WATER SAFETY PLAN[f1] SPANISH TOWN WATER SUPPLY

ST. CATHERINE, JAMAICA OCTOBER 2007

Developed with technical support from PAHO/EPA/CDC for the Ministry of Health Jamaica

by

E E M

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TABLE OF CONTENTS

PREFACE.......................................................................................................................................3 ACKNOWLEDGEMENTS.............................................................................................................5 1.0 BACKGROUND .................................................................................................................6 2.0 INTRODUCTION ...............................................................................................................7

2.1 Intended Use of the Water Safety Plan .............................................................................7 2.2 Intended Use of Water .....................................................................................................8 2.3 Regulatory Framework.....................................................................................................9

3.0 WORKING TEAM............................................................................................................11 4.0 DESCRIPTION OF THE STUDY AREA & ENVIRONS .................................................13

4.1 Meteorology...................................................................................................................16 4.2 Major Industries & Sources of Employment in St. Catherine..........................................17 4.3 The Water Supply Area..................................................................................................18 4.4 Catchment......................................................................................................................18 4.5 Main Sources of Contamination of the Rio Cobre & Irrigation Canal .............................22

5.0 WATER SUPPLY SYSTEM .............................................................................................28 5.1 The Wells ......................................................................................................................28 5.2 Water Treatment Plant Process � Spanish Town Water Treatment Plant.........................33 5.3 Distribution System........................................................................................................38 Source: National Water Commission .........................................................................................38 5.3.1 Types of pipelines ......................................................................................................39 5.3.2 Valves........................................................................................................................39 5.3.3 Aged Mains................................................................................................................39 5.3.4 Leakage Problems ......................................................................................................39 5.3.5 Metering ....................................................................................................................40 5.3.6 Pumping Stations .......................................................................................................41 5.3.7 Distribution Storage ...................................................................................................42

6.0 EXISTING MONITORING REGIME ...............................................................................43 6.1 Ministry of Health (MOH) Water Quality Monitoring and Surveillance .........................43 6.2 Ministry of Health Field testing Kits ..............................................................................45 6.3 Laboratory Auditing.......................................................................................................46 6.4 National Water Commission �In-Plant� Water Quality Monitoring ................................46 6.5 Water Quality Monitoring and Surveillance System Weaknesses ...................................47

7.0 EARLY WARNING SYSTEM FOR WATER QUALITY.................................................48 8.0 HAZARDS AND THREATS.............................................................................................50 APPENDIX 1 � OFFICE OF UTILITIES REGULATION QUALITY OF SERVICE STANDARDS FOR NWC ............................................................................................................67 APPENDIX 2 � ACTIVITY/RESPONSIBILITY MATRIX..........................................................72 APPENDIX 3 � SPANISH TOWN POPULATION DATA FOR 1991 & 2001 .............................76 APPENDIX 4 � STATUS OF WATER SOURCES FOR SPANISH TOWN WATER SUPPLY SYSTEM, JANUARY 2007 ..........................................................................................................78 APPENDIX 5 � Hazards and Control Measures Associated with Spanish Town Water Supply System ..........................................................................................................................................80

Figure 1 - Framework for Safe Drinking Water, WHO ....................................................................6 Figure 2- Map of Jamaica ..............................................................................................................15 Figure 3 - Map Showing St. Catherine ...........................................................................................16

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Figure 4 - Map Delineating Boundary of Spanish Town (STATIN) ...............................................20 Figure 5 - Spanish Town Water Supply Service Area ....................................................................21 Figure 6 - Rio Cobre Basin ............................................................................................................22 Figure 7 - Effluent Path from Agro Industries to Rio Cobre...........................................................25 Figure 8 - Sewage Treatment Plants in the Rio Cobre Watershed...................................................26 Figure 9 - Areas along NIC Irrigation Canal Vulnerable to Contamination ....................................27 Figure 10 - Simple Schematic of Spanish Town Water Supply System..........................................32 Figure 11 - Simple Schematic of Spanish Town Water Treatment Plant Process............................36 Figure 12 - Layout of Existing Spanish Town Water Treatment Plant ............................................37 Figure 13 - Percentage of Leak Repairs by Diameter Pipe .............................................................38

Table 1 - Treated Water Quality Standards for Jamaica and Other Jurisdictions...............................8 Table 2 - Quality of Service Standards (QSS) ................................................................................10 Table 3 - Members of the Task Force ............................................................................................ 11 Table 4 - Rainfall at Ewarton (mm) ...............................................................................................17 Table 5 � Source of Water Supply to Spanish Town Households ...................................................28 Table 6 - Water Sources and Areas Supplied .................................................................................29 Table 7 - Production Capacities of Wells and the Spanish Town Treatment Plant ..........................31 Table 8 - IJAM Water Quality Monitoring Requirements for NWC (Leaving the Treatment Plant)44 Table 9 � IJAM Water Quality Monitoring Requirements for NWC (Distribution System) ............44 Table 10 - Ministry of Health Sampling Requirements ..................................................................45 Table 11 � MOH Recommended Test Parameters for Physical and Chemical Analysis of Drinking

Water.....................................................................................................................................45 Table 12 - NWC Water Quality Monitoring Regime at the Treatment Plant by Operator ...............46 Table 13 - Likelihood and Severity Categories ..............................................................................50 Table 14 - Risk Scoring Matrix for Ranking Risks.........................................................................51 Table 15 - Hazard Analysis and Risk Characterisation for the Spanish Town Water Supply System

..............................................................................................................................................52 Table 16 - Control Measures for Hazards Identified for Priority 1 & 2 Risks .................................55 Table 17 � CCPs on Water Treatment Process ...............................................................................61

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PREFACE

The Pan American Health Organization (PAHO), the U.S. Centres for Disease Control and Prevention (CDC), and the U.S. Environmental Protection Agency (EPA) formed a partnership on December 10th, 2004 called the �PAHO/CDC/EPA Partnership to Improve Environmental Public Health in Latin America and the Caribbean� to work with health and environment sectors in Latin American and the Caribbean, to improve environmental public health practices and the coordination between the health and environment sectors. In June 2005, ten countries were invited to participate in the first Workshop to introduce the WHO Water Safety Plans to Latin America and the Caribbean in Buenos Aires. Participating countries included: Argentina, Bolivia, Brazil, Guyana, Haiti, Honduras, Jamaica, Mexico, Nicaragua, and Peru. In October 2005, Jamaica was selected as the first Water Safety Plan (WSP) Demonstration site by the PAHO, CDC and EPA Partnership. In January 2006, a technical team comprised of health and water experts from PAHO, CDC and EPA visited Spanish Town and met with representatives of various ministries and the water utility (the National Water Commission) to discuss the implications of developing a WSP there. It was agreed that a WSP would be beneficial for the Spanish Town Water Supply System which serves the population of Spanish Town (482,308 in 2001 and projected to be 494,486 in 2006) with potable water. A Task Force1, comprised of various institutions represented by the Water and Wastewater Subcommittee of the Central Health Committee, was established in May 2006. To guide the development of the Plan in Jamaica, a Task Force was created in June 2006 by the Central Health Committee - Water Subcommittee (CHC-WSc), chaired by Mr. Peter Knight, Director of the Environmental Health Unit (EHU) in the Ministry of Health and Courtney Lawes of the National Water Commission. To assist the Task Force a Consultant was engaged by the CDC/PAHO/EPA partnership in December 2006, to coordinate the development of the Water Safety Plan. The preparation of the Water Safety Plan commenced in December 2006. The goals of developing a WSP Project for Spanish Town include:

• Building collaboration between ministries of health, environment, and water sectors by creating a WSP committee where they all have a voice.

• Assisting the National Water Commission, operators of the Spanish Town Water Treatment Plant, to write a WSP, which will allow them to make informed decisions on how to change and/or improve the Spanish Town water system being addressed in this project.

1 See Task Force Membership at Table 3

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• Holding a Regional WSP Technical Workshop, which will allow other countries to see firsthand how a WSP Project is undertaken and how they can start a similar project in their own country.

• Sharing lessons learned with WHO�s WSPortal (www.who.int/wsportal) to reach a global audience and further the promotion of WSPs within Jamaica and with other countries.

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ACKNOWLEDGEMENTS

We acknowledge and thank the following agencies and their staff for their contribution to the process and support throughout the preparation of this Water Safety Plan for the Spanish Town Water Supply System in St. Catherine, Jamaica:

1. Pan American Health Organization (PAHO), the U.S. Centers for Disease Control and Prevention (CDC), and the U.S. Environmental Protection Agency (EPA) Partnership to Improve Environmental Public Health in Latin America and the Caribbean

2. Pan American Health Organisation (PAHO) Jamaica 3. Ministry of Health 4. Environmental Health Division in the Ministry of Health 5. National Water Commission 6. National Irrigation Commission 7. National Environment & Planning Agency 8. Water Resources Authority 9. Pesticides Control Authority 10. National Public Health Lab/Environmental Health Lab, Ministry of Health 11. St. Catherine Health Services 12. St. Catherine Parish Council 13. Environmental & Engineering Managers Ltd.

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WATER SAFETY PLAN SPANISH TOWN WATER SUPPLY SYSTEM, ST. CATHERINE

1.0 BACKGROUND The safety and performance of a system for providing drinking-water depends upon the design, management and operation of the three principal components: source, treatment and distribution. If contamination has occurred and it is not controlled before it reaches the consumers� taps, illness or even death is possible. The system must therefore be designed to cope with all of the problems that could occur, and proper performance of the entire system must be ensured at all times. The most effective way to consistently ensure the safety of a drinking-water supply is through the use of a comprehensive risk assessment and risk management approach that encompasses all of the steps in the drinking-water supply train from the catchment to the consumer. The World Health Organisation (WHO) has developed a systematized Water Safety Plan (WSP) approach based upon worldwide experiences of success in managing drinking-water quality (WHO 2004a). The WSP concept draws upon principles and concepts of prevention, multiple barriers and quality management systems such as Hazard Assessment Critical Control Points (HACCP) as used in the food industry. As shown in Figure 1, a WSP has three key components guided by health-based targets (drinking-water standards and guidelines and codes), and overseen through surveillance of every significant aspect of the drinking-water system. The three components are:

• System assessment to determine whether the system as a whole (from source to consumer) can consistently deliver water that meets health-based targets. This includes assessment of design criteria for new systems as well as modifications.

• Measures to monitor and control identified risks (and deficiencies) and ensure that health-based targets are met. For each control measure, appropriate operational monitoring should be defined and instituted that will rapidly detect deviations.

• Management plans describing actions to be taken during normal operations or incident conditions, and documenting the system assessment (including system upgrades and improvements), monitoring, and communication plans and supporting programmes.

Figure 1 - Framework for Safe Drinking Water, WHO

HEALTH BASED

OBJECTIVES

Public Health and health

results

WATER SAFETY PLANS

System Evaluation

ManagementOperational Monitoring

SURVEILLANCE

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The primary objectives of a WSP are the minimization of contamination of water sources, reduction or removal of contamination through appropriate treatment processes, and prevention of contamination during processing, distribution and storage. The Water Safety Plan methodology, which is a health-based risk management approach to drinking water quality management, is described in Chapter 4 of the 3rd edition of the WHO Guidelines for Drinking-Water Quality (GDWQ/WHO/2004). The health-based objectives are established by the highest health authority in consultation with the suppliers and consumers, being reflected in laws regulations and technical standards. The evaluation of the system, the operational monitoring and the management are prepared and applied by the providers of the water supply service. Finally, surveillance is the responsibility of an independent agency, normally represented by the Ministry of Health that periodically reviews all the safety aspects applied by the provider of the service and who all the time is the one responsible for quality control, the operational monitoring and to ensure the application of good operational practices. 2.0 INTRODUCTION The Water Safety Plan (WSP) for Spanish Town Water Supply System has been developed for the Ministry of Health through a partnership between PAHO, CDC, USEPA and the various governmental organizations in Jamaica responsible for providing safe drinking water to the public. The initial step saw the formation of a Task Force in mid July 2006 and then the hiring of a Consultant in December 2006 to assist the Task Force in putting the Water Safety Plan together. The first meeting of the Task Force was held on December 14, 2006. In developing the Water Safety Plan, examples of existing plans for Melbourne, Australia and Kampala, Uganda were reviewed. Melbourne Water is located in Victoria, Australia and was the first bulk water supplier in Australia to implement and achieve HACCP certification in 1998. Kampala, the capital city of Uganda in East Africa, was the first water supplier in Africa to develop a Water Safety Plan in 2002. This was achieved with technical assistance from the Water, Engineering and Development Centre (WEDC) UK and funding from the Department for International Development (DFID) UK through their Knowledge and Research programme. The Kampala piped water supply is managed by the National Water and Sewerage Corporation (NWSC) with distribution operation let by management contract to Ondeo Services Uganda Limited (OSUL).

2.1 Intended Use of the Water Safety Plan

The Water Safety Plan will be used by the National Water Commission (NWC), the service provider, to enable them to focus on the critical areas that need to be managed to ensure that adequate water meeting the desired water quality standards is provided to Spanish Town. It will also be utilised by:

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• the MOH, defining the critical areas that need to be monitored to ensure that health based objectives are met

• the Water Resources Authority (WRA) to assist with surface and underground water resource protection utilised for drinking water

• the National Environment and Planning Agency (NEPA) to help identify and manage possible point and non-point sources of contamination of the water resources utilised for drinking water

2.2 Intended Use of Water

Water supplied by the National Water Commission for Spanish Town must meet the health based drinking water standard established in 1982 by the Ministry of Health referred to as the Interim Jamaica Criteria (IJAM). This standard was adapted/adopted from the WHO Drinking Water Guidelines. Table 1 shows the IJAM as well as drinking water quality (health-based) standards established by the USEPA and those recommended by WHO.

Table 1 - Treated Water Quality Standards for Jamaica and Other Jurisdictions

Contaminant or Parameter

IJAM mg/L

USEPA (1) mg/L

WHO 3rd ed. (2) mg/L

Fluoride 1.5 4.0 1.5 Nitrate (as N) 10.0 10.0 11.3 Arsenic 0.05 0.01 0.01 Barium 1.0 2.0 0.7 Cadmium 0.01 0.005 0.003 Copper 1.0 1.3 2.0 Chromium (Total) 0.05 0.10 0.05 Cyanide 0.20 0.20 0.07 Lead 0.05 0.015 0.01 Selenium 0.01 0.05 0.01 Mercury 0.002 0.002 0.001 Silver 0.05 0.10 * NHBG Manganese 0.05 0.05 * 0.4 Magnesium 1000 * * Not Regulated NHBG Iron 0.3 0.3 * NHBG Zinc 1.5 5.0 * NHBG Chloride 250 ** 250 * NHBG Calcium 200 ** Not Regulated NHBG TDS (Total Dissolved Solids) 500 ** 500 * NHBG Turbidity 5NTU 1 NTU*** NHBG pH 7 - 8.5 6.5 - 8.5 * NHBG Colour (Colour Units 15 15 * NHBG Odour (TON) 3 3 * NHBG Residual Chlorine Always present See Notes 0.5 ppm (Min) Total Coliform Maximum 10 % Maximum 5 % Maximum 5 %

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Notes: (1) - USEPA - US Environmental Protection Agency Drinking Water Regulations. July 2002. (2) - WHO - World Health Organization Drinking Water Guidelines - 3rd Edition 2003. * Secondary Standards set by USEPA. Others contaminants listed are MCL's - Maximum Concentration Level ** Recommended limits for distribution system, by IJAM *** As of January 1, 2002, turbidity may never exceed 1 NTU, and must not exceed 0.3 NTU in 95% of daily samples in any month NHBG - No Health Based Guidelines established by WHO for these contaminants. Minimum chlorine residual concentrations not established by USEPA. Instead minimum CT (concentration X Time) levels established for certain classes of water. For Total Coliform, IJAM and USEPA refers to maximum % positive per month. WHO refers to maximum % positive (TC) through out 12 month period.

