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<br />J <br />1 <br />COLORADO DEPARTMENT OF HEALTH, Water Quality Control Division <br />Rationale - Page 5. Permit No. CO-0027146 <br />IV. FACILITY DESCRIPTION (continued) <br />B. Wastewater Treatment Description (continued) <br />Sanitary wastes, including bathhouse water goes to a non-discharging <br />aerated lagoon system. The system was designed for 0.0075 MGD, 5 <br />days/week or 0.00536 MGD (30-day average). This equates co a <br />population of 250. Presently, 30 people are employed ac the site. <br />It is unlikely chat the population will reach 200 by 1995. Thus, is <br />can be concluded that this system will be adequate to serve the <br />population ac the site during the life of this permit. <br />Table IV-2 -- Description of Treatment Facilities <br />Oucfall 10-Yr, 24-Hr <br />No. Treatment Area Served Design Capacity* Equ'_v. Vol. <br />001 Sedimentation Roadside Mine Water 0 .360 MGD <br />~~< Sedimentation Roadside Mine 'dater 0 .360 MGD <br />004 Sedimentation Cameo Mine Water 0 .432 MGD <br />005 Sedimentation Roadside Refuse Pile 0 .108 MG Sed, <br />006 Surface Runoff Raw Coal, Materials 0 .013 MG Sed, <br />007 Surface Runoff Shop, Parking, etc. O .G46 MG Sed, <br />008 Surface Runoff P-aw Coal, Prep Plant 0 .274 MG Sed, <br />009 Surface Runoff Loadouc, CLean Coal 0 .117 MG Sed, <br />010 Surface Runoff Loadouc, Claan Coal 0 .033 MC Sed, <br />011 Surface Runoff Refuse Disposal G .803 MG Sed, <br />012 Surface Runoff Equipment Storage 0 .007 MG Sed, <br />013 Surface Runoff Refuse Disposal 0 .401 MG Sed, <br />014**Surface Runoff Refuse Disposal 0 .596 MG Sed, <br />N/A <br />N/A <br />N/A <br />0.228 MG Runoff 0.228 <br />0.124 MG Runoff 0.124 <br />0.163 L4G Runoff 0.163 <br />0.583 MG Runoff 0.83 <br />0.261 MG Runoff 0.251 <br />0.:17 MG Runoff O.li7 <br />C.484 MG Runoff 0.484 <br />0.029 MG Runoff 0.029 <br />0.446 MG Runoff 0.446 <br />0.645 h1G Runoff 0.645 <br />* SThere a capacity is scared for sedimentation and runoff, this refers co - <br />1) the sediment storage capacity required by the Colorado Mined Land <br />Reclamation Division, and 2) the runoff containment capacity necessary co <br />contain the volume resulting from a 10-year, 24-hour precipitation event. <br />** Proposed - not yet constructed <br />V. PERFORMAflCE HISTORY <br />A. Monitoring Daca <br />1. Dischare~ Monicorin Reoorts: Discharge monitoring reports (DMR) <br />•rere reviewed for the period from January, 1939, through <br />December, 1991. Oucfalls 001 and 004 discharged continuaLLy <br />during this period. Oucfalls 003, 005, 006, 007, 008, 009, OLO. <br />011, 012 and 013 have not discharged during this period (outfall <br />003 has not been usec'. since 1979). Oucfall 002 discharged only <br />•-,. during the first and second calendar quarters of 1989. Outfall <br />1~ :. ~ - 'O'i'~9•Y~discharged only .during the.third calendar quarter of 1991. - <br />Monitoring results for the discharges noted are summarized in <br />T_abLes `/-1, V-2, '1-; and '1-4, <br />