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-24- <br /> of this document. At this time, no bedrock ground water monitoring is <br /> required because the anticipated insignificant impacts do not warrant the <br /> cost of drilling to such great depths (2,000-3,000 feet) . Therefore, the <br /> applicant will only monitor alluvial ground water. <br /> All observation wells will be monitored on a quarterly basis. Water <br /> levels and samples will be taken. ,Dater samples will be analyzed for the <br /> following constituents: <br /> pH Magnesium <br /> Temperature Sulfate <br /> Specific Conductivity Iron <br /> Total Dissolved Solids idanganese <br /> Bicarbonate tMercury <br /> Calcium <br /> The proposed operation is in compliance with the requirements of this <br /> section. <br /> VII. Probable H drolo is Consequences of Mining and Cumulative <br /> Hydrologic Impacts Study - Rules 2 05 b(3) and 2 07 6 2 (c) <br /> This Cumulative Hydrologic Impact Study (CHIS) for the drainage basin of <br /> the Roaring Fork River has been prepared by the Colorado 'tined Land <br /> Reclamation Division (CMLRD) pursuant to Rule 2.07.6(2) (c) . This CHIS <br /> assesses the probable cumulative hydrologic impacts of all anticipated <br /> coal mining operations upon the general area of the Roaring Fork ever <br /> Valley (Figure 1 ) . Included in this as sment are all existing co�ll <br /> mines and those proposed coa mines for vhich permit applications have <br /> been submitted to the Division This study has been prepared using <br /> information and analysis con ained in the Coal Basin mines per-nit <br /> application, information and analysis contained in other permit <br /> applications of mines located in the general area and other available <br /> information, including site visitation by members of the Division staff. <br /> Coal mining operations in the study area include: <br /> 1 . Garfield Energy Corp. - Sunlight .dine, CMLRD File No. C-046-81 <br /> 2. Snowmass Coal Company - North Thompson Creek ,dines, C;dLRD File <br /> No. C-025-31 <br /> 3. ?did-Continent Resources, Inc. - Coal Basin Mines, CM RD File <br /> / IJo. C-�Jl i-al <br /> ;did-Continent will be undermining the headwaters of 'tuddy ee <br /> �� y _r__.K, a <br /> trioutary of the forth Fork of the Gunn ,son. - The nd r�r u r<inas t <br /> / kz that point wil l :,e over 2,000 feet cel3wQri `gr�unauf l^ ��5 '• bSlcen effects are projected to be small , therefore, this portion of the Coal I <br /> Sasin mining eoeration will not oe considered in the cumulative j <br /> hydroloaic imoact assessment. The other t.vo :nines are entirely within <br /> the Roarina For{ crainage oasin. <br />