2.3 Regulatory Framework

The Water Sector Policy (1999) establishes the framework for the management of water resources and the provision of potable water and irrigation water in Jamaica. It generally speaks to:

• the management of the quantity and quality water resources • making potable water accessible to all in adequate quantities, including social water

for those unable to pay for water supply services • providing treated water efficiently and cost effectively

Although the supply of drinking water is closely monitored by the Ministry of Health (MOH) which has legal responsibility for sanitation matters, there are no laws governing the quality of drinking water supplied to the consumer in relation to the IJAM health based targets. The MOH is currently reviewing the IJAM standard and plans to develop Drinking Water Guidelines and Regulations for Jamaica. The National Water Commission Act (1963) established the National Water Commission and outlined the roles and responsibilities of the organisation primary of which is the supply of potable water throughout the island. The Act does not speak to water quality and monitoring issues. The Office of Utilities Regulations (OUR) in Jamaica has established overall and guaranteed (service) standards that must be met by the NWC for the supply of potable water under the �Office of Utilities Regulation Act 1995 As Amended�. These �quality of service� standards are outlined in Table 2.

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Table 2 - Quality of Service Standards (QSS)

CODE FOCUS DESCRIPTION PERFORMANCE MEASURE OVERALL STANDARDS WOS1 Water Quality Testing samples for

impurities To ensure that water is within standards as specified by MOH

WOS2 Water Pressure Minimum/maximum water pressure

Must maintain a pressure ranging from 20 to 60 psi

WOS3 Reliability of supply

Notify public of intention to interrupt supply � planned interruptions

Minimum notification time of 12 hours for short interruptions (less than 4 hours) and 24 hours for longer interruptions (more than 4 hours)

WOS4 Reliability of supply

Restoration after emergency lock -off

Maximum time of 24 hours to restore supply in urban areas. Maximum of 48 hours in rural areas.

WOS7 Water meters Changing meters NWC must provide consumers with details of the date of the change, meter readings on the day and serial numbers of the new meter

GUARANTEED STANDARDS WGS1 Access Connection to supply Maximum time of 10 working days WGS2 Delivery of

bills Issue of first bill Maximum time of 48 working days

after connection WGS3 Appointments Keeping

appointments

Must make and keep an appointment at customers request and must notify customer prior to appointed time, if cannot keep appointment.

WGS4 Complaints Response to complaints not bill related

Maximum of 5 working days to acknowledge customer complaints, after receipt. Maximum time of 30 working days to complete investigation and respond, from date of receipt of complaint

WGS5 Complaints Response to billing complaints

Maximum of 5 working days to acknowledge customer complaints, after receipt. Maximum time of 30 working days to complete investigation and respond, from date of receipt of complaint

WGS6 Account status Issue of account status

Meter to be read on same day customer is moving, if on a weekday (within 2 days of move if on a weekend) providing 5 days notice of move is given. Maximum time of 15 working days to provide final bill after move

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CODE FOCUS DESCRIPTION PERFORMANCE MEASURE

WGS7 Water meters Meter installation Maximum of 30 working days to install meter on customer�s request

WGS8 Water meters Repair or replacement of faulty meters

Maximum time of 40 working days to repair or replace meter after being informed of defect

WGS9 Water meters Meter reading Maximum of 2 months between each meter reading and between bill issues

WGS10 Reconnection Reconnection after payment of overdue amount

Maximum of 24 hours to restore supply in urban areas. Maximum of 48 hours to restore supply in rural areas. Not applicable in situations where NWC has removed infrastructure as a consequence of illegal connections.

WGS11 Compensation Payment of compensation

Maximum of 60 days after claim is received to process and make payment. Customer must make claim within 2 billing periods or 60 days (whichever is longer) to make claims of perceived breach

Currently the NWC is unable to meet pressure requirements in some areas of the study area as required by the OUR QSS even though MOH and Jamaica Bureau of Standards are satisfied with the quality of the water. Generally the QSS complements the WSP goals and objectives. More details on the overall and guaranteed service standards are included at Appendix 1. 3.0 WORKING TEAM A multidisciplinary Task Force was established in July 2006 to prepare the Water Safety Plan for the Spanish Town Water Supply System. Table 3 provides information on the composition of the Task Force.

Table 3 - Members of the Task Force

NAME ORGANISATION & POSITION

EXPERTISE

Michelle Watts Senior Environmental Officer, Water Resources Authority

Co-Chair Task Force Geography, Hydrology (Water Resources Management), Water Quality Management: Development of Water Quality Standards and Regulations, Ground & Surface water Pollution Studies

Errol Matthie Water/Wastewater Specialist, Environmental

Co-Chair Task Force, Environmental Health, oversees the Ministry of Health�s water quality

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NAME ORGANISATION & POSITION

EXPERTISE

Health Unit, Ministry of Health

monitoring programmes

Ianthe Smith Consultant, Environmental & Engineering Managers Ltd.

Coordinator of Task Force; Civil and Environmental Engineering Consultant Environmental Engineer

Jermaine Jackson Water Production Manager, National Water Commission

Mechanical Engineering specialising in chlorination systems

Calvert Selby Senior Technical Officer � Chemistry, Eastern Laboratory, National Water Commission

Applied Chemistry, Water Quality

Garth Jackson Senior Project Manager, National Water Commission

Civil Engineering, specialising in the design, implementation and management of water and wastewater capital projects; currently coordinating the implementation of the KMA Project

Paulette Kolbusch Actg. Director Legal Standards & Enforcement Division, National Environment & Planning Agency

Industrial Chemistry, Environmental Chemistry

Peter Knight Director, Environmental Health Unit, Ministry of Health

Environmental Health Practitioner, manages the Ministry of Health environmental health programmes

Rohan Stewart Regional Systems Manager, National Irrigation Commission

General Agriculture; manages the irrigation services in the eastern region in accordance with policies and objectives of the NIC

Nilsia Johnson National Public Health Lab/Environmental Health Lab, Ministry of Health

Chemical Engineering, wastewater and other environmental health issues; Lab Manager for the Environmental Health Laboratory.

Hyacinth Chin-sue Registrar, Pesticides Control Authority

Agronomy and Crop Science

George Wright Water Quality Control Manager St. Catherine, St. Catherine Health Services

Public Health Inspector; water quality management (water treatment systems, chemical bacteriological and chlorination procedures)

Rainford Blackwood

Superintendent Minor Water Supplies, St. Catherine Parish Council

Supervises workers (part time chlorinators) who collect samples to check for residual chlorine in minor water supplies; allocates work for maintenance of pipes associates with minor water supplies

Don Streete Manager Quality Assurance, National Water

Analytical Chemistry, Coastal and Marine Environment Pollution Prevention and

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NAME ORGANISATION & POSITION

EXPERTISE

Commission Watershed Management Pauline Adams-Russell

Area Manager, St. Catherine, National Water Commission

Electrical Engineering and Management, manages NWC water supply systems for the parish

Denise Haiduk Environmental Health Specialist, Environmental Health Unit, Ministry of Health

Water and wastewater management

Ana Treasure Environmental Health Adviser, PAHO

Solid waste management and water and wastewater systems

Dr. Francia Prosper-Chen

Medical Officer (Health) - St. Catherine Health Department

Public Health Practitioner with responsibility for the health of parish

Ms. Camille McDonald

Head of Sanitation Laboratory, National Public Health Laboratory

Medical Technologist responsible for drinking water quality analysis

The activity and responsibility matrix at Appendix 2 was used to guide the process of the development of the Water Safety Plan. It outlines the activities in sequential order as well as the persons with responsibilities. It was updated at each meeting of the Task Force with the target dates for completion of tasks. 4.0 DESCRIPTION OF THE STUDY AREA & ENVIRONS St. Catherine is the third largest parish in Jamaica with an area of 1192.4 km2 (460.4 miles2 or 119,240 hectares) located in the southern section of Jamaica (Figure 2 � Map of Jamaica and Figure 3 - Parish of St. Catherine). The south of the parish is very flat except for the Hellshire Hills near the south coast while the central and northern sections are very mountainous. The northern border is on Mount Diablo which crosses over into St Ann and the highest point on that border is 686 metres (2,700 feet). The plain is approximately 23,000 hectares (57,000 acres) and occupies the southern part of the Rio Cobre basin. The Rio Cobre river is one of the largest on the island and it is the only river which runs across the southern plain of St. Catherine. The river provides water to irrigate approximately 7,042 hectares (17,402 acres) on the plain and supplies domestic water for Spanish Town. The Rio Cobre watershed covers the entire parish of St. Catherine. Average demand for irrigation water from 2002 to 2005 (based on fiscal year April to March) was 66.7 million m3 per year. Based on projected land use patterns the National Water Irrigation (NIC) does not expect the demand to exceed 80 million m3 per year in the next 5 to 10 years. The main wetland areas which dominate the plain are the Hellshire/Cabaritta swamp, The Great Salt Pond and the Hunts Bay Dawkins Pond between Kingston and St Catherine.

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There are no rare or endemic flora and fauna in the upper watershed but here is an endemic iguana habitat in the southern part of the parish in the dry limestone forests at Hellshire, St. Catherine. The southern part of the parish falls within the Portland Bight Protected Area declared under the Natural Resources Conservation Act (1991) in April 1999. Mineral deposits found in the parish include bauxite, copper, limestone, commercial marble, clay, sand and gravel.

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Figure 3 - Map Showing St. Catherine

4.1 Meteorology

Jamaica has a tropical maritime climate. Mean daily temperatures range from a seasonal low of 26 degrees centigrade in February to a high of 28 degrees centigrade in August. Daily sunshine hours are fairly constant throughout the year, averaging about 8.2 hours in the southern plains (Evans, 1973). Long term mean annual rainfall over the island is about 1,980 mm (Evans, 1973). Much of the rainfall results from the north-easterly trade winds, which deposit most of their moisture on the northern slopes of the axial mountain ranges, with the consequence that the southern half of the island is in the rain shadow. Rainfall on the north-eastern slopes of the Blue Mountain range is generally 3,000 to 5,000 mm/year, whereas in the south coastal plains of St. Catherine and Clarendon it is generally less than 1,500 mm/year. Island-wide long term mean annual rainfall exhibits a characteristic pattern, with the primary maximum in October and the secondary in May. The main dry season lasts from December to April.

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Jamaica regularly comes under the influence of tropical storms and hurricanes during the period July to November, characterized by flood producing rainfall of high intensity and magnitude. Mean monthly relative humidity on the south coast is near constant throughout the year, ranging from a low of 71 percent in August to a high of 77 percent in October and averaging 74 percent (Evans, 1973). Rainfall data collected by West Indies Alumina Company (WINDALCO) at meteorological stations situated at Ewarton (in the Upper Rio Cobre Basin � Figure 6) over 5 years from 2000 to 2004 are presented at Table 4. The data indicates that:

(a) 2002 had the highest annual rainfall 1937 mm for Ewarton and these figures are in keeping with the long term mean annual rainfall for Jamaica

(b) Monthly average rainfall for Ewarton ranges between 98 and 161mm (c) The month with the highest rainfall is September, followed by October then May

which follows the characteristic rainfall patterns for the island (d) The month with the lowest rainfall is February and the driest consecutive months are

from January to March, in keeping with general trends for the entire island

Table 4 - Rainfall at Ewarton (mm)

Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec Total Annual

Avg Monthly

2000 28 23 36 43 94 194 123 116 245 74 98 98 1171 98 2001 86 13 43 81 171 29 127 124 164 246 133 79 1298 108 2002 11 11 70 62 611 85 124 133 630 84 55 60 1937 161 2003 105 30 77 93 236 263 95 170 138 103 85 93 1490 124 2004 34 8 36 55 105 54 149 100 684 99 165 103 1591 133

5 yr total 265 85 262 334 1218 625 619 644 1861 605 536 432 5 yr avg 53.1 17.0 52.5 66.8 243.6 125.0 123.8 128.8 372.3 121.1 107.2 86.3

4.2 Major Industries & Sources of Employment in St. Catherine The major source of employment is agriculture. There are a substantial number of small farmers who practise mixed farming - domestic and commercial crops which include bananas, coconuts, pineapple, citrus, pumpkins, pepper, coffee and calaloo. Larger properties produce mainly sugar cane, bananas and citrus. There are several dairy farms in the parish. One of these is a one-thousand-acre farm in Old Harbour which is a model for the West Indies. The Salt Ponds District between Spanish Town, Port Henderson and Passage Fort is noted for the fine fish especially calipera taken from the Hanson and Dawkins Salt Ponds in particular. Present fish sanctuaries within the parish are Galleon Harbour, Coquar Bay and Manatee Bay.

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As an industrial centre St. Catherine is only second to Kingston and St Andrew. West Indies Alumina Company (WINDALCO) has a bauxite/alumina plant and offices near to Ewarton (Figure 3) and is one of the largest employers in the parish. The largest salt producing plant in the Caribbean is in Spanish Town (Figure 3). Nestles, a manufacturer of milk products, Tradewinds Citrus a fruit juice manufacturer and Jamaica Citrus Growers Ltd. another juice manufacturer all have factories in Bog Walk (Figures 3 and 6). Old Harbour has the largest power plant in the island and several heavy industrial factories. Twickenham Park near Spanish Town is another industrial estate with mainly light industries including cigarettes, carpets, batteries, plastic items, medical and pharmaceutical products. Sulphuric acid used in the production of bauxite is also produced in the parish and Worthy Park and Bernard Lodge are two of the eight remaining sugar factories in Jamaica which are located in St. Catherine. 4.3 The Water Supply Area The Water Safety Plan is being developed for the Spanish Town water supply system. Spanish Town, the capital of St. Catherine is comprised of commercial, industrial and residential areas and is one of the fastest growing towns in St. Catherine and Jamaica second only to Portmore which is also located in the same parish further south. The 2001 population of Spanish Town based on data from the Statistical Institute of Jamaica (STATIN) is 129,018 which is an increase of 17 % in 10 years above the 1991 population (for the same boundaries) of 110,379. Applying an annual population growth rate similar to what was experienced in the last ten years, it is estimated that the 2006 population for Spanish Town is about 140, 000. It is instructive to note that the area defined as Spanish Town since 2001 is different from what it was defined as in 1991 as there has been a reduction in the number of communities comprising Spanish Town. Refer to Appendix 3 for Table showing the areas comprising Spanish Town in 1991 and 2001. A map from the STATIN (Figure 4) defines the boundaries of Spanish Town (area within the green line) based on the 2001 population census. Figure 5 shows the zones served by the Spanish Town Water Supply System.

