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PERMITTEE NAME/ADDRESS (Include Facility NamelLocation if Different) NAME: Twentymile Coal LLC ADDRESS: 29515 Routt CR 27 Oak Creek, CO 80467 FACILITY: MINES 182 AND ECKMAN PARK MINE LOCATION: 29515 RCR #27 OAK CREEK, CO 80467 ATTN: Patrick Sollars, GM NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) DISCHARGE MONITORING REPORT (DMR) C00027154 005-Q PERMITNUMB •R DISCHARG NUMB -E;] ;] MONITORING PERIOD MMIDD/YYYY MM/DD(YYYY 01/01/201F- 0 313 112 0 1 2V Form Approved OMB No. 2040-0004 DMR Mailing ZIP CODE: 80467 MAJOR (SUER JC) Quarterly Monitoring for 005A External Outfall No Discharge O NAMEITITLE PRINCIPAL EXECUTIVE OFFICER tcmidy -de pemkydWwthal2hnd—rmmtand .1iattachmemswere prepared Under mydrtec-- supers — n acmrdance wah a system desgned to .awls that quelfnd personnel pmpedy gather and hWie the mfmrmttiotssubauad.Eased on my mquuy d the person or persons wtw mamme the system. a IMse persons duectH respmru!hie Tar gathering the iniorm.txm tim irtf mt.ta m submitted rs w the best of my kn.wkdge and belief, true m—rate, and complete 1 em aware that there are and impmmenl for ugfalse mfmmatwe. udmg the possdalty of ritenn athesfm sutlnl sgnlficant pentxm mg t QUANTITY OR LOADING QUALITY OR CONCENTRATION NO, FREQUENCY SAMPLE PARAMETER SIGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR AUTHORIZED AGENT EX OF ANALYSIS TYPE VALUE VALUE UNITS VALUE VALUE VALUE UNITS Conductivity SAMPLE MEASUREMENT *"'*' '*`~*• `****' "'~" /� V PERMIT '**•'• •'•'•• "'*** **"*' Req. Mon. Req. Mon. umho/cm Quarterly GRAB 000941 0 Effluent Gross REQUIREMENT QRTR AVG QRTR MAX Iron, total [as Fe] SAMPLE MEASUREMENT ~'~~ •**"* ••***• *'***• 0104510 PERMIT *'*•" *•••'• '•"•" *•"•. 3500 7000 mg/L Quarterly GRAB Effluent Gross REQUIREMENT QRTR AVG QRTR MAX Iron, total [as Fel SAMPLE MEASUREMENT **•**• *•*"' *•*•*• '*•'" AIA AM- ft'01045O0 0104500 PERMIT ***'*` '***** •"•*` ""•` Req. Mon. Req. Mon. ug/L Quarterly GRAB See Comments REQUIREMENT QRTR AVG QRTR MAX Copper, potentially dissolved SAMPLE MEASUREMENT *•*•** **•*** "•••* **•*** C zo G Z t) G) 013061 0 PERMIT •""• •"*••• "•'*' '*"'• Req. Mon. Req. Mon. ug/L Quarterly GRAB Effluent Gross REQUIREMENT QRTR AVG QRTR MAX Oil and grease SAMPLE MEASUREMENT **'*•* •••*'* ••••*" *••*** "•"` /V14 A4 /1/4- I 4 0358210 PERMIT ••'*•• '••'•• '•'•" '••••• •"'•' 10 mg/L Contingent GRAB Effluent Gross REQUIREMENT INST MAX Solids, total dissolved SAMPLE MEASUREMENT '•••'• *'•*** ""'~ ••.... 44455" 5¢S3 U fz Qo 7029510 PERMIT ••*••• •"••• •••*•• •"'*• Req. Mon. Req. Mon. mg/L Quarterly CALCTD Effluent Gross REQUIREMENT QRTR AVG QRTR MAX Oil and grease visual SAMPLE MEASUREMENT ""•• �} V ••^•• '*"" '••"* �I V 1"S L;" 840661 0 PERMIT '••"' Req. Mon. Y=1;N=0 '*"" """ """ """ Quarterly VISUAL Effluent Gross REQUIREMENT INST MAX NAMEITITLE PRINCIPAL EXECUTIVE OFFICER tcmidy -de pemkydWwthal2hnd—rmmtand .1iattachmemswere prepared Under mydrtec-- supers — n acmrdance wah a system desgned to .awls that quelfnd personnel pmpedy gather and hWie the mfmrmttiotssubauad.Eased on my mquuy d the person or persons wtw mamme the system. a IMse persons duectH respmru!hie Tar gathering the iniorm.txm tim irtf mt.ta m submitted rs w the best of my kn.wkdge and belief, true m—rate, and complete 1 em aware that there are and impmmenl for ugfalse mfmmatwe. udmg the possdalty of ritenn athesfm sutlnl sgnlficant pentxm mg t �I TELEPHONE DATE %J ''f-�- IFl1t r"rr+ 51-1d 70 �Z ) /! /j%s �/� 6*1z SIGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR AUTHORIZED AGENT TYPED OR PRINTED AREA Cade I NUMBER MMMDlYYYY COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) EPA Form 3320-1 (Rev.01106) Previous editions may be used. 08/26/2013 Page 1