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• haul road corridor and in several parcels adjacent to the north and west portion of the <br />1990 study area. The 1992 study areas, totaling 535 acres, were added to the 1990 study <br />area in order to allow sufficient area to develop the haulage road system and associated <br />disturbances. Figure 1 shows the 1992 supplemental study site in relation to the 1990 <br />study area and [he permit area. <br />The 1992 baseline studies were also conducted with the vegetation guidelines and <br />appropriate 1990 study design elements as the basis. The 1992 study design was presented <br />to CMLRD personnel by Yern Pf annenstiel (PCC) in a meeting on June 18, 1992 and summarized <br />in a June 29, 1992 letter from Vern PfannenstieL to Larry Routen of CMLRD. The study <br />design was approved by Janet Binns of CMLRD on July 24, 1992. Sampling methods were <br />consistent with those used in the 1990 baseline studies. Sampling intensities were to <br />adequacy for cover and to specified maximums, where appropriate, for production and <br />density. Table 829 in the 1990/1992 Vegetation Report summarizes sampling intensities for <br />the various parameters. <br />A number of types sampled in 1992 were similar to the types studied in 1990 and are in <br />• close proximity. These types included mountain brush, sagebrush, aspen, mesic drainage <br />and alkali sagebrush/western wheatg ress. PCC proposed that production and density <br />sampling not be conducted in these types if cover data could be used to prove that the <br />same types occurring in the 1990 and 1992 study areas were comparable. PCC further <br />proposed to CMLRD on August 10,"1992 that the 1990 baseline cover data be compared to the <br />1992 cover date for the types being evaluated. The proposal was verbally approved by <br />Janet Binns end Larry Routen of CMLRD on August 10, 1992. Statistical analysis of the <br />1990 and 1992 data showed that the mountain brush, aspen, and sagebrush types were <br />similar. A discussion of the comparability analysis is presented in the baseline study <br />report (Attachment 10-1). The entire steep mountain brush type, including subunits in the <br />1990 and 1992 study areas, was sampled in 1992 for cover, production, and density to <br />ensure that this type was adequately described. <br />Four types in the 1992 study area were either not comparable to 1990 types or represented <br />new types. Production sampling was required for these types but could not be completed in <br />1992 because of grazing and the late season. Production sampling was scheduled for 1993; <br />however, grazing was initiated very early and before grazing exclosures could he placed in <br />• the field. Very wet and muddy conditions in spring 1993 also limited access. <br />Consequently, grazing exclosures were placed in the western wh eatgrass/alkali sagebrush, <br />3 <br />