4.4 Catchment The Rio Cobre basin occupies a 1,283 km2 (128,300 hectares) area in south-east central Jamaica in the parish of St. Catherine. The basin is sub-divided into two sub-basins, the Upper and Lower Rio Cobre. The two principal aquifers in the basin are limestone and alluvial aquifers. These are the main sources for water supply development for Spanish Town. The major river draining the Upper Rio Cobre sub-basin is the Rio Cobre with its larger tributaries being Rio Pedro, Rio Magno, Rio D�Oro and Thomas River. The upper basin is a closed hydrological unit with a single outlet through the Bog Walk Gorge. The Rio Cobre River is 52.5 km (31.6 miles) in length flowing south towards the sea (Hunts Bay, Kingston

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Harbour) with an average flow of 1million m3/d (WRA 1991). Figure 6 shows a map of the Rio Cobre Basin. The Rio Cobre Diversion Dam (otherwise called the Headworks Dam) is located at the downstream end of the limestone gorge that separates the Upper and Lower Rio Cobre sub-basins (NIC 1992). The watershed comprises areas that are severely degraded due to bauxite mining activities in the uppermost section of the parish of St. Catherine and other areas which are moderately degraded, mostly in the lower two thirds of St. Catherine.

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Figure 6 - Rio Cobre Basin

Source: Unpublished Report, 1995 (Natalie Morgan, Water Resources Authority)

4.5 Main Sources of Contamination of the Rio Cobre & Irrigation Canal Rio Cobre River

a) Agro-industrial and Industrial Effluent

Agro industrial and industrial effluents are two of the primary sources of point source effluent discharges to the Rio Cobre upstream of the NWC intake works. Nestle, a company which manufactures milk products discharges its effluent without treatment to the Moona Spring which flows into the Rio Cobre. Jamaica Citrus Growers

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Ltd. a juice and milk manufacturing company discharges its wastewater directly to the Rio Cobre without treatment. Tradewinds Citrus another juice manufacturing company treats its wastewater using stabilisation ponds but the treatment process is not effective as the effluent which is discharged directly into the Rio Cobre cannot consistently meet NEPA�s trade effluent standards. Figure 7 provides an indication of the effluent paths from these agro-industries to the Rio Cobre. The bauxite alumina company at Ewarton occasionally has accidental caustic effluent spills that eventually reach the river increasing the pH and sodium content. Wallenford Coffee Company operates a Coffee Pulpery which is located near to Bog Walk and discharges its effluent into the Thomas River, a tributary of the Rio Cobre. There is a settling tank to allow solids to be removed prior to discharge of the effluent however this is not always effective. Effluent discharges from this facility are seasonal as it only operates after coffee has been reaped. The effluent quality from these establishments are monitored by the National Environment and Planning Agency (NEPA), but none of them have licences to discharge effluent as they were in existence prior to the enactment of the regulation requiring a licence. NEPA is developing Trade and Sewage effluent regulations that will require these establishments to obtain licences for effluent discharge in accordance with prescribed standards.

b) Sewage Effluent

There are ten (10) sewage treatment plants within the upper watershed (as shown on Figure 8) that discharge their effluent into the Rio Cobre either directly or via gullies and tributaries. Of these plants, Angels Estate, Ewarton (Windalco) and Charlemont (also known as Charlie Mount) Sewage Treatment Plants have licences from NEPA for effluent discharge but the others listed below existed prior to the effective date of the licencing regulations.

• Bushy Park Charlie Mount • Mid Island Poultry • GC Foster College • Linstead Hospital • Knollis • Rosemount • New Works

c) Agricultural Runoff

Another main source of contamination is turbidity from storm water and agricultural runoff and sand mining. The storm water also tends to contain pesticides used in agricultural activities. The Pesticides Control Authority (PCA) has indicated that in the past endosulfan and endrin, used in coffee and citrus farming, was detected in the river. Endrin is no longer used as it has been banned by the Pesticides Control Authority since 1991. Endosulfan is used in restricted qualities by the Coffee Industry based on limitations placed on its use by the PCA until the use of Integrated Pest Management strategies are fully implemented.

24

During 2004-2006, NWC did an assessment of the water quality in the lower Rio Cobre Basin which revealed that Diuron exceeds drinking water standards in the Lime Tree Canal sample as does the sum of pesticides and Atrazine was found in concentrations above method detection limits. Atrazine is no longer imported based on a recent ban placed on this pesticide by the PCA but Diuron is a common herbicide in wide use. Due to the higher half-lives of Diuron and Atrazine in groundwater compared to soils it was recommended in the assessment that the recharge of these compounds to the aquifers should be monitored, particularly in the alluvium.

d) Solid Waste

Improper solid waste disposal into tributaries of the Rio Cobre and the river itself is another source of contamination. Curbside collection is not provided in hilly areas or in areas where population density is low, so in the absence of other local solid waste management alternatives, persons often dispose of their waste in gullies, tributaries of the Rio Cobre and the Rio Cobre.

Irrigation Canal The NIC irrigation canal on which the NWC has its intake works is affected by contamination from:

• Improper solid waste disposal • Untreated sewage effluent from informal settlements alongside the canal • Untreated wastewater from informal activities such as car washes and cook shops

Figure 9 shows the vulnerable areas along the irrigation canal upstream of NWC�s intake works.

25

Figure 7 - Effluent Path from Agro Industries to Rio Cobre

Source: Unpublished Report, 1991 (Prepared by M.Wint -Water Resources Authority)

Jamaica Citrus Growers Ltd.

To Linstead

Bog Walk

To Spanish Town

Nestle� Jamaica Ltd

Tradewinds Citrus Ltd

26

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re 8

- Se

wag

e T

reat

men

t Pla

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n th

e R

io C

obre

Wat

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ed[f5

]

27

Figure 9 - Areas along NIC Irrigation Canal Vulnerable to Contamination[f6]

Source: Prepared by J. Jackson, National Water Commission

28

5.0 WATER SUPPLY SYSTEM The Rio Cobre Diversion Dam is the point at which the National Irrigation Commission (NIC) diverts water from the river usually up to a maximum of about 0.276 million m3/d into an open channel canal to provide irrigation water for agricultural activities on the plains. The National Water Commission (NWC) has intake works for its water treatment plant on the NIC canal to supply Spanish Town with water for domestic use and abstracts water up to a maximum rate of 18,176 m3/d (4 migd2). The NIC manages the diversion of flows to ensure that there is sufficient water to meet the needs of the NWC as well as the water demand for irrigation. Spanish Town is supplied with potable water from a combination of wells and surface water from the Rio Cobre River which have a highly interconnected distribution network. The service area for the Spanish Town Water Supply System is shown on a map at Figure 5 indicating wells, booster stations and storage tanks. The boundaries of the service area tend to expand and contract based on water availability and demand. Based on the 2001 Population Census, Spanish Town has 37,656 households. 33,075 receive water from public sources. Of this number, 21,760 receive water from the public supply system directly to their dwelling. Of the remaining 11,315:

• 9,883 have access to water from the public supply piped in to the yard • 730 obtain water from standpipes and • 702 obtain water from public catchments3

Table 5 � Source of Water Supply to Spanish Town Households

In cases where water supply is interrupted, or there is inadequate water pressure, water is trucked to the affected communities by:

• the National Water Commission using their own trucks • private contractors hired by the NWC • Rapid Response water trucks ( Ministry of Water) based on requests from NWC

5.1 The Wells The first 10 wells listed in Table 6 below are the primary wells that supply Spanish Town with total production of approximately 9 migd. These wells are located in the Western Limestone Aquifer of the lower Rio Cobre Basin. The other 6 wells supply Kingston and

2 migd � million imperial gallons per day 3 Catchment refers to a public tank; persons obtain water by going to the tank

Public Source Private Source Area Total Households Piped

into dwelling

Piped into yard

Standpipe Catchment Piped into dwelling

Catchment Spring/ River

Other Not reported

Spanish Town

37,656 21,760 9,883 730 702 1,477 891 30 1,240 943

29

other areas outside of Spanish Town with some water diverted to supplement the water supply for Spanish Town. The sources which comprise the Spanish Town Water Supply System and the communities they serve are listed in Table 6 as follows:

Table 6 - Water Sources and Areas Supplied

SOURCES AREAS SERVED 1. Friendship Well Fairfield Road, St. Johns Road, Homestead Clayton

Heights, Fletcher�s Lane, Willowdene Hopedale, Villanova, Old Harbour Road Syndenham, Cromarty Housing Scheme, Leiba Gardens, Horizon Park, McCooks Pen, Hartland.

2. Yang�s Well St. Jago Heights, Thompson Pen, sections of Twickenham Heights, Tryall Heights, sections of Greendale, sections of Mount View.

3. Twickenham Park Well Twickenham Park Industrial Estate, sections of Spanish Town, Greendale, section of Lauriston

4. Central Village Well (a.k.a. White Marl)

Windsor Heights, parts of Greendale, Central Village, Twickenham Park Industrial Estate, Twickenham Park H/S, Parts of Spanish Town.

5. Browns Well Ebony Vale, Friendship Housing Scheme, Fairview Park, Paul Mountain, Frazers Content Dark Hole, Banana Hole, Kitson Town

6. Golden Acres Well Golden Acres, Stratmore Gardens, Coles Pen 7. Ensom City Well Ensom City 8. Green Acres Well Green Acres, Bellevue Heights, St. Johns Heights, St.

Johns Meadows, Mercury Gardens, Bendon, part of St. Jago Heights

9. Little Greendale Well Little Greendale, St. Jago Heights South, part of Tredegar Park

Wel

ls S

ervi

ng S

pani

sh T

own

10. Angels Well Angels Phase 1 & 2 11. Spanish Town Treatment Plant Spanish Town, Westmore, Hampton Green, Lakemore,

Newton Avenue, Nugent Street, McCoy�s Land, Mayfair Mews, Brunswick Avenue, Job�s Lane

12. Bybrook Well #2 Tulloch Springs, parts of Kingston, parts of Portmore, Simon, Job Lane, Eltham

13. Bybrook Well #4 Tulloch Springs, parts of Kingston, parts of Portmore, Simon, Job Lane, Eltham

14. Tulloch Springs Tulloch Springs, parts of Kingston, parts of Portmore, Simon, Job Lane, Eltham

15. Eastern Headworks Well H Portmore and Kingston 16. Eastern Headworks Well E Portmore and Kingston

Wel

ls S

ervi

ng K

ings

ton

and

Portm

ore

17. Eastern Headworks Well W Portmore and Kingston

30

Figure 10 shows a simple schematic of the wells and surface water sources for the Spanish Town Water Supply System and Table 7 shows the current and future production of these wells. The future production rates of the wells in 2008-2010 were obtained from the Kingston Metropolitan Area (KMA) Water Supply project documents. These rates were determined from projected water demand based on population growth and the production capacities of the wells. The first 9 wells listed in Table 7 are all in need of above ground and below ground rehabilitation. The performance of the wells has declined after a long period of operation without proper maintenance. Assessment of the need for and extent of below ground rehabilitation that will be required and execution of the necessary rehabilitation works will be done as a part of the KMA Water Supply Project. Above ground works already identified for attention generally includes:

• Repairs to and upgrading of the chlorination system to allow adequate chlorine contact time for disinfection as there are currently no chlorine contact chambers

• Repairs to and upgrading of well/relift pumps and motors • Modification of discharge piping to include proper arrangements for electromagnetic

metering of well water production • Replacement of delivery valving • Building repairs e.g. installation of doors, windows and security grills and civil site

works such as access roads and fencing • Switchgear Electrical work at site

Elevated chloride levels have been detected in most of the Spanish Town Water Supply wells such as Yang�s, Twickenham, Central Village/White Marl, Ensom City, Friendship, Golden Acres and Greendale Wells however the Water Resources Authority (WRA) indicates that this is not due to saline intrusion from pumping but it appears to be linked to geological structures within the limestone. As shown in Table 7, the intention is to retire two of the wells (Golden Acres and Ensom City) affected with this problem and to decrease the abstraction from Central Village and Yang�s. All well water is chlorinated prior to entering the distribution system. The dosage is set at a level to achieve 2.0 mg/L residual chlorine in the water leaving the facility. The chlorine dosing at each well installation is indicated in Table 7.

31

Table 7 - Production Capacities of Wells and the Spanish Town Treatment Plant

LOCATION PRODUCTION MIGD CHLORINE DOSING LBS/DAY

Actual Future (2008-2010)

1 Bybrook Well #2 2.68 3.01 2 Bybrook Well #4 2.55 3.01 3 Eastern Headworks Well

H 1.08 2.22

4 Eastern Headworks Well E

0.53 1.68

5 Eastern Headworks Well W

0.53 2.38

6 Friendship Well 1.05 1.51 20-25 7 Yang�s Well 1.48 1.06 10-15 8 Twickenham Park Well 0.50 0.50 10-15 9 Angels #1 Well 0.75 0.63 15 10 Green Acres 0.98 2.03 15-20 11 Ensom City 0.59 To be retired 10 12 Little Greendale 0.16 0.55 2 13 Golden Acres 0.57 To be retired 10-15 14 Central Village Well 1.48 0.75 20 15 Browns Well 0.85 0.42 20-25 Spanish Town Treatment

Plant 2.50 3.50

32

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33

5.2 Water Treatment Plant Process � Spanish Town Water Treatment Plant

Surface water is treated at the Spanish Town Water Treatment Plant as outlined in the simple schematic diagram in Figure 11 and Figure 12 shows the existing layout of the treatment plant (prior to the KMA Water Supply Project rehabilitation Works). The existing works (numbered accordingly on Figure 12) consists of the following:

1. Raw water abstraction pumps � transferring water from the Rio Cobre irrigation canal

2. Pre-treatment chlorination � dosed into the raw water transfer main 3. Rectangular settling tank (settling tank no. 1) - with aluminum sulphate (alum)

dosing prior to a mixing basin on the tank inlet 4. Circular settling tank (settling tank no. 2) 5. Low Lift Pump Station � transferring water from the settling tanks to the filtration

block. 6. Rapid Gravity Filtration 7. Chlorine disinfection 8. High lift pumps to distribution 9. Two treated water basins which are presently unused

Water is abstracted from the Rio Cobre via three pumps at an average rate of 11,365 � 13,183 m3/d (2.5 � 2.9 migd) up to a maximum rate of 18,200 m3/d (4 migd) which is the design capacity of the plant. The abstraction pumps are very old and the settings have been changed over time so information on their performance specifications is not available. However due to their age and repeated adjustments over many years their efficiency is low and new reliable pumps are required. The raw water is fairly high in turbidity, varying from as low as 2 NTU to as high as 150 NTU. The current practice is to shut the Water Treatment Plant down at turbidity values greater than 30 NTU.

Both alkalinity and hardness are typically in the order of 200 mg/L CaCO3, with a pH around 8. This translates into a water quality which is highly buffered, scale forming, with solids that are not easily settled. Subsequently, the colloids tend to shield harmful microorganisms during disinfection. The raw water is pre-chlorinated (from a 1 ton chlorine tank) at an average rate of 3.8 mg/L (using a booster pump and ejector). Pre-chlorination at this dose is necessary because the NWC has found that contamination from decaying vegetation, effluents and agricultural runoff together with tropical conditions favour a high bacteria level in the raw water. It also prevents algae from fouling the filters in the treatment plant. The pre-chlorination building and equipment are outdated and in need of replacement.

After chlorination, aluminium sulphate (alum) is dosed at 12mg/L. Dosing is done manually and there are no mechanisms in place to prevent under or overdosing of alum. The original design of the Spanish Town Water Treatment plant did not include infrastructure for coagulation and flocculation. This feature was retrofitted into the original design to what exists today however this system has never functioned effectively due to design limitations.

