Wetstock Reconciliation at fuel storage facilities - Carrickfergus ...

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Scope of the Document:This document aims to help the operatorsof Fuel Storage Facilities improve theirwetstock reconciliation on site. It will begiven to site operators by EnvironmentAgency staff during site visits withsupporting guidance and advice. It ishoped that the widespread use of thisdocument will improve the quality ofwetstock reconciliation nationally with thebenefit of protecting the environment.It will be used on retail sites, workplacestorage sites, diesel only sites and siteswhere other chemicals are storedunderground.The document has been written as a‘self-help’ guide and should be implementedby management and staff on site. Wetstockreconciliation is a vital tool on every fuelstorage facility and can provide a robustand cheap method of detecting leaks. Itwill be especially useful on those siteswith no other leak detection method.On sites with existing leak detectionsystems, wetstock reconciliation providesan additional method of leak detection.The document intentionally concentrateson wetstock reconciliation but this is onlyone aspect of wetstock management. Siteoperators must also ensure that theyemploy good practice across other aspectsof site management including the otherareas of wetstock management.Information on many of these aspects canbe found in the APEA/IP Guidance(Reference 1) and the DEFRA Code ofPractice (Reference 2).You may also getadvice from trade associations, PetroleumLicencing Officers or specialist commercialorganisations.It is recognised that there may be changesin the legislative controls of petroleumstorage in the future. However, the basicprinciples outlined in this booklet willcontinue to be relevant.This publication is the R & D TechnicalReport P2-285/TREnvironment Agency Project manager forR & D Project P2-285 wasJoanna Bradley, Environment Officer,North West Region.ISBN 1 844 32040 5©Environment Agency, November 2002.Reservation of Rights statementAll rights reserved. No parts of thisdocument may be reproduced, stored in aretrieval system, or transmitted, in anyform or by any means, electronic,mechanical, photocopying, recording orotherwise without the prior permission ofthe Environment Agency. This excludes thetear off sheet at the back of Appendix 2which may be removed and copied.Dissemination StatusInternal: Released to regions.External: Restricted – one copy only perapplicant. Multiple copies only byagreement with the Project Manager.1
Contents1. Introduction 31a – Protection of the environment 31b –Compliance with your Petroleum Licence 32. Good practice for operating fuel storage facilities 43. Wetstock reconciliation – The theory 54. The benefits of recording cumulative data 65. Causes of wetstock variance 85a – General 85b –Deliveries 95c – Sales 95d –Tank stock readings 106. What is your normal operating pattern? 127. What to do if you deviate from your normal operating pattern 138. Advanced leak detection 149. Summary 1410.References 1411.Glossary of terms 15Appendix 1 16Appendix 2 18Published by:Environment AgencyRio HouseWaterside DriveAztec WestAlmondsburyBristol BS32 4UDTel:01454 624400Fax:01454 624409www.environment-agency.gov.ukwww.environment-agency.wales.gov.ukFurther copies of this booklet can beobtained from your local Agencyoffice. Contact details can be found atthe back of this document.Authors:Jo Bradley(Environment Agency)Bob Conlin and Marieke Feast(Fairbanks Environmental Limited)David Scott(Principal Petroleum Officer,Lancashire County Council)Contributors:Association for Petroleum and ExplosivesAdministration (APEA)BP Oil UK LtdChevron TexacoEcotech (UST) LtdGilbarco Veeder-RootGreater Manchester County Fire ServiceInstitute of PetroleumLondon Fire BrigadeMercury Petroleum Systems LimitedMerseyside Fire BrigadeScottish Environment Protection AgencyShell UK Oil Products LtdTotalFinaElf UK LtdWest Yorkshire Fire Service2
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