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COLOWYO MINE Page 1 <br />Station: GOSSARD WELL <br />Sample Range: Through 12{31(01 _ <br /> Std Coef Maximum Minimum Max Value Min Value M of <br /> Mean Dev Var Range Value Value Pound Pound Samp <br />FIELD MEASUREMENTS <br />Field pH (S. U.) 7. 57 8. 40 7 .00 10/08/98 06/27/88 61 <br />Field Temperature ideg C) 10. 8 ]. 0 28 16 .0 20 .0 4 .0 00(15 jBe ilj24j92 74 <br />Field Conductivity (umho/cm) 1770 223 13 858 2220 1362 09/27/98 03/19/97 59 <br />LABORATORY MEASUREME NTS <br />pH (Lab) (S. U~) 7 .02 8. 60 7 .30 08/19/91 10/19/83 73 <br />Conductivity (Lab) (umho/cm) 1803 171 10 860 2220 1360 10/17/91 03/29/85 73 <br />TDS I1BD deg C) lmgJl) 1257 133 11 668 1630 962 OS/23f 95 03 /13 j93 73 <br />Phosphate as P (mg/1) 0 .147 0. 225 153 0 .998 1. 000 0 .003 03/27/86 08/23/93 72 <br />Bicarbonate ae CaCO3 (mg/1) 957. 61 52. 67 12 511. 00 756. 00 295. 00 05/20/97 10/13/86 72 <br />Sulfate lmg)1) 455 .96 74. 04 lfi 416 .00 780 .00 364 .00 05f 23(95 03/29j85 72 <br />Ammonia Nitrogen as N (mg/1) 0. 07 0. 07 96 0 .34 0 .35 0 .01 12/28/89 12/12/83 72 <br />Nitrate + Nitrite as N (mg/1I 0. 80 0. 45 57 2 .89 2. 90 0. 01 03/14/84 03/27/90 67 <br />Nit Yate as N lmgjl) } ,45 4. 63 310 34 .fi9 39 .70 0 .01 OBj14j97 10/27J83 54 <br />Nit Yite as N (mg/1) 0 .02 0. 03 164 0 .14 0. 14 0 .01 10/12/88 06/19/07 49 <br />Arsenic Img/1) 0. 001 0. 001 94 0 .007 0. 007 0. 001 08/01/89 06/29/85 71 <br />Calcium (mgJ1) 97 .87 18. 77 19 150 .00 170 .00 12 .00 05/23 j95 11j30j93 72 <br />Iron (mg/1) 1 .516 4. 172 275 28 .995 29. 000 0. 005 11/19/90 11/18/94 71 <br />Lead (mg/1) 0. 029 0. 030 158 0 .240 0. 250 0. 010 10/04/89 03/14/04 72 <br />Magnesium (mg/1) 118 .10 19. 03 16 157 .00 172 .00 15 .00 05/23)95 11j30j93 72 <br />Manganese (mg/1) 0 .057 0. 149 262 1 .038 1. 040 0 .003 05/23/95 11/18/94 72 <br />Mercury (mg/3) 0 .0002fi 0. 00060 232 0 .00495 0. 00500 0. 00005 06/01/93 06/27/88 72 <br />Selenium Img/1) 0 .003 0. 003 76 0 .017 0 .017 0 .001 07 j31j00 1Oj13J86 72 <br />Sodium (mg/1) 156 .37 25. 01 16 181 .00 200. 00 19. 00 03/27/90 11/30/93 72 <br />21nc (mg/11 0 .065 0. 094 145 0 .455 0. 460 0. 005 09/18/85 03/28/91 72 <br />Below detection limit values included at 0.5 times detection limit <br />