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Mr . John Doerfer <br /> April 18 , 1991 <br /> Page 3 <br /> along with "Sunnyside Mine" tailings analysis from the <br /> Consolidated Permit application. For further comparison the <br /> average metal composition of tailings Pond #4 in PPM is : <br /> Au: . 83 ; Aq: 27; Pb: 5500; Cu: 1000; Zn: 7200 . I would <br /> expect Tailings Ponds 1-4 to be similar in compostion . From <br /> the information available and the proximity of the sources , <br /> the material from the Lead Carbonate Pond should be <br /> compatible with Tailings Pond #1 material . <br /> After removal of the tailings material , the area will be <br /> treated with any amendments required to sustain plant growth and <br /> seeded with the "Mountain Mix" listed in the consolidated permit <br /> at a minimum rate of 20 lb/acre. <br /> Please accept this letter as an addendum to the TR 11 <br /> request and if you have any questions or need additional <br /> clarification in order to grant approval of. the TR request, <br /> please contact me. <br /> Sincerely, <br /> Larry Perino , <br /> Superintendent - Technical Services <br /> LP/qmv <br /> Enclosures <br />