Laserfiche WebLink
MLRD Page 2 <br />Supplemental Information <br />from the hydroclone /recycle sump is flocculated and then <br />reports to the 020 pond for "finishing" (i.e. settling of <br />fine solids) prior to discharge to Coal Creek at Outfall <br />020. Underflow goes to the coal preparation plant (i.e. <br />sump and /or thickener and /or plant refuse filter), then <br />through the normal plant cycle, wherein coal solids are <br />separated from non -coal refuse and the refuse is conveyed <br />to the approved refuse disposal area. <br />Underflow to 001 Ponds: All mine water reports to the water <br />treatment plant. Overflow goes to 020 pond for "finishing." <br />Underflow goes to 001 ponds, is removed in normal pond <br />cleaning. <br />Overflow to 001 Ponds: All mine water reports to the water <br />treatment plant. Overflow goes to 001 ponds for "finishing." <br />Underflow to coal preparation plant cycle. <br />Split Flow: Flows are divided between the 016 ponds and the <br />water treatment plant. The plant design capacity of up to <br />1,000 gpm, combined with the 016 pond capacity (1,500 gpm) <br />allow for a combined treatment capability of up to 2,500 gpm. <br />Note: Attachment A, Process Flow Diagram; <br />Attachment B, Process Flow Description; <br />Attachment C, Certification of Calculations; <br />Attachment D, Calculations for 020 Pond; <br />Attachment E, Calculations for 001 Ponds and <br />Ditch. <br />In addition, Mid - Continent requests permission to proceed with <br />modifications to the 020 pond. These include: <br />- Installation of underflow trash rack to <br />prevent escape of floating solids. <br />(Attachment F} <br />- Installation of a stilling plate across the <br />pond to slow flows and enhance settling of <br />solids. (Attachment G) <br />Yours truly, <br />1/4 &-o- <br />Mid - Continent Resources <br />Diane Delaney <br />