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s <br />Mr, Peter V. O'Connor <br />9 November 1983 <br />Page 3 <br />MLRD COMMENT <br />3. What slope gradients are proposed for the topsoil stockpile? To <br />provide a suitable slope for establishing vegetation and to maintain <br />soil quantity, the Division recommends a slope gradient of no steeper <br />than 3h:ly. <br />IRI RESPONSE <br />3. The slope gradient on the topsoil stockpile will be no steeper than <br />3h:ly as the Division suggests. <br />MLRD COMMENT <br />4. The text, on page E-6, specifies "concrete foundations and slabs will <br />be broken and buried on-site". How deep will this material be buried? <br />Also, what is the anticipated amount of concrete foundations and slabs <br />that will need to be buried? <br />IRI RESPONSE <br />4. Concrete foundations and slabs will be broken and buried a minimum of <br />3 feet below final grade. It is estimated that approximately 270 cubic <br />yards of concrete will be buried. <br />MLRD COMMENT <br />5. What parameters will be measured and at what intervals will these <br />parameters be measured at the three monitoring wells? Please provide <br />copies of the measured parameters after each monitoring. <br />IRI RESPONSE <br />5. Monitoring for tfie Bulk Sampling phase (Permit No. 83-56) has included <br />the list of parameters shown below. It is anticipated that these same <br />parameters will he measured for the Pilot Plant operations. <br />Field Measuremenl:s (Monthly) <br />Temperature <br />pH <br />Conductivity <br />