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<br />The October duplicate for TR-B showed 12 out of 15 parameters to be within 5°Io of <br />the original value obtained. The duplicate sample value for iron was 88% of the original <br />value (0.17 mg/1-original vs. 0.15 mg/1-duplicate). The duplicate sample value for manganese <br />was 92oIo of the original value (0.013 mg/1-original vs. 0.012 mg/1-duplicate). The duplicate <br />sample value for sulfate was 86°Io of the original value (70 mg/1-original vs. 60 mg/1- <br />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 10, 2007 to evaluate springs and seeps which existed <br />during past surveys at the base of the ridge along Trout Creek from the northern Moffat <br />boundary to the base of West Ridge. A total of 15 spring locations were surveyed. Of these <br />15 spring locations, 9 were either damp or had flowing water during the 2007 survey. A total <br />of 21 seep locations were surveyed. Of these 21 seep locations, 6 were either damp or had <br />flowing water during the 2007 survey. Table 13 contains a listing of the springs and seeps <br />observed from 1993 through 2007. Spring and seep locations are shown on Plate 2. <br />Eight of the 9 springs either damp or flowing exhibited sufficient discharge for flow <br />to be estimated or calculated and field parameters measured during the 2007 monitoring <br />period. Three of the 6 seeps either damp or flowing also exhibited sufficient discharge for <br />flow to be estimated and field parameters measured. Several of the springs and seeps were <br />sampled as single units due to their close proximity to each other and their apparent common <br />origin. Flow estimates and field parameters for these springs and seeps are provided in Table <br />14. <br />Springs SPR-1, SPR-3, SPR-5 and SPR-11 and seep SE-23 had sufficient flow, <br />singularly or in combination with other springs or seeps, to require additional laboratory water <br />quality sampling in accordance with the mine's permit. Results of these analyses are provided <br />in Table 15. <br />8.0 Moffat Stability Monitoring Wells <br />Six wells were installed in the Moffat area to monitor ground water levels. A <br />complete discussion of the purpose of the wells is provided in Section 4.6.9 of the permit <br />document. Elevations of the static water levels in the Moffat wells are shown in Chart 38 <br />with the tabular data provided in Table 16. The 215 and 218 series wells have generally been <br />15 <br />