Water Safety Plan for Small Community Water Supply Schemes
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DESCRIPTIONWater Safety Plan for Small Community Water Supply Schemes. Dr S K Weragoda Chief Engineer Greater Dambulla WSP 01-04-2014. Contents. Introduction History of application in Sri Lanka Importance of applying WSPs Basic concepts in application of WSPs. Introduction. - PowerPoint PPT Presentation
Water Safety Plan for Small Community Water Supply SchemesDr S K WeragodaChief EngineerGreater Dambulla WSP
01-04-20141ContentsIntroductionHistory of application in Sri LankaImportance of applying WSPsBasic concepts in application of WSPs2IntroductionWater Quality Surveillance or water quality testing is tedious and resource wasting approach in ensuring water quality as testing of sample is key factor.Application of ISO 9001 in water sector does not consider any impact on water quality before the intake.Hence, Water Safety Plan (WSP) has become the principal tool to assure safe drinking water (3rd and 4th Edition of WHOs DWA guidelines).
3WHO Water Safety FrameworkHealth- based targetsWater Safety Plans
Management, Documentation & CommunicationSurveillancePublic health context & health outcome4From Theory to Best Practice2003HACCP principles applied (Iceland, Australia)2004- 2006Implementation of WSPs (Uganda, Portugal, Brazil)2010 onwardsMainstreamed by utilities, regulators, banks, NGOs2004WSPs included in WHO GDWQ & IWA Bonn Charter2007WSPs part of E&W regulations2009WSP auditing (NZ, Australia, UK)5History of Application of WSPs in Sri LankaDecember 2004 tsunami highlighted the need of a proper water surveillance system.Hepatitis A in 2007 in Gampola has shown the importance of having a proper water quality management systemUnderstanding the need;First training on WSP application in Colombo in Year 2010APN funded project between Sri Lanka and Singapore in Year 2011 2012WHO funded training program in Kandy in Year 2013Commenced to develop six WSPs
6How much water in the Human body?
7Adequate Water Helps PreventHeadachesConstipationKidney stonesBladder cancer Exhaustion and heat strokeHeart attacks and strokes ..
88Research (CDC Web site) shows that adequate water helps prevent many serious health problems (see list above).If you have a cold or lung congestion, extra water helps relieve symptoms and helps you recover sooner.For best health, be sure to drink plenty of water every day.If Quality of the water is ???..
Physical Biological Chemical9 From catchment to end user
From distribution to end user
WSP application in Small Community WSSsWhat are small community water supply schemes? SCWSSs are defined based on their population size, treatment capacity, treatment technology, etc.What is a water safety plan? WSP approach is the assessment, prioritization and continuous management of risk to water safety from catchment to consumer.Why should apply WSPs to SCWSSs? Adopting an incremental improvement plan means that improvements are made over time, moving gradually towards meeting community, local or national water quality targets or objectives.
13Water Safety Plan Continuous Improvement Cycle(For Small Scale WTP)Task 1 Engage community and assemble a water safety plan teamTask 2 Describe the community water supplyTask 3 Identify and assess hazards, hazardous events, risk and existing control measuresTask 4 Develop and implement an incremental improvement planTask 5 Monitor control measures and verify the effectiveness of the WSPTask 6 Document, review and improve all aspects of WSP implementation14WSP EhiliyagodaWBMLI Weerasekara,Senior Chemist,Kegalle.15WSP committee (Task 01)Regional LevelAGM-CoordinatorManager (O&M)-MemberRSC Chemist-Team LeaderCE(P&D)-MemberRegional/Senior Chemist-MemberEngineer(O&M)-MemberMechanical Engineer-MemberSociologist-Member OIC-MemberDis. Envi. Committee-MemberCatchment Dwellers-Member
16WSP committee con.2. Top LevelGM -CoordinatorCOL/AGM(WQ)-Team LeaderAdd. GMM-MemberDGMM-MemberAGM(Sociology)-MemberRSC Chemists-MemberDirector (Health)-Member 17WSP CommitteeEngaging the community and assembling a WSP team are an essential means to:identify the communitys aspirations and needs in respect of their water supply, through an inclusive process that considers gender as well as elderly and vulnerable community members;balance water supply needs against competing community-level priorities, such as housing and education;tap into local knowledge and experience in the identification, assessment and management of risks;18WSP CommitteeEngaging the community and assembling a WSP team are an essential means to:identify resources within the community that can be called upon when needed;initiate a dialogue between the community and other stakeholders (government, NGOs, water service delivery and public health agencies) on the benefits and requirements of a well-functioning water supply and the joint preparation of a WSP;raise awareness of the role that community members can play in protecting and improving their water supply.19Catchment
2021 WSP Module 02 (Task 02)
Powerpoint template demo2 April 2014Yarra Valley Water Ltd2122Hazard (contaminant)A biological, chemical or physical property which may cause a product to be unsafe for consumption Biological - bacteria, viruses, protozoa, algae Chemical corrosion, pesticides, disinfection by productsPhysical pH, temperature, discolourationRadiological Hazardous Event (cause)A practice or outcome that causes the hazard to become a problem by its introduction into or proliferation in the water productWSP Module 3 (Task 03)Hazard and Hazardous Event Powerpoint template demo2 April 2014Yarra Valley Water Ltd22Risk MatrixSeverity/ ConsequencesNo/ Minor impactModerate ImpactMajor ImpactLikelihoodLikelyMediumHighHighPossibleLowMediumHighUnlikelyLowLowMediumHigh : High priority and requires urgent improvement in control measuresMedium : Medium or long term priority and requires improvement in control measures in the medium and long termLow : Not a priority 23Benefits of a WSPAvoid incidents which impact public healthImproved compliance with regulatory and other requirementsImproved consumer trustImproved confidence of key stakeholdersCost effectiveness and investment planningImproved staff commitmentCompetition with peers24
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