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PERMITTEE NAME/ADDRESS (Include Facility Name/Location if Different) NAME: New Elk Coal Company LLC ADDRESS: 12250 Highway 12 Weston CO 81091 FACILITY: New Elk Mine LOCATION: 12250 Highway 12 Weston, Co. 81091 ATTN: LOUIS HEAD, SECRETARY NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) DISCHARGE MONITORING REPORT (DMR) CO0000906 50C PERMIT NUMBER DISCHARGE NUMBER MONITORING PERIOD MM /DD/YYYY MM /DD/YYYY 01/01/2015 TO 03/31/2015 Form Approved OMB No. 2040.0004 DMR Mailing ZIP CODE: 81082 MINOR LAMAS Downgradient Monitoring Well Monitoring Well No Discharge ❑ NAMEITITLE PRINCIPAL EXECUTIVE OFFICER ion in I`yy°cmwth t °"a "nstxhmcnexmeprcpe�od mvnrmy mxtwll pen ord°ne sy goal to assuro dot qualirwd Pm l po{xnly gatlwr orcl ealmte the j.1. ti.. submit Bawd on roy inquiry of the pews or peraom x rmmge the systen�erthowrot mdi�etly e>pnmiblefer theitif r ti ,,their °,�te�=ab�tfdw QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENC SAMPLE TYPE PARAMETE to Ilia bnl of my Anoxiodga and belief, tole, accurate, comp low I —axan: dut throe are a fmant submittingfit idb, —tiom including the pmaiwity orrne and iros.;.aar.,�tr �;;ax;ng ANALYSIS VALUE VALUE UNITE VALUE VALUE VALUE UNITS AUTHORIZED AGENT AREA cave NUMBER MMIDD/YYYY COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Referents all attachments here) Temperature water deg. SAMPLE ...,„ . „_,. . „„ 12.3 12.7 13.0 3/90 1 centigrade MEASUREMEN PERMIT „ „„ „, „,„, Req. Mon. , „.„ deg C Monthly INSITU 0001010 REQUIREMENT 30DA AVG Conductivity 1150 1163 1170 3/90 G MEA UREMEN 0009410 PERMIT Req. Mon. 30DA AVG ” "•• dS /m Monthly GRAB Intake from Well REQUIREMENT pH SAMPLE ._,.,. •,•,,• • „,• 7.7 7.7 7.8 3/90 1 MEASUREMENT 0040010 PERMIT 6.5 MINIMUM • *•"`• 8.5 MAXIMUM SU Monthly INSITU Intake from Well REQUIREMENT Nitrite plus nitrate „ 5.6 5.77 5,88 3/90 G MEA UREMEN dissolved 1 det PERM! . „.„ ....., .„ _ „__. 10 Re . Mon. mg /L 0063110 REQUIREMENT 30DA AVG DAILY MX Monthly GRAB Sulfate dissolved (as 106 108 110 3/90 G MEA UREMEN PERMIT 250 30DA AVG Req. Mon. DAILY MX mg /L Monthly GRAB 0094610 REQUIREMENT Arsenic dissolved (as As) SAMPLE MEASUREMENT <0.0002 0.0004 0.0007 3/90 G 0100010 PERMIT ” ” — 50 30DA AVG Req. Mon. DAILY MX ug/L Monthly GRAB Intake from Well REQUIREMENT Cadmium dissolved (as SAMPLE MEASUREMENT .,.,._ ••••„ „- <0.0001 <0.0001 <0.0001 3/90 G Cd) PERMIT 5 300A AVG Req. Mon. DAILY MX ug /L Monthly GRAB 0102510 REQUIREMENT NAMEITITLE PRINCIPAL EXECUTIVE OFFICER ion in I`yy°cmwth t °"a "nstxhmcnexmeprcpe�od mvnrmy mxtwll pen ord°ne sy goal to assuro dot qualirwd Pm l po{xnly gatlwr orcl ealmte the j.1. ti.. submit Bawd on roy inquiry of the pews or peraom x rmmge the systen�erthowrot mdi�etly e>pnmiblefer theitif r ti ,,their °,�te�=ab�tfdw TELEPHONE DATE Louis Head, Secretary 303 300 -8879 04/10/2015 to Ilia bnl of my Anoxiodga and belief, tole, accurate, comp low I —axan: dut throe are a fmant submittingfit idb, —tiom including the pmaiwity orrne and iros.;.aar.,�tr �;;ax;ng ��t�for SIGNATUR OF PRINCIPAL EXECUTIVE OFFICER OR TYPED OR PRINTED AUTHORIZED AGENT AREA cave NUMBER MMIDD/YYYY COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Referents all attachments here) 30 DAY AVERAGE IS HIGHEST MONTHLY AVG. DURING PERIOD REPORTED. TSS & TOTAL IRON LIMITS WILL BE WAIVED AND SETTLEABLE SOLIDS LIMITS APPLIED FOR <-_10YR 24HR PRECIP EVENT- SETT.SOLIDS LIMIT WILL BE WAIVED FRO >10YR 24HR PRECIREVENT –SEE ALT LIMITSIBURDEN OF PROFF REQMNTS -IA.1 PG.3