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-2 r ~ NOT BE SAMPLED IN TXE FUTURE. TXE REVISED REFERENCE RRER, RS WELL AS THE DRY MEADOW AREAS TO BE AFFECTED, SHALL BE SI,IPLED BY SEPTEMBER 1, 1982 FOR COVER, PRODUCTION, AND WOODY PLANT DENSITY USING THE METHODS IDENTIFIED IN THE APPLICA- TION FOR THE BASELINE REFERENCE AREA SURVEY. NO SURFACE DISTURBANCE OTHER TXAN THAT NECESSARY FOR THE PNSTALLATION OF THE DIVERSION DITCH SYSTEM SHALL OCCUR ON THE PROPOSED UPPER TERRACE DRY MEADOW AREAS OF DISTURBANCE PRIOR TO COMPLETEION OF ALL VEGETATION SAMPLSNG REQUIRED HEREIN. TXE VEGETATION CHARACTERISTICS OF TXE REVISED REFERENCE AREA SHALL BE STATISTICALLY COMPARED TO THOSE OF THE CORRESPONDING AFFECTED AREAS USINC THE PROCEDURES DISCUSSED IN THE APPLICATION. A SPECIFIC PLAN SHALL BE DEVELOPED FOR THE DRY MEADOW REFERENCE AREA TXAT WILL ENSURE THE PROPER MANAGEMENT OF THIS AREA THROUGHOUT THE LIFE OF TXE MINE. THE DRY MEADOW MANAGEMENT PLAN SHALL INCLUDE MEASURES TO ENSURE THAT THE VEGETATION TYPE REMAINS ESSENTIALLY UNCHANGED FROM TXE PRIMARILY HERBACEOUS VEGETATION STRUCTURE TXAT EXISTED AT THE TIME OF TXE 1980 REFERENCE AREA BASE- LINE INVENTORY. PRIOR TO COMPLETION OF TXE BASELINE INVENTORY FOR THE DRY MEADOW COMMUNITY, THE PROPOSED DRY MEADOW AFFECTED AREAS SHALL BE MANAGED IN THE SAME WAY AS THE REVISED DRY MEADOW REFERENCE AREA. THE REVISED REFERENCE AREA MAP, ALL DRTR AND ANALYSES, AND THE REFERENCE AREA MANAGEMENT PLAN SHALL BE SUBMITTED FOR APPROVAL TO THE DIVISION BY DECEMBER 1, 1982. NOTE: This stipulation has also been revised by OSM as follows: 39. Prior to August Z, 1981, the applicant shall_.select, in consultation with the Colorado MLRD and OSM, appropriate areas to increase the size of the existing dry meadow reference area from 0.8 acres to approximately 2.0 acres. The enlarge dry meadow reference area shall be mapped at a scale of 1" = 100' so as to clearly indicate those areas within the revised reference area that will not be sampled in the future. The revised reference area, as well as the dry meadow areas to be affected, shall be sampled by September 1, 1982, for cover, production and woody plant density using the methods identified in the MRP for the baseline reference area survey. No surface disturbance other than that necessary for construction of the peripheral diversion ditches (as discussed with the applicant) shall occur on the proposed upper terrace dry meadow areas of disturbance prior to completion of all vegetation sampling required here- in. The vegetation characteristics of the revised reference area shall be statistically compared to those of the corresponding affected areas using the procedures discussed in the MRP. A specific plan shall be developed for both the dry meadow and wet mixed shrub reference areas that would ensure the proper management of these areas throughout the life of the mine. The dry meadow management plan shall include measures to insure that the vegetation type remains essentially unchanged from the primarily herbaceous vegetation structure that existed at the time of the 1980 reference area baseline inventory. Prior to completion of the baseline inventory for the dry meadow community, the proposed dry meadow affected areas shall be managed in the same way as the revised dry meadow reference area. During the 9th and 10th years of the bond liability period, the revegetated and reference areas sha31 be managed in thesame way. The revised reference area map, all data and analyses, and the reference area management plans shall be submitted for approval to the regulatory authority by December 1, 1982. 2. Stipulation: ARCO COAL COMPANY IS REQUIRED TO SUBMIT A SEDIMENT CONTROL PLAN FOR THE LOAD SITE TO THE DIVISION, FOR APPROVAL, PRIOR TO INITIATION OF CONSTRUCTION OF THE LOADOUT FACILITIES. MLRD Findings Document: Stipulation No. 2, p. 2