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TABLE 2a <br />Surface Water Short Parameter List <br />Seneca Coal Company <br />• <br />Parameter Analysis Technique Units <br />Field <br />Conductivity Direct Measurement umhos /cm <br />pH Direct Measurement units <br />Temperature Direct Measurement °C <br />Laboratory <br />Iron Total Recoverable* mg /l <br />Manganese Dissolved mg /l <br />Suspended Solids Total mg /l <br />Total Dissolved Solids at 180 ° C Dissolved mg /l <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 />TR -69 <br />15 -3a- 9 <br />Revised 4/10 <br />