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Interoffice MEMORANDUM to: DMR file, C-81-019 / from: Byron G. Walker subject: Review of Is` Quarter 2003 DMR, C-81-019 date: July 23, 2003 re: Colowyo letter to CDPHE, April 21, 2003, Re: Colowyo Coal Company, L.P. (Colowyo); CDPS NO. CO-00045161; First Quarter 2003 DMR The 1 s' Quarter 2003 DMR reports were reviewed Outfa11001 A (Streeter Pond). This pond was reported as having discharged. Parameters are reported as within allowable primary limits. The 30-day average flow was reported as 0.129 million gallons/day (mgd). The pond was discharging 0.045 mgd during the February 18 inspection and 0.078 mgd during the March 26, 2003 inspections by the Division. Outfall 002A (Facilities Area Pond). This pond was reported as having discharged in March. Parameters are reported as within allowable primary limits. The 30-day average flow was reported as 0.052 mgd. There was a discharge from this pond of 0.019 mgd on March 26, and no discharge on February 18 CDMG inspections. Outfa11003A (Loadout Pond). This pond was reported as not having discharged. However, there was a 0.03 cfs discharge at the time of the March 26, 2003 CDMG inspection. Outfa11004A (Gulch A Pond). This pond was reported as having discharged. The Total Suspended Solids 30-day average was 40 ml/l, 5 over the CDPS permit. This would have been a single sample as there was only discharge in March. There was a trickle discharge at this pond at the time of the March 26, 2003 CDMG inspection. Outfa11005A (Stoker Coal Pond). This pond was reported as having no discharge. The level of this pond was at the lower weep hole at the time of the March 26, 2003 CDMG inspection. Outfa11006A (Rail Loop Pond). The pond was reported as having no discharge. Outfa11007A (Prospect Pond). This pond was reported as having no discharge. This pond was dry at the time of the March 26, 2003 CDMG inspection. Outfall OOSA (West Pit Pond). This pond was reported as having no discharge. There was no discharge at the time of the inspections by the Division. Outfa11009A (Section 16 Pond). This pond was reported as having no discharge. This pond was not checked on the ground by the Division during this quarter. Outfall O10 A (Taylor Creek Pond). This pond was reported as having no discharge. There was no discharge at the time of the 15` Quarter 2003 inspections by the Division. Compliance with rules: