2020-06-08_REVISION - C1982057 (31)

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success is demonstrated. This direct comparison of reclaimed area mean to standard is allowed under DRMS rules (CDMG 2005 revised rule, 4.15.11(2)(a)). 2019 Cover Success Evaluation Calculation of the cover performance standard for 2019 sampling is demonstrated below. Aspen Reference Area Allowable All-Hit Herbaceous Cover' = 75.5% Mountain Brush Reference Area Allowable All-Hit Herbaceous Cover' =41.9% Sage Brush Reference Area Allowable All-Hit Herbaceous Cover' = 39.5% Steep Mountain Brush Reference Area Allowable All-Hit Herbaceous Cover' =28.4% Western Wheatgrass/Alkali Sagebrush Ref. Area Allowable All-Hit Herbaceous Cover' = 41.4% 'Herbaceous cover adjusted to allowable by subtracting noxious weeds and annual/biennial plant cover in excess of 10%of the remainder. The Calculation of 90% of the 2016 Cover Standard= 0.90*[0.110(75.5%)+0.3 54(41.9%)+0.313(39.5%)+0.128(28.4%)+0.104(41.4%)] =38.8% The mean allowable all-hit herbaceous cover for the BRB-5 sampled in 2019 was 72.3 percent exceeding the cover standard of 38.8 percent(90 percent of the upwardly adjusted cover performance standard) and success is demonstrated. This direct comparison of reclaimed area mean to standard is allowed under DRMS rules (CDMG 2005 revised rule, 4.15.11(2)(a)). [ Successful revegetation for the parameter of*cover was demonstrated in both 2018and 2019. Production The allowable herbaceous production values for the five vegetation types in the reference area are used in the weighted averaged calculation to determine the production standard: Table 3. 2018 and 2019 Data and Sample Adequacy Summary for Total and Allowable Herbaceous Production (pounds/acre) for the II-W BRB-5 Phase III Bond Release Area. Total Allowable Herbaceous Herbaceous Vegetation Type s N N►„in t Production Production gm/0.52 gm/0.52 BRB-5 Phase III Bond 104.4 104.4 46.4 32 34 1.309 Release Area 2018 BRB-5 Phase III Bond 117.2 117.2 67.3 32 57 1.309 Release Area 2019 8