The typical disposal concept for low and intermediate-level waste is near-surface disposal.

specific designs for storage rooms or vessels (including retention walls and ventilation).

On 28 February 2012 the Commission adopted its first such opinion[12], reviewing the draft permit issued by the Netherlands for intended permanent storage of up to 8.1 Mt CO2 in a storage reservoir on the Dutch continental shelf.

The cushion gas is the total volume of gas required as a permanent inventory to maintain adequate underground storage reservoir pressures and deliverability rates throughout the output cycle.

According to a document I have from Environment Canada, the voluntary approach has not achieved the desired environmental results and there are still leaks and spills from underground and above ground storage tank systems.

Progress on federal contaminated sites will continue to be ensured through existing government policies (code of environmental stewardship, greening of government, Treasury Board secretariat increased ministerial authority and accountability policy (1986), federal government guidelines (EC, TBS)) and through interdepartmental committees such as the contaminated sites management working group (c) Although the department supported the development of an inventory in 1990, the Canadian Council of Ministers of the Environment (CCME) members were unable to reach an agreement and it was decided that individual members would be responsible for r ...[+++]eporting on the number of sites within their jurisdiction.