Åttonde Nordiska Dricksvattenkonferensen - Svenskt Vatten

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Der bør gennemføres et træningsforløb for selskabets teams i ressourceplanlægning, evaluering af indsatser og resultater samt gennemførelse af løbende forbedringer Træningsforløbet kan gennemføres over en tre-måneders periode, hvor teams lærer at benytte teknikkerne på ugemøder Ledergruppen er også et team og bør også deltage i træningsforløb Implementering af et ledelsessystem tager fra 6-12 måneder afhængigt af selskabets kompleksitet og størrelse, tiden er ikke det afgørende Man bør altid afgrænse sit ledelsessystem og ikke forsøge at tage alle typer risici med i en omgang, fx alene fokusere på drikkevandskvalitet, eller miljø. Referencer Balder C.R. m.fl. (2012). Analyse af forsyningssektoren, Rapport kan rekvireres hos NIRAS (crb@niras.dk) EN ISO 9000, 2000, Quality Management Systems ••Fundamentals and vocabulary DS/EN ISO 9001, Kvalitetsledelsessystemer ••Krav, 4. udgave, 2008-12-09 DS/EN ISO 14001, Miljøledelsessystemer ••Krav med anbefalinger om anvendelse, 2. udgave, 2004-11-30 DS/OHSAS 18001, Arbejdsmiljøledelsessystemer ••Kravbeskrivelse, 2. udgave, 2008-01-14 DS/EN ISO 22000, Ledelsessystemer for fødevaresikkerhed ••Krav til virksomheder i fødevarekæden, 1. udgave, 2005-12-22 Robert S. Kaplan og David P. Norton: The Balanced Scorecard ••Measures that Drive Performance, Harvard Business Review , January-February 1992. 22 Session 1: Management
Regional risk- och sårbarhetsanalys för dricksvattenförsörjning Andreas Lindhe*, Olof Bergstedt* / **, Lars Rosén*, Thomas J.R. Pettersson*, Christina Nordensten*** * Department of Civil and Environmental Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, andreas.lindhe@chalmers.se, lars.rosen@chalmers.se, thomas.pettersson@chalmers.se ** Göteborg <strong>Vatten</strong>, Box 123, SE-424 23 Angered, Sweden, olof.bergstedt@vatten.goteborg.se *** The National Food Agency, Box 622, SE-751 56 Uppsala, Sweden, christina.nordensten@slv.se Abstract. Water utilities have to manage a wide range of risks to guarantee the consumers a safe and reliable supply of drinking water. Current risks and emerging risks due to e.g. climate changes call for different measures that may have local but also regional effects. The drinking water supply in one municipality may be dependent on the supply system in one or several other municipalities. For example, municipalities may share the same raw water source and the distribution systems may be interconnected so that water can be transferred between municipalities. It is thus important to assess risks on a regional level. Such assessments facilitate analyses of effects due to e.g. centralisation where several smaller water sources are replaced by one larger water source and/or the distribution systems in adjacent municipalities are interconnected to increase redundancy. The World Health Organization emphasises the use of water safety plans, which implies a risk-based and integrated approach considering the entire supply system, form source to tap. This approach may be further extended to not only consider one supply system but an entire region including several systems in different municipalities. In this paper, an approach and a set of tools are presented that enable regional risk assessment of drinking water supplies. By combining different risk assessment tools, water quality aspects as well as supply interruptions and the access to reserve water supplies are considered. The overall approach and the tools are applied in a case study including thirteen municipalities in the western part of Sweden. The efficiency of the microbial barriers was analysed for each treatment plant and compared to required treatment levels defined by the raw water quality. System reliability related to supply interruptions was analysed using a logic model considering possible failure events and interconnections between supply systems. The case study results show that the approach can be applied to identify and quantify risks affecting smaller as well as larger pats of the analysed region. The risks levels are expressed in the same way for all parts of the region which enables a simple comparison of how potential risk-reduction measures affect different parts of the analysed region. The presented approach and the tools for regional risk assessment facilitate long term planning of water supplies including decisions on risk reduction and contingency planning. Inledning För att uppnå och bibehålla en säker dricksvattenförsörjning krävs ett kontinuerligt arbete med såväl daglig drift som långsiktig planering. Ett viktigt underlag för detta arbete är analyser av de risker och sårbarheter som finns. Förutom att analysera vattenförsörjningen i enskilda kommuner är det viktig att också undersöka beroendet mellan kommunernas system. För att belysa dessa aspekter och visa hur regionala analyser kan ge viktigt beslutsstöd genomförs projektet Regional risk- och sårbarhetsanalys för centraliserad dricksvattenförsörjning i samarbete mellan Livsmedelsverket, Chalmers tekniska högskola och 13 fallstudiekommuner i Västsverige (Ale, Alingsås, Göteborg, Härryda, Kungsbacka, Kungälv, Lerum, Lilla Edet, Mölndal, Partille, Stenungsund, Tjörn och Öckerö). I denna artikel beskrivs ett arbetssätt för regional risk- och sårbarhetsanalys och dess tillämpning exemplifieras. Problembakgrund De risker dricksvattenförsörjningen är utsatt för kan orsaka konsekvenser lokalt i en kommun, men även regionalt i flera kommuner. Den risk ett vattenförsörjningssystem är utsatt för beror bl.a. på yttre förutsättningar, det egna systemet status och funktion samt eventuella beroenden mellan olika kommuner. Beroenden kan t.ex. innebära att ledningsnäten är sammankopplade eller att samma vattentäkt utnyttjas. Session 1: Management 23
Page 1 and 2: Åttonde Nordiska Dricksvattenkonfe
Page 3 and 4: Förord Denna dokumentation innehå
Page 5 and 6: Innehåll Sida CD-numrering Session
Page 7 and 8: Program • Tisdag 19 juni Kan klor
Page 9 and 10: Program • Onsdag 20 juni Lunch 13
Page 11 and 12: Posterutställning Påverkar lättf
Page 13 and 14: Session 1: Management Drick kranvat
Page 15 and 16: För att ytterligare öka intresset
Page 17 and 18: Implementation of Management System
Page 19 and 20: Virksomheder er afhængige af deres
Page 21 and 22: Figur 4: Proces til udarbejdelse af
Page 23: drikkevandskvalitet handler om kemi
Page 27 and 28: Exempel på händelse av regional b
Page 29 and 30: Fallstudieexempel I projektet Regio
Page 31 and 32: Resultaten i Figur 6a visar riskniv
Page 33 and 34: Exempel på och erfarenheter av sve
Page 35 and 36: Genomförande av HACCP och exempel
Page 37 and 38: Erfarenheter Vad är erfarenheterna
Page 39 and 40: gränsvärdena kan de tre övergrip
Page 41 and 42: Modellutvärdering Modellen har i e
Page 43 and 44: Session 2: Säker dricksvattenhante
Page 45 and 46: Projektets formål Fra kontrol til
