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Performance Standards <br />COVER and HERBACEOUS PRODUCTION : For purposes of comparison only, cover and <br />herbaceous production performance standards were calculated in accordance with procedures <br />contained in the Seneca II-W permit. Aline that indicates 90 percent of this standard has been <br />placed on Figure 1 for informational purposes. At such time as bond release is formally sought, <br />revegetation will be considered successful for cover when mean cover for a bond release block is <br />at least 90% of the calculated success standard or approved technical standard. <br />WOODY PLANT DENSITY: For purposes of comparisons in this document, woody plant density <br />at the Seneca 11-W Mine is evaluated using a technical standard of 2001 shrubs per acre. <br />Climatic Data <br />Precipitation data were collected at the Seneca II-W Mine during 1998, 1999, 2001. For all <br />previous years, SCC provided precipitation data from the nearby Seneca II Mine for the period of <br />January 1982 through December 1997. Since the data record for that mine exists for only 17 <br />years, the long term average monthly precipitation data from the National Oceanic and <br />Atmospheric Administration (NOAA) for the nearby town of Hayden was used as an appropriate <br />base for comparison. Information on degree-days was based on temperature data derived from <br />the NOAA records at Hayden. <br />RESULTS <br />Data from the 2001 revegetation monitoring studies at the Seneca II-W Mine are presented in <br />Tables 1 through 19 contained in Appendix 1. The list of plant species observed during these <br />studies (reclaimed and reference areas) are included in Table 20 in Appendix 2. Seed mixes <br />used in the reclamation areas are included for reference in Appendix 3. Photographs of <br />representative locations within the reclaimed areas sampled in 2001, as well as photographs of <br />the Aspen, Mountain Brush, and Sagebrush reference areas are included in Appendix 4. Graphic <br />depiction of summaries of vegetation and climate data are presented in Figures 1 through 10 of <br />this report <br />In the cover descriptions below, species listed as "also present" were not "hit" during point- <br />intercept sampling but were present within one meter on either side of the 50 m sample transect <br />fine. Cover percentages referred to in the following results as "percent of total vegetation cover' <br />are relative vegetation values. <br />