water services national training group best practice in the management of drinking water cait...
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Water Services National Training Group
Best Practice in the Management of Drinking
WaterCait Gleeson
Senior Executive Scientist
Limerick County Council
Drinking Water Quality
Old System New System
Moving from a system that worked to one that is a high-tech fully controlled system delivering a high quality product.
Drinking Water Quality
We are developing control so that when a ‘orange light goes off’ we can respond before the problem manifests itself in the final product.
Our New World
European Communities (Drinking Water )
(No 2) Regulations 2007 Water Quality Standards and new quality limits
with staggered deadlines EPA enforcement role over Local Authorities Indictable offences Local Authority enforcement role over Group
Water Schemes Monitoring Programmes
Regulations & Guidance Available European Communities (Quality of Surface Water
Intended for the Abstraction of Drinking Waters) Regulations 1989
European Communities (Drinking Water) (No 2) Regulations 2007
Fluoridation of Water supplies Regulations 2007
Water Services Act 2007
Regulations & Guidance Available
Health & Safety Regulations
Nitrates Regulations 2005
Water Pollution Acts 1977 & 1990
Regulations & Guidance Available
EC Drinking Water Regulations 2000, A Handbook on implementation for Local Authorities
Guidance on Regulations 9 & 10 of the EC (DW) (No2) Regulations 2007
Annual Reporting of Monitoring Results to the EPA
Regulations & Guidance Available Guidance for Local Authorities on the
Development of a Remedial Action List for public water supplies
Guidance on risk screening for Local Authorities
Code of Practice on Fluoridation of Drinking Water 2007
Regulations & Guidance Available
EPA Drinking Water Guidance Circular: Disinfection of Water Supplies
EPA Advice on Lead Connections
Regulations & Guidance Available EPA Water Treatment Suite of Manuals
WHO Guidelines for Drinking Water Quality
Drinking Water Inspectorate - UK
Routine Implementation
Sampling programmes Check Monitoring Audit Monitoring
Laboratories Local Authorities EPA Public Analyst Private
Mechanics of Implementing the Regulation in the event of a quality failure Failure of a chemical or microbiological
parameter Detect the quality failure Response
Consultation with the HSE Notification of the public
Site specific issues Wider customer groups
Notification of the EPA Return water to acceptable quality
Incident Close Out and Review
Typical Response – quality failure First 30 minutes
Verify result and sampling location Notify Area Manager to immediately start an
investigation of the treatment plant and distribution system
Contact the HSE and discuss the issue – written request for advice issued.
Decide if the seriousness of the issue merits a meeting with HSE
Typical Response – quality failure.
Issue detected
HSE Health Determination
Action Plan
Notify EPA
Notification of public if necessary with advice
Ongoing consultation and information sharing with HSE & EPA
Close out and review
Typical Response – quality failure
Action Plan
Sampling Programme
Pollution Investigation
System checks
Customer contact - phones , web, etc
Significant/Sensitive users
Alternative supplies
Staff
What Type of failures need to be notified to the EPA
Environmental Protection Agency
Table AMicrobiological Parameters
Table B Chemical Parameters
If HSE determines the issue is NON TRIVIAL
Table CIndicator Parameters
Sanitary Authority
Water Supply Zone
Water Supply Zone Code
Estimated Population Affected
Parameter
Result[1]
Date and Location of Failure
Notification under Regulation (please tick) 9(1)
10(2)XX
Have the HSE been consulted?
What advice has been provided by the HSE
Likely Cause and Duration of Failure
Has this parameter exceeded the Parametric Value in this Supply in the past 12 months (if so give details)?
Immediate Action Taken to Inform/Protect Consumers
Immediate Corrective Action Taken
Limerick County CouncilDrinking Water Incident Log SheetName of Supply Xxx Public Water Supply
Supply Code 1900PUBxxxx
Population Served XX People
Geographical Area covered by the Supply
Group Water Schemes Served
List of public GWS/ estates not taken in charge
Limerick County CouncilDrinking Water Incident Log SheetSensitive Users Refer to HSE for advice
Significant Users Hospitals, nursing homes, schools, industries, food processing businesses,
Outline of Treatment Description of treatment process
Monitors Chlorine, turbidity, nitrate, ammonia. on- line/off- line, alarmed?
Limerick County CouncilDrinking Water Incident Log SheetFeatures in the Distribution
SystemReservoirs ,booster chlorination, contribution from other PWS
Date of Initial Incident
Response Plan
Action Log
Actions agreed with HSE
Typical Response – quality failure Return water to acceptable quality Prove that this is the case Agree that any health concern is over with
HSE Review the incident and close out Follow up legal action against polluters if
appropriate
L.A. relationship with Group Water Schemes Monitor quality and compliance
Ability to serve notices requiring the production of an Action Plan.
Licensing – not yet in force
We currently have blunt control without a tool for fine control
Changes in 2007/8 in how Local Authorities work Faster Response time to all parametric failures
Initial response time in the event of a Q.F. now aiming for 30 minutes
More rigorous response to quality failures Now investigate EVERY failure Example a taste incident resulted in 396 tests being carried
out on a water supply Response has lead to a doubling of the throughput in the
laboratory alone to date in 2008
Changes in 2007/8 in how Local Authorities work
Much more frequent communication with the HSE
Consultation within HSE between PEHO & Director of Public Health or their agents to arrive agree the health advice.
Changes in 2007/8 in how Local Authorities work Upgraded treatment by installation of
SCADA Alarmed Chlorine Monitors Alarmed Turbidity Monitors Improved Telemetry Upgrade of treatment plants WRT Safety Issues e.g.
Site Security
Changes in 2007/8 in how Local Authorities work More focused management
Water Safety Plans Drinking Water Incident Response Plans
Change of attitude – second best is worse than nothing at all sometimes
Changes in 2007/8 in how Local Authorities work More frequent communication with our
customers How we notify customers in the event of a quality
or supply failure How we provide information to customers on their
water supply How customers can communicate with us
Tracking Responding
Changes in 2007/8 in how Local Authorities work Source Protection
Full source protection at both ground water and surface water sources
Rigorous planning controls and pollution controls within the zones
Changes in 2007/8 in how Local Authorities work Use of non traditional staff in source
protection
Added layer of protection for sources and water supplies
New layer of protection is cost neutral Reduces Cryptosporidium monitoring costs Helps focus resources
Change of attitude
We are moving from an attitude that ‘there is nothing wrong with the water’ to a commitment to proving that there is nothing wrong with the water and to closing out any non conformances rapidly
The professionally delivered service We are in the business of food production
Issues of safety, cleanliness, raw material protection, product standard, customer protection, HACCP and overall quality control must meet a food production standard
The professionally delivered service Customers receive our product 24 hours a
day 7 days a week.
We work 9:30 to 5 Monday to Friday
This is no longer acceptable
The professionally delivered service Introducing On-call for laboratory staff and process
technicians - initially Cover after hours and weekend emergencies
Changed working hours to allow the laboratory achieve the work rate we need and to be able to respond to incidents promptly (cost neutral)
Making better use of the resources we have Caretaker sampling Volunteer sampler groups ( Co Co staff all grades) ‘Taxi’ lines
The professionally delivered service Being proactive on quality
Intensive Nitrate Surveys
County wide Lead monitoring
County wide THM monitoring
The professionally delivered service How compliant are we – 90’s% How compliant do we need to be? 99.999%? EPA guidance!!
6 Sigma type approach to drinking water production reduce process variability
The Way We Were
The Way We Are
Acknowledgements
Management Team Operational & Maintenance Team Audit Team/Quality Control HSE EPA Customers
Thank you