2020-06-25_REVISION - C1981019 ‎(6)‎

• Permit No: C1981019
• IBM Index Class Name: Revision
• Doc Date: 6/25/2020
• Doc Name: Proposed Revision Materials
• From: Colowyo Coal Company, LP
• To: DRMS
• Type & Sequence: MR220
• Email Name: ZTT
• Email Name: JDM
• Media Type: D
• Archive: No

TABLES
Contents
TABLE 2.03-1 AFFECTED AREAS FOR MINING AND RECLAMATION............................................................ I
TABLE 2.04.7-1 WELL LOGS AND WATER-LEVEL MEASUREMENTS FALL 1974......................................... 3
TABLE 2.04.7-2 QUALITY OF GROUND WATER COLOWYO COAL MINE AND VICINITY..............................4
TABLE 2.04.7-3 SUMMARY OF WATER QUALITY MEASUREMENTS IN VICINITY OF TAYLOR CREEK.......... 5
TABLE 2.04.7-4 ANALYSIS—TAYLOR CREEK NO. I WELL......................................................................... 9
TABLE 2.05.7-5 ANALYSIS—TAYLOR CREEK NO.2 WELL....................................................................... 10
TABLE 2.04.7-6 ANALYSIS OF LEACHATE WATER FROM THE STREETER MINE......................................... 13
TABLE 2.04.7-7 SITE NUMBERS AND DESCRIPTIONS FOR WATER RESOURCE INVESTIGATION NEAR
COLOWYO COALMINE, 1974-PRESENT.................................................................................................... 14
TABLE 2.04.7-8 SURFACE WATER HYDROLOGY FOR BASINS NEAR THE COLOWYO COAL MINE PERMIT
AREA........................................................................................................................................................20
TABLE 2.04.7-9 SUMMARY OF WATER BALANCE ESTIMATES..................................................................25
TABLE 2.04.7-10 WATER BALANCE TAYLOR CREEK................................................................................26
TABLE 2.04.7-11 WATER BALANCE WILSON CREEK................................................................................27
TABLE 2.04.7-12 WATER BALANCE GOOD SPRING CREEK.......................................................................28
TABLE 2.04.7-13 SUMMARY OF HIGH AND LOW FLOW ESTIMATES..........................................................29
TABLE 2.04.7-14 TAYLOR CREEK FLOW ESTIMATE.................................................................................. 30
TABLE 2.04.7-15 WILSON CREEK FLOW ESTIMATE.................................................................................. 31
TABLE 2.04.7-16 GOOD SPRING CREEK FLOW ESTIMATE......................................................................... 32
TABLE 2.04.7-17 WATER QUALITY ANALYSIS(8/74—1/75).................................................................... 33
TABLE 2.04.7-18 AVERAGE CONCENTRATION OF WATER SAMPLES(8/74—1/75).................................... 34
TABLE 2.04.7-19 WATER QUALITY ANALYSIS(OCTOBER 1974—SEPTEMBER 1975)...............................37
TABLE 2.04.7-20 COMPARISON OF U.S.G.S.AND COLOWYO DATA FOR SPECIFIC CONDUCTANCE AND
TOTAL SUSPENDED SOLIDS COLLECTED AT TAYLOR CREEK,WILSON CREEK AND GOOD SPRING CREEK
NEAR THE COLOWYO MINE......................................................................................................................46
TABLE 2.04.7-21 SUMMARY OF SUSPENDED SEDIMENT ANALYSIS GOOD SPRING CREEK BELOW MINE
(GOOD SPRING CREEK III)........................................................................................................................ 49
TABLE 2.04.7-22 SUMMARY OF SUSPENDED SEDIMENT ANALYSIS WILSON CREEK BELOW MINE(WILSON
CREEKIV)................................................................................................................................................ 50
TABLE 2.04.7-23 MEAN MONTHLY SEDIMENT CONCENTRATION FOR WILSON CREEK(MG/1)DECEMBER
1979—SEPTEMBER 1980.......................................................................................................................... 51
TABLE 2.04.7-24 LIMITING VELOCITIES AND TRACTIVE FORCES FOR OPEN CHANNELS........................... 52
TABLE 2.04.8-1 MONTHLY NORMALS OF TEMPERATURE AND PRECIPITATION(1941-1970).................... 53
TABLE 2.04.8-2 MONTHLY PRECIPITATION*(1971-1979)CRAIG,COLORADO......................................... 54
TABLE 2.04.8-3 MONTHLY PRECIPITATION*(1971-1979)MEEKER,COLORADO..................................... 55
TABLE 2.04.8-4 MONTHLY AVERAGE TEMPERATURE*(1971-1979)CRAIG,COLORADO......................... 56
TABLE 2.04.8-5 MONTHLY AVERAGE TEMPERATURE*(1971-1979)MEEKER,COLORADO..................... 57
TABLE 2.04.8-6 TEMPERATURE SUMMARY(OF)MEANS........................................................................... 58
TABLE 2.04.8-7 MONTHLY PRECIPITATION(1978-1980)COLOWYO PERMIT AREA................................. 59
TABLE 2.04.9-1 SUITABLE TOPSOIL AVAILABLE FOR RECLAMATION.......................................................62
TABLE 2.04.9-2 SUITABILITY AS A PLANT GROWTH MEDIA OF THE SOILS BY HORIZON IN THE AREA TO BE
MINED......................................................................................................................................................63
TABLE 2.04.9-3 CHEMICAL AND PHYSICAL DATA FOR SOILS,COLOWYO MINE.......................................64
THIS PAGE INTENTIONALLY LEFT BLANK.................................................................................................66
TABLE 2.04.10-2 1980 HERBACEOUS COVER BY SPECIES.........................................................................67
TABLE 2.04.10-3 1988 HERBACEOUS COVER BY SPECIES.........................................................................69
TABLE 2.04.10-4 SUMMARY OF HERBACEOUS COVER..............................................................................70
TABLE 2.04.10-5 PRODUCTION DATA SUMMARY.....................................................................................71
TABLE 2.04.10-6 WOODY PLANT DENSITY WOODY PLANT STEMS PER ACRE..........................................72
TABLE 2.04.11-1 INTENSIVE BROWSE TRANSECTS...................................................................................75
TABLE 2.04.11-2 EXTENSIVE BROWSE TRANSECTS..................................................................................76
TABLE 2.04.11-3 PELLET GROUP PLOT TRANSECTS FOR DEER,ELK AND CATTLE(DAYS USE/ACRE).....77
TABLE 2.04.11-4 PELLET GROUP PLOT TRANSECTS FOR DEER,ELK AND CATTLE HABITAT IMPROVEMENT
AREAS(DAYS USE/ACRE)........................................................................................................................78
Tables vi Revision Date: 6/22/20
Revision No.: MR-220