1. Water Safety Plan for Small Community Water Supply Schemes
Dr S K Weragoda
Chief Engineer
Greater Dambulla WSP

2. Contents Introduction History of application in Sri Lanka
Importance of applying WSPs
Basic concepts in application of WSPs

3. Introduction
Water 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 WHO’s DWA guidelines).

4. WHO Water Safety Framework
Health- based targets
Public health context & health outcome
Water Safety Plans
System Assessment
Monitoring
Management, Documentation & Communication
Surveillance

5. From Theory to Best Practice
2003
HACCP principles applied (Iceland, Australia)
Implementation of WSPs (Uganda, Portugal, Brazil)
2010 onwards
Mainstreamed by utilities, regulators, banks, NGOs
2004
WSPs included in WHO GDWQ & IWA Bonn Charter
2007
WSPs part of E&W regulations
2009
WSP auditing (NZ, Australia, UK)

6. History of Application of WSPs in Sri Lanka
December 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 system
Understanding the need;
First training on WSP application in Colombo in Year 2010
APN funded project between Sri Lanka and Singapore in Year 2011 – 2012
WHO funded training program in Kandy in Year 2013
Commenced to develop six WSPs

7. How much water in the Human body?

8. Adequate Water Helps Prevent…
Headaches
Constipation
Kidney stones
Bladder cancer
Exhaustion and heat stroke
Heart attacks and strokes
………..
Research (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.

9. If
Quality of the water is ???…..
Physical
Biological
Chemical

10. From catchment to end user

12. From distribution to end user

13. WSP application in Small Community WSSs
What 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.

14. Water Safety Plan Continuous Improvement Cycle (For Small Scale WTP)
Task 1 – Engage community and assemble a water safety plan team
Task 6 – Document, review and improve all aspects of WSP implementation
Task 2 – Describe the community water supply
Water Safety Plan Continuous Improvement Cycle (For Small Scale WTP)
Task 5 – Monitor control measures and verify the effectiveness of the WSP
Task 3 – Identify and assess hazards, hazardous events, risk and existing control measures
Task 4 – Develop and implement an incremental improvement plan

15. WBMLI Weerasekara, Senior Chemist, Kegalle.
WSP Ehiliyagoda
WBMLI Weerasekara,
Senior Chemist,
Kegalle.

16. WSP committee (Task 01) Regional Level AGM - Coordinator
Manager (O&M) - Member
RSC Chemist - Team Leader
CE(P&D) - Member
Regional/Senior Chemist - Member
Engineer(O&M) - Member
Mechanical Engineer - Member
Sociologist - Member
OIC - Member
Dis. Envi. Committee - Member
Catchment Dwellers - Member

17. WSP committee con. 2. Top Level GM - Coordinator
COL/AGM(WQ) - Team Leader
Add. GMM - Member
DGMM - Member
AGM(Sociology) - Member
RSC Chemists - Member
Director (Health) - Member

18. WSP Committee
Engaging the community and assembling a WSP team are an essential means to:
identify the community’s 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;

19. WSP Committee
Engaging 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.

20. Catchment

21. Powerpoint template demo
20 April 2017
WSP Module 02 (Task 02)
Yarra Valley Water Ltd

22. Powerpoint template demo
20 April 2017
WSP Module 3 (Task 03)
Hazard and Hazardous Event
Hazard (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 products
Physical – pH, temperature, discolouration
Radiological
Hazardous Event (cause)
A practice or outcome that causes the hazard to become a problem by its introduction into or proliferation in the water product
Yarra Valley Water Ltd

23. Severity/ Consequences
Risk Matrix
Severity/ Consequences
No/ Minor impact
Moderate Impact
Major Impact
Likelihood
Likely
Medium
High
Possible
Low
Unlikely
High : High priority and requires urgent improvement in control measures
Medium : Medium or long term priority and requires improvement in control measures in the medium and long term
Low : Not a priority

24. Benefits of a WSP Avoid incidents which impact public health
Improved compliance with regulatory and other requirements
Improved consumer trust
Improved confidence of key stakeholders
Cost effectiveness and investment planning
Improved staff commitment
Competition with peers

25. Global Water Crisis A child dies every 15 seconds from a
water-borne disease.
Slide Three – Emotion-Global Water Crisis
One child dies every 15 seconds from water-related disease, that’s why it’s so important to use clean water and sanitation programs that work.
Contaminated water is the leading cause of death for children under 5.
Lack of clean water contributes to disease, poverty and conflict. But, the problem is not too big to solve. WaterPartners projects are effective and sustainable.
Diarrhea takes the lives of 4,900 children every day. 25

26. But whole world worries about a single plane crash?

27. Thank You