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Directive 055 (Addendum): Interim Requirements for Aboveground Synthetically- Lined Wall Storage Systems, Updates to Liner Requirements, and Optional Diking Requirements for Single-Walled aboveground Storage Tanks

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Release Date: October 10, 2011

Purpose of this Directive

This addendum to Directive 055 describes the minimum requirements for use of aboveground, synthetically-lined wall storage systems in the Alberta upstream petroleum industry, and it updates liner requirements and optional diking requirements for temporary single-walled aboveground storage tanks. The requirements are designed to provide acceptable storage practices that do not compromise public safety or environmental protection.


see also Directive 055: Storage Requirements for the Upstream Petroleum Industry