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The alternatives are: <br /> OPTION <br /> A. All flows from the mine report to the 016 ponds for <br /> settling and discharge to Dutch Creek. (Present <br /> system) . <br /> B. Flows from the mine report to the 001 ponds for <br /> settling and discharge to Coal Creek. (Back-up in <br /> the event of problems elsewhere in the system) . <br /> C. Flows from the mine report to the 020 pond for <br /> settling and discharge to Coal Creek. (Back-up in <br /> the event that the coal preparation plant is not <br /> operating for an extended period, and/or problems <br /> occur elsewhere in the system) . <br /> D. Mine flows routed between the ponds, which can be <br /> used in combination, and/or in conjunction with the <br /> treatment plant. (e.g. 016 and 001; 016, 001 , <br /> treatment plant and 020, etc. ) <br /> E. Mine flows report to water treatment plant. Overflow <br /> from the hydroclone/recycle sump goes to 020 pond <br /> for "finishing"and then discharge to Coal Creek. <br /> Underflow goes to the raw coal sump, then into the <br /> coal preparation plant cycle. (Normal operating mode <br /> when the coal preparation plant is operating) . <br /> F. Mine flows report to water treatment plant. <br /> Overflow from the hydroclone/recycle sump goes to <br /> 020 pond for "finishing"and then discharge to Coal <br /> Creek. Underflow goes to coal preparation plant's <br /> raw coal sump and thickener. (Normal operating mode <br /> when the coal preparation plant is not operating) . <br /> G. Mine flows report to water treatment plant. <br /> Overflow from hydroclone/recycle sump goes to 020 <br /> pond for "finishing" and then discharge to Coal <br /> Creek. Underflow goes to 001 ponds, is removed in <br /> normal pond cleaning. <br /> H. Mine flows report to water treatment plant. <br /> Overflow from hydroclone/recycle sump goes to 020 <br /> pond for "finishing" and then discharge to Coal <br /> Creek. Underflow goes to plant refuse filter. <br /> I. Mine flows report to water treatment plant. <br /> Overflow from hydroclone/recycle sump goes to 001 <br /> pond for "finishing" and then discharge to Coal <br /> Creek. Underflow goes to raw coal sump, thickener <br /> and plant refuse filter. <br /> Attachment 2 <br />