BS 8551-2015 Provision and management of temporary water supplies and distribution networks (not including provisions for statutory emergencies) Code of practice《临时用水供应和分销网的提供和管理(不.pdf

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1、BSI Standards PublicationBS 8551:2015Provision and managementof temporary water suppliesand distribution networks(not including provisions forstatutory emergencies) Code of practicePublishing and copyright informationThe BSI copyright notice displayed in this document indicates when the documentwas

2、last issued. The British Standards Institution 2015Published by BSI Standards Limited 2015ISBN 978 0 580 86307 3ICS 13.060.20The following BSI references relate to the work on this document:Committee reference EH/3Draft for comment 15/30299654 DCPublication historyFirst published December 2011Second

3、 (current) edition September 2015Amendments issued since publicationDate Text affectedBS 8551:2015 BRITISH STANDARDContentsForeword iii0 Introduction 11 Scope 22 Normative references 33 Terms and definitions 34 Water safety planning and risk management 65 Medical assessment and water quality hygiene

4、 awareness training 116 Quality assurance documentation 117 Wholesome supply suitability 128 Installation of temporary distribution systems 159 Vessels for storage and transport of water 1910 Disinfection 2711 Monitoring and sampling of temporary water supplies 3412 Bottled water for temporary suppl

5、y 39AnnexesAnnex A (normative) Staff water quality awareness training 42Annex B (informative) Flow demands 43Annex C (informative) Chloraminated water 43Annex D (informative) Information required to manage the provision of atemporary water supply 44Annex E (informative) Guidelines for the preparatio

6、n and use of chlorine andthe use of chlorine disinfection solutions 45Annex F (informative) Example drinking water tanker or wheeled bowser driverchecklist 49Annex G (informative) Chlorine concentration, contact period for tankdisinfection and minimum residual free chlorine 50Bibliography 51List of

7、figuresFigure 1 Preparing a water safety plan 8Figure2Temporary supplies for exhibitions, shows and events 17Figure E.1 Correct type of containers showing labelling required 46Figure E.2 Example of preparation of chlorine disinfection solution 47Figure E.3 Example of the correct use of chlorine disi

8、nfection solution 47Figure F.1 Example drinking water tanker or wheeled bowser driverchecklist 49Figure G.1 Initial free chlorine concentration and contact period for tankdisinfection (see Table 4, columns 1 and 2) 50Figure G.2 Minimum residual free chlorine after contact period (see Table 4,column

9、3) 50List of tablesTable 1 Possible hazards 9Table 2A Operational life for vessels between cleaning operations: PreparedWQ M DPE 24Table 2B Operational life for vessels between cleaning operations: Preparedpolyurethane (pillow tank) 24Table 2C Operational life for vessels between cleaning operations

10、: Preparedgrade 316 stainless steel 24Table 3 Look-up table for desired free chlorine, from NaOCl or Ca(OCl)229Table 4 Chlorine contact period 30BRITISH STANDARD BS 8551:2015 The British Standards Institution 2015 iTable5Weight of granular sodium thiosulfate (g) required to neutralize freechlorine c

11、oncentrations 33Table 6 Drinking water quality standards 37Table 7 Prescribed concentrations and values 39Table B.1 Flow demands 43Table B.2 Choice of tank size relative to population served 43Summary of pagesThis document comprises a front cover, an inside front cover, pages i to vi,pages 1 to 54,

12、an inside back cover and a back cover.BRITISH STANDARDBS 8551:2015ii The British Standards Institution 2015ForewordPublishing informationThis British Standard is published by BSI and came into effecton 30 September 2015. It was prepared by BSI Panel EH/3/-/1, Panel for BS 8551,under the authority of

13、 Technical Committee EH/3, Water quality. A list oforganizations represented on this committee can be obtained on request to itssecretary.SupersessionBS 8551:2015 supersedes BS 8551:2011, which is withdrawn.Information about this documentThis is a full revision of the standard to keep it up to date.

