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Study Plan Design <br />................:.:~..~....:....:...,...................... ...,..........,..,.....,..,. .. ..,.............,,..........a.......... ..c.,......., ate,.....,..... ..: <br />' The scope of work for the revegetation study consists of three phases as follows: <br />1. Pre-reclamation investigation; <br />' 2. Test plot reclamation plan; and <br />3. Post-reclamation investigation. <br />' The first two phases were completed during discussions with DMG for design of the program and <br />construction of the test plots during the Summer of 1990. The following sections summarize the <br />issues associated with each phase. <br />' Pre-reclamation Investigation <br />' The following tasks and assumptions were agreed upon and completed before starting the RP-1 <br />test plot reclamation with varying topsoil/subsoil cover thicknesses. <br />• One representative composite topsoil and subsoil samples were obtained on April 24, 1990 <br />and May 2, 1990. respectiveh~, by ~VFU (split sample analysis was conducted by DMG on <br />' the April 2=4. 1990 sample) from stockpiles and were analyzed for the following parameters: <br />' Specific Conductance Organic Matter <br />Calcium Texture <br />' Magnesium pH <br />Sodium Phosphorus <br />' One composite sample of the coal refuse was obtained on April 24, 1990 by WFU (split <br />sample analysis vas conducted by DMG on this sample) from the disposal area and was <br />analyzed for the following parameters in addition to those listed for topsoiUsubsoil: <br />Exchangeable Sodium Percentage Boron <br />' Selenium Sulfate Sulfur <br />Pyritic Sulfur Total Sulfur <br />' Acid base Potential <br />• A "reference plot" with existing vegetation in the vicinity has been selected and fenced for <br />' future reference. This is a sasebrush-wheatgrass reference area that is approximately 2.0 <br />acres in size. <br />' Success criteria will be defined based on cover, woody plant density (number of woody plants <br />in unit area), species diversity, and production (gm/m'-) as they relate to the vegetation in the <br />reference plot. The success criteria will be consistent with DMG's Regulation, Sec- <br />' lion 4.15.8. <br />' '•6-Ol'I'~cy.rp~ 7 <br />