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Mr. Michael P. Boulay <br />nvrronmental Protection Specialist DEC 1 4 2004 <br />~lorado Division of Minerals and Geology <br />1313 Sherman Street -Room 215 Division ~f Minerals and Geology <br />Denver, Colorado 80203 <br />Re: Ken- Coal Company- Marr Mine (Femur No. G80-006), Responses to Comments on 2003 Annual I~3ydrology <br />Report <br />Dear Mr. Boulay: <br />In response to your comments on the 2003 Kerr Annual Hydrology Report (AHR), we are pleased to provide the <br />following written responses and supporting documentation. Our responses are provided in acomment/response <br />format to facilitate your review and supporting documentation is provided in the form of a revised Annual <br />Hydrology Report. <br />IaJ The 2003 zettter3em-eetarfr fiam Qxal~r 2002 dmac,gli Septerrrxr 2003. Field perrarreters are not prozidad inAppertc~x A, <br />2003 Fuld Data, forarry ~~ rrxlrrirttl nrxxnhly or-gtaartzrty G~ta+xa-2002 sarr~ forszafa~ duo~e parras, allieual vdls, aril rho <br />spoil zadl L ikecerse, tauter lend rreasurrrreras were rmt rePortErl for Cktal~r 2002 for doe allurial wells aril rl~e sp«l ~ <br />es e: The 2003 AHR was mistakenly prepared on acalendar--yearratherthan awater-year basis, consequently <br />the 2002 sampling data was inadvertently not included or incorporated in the report. Based on the CDMG's <br />comment, the October 2002 information has now been incorporated into the accompanying revised repon, as <br />referenced in the revised AHR and further addressed bythe following specific responses. <br />~b) CYua~r 2002 2euiea-quality data are real p>tisau~f far Wells AQ2A, AP-1, AP-2, aced SP-01. <br />Res~oonse: October 2002 water qualiry for the referenced wells has been added to Appendices B, C, and D and <br />incorporated into Tables 1 through 5 and Figures 2, 4, and 5. <br />1 ~ It appean tlazt rro sara~ale tans cdl~tetl dttrirgApril 2003 for Wills A 42A aril SP-01. <br />Response: Field data sheets and sample analyses for the referenced wells are provided in Appendices A and <br />Appendices B and C, respectively. <br />1~ Sargbles were inMay 2003 irzctQad g<'April at Wells AP-1 andAP-2, dt~ to tlae fraP.en ctrediticva gFtlae cells. <br />Re-s~-no~ The CDMG's statement is accurate, as reflected in Section 2.0, Monitoring and Analysis Summary, of <br />the revised report. <br />2) Appt~dix B is cluplir<ct~l for tfa° rrire arut allurial zrtuer gcaaluy and for doe »ir~ ama spoil zetttea-qualu}c Please reuse the feet <br />aarrnlirtgly arnl iauert an additiorxtl appendix. <br />Re__ s:_nanse: The master copy of the AHR was reviewed and corrected, as necessary, to provide accurate references <br />and the correct supporting documentation (appendices). The accompanying revised AHR incorporates these <br />corrections. <br />.f There appear to Ix data traraoipttaz ernas aril irxtvazstaaaa in doe presentauar cf the 2003 neuter~rurarralyutal data. The <br />fdlozar~ pna~ilerrs mere <br />