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Introduction <br />TDe laformntiom assembled in this 1996 Annual Hydrology Report (AHR1 imcludea data <br />collected from approved monitoring sites established nt Seneca Coal Company's (SCC) Seaecn <br />II-N Mina (State Permit No. C-B2-057). Loeetions of monitoring cites discussed in this <br />report can be found by referring to Exhibit 7-1, 6ydrelogy Monitoring Map, which may be <br />found la the Seneca II-W Permit ADDlicatioa Package (PAP). <br />All ref stances to 1996 for to "this yanr') x111 be for Water Year 1996 (October 1, 1995 <br />through Saptamber 30, 1996) unless otherxi ea noted. All tables referred to is the <br />following text can be found in Appendix A. Ia addition, a table of contents for Appendix <br />A is given at the beginainp of that appendix. Fiqura 1 IAppendix A) shows the area mlaad <br />is 1996. !fining began at Seneca II-W is Auguct, 1990. <br />Pield conductivity and pti maters were calibrated prior to each days use. The conductivity <br />mater is calibrated using a potassium chloride solution with fln electrical conductivity in <br />the 1000 to 3000 umhoa/cm range. The pe mater is calibrated using NES traceable buffare <br />• xitb p8 values of 7 and 10. <br />Prior to October 1, 1959, all field conductivity values collected at Seneca II-x <br />monitorimp sites were not corrected for temperature li.e., 25° C1. Field conductivity <br />data starting on October 1. 1989 were temperature corrected to 25° C. The formula for <br />correcting son-corrected conductivity data may be found in the 1990 through 1992 AHRa. <br />SCC has instituted a raw monitoring site numbering system £or i:s new Paradox'" water <br />quality database. This new system is detailed in Table A. Foz convenience sake, this <br />table has bees placed at the end of the Table of Contents Isee previous page). In <br />addition, Table 3, Svawary of Ground Water Monitoring Wells; Table 30, Summary of Surface <br />Water Hoaitoriaq Sites; and the Table of Contents of Appendices C through E Dave all bean <br />revised to correlate the old site land map) acme to the new (Paradox) computer name. The <br />sew computer name will be used throughout the following text. <br /> <br />