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PARAMETER <br />I certify under penalty of law that that document and all attachments were prepared under my mrecnon or <br />supervision in a,eordaneer th a system designed to assure that qualified personnel properh gather and <br />QUANTITY OR LOADING <br />QUALITY OR CONCENTRATION <br />NO. <br />EX <br />FREQUENCY <br />OF ANALYSIS <br />SAMPLE <br />TYPE <br />VALUE <br />VALUE <br />UNITS <br />VALUE <br />VALUE <br />VALUE <br />UNITS <br />C onductivity <br />00094 1 0 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />...... <br />...... <br />...... <br />...... <br />PERMIT <br />REQUIREMENT <br />" "" <br />" "" <br />Req. Mon. <br />QRTR AVG <br />Req. Mon. <br />QRTR MAX <br />umholcm <br />Quarterly <br />GRAB <br />S olids, total dissolved <br />70295 1 0 <br />Effluent Gross <br />SAMPLE <br />MEASUREMENT <br />...... <br />...... <br />...... <br />...... <br />PERMIT <br />REQUIREMENT <br />Req. Mon. <br />QRTR AVG <br />Req Mon. <br />QRTR MAX <br />mg/L <br />Quarterly <br />CALCTD <br />NAME /TITLE PRINCIPAL EXECUTIVE OFFICE <br />I certify under penalty of law that that document and all attachments were prepared under my mrecnon or <br />supervision in a,eordaneer th a system designed to assure that qualified personnel properh gather and <br />,S <br />f G '( // ��� <br />TELEPHONE <br />DATE <br />/ t (f n V , / �T'� , / <br />VV l l {' <br />1 t th f t h u •d B d y qu f tl p n p• h g the <br />system best those persons directly relief, true, for enn the complete I information ware that ther submWed is <br />to the hest r ub knowledge and beast, we accurate. and complete I fine aware that there are sr knowing <br />peih, eslorsubm, mngtalsemfonnasmn mcludmgthepusmbihry <br />(� �� ( 7 <br />`y V <br />�,�� /� <br />SIGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR <br />AUTHORIZED AGENT <br />AREA Code I NUMBER <br />MM /DD/YYYY <br />TYPED OR PRINTED <br />PERMITTEE NAME /ADDRESS (Include Facility Name/Location if Different) <br />NAME: <br />ADDRESS: <br />FACILITY: <br />LOCATION: <br />Twentymile Coal Company <br />29515 Routt CR 27 <br />Oak Creek, CO 80467 <br />MINES 1 &2 AND ECKMAN PARK MINE <br />29515 RCR #27 <br />OAK CREEK, CO 80467 <br />ATTN: JERRY NETTLETON, ENV SUPERVISR <br />FROM <br />COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) <br />EPA Form 3320 -1 (Rev.01 /06) Previous editions may be used. <br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />C00027154 <br />PERMIT NUMBER <br />004 -Q <br />DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DD/YYYY <br />01/01/2011— <br />MM /DD/YYYY <br />03/31/201Z— <br />TO <br />DMR Mailing ZIP CODE: 80467 <br />MAJOR <br />(SUBR JC) <br />Quarterly Monitoring for 004A <br />External Outfall <br />Form Approved <br />OMB No 2040 -0004 <br />No Discharge <br />03/31/2011 Page 1 <br />