34

Coagulation and flocculation take place in a rectangular tank with a design capacity of 15,570 m3 but due to the build up of silt in the reservoir, which is difficult to clean due to the design of the tank, the effective depth has been reduced from 5.5m to 4.5m so the effective volume of the tank is about 12,740 m3. Additionally, an appropriate flash mixer is lacking which prevents coagulants from mixing properly resulting in low sediment removal rates. This has contributed to the need to shut down the raw water intake works at turbidity greater than 30 NTU. The water then flows to a circular sedimentation tank with a design capacity of 3,890 m3. This tank also has accumulated sediments which are difficult to clean due to the design of the tank, reducing its effective depth from 5.5m to 4.5m so the effective volume of the reservoir is about 3,182 m3.

The current design, condition and operation of the sand filters contribute to their poor performance. Information from NWC on the design of the original filters and their current performance is described as follows: • Filters operate at high overflow rate with high solids loading (12 NTU mean, 4.5

kg/m2.d). • Filtration rate during five-filter operation is 149.3 m/d and 186.6 m/d during four-filter

operation (one out for backwashing). • Backwashing is carried out manually (based on operator experience) and the frequency

depends upon demand; typically every 24 hours during dry weather and every 48 hours during wet.

• Backwashing is done at night at a rate of 0.44m/min (26.4m/h) with two pumps each with a capacity of 5.33m3/min.

• Air scour duration is typically 3 �5 min, flowrate from air scour blowers is 22m/h. • Backwash is conducted with treated water, typically 1min, at 26.5m/h, before the inlet

valve is opened as a sweep for approximately 10 min; thereafter the wash is continued for about 5 min with treated water.

• There is no instrumentation for flow, loss of head, high water level, etc. • The underdrain system consists of pipes with nozzles while the filter media consists of

graded gravel and sand • The grading and depth of the media appear to be incompatible with the filtration duty In order to improve the performance of the filters the existing media must be replaced with new media of appropriate grading and increased bed depth. The backwash pumps and air scour blowers (including associated delivery pipework) need to be changed to increase flow to approximately 35m/h and 55m/h respectively. Refurbishment of the filters would also need to include the header/lateral underdrain system with a standard or proprietary collection system. After filtration, the water is conveyed to the clear wells. Clear well #1 has a capacity of 138 m3 and Clear well #2 has a capacity of 886 m3.

35

Post chlorination dosing ranges from 1.2 to 2.4 mg/L using water from the discharge line from Clear well #2 for mixing. Chlorine is supplied from a 150 pound cylinder. The aim is for water to leave the plant with a residual chlorine level of 2.0 mg/L based on the combination of pre and post chlorination. The existing chlorination system provides effective chlorine contact time for disinfection as there is a chlorine residual of 1.0 to 1.5 mg/L in the water coming off the filters so only a small amount of chlorine needs to be added to the water prior to distribution. Water is discharged at an average rate of 11,365m3/d to the distribution system using two out of four functioning distribution pumps, via 16 and 12 inch diameter mains to the Spanish Town supply area. Water quality assessments carried out at the NWC Spanish Town Water Treatment Plant during 2003 showed that the turbidity of the treated water was generally higher than the required standard and there are regular instances where bacteriological levels were also high in the treated water. The current poor performance of the treatment plant is partly due to ineffective coagulation and settlement before the filters. This is due to a number of factors including non-optimised chemical dosing, in terms of coagulation pH, dose rate and inefficient mixing, as well as short-circuiting in the settlement tanks. The resultant feed to the filters is therefore of poor quality and results in poor performance of the filters, with a final water quality well above 1 NTU. It should be noted that the plant has no sludge dewatering and drying facilities.

36

Figure 11 - Simple Schematic of Spanish Town Water Treatment Plant Process

RAW WATER INTAKE � with 3

pumps Average abstraction: 11,365 � 13,183 m3/d

(2.5 � 2.9 migd) Maximum abstraction:

18,200 m3/d (4 migd)

COAGULATIONFLOCCULATION 74.5m (L) x 38m (W) 5.5m (D)

SEDIMENTATION TANK

30 m dia x 5.5m (D)

PRE-CHLORINATION 150 lbs/day (6 mg/L)

ALUM DOSING300 lbs/day (12 mg/L)

FILTRATION

CLEAR WELL #18m (L) x 6.4m (W) x 2.7m (D)

POST CHLORINATION 30 -60 lbs/day 1.2 � 2.4 mg/L

CLEAR WELL #228.3m (L) x 11.6m (W) x 2.7m (D)

TO DISTRIBUTION SUPPLY 11,365 m3/d (2.5 migd) Only 2 out of 4 distribution pumps operational

Booster pump

KEY Pipeline

Booster pump

Valve Dosing rates for chlorine and alum are based on a flow of 11,365 m3/d

37

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38

5.3 Distribution System

The distribution network in Greater Spanish Town (which comprises the town centre also known as Old Spanish Town and surrounding areas) is rather complicated, consisting of trunk mains and branches to distribution zones which are interconnected to each other. Much of the early system dating back to 1836 is thought to be still included in the distribution network even with the pipe replacement that has taken place over the years. A GIS-based inventory of distribution mains in the Greater Spanish Town area prepared by the NWC identified a total length of 312.6 km in the distribution network as of November 2002. The diameters of the identified mains vary from 1� to 24� and the predominant diameter is 4� which covers 78% of the total length. The inventory classifies the conditions of the mains into �Very Good�, �Good�, �Fair�, �Poor�, �Bad� and �Very Poor�. More than 60% of the mains are classified as �Poor�, �Bad� or �Very Poor�. The records of leak repairs for 1999-2001 by NWC Spanish Town District Office indicate that the number of leaks of diameter 3� or larger mains in Greater Spanish Town accounts for 26% of the total number of leaks. However, the data also shows that the majority of leaks take place in the 2� or smaller diameter category which is typically service pipes and individual connections. The leak repair record by diameter (1999 � 2000) is shown graphically below in Figure 13. NWC has rehabilitated and repaired some of these pipes in their routine maintenance programme but no large scale exercise has been undertaken to resolve all the leaks. Some additional rehabilitation is planned under the KMA Water Supply Project.

Figure 13 - Percentage of Leak Repairs by Diameter Pipe

2.3%23.7%

8.1%

15.8%

50.1%

6" or more3" to 4"1" to 2"3/4"1/2"

Percentage of Leak Repairs by Diameter

Source: National Water Commission

39

5.3.1 Types of pipelines

The present system of water pipelines comprises many different types, due in part to the very old age of the distribution system in Old Spanish Town (town centre) and the repairs done over the years using different types of pipelines. Types of pipes in the distribution system include:

• Cast iron pipes (CIP) • Ductile iron pipes (DIP) • Polyvinyl chloride (PVC) • Asbestos cement (AC)

Some of the trunk distribution pipes in the Old Spanish Town area have non-standard pipe diameters less than 200 mm diameter. Hydraulic analysis taking into consideration future demand in the area suggests that all trunk distribution pipes should have a minimum diameter of 200 mm for optimal operations.

5.3.2 Valves

Some isolation valves on the existing distribution system are very old and some cannot be located as they have been covered by repeated road resurfacing over many years. If there is a defective valve on the distribution system connected to old pipelines, the valve and the pipelines have to be replaced as in many cases the existing pipeline has either disintegrated or is too fragile to accommodate the installation of the new valve. Water hammer is another problem on the distribution system which has weakened pipelines causing repeated ruptures and leaks. This in many cases is due to the absence of sufficient air relief valves on the distribution line.

5.3.3 Aged Mains

Aged mains laid more than 40 years ago are concentrated in the area of Old Spanish Town. Such aged mains would have deteriorated by external corrosion and encrustation resulting in low performance of the distribution network. Even though the leaks in Old Spanish Town are not comparatively large in number, the replacement of the aged mains is a principal requirement for improving the performance of the distribution network in the town centre.

5.3.4 Leakage Problems

Some areas served by the Spanish Town Water Supply system such as Willowdene and neighbouring areas have a high incidence of leakage determined by the frequency of repairs. Willowdene is a housing area approximately 2 to 3 km west of Spanish Town presumed to have been started in around 1960. High incidence of leakage has been quantified as greater than 10 repairs /km/year. The NWC Spanish Town District Office cites the major causes of leaks as external corrosion of pipes

40

due to the high chemical content of the soil. This is said to originate from residual fertilizer used in the past when the area was used as farm lands. Other areas such as Golden Acres and Strathmore Gardens are also affected by the same problem although to a lesser extent in terms of frequency of leaks.

The integrity of some distribution pipelines which have not been supplying water or have been supplying water at low pressures is unknown at this time and the pipelines are therefore not slated for replacement under the KMA Water Supply project. However, it is envisaged that these mains may fail or leak after the implementation of the KMA Water Supply Project which will result in more water being conveyed through these pipes at higher pressures.

5.3.5 Metering

Metering is currently inadequate to accurately determine how much water enters the water supply system and how much is being distributed throughout the supply area. The metering strategy proposed for the NWC�s on-going UfW4 Reduction Programme is summarised as follows:

i. The first level of metering is based on source meters and a small number of key trunk main/supply meters, which simply split the Spanish Town Distribution System into 2 discrete zones. These zones are known as Water-Into-Supply Zones or WIS Zones.

ii. The second level of metering, sub-divides the large WIS Zone into several

relatively straightforward trunk main systems, denominated as Supply Zones or SZs. There are 8 SZs in Spanish Town.

iii. The third level of metering divides the SZs into operationally more

manageable areas known as District Metered Areas or DMAs. The precise measurement of UfW at the DMA level, enables accurate prioritization and focusing of UfW Reduction resources. 21 DMAs in Spanish Town have been identified, and meter sites located.

The DMAs provide the UfW Control Team with a powerful operational tool for indicating increased UfW and quickly homing in on its cause. The un-metered boundaries to DMAs need to be closed by a cordon of �Keep-Shut� valves (KSVs), most of which will need to be installed for that purpose. The Supply Zones serve both to monitor the integrity of the DMAs and their meters, as well as to monitor the trunk main network that supplies them. The WIS Zones provide an accurate measurement of the total supply to the major supply areas and to enable the overall performance of the UfW Reduction and Control Programme to be properly audited.

4 UfW � Unaccounted for Water

41

The metering strategy provides for permanent metering installations (as opposed to the use of portable meters used temporarily at a variety of locations). The KMA Water Supply project proposes the following improvements to the metering which currently exists:

i. Use of full bore electromagnetic meters for reliability and accuracy, and to enhance accuracy, meters should be sized to maintain velocities through the meter at the highest levels consistent with acceptable head losses through the overall installation.

ii. Source meter installations (and uni-directional distribution meter installations) shall allow for straight pipe of a length of five (5) times the meter diameter immediately upstream and of length two (2) times downstream. Distribution meter installations where flow reversal may occur shall have straight pipe of length of 5 times meter diameter both upstream and downstream

iii. Use of meters, data logging and communication equipment fully powered by long-life lithium batteries (rather than relying on the unreliable electricity power supply) at all sites providing a central monitoring capability.

iv. Use of meter sensors of proven quality for direct burial

v. Meter installations at certain water production facilities require the meters to be installed in a �u� tube arrangement � to ensure that the meter would be guaranteed to run full.

5.3.6 Pumping Stations

Relift pumping stations and booster stations are important infrastructure within the water supply area. Relift pumping stations take treated water from atmospheric pressure and pump to a higher elevation while booster pumping stations add energy to the water as it flows through the main. Within the Spanish Town Water Supply System, the Yang�s Well is not functioning in accordance with the original design requirements and need to be rehabilitated as follows: • replace existing pumps and motors • provide spare pump if non-existent • concrete repair • general electrical, building and civil site work • refurbishment of valve, switchgear

42

5.3.7 Distribution Storage

Reservoirs and storage tanks are valuable assets in the water distribution system. Their main function is to store treated water near demand zones. During periods of peak consumption, they stabilize the supply of water to users at an adequate pressure while during sudden shutdown of supply, they can provide emergency water supply. Through the use of reservoirs, more efficient operations are also expected. This is because pumping storage can be conducted during the night when the pumping costs are generally lower. Similar to other assets of the distribution system, reservoirs require periodic maintenance to function at the intended level of service, however periodic maintenance had fallen behind for the reservoirs in the supply area. There are 9 distribution storage tanks (listed below) in the supply areas and none are in use due to water supply limitations such as insufficient quantity and inadequate pressure. 1. Spanish Town Hospital Tank 2. Sligoville Road (Mt. View Estate) 3. Windsor Heights Tank #1 4. Windsor Heights Tank #2 5. Angels Tank 6. Fraser�s Content Tank 7. Green Acres Tank 8. Twickenham Park Reservoir 9. Patton Park

All tanks need repairs but some tanks may be retired and taken out of the distribution system rather than being repaired based on the hydraulic design for the new KMA Water Supply System. The typical repairs required include:

• reconstruction of base foundation • sandblasting and repainting of steel works (for steel tanks) • concrete repair works • installation of altitude valves • refurbishing of pipes and valves • general site works • replacement of float valves • interior waterproofing (using epoxy resins or other equivalent) and

sterilization • improved roofing condition • replacement of access ladders (exterior and interior) • repair of access hatch • foundation grouting • provision of roof vents

43

6.0 EXISTING MONITORING REGIME

6.1 Ministry of Health (MOH) Water Quality Monitoring and Surveillance

The MOH has overall responsibility for the monitoring and surveillance activities with regard to potable water. The Ministry�s roles and responsibilities include:

• Developing policies, standards, guidelines and regulations • Serving as the central point for the collection collation and analysis of water quality

data from providers of public water supply (National Water Commission (NWC), Parish Councils (PC) and private entities).

• Monitoring drinking water, wastewater and recreational water quality. • Making recommendations to relevant agencies and clients. • Auditing water and wastewater treatment systems and laboratories. • Providing laboratory services for testing and supporting health departments

monitoring activities. Currently the MOH utilises the following Regulatory Framework as the basis for their surveillance activities.

• The Public Health Act, 1974. • The Public Health (Nuisance) Regulations, 1995 • The Interim Jamaica Criteria (IJAM) - specifies water quality contamination limits

and sampling frequency for water at source and in the distribution system. • The WHO guidelines on drinking water also set out the requirements for potable

water. The Drinking Water Monitoring Programme comprises:

• Systems designs, evaluation and approval. which is done by the Environmental Health Unit in the Ministry of Health

• Watershed monitoring to identify possible sources of water pollution done by the Water Resources Authority and the National Environment and Planning Agency

• Compliance inspection of water treatment plant and distribution systems done by the Ministry of Health and the National Environment and Planning Agency

• Chemical and physical assessment of raw and treated water, including packaged/bottled water (Nitrate, Phosphates, Alkalinity, Chlorides, pH, Turbidity, etc.)

• Biological assessment of raw and treated water • Chlorine Residual testing at treatment plants and wells throughout distribution

systems For a raw water source to be used for potable water supply, it must meet the physical chemical and biological requirements as set out in the IJAM Criteria. All raw water sources used for potable water supply are to be monitored twice yearly by the MOH as well as the provider, the National Water Commission (NWC). Water is monitored at the treatment plant as well as at designated sampling points within the distribution system for residual chlorine, physical and bacteriological quality by the MOH.

