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DMR Copy of Record <br />Permit <br />Permit #: C00045161 Permittee: Colowyo Coal Co LP Facility: COLOWYO MINE <br />Major: No Permittee Address: PO Box 33695 Facility Location: 5731 SOUTH HIGHWAY 13 <br />Denver, CO 80233-0695 MOFFAT COUNTY, CO 81641 <br />Permitted Feature: 002 Discharge: 002-A <br />External Outfall WORK AREA POND TO TAYLOR CREEK <br />Report Dates & Status <br />Monitoring Period: From 01/01/18 to 03/31/18 I DMR Due Date: 04/28/18 I Status: NetDMR Validated <br />Considerations for Form Completion <br />SETTLEABLE SOLIDS LIMIT APPLIES ONLY IF <=10YR,24HR PRECIP EVENT IS CLAIMED. IF CLAIM APPROVED BY WQCD,TSS & IRON LIMITS WILL NOT BE APPLIED TO REPORTED MEASUREMENTS - SEE I.A.2, PG. 3 FOR BURDEN OF PROOFREQUIREMENTS. OIL & GREASE - <br />I.B.1.B, PG. 5. BTEX MONITORING REQD ONLY IF WASHBAY DSCH TO WRK AREA POND <br />Principal Executive Officer <br />First Name: Barbara <br />Title: <br />SVP, Policy and Compliance, CCO <br />I Telephone: <br />303-452-6111 <br />Last Name: Walz <br />I <br />No Data Indicator (NODI) <br />Form NODI: <br />Parameter <br />Monitoring Location Season # Param. NODI <br />Quantity or Loading <br />Quality or Concentration <br /># of Ex. <br />Frequency of Analysis <br />Sample Type <br />Code Name <br />Qualifier 1 <br />Value 1 Qualifier 2 Value 2 Units Qualifier 1 Value 1 <br />Qualifier 2 Value 2 Qualifier 3 <br />Value 3 Units <br />Sample <br />00400 pH <br />1 - Effluent Gross <br />0 <br />Permit Req. <br />>= 6.5 MINIMUM <br /><= <br />9 MAXIMUM 12 - SU <br />01/30 - Monthly <br />IS - INSITU <br />Value NODI <br />C - No Discharge <br />C - No Discharge <br />Sample <br />00530 Solids, total suspended <br />1 - Effluent Gross <br />0 <br />Permit Req. <br /><= 35 30DA AVG <= <br />70 DAILY MX 19 - mg/L <br />01 /30 - Monthly <br />GR - GRAB <br />Value NODI <br />C - No Discharge <br />C - No Discharge <br />Sample <br />00545 Solids, settleable <br />1 - Effluent Gross <br />0 <br />Permit Req. <br />Req Mon 30DA AVG <br />Req Mon DAILY MX 25 - mL/L <br />01/30 - Monthly <br />GR - GRAB <br />Value NODI <br />C - No Discharge <br />C - No Discharge <br />Sample <br />00980 Iron, total recoverable <br />1 - Effluent Gross <br />0 <br />Permit Req. <br /><= 1 30DA AVG <br />Req Mon DAILY MX 19 - mg/L <br />01/30 - Monthly <br />GR - GRAB <br />Value NODI <br />C - No Discharge <br />C - No Discharge <br />Sample <br />03582 Oil and grease <br />1 - Effluent Gross <br />0 <br />Permit Req. <br /><= <br />10 INST MAX 19 - mg/L <br />77/77 - Contingent <br />GR - GRAB <br />Value NODI <br />C - No Discharge <br />Sample <br />30383 Benzene, ethylbenzene, toluene, xylene combination <br />1 - Effluent Gross <br />0 <br />Permit Req. <br />Req Mon AVERAGE <= <br />.1 INST MAX 19 - mg/L <br />01/DM - Once Per Monthly Discharge GR - GRAB <br />Value NODI <br />C - No Discharge <br />C - No Discharge <br />Sample <br />50050 Flow, in conduit or thru treatment plant <br />1 - Effluent Gross <br />0 <br />Permit Req. <br />Req Mon 30DA AVG Req Mon DAILY MX 03 - MGD <br />01/30 - Monthly <br />IN - INSTAN <br />Value NODI <br />C - No Discharge C - No Discharge <br />Sample <br />70295 Solids, total dissolved <br />1 - Effluent Gross <br />0 <br />Permit Req. <br />Req Mon 30DA AVG <br />Req Mon DAILY MX 19 - mg/L <br />01/90 - Quarterly <br />GR - GRAB <br />Value NODI <br />C - No Discharge <br />C - No Discharge <br />Sample <br />84066 Oil and grease visual <br />1 - Effluent Gross <br />0 <br />Permit Req. <br />Req Mon INST MAX 9P - N=0;Y=1 <br />01/30 - Monthly <br />VI - VISUAL <br />Value NODI <br />C - No Discharge <br />Submission Note <br />If a parameter row does not contain any values for the Sample nor <br />Effluent Trading, then <br />none of the following fields will be submitted for that row: Units, Number of Excursions, Frequency of <br />Analysis, and Sample Type. <br />Edit Check Errors <br />No errors. <br />Comments <br />Attachments <br />No attachments. <br />Report Last Saved By <br />Colowyo Coal Co LP <br />User: kblunt@tristategt.org <br />Name: Kurtis Blunt <br />E -Mail: kblunt@tristategt.org <br />Date/Time: 2018-04-10 10:12 (Time Zone: -06:00) <br />Report Last Signed By <br />