Laserfiche WebLink
E. Pursuant to AQCC Regulation 6, Part A, Subpart A, General Provisions, and Permit <br />09GU1382 Condition 9.a, at all times, the facility and control equipment shall, to the <br />extent practicable, be maintained and operated in a manner consistent with good air <br />pollution control practices for minimizing emissions. At the time of the inspection, <br />opacity was observed coming from the baghouse of the rock dust silo during <br />product loading, and the area surrounding the baghouse had significant material <br />buildup from longer-term escaping emissions. Following the inspection, the source <br />reported that the opacity was the result of an incorrectly installed access door <br />gasket, which was replaced immediately following the inspection. Based on this <br />information, the Division has determined that the source was not operating control <br />equipment in a manner consistent with good air pollution control practices for <br />minimizing emissions during product loading, violating AQCC Regulation 6, Part A, <br />Subpart A, General Provisions, and Permit 09GU1382 Condition 9.a. <br />Enforcement Action is recommended to address the violations listed above. <br />Following the inspection, the Division received APENs for the main office building server <br />emergency generator and the rock dust silo on February 15, 2013. <br />As noted on pages 7 and 8 of this report, the Division suspects that MCC may also have <br />uncontrolled VOC emissions in excess of APEN-reporting and permit thresholds. In a <br />request letter dated January 11, 2013, the Division requested additional information from <br />MCC regarding potential VOC emissions. At the time of this revised report submission, <br />the Division has not yet received the necessary records, and is unable to determine <br />compliance concerning the VOC issue mentioned above. Similarly, the source has not yet <br />submitted any APENs for VOC emissions from ventilation/methane drainage systems at <br />the facility. The Division will continue to work with MCC to gather information in order to <br />address the APEN/Permit applicability of VOC emissions from all points at this facility. <br />COMPLIANCE STATUS: IN COMPLIANCE [ ] OUT OF COMPLIANCE [ X ] <br />2012 Air Pollution Inspection <br />0510015-INSP-2012.docz Page 27 of 30 <br />