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-3- <br />Z4. THE APPLICANT MUST PROVIDE THE REGULATORY AUTHORITIES [JITH PLANS TO <br />RESIZE TXE D-PORTAL AREA AND DP-1 PRINCIPAL SPILLWAY TO ALLOW A MAXIMUM <br />HEAD OF ONLY ONE FOOT ABOVE THE RISER CREST OR PROVIDE ADDITIONAL FREEBOARD <br />BETWEEN THE RISER CREST AND EMERGENCY SPILLWAY CREST. THE REVISED PLAN <br />SHOULD BE SUBMITTED [WITHIN 90 DRYS OF PERMIT APPROVAL. <br />I5. WITHIN 30 DAYS OF PERMIT APPROVAL, THE APPLICANT SHALL COMMIT TO THE <br />REGULATORY AUTHORITY TO COMPLY WITH THE FOLLOWING REQUIREMENTS: <br />(a) TO IMPLEMENT SEDIMENT CONTROL MEASURES PRIOR TO THE ONSET OF CONSTRUCTION <br />OF THE COAL TRANSPORT AND STORAGE AREA; <br />(b) TO PROVIDE EMERGENCY AND PRINCIPAL SPILLWAY OUTLETS WITH APPROPRIATE <br />EROSION CONTROL PRIOR TO THE CONSTRUCTION OF SEDIMENT PONDS; <br />(c) TO PROVIDE BAFFLES ON EACH OF THE REFUSE DISPOSAL AREA SEDIMENT PONDS <br />AS NECESSARY; <br />(d) TO PROVIDE QUARTERLY REPORTS TO REGULATORY AUTHORITIES AS REQUIRED BY <br />RULE 4.05.9(8) OF THE COLORADO REGULATORY PROGRAM; <br />(e) TO NOTIFY THE REGULATORY AUTHORITIES WITHIN FIVE DAYS AFTER ANALYTICAL <br />RESULTS OF SURFACE WATER SAMPLES INDICATE THAT NONCOMPLIANCE WITH PERMIT <br />CONDITION OR APPLICABLE STANDARD HAS OCCURED, AS REQUIRED BY RULE 4.05.13(2)(a)(ii) <br />OF THE COLORADO REGULATORY PROGRAM; <br />(f) TO REVEGETATE TXE ALLWIAL [JELL FIELD ACCESS ROAD TOPSOIL STOCKPILE AS <br />SOON RS PRACTIBLE AND MAINTENANCE OF A COLLECTOR DITCH AND BERM AT THE BASE OF <br />THE PILES TO TRAP SEDIMENT UNTIL THIS REVEGETATION IS ACCOMPLISHED; AND <br />(g) TO COMPLY WITH TEMPORARY CESSATION REGULATIONS (RULE 4.30.1). <br />I6. WITH RESPECT TO VEGETATION RESAMPLING IN THE 1981 FIELD SEASON, SITE 50 <br />(COLORADO WILDRYE) AND ITS REFERENCE AREA WILL BE SAMPLED FOR HERBACEOUS COVER <br />AND PRODUCTION. SITE 60 (JUNIPER) WILL BE SAMPLED FOR SHRUB DENSITY AND FOR <br />PRODUCTION. SITE 42 (SAGEBRUSH-GRASS) AND SITE 40 (GREASEWOOD-SAGEBRUSH) AND <br />CORRESPONDING REFERENCE SITES WILL BE SAMPLED FOR PRODUCTION. DATA SUMMARIES <br />AND STATISTICAL ANALYSES MUST BE SUBMITTED TO THE REGULATORY AUTHORITY BY <br />OCTOBER I, 1981. TXIS SHALL APPLY FOR ALL SAMPLING CONDUCTED DURING 1981. <br />I7. WITH RESPECT TO VEGETATION SAMPLING DURING THE 1981 FIELD SEASON IN AREAS <br />TO BE DISTURBED BY REFUSE DISPOSAL UNITS 1-4, TXE NUMBER OF SAMPLE CLUSTERS <br />WITHIN EACX VEGETATION TYPE SHALL BE AS SPECIFIED ON PAGE 24-7 OF ILLUSTRATION <br />24. CORRESPONDING REFERENCE AREAS MUST ALSO BE SAMPLED FOR APPLICABLE <br />PARAMETERS. THE SIZE AND LOCATION OF PROPOSED REFERENCE SITES MUST BE <br />SUBMITTED TO THE REGULATORY AUTHORITY WITHIN 30 DRYS OF APPROVAL. THE REFERENCE <br />AREA tJHICH WILL REPRESENT THE AREA PRESENTLY OCCUPIED BY THE CHEATGRASS-ANNUAL <br />FORB COMMUNITY MUST BE SPECIFIED. <br />18. DISTURBED ACREAGES OF EACH VEGETATION TYPE AFFECTED BY THE SITES MENTIONED <br />ON PAGE 24-8 SHALL BE CALCULATED AND SUBMITTED TO THE REGULATORY AUTHORITY WITHIN <br />30 DAYS OF APPROVAL. TXE NUMBER OF SAMPLE CLUSTERS REQUIRED WILL BE SET BY <br />TXE REGULATORY AUTHORITY AT THAT TIME. A MAP INDICATING THE SIZE AND LOCATION <br />OF PROPOSED REFERENCE SITES SHALL ALSO BE SUBMITTED BY THE ABOVE DEADLINE. <br />