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I' <br />~/ <br /> <br />Mr. Bob Liddle <br />June 23, 1982 <br />Page 2 <br />~~ In regard to drying time, the sludge will be dried for one week to . <br />volatilize about 60%-80% of the NH -N. If dried once then wet by <br />rain or irrigation and allowed to ~ry again, 10%-15% more NH4-N <br />might be volatilized so the loss could be 75%-90% in our <br />calcareous soils. In either case drying for one week will be <br />sufficient. <br />~j Attached are calculations from Dr. B. R. Sabey which describe how <br />much nitrogen will be available. Furthermore, a letter from the <br />state engineer states that consumptive requirements will take up <br />most, if not all, water applied. This letter is also attached. <br />~k.. We will calculate in pounds per acre for metals that were of <br />~, concern. This will be done after we produce some characteristic <br />sludge. However, Dr. Sabey states that there is little <br />possibility of accumulation of heavy metals due to the fact we <br />will not repeatedly apply the sludge to the same area. <br />Furthermore, in the high pH soils the metals will not be very <br />soluble. <br />We request that <br />July 15, 1982. <br />277-5287. <br />a determination be made on our application by <br />Should you have any questions please call me at <br />Sincerely, , /~ <br />_~~L/~ <br />~%~ <br />enjamin E. Franklin, III <br />Environmental Affairs <br />Dept. #344 <br />BEF/p1b:RA124 <br />attachments <br />cc: Bill Robie <br />Neil Jaquet <br />