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Immingham Storage Co Ltd - East Terminal
Gasoline Storage Tanks Overfill Safety Instrument System - Functional Safety Assessment Stage 2/3
P & I Design Ltd
DOCUMENT NO: SI277016_RPT
2 Reed Street, Thornaby, UK, TS17 7AF
ISSUE: D DATE: 25.04.13
Tel: + 44 (0)1642 617444
PAGE 20 OF 33
Fax: + 44 (0)1642 616447
www.pidesign.co.uk4.7
Is the Safety Instrument System, constructed and installed in accordance with the safety
requirement specification, any differences having been identified and resolved?
At the FSA stage 3 carried out on 9th February 2012 at Immingham Storage Company East.
As part of the FSA, a site inspection was not carried out to ensure that the installation was still
maintained to the required standard. A separate inspection will be carried out and a separate
report will be appended to this document. (Action 11)
It is confirmed that the installation reflects the SRS and SIL assessment documentation as
discussed above.
The SIS has been designed, installed and validated by P&I Design Ltd. and Immingham
Storage Company East.
Modification Report SI277001_RPT (TANK-SIDE VALVES ADDED TO T561, T564 &
T568) was reviewed during the FSA and it was confirmed that no Stage 5 FSA was required
as there was no detrimental effect on functional safety caused by this modification. The
modification report is to be completed and updated following completion of this modification.
The report will be used as a control document to ensure that all relevant documentation is
updated.