44

The Ministry of Health through the parish health departments conducts surveillance sampling for these parameters as set out in the IJAM Criteria. Providers are also required to do their own monitoring, keep records of results, and submit results to the health department on a monthly basis as well as make records available to health department officials on request. The IJAM treated water quality monitoring requirements for NWC�s treated water leaving the plant and in the distribution system are outlined in Tables 8 and 9. Table 8 indicates the minimum monitoring requirements for treated water leaving the treatment plant just prior to its entering the system. The Spanish Town Water Treatment Plant minimum monitoring requirements for water leaving the plant should be in accordance with the population range greater than 10,000. Table 9 presents the number of samples to be taken by the NWC in the distribution system. The minimum number of samples is given for the largest number in the population range to which it refers. The minimum monitoring requirements for water in the distribution system should be in accordance with the population range greater than 100,000.

Table 8 - IJAM Water Quality Monitoring Requirements for NWC (Leaving the Treatment Plant)

MAXIMUM INTERVAL POPULATION RANGE (l ,000) Residual Chlorine Bacteriological > 10 Each Shift Daily 5 -10 Daily Weekly 1 - 5 Daily Twice / month < 1 Weekly Monthly

Table 9 � IJAM Water Quality Monitoring Requirements for NWC (Distribution System)

Chlorine Residual Bacteriological Population Served (1,000)

Max. Interval (Days)

Min. # Monthly

Max. Interval (Days)

Min. # Samples Monthly

Standards I - JAM I - JAM I-JAM I - JAM

> 100 1 / 5,000 1/5,000 50 - 100 - 1 /2,500 - 1/5,000 20 - 50 - 1 /2,500 - 1/5,000 15 - 20 1 30 4 8 10-15 2 20 6 6 5 - 10 3 10 10 4 1 - 5 5 6 14 3 <1 14 3 30 1

45

In addition to the samples taken by the NWC, the MOH is required to collect samples in order to provide surveillance. The MOH determines residual chlorine and collects bacteriological samples in the proportion to those collected by the NWC as outlined in Table 10.

Table 10 - Ministry of Health Sampling Requirements

OWNER MOH SAMPLING AS % OF OWNER SAMPLING Distribution System Source

NWC 33⅓ Samples as if % for distribution systems applied.

The Ministry of Health recommends that a chemical analysis be done of the drinking water at least twice annually. Table 11 shows a list of the chemicals that should be analysed at least twice per year.

Table 11 � MOH Recommended Test Parameters for Physical and Chemical Analysis of Drinking Water

Chemical & Physical Characteristics

Chemical Analysis Inorganic

Chemical Analysis- Organic Pesticides

Aluminium Arsenic Acrylamide Chloride Cadmium Aldrin and Dieldrin Colour Chromium Benzene Hardness Cyanide Chlordane Hydrogen Sulphide Fluoride 2,4-D Iron Lead DDT (total isomer) Manganese Mercury (total) 1,2 - dichloroethane pH Nitrate - NO3- 1,1 - dichloroethane Sodium Copper Hexachlorobenzene Sulphate Selenium Lindane Taste and Odour Uranium Methoxychlor Turbidity Penta -Chloorphenol Zinc

6.2 Ministry of Health Field testing Kits In recent years a number of field-testing kits have been made available to Ministry of Health Water Quality Officers in the parishes. These kits enable officers to carry out on-the-spot tests which allow for quick water quality assessment. Tests that are done include:

• Total Coliform • pH • Total Dissolved Solids

46

Microbiological tests done using these kits supplement testing of microbiological samples sent to the National Laboratory which is done on a less frequent basis (maximum one sample/plant/month). 6.3 Laboratory Auditing The Environmental Health Laboratory of the National Public Health Laboratory established a programme about one (1) year ago to audit local laboratories that analyse water for health-based parameters at least once a year. Due to the recent commencement of this programme not all labs have been audited to date. The Environmental Health Laboratory of the National Public Health Laboratory is presently going through an accreditation process (to ISO 17025 standards) with the local accreditation body which falls under the Ministry of Commerce and Technology. This body gets its license from the International Organisation for Standardization (ISO). 6.4 National Water Commission �In-Plant� Water Quality Monitoring The raw water from the Rio Cobre is routinely monitored for pH and turbidity while the treated water is monitored for pH, turbidity, residual chlorine and coliform bacteria. The treated water from the wells is routinely monitored for coliform bacteria and residual chlorine and the raw water is monitored for chloride, nitrate, and other parameters depending on the chemical quality of the water. Every one or two years, a total chemical analysis is done on the wells. Table 12 summarises the water quality monitoring regime inside the treatment plant that the NWC has in place for the Spanish Town Water Treatment Plant and associated wells. There is a separate monitoring regime for the distribution system as described in Section 6.1, Table 9.

Table 12 - NWC Water Quality Monitoring Regime at the Treatment Plant by Operator

Location Parameter Monitored

Frequency Limits

SPANISH TOWN WATER TREATMENT PLANT 1. Raw water intake

pumps Flow rate Once per day at the

same time usually 7:00 a.m.

2. Raw water line Turbidity Every hour If 30 NTU or greater the intake is shut off

3. Raw water line pH Every hour Helps to determine the required alum dosing levels

4. Settling Tanks #1 Chlorine Random

47

Location Parameter Monitored

Frequency Limits

& #2 5. Prior to filtration Chlorine Every 2 hours 2.0 mg/L 6. Distribution line

leaving plant Chlorine Every 2 hours If less than or greater

than 2.0 mg/L chlorine dosing is adjusted

7. Distribution line leaving plant

Turbidity Every hour <3NTU

8. Distribution line leaving plant

Pressure Every hour 12�dia. 25psi 16� dia. 30psi

9. Treatment system Flows Continuous Digital sensors throughout treatment plant (not working)

WELLS Chlorine Twice per day 2.0 mg/L Pressure Twice per day 20 � 60 psi

10. Distribution pipeline inside well station Flows Once per day Record spot reading

6.5 Water Quality Monitoring and Surveillance System Weaknesses

A review of the drinking water quality monitoring programme of the Ministry of Health was done by PAHO in March 2005 which found some deficiencies in the water quality monitoring and surveillance programme. These included: • Lack of a comprehensive water quality surveillance plan which addresses the rationale

for the ratio of quantity of sampling versus population served, frequency of sampling, integrity of samples, location of sampling points, frequency and scope of sanitary surveys reporting and coordination mechanism between the Parish Councils, NWC and the Ministry of Health

• The need to decentralise the water quality monitoring programme to ensure that sample integrity is preserved

• Need for the regular review of the IJAM criteria for drinking water quality with reference to WHO standards

• Need for improved reporting format and data management • No accreditation of laboratories conducting analyses of water quality parameters • Absence of a documented programme for pesticides testing in raw water for those

sources considered to be at risk

The Ministry of Health has already started to address all of these weaknesses in order to improve their surveillance programme.

48

7.0 EARLY WARNING SYSTEM FOR WATER QUALITY

The Early Warning System is defined as speedy identification of a problem that may affect the water quality and the necessary steps to be taken as a response mechanism. This system was developed by a number of agencies (Ministry of Health, National Water Commission and the Water Resources Authority) and has been in effect for a number of years.

The Early Warning System (E.W.S.) will respond to the following conditions: 1. Low/ No Residual Chlorine 2. Presence of Faecal Coliform 3. Poor Raw Water Quality 4. Presence of Toxic (and other prohibited) Substances 5. Incidents, spills and disasters.

The information presented below on the early warning system for water quality was taken from a Ministry of Health document which was developed by a number of stakeholders in 2005 and consists of the following components: 1. Low / No Residual Chlorine

There is an established set of points along the distribution system where the Public Health Inspector in charge of water quality and personnel from National Water Commission (NWC)/Parish Council take samples, as per Interim Jamaica Criteria (I-Jam). Should the residual chlorine of less than 0.2mg/l be detected the following procedure should be adhered to:

a. Check a minimum of five (5) additional points on the system upstream and downstream of the original sampling point to determine the extent of the low chlorine residual problem.

b. Take water samples for bacteriological analysis at same points as indicated above. Analysis should be done either by way of field kit or if unavailable at the appropriate laboratory.

c. If residual chlorine tests confirm low or no residual chlorine, alert the treatment plant that low residual problem has been detected. The Water Quality Officer should check the chlorination records and have the operators check the chlorination system.

d. Alert Parish Officer or NWC/Parish Council of the findings, and advise that samples for bacteriological analysis had been taken. Request solution to problem and improvement of water quality in 24 hours.

e. Serve a notice instructing the relevant operation to effect improvement of the water quality within 24 hours.

f. If Low / No Residual Chlorine problem is not resolved in 24 hours, the Parish Health Department will issue an advisory to the public indicating the following: • The specific water supply is unsafe for domestic use. The entire distribution system

should be identified. • The methods of treating the water to make it safe / potable. • The duration of the advisory.

2. Faecal Coliform in Water

In the event that Faecal Coliform is detected in water by way of bacteriological analysis then:

49

a. Medical Officer (Health) (MO(H), Chief Public Health Inspector (CPHI)or Public Health Inspector (PHI) in charge of Water Quality should advise Water Quality Parish / Regional Officers from NWC / Parish Council by facsimile / telephone, and in writing of results and request: • Historical data re: the supply including test results and time • Improvement of water quality within 24 hours.

b. PHI in charge of water quality should collect for bacteriological analysis a minimum of five (5) samples of the supply and distribution system based on agreed network samples approach. The original sampling point should be included. The sampling procedure should be as per distribution system protocol.

c. If at least one (1) of the batch of five (5) samples taken show the presence of faecal coliform and there is residual chlorine, the MO(H), CPHI or PHI in charge of Water Quality should serve a notice on the Parish Water Quality Officer of the NWC or Parish Council, specifying findings and indicating that corrections are required within 24 hours and failure to do so may result in legal action being taken and an advisory will be issued.

d. If �2c� is not obeyed an advisory is issued as per �1f� and legal action is pursued as needed.

e. The advisory issued will remain in force until improvement is achieved. The PHI in charge of Water Quality should carry out consistent sampling / testing in order to verify improvement. No water supply should be activated or reactivated without written consent of the MO(H). If any water supply is de-activated, the MO(H) should be informed in writing. Also, no water supply should be declared safe without the written consent of the MO(H).

3. Poor Raw Water Quality If there is high turbidity (that is) in excess of five (5) nephelametric turbidity units (NTU) or five (5) Jackson Turbidity Units (JTU)

a. The Water Treatment Plant Operator (WTP) and the PHI in charge of Water Quality should inform the MO(H) or CPHI immediately.

b. Samples / tests of the raw and treated water are to be taken and submitted for immediate analysis.

c. If there is high turbidity and any sample is faecal coliform positive, the Parish / Regional Water Quality Office for the NWC / Parish Council should be informed by fax / telephone and in writing of the findings and told that an advisory will be issued immediately.

d. MO(H) should issue an advisory as per �1f� e. No water supply should be activated or reactivated without written consent of the

MO(H). If any water supply is de-activated, the MO(H) should be informed in writing. Also, no water supply should be declared safe without the written consent of the MO(H).

4. Presence of Toxic (and other prohibited) Substances

a. If any water sample analysis shows the presence of toxic (or other prohibited)

substances of any level higher than guidelines values then the Parish / Regional Water Quality Officer for the NWC / Parish Council should be informed by fax or

50

phone of the findings and that an advisory will be issued immediately. The specific details should be communicated by letter afterwards.

b. MO(H) should issue an advisory as per �1f� c. No water supply should be activated or reactivated without written consent of the

MO(H). If any water supply is de-activated, the MO(H) should be informed in writing. Also, no water supply should be declared safe without the written consent of the MO(H).

5. Incidents, Spills and Disasters In the event of spills, incidents and disasters the NWC, Parish Council, Fire Department, ODPEM should inform the Local Health Department and the appropriate action taken. 8.0 HAZARDS AND THREATS The likelihood and severity categories used to assess the hazards affecting the Spanish Town Water Supply System were developed based on a WHO template. However, minor modifications were made to the definitions of the severity categories so that they were appropriate to the system being assessed. Table 13 shows the Likelihood and Severity Categories used to determine the risk level.

Table 13 - Likelihood and Severity Categories

Level Descriptor Definition Score Likelihood categories A Almost certain Almost every day 5B Likely Two to four times per month 4C Moderately likely Monthly 3D Unlikely Once or twice per year 2E Rare Once every 5 years or longer 1

Severity categories 1 Catastrophic Potentially lethal 52 Major 43 Moderate Potentially harmful 34 Minor 25 Insignificant No impact or not detectable 1

Physical, chemical and biological hazards in the water supply system from the catchment to the consumer were considered by the Task Force members based on expertise and experience as well as observations by the consultant/coordinator from site visits conducted in January 2007, the details of which are outlined at Appendix 4. Table 14 shows the Risk Severity Matrix for Ranking Risks and Table 15 shows the actual scores assigned to the hazards. The scoring exercise was done collectively by members of the Task Force and risks were categorised as insignificant, minor, moderate major or catastrophic.

51

Table 14 - Risk Scoring Matrix for Ranking Risks

Severity of consequences

Insignificant Minor Moderate Major CatastrophicLevel Likelihood 1 2 3 4 5A Almost certain 5 10 15 20 25B Likely 4 8 12 16 20C Moderately likely 3 6 9 12 15D Unlikely 2 4 6 8 10E Rare 1 2 3 4 5

