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Steam used for heating of the lubricant at various steps is generated in a residential-size package boiler. Blending oil for firing on-site equipment is contained in a single blending tank (C-9) with hard-piped fi.11 connections from the finished oil storage tanks and from a diesel fuel oil tank (C-10) . The diesel fuel oil tank is exempt from SJAPCD Authority to Construct Permit requirements by Rule 202h.5, but will be constructed in accordance with applicable codes. 2.2.2 Used Lubricant Characteristics All lubricants basically consist of mixtures of hydrocarbon groups of paraffin chains, aromatics and naphthene, with various derivatives of sulfur, nitrogen and oxygen. Used lubricants such as crankcase drain oil, hydraulic oil, and industrial lubricants typically contain low concentrations of contaminants such as metals, chlorides, and sulfur. Typically, the concentrations of most of these contaminants In the used lubricant will be well below the state's standards of purity for recycled oil. To ensure that the used lubricants delivered to the facility can be safely processed by the facility, each incoming load will be screened as follows: 1.Under California law, though not under Federal law, used lubricating oil is classified as a hazardous waste and must be manifested. The manifest of each incoming load will be checked to determine the source and identity of the load. No other materials classified as hazardous materials or hazardous waste are expected to be on-site. 2. Each incoming load will be sampled and analyzed to ensure that the the contaminants in the used lubricant can be properly stored and processed at the facility prior to acceptance. The primary purpose of the laboratory, discussed in Section 2.3.2, is to perform the analysis on the incoming used lubricant as well as the recycled lubricants. 10