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otherwise deleterious regraded spoil has been found by the Division during mine <br />inspections. <br />Based on the baseline data and assessment provided in the permit application, <br />monitoring commitments described for both the Wadge and Wolf Creek/Sage Creek <br />spoils, and monitoring results and observations to date, the operation is in <br />compliance with performance standards related to acid forming and toxic forming <br />spoil. <br />E. Surface and Ground Water Monitoring <br />C.rnnnrl Water <br />Tab 7 of the permit application contains baseline ground water hydrology <br />information. Section 7.1 contains the baseline information for the original permit <br />area, while Section 7.2 contains updated information for the Seneca II -W South <br />Extension Area. The ground water information section of the application was most <br />recently updated in 2002 in association with Permit Revision No. 3 (PR -3). Tab 15 <br />describes the operational ground water monitoring program. The current hydrologic <br />monitoring program is presented in Appendix 15 -3a of the permit application <br />package, updated in association with TR -63 in 2009 and TR -69 in 2010. <br />Monitoring locations are shown on Exhibits 7 -1 (for the original permit area) and 7- <br />IA (for the South Extension Area). <br />Ground water studies in conjunction with the Seneca II -W Mine site have been <br />concentrated in the Upper Mesaverde Group and alluvial aquifers. Specifically, <br />aquifer characteristics and /or water quality analyses have been performed in the <br />Wolf Creek underburden, Wolf Creek coal, Wolf Creek overburden, Sage Creek <br />coal, Sage Creek overburden, Wolf Creek/Wadge Interburden, Wadge coal, Wadge <br />coal overburden, and the Hubberson Gulch alluvium. Quantitative and qualitative <br />data have also been collected from ten springs and seeps in and adjacent to the <br />permit area, and three spoil springs that have developed on reclaimed areas. The <br />current monitoring plan requires monitoring of water quality and /or water levels at <br />specified intervals at thirteen bedrock wells, two alluvial wells, four natural springs <br />and seeps and five spoil springs. Each year following snowmelt, any additional <br />spoil springs with discharge of at least 5 gpm are documented, monitored in spring <br />and fall, and reported in the Annual Hydrologic Report for the year. <br />Each of the identified aquifer zones is hydraulically discontinuous with the units <br />above and below. Therefore, each aquifer will be discussed as a separate entity. <br />Seneca II -W Findings Document 26 C- 1982 -057 <br />Permit Revision No. 6 January 6, 2012 <br />