert with dry ice� <br />(20 pounds per 1000 gallons). The period of time to inert <br />varies between two to six hours. <br />Drill a 1/2 inch hole with electric drill motor and drill <br />to allow sawzall blade to enter tank <br />-- Cut with sawzall a 3 foot by 3 foot access in ta <br />-- Remove all remaining free standing liquidsq (Check ground), <br />with vacuum truck. <br />