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original value (54 mg/1-original vs. 41 mg/1-duplicate). <br />,. The October duplicate for TR-C verified 12 of the 15 parameters to be within 5% of the <br />original value obtained. The duplicate sample value for iron was 88% of the original value <br />(0.08 mg/1-original vs. 0.07 mg/1-duplicate). The duplicate sample value for manganese was <br />57% of the original value (0.06 mg/1-original vs. 0.034 mg/1-duplicate). The duplicate sample <br />value for potassium was 93% of the original value (1.5 mg/1-original vs. 1.4 mg/1-duplicate). <br />7.0 Spring and Seep Survey <br />A spring and seep survey is performed annually in May, or as soon as practical after <br />snowmelt, covering the base of reclaimed areas along Trout Creek. Flow from springs or <br />seeps that exceed approximately 20 gpm are measured while flow from smaller expressions <br />are visually estimated. Additionally, a sample will be taken annually from larger, exceeding <br />20 gpm, springs and seeps. The complete list of parameters used for surface water monitoring <br />sites, except for TSS, is analyzed to characterize the type of flow. <br />A survey was conducted May 19, 2008 to evaluate springs and seeps which existed during <br />past surveys at the base of the ridge along Trout Creek from the northern Moffat boundary to <br />the base of West Ridge. A total of 15 spring locations were surveyed. Of these 15 spring <br />locations, 12 were either damp or had flowing water during the 2008 survey. A total of 21 <br />seep locations were surveyed. Of these 21 seep locations, 6 were either damp or had flowing <br />water during the 2008 survey. Table 13 contains a listing of the springs and seeps observed <br />from 1993 through 2008. Spring and seep locations are shown on Plate 2. <br />Twelve of the 12 springs either damp or flowing exhibited sufficient discharge for flow to be <br />estimated or calculated and field parameters measured during the 2008 monitoring period. <br />Six of the 6 seeps either damp or flowing also exhibited sufficient discharge for flow to be <br />estimated and field parameters measured. Several of the springs and seeps were sampled as <br />single units due to their close proximity to each other and their apparent common origin. <br />Flow estimates and field parameters for these springs and seeps are provided in Table 14. <br />Springs SPR-1, SPR-3, SPR-5 and SPR-11 and seep SE-23 had sufficient flow, singularly or <br />in combination with other springs or seeps, to require additional laboratory water quality <br />sampling in accordance with the mine's permit. Results of these analyses are provided in <br />Table 15. <br />8.0 Moffat Stability Monuments <br />A system of three control points and six monuments were established in the final Moffat pit <br />area during the fourth quarter of 1997. The purpose of the monuments is to monitor the <br />hillslope for long-term stability. The three control points were placed to form a large triangle. <br />The reference control point was established along the top of the hillside in undisturbed ground <br />15