2018-08-30_PERMIT FILE - C1982057 (2)

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PREFACE Tab 10 Organization Prior to the current 1998 update, Tab 10 of the Seneca II-W Mine permit application was a single section, presenting information from vegetation baseline studies conducted between 1979 and 1990. For the 1998 Seneca II-W South Extension Permit Revision application, Tab 10 was divided into two separate sections; Section 10.1 and Section 10.2. Section 10.1 contains the entire contents of Tab 10 from the previously approved permit application. Section 10.2 contains information from the 1997 supplemental vegetation baseline study of the Seneca II-W South Extension area. To avoid altering an approved, historical document, the only aspect of the former text that has been edited or updated is the addition of this preface and the Tab 10 table of contents. Persons Responsible for Data Collection Table 10-1 (in Section 10.1) summarizes the multiple vegetation studies that were conducted at the Seneca II-W Mine previous to the 1997 study by parameter, year, location, and firm involved in collecting the data. A brief outline of those studies is presented below and a detailed discussion is presented in Section 10.1. Initial vegetation studies were conducted in 1974 by Environmental Research and Technology, Inc. IERTI on and adjacent to the 1985 Permit Area. During 1978 Peabody Coal Company Inow Seneca Coal Company) initiated further environmental studies and designed a vegetation sampling program. Following discussions with CMLRD and OSM, quantitative sampling was conducted in all vegetation types within the planned mine disturbance area and associated reference areas by ERT. Peabody initiated additional vegetation studies in 1980 to update existing baseline data by sampling shrub density and provide information on the tie-across haul road corridor. In 1982 Peabody submitted to CMLRD an application to mine, and as part of its review, CMLRD identified deficiencies in the vegetation studies. As a result, additional baseline data were collected by Western Resource Development Company IWRDC) in 1983. More studies followed in 1985 after a portion of the tie-across haul road was relocated. These studies were conducted by Stoecker-Keammerer and Associates IS-K&SI. In the spring of 1990, ESCO Associates, Inc. IESCOI conducted baseline vegetation studies in proposed permit expansion areas located north, east end south of the current permit area. The data and results of the studies conducted between 1974 and 1990 are discussed in Section 10.1. Finally in July and August of 1997, baseline vegetation data for the Seneca II-W South Extension area were collected by ESCO. The data and results of these studies are presented in Section 10.2. P-1 Revised 9198 ,° ry,... -..-~r,...~ ~ A: