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<br />Henderson Permit #77-342 <br />March 19, 1981 <br />Page Ten <br />better quality reclamation than the alternative of <br />revegetating bare tailings. <br />2. How many inches and cubic yards of topsoil are available <br />for salvage on amendment lands? How many inches and <br />cubic yards will be removed and stockpiled? Precisely <br />where will the topsoil from each disturbance area be <br />stockpiled? <br />All three components of this question have been <br />answered in responses to previous questions, i.e., <br />C.3., C.6., C.9. and G.1. <br />3. Topsoil groups should be segregated where differences <br />are significant in qualities such as pH, salinity, <br />texture, moisture holding capacity, etc. Please <br />identify these groups. <br />Where we are stockpiling soil, we are stockpiling <br />the best available soils from all standpoints, <br />i.e., texture, pH, salinity, moisture holding <br />capacity, etc., including economics. We are <br />endeavoring to homogenize all stockpiled soils to <br />provide a uniform growth medium which will <br />effectively seal the surface of the tailing pond <br />and serve to greatly accelerate the ultimate <br />reclamation of the tailing. <br />H. Vegetation Information <br />1. Are there any rare or endangered plants that could be <br />affected by any disturbance on lands covered by this <br />amendment? <br />No <br />2. Please submit a summary of findings obtained to date <br />from your vegetation monitoring. <br />Baseline monitoring was initiated in 1976 prior to <br />production. The monitoring is performed every <br />three years. Our 1979 vegetation chemical <br />monitoring indicates no apparent trends with <br />respect to distance or direction from the milling <br />operation and with the prevailing wind pattern. <br />Similarly, our aerial infra-red monitoring of <br />vegetation indicates little change in vigor of <br />