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Collom Blasting Schedule: Blasting must only occur between the hours as indicated in this <br />table. In the event of adverse weather conditions and/or equipment breakdowns and in <br />consideration of employee and public safety, blasting may occur outside of the times provided: <br />a. Date, time, and circumstances are documented. <br />b. These documents are maintained and made available to the Division for inspection <br />upon request. <br />Hour of Day <br />(Ending of Hour Period) <br />Maximum Allowable Blast (lbs ANFO) <br />Winter <br />(Dec -Feb) <br />Spring <br />(Mar -May) <br />Summer <br />(Jun -Aug) <br />Fall <br />(Sep -Nov) <br />Midnight - 07:00 <br />08:00 <br />09:00 <br />750,000 <br />750,000 <br />750,000 <br />10:00 <br />750,000 <br />750,000 <br />750,000 <br />11:00 <br />750,000 <br />750,000 <br />750,000 <br />12:00 <br />750,000 <br />750,000 <br />750,000 <br />750,000 <br />13:00 <br />750,000 <br />750,000 <br />750,000 <br />750,000 <br />14:00 <br />750,000 <br />750,000 <br />750,000 <br />750,000 <br />15:00 <br />750,000 <br />750,000 <br />750,000 <br />750,000 <br />16:00 <br />750,000 <br />750,000 <br />750,000 <br />750,000 <br />17:00 <br />750,000 <br />750,000 <br />750,000 <br />18:00 <br />750,000 <br />750,000 <br />19:00 <br />750,000 <br />750,000 <br />20:00 <br />750,000 <br />21:00 - Midnight <br />Maximum daily ANFO usage is based on either one larger shot or two smaller shots per day with <br />maximum daily ANFO not to exceed 750,000 lbs (375 tons). <br />During the first twelve (12) months of operation, compliance with both the daily and yearly <br />process limitations must be required. After the first twelve (12) months of operation, <br />compliance with only the yearly limitation must be required. <br />Compliance with the yearly process limits must be determined on a rolling twelve (12) month <br />total. By the end of each month a new twelve-month total is calculated based on the previous <br />twelve months' data. The permit holder must calculate monthly process rates and keep a <br />compliance record on site or at a local field office with site responsibility, for Division review. <br />e® COLORADO <br />Air Pollution Control Division <br />Page 6 of 17 <br />