This 1992 document from Imperial Oil Ltd, the Canadian subsidiary of Exxon, is an “Environmental Reference Manual” to guide “environmental risk reduction strategies, options and methods.” This document is part of the ClimateFiles Imperial Oil document set, gleaned by DeSmog researchers from the Glenbow Imperial Oil Archive Collection.

The document primarily focuses on challenges related to “underground piping,” “unprotected underground steel tanks,” “terminal effluent quality,” and “tank lot spill prevention.” The issue of Ozone depleting materials is mentioned briefly, noting that such materials “should not be used except when there are no practical alternatives.”