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W Table 2.1-1. Vegetation sampling summary and comparison against bond release standards. Reclaimed Land Block Use Acres D,F&Z Pits RSA&B Rangeland 354.7 2001 to 2005 A,D&H Pits RSC Rangeland 95.5 2003 to 2005 I. Does not include noxious perennial weeds or annual/biennial cover. *2. Allowable cover = perennial cover minus noxious perennials, plus up to 10% relative annual cover, plus litter cover up to the maximum allowed per range site. Allowable cover bond release standards are as follows: Range Site A = 52%: herbaceous cover at least 33%, litter cover up to 19%. Range Site B = 52%: herbaceous cover at least 29%, litter cover up to 23%. Range Site C = 47%: herbaceous cover at least 25%, litter cover up to 22%. *3. Stem density bond release standard = 400 stems/ac for A and B range sites. No standard for range site C. *4. The minimum sample size requirement established by DRMS is 15. *5. Refer to sample adequacy summary (Table 2 in attached Crofts' report). *6. Reverse null T -Test on mean to demonstrate revegetation success used rather than sample adequacy equation (refer to Table 2.2-1). Herbaceous Cover Allowable Cover Plant Production Shrub Density Shrub Pad Survival (%)*1 (%)*2 (g/0.25m2) (stems/ac)*3 (%) Sample Sample Permit Sample Permit Sample Permit Sample Permit Sample Permit Year Average Standard Average Standard Average Standard Average Standard Average Standard 2014 56.9 33.0 80.5 52.0 72.9 15.6 919 400 71.7 50.0 2015 58.7 33.0 79.4 52.0 86.1 15.6 1139 400 63.7 50.0 2014 50.7 25.0 77.4 47.0 81.1 11.9 n/a n/a n/a n/a 2015 57.6 25.0 82.5 47.0 83.3 11.9 n/a n/a n/a n/a I. Does not include noxious perennial weeds or annual/biennial cover. *2. Allowable cover = perennial cover minus noxious perennials, plus up to 10% relative annual cover, plus litter cover up to the maximum allowed per range site. Allowable cover bond release standards are as follows: Range Site A = 52%: herbaceous cover at least 33%, litter cover up to 19%. Range Site B = 52%: herbaceous cover at least 29%, litter cover up to 23%. Range Site C = 47%: herbaceous cover at least 25%, litter cover up to 22%. *3. Stem density bond release standard = 400 stems/ac for A and B range sites. No standard for range site C. *4. The minimum sample size requirement established by DRMS is 15. *5. Refer to sample adequacy summary (Table 2 in attached Crofts' report). *6. Reverse null T -Test on mean to demonstrate revegetation success used rather than sample adequacy equation (refer to Table 2.2-1).