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4-53 4.5.2.5 Sample Characteristics and Adequacy Table 4.5-23S provides information on the adequacy of cover, • production, and shrub density sampling in those three vegeta- tion types for which quantitative sampling was required. It should be noted that limited quantitative sampling was conducted in the Juniper Woodland and Gardner Saltbush vegetation types -only as a means of providing data for descriptive purposes. CMLR personnel did not require quantitative sampling and thus sample adequacy has not been calculated for these vegetation types. A statistically adequate number of cover samples was completed for all three vegetation types. Likewise, a sample adequacy was achieved for production in all vegetation types. With respect to shrub density, the number of samples prescribed by CMLR personnel was taken. Sample adequacy was not achieved for the sparsely distributed trees in the Shadscale Wildrye vegetation even after completing 36 quadrats. • In the greasewood Shrubland reference area sample adequacy was achieved for vegetation cover, production, and density. 4.5.3 Summary It is proposed that the Munger Canyon Mine permit area be expanded to incorporate central facilities buildings, a refuse disposal area, a coal conveyor transport system to McClane and Munger Canyons, and a haul road to the refuse disposal site. Vegeta- tion studies were conducted on vegetation types potentially affected by proposed disturbances for the permit revision area. Per the direction of CMLR personnel the studies were both quantitative and qualitative. Briefly, quantitative data on vegetation cover, production, and woody plant density was pro- vided for vegetation types with major disturbance while qualita- tive information was furnished for vegetation types with smaller proposed disturbance. A premining reference area system was used . to establish standards for measuring revegetation success.