KEY Low 1 to 4 Moderate 5 to 12 High 15 to 16 Very High 20 Catastrophic 25

52

Tab

le 1

5 - H

azar

d A

naly

sis a

nd R

isk

Cha

ract

eris

atio

n fo

r th

e Sp

anis

h T

own

Wat

er S

uppl

y Sy

stem

Haz

ard

Ty

pes

Sym

bol

1 P

hysi

cal

Sed

imen

ts, T

urbi

dity

, Col

our,

Odo

urP

2

Che

mic

al

Pes

ticid

es, D

isin

fect

ing

agen

ts,

C

3 B

iolo

gica

l B

acte

ria, p

aras

ites,

viru

ses

B

H

azar

d H

azar

d ev

ent/s

ourc

e/ca

use

Like

lihoo

d Se

verit

y Sc

ore

Ris

k

C

ATC

HM

ENT

& IN

TAK

E - R

IVER

1

B, C

, P

Agr

o-in

dust

rial e

fflue

nt

4 3

12

Mod

erat

e 2

C, P

B

auxi

te/a

lum

ina

plan

t effl

uent

2

3 6

Mod

erat

e

3 B

, C

Info

rmal

sol

id w

aste

dum

p 1

1 1

Low

4 B

, C, P

D

umpi

ng o

f sol

id w

aste

into

rive

rs d

ue to

infre

quen

t or n

on-e

xist

ent

garb

age

colle

ctio

n in

wat

ersh

ed

5 2

10

Mod

erat

e

5 B

, C, P

In

form

al re

side

ntia

l set

tlem

ents

alo

ng c

anal

prio

r to

inta

ke w

ithou

t se

wag

e tre

atm

ent &

dis

posa

l sys

tem

s 5

4 20

V

ery

high

6 B

, C, P

In

form

al c

omm

erci

al a

ctiv

ities

e.g

. car

was

hes,

coo

k sh

ops,

ga

rage

s, a

long

can

al p

rior t

o in

take

with

out w

aste

wat

er

treat

men

t/dis

posa

l sys

tem

s

5 4

20

Ver

y hi

gh

7 B

, C

Dis

posa

l of e

fflue

nt in

to ri

vers

by

Ces

spoo

l em

ptie

rs

3 4

12

Mod

erat

e

8 C

P

estic

ide

resi

dues

in s

torm

wat

er ru

n-of

f fro

m fa

rmin

g ac

tiviti

es

with

in th

e w

ater

shed

3

4 12

M

oder

ate

9 P

H

igh

sedi

men

ts in

sto

rm w

ater

run-

off f

rom

cle

ar c

uttin

g of

land

as

soci

ated

with

farm

ing

and

othe

r con

stru

ctio

n ac

tiviti

es a

nd s

and

min

ing

with

in th

e w

ater

shed

4 2

8 M

oder

ate

10

B, C

S

ewag

e ef

fluen

t fro

m (a

ppro

ved)

sys

tem

s w

hich

util

ise

on-s

ite

abso

rptio

n pi

ts

2 1

2 Lo

w

11

B, C

, P

Sec

urity

risk

- C

anal

con

veyi

ng ra

w w

ater

vul

nera

ble

to

unsc

rupu

lous

act

ions

whi

ch c

an c

onta

min

ate

wat

er q

ualit

y 2

5 10

M

oder

ate

12

C

Pre

-chl

orin

atio

n of

raw

wat

er w

ith e

leva

ted

orga

nics

form

ing

carc

inog

enic

by-

prod

ucts

5

3 15

H

igh

13

B, C

Lo

w ri

ver f

low

s du

ring

drou

ght

2 3

6 M

oder

ate

CAT

CH

MEN

T &

INTA

KE

- WEL

L

14

B

, C

Sew

age

efflu

ent,

parti

cula

rly n

itrat

es, f

rom

(app

rove

d) s

yste

ms

whi

ch u

tilis

e on

-site

abs

orpt

ion

pits

5

2 10

M

oder

ate

53

H

azar

d H

azar

d ev

ent/s

ourc

e/ca

use

Like

lihoo

d Se

verit

y Sc

ore

Ris

k 15

B

, C

Info

rmal

resi

dent

ial s

ettle

men

ts w

ithou

t sew

age

treat

men

t &

disp

osal

sys

tem

s up

gra

dien

t of g

roun

d w

ater

reso

urce

s 5

2 10

M

oder

ate

TREA

TMEN

T - S

URF

ACE

WAT

ER

16

P

Hig

h tu

rbid

ity o

f raw

wat

er c

ausi

ng s

ilt to

acc

umul

ate

in re

serv

oir

limiti

ng th

e qu

antit

y of

wat

er tr

eate

d an

d re

duci

ng th

e tre

ated

wat

er

qual

ity

4 3

12

Mod

erat

e

17

B, C

, P

No

back

up

pow

er s

uppl

y 3

2 6

Mod

erat

e 18

C

U

ncer

tain

raw

wat

er q

ualit

y du

e to

wid

e ra

nge

of p

ossi

ble

cont

amin

ants

(pes

ticid

es, i

ndus

trial

effl

uent

s et

c.)

3 3

9 M

oder

ate

19

B

Und

er d

osin

g of

chl

orin

e 4

4 16

H

igh

20

C

Ove

r dos

ing

of c

hlor

ine

1 4

4 Lo

w

21

P, C

In

effe

ctiv

e flo

ccul

atio

n du

e to

des

ign

limita

tions

suc

h as

in

frast

ruct

ure

and

pH c

ontro

l 5

1 5

Mod

erat

e

22

B, P

In

effe

ctiv

e fil

tratio

n an

d ba

ckw

ashi

ng d

ue to

age

of s

yste

m a

nd

desi

gn li

mita

tions

4

3 12

M

oder

ate

23

B

Che

ck v

alve

s on

dis

tribu

tion

pum

ps- a

bsen

t or i

neffe

ctiv

e 1

3 3

Low

24

B

B

oost

er P

ump

(to fi

lters

) fai

lure

2

3 6

Mod

erat

e

TR

EATM

ENT

- WEL

LS

25

B

No

chlo

rinat

ion

due

to th

eft o

f chl

orin

e ta

nks

4 5

20

Ver

y hi

gh

26

B, C

U

nder

dos

ing

of c

hlor

ine

4 4

16

Hig

h 27

C

O

ver d

osin

g of

chl

orin

e 1

4 4

Low

28

B

, C, P

Ta

mpe

ring

due

to u

nres

trict

ed a

cces

s &

ille

gal c

onne

ctio

ns to

raw

an

d tre

ated

wat

er p

ipes

at w

ell f

acili

ties

5 2

10

Mod

erat

e

29

B, C

, P

No

back

up

pow

er s

uppl

y

4 3

12

Mod

erat

e

30

B, C

, P

Non

sta

ndar

d sy

stem

des

ign

and

com

pone

nts

caus

es d

elay

s in

ad

dres

sing

mai

nten

ance

issu

es a

s it

is n

ot c

ost e

ffect

ive

to s

tock

w

ide

varie

ty o

f lar

ge c

ostly

spa

re p

arts

3 2

6 M

oder

ate

31

B, C

In

effe

ctiv

e an

d in

effic

ient

dis

infe

ctio

n du

e to

the

abse

nce

of

chlo

rine

cont

act c

ham

bers

5

3 15

H

igh

STO

RAG

E - T

REAT

MEN

T PL

ANT

32

B, C

, P

Insu

ffici

ent r

eser

voir

stor

age

to m

eet p

eak

dem

and

5

3 15

H

igh

33

B, C

, P

Non

rem

oval

of s

ilt fr

om s

edim

enta

tion

basi

n in

a ti

mel

y m

anne

r du

e to

des

ign

limita

tions

3

2 6

Mod

erat

e

DIS

TRIB

UTIO

N S

YSTE

M

54

H

azar

d H

azar

d ev

ent/s

ourc

e/ca

use

Like

lihoo

d Se

verit

y Sc

ore

Ris

k 34

B

, C, P

Li

mite

d us

e of

exi

stin

g di

strib

utio

n st

orag

e ta

nks

and

an in

abilit

y to

pr

ovid

e co

nsum

ers

with

min

imum

of 6

hou

rs w

ater

in c

ase

of a

pl

ant s

hut d

own

5 3

15

Hig

h

35

B, C

, P

Illeg

al c

onne

ctio

ns to

dis

tribu

tion

syst

em c

ontri

butin

g to

the

high

%

of u

nacc

ount

ed fo

r wat

er

5 3

15

Hig

h

36

B, C

, P

Unm

eter

ed w

ater

sup

ply

(soc

ial w

ater

suc

h as

sta

ndpi

pes)

and

m

alfu

nctio

ning

met

ers

cont

ribut

ing

to th

e hi

gh %

of u

nacc

ount

ed

for w

ater

5 3

15

Hig

h

37

B, C

, P

Leak

s on

trun

k m

ain

and

dist

ribut

ion

syst

em, o

ld p

ipes

in s

ome

area

s co

ntrib

utin

g to

the

high

% o

f una

ccou

nted

for w

ater

5

3 15

H

igh

38

B, C

, P

Dem

and

exce

edin

g su

pply

- in

adeq

uate

sup

ply

cove

rage

; uns

erve

d co

mm

uniti

es; n

ew re

side

ntia

l dev

elop

men

ts; n

o ch

ange

in q

uant

ity

of w

ater

sup

plie

d

5 3

15

Hig

h

39

B, C

, P

Low

sys

tem

pre

ssur

e if

one

supp

ly s

ourc

e is

out

of s

ervi

ce

5 3

15

Hig

h 40

B

, C, P

S

ome

loca

tion

of v

alve

s un

know

n du

e to

abs

ence

of d

raw

ings

and

be

ing

care

less

ly c

over

ed d

urin

g ro

adw

orks

5

2 10

M

oder

ate

41

B, C

, P

Des

truct

ion

of d

istri

butio

n sy

stem

com

pone

nts

due

to n

eglig

ence

of

othe

r util

ities

e.g

. JP

SC

o., C

able

& W

irele

ss a

nd C

able

ser

vice

pr

ovid

ers

5 2

10

Mod

erat

e

42

B, C

, P

Dam

age

to w

ater

pip

elin

es a

nd d

omes

tic p

lum

bing

infra

stru

ctur

e du

e to

abs

ence

of a

ir re

lief v

alve

s 5

2 10

M

oder

ate

43

B, C

, P

Che

ck v

alve

s ho

useh

old

- abs

ent o

r ine

ffect

ive

5 3

15

Hig

h

44

B, C

, P

Dea

d en

ds o

n di

strib

utio

n lin

es c

ausi

ng s

tagn

atio

n in

the

wat

er li

ne

2 2

4 Lo

w

9.0

CO

NT

RO

L M

EA

SUR

ES

AN

D P

RIO

RIT

IES

Con

trol m

easu

res w

ere

iden

tifie

d fo

r all

haza

rds

iden

tifie

d in

Tab

le 1

5 an

d th

ese

are

pres

ente

d at

App

endi

x 5.

The

risk

s wer

e pr

iorit

ised

with

1 b

eing

the

high

est a

nd 4

bei

ng th

e lo

wes

t. T

he re

spon

sibl

e ag

enci

es fo

r im

plem

entin

g th

e co

ntro

l mea

sure

s to

man

age

the

risks

w

ere

iden

tifie

d as

wel

l as t

he o

rgan

isatio

n or

per

son(

s) re

spon

sibl

e fo

r mon

itorin

g th

e co

ntro

l mea

sure

, the

dev

iatio

n pr

oced

ure

or

corr

ectiv

e ac

tion

if th

e co

ntro

l mea

sure

is n

ot e

ffect

ive,

ver

ifica

tion

proc

edur

e an

d re

cord

s whe

re a

pplic

able

.

Tabl

e 16

bel

ow p

rese

nts t

he p

oten

tial h

azar

ds th

at w

ere

cons

ider

ed h

igh

risk

(by

the

Task

For

ce) w

ith sc

ores

of 3

and

4 a

nd p

riorit

y ra

tings

of 2

and

1 re

spec

tivel

y.

55

Tab

le 1

6 - C

ontr

ol M

easu

res f

or H

azar

ds Id

entif

ied

for

Prio

rity

1 &

2 R

isks

Haz

ard

even

t/sou

rce/

ca

use

Con

trol

Mea

sure

s Pr

iorit

y R

espo

nsib

le

Agen

cy

Tim

e Fr

ame

Mon

itorin

g

CAT

CH

MEN

T &

INTA

KE

- RIV

ER

1.

In

form

al re

side

ntia

l se

ttlem

ents

alo

ng c

anal

pr

ior t

o in

take

with

out

sew

age

treat

men

t &

disp

osal

sys

tem

s

Impl

emen

t an

educ

atio

n ca

mpa

ign

abou

t sa

nita

tion,

pro

vide

infra

stru

ctur

e to

pr

even

t was

te fr

om re

achi

ng th

e ca

nal

1 H

ealth

D

pt./M

OH

, P

aris

h C

ounc

il,

Squ

atte

r M

gt. U

nit,

Min

. of

Hou

sing

&

NIC

Sta

rt no

la

ter t

han

Mar

ch

2008

-

Cen

tral H

ealth

Com

mitt

ee, W

ater

Q

ualit

y S

ubco

mm

ittee

will

ass

ess

stat

us in

Jun

e 20

08

2.

Mai

ntai

n bu

ffer z

one

arou

nd c

anal

Hea

lth

Dpt

./MO

H,

Par

ish

Cou

ncil,

S

quat

ter

Mgt

. Uni

t, M

in. o

f H

ousi

ng &

N

IC

Ong

oing

C

entra

l Hea

lth C

omm

ittee

, Wat

er

Qua

lity

Sub

com

mitt

ee w

ill a

sses

s st

atus

in J

une

2008

3.

Upg

rade

d W

TP u

nder

KM

A W

ater

Sup

ply

Pro

ject

to e

ffect

ivel

y tre

at w

ater

with

co

ntam

inan

ts

N

WC

4th

Q

2008

W

ater

Qua

lity

Insp

ecto

r (H

ealth

D

epar

tmen

t) ch

ecks

on

treat

men

t pl

ant o

pera

tions

at l

east

onc

e pe

r m

onth

4.

Req

uest

s fo

r new

con

nect

ions

are

sc

reen

ed to

ens

ure

that

NW

C d

oes

not

prov

ide

conn

ectio

ns to

info

rmal

set

tlers

N

WC

O

ngoi

ng

Sen

ior C

usto

mer

Rel

atio

ns

Man

ager

ass

esse

s ap

plic

atio

ns

5.

In

form

al c

omm

erci

al

activ

ities

e.g

. car

was

hes,

co

ok s

hops

, gar

ages

, al

ong

cana

l prio

r to

inta

ke

with

out w

aste

wat

er

treat

men

t/dis

posa

l

Impl

emen

t an

educ

atio

n ca

mpa

ign

abou

t sa

nita

tion,

pro

vide

infra

stru

ctur

e to

pr

even

t was

te fr

om re

achi

ng th

e ca

nal

1 H

ealth

D

pt./M

OH

, P

aris

h C

ounc

il,

Squ

atte

r M

gt. U

nit,

Sta

rt no

la

ter t

han

Mar

ch

2008

Cen

tral H

ealth

Com

mitt

ee, W

ater

Q

ualit

y S

ubco

mm

ittee

will

ass

ess

stat

us in

Jun

e 20

08

5 NSW

MA

� N

atio

nal S

olid

Was

te M

anag

emen

t Aut

horit

y

56

H

azar

d ev

ent/s

ourc

e/

caus

e C

ontr

ol M

easu

res

Prio

rity

Res

pons

ible

Ag

ency

Ti

me

Fram

e M

onito

ring

syst

ems

M

in. o

f H

ousi

ng &

N

IC

6.

Mai

ntai

n bu

ffer z

one

arou

nd c

anal

H

ealth

D

pt./M

OH

, P

aris

h C

ounc

il,

Squ

atte

r M

gt. U

nit,

Min

. of

Hou

sing

&

NIC

Ong

oing

C

entra

l Hea

lth C

omm

ittee

, Wat

er

Qua

lity

Sub

com

mitt

ee w

ill a

sses

s st

atus

in J

une

2008

7.

Upg

rade

d W

TP u

nder

KM

A W

ater

Sup

ply

Pro

ject

to e

ffect

ivel

y tre

at w

ater

with

co

ntam

inan

ts

N

WC

4th

Q

2008

W

ater

Qua

lity

Insp

ecto

r (H

ealth

D

epar

tmen

t) ch

ecks

on

treat

men

t pl

ant o

pera

tions

at l

east

onc

e pe

r m

onth

8.

R

eque

sts

for n

ew c

onne

ctio

ns a

re

scre

ened

to e

nsur

e th

at N

WC

doe

s no

t pr

ovid

e co

nnec

tions

to in

form

al s

ettle

rs

N

WC

O

ngoi

ng

Sen

ior C

usto

mer

Rel

atio

ns

Man

ager

ass

esse

s ap

plic

atio

ns

9.

P

re-c

hlor

inat

ion

of ra

w

wat

er w

ith e

leva

ted

orga

nics

form

ing

carc

inog

enic

by-

prod

ucts

Test

trea

ted

wat

er in

the

dist

ribut

ion

syst

em to

det

erm

ine

the

by p

rodu

cts

form

ed a

nd c

ondu

ct a

loca

l ris

k as

sess

men

t of t

he h

ealth

impl

icat

ions

of

usin

g ch

lorin

e fo

r dis

infe

ctio

n of

drin

king

w

ater

2 N

WC

4th

Q

2008

C

entra

l Hea

lth C

omm

ittee

, Wat

er

Qua

lity

Sub

com

mitt

ee to

ass

ess

stat

us in

Dec

embe

r 200

8

TREA

TMEN

T - S

URF

ACE

WAT

ER

10.

