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Colowyo Coal Company <br />2017Annual Reclamation and Hydrology Report <br />Exhibit 2A <br />Water Quality Data <br />1992-2017 <br />New Upper Good Spring 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 <br />Total <br />Bicarb <br />No datum <br />=> Blank <br />Rate <br />pH <br />Temp <br />Conduct <br />pH <br />Conduct <br />-160 <br />TSS <br />as N <br />as N <br />as N <br />as N <br />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 <br />mgA <br />mgA <br />mgA <br />mgA <br />mgA <br />mgA <br />mgA <br />mgA <br />mg4 <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 <br />008 <br />41219 <br />49825 <br />000 <br />12607 <br />077 <br />010 <br />12228 <br />005 <br />000 <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 <br />Oil <br />7013 <br />14329 <br />000 <br />1895 <br />155 <br />009 <br />2906 <br />006 <br />000 <br />000 <br />1563 <br />003 <br />Coef. Var. <br />Range <br />1994 <br />25 <br />225 <br />3023 <br />1 1 <br />2842 <br />1250 <br />992 <br />54 <br />009 <br />632 <br />405 <br />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 />121 1 <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 <br />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 <br />001 <br />21500 <br />17000 <br />00004 <br />340 <br />001 <br />000 <br />1 10 <br />001 <br />00000 <br />0 001 <br />1690 <br />001 <br />Max at <br />427/1998 <br />11/18/1997 <br />7/82002 <br />3/6/1998 <br />427/1998 <br />3/6/1998 <br />8162001 <br />527/1993 <br />11/12004 <br />11/52001 <br />11/18/1994 <br />5/32011 <br />1/1/1999 <br />2232010 <br />7/32002 <br />11/12004 <br />822002 <br />5/17/1999 <br />5172001 <br />822002 <br />5/17/1999 <br />5172001 <br />7/312000 <br />11/102008 <br />1022000 <br />Min at <br />7/302013 <br />2/112002 <br />12/18/1996 <br />4/82002 <br />10242002 <br />527/1993 <br />5/8/2002 <br />9/30/1994 <br />520/1997 <br />10242002 <br />427/1998 <br />10242002 <br />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 <br />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 <br />Date <br />NUGSC <br />6/52000 <br />283 <br />823 <br />165 <br />1732 <br />77 <br />1310 <br />368 <br />NUGSC <br />7/32000 <br />046 <br />827 <br />11 3 <br />1520 <br />76 <br />1410 <br />25 <br />NUGSC <br />7/312000 <br />060 <br />815 <br />151 <br />1701 <br />79 <br />1550 <br />1270 <br />8 <br />588 <br />005 <br />005 <br />389 <br />535 <br />0 005 <br />126 <br />015 <br />0 005 <br />147 <br />0 005 <br />0 0002 <br />0 036 <br />465 <br />02 <br />NUGSC <br />8212000 <br />053 <br />838 <br />11 1 <br />1744 <br />77 <br />1660 <br />7 <br />NUGSC <br />9172000 <br />148 <br />749 <br />155 <br />1734 <br />75 <br />1640 <br />1420 <br />5 <br />008 <br />NUGSC <br />1022000 <br />121 <br />816 <br />122 <br />1924 <br />78 <br />1570 <br />1400 <br />5 <br />605 <br />005 <br />005 <br />406 <br />561 <br />0 005 <br />135 <br />007 <br />002 <br />141 <br />002 <br />0 001 <br />003 <br />492 <br />02 <br />NUGSC <br />11/82000 <br />435 <br />829 <br />25 <br />1182 <br />77 <br />1680 <br />5 <br />005 <br />NUGSC <br />12/42000 <br />032 <br />83 <br />29 <br />1054 <br />75 <br />1640 <br />9 <br />NUGSC <br />122001 <br />824 <br />1 9 <br />1004 <br />77 <br />1570 <br />5 <br />NUGSC <br />2/52001 <br />298 <br />84 <br />1400 <br />1250 <br />20 <br />44 <br />01 <br />44 <br />03 <br />005 <br />394 <br />610 <br />0 005 <br />144 <br />005 <br />02 <br />138 <br />003 <br />0 001 <br />0 014 <br />482 <br />005 <br />NUGSC <br />3/52001 <br />079 <br />834 <br />17 <br />949 <br />8 <br />1550 <br />20 <br />143 <br />134 <br />NUGSC <br />4/162001 <br />316 <br />853 <br />37 <br />838 <br />8 <br />1330 <br />20 <br />141 <br />991 <br />NUGSC <br />5/72001 <br />715 <br />848 <br />129 <br />1002 <br />82 <br />1210 <br />900 <br />124 <br />237 <br />005 <br />237 <br />03 <br />Oil <br />344 <br />410 <br />0 005 <br />126 <br />37 <br />02 <br />953 <br />0 129 <br />0 001 <br />001 <br />328 <br />005 <br />NUGSC <br />6/12001 <br />692 <br />863 <br />137 <br />1050 <br />410 <br />0 003 <br />117 <br />096 <br />0 002 <br />91 1 <br />0 109 <br />NUGSC <br />6/152001 <br />436 <br />851 <br />65 <br />973 <br />82 <br />1360 <br />68 <br />124 <br />110 <br />NUGSC <br />7/52001 <br />244 <br />828 <br />122 <br />1624 <br />78 <br />1510 <br />32 <br />132 <br />129 <br />NUGSC <br />8/62001 <br />204 <br />814 <br />121 <br />1362 <br />8 <br />1530 <br />1610 <br />14 <br />482 <br />002 <br />482 <br />03 <br />002 <br />388 <br />640 <br />0 001 <br />141 <br />017 <br />004 <br />153 <br />0 029 <br />00002 <br />0 016 <br />464 <br />001 <br />NUGSC <br />9202001 <br />046 <br />819 <br />96 <br />1630 <br />81 <br />1760 <br />1400 <br />6 <br />6 <br />005 <br />6 <br />005 <br />003 <br />403 <br />690 <br />0 001 <br />138 <br />007 <br />004 <br />151 <br />0 009 <br />00002 <br />0 018 <br />505 <br />001 <br />NUGSC <br />10/12001 <br />239 <br />839 <br />63 <br />1004 <br />83 <br />1350 <br />5 <br />994 <br />891 <br />NUGSC <br />10/172001 <br />042 <br />819 <br />48 <br />1223 <br />710 <br />0 001 <br />150 <br />003 <br />0 001 <br />161 <br />0 005 <br />NUGSC <br />11/52001 <br />044 <br />821 <br />44 <br />1183 <br />81 <br />1450 <br />1390 <br />5 <br />58 <br />01 <br />58 <br />023 <br />002 <br />353 <br />680 <br />0 001 <br />138 <br />004 <br />0 001 <br />143 <br />0 005 <br />00002 <br />0 005 <br />53 <br />001 <br />NUGSC <br />11/52001 <br />044 <br />821 <br />44 <br />1183 <br />660 <br />0 001 <br />147 <br />004 <br />0 001 <br />161 <br />0 006 <br />NUGSC <br />12/52001 <br />058 <br />793 <br />23 <br />1310 <br />79 <br />1840 <br />10 <br />153 <br />165 <br />NUGSC <br />122002 <br />823 <br />1 1 <br />1263 <br />8 <br />1740 <br />12 <br />690 <br />0 001 <br />153 <br />002 <br />00001 <br />156 <br />0 011 <br />NUGSC <br />2/112002 <br />716 <br />14 <br />1255 <br />78 <br />1710 <br />640 <br />00006 <br />149 <br />001 <br />00001 <br />150 <br />0 008 <br />NUGSC <br />3/142002 <br />761 <br />19 <br />830 <br />77 <br />1630 <br />600 <br />00007 <br />126 <br />002 <br />00001 <br />122 <br />0 005 <br />NUGSC <br />4182002 <br />477 <br />819 <br />37 <br />627 <br />79 <br />1500 <br />1190 <br />16 <br />291 <br />001 <br />291 <br />005 <br />002 <br />305 <br />550 <br />0 002 <br />153 <br />041 <br />004 <br />123 <br />0 028 <br />00002 <br />0 013 <br />459 <br />001 <br />NUGSC <br />5/8/2002 <br />394 <br />793 <br />53 <br />983 <br />8 <br />1520 <br />360 <br />48 <br />376 <br />001 <br />376 <br />005 <br />005 <br />301 <br />550 <br />00005 <br />128 <br />021 <br />00001 <br />121 <br />0 042 <br />00002 <br />0 013 <br />483 <br />001 <br />NUGSC <br />6282002 <br />1 01 <br />765 <br />169 <br />1422 <br />8 <br />1700 <br />32 <br />680 <br />00006 <br />133 <br />004 <br />00001 <br />155 <br />0 027 <br />NUGSC <br />7/82002 <br />804 <br />226 <br />1810 <br />83 <br />1940 <br />102 <br />930 <br />0 001 <br />134 <br />006 <br />00002 <br />203 <br />0 006 <br />NUGSC <br />822002 <br />797 <br />146 <br />2112 <br />79 <br />2120 <br />48 <br />169 <br />228 <br />NUGSC <br />10/3/2002 <br />394 <br />794 <br />67 <br />1842 <br />78 <br />1860 <br />131 <br />145 <br />NUGSC <br />10242002 <br />249 <br />82 <br />71 <br />1879 <br />75 <br />1930 <br />1550 <br />54 <br />001 <br />54 <br />005 <br />001 <br />425 <br />770 <br />0 001 <br />146 <br />002 <br />004 <br />164 <br />0 015 <br />00002 <br />0 018 <br />639 <br />001 <br />NUGSC <br />12/132002 <br />789 <br />24 <br />1950 <br />77 <br />1910 <br />10 <br />149 <br />174 <br />NUGSC <br />1232003 <br />75 <br />31 <br />1830 <br />77 <br />1800 <br />5 <br />123 <br />126 <br />NUGSC <br />2/122003 <br />77 <br />21 <br />1690 <br />79 <br />1630 <br />1270 <br />5 <br />291 <br />001 <br />291 <br />01 <br />003 <br />418 <br />580 <br />00011 <br />108 <br />005 <br />004 <br />108 <br />0 015 <br />0 0002 <br />0 001 <br />702 <br />001 <br />NUGSC <br />3/10/2003 <br />568 <br />81 <br />31 <br />1710 <br />8 <br />1660 <br />12 <br />140 <br />139 <br />NUGSC <br />4/12003 <br />908 <br />81 <br />55 <br />1600 <br />82 <br />1580 <br />14 <br />140 <br />122 <br />NUGSC <br />5282003 <br />1220 <br />82 <br />123 <br />1260 <br />8 <br />1270 <br />920 <br />398 <br />35 <br />001 <br />351 <br />01 <br />086 <br />335 <br />350 <br />00028 <br />122 <br />813 <br />004 <br />100 <br />0 043 <br />00002 <br />0 012 <br />367 <br />001 <br />NUGSC <br />622003 <br />11 70 <br />82 <br />95 <br />1330 <br />8 <br />1360 <br />434 <br />142 <br />106 <br />NUGSC <br />7/12003 <br />383 <br />81 <br />106 <br />1580 <br />82 <br />1510 <br />118 <br />144 <br />135 <br />NUGSC <br />8172003 <br />203 <br />8 <br />121 <br />1830 <br />8 <br />1830 <br />1440 <br />8 <br />48 <br />001 <br />49 <br />01 <br />003 <br />421 <br />680 <br />000095 <br />136 <br />004 <br />0 04 <br />146 <br />003 <br />00002 <br />0 016 <br />643 <br />001 <br />NUGSC <br />922003 <br />240 <br />81 <br />103 <br />1900 <br />79 <br />1860 <br />16 <br />159 <br />169 <br />NUGSC <br />10/72003 <br />319 <br />81 <br />73 <br />1900 <br />81 <br />1370 <br />6 <br />142 <br />157 <br />NUGSC <br />11/112003 <br />248 <br />83 <br />33 <br />1900 <br />82 <br />1690 <br />1460 <br />5 <br />48 <br />001 <br />48 <br />005 <br />001 <br />421 <br />740 <br />00005 <br />167 <br />006 <br />0 04 <br />173 <br />002 <br />00002 <br />0 019 <br />614 <br />001 <br />NUGSC <br />12/12003 <br />123 <br />87 <br />37 <br />1940 <br />81 <br />1510 <br />8 <br />163 <br />174 <br />NUGSC <br />