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West Elk Mine 2014 Annual Hydrology Report <br />Table 1. Baseline and Routine Monitoring Frequencies <br />10 <br />Routine Monitoring <br />Baseline Monitoring <br />Rising Limb <br />April 3 to May 13 <br />Peak Flow <br />April 21 to June 26 <br />Low Flow <br />July 10 to October 8 <br />Month <br />Flow / Level <br />Field <br />Parameters <br />Laboratory <br />Analysis <br />January <br />February <br />March <br />April <br />X <br />X <br />X <br />M <br />May <br />X <br />X <br />X <br />June <br />X <br />X <br />X <br />July <br />X <br />X <br />X <br />August <br />X <br />X <br />X <br />September <br />X <br />X <br />X <br />October <br />November <br />December <br />Adapted from CDRMS (2006) <br />The Upper and Lower North Fork and Middle Sylvester Gulch monitoring sites have <br />expanded analytical parameter suite lists, in order to provide data for the on-going <br />characterization of the North Fork. The North Fork and Middle Sylvester Gulch lab <br />parameters include those listed in Table 2, plus chromium, nickel, silver (total), cyanide <br />(total), iron (total recoverable), alkalinity (total CaCO3), bicarbonate, carbonate, <br />hydroxide, nitrogen (ammonia), ortho-phosphorus (dissolved), and sodium adsorption <br />ratio (SAR). <br />June 2015 HydroGeo, Inc. <br />