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Colowyo Coal company <br />Exhibit 2A <br />2017Annual Reclamation and <br />Hydrology Report <br />Water Quality Data <br />1992-2017 <br />New Upper Good Spring <br />Creek <br />COLOWYO MINE <br />(NUGSC) <br />NUGSC <br />Listing of Stream Lab Data <br />Flow <br />Field <br />Field <br />Field <br />Lab <br />Lab <br />TDS <br />NO3 <br />NO2 <br />NO3+NO2 <br />NH3 Total <br />Bicarb <br />No datum => Blank <br />Rate <br />pH <br />Temp <br />Conduct <br />pH <br />Conduct <br />-180 <br />TSS <br />as N <br />as N <br />as N <br />as N P <br />as HCO3 <br />Sulfate <br />As <br />Ca <br />Fe <br />Pb <br />Mg <br />Mn <br />Hg <br />Se <br />Na <br />Zn <br />cis <br />S U <br />deg C <br />umho/cm <br />S U <br />umho/cm <br />mgA <br />mgA <br />mgA <br />mgA <br />mgA <br />mgA mgA <br />mgA <br />mgA <br />mgA <br />mgA <br />mgA <br />mgA <br />mgA <br />mgA <br />mgA <br />mgA <br />mgA <br />mgA <br />Statistics <br />Mean <br />297 <br />825 <br />794 <br />148415 <br />817 <br />149820 <br />113237 <br />4855 <br />357 <br />007 <br />366 <br />017 008 <br />41219 <br />49825 <br />000 <br />12607 <br />077 <br />010 <br />12228 <br />005 <br />0 00 <br />001 <br />4724 <br />004 <br />Std. Dev. <br />326 <br />033 <br />494 <br />39029 <br />025 <br />27884 <br />23244 <br />10429 <br />125 <br />004 <br />132 <br />055 Oil <br />7013 <br />14329 <br />000 <br />1895 <br />155 <br />009 <br />2906 <br />006 <br />0 00 <br />000 <br />1563 <br />003 <br />Coef. Var. <br />Range <br />1994 <br />25 <br />225 <br />3023 <br />11 <br />2842 <br />1250 <br />992 <br />54 <br />009 <br />632 <br />405 0 855 <br />433 <br />760 <br />00046 <br />1656 <br />853 <br />02 <br />2269 <br />0 285 <br />0 001 <br />0 035 <br />1211 <br />019 <br />Max <br />2000 <br />940 <br />2260 <br />365000 <br />860 <br />360000 <br />161000 <br />99400 <br />640 <br />010 <br />690 <br />410 086 <br />64800 <br />93000 <br />0 005 <br />16900 <br />854 <br />020 <br />22800 <br />029 <br />00010 <br />004 <br />13800 <br />020 <br />Min <br />006 <br />690 <br />010 <br />62700 <br />750 <br />75800 <br />36000 <br />200 <br />100 <br />001 <br />058 <br />005 001 <br />21500 <br />17000 <br />00004 <br />340 <br />001 <br />000 <br />110 <br />001 <br />00000 <br />0 001 <br />1690 <br />001 <br />Max at <br />4/27/1998 <br />11/18/1997 <br />7182002 <br />3/6/1998 <br />4/27/1998 <br />3/6/1998 <br />8/62001 <br />5/27/1993 <br />11/1/2004 <br />11/5/2001 <br />11/18/1994 <br />5/3/2011 1/1/1999 <br />2/23/2010 <br />7/3/2002 <br />11/1/2004 <br />8/2/2002 <br />5/17/1999 <br />5/7/2001 <br />8/2/2002 <br />5/17/1999 <br />5!7/2001 <br />7/31/2000 <br />11/10/2008 <br />10/2/2000 <br />Min at <br />7/302013 <br />2/112002 <br />12/18/1996 <br />4/82002 <br />10242002 <br />527/1993 <br />5/82002 <br />9/30/1994 <br />520/1997 <br />10242002 <br />427/1998 <br />10242002 9/11/1997 <br />10/8/1998 <br />520/1997 <br />5/82002 <br />6/1/1993 <br />2/112002 <br />6282002 <br />427/1998 <br />3/142002 <br />6/1/1990 <br />520/1997 <br />427/1998 <br />10242002 <br /># Of Samples <br />218 <br />190 <br />224 <br />222 <br />226 <br />226 <br />103 <br />221 <br />87 <br />87 <br />111 <br />100 103 <br />111 <br />119 <br />119 <br />172 <br />122 <br />119 <br />172 <br />117 <br />111 <br />111 <br />111 <br />111 <br />Station Date <br />NUGSC 10/15/1992 <br />1 70 <br />17 <br />84 <br />1430 <br />1264 <br />2 <br />465 <br />022 0 029 <br />334 <br />626 <br />0 001 <br />125 <br />002 <br />002 <br />135 <br />001 <br />0 <br />002 <br />48 <br />001 <br />NUGSC 1123/1992 <br />1 00 <br />1 <br />82 <br />1500 <br />1188 <br />2 <br />429 <br />028 0 021 <br />394 <br />591 <br />0 001 <br />125 <br />002 <br />002 <br />125 <br />002 <br />0 <br />0 005 <br />50 <br />001 <br />NUGSC 12/17/1992 <br />130 <br />1 <br />81 <br />1670 <br />12 <br />NUGSC 1/19/1993 <br />060 <br />4 <br />81 <br />2480 <br />2 <br />NUGSC 227/1993 <br />050 <br />3 <br />8 <br />1780 <br />4 <br />NUGSC 3/13/1993 <br />1 00 <br />2 <br />81 <br />1470 <br />1180 <br />20 <br />352 <br />016 002 <br />402 <br />595 <br />0 002 <br />130 <br />013 <br />002 <br />123 <br />002 <br />0 <br />0 012 <br />53 <br />001 <br />NUGSC 421/1993 <br />410 <br />2 <br />1520 <br />8 <br />1490 <br />22 <br />NUGSC 527/1993 <br />1540 <br />17 <br />890 <br />79 <br />758 <br />994 <br />NUGSC 6/1/1993 <br />740 <br />9 <br />976 <br />83 <br />902 <br />592 <br />136 <br />1 93 <br />017 016 <br />306 <br />220 <br />0 001 <br />77 <br />26 <br />002 <br />56 <br />014 <br />0 <br />0 004 <br />18 <br />014 <br />NUGSC 7/30/1993 <br />230 <br />15 <br />1710 <br />76 <br />1680 <br />4 <br />NUGSC 823/1993 <br />1 90 <br />10 <br />1540 <br />82 <br />1560 <br />1144 <br />4 <br />506 <br />007 0 007 <br />374 <br />572 <br />0 001 <br />124 <br />002 <br />002 <br />129 <br />001 <br />0 0002 <br />0 012 <br />48 <br />001 <br />NUGSC 9/14/1993 <br />1 90 <br />13 <br />1550 <br />83 <br />1580 <br />2 <br />NUGSC 10/19/1993 <br />170 <br />12 <br />1510 <br />8 <br />1525 <br />22 <br />NUGSC 11/30/1993 <br />170 <br />2 <br />1480 <br />84 <br />1502 <br />1098 <br />2 <br />45 <br />005 0 005 <br />330 <br />375 <br />0 002 <br />129 <br />007 <br />002 <br />123 <br />003 <br />00002 <br />0 012 <br />51 <br />001 <br />NUGSC 12/1/1993 <br />170 <br />2 <br />1510 <br />8 <br />1550 <br />10 <br />NUGSC 1/18/1994 <br />140 <br />1 <br />1520 <br />82 <br />1551 <br />6 <br />NUGSC 227/1994 <br />250 <br />4 <br />1100 <br />8 <br />1110 <br />362 <br />NUGSC 321/1994 <br />220 <br />2 <br />1450 <br />85 <br />1470 <br />1082 <br />14 <br />332 <br />01 0 029 <br />404 <br />494 <br />0 001 <br />127 <br />032 <br />002 <br />110 <br />006 <br />00002 <br />0 009 <br />42 <br />001 <br />NUGSC 4/19/1994 <br />1 50 <br />12 <br />1340 <br />83 <br />1350 <br />26 <br />NUGSC 5/31/1994 <br />201 <br />10 <br />1310 <br />82 <br />1349 <br />78 <br />NUGSC 6/1/1994 <br />200 <br />9 <br />1310 <br />83 <br />1348 <br />958 <br />72 <br />258 <br />005 0 061 <br />396 <br />442 <br />0 001 <br />112 <br />232 <br />002 <br />103 <br />Oil <br />00002 <br />0 008 <br />39 <br />001 <br />NUGSC 72271994 <br />120 <br />12 <br />1570 <br />81 <br />1660 <br />18 <br />NUGSC 823/1994 <br />110 <br />8 <br />1700 <br />83 <br />1750 <br />1388 <br />12 <br />6 <br />013 0 019 <br />384 <br />638 <br />0 002 <br />133 <br />034 <br />002 <br />159 <br />005 <br />00002 <br />0 019 <br />75 <br />001 <br />NUGSC 9/30/1994 <br />023 <br />12 <br />1700 <br />84 <br />1760 <br />2 <br />NUGSC 1021/1994 <br />025 <br />12 <br />1750 <br />83 <br />1780 <br />5 <br />NUGSC 11/18/1994 <br />1 00 <br />3 <br />1800 <br />81 <br />1620 <br />1440 <br />5 <br />69 <br />006 0 011 <br />430 <br />740 <br />0 001 <br />140 <br />004 <br />002 <br />150 <br />0 014 <br />00002 <br />0 019 <br />61 <br />001 <br />NUGSC 12/13/1994 <br />110 <br />2 <br />1800 <br />79 <br />1850 <br />8 <br />NUGSC 1/18/1995 <br />125 <br />1 <br />1640 <br />8 <br />1690 <br />5 <br />NUGSC 228/1995 <br />110 <br />6 <br />1620 <br />8 <br />1620 <br />5 <br />NUGSC 3/15/1995 <br />110 <br />5 <br />1630 <br />78 <br />1600 <br />1200 <br />5 <br />351 <br />006 0 009 <br />388 <br />610 <br />0 001 <br />141 <br />009 <br />002 <br />132 <br />0 013 <br />00002 <br />0 015 <br />531 <br />002 <br />NUGSC 426/1995 <br />120 <br />11 <br />1530 <br />83 <br />1500 <br />20 <br />NUGSC 523/1995 <br />520 <br />10 <br />910 <br />82 <br />936 <br />650 <br />5 <br />1 77 <br />005 016 <br />264 <br />250 <br />0 002 <br />95 <br />635 <br />002 <br />673 <br />023 <br />00002 <br />0 005 <br />236 <br />005 <br />NUGSC 6/19/1995 <br />310 <br />12 <br />1090 <br />83 <br />1060 <br />68 <br />NUGSC 726/1995 <br />260 <br />10 <br />1320 <br />76 <br />1340 <br />48 <br />NUGSC 824/1995 <br />1 50 <br />12 <br />1470 <br />82 <br />1490 <br />24 <br />NUGSC 9/13/1995 <br />1 50 <br />13 <br />1510 <br />83 <br />1490 <br />1130 <br />5 <br />384 <br />384 0 017 <br />377 <br />547 <br />0 001 <br />117 <br />018 <br />002 <br />128 <br />002 <br />00002 <br />0 013 <br />495 <br />002 <br />NUGSC 102571995 <br />3 <br />1540 <br />82 <br />1550 <br />5 <br />NUGSC 1129/1995 <br />120 <br />2 <br />1450 <br />83 <br />1490 <br />22 <br />NUGSC 12/5/1995 <br />120 <br />2 <br />1460 <br />79 <br />1510 <br />1020 <br />14 <br />324 <br />001 <br />324 <br />007 0 005 <br />384 <br />520 <br />0 001 <br />121 <br />004 <br />002 <br />122 <br />0 009 <br />00002 <br />0 013 <br />494 <br />003 <br />NUGSC 1/3/1996 <br />120 <br />832 <br />5 <br />1610 <br />78 <br />1640 <br />56 <br />NUGSC 220/1996 <br />1 00 <br />853 <br />5 <br />1974 <br />82 <br />1400 <br />1170 <br />5 <br />373 <br />001 <br />373 <br />005 003 <br />393 <br />530 <br />0 001 <br />126 <br />014 <br />01 <br />130 <br />004 <br />00002 <br />0 013 <br />51 <br />005 <br />NUGSC 3/18/1996 <br />020 <br />895 <br />7 <br />1328 <br />83 <br />1340 <br />1060 <br />12 <br />NUGSC 4/1/1996 <br />1 00 <br />896 <br />4 <br />3300 <br />82 <br />1300 <br />970 <br />18 <br />NUGSC 5/6/1996 <br />120 <br />811 <br />10 <br />1035 <br />83 <br />1033 <br />720 <br />214 <br />188 <br />001 <br />1 88 <br />009 0 198 <br />333 <br />280 <br />0 002 <br />964 <br />368 <br />002 <br />827 <br />0 175 <br />00002 <br />0 006 <br />251 <br />004 <br />NUGSC 6/3/1996 <br />130 <br />82 <br />14 <br />1140 <br />84 <br />1122 <br />90 <br />NUGSC 7/1/1996 <br />110 <br />795 <br />12 <br />1228 <br />83 <br />1327 <br />970 <br />38 <br />311 <br />001 <br />311 <br />005 <br />380 <br />390 <br />0 001 <br />118 <br />1 08 <br />002 <br />106 <br />0 084 <br />00002 <br />0 009 <br />388 <br />003 <br />NUGSC <br />