Laserfiche WebLink
<br />" <br /> <br />~ <br />.....- <br />..r::. <br />00 <br /> <br />NPDES Permit No. ,CO-0042161 <br />Salinitr Control Study <br /> <br />Twentymile Coal Company, <br /> <br />All inv~till'ated options deplete discharge flows, and are likely to require a surface 'Yater <br />permit. 'Option I entails complete elimination of discharge, Option 2 of 25 % and Option 3 of <br />a small~ fraction. Surface water, rights may be difficult to obtain if the depletion is deemed to <br />damage ia designated Alluvial Valley Floor. <br /> <br />All inv~tigated options would only marginally reduce salt load and IDS concentration in Fish <br />Creek, <br /> <br />Capital qasts of the investigated options range from 2.4 to 4.8 million dollars, withoperl\ting- <br />costs rlll/ging between $94,000 and $302,000 per year. These costs are prohibitive when <br />compare(( with the actual benefit that would be realized. It is therefore the recominendation of <br />this stu4v that no additional water treatment measures be implemented and that continued <br />discharg+ of mine water be followed in accordance with the existing permit. <br /> <br />~ <br /> <br /> <br />AHA Hlename; 1ASALCN'1.DOC <br /> <br />Page 34 <br /> <br />11,59 AM 09129/95 <br /> <br />, j <br /> <br />',., <br />"~'~; <br />li.ii. <br />