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an alkaline circuit which neutralizes all the acidic portion of the mine tailings. After the <br />neutralization of the acidic content of the tailings substantially all the remaining acid producing <br />potential material, i.e., iron pyrites, are recovered by gravity and flotation processes for their <br />contained gold and silver values and are shipped to smelters in China for the recovery of the <br />precious metals and the production of byproduct sulfuric acid. The slight quantity of non- <br />recovered sulfide material, with acid - generating potential, is balanced by the alkaline material <br />used in the process so that no net acid - generating potential remains. The Federal Mill will <br />provide a copy of the TCLP for the ultimate waste after an initial production of less than one <br />hundred tons of tailings has been processed and the waste is categorized, i.e., that the material <br />meets the requirements of the ultimate landfill's CDPHE solid waste disposal permit as non- <br />hazardous waste. In addition, the United States EPA, in the ROD for the Idaho Springs — Central <br />City Superfund Study Area had testing preformed on the dump materials in the study area and <br />determined that the waste generated from the testing, using essentially the same processing that <br />the Federal Mill uses, is non - hazardous and could be disposed of in a municipal land fill. The <br />relevant section of the ROD is attached hereto. <br />In the event of temporary cessation of operations a plastic membrane will be installed over the <br />disturbed exposed face to eliminate gullying and/or washout from a potential stormwater event. <br />After mining the affected lands will be reclaimed by constructing topsoil using weed free <br />biocompost and revegetated as detailed in the Reclamation Plan hereto. <br />No overburden will be created or stockpiled at the site. No new on -site water sources such as <br />ponds, pumps, stream channels, diversions nor dams will be required. No buildings or processing <br />plants will be erected. A map is attached for this mining plan. <br />In the event that human remains are encountered during mining/reclaiming the mine site the <br />requirements of C.R.S. 24 -80 shall be complied with as requested by the Colorado Historical <br />Society. <br />