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PRE-TANK REPLACEMENT Site Assessment Work Plan <br />4315 Waterloo Road Stockton, CA. <br />Aegis Project No. 89-047 <br />Page 26 <br />HAZARDOUS PROPERTY INFORMATION <br />Explanations and footnotes <br />Water solubility is expressed in different terms in different <br />references. Many references use the term "insoluble" for materials <br />that will not readily mix with water, such as gasoline. However, most <br />of these materials are water soluble at the part per millon or part <br />per billion level. Gasoline for example, is insoluble in the gross <br />sense, and will be found as a discreet layer on top of the ground <br />water. But certain gasoline constituents, such as benzene, toluene, <br />and xylene will also be found in solution in the ground water at the <br />part per millon or part per billion level. <br />Water solubility expressed as 0.2g means 0.2 grams per 100 <br />grams water at 20°C. <br />Solubility of metals depends on the compound in which they are <br />present. <br />Several chlorinated hydrocarbons exhibit no flash point in <br />conventional sense, but will burn in presence of high energy <br />ignition source or will form explosive mixtures at temperatures <br />above 200°F. <br />Practically non-flammable under standard conditions. <br />Expressed as mm Hg under standard conditions <br />Explosive concentrations of airborne dust can occur in confined <br />areas. <br />Values for Threshold Limit Value - Time Weighted Average <br />(TLV-TWA) are OSHA Permissible Exposure Limits (PEL) except where <br />noted in H. and I. <br />TLV - TWA adopted by the American Conference of Government <br />Industrial Hygienists (ACGIH) which is lower than the OSHA PEL. <br />TLV - TWA recommended by the National Institute for Occupational <br />Safety and Health (NIOSH). A TLV or PEL has not been adopted by <br />the ACGIH or OSHA. <br />A. - Corrosive <br />- Flammable <br />- Toxic <br />- Volatile <br />- Reactive <br />- Radioactive