U

nder

dos

ing

of c

hlor

ine

New

chl

orin

atio

n sy

stem

des

igne

d fo

r up

grad

ed W

TP u

nder

KM

A W

ater

Sup

ply

Pro

ject

2 N

WC

4th

Q

2008

W

ater

Qua

lity

Insp

ecto

r (H

ealth

D

epar

tmen

t) ch

ecks

on

treat

men

t pl

ant o

pera

tions

at l

east

onc

e pe

r m

onth

11

.

M

onito

r res

idua

l chl

orin

e th

roug

hout

tre

atm

ent p

roce

ss

N

WC

O

ngoi

ng

NW

C T

/P o

pera

tor m

onito

rs C

l 2 re

sidu

al le

vels

hou

rly a

t the

pla

nt

TREA

TMEN

T - W

ELLS

12

.

No

chlo

rinat

ion

due

to

thef

t of c

hlor

ine

cylin

ders

N

ew c

hlor

ine

hand

ling

proc

edur

es s

ince

Ja

nuar

y 20

07; s

ecur

ity g

uard

s on

site

at

larg

e in

stal

latio

ns, i

nsta

llatio

n of

gril

ls &

do

ors,

ope

rato

rs to

vis

it si

te a

t lea

st 2

tim

es p

er s

hift,

trac

king

sys

tem

in p

lace

1 N

WC

O

ngoi

ng

Wat

er P

rodu

ctio

n M

anag

er tr

acks

m

ovem

ent o

f cyl

inde

rs w

eekl

y

57

H

azar

d ev

ent/s

ourc

e/

caus

e C

ontr

ol M

easu

res

Prio

rity

Res

pons

ible

Ag

ency

Ti

me

Fram

e M

onito

ring

for m

ovem

ent &

loca

tion

of c

ylin

ders

; C

omm

unity

aw

aren

ess

prog

ram

me

13.

U

nder

dos

ing

of c

hlor

ine

New

chl

orin

atio

n sy

stem

des

igne

d fo

r w

ells

2

NW

C

4th Q

20

08

Wat

er Q

ualit

y In

spec

tor (

Hea

lth

Dep

artm

ent)

chec

ks o

n w

ells

at

leas

t onc

e pe

r mon

th

14.

In

effe

ctiv

e an

d in

effic

ient

di

sinf

ectio

n du

e to

the

abse

nce

of c

hlor

ine

cont

act c

ham

bers

To b

e ad

dres

sed

unde

r the

KM

A W

ater

S

uppl

y pr

ojec

t 2

NW

C

4th Q

20

08

Wat

er Q

ualit

y In

spec

tor (

Hea

lth

Dep

artm

ent)

chec

ks o

n w

ells

at

leas

t onc

e pe

r mon

th

STO

RAG

E - T

REAT

MEN

T PL

ANT

15.

In

suffi

cien

t res

ervo

ir st

orag

e to

mee

t pea

k de

man

d

Will

be a

ddre

ssed

in th

e de

sign

of t

he

upgr

aded

wat

er tr

eatm

ent p

lant

und

er th

e

KM

A W

ater

Sup

ply

Pro

ject

by

inst

allin

g ne

w c

lear

wat

er re

serv

oirs

;

2 N

WC

4th

Q

2008

W

ater

Qua

lity

Insp

ecto

r (H

ealth

D

epar

tmen

t) ch

ecks

on

treat

men

t pl

ant a

t lea

st o

nce

per m

onth

DIS

TRIB

UTIO

N S

YSTE

M

16.

Li

mite

d us

e of

exi

stin

g di

strib

utio

n st

orag

e ta

nks

and

an in

abili

ty to

pro

vide

co

nsum

ers

with

min

imum

of

6 h

ours

wat

er in

cas

e of

pla

nt s

hut d

own

Will

be a

ddre

ssed

in th

e de

sign

of t

he

upgr

aded

wat

er tr

eatm

ent p

lant

und

er th

e

KM

A W

ater

Sup

ply

Pro

ject

by

inst

allin

g ne

w d

istri

butio

n st

orag

e ta

nks

2 N

WC

O

ngoi

ng

Fiel

d O

pera

tor m

onito

rs d

istri

butio

n sy

stem

17.

Ens

ure

good

ope

ratio

nal p

ract

ices

to

utili

se d

istri

butio

n st

orag

e w

hen

inst

alle

d

NW

C

Ong

oing

Fi

eld

Ope

rato

r mon

itors

dis

tribu

tion

syst

em

18.

Ill

egal

con

nect

ions

to

dist

ribut

ion

syst

em

cont

ribut

ing

to th

e hi

gh %

of

una

ccou

nted

for w

ater

(1) R

educ

e pr

essu

re o

n di

strib

utio

n sy

stem

sup

plyi

ng "R

ed A

reas

"; co

mm

unity

out

reac

h pr

ogra

mm

es;

2 (1

) NW

C

Ong

oing

Fi

eld

Ope

rato

r mon

itors

dis

tribu

tion

syst

em

19.

(2) E

nfor

ce th

e la

w

(2

) Par

ish

Cou

ncil

&

NW

C

Ong

oing

20.

U

nmet

ered

wat

er s

uppl

y (s

ocia

l wat

er s

uch

as

stan

dpip

es) a

nd

mal

func

tioni

ng m

eter

s

cont

ribut

ing

to th

e hi

gh %

of

una

ccou

nted

for w

ater

(1) R

atio

nalis

e G

over

nmen

t po

licy

re

soci

al w

ater

; 2

(1) M

inis

try

of W

ater

; N

EP

A,

Min

istry

of

Hea

lth, N

WC

Mar

ch

2008

C

entra

l Hea

lth C

omm

ittee

, Wat

er

Qua

lity

Sub

com

mitt

ee w

ill a

sses

s st

atus

in J

une

2008

58

H

azar

d ev

ent/s

ourc

e/

caus

e C

ontr

ol M

easu

res

Prio

rity

Res

pons

ible

Ag

ency

Ti

me

Fram

e M

onito

ring

21.

(2) E

nsur

e th

at e

xist

ing

met

ers

are

func

tiona

l and

met

er u

nmet

ered

cu

stom

ers

(2

) NW

C

Ong

oing

Fi

eld

oper

atio

ns p

erso

nnel

/ met

er

read

ers

to re

port

on n

on-fu

nctio

nal

or m

issi

ng m

eter

s

22.

Le

aks

on tr

unk

mai

n an

d di

strib

utio

n sy

stem

, old

pi

pes

in s

ome

area

s co

ntrib

utin

g to

the

high

%

of u

nacc

ount

ed fo

r wat

er

Con

tinue

una

ccou

nted

for w

ater

con

trol

prog

ram

me

incl

udin

g le

ak d

etec

tion

&

repa

ir, p

ress

ure

zoni

ng, f

low

con

trol;

ensu

re g

ood

oper

atio

nal n

etw

ork;

KM

A

proj

ect w

ill in

stal

l new

dis

tribu

tion

mai

ns

2 N

WC

O

ngoi

ng

Non

Rev

enue

Wat

er (N

RW

) C

oord

inat

or �

Eas

tern

Id

entif

ies

prob

lem

s to

be

addr

esse

d by

Fie

ld O

pera

tions

Man

ager

23.

D

eman

d ex

ceed

ing

supp

ly -

inad

equa

te

supp

ly c

over

age;

un

serv

ed c

omm

uniti

es;

new

resi

dent

ial

deve

lopm

ents

; no

chan

ge

in q

uant

ity o

f wat

er

supp

lied

Will

be a

ddre

ssed

in th

e de

sign

of t

he

upgr

aded

wat

er tr

eatm

ent p

lant

und

er th

e

KM

A W

ater

Sup

ply

Pro

ject

by

the

inst

alla

tion

of n

ew d

istri

butio

n m

ains

, m

ore

treat

ed w

ater

sto

rage

and

incr

ease

d pr

oduc

tion

at w

ells

up

to s

usta

inab

le

limits

; coo

rdin

atio

n be

twee

n de

velo

pmen

t pl

anne

rs a

nd w

ater

sup

ply

syst

em

oper

ator

s; p

rere

quis

ite fo

r dev

elop

men

t ap

prov

al to

con

firm

the

avai

labi

lity

of

wat

er; p

rom

ote

dem

and

side

m

anag

emen

t thr

ough

pol

icy

and

regu

latio

ns

2 M

inis

try o

f W

ater

, M

inis

try o

f Lo

cal

Gov

ernm

ent;

St.

Cat

herin

e P

aris

h C

ounc

il,

NW

C

4th Q

20

08

Cen

tral H

ealth

Com

mitt

ee, W

ater

Q

ualit

y S

ubco

mm

ittee

will

ass

ess

stat

us in

Jun

e 20

08

24.

Lo

w s

yste

m p

ress

ure

if on

e su

pply

sou

rce

is o

ut

of s

ervi

ce

Will

be a

ddre

ssed

in th

e de

sign

of t

he

upgr

aded

wat

er tr

eatm

ent p

lant

und

er th

e

KM

A W

ater

Sup

ply

Pro

ject

; max

imiz

e in

terc

onne

ctiv

ity o

n th

e di

strib

utio

n sy

stem

, ens

ure

good

ope

ratio

nal a

nd

mai

nten

ance

pro

toco

ls; s

ecur

e va

lves

and

ac

cess

poi

nts

on d

istri

butio

n sy

stem

,

2 N

WC

4th

Q

2008

C

entra

l Hea

lth C

omm

ittee

, Wat

er

Qua

lity

Sub

com

mitt

ee w

ill a

sses

s st

atus

in J

une

2008

25.

Inst

all p

ress

ure

gaug

es u

nder

KM

A

proj

ect

NW

C

4th Q

20

08

Cen

tral H

ealth

Com

mitt

ee, W

ater

Q

ualit

y S

ubco

mm

ittee

will

ass

ess

stat

us in

Jun

e 20

08

26.

C

heck

val

ves

hous

ehol

d -

abse

nt o

r ine

ffect

ive

Rep

lace

inef

fect

ive

chec

k va

lves

and

in

stal

l mis

sing

che

ck v

alve

s; h

ave

suffi

cien

t uni

form

ity w

ithin

sys

tem

so

that

la

rge

varie

ty o

f diff

eren

t typ

es o

f pum

ps

do n

ot h

ave

to b

e ke

pt in

inve

ntor

y

2 N

WC

&

Par

ish

Cou

ncil

Ong

oing

W

ater

Pro

duct

ion

Man

ager

and

Fi

eld

Ope

ratio

ns p

erso

nnel

trac

ks

perc

enta

ge o

f hou

seho

lds

with

out

chec

k va

lves

as

wel

l as

hous

ehol

ds

with

def

ectiv

e ch

eck

valv

es

59

H

azar

d ev

ent/s

ourc

e/

caus

e C

ontr

ol M

easu

res

Prio

rity

Res

pons

ible

Ag

ency

Ti

me

Fram

e M

onito

ring

New

pol

icy

unde

r con

side

ratio

n to

inst

all

chec

k va

lves

on

hous

ehol

d co

nnec

tions

. K

MA

pro

ject

to a

ddre

ss to

a li

mite

d ex

tent

SUR

VEIL

LAN

CE

SYST

EM

27.

La

ck o

f a c

ompr

ehen

sive

w

ater

qua

lity

surv

eilla

nce

plan

Com

preh

ensi

ve w

ater

qua

lity

surv

eilla

nce

plan

whi

ch a

ddre

sses

the

ratio

nale

for t

he

ratio

of q

uant

ity o

f sam

plin

g ve

rsus

po

pula

tion

serv

ed, f

requ

ency

of s

ampl

ing,

in

tegr

ity o

f sam

ples

, loc

atio

n of

sam

plin

g po

ints

, fre

quen

cy a

nd s

cope

of s

anita

ry

surv

eys

repo

rting

and

coo

rdin

atio

n m

echa

nism

bet

wee

n th

e P

aris

h C

ounc

ils,

NW

C a

nd th

e M

inis

try o

f Hea

lth

1 M

OH

M

arch

20

08

Cen

tral H

ealth

Com

mitt

ee, W

ater

Q

ualit

y S

ubco

mm

ittee

will

ass

ess

in

June

200

8

28.

O

utda

ted

drin

king

wat

er

qual

ity s

tand

ards

R

evie

w &

revi

se IJ

AM

crit

eria

for d

rinki

ng

wat

er q

ualit

y w

ith re

fere

nce

to W

HO

st

anda

rds

and

esta

blis

h re

gim

e fo

r re

gula

r rev

iew

1 M

OH

M

arch

20

08

Cen

tral H

ealth

Com

mitt

ee, W

ater

Q

ualit

y S

ubco

mm

ittee

will

ass

ess

in

June

200

8

29.

In

effic

ient

dat

a m

anag

emen

t Im

prov

e re

porti

ng fo

rmat

and

dat

a m

anag

emen

t by

deve

lopi

ng a

n E

nviro

nmen

tal d

atab

ase

1 M

OH

Ja

nuar

y 20

08

Cen

tral H

ealth

Com

mitt

ee, W

ater

Q

ualit

y S

ubco

mm

ittee

will

ass

ess

in

Mar

ch 2

008

30.

La

bora

torie

s co

nduc

ting

anal

yses

of w

ater

qua

lity

para

met

ers

not

accr

edite

d

Onl

y us

e ac

cred

ited

labo

rato

ries

for

cond

uctin

g w

ater

qua

lity

anal

yses

A

udit

of p

rivat

e la

bs �

thos

e th

at M

OH

ap

prov

al c

an b

e us

ed u

ltim

atel

y w

ant t

o ac

cred

it la

bs

1 M

OH

20

08-

2009

C

entra

l Hea

lth C

omm

ittee

, Wat

er

Qua

lity

Sub

com

mitt

ee w

ill a

sses

s an

nual

ly

60

10.0 OPERATIONAL MONITORING The Task Force identified the Critical Control Points (CCPs) on the NWC unit processes at the treatment plant and wells. The aim was to focus on those critical steps in the process areas that if not controlled could pose a risk to the health and safety. Table 17 presents the CCPs along with the:

• Critical limits • Monitoring procedures • Deviation Procedures • Verification procedures • Records

Generally operators of the treatment plant err on the side of caution by shutting down the plant in the event of high turbidity and/or the likelihood of other contaminants as indicated in the table.

