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.' - 2 - <br /> Site Characterization <br /> 1 . A site inventory and summary should be conducted to provide a basis <br /> for the revised reclamation plan. These data will be important to <br /> both AMAX and Division personnel when we evaluate reclamation plan <br /> proposals. The inventory will include the following components: <br /> a. Current acreage estimates for all types of disturbance, such as <br /> the tailings ponds and dams, the open pit(s), the waste rock <br /> dumps, processing areas, access roads, mine openings, etc; <br /> b. a detailed itemization of stockpiled topsoil resources, including <br /> pile locations, pile volumes and topsoil pile vegetation cover <br /> status; <br /> c. Volume estimates for all waste rock dumps. (Note: letters <br /> within the file imply that different grades and types of waste <br /> rock exist) ; <br /> d. Analyses regarding the type(s) of available waste rock, particle <br /> - size characteristics and acid drainage production potential of <br /> the various waste rock resources; and <br /> e. tailing material analyses which include an evaluation of such <br /> parameters as pH, acid-base accounting, particle-size <br /> distribution, soluble salt content, etc. <br /> 2. Please discuss the status (include acreage) of the following site <br /> facilities: The Old Tailings Pond; the rip-rap quarries; the oxide <br /> pond and associated dam No 4; the McNulty waste dump interceptor <br /> canal ; the McNulty Gulch settling pond; and the proposed reservoir to <br /> be located on some upstream section of the Arkansas River. The <br /> permit documents indicate that the Old Tailings Pond and the Oxide <br /> pond are in some state of reclamation and it seems logical that this <br /> should be occurring. <br /> 3. The permit documents reference different test plots or other projects <br /> designed to prepare for future revegetation efforts. These may <br /> provide valuable information for the revised reclamation plan. These <br /> include open pit research plots, topsoil test plots, tests to <br /> evaluate pyrite-oxidation rates, numerous tailings revegetation test <br /> plots, alpine research plots, waste rock test plots (Cirque Dump) , <br /> numerous tree plantings, shrub plantings, a greenhouse and <br /> nurseries. What is the status of these various projects? A detailed <br /> inventory of these projects should be conducted. <br /> Many of the projects seem to have been abandoned during the late <br /> 1970's or early 1980's. This may actually be beneficial in that only <br /> the most hardy species will have survived. You might also consider <br /> some type of research that examines similar existing historic <br /> disturbances for vegetation invasion. <br />