OAR 837-085-0080: Hazardous Substance Report— Required Survey Information

(1) A covered employer, owner, or operator must calculate the following for each hazardous substance manufactured, generated, used, stored, possessed or disposed of during the reporting period: (a) Average daily amount; (b) Maximum amount onsite at one time; (c) Maximum amount at each storage location reported; (d) Total amount transported to the facility; (e) Total amount transported from the facility. (2) The amounts of hazardous substances shall be measured in the physical state assumed at "Standard Temperature and Pressure" (STP) or when released into the environment, except that liquefied gases under pressure in a liquid state are determined as a liquid reportable in gallons. (3) The amounts of hazardous substances must be reported in the following units: (a) Solids must be reported in units of pounds; (b) Liquids must be reported in units of gallons; (c) Liquefied gases must be reported in units of gallons; (d) Compressed gases that are not liquefied must be reported in units of cubic feet; (e) Radioactive materials must be reported in units of millicuries. (4) For a mixture, the total amount of the substance is reported regardless of the concentration of the hazardous substance in the mixture. (5) The amounts of a hazardous substance with the same chemical composition in separate containers at one facility shall be added together for reporting purposes. (6) Like substances which are exempted from the Hazardous Substance Possession Fee shall be grouped and reported together. Examples of these groups include, but are not limited to: Gasoline, motor oils, asphalt emulsion, and diesels. (7) Water-based paints with the same major components shall be grouped and reported together. Solvent-based paints with the same major components shall be grouped and reported together.