14、This document is intended for application when there is a temporary loss of apiped water supply or where there is a limited or no piped water supplyavailable that is not the responsibility of a water undertaker or licensed watersupplier (e.g. burst of private supply pipe). It is also intended to be

15、applicable tothe provision of temporary water distribution systems for public events orconstruction sites.Use of this documentIt has been assumed in the preparation of this British Standard that theexecution of its provisions will be entrusted to appropriately qualified andexperienced people, for wh

16、ose use it has been produced.All personnel involved in the deployment and use of tankers, static tanks andbowsers (for drinking water purposes) are expected to hold the National WaterHygiene Card(see https:/www.eusr.co.uk/eusr/the-eusr-card/the-national-water-hygiene-card)viewed: 14 September 2015.T

17、est laboratory accreditation. Users of this British Standard are advised toconsider the desirability of selecting test laboratories that are accredited toBS EN ISO/IEC 17025 by a national or international accreditation body.A list of accredited laboratories is provided at www.dwi.gov.ukviewed: 14 Se

18、ptember 2015.WARNING. This British Standard calls for the use of substances and/or proceduresthat can be injurious to health if adequate precautions are not taken. It refersonly to technical suitability and does not absolve the user from legal obligationsrelating to health and safety at any stage.Pr

19、esentational conventionsThe provisions of this standard are presented in roman (i.e. upright) type. Itsrecommendations are expressed in sentences in which the principal auxiliaryverb is “should”.Commentary, explanation and general informative material is presented insmaller italic type, and does not

20、 constitute a normative element.The word “should” is used to express recommendations of this standard. Theword “may” is used in the text to express permissibility, e.g. as an alternative tothe primary recommendation of the Clause. The word “can” is used to expresspossibility, e.g. a consequence of a

21、n action or an event.BRITISH STANDARD BS 8551:2015 The British Standards Institution 2015 iiiNotes and commentaries are provided throughout the text of this standard.Notes give references and additional information that are important but do notform part of the recommendations. Commentaries give back

22、ground information.Contractual and legal considerationsThis publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legalobligations.In particular, attention is

23、 drawn to the following statutory regulations. Water Industry Act 1991 1; The Water and Sewerage Services (Northern Ireland) Order 2006, asamended 2; The Water (Scotland) Act 1980, as amended 3; Council Directive 98/83/EC of 3 November 1998 on the quality of waterintended for human consumption 4; Th

24、e “Water Quality Regulations”, which set out provisions for the quality ofdrinking water provided by a public water supplier (water undertaker): The Water Supply (Water Quality) Regulations 2000, as amended, inEngland 5; The Water Supply (Water Quality) Regulations 2010, as amended, inWales 6; The W

25、ater Supply (Water Quality) Regulations (Northern Ireland) 2007,as amended, in Northern Ireland 7; The Public Supply Water Supplies (Scotland) Regulations 2014, inScotland 8; The “Private Water Supplies Regulations”, which set out provisions for thequality of water from a private supply: The Private

26、 Water Supplies Regulations 2009, as amended, inEngland 9; The Private Water Supplies (Wales) Regulations 2010, as amended, inWales 10; The Private Water Supplies (Northern Ireland) Regulations 2009, asamended, in Northern Ireland 11; The Private Water Supplies (Scotland) Regulations 2006, in Scotla

27、nd 12; The “Water Fittings Regulations”, which set out provisions for plumbingsystems in premises to which a supply of public mains water has beenprovided: The Water Supply (Water Fittings) Regulations 1999, in England andWales 13; The Water Supply (Water Fittings) Regulations (Northern Ireland) 200

28、9,in Northern Ireland 14; The Water Supply (Water Fittings) (Scotland) Byelaws 2014, inScotland 15; The Natural Mineral Water, Spring Water and Bottled Drinking Water(England) Regulations 2007, as amended 16; The Natural Mineral Water, Spring Water and Bottled Drinking Water(Wales) Regulations 2007,

29、 as amended 17;BRITISH STANDARDBS 8551:2015iv The British Standards Institution 2015 The Natural Mineral Water, Spring Water and Bottled Drinking Water(Northern Ireland) Regulations 2007, as amended 18; The Natural Mineral Water, Spring Water and Bottled Drinking Water(Scotland) Regulations 2007, as

30、 amended 19; The Workplace (Health, Safety and Welfare) Regulations 1992 20; The Control of Substances Hazardous to HealthRegulations 2002 (COSHH) 21; The Control of Substances Hazardous to Health Regulations (NorthernIreland) 2003 22; The Health and Safety at Work etc. Act 1974, as amended 23.NOTE

31、Bottled water held in storage for emergency uses has to be suitable forsupply under the same Regulations 5, 6, 7 and 8 as that which is suppliedthough the distribution network.BRITISH STANDARD BS 8551:2015 The British Standards Institution 2015 vBRITISH STANDARDBS 8551:2015This page deliberately lef

