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TABLE 9a (Cont.) <br />Surface Water Parameter New Long List <br />Seneca Coal Company <br />Parameter Analysis Technique Units <br />Mercury <br />Total <br />ug/l <br />Nieleei <br />Poteatially-Dissolved <br />•_i, <br />Nitrogen, Ammonia <br />Total <br />mg/l <br />Nitrogen, Nitrate <br />Dissolved <br />mg/l <br />Nitrogen, Nitrite <br />Dissolved <br />mg/l <br />PH <br />Patassium- - <br />Direet Measurement <br />Dissolved <br />units <br />_9711 <br />Selenium <br />rade-`__a_ ; Dissolved <br />ug/l <br />8, <br />Petentially Disselved <br />ug/I <br />sodium <br />Disselved <br />:yams <br />sedium Adser-sptlon-Ratio <br />Calealated <br />unitless <br />Sulfate Dissolved mg/l <br />Sulfide Total mg/l <br />Suspended Solids Total mg/l <br />Zinc Petenially-Ditssel d _. " <br />Gati:en-�An"n-Bal-anepereen-t <br />Total Dissolved Solids at 1$0°C Dissolved mg/l <br />Tota•1-Dlssolve"e-I-fds-Galealated Caleulated u97l <br />Parameters crossed out were suspended in 2010 TR 69. These parameters will be analyzed <br />again one year prior to final bond release. Also, the `Potentially Dissolved' analytical <br />technique will be changed to `Dissolved' as recommended by the CDPHE. <br />* If Colorado Water Quality Control Commission changes the required analytical technique <br />for iron (for aquatic life) from total recoverable to another technique, then Seneca Coal <br />Company will do likewise. <br />Page A-22 <br />