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Simon Storage Ltd – Immingham East Terminal
Gasoline Import – Layers of Protection Analysis
P & I Design Ltd
DOCUMENT NO: SI057001_RPT
2 Reed Street, Thornaby, UK, TS17 7AF
ISSUE: G DATE: 29.06.12
Tel: + 44 (0)1642 617444
PAGE 30 OF 34
Fax: + 44 (0)1642 616447
www.pidesign.co.uk5.3.4 Mitigation Layer – All Scenarios.
1. Failure of Detection of overflow and action – Mitigation Layer
A large release may not be detected and even if detected may not be stopped. A manual
operation to shut down the transfer is possible but an operator may be required to approach
close to the vapour cloud. The area ESD may or may not shut-down the transfer. The most
realistic method of stopping the release is to stop the import of gasoline by shutting the ship
down.
Site operations consider that, in this case, the possibility of preventing a large release is low
thus no credit for this layer has been taken.
Probability of not detecting and stopping the release.
1.0