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Colorado Department of Public Health and Environment <br /> Air Pollution Control Division <br /> A&S Construction Co. <br /> Permit No. 01 P00032 <br /> Issuance 3 <br /> Final Approval March 12, 2003 Modification to decrease throughput from 300,000 to <br /> 250,000 tpy. <br /> Issuance 3 This Issuance Adding propane as the primary fuel source while <br /> keeping waste oil as optional backup fuel. Updating <br /> emission factors and emission limits. <br /> Notes to permit holder: <br /> 1) The production or raw material processing limits and emission limits contained in this permit are <br /> based on the production/processing rates requested in the permit application. These limits may <br /> be revised upon request of the permittee providing there is no exceedence of any specific <br /> emission control regulation or any ambient air quality standard. A revised air pollutant emission <br /> notice(APEN) and application form must be submitted with a request for a permit revision. <br /> 2) This source is subject to the Common Provisions Regulation Part II, Subpart E, Affirmative <br /> Defense Provision for Excess Emissions During Malfunctions. The permittee shall notify the <br /> Division of any malfunction condition which causes a violation of any emission limit or limits <br /> stated in this permit as soon as possible, but no later than noon of the next working day, followed <br /> by written notice to the Division addressing all of the criteria set forth in Part II.E.1. of the <br /> Common Provisions Regulation. See: https://www.colorado.gov/pacific/cdphe/aqcc-regs. <br /> 3) In accordance with C.R.S. 25-7-114.1, each Air Pollutant Emission Notice (APEN) associated <br /> with this permit is valid for a term of five years from the date it was received by the Division. A <br /> revised APEN shall be submitted no later than 30 days before the five-year term expires. Please <br /> refer to the most recent annual fee invoice to determine the APEN expiration date for each <br /> emissions point associated with this permit. For any questions regarding a specific expiration date <br /> call the Division at(303)-692-3150. <br /> 4) The following emissions of non-criteria reportable air pollutants are estimated based upon the <br /> process limits as indicated in this permit. This information is listed to inform the operator of the <br /> Division's analysis of the specific compounds emitted if the source(s) operate at the permitted <br /> limitations. <br /> Uncontrolled Are the Controlled <br /> AIRS Emission Rate emissions Emission Rate <br /> Point Pollutant CAS# (lb/yr) reportable? (Ib/yr) <br /> 001 Formaldehyde 50000 775 YES 775 <br /> 5) The emission levels contained in this permit are based on the following emission factors: <br /> Drum Mixer: <br /> Uncontrolled Emission <br /> Factors Emission Control <br /> Pollutant (lb/ton of asphalt) Factor Source Control Device Efficiency <br /> PM 0.0241 (controlled) Division Derived 99.7% <br /> PM10 0.0056(controlled) Division Derived Fabric filter 99.7% <br /> PM2.5 0.0013(controlled) Division Derived baghouse 99.7% <br /> NOx 0.0550 AP-42 0% <br /> CO 0.4000 AP-42 None 0% <br /> VOC 0.0320 AP-42 0% <br /> AIRS ID: 777/1674/001 Page 9 of 12 <br />