32、t blankvi The British Standards Institution 20150 IntroductionThe provision of safe, clean drinking water is essential to support public healthand well-being.Where there is a need to provide a temporary supply of water for domesticpurposes1)(i.e. drinking, washing, cooking, central heating and sanit

33、arypurposes) this British Standard provides guidance which, if followed carefully,can help ensure the wholesomeness2)of the temporary water supply.Temporary water supplies can be provided by various means, including: water delivered in bottles, containers, tankers, bowsers, static tanks; or piped su

34、pplies from a public main; or water delivered as above, but derived from a private source, such asboreholes, springs, wells and river abstraction schemes.Water supplied by a licensed water undertaker needs to conform to the WaterQuality Regulations 5, 6, 7 and 8. Any water fitting supplied with wate

35、r bya water undertaker has to conform to the Water FittingsRegulations 13, 14 and 15. Water supplied by an alternative source, such asa private water supply, needs to conform to the Private Water SupplyRegulations 9, 10, 11 and 12. Water supplied via a stand-alone vessel ortanker is not covered by t

36、hese Regulations. However, it is necessary that allinstallations, regardless of source, satisfy the provisions of the Water FittingsRegulations 13, 14 and 15.This standard acknowledges the duty to ensure that temporary supplies arewholesome.This standard gives guidance on the provision of an appropr

37、iate managementsystem(s) for temporary water supplies capable (through documentation) ofdemonstrating to the water supplier and/or the local authority that all necessaryprocedural steps have been carried out.Management systems assist in ensuring wholesomeness of the water suppliedand demonstrate due

38、 diligence by the relevant people (for private supplies) orthe water undertaker (for public supplies) in relation to Water and Health andSafety Law3)as it applies to temporary water supplies.Guidance is also given on the preparation and use of temporary water transfervessels which can be pre-prepare

39、d and stored ready for collection anddeployment, either for stand-alone use or for connection to a temporarynetwork.In addition to the temporary supply of wholesome water, this standard coversmethods of extraction of water from a wholesome supply and its subsequenttransfer to the point of use.1)As d

40、efined in the Water Industry Act 1991, as amended (for England and Wales) 1,and corresponding Acts in Scotland and Northern Ireland 2 and 3.2)As defined in the Water Quality Regulations 5, 6, 7 and 8 or the Private WaterSupplies Regulations 9, 10, 11 and 12 depending on where the water is sourced.3)

41、Those responsible for the provision of temporary supplies are subject to therequirements of the Health and Safety at Work etc. Act 1974 23.BRITISH STANDARD BS 8551:2015 The British Standards Institution 2015 11 ScopeThis British Standard gives recommendations and guidance for the provision andmanage

42、ment of temporary water supplies and distribution networks to ensurethe water supplied for domestic purposes is wholesome. It is applicable tosituations when a permanent supply is insufficient, not available or not required,for example, at building sites and outdoor public events.NOTE The drinking w

43、ater regulators, water undertakers and local authorities havein place collective arrangements for dealing with operational events, incidents andemergencies in relation to both public and private water supplies, and they oughtalways to be informed and/or consulted before a temporary water supplyarran

44、gement is put in place.The standard gives recommendations and guidance on procedures anddocumentation for:a) risk assessment and management;b) supplying, maintaining and cleaning vessels used to collect and transportwholesome water or function as temporary supply points;c) storage and quality contro

45、l of bottled water stocks intended for temporarysupply;d) connecting to a permanent distribution network for extraction purposes,avoiding contamination risks;e) installing temporary water storage vessels and temporary pipework fordistribution networks serving temporary water draw-off points whilstav

46、oiding contamination risks; andf) monitoring and sampling.This British Standard is intended to provide guidance on good practice relatedto anticipated temporary water supplies and installation of temporarydistribution networks, but its principles are applicable to contingencyarrangements for water s

47、upply incidents and emergencies.The British Standard also gives guidance on water supply hygiene andmanagement practices which can involve staff training and/or operationalprocedures.The British Standard relates to the supply of water that has already been treatedto make it safe for drinking, and it

48、s provisions are intended to preventcontamination.The British Standard is not applicable to:1) the use and maintenance of large-bottle water dispensers, for example, thebottles often used in office water coolers/dispensers (although themanagement of stocks of water held for use in such devices is co

49、vered);2) the dispensing of the water supplied from vessels which are managedoutside a predefined management regime, such as:i) personalized utensils (for example, sports water bottles or personalfilters);ii) personal portable containers designed for carrying water; andiii) vending machines;3) the supply of water for the flushing of toilets/urinals only; and4) the extraction and treatment of raw w