Ordinance No. 20222 - Laserfiche WebLink

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'! 'I" Step 2. Set up equations with input streams equal to output streams. Considering the quantities of Chemical X in all streams that enter or leave the process, the amount of Chemical X that is lost through the process vent on an annual basis can be estimated as follows: ! If Input = Amount purchased (8,000 pounds) . if Output = Product (24,000 lbs x 25%) + waste (10,000 lbs x 15%) + process vent loss Input = Output 8,000 Ibs Chemical X = 6,000 lbs + 1,500 lbs + process vent loss Process vent loss = 8,000 - 6,000 - 1,500 = 500 lbs Chemical X per year 3. Method E: Emission Factors published in the EP A document AP-42, or those already approved by LRAP A, or those developed specifically for your facility, are all acceptable means of estimation of air emissions, unless monitoring data are available. AP-42, "Compilation of Air Pollutant Emission Factors," 5th edition, is available at: (1) LRAP A office, (2) University of Oregon library, or (3) on the Internet at http://www .epa.gov /ttn/ chief/ap42etc.html 4. Method 0: When no data exists and document-driven estimation methods are not avail- able, a business may use its best engineering judgment in calculating reportable quanti- ties. When engineering calculations are appropriate, businesses are encouraged to consult EP A 560/4-88-002, "Estimating Releases and Waste Treatment Efficiencies for the Toxic Chemical Release Inventory Form," Dec. 1987. This document is available from Na- tional Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161. The NTIS Accession Number is PB 88-210380. It is also available for viewing in the Fire Marshal's Office. G. IJse of MateriaJ Safety Data Sheet (J\'ISDS) Information: Information taken directly from a MSDS is considered accurate for the pU11'>oses of reporting, unless the reporting company has more accurate information. If the MSDS of a purchased material identifies a contaminant as belonging to a SARA 313 Chemical Category and that material represents less than 1 % of the total weight of the purchased material, reporting of that contaminant is not required. Chemical catego- ries are defined in SARA 313 (EPCRA). These are groups of materials such as "copper compounds" or certain "glycol ethers" that are not definable by a discrete CAS number. These are listed in Appendices C-1 and C-2. lfno CAS number is listed for a contaminant on an MSDS, then that contaminant is not reportable. 17