Laserfiche WebLink
• <br />The RN-4 findings dated 6/1812004 state that shrub density will be deemed adequate <br />when sampling determines that shrubs comprise at least 5% of the total species <br />composition. The shrub density standard was not addressed in the revegetation <br />sampling. Was there a revision to the permit eliminating the shrub density standard? <br />The last seeding at the Golden Eagle Mine was in 1996 and thus the required ten-year <br />liability period was achieved in 2006. Basin Resources, Inc. (BRI) hired a consultant to <br />measure revegetation success during the summers of 2005 and 2006, the last two <br />years of the liability period. A summary of the data is shown in the table below. <br /> 00 <br />Cover Production <br />Ibs/acre <br /> <br />2005 Irrigated Pasture Reclaimed <br />Area 39.9 1822 <br />2005 Irrigated Past. AVF Reference <br />Area 36.5 2018 <br />90% of Production Standard 1816 <br /> <br />2005 Reclaimed Rangeland 32.5 1373 <br />2005 Rangeland Reference Area 19.7 356 <br /> <br />2006 Irrigated Pasture Reclaimed <br />Area 20.9 2479.3 <br />2006 Irrigated Past. AVF Reference <br />Area 19.5 1662.5 <br /> <br />2006 Reclaimed Rangeland 14.5 1090.7 <br />2006 Ran eland Reference Area 12.8 154.9 <br />The highlighted production values seem high compared to the cover values. After <br />reviewing the tables, I believe there is an error in the conversion from g/m2 to Ibs/acre. <br />The conversion for g/0.5m2 is 17.841 and the conversion for g/m2 is 8.9. Please check <br />the total production numbers to accurately reflect the correct production in terms of <br />pounds per acre. <br />2005 Data <br />The 2005 cover data was collected using 15 randomly located 25 meter-long transacts <br />in each of the sampling units: the reclaimed pasture, the pasture reference area, the <br />reclaimed rangeland and the rangeland reference area. Two ocular cover points were <br />collected perpendicular to the transect in each direction at every meter for a total of 50 <br />points. Sample adequacy for vegetative cover was achieved in all four sampling units. <br />Vegetative cover on the pastureland reclaimed area (39.9%) exceeded the cover on the <br />pastureland reference area (36.5%). The reclaimed rangeland cover (32.5%) far