Office of Air Quality, Permitting & Enforcement Division Mechanical Section Policy Memorandum þÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ Date: March 24, 1994 No.: 12 From: Kevin Ellis Approved by: Gary Wallin, P.E. Subject: Waste Blend Fuel Oil use in Std. Ex. 99 þÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ Policy: Waste blend fuel oil shall not be approved for use in Standard Exemption No. 99. By definition, standard exemptions will not make a significant contribution of air contaminants to the atmosphere. The use of waste blend fuel oil has the potential to make such a contribution, therefore requiring a permit. Background: CSA Materials operates two standard exempted asphalt concrete plants that were previously authorized to burn a 'refined' waste blend fuel. CSA Materials wished to temporarily operate an additional asphalt concrete plant under Standard Exemption No. 99 at this existing site, utilizing the current fuel tanks, until a permit was obtained for the plant at a grass roots site. Necessary Action: None cc: All Mechanical Section