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5.2.3 Maintenance/long term behaviour of engineering solutions

Engineered and physical controls will need periodic inspection and maintenance to ensure continued performance. Engineered control systems have finite design lives; as a result, periodic monitoring of engineered controls should be necessary to alert for breakdowns of controls and hazardous substance releases. Maintenance of engineered controls should include routine repairs and replacement; these should be documented in operation and maintenance plans for individual engineered controls or for the site as a whole. Similarly, physical controls may require periodic inspection and maintenance in the form of replacing signs, mending fences, etc.
Maintenance protocols should be specified in documents and the effectiveness of maintenance activities may be a major part of regular remedy reviews.