Page 47 and 48: Tabel 1 Eksempler på vurdering af
Page 49 and 50: Increased SCADA Security at Water F
Page 51 and 52: The SCADA survey This section gives
Page 53 and 54: Absent security policies and proced
Page 55 and 56: Summary This paper has given a brie
Page 57 and 58: Hantering av skyddsvärd informatio
Page 59 and 60: Lagstöd I Råd och riktlinjer för
Page 61 and 62: source is assumed (either Rånåfos
Page 63 and 64: Figure 2 Modelled norovirus concent
Page 65 and 66: least at pH 8), as well as it does
Page 67 and 68: The retention time of water in an i
Page 69 and 70: Samband mellan nederbörd uppström
Page 71 and 72: Figur 2. Antal samtal per dygn till
Page 73 and 74: Reduced risk for waterborne virus i
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authorities, to provide a complete
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Experience from workshops on Good d
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It was found that the GDP approach
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Acknowledgements: In addition to th
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Sjukdomsbilden karaktäriseras av r
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Figur 1. Provtagningspunkter. Råva
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Adenovirus detection in the river G
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A brief description of the UF plant
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Invitrogen). After mounting on slid
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in a chemically enhanced backwash s
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Chemical precipitation in combinati
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To mitigate faecal contamination of
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Results and Discussion The monitori
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Session 3: Dricksvattenkvalitet Öv
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sampling covers only a small fracti
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Table 1a. Average values of water q
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New methods for on-line detection o
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In the sampling unit the sample is
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The full automatic system can eithe
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In the second spike test, we were i
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Figure 12: E-Coli. Third spiking ex
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Effekten av forbedret vannbehandlin
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plasseres i kø for tilbakespyling.
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Figur 2 Resultater fra måling av A
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Figur 5 Midlere mengde muggsopp i p
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Mixed Bed Filtration in Surface Wat
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Materials and Methods Pilot-Scale S
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Table 4 The characteristics of the
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Figure 3 Turbidity before and after
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Dricksvattenkriser berör oss alla!
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Increased insight in microbial proc
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Preliminary results are indicating
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To optimize the interaction with in
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Figure 1 Total organic carbon (mg L
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Freeman, C., C. D. Evans, et al. (2
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supply networks. The numbers of mic
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change which, with altered temperat
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Methodology Pilot plant for ultrafi
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Figure 2 AFM Height obtained on ref
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Operational experience from fluidiz
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Alkali surplus (mol OH / mol Ca) 1,
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Session 4: Distributionssystem För
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Utveckling av ny teknik med Doppler
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Tryckoptimering med flödesstyrd re
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On-line simulation of water distrib
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The most important elements of the
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AQUA Fingerprint - Early warning fo
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Når flere vandtyper sammenblandes
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Påvirker lett flyktige organiske f
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le den potensielle helserisikoen vu
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Identity and biodegradability of or
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This study is probably the first th
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Abstract in Danish. Hvidovre Forsyn
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Figur 2 Oversigt over sektionering
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Figur 4 Målerbrønde klar til etab
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Figur 7 Udvikling I nattimeforbrug
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published a study according to whic
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lining, a curing period, an examina
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Sikker vannforsyning i vannlednings
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2. Trykkfall som skyldes høye vann
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● Forbud mot ventiler kan lukkes
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Hvis det ikke er mulig å få plass
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3.2.4 Vann til brannslokking og sik
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Genomträngning av kemiska markför
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markvattnet samt fördelningskoeffi
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Swedish work about development of m
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The government agencies have an imp
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References Mäkinen, R. (2008) Drin
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Box 47607, 117 94 Stockholm Tel 08
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Åttonde Nordiska Dricksvattenkonferensen - Svenskt Vatten

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