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TABLE 10a (cont.) <br />Surface Water Parameter New Long List <br />Seneca Coal Company <br />Parameter Analysis Technique Units <br />Mercury Total ug /1 <br />Nitrogen, Ammonia Total <br />mg /l <br />Nitrogen, Nitrate Dissolved <br />mg /1 <br />Nitrogen, Nitrite Dissolved <br />- Dlreet Measurement <br />mg /1 <br />PH - <br />anus <br />Selenium a.t_-t' -__ -j Dissolved <br />ug /1 <br />Sulfate Dissolved mg /1 <br />Sulfide Total rag /l <br />Suspended Solids Total mg /1 <br />Cation/Anion Balanee Galeuleted pe-Feent <br />Total Dissolved Solids at 180 °C Dissolved mg /1' <br />Total - Dissolved- Solids Galeulated Calculated mg <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 />