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,wo, <br /> SAMPLING PROCEDURES: <br /> 1. As soon as tank is lifted, dig out 3 feet deep of subgrade soil as shown. <br /> 2. Take spade-full of soil sample. <br /> 3. If sampling is not practical with a spade, sample can be taken with a <br /> backhoe with spade collection from the backhoe bucket. <br /> 4. All sampling must meet the Envitonmental Protection Agencies "SAMPLING <br /> METHODOLOGY" for the particular analysis that is to be tested for. The <br /> analytical test results must state the exact methodology used to collect <br /> each sample. <br /> Ground Level <br /> ZZ/ <br /> 'j \ <br /> Ir <br /> TANK <br /> SUBGRADE <br /> � C 'h <br /> SPADE-FULL SOIL SAMPLE <br /> SUBGRADE SOIL SAMPLE <br /> Attachment 3 <br />