PERMFILE60239 - Laserfiche WebLink

Home Browse Search

• Species Diversity PCC evaluated the species diversity success standard during 2001. The evaluation, presented in Appendix 14-7, also recommends a remedial revegetation treatment for CRDA-2. In accordance with the evaluation, PCC will apply remedial revegetation treatments, during November 2001, to the south and west facing slopes of CRDA-2 which appear unlikely to meet final success criteria. The following species diversity standard is based on the evaluation and consultation with the DMG: Item Relative Cover - Total perennial cool season grass species > 0.5 % - Total perennial warm season grass species > 2.0 % - Total perennial forbs and suffrutescent species > 0.5 % - No reclaimed azea shall have a single species that represents> 70 % Revegetation Success Reference Areas • The baseline vegetation study performed in 1982 and included in Appendix 10-1, Tab Section 10, established 3 reference areas. These areas included a west facing hillside above and west of the south portal designated as a Shadscale reference area, a drainage bottom designated, as a Greasewood reference azea and a southwest facing hillside and drainage bottom designated as a Greasewood/Shadscale reference azea, During construction of CRDA 2, a major portion of the Greasewood/Shadscale reference area was disturbed and is no longer available for comparison purposes. The Greasewood reference azea located on the drainage bottom west of the overland conveyor and south of the Excel plant was abandoned in favor of the new reference area described below. The new reference area was established during 1999 which represents the Greasewood vegetation type. This reference area is located approximately 1,500 feet northwest of the Cameo Refuse Disposal Area No. 1 along the east-facing colluvial toe slope adjacent to the BLM Bookcliffs access road and the ephemeral drainage, see Exhibit 61. • 14-24 (Rev. 7/07/04)