Laserfiche WebLink
June 6, 2007 <br />Permit Section 780.23 Post-mining Land use =Rangeland. <br />On reclaimed areas Pre-1986, 1995, and 1996 reclamation success criteria have been achieved for cover, production. woody <br />plant density and species diversity. On the 1999 reclaimed area cover and productivity reclamation success criteria were <br />achieved. 2005 vegetation sampling data show that cover, productivity, woody plant density and species composition have <br />been achieved for the Tipple area. The Tipple was reclaimed in 1999 ,and is not yet eligible for Phase III bond release. <br />Page 21 of the 2005 Revegetation Monitoring report for the Marr Mine implies that all criteria for revegetation success have <br />been met for the 2005 sampling event. The 1999 reclaimed area does not meet Phase III liability timeframe, nor woody <br />plant density requirement or species composition criteria for Phase III success. <br />achives <br />2006 reference areas success? <br />Big sage %cover 35.13 <br />g/1/4 MZ 8.67 <br />Alkalai sage %cover 31 <br />g/1/4 MZ 5.71 <br />2006 sampling reclaimed areas <br />Pre-1986 %cover <br />g/1/4 MZ <br />wpd <br />sp comp <br />1995 %cover <br />g/1/4 MZ <br />wpd <br />sp. Comp <br />1996 %cover <br />g/1/4 MZ <br />wpd <br />sp. Comp <br />39.33 Y <br />22.1 Y <br />59.27 Y <br />38.13 Y <br />19.18 Y <br />171.23 Y <br />Y <br />38.13 Y <br />21.31 Y <br />85.4 Y <br />Y <br />90% <br />31.617 86.55%total ac.=Alkalai sage <br />7.803 13.45% total ac.= Big sage <br /> X cover =28.40% (90% W) <br />27.9 prod=6.11 g/1/4 MZ (90% W) <br />5.139 wpd=1500 s/a=37.07 s/100 MZ <br />sp. Comp= 4 dom sp. Comprising < 83% rel. cover <br />no one sp. > 40% rel. cover <br />1 of the 4 must be forb or shrub p.780.84a <br />top 4=59.89 <br />top 4=75.53 <br />top 4= 57.17 <br />Big sage 4th most <br />Big sage 1st most <br />Lewis flax 2nd most <br />2006 Vegetation sampling data was reviewed. Sample adequacy or reverse null analyses was conducted by the operator on <br />the data. Reclamation success criteria were met for cover, productivity, woody plant density, and species diversity for pre- <br />1986, 1995, and 1996 reclaimed areas. The 1999 reclamation and the tipple reclamation was not sampled in 2006. <br />2 <br />