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P~wderhorn Coal Company <br />Paradox Hydrology System ' <br />Water Quality Report <br />Sit r 41':11 / <br />Loc <br />Elev 6925.00 10/28/96 7/19/97 9/14/97 5/08/97 6/06/97 ~ 7/11/97 <br />Field Parameters ' <br />Field Ph S.U. 8.43 8.26 8. 41 8.]4 A. 7.6 ~ 8.40 <br />Tempera tine C 2.00 3.00 3. 00 10.00 17. 40 18.70 <br />Conductivity UMHOC/CM 990.00 790.00 1020. 00 440.00 <br />Flow GPM no.n0o u27.ooo Sn.ono s543.o0o v71.ooM 3v.ooo <br />Lo hn rnl ury Pal nlnrYn rs <br />Acidity Mr:/L < 2. 00 < 2. 00 <br />AIY. As C, u:r.'i, Pli 4.5 Mn/I. 2GA. 00 231. On <br />Alk, Bicarb As Caco3 MG/L 264. 00 237. 00 <br />Alk, Carb As Caco3 MG/L < 2. 00 < 2, 00 <br />Alk, Hydrox A5 Caco3 MG/I, < 2. 00 < 2. 00 <br />Ho non, ni •,anl yr„I nr;/I. 50. 00 G0. 00 <br />Calcium, Ui ssolvcd MG/L 10'1. 00 79. 00 <br />Chloride MG/L 9. 00 B 4. 00 <br />Conductivity UMS/CM2 912. 00 691. 00 <br />Fluoride MG/L B . 20 B . 20 <br />Hardness As Caco7 MG/L 531. 00 378. 00 <br />Iron, Total MG/L 4. 89 <br />Iron, Oissolved MG/L < . O1 B . 02 <br />Magnesium, Dissolved MG/L 67. 00 93. 90 <br />Manganese, Total MG/L . 15 . 21 <br />Manganese., OisSOlved MG/L . OB . 06 <br />Ammonia Nitrogen_N MG/L B . 08 < . OS <br />Nitrate Ni trogen_N MG/L . 32 . 17 <br />Nitrite Nitrogen_N MG/L < . O1 B . O1 <br /> <br />No3_NO2 Nitrogen_N MG/L <br />. <br />32 <br />. I <br />18 <br />Ph At 25 Deg. Cent. S.U. 8. 10 8. 90 <br />Phosphorus, Or[hophos MG/L < . O1 . O7 <br />Potassium, Dissolved MG/L 3. 90 3. 40 <br />Sodium, Dissolved MG/L 23. 50 15. 20 <br />Solids, Dissolved MG/L 670. 00 470. 00 <br />Solids, Suspended MG/L 158. 00 184. 00 '~~ <br />Sulfate MG/L 270. 00 1G0. 00 '11 <br />Sulfide MG/L . 14 B . OB ' <br />Bicarbonate A5 Hco3 MG/L 722. 00 285. 00 1~i <br />Carbonate AS Co3 MG/L < 2. 00 < 2. 00 <br />Hydroxide As Oh 19G/L < 2. 00 < 2. 00 ~~ <br />Phosphate As Poo MG/L < . 07 ~ B . 07 <br />Catinn_Anion Balance PERCENT 2. 30 1. 00 <br />Sar RATIO . 94 . 34 <br />Solids, Diss. ICalcl MG/L 637. 00 ~ 446. 00 <br />Sum Of Anions MEQ/L 11. 20 8. 16 <br />Sum OE Cations MEQ/L 11. 80 8. 31 ,rl <br />Aluminum, Total Rrc. MG/[. 4. 28 3. 67 ' <br />Arsenic, Total Rec. UG/L B 7. 00 0 9. 00 <br />Barium, To Lal Rec. UG/L 114. 00 103. 00 <br />Cadmium, Total Rec. UG/L < . 50 <br />~ < . 50 <br />~ <br />Chromium, Total Rec. UG/L < 10. 00 B 10. 00 1 <br />Copper, Total Rec. UG/L B 10. 00 < 10. 00 .j~ <br />Lead, Total Rec. UG/L B 7. 00 B 9. 00 ~;1 <br />Mercury, Total Rec. UG/L < . 20 < . 20 I' <br />Molybdenum, Total Rec. UG/L B 1. 00 B 10. 00 <br />Nickel, Total Rec. UG/L < 10. 00 B 10. 00 ~' <br />Selenium, Total Rec. UG/L < 1. 00 B 1. 00 <br />Silver, Total ReC. UG/L B . 80 < . 50 <br />Zinc, Total Rec. MG/L B . 02 B . 03~ <br />Tds Ratio ANAL/CALL 1. 05 ~ 1. 05 <br />b] <br />N <br />Conditions: ~10/O1/96 To 9/30/97...NPDS OR SURF...Area=IIW • • <br />