61

Tab

le 1

7 �

CC

Ps o

n W

ater

Tre

atm

ent P

roce

ss

CC

P C

ritic

al L

imits

M

onito

ring

Proc

edur

es

Dev

iatio

n Pr

oced

ures

Ve

rific

atio

n Pr

oced

ures

R

ecor

ds

SPAN

ISH

TO

WN

WAT

ER T

REA

TMEN

T PL

ANT

CC

P1

- In

take

w

orks

• 20

NTU

Tu

rbid

ity

(Exi

stin

g)

• 15

0 N

TU

Turb

idity

(N

ew)

• pH

6.5

- 8.5

• O

pera

tor G

uide

d by

S

tand

ard

Ope

ratin

g P

roce

dure

s (S

OP

s)

• O

pera

tor m

onito

rs p

H

usin

g pH

met

er a

nd

turb

idity

usi

ng tu

rbid

ity

met

er e

very

hou

r

Shu

t dow

n in

take

wor

ks

whe

n (a

) pH

is tr

endi

ng

(afte

r thr

ee c

onse

cutiv

e re

adin

gs) t

owar

ds th

e up

per o

r low

er li

mits

an

d (b

) tur

bidi

ty

reac

hes

limit

• C

alib

rate

pH

met

ers

in

buffe

r sol

utio

n ev

ery

mon

th

• C

alib

rate

turb

idity

met

er in

st

anda

rd s

uspe

nsio

n •

Wat

er P

rodu

ctio

n Te

am

Lead

er c

heck

s re

cord

s ev

ery

wee

k, ra

ndom

ob

serv

atio

n of

ope

ratio

ns,

annu

al a

udits

• H

ourly

logs

of p

H a

nd

turb

idity

•

Cal

ibra

tion

reco

rds

for p

H

and

turb

idity

met

ers

•

Non

-con

form

ance

s an

d co

rrec

tive

actio

ns

• R

ecor

ds o

f Tea

m L

eade

r au

dits

•

Aver

age

abst

ract

ion:

11

,365

�

13,1

83 m

3/d

(2.5

� 2

.9

mig

d)

• O

pera

tor G

uide

d by

S

tand

ard

Ope

ratin

g P

roce

dure

s (S

OP

s)

• O

pera

tor m

onito

rs

flow

rate

onc

e pe

r day

at

the

sam

e tim

e, u

sual

ly

7:00

a.m

.

Che

ck in

take

scr

eens

to

see

if th

ey a

re

bloc

ked

or if

can

al is

fil

led

with

deb

ris

Shu

t dow

n pl

ant a

nd

imm

edia

tely

ass

ign

wat

er m

an to

cle

an

cana

l and

inta

ke

scre

ens

• W

ater

Pro

duct

ion

Team

Le

ader

che

cks

to s

ee th

at

scre

ens

and

cana

l are

pr

oper

ly c

lean

ed b

efor

e pl

ant i

s pu

t bac

k in

to

serv

ice

• W

TP o

pera

tor l

ogs

•

Che

mic

al

anal

ysis

of

wat

er

• N

WC

lab

cond

ucts

twic

e pe

r yea

r ful

l che

mic

al

anal

ysis

of r

aw w

ater

in

acco

rdan

ce w

ith s

tand

ard

test

met

hods

Inve

stig

ate

sour

ce o

f ch

emic

als

dete

cted

ab

ove

allo

wab

le li

mits

an

d ta

ke n

eces

sary

ac

tion

to re

duce

or

elim

inat

e so

urce

A

djus

t tre

atm

ent

proc

ess

if po

ssib

le to

ad

dres

s pr

oble

m

• C

alib

rate

test

equ

ipm

ent

•

Wat

er q

ualit

y re

sults

•

Cal

ibra

tion

resu

lts

CC

P2

- P

re-

chlo

rinat

ion

2 m

g/L

resi

dual

on

filte

r •

Ope

rato

r Gui

ded

by

Sta

ndar

d O

pera

ting

Pro

cedu

res

(SO

Ps)

•

Ope

rato

r che

cks

ever

y ho

ur u

sing

chl

orin

e co

mpa

rato

r

• M

anua

lly a

djus

t ch

lorin

e fe

ed ra

te

or w

ater

inflo

w ra

te

• P

rope

rly c

lean

ed C

hlor

ine

com

para

tors

•

Che

ck c

ompa

rato

r aga

inst

(in

tern

atio

nal)

stan

dard

so

lutio

n (tr

acea

ble

to

Fran

ce)

• W

ater

Pro

duct

ion

Team

Le

ader

che

cks

reco

rds

• H

ourly

logs

of r

esid

ual

chlo

rine

leve

ls

• N

on-c

onfo

rman

ces

and

corr

ectiv

e ac

tions

•

Cal

ibra

tion

reco

rds

•

Log

of c

hlor

ine

feed

rate

s •

Rec

ords

of T

eam

Lea

der

audi

ts

62

CC

P C

ritic

al L

imits

M

onito

ring

Proc

edur

es

Dev

iatio

n Pr

oced

ures

Ve

rific

atio

n Pr

oced

ures

R

ecor

ds

ever

y w

eek,

rand

om

obse

rvat

ion

of o

pera

tions

, an

nual

aud

its

CC

P3

- A

lum

do

sing

&

mix

ing

• D

osed

at 1

5 m

g/L

- 50

mg/

L

• Tu

rbid

ity a

t C

lear

wel

l <1

NTU

•

MO

H

Turb

idity

</

=5N

TU

• O

pera

tor G

uide

d by

S

tand

ard

Ope

ratin

g P

roce

dure

s (S

OP

s)

• O

pera

tor d

oses

with

in

reco

mm

ende

d ra

nge

•

Ope

rato

r che

cks

ever

y ot

her h

our u

sing

turb

idity

m

eter

afte

r filt

ratio

n

• O

pera

tor c

ondu

cts

a nu

mbe

r of s

yste

m

chec

ks -

Inta

ke

turb

idity

, cle

arw

ell

turb

idity

& w

ater

le

vel,

alum

feed

ra

te fr

om p

revi

ous

shift

•

Shu

t off

boos

ter

pum

p an

d ba

ckw

ash

filte

r(s)

•

Man

ually

adj

ust

Alu

m fe

ed ra

te o

r w

ater

inflo

w ra

te

• C

alib

rate

turb

idity

met

er in

st

anda

rd s

uspe

nsio

n

• W

ater

Pro

duct

ion

Team

Le

ader

che

cks

reco

rds

ever

y w

eek,

rand

om

obse

rvat

ion

of o

pera

tions

, an

nual

aud

its

• Lo

gs o

f alu

m fe

ed ra

tes

•

Logs

of t

urbi

dity

read

ings

•

Non

-con

form

ance

s an

d co

rrec

tive

actio

ns

• C

alib

ratio

n re

cord

s

• R

ecor

ds o

f Tea

m L

eade

r au

dits

2 m

g/L

resi

dual

in

dist

ribut

ion

line

• O

pera

tor G

uide

d by

S

tand

ard

Ope

ratin

g P

roce

dure

s (S

OP

s)

• O

pera

tor c

heck

s di

strib

utio

n lin

e at

poi

nt o

f le

avin

g th

e pl

ant e

very

ho

ur u

sing

chl

orin

e co

mpa

rato

r •

Min

istry

of H

ealth

che

cks

dist

ribut

ion

line

at le

ast

once

per

mon

th

Man

ually

adj

ust

chlo

rine

feed

rate

(afte

r fil

tratio

n) o

r wat

er in

flow

ra

te

• P

rope

rly c

lean

ed c

hlor

ine

com

para

tors

•

Wat

er P

rodu

ctio

n Te

am

Lead

er c

heck

s re

cord

s ev

ery

wee

k, ra

ndom

ob

serv

atio

n of

ope

ratio

ns

• C

heck

com

para

tor a

gain

st

(inte

rnat

iona

l) st

anda

rd

solu

tion

(trac

eabl

e to

Fr

ance

)

• H

ourly

logs

of r

esid

ual

chlo

rine

leve

ls

(dis

tribu

tion

line)

•

Non

-con

form

ance

s an

d co

rrec

tive

actio

ns

• C

alib

ratio

n re

cord

s

• Lo

g of

chl

orin

e fe

ed ra

tes

•

Rec

ords

of T

eam

Lea

der

audi

ts

• M

OH

resu

lts

CC

P5

- P

ost-

chlo

rinat

ion

• To

tal c

olifo

rm

- 0

MP

N/1

00m

L •

E. C

oli -

0

MP

N/1

00m

L

• O

pera

tor g

uide

d by

SO

Ps

chec

k ba

cter

ia d

aily

•

Min

istry

of H

ealth

che

cks

dist

ribut

ion

line

at p

oint

of

leav

ing

the

plan

t at l

east

on

ce p

er m

onth

Act

ivat

e ea

rly w

arni

ng

syst

em (R

efer

to

Sec

tion

7 of

Wat

er

Saf

ety

Pla

n)

• C

alib

rate

test

equ

ipm

ent

• N

atio

nal P

ublic

Hea

lth L

ab

to c

ondu

ct a

nnua

l aud

it of

la

bs d

oing

wat

er q

ualit

y an

alys

is

• Te

st e

quip

men

t ca

libra

tion

reco

rds

• R

ecor

ds o

f res

ults

•

Res

ults

of l

ab a

udits

•

Non

-con

form

ance

s an

d co

rrec

tive

actio

ns

• M

OH

resu

lts

Dis

tribu

tion

line

• P

lant

flow

s •

Aver

age

flow

rate

s 11

,365

�

• C

ontin

uous

read

out o

f pl

ant f

low

s at

est

ablis

hed

poin

ts th

roug

hout

sys

tem

Trou

bles

hoot

sys

tem

to

dete

rmin

e ca

use

of

prob

lem

in a

ccor

danc

e w

ith S

OP,

e.g

. pum

p

• C

alib

rate

test

equ

ipm

ent

• D

aily

logs

•

Rec

ords

ver

ifyin

g th

at th

e di

gita

l sen

sors

are

w

orki

ng c

orre

ctly

63

CC

P C

ritic

al L

imits

M

onito

ring

Proc

edur

es

Dev

iatio

n Pr

oced

ures

Ve

rific

atio

n Pr

oced

ures

R

ecor

ds

13,1

83 m

3/d

(2.5

� 2

.9

mig

d)

failu

res

•

12�d

ia. 2

5psi

•

16� d

ia. 3

0psi

•

Ope

rato

r Gui

ded

by

Sta

ndar

d O

pera

ting

Pro

cedu

res

(SO

Ps)

•

Ope

rato

r che

cks

pres

sure

on

the

dist

ribut

ion

lines

le

avin

g th

e pl

ant e

very

ho

ur

Trou

bles

hoot

sys

tem

to

dete

rmin

e ca

use

of

prob

lem

in a

ccor

danc

e w

ith S

OP

• C

alib

rate

test

equ

ipm

ent

• D

aily

logs

•

Cal

ibra

tion

reco

rds

for

pres

sure

gau

ge

WEL

LS

2 m

g/L

resi

dual

•

Ope

rato

r Gui

ded

by

Sta

ndar

d O

pera

ting

Pro

cedu

res

(SO

Ps)

•

Ope

rato

r che

cks

twic

e pe

r day

usi

ng c

hlor

ine

com

para

tor

• M

inis

try o

f Hea

lth c

heck

s di

strib

utio

n lin

e at

leas

t on

ce p

er m

onth

• M

anua

lly a

djus

t ch

lorin

e fe

ed ra

te

or w

ater

inflo

w ra

te

• P

rope

rly c

lean

ed C

hlor

ine

com

para

tors

•

Che

ck c

ompa

rato

r aga

inst

(in

tern

atio

nal)

stan

dard

so

lutio

n (tr

acea

ble

to

Fran

ce)

• W

ater

Pro

duct

ion

Team

Le

ader

che

cks

reco

rds

ever

y w

eek,

rand

om

obse

rvat

ion

of o

pera

tions

, an

nual

aud

its

• D

aily

logs

of r

esid

ual

chlo

rine

leve

ls

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64

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65

11.0 VERIFICATION & AUDIT The Treatment Plant and wells are operated by plant and field operators respectively, in accordance with NWC Standard Operating Procedures. The operators continuously monitor the water quality and service quality (pressures and flows) throughout the treatment process at the treatment plant and wells, as outlined in Table 17, to verify that the water quality targets and the OUR Quality of Service Standards are being met. The Water Production Team Leader has responsibility for conducting random checks of the operations by observing the operators while they do their work. The Water Production Team Leader also conducts annual audits of the operating system. The Water Quality Inspector for the Health Department of the Parish Council does independent assessments of the operating procedures at the plant and distribution system at least once per month and notifies the Water Production Team Leader of any concerns in writing. In addition to the monitoring done by the Water Quality Inspector for the Health Department of the Parish Council, the Ministry of Health has responsibility for auditing the quality of the water supplied by the Spanish Town Treatment Plant and associated wells. Audits will be conducted at least annually and a report written and submitted to the National Water Commission. The NWC will review and update the Water Safety Plan annually and the implementation of the Water Safety Plan will be audited annually by a suitably qualified external auditor appointed by the Central Health Committee, Water Quality Subcommittee. The Office of Utilities Regulation (OUR) assessment of the Quality of Service Standards will also be used as a measure of customer confidence and satisfaction with the service provided by the NWC. 12.0 THE KMA PROJECT There are plans currently underway to rehabilitate the water supply system for the Kingston Metropolitan Area (KMA) which includes the parishes of Kingston, St. Andrew and St. Catherine. This means that the Spanish Town Water Supply system will benefit from improvements under this project which is being funded by the Japan Bank for International Cooperation (JBIC) and implemented by the NWC. Lot 1 of the KMA project which incorporates the rehabilitation of the Spanish Town Water Treatment Plant started in mid February 2007 and is expected to last 18 months. Completion is therefore anticipated in mid August 2008. The rehabilitation objective for the Spanish Town Water Treatment Plant (STWTP) is to provide for reliable production of 18,200m3/d (4 migd) of potable water meeting NWC standards at all times - irrespective of the turbidity of the available raw water. This is to be accomplished under the KMA project primarily by addressing treatment issues as follows:

• construction of a new reinforced concrete flocculation/sedimentation facility complete with coagulant preparation and dosing facilities � for the use of powdered poly aluminum chloride as the coagulant of choice for high turbidity (up to 150 NTU) � and associated

66

sludge drying beds. The area occupied by the existing Sedimentation Basin #1 will be restructured to form appropriate foundations for these new facilities.

• modification of the existing rapid gravity filter facility to improve backwash arrangements � inclusive of the construction of an elevated backwash tank to replace the existing back wash pumping arrangements � and the refurbishment of the filter machinery generally

In addition, the three raw water pump units and their associated switchgear will be replaced, a new rising main laid to the inlet of the new sedimentation facility and appropriate modifications made to the existing main switchgear to accommodate the electrical requirements of the new works. The works will allow the retirement of the existing pre-chlorine facility (the building to be retained for general storage purposes), the intermediate �clarified water� low lift pump facility and Sedimentation Basins 2 through 4. Under a separate part of the project, the modifications of the overall STWTP installation will include:

• the replacement of the existing high lift pumping plant with intermediate head units to lift production into twin above ground 8000 m3 clear water service reservoirs to be constructed on the site of the old sedimentation basins 3 and 4 across Job Lane,

• upgrading chlorination arrangements and revising the main power arrangements (with standby power generation facilities) and

• providing a new final distribution pumping plant (adjacent to the new reservoirs).

67

APPENDIX 1 � OFFICE OF UTILITIES REGULATION QUALITY OF SERVICE

STANDARDS FOR NWC Overall Standards A. Drinking Water Quality Objective: To ensure that the water supplied is always of the highest quality and fit for consumption. WOS1 - Testing samples for impurities Definition: It is the duty of the NWC to make periodical analyses of water samples to ensure quality. NWC is required to take any water samples necessary for analysis, at both source and distribution points, and check if the samples are within the standards specified by The Ministry of Health (MOH) Environment Control Division. 100% of all samples should meet the required standards. The NWC must also comply with the sampling regime established by MOH. B. Water Pressure Objective: NWC is required to maintain a pressure in the pipes that will ensure that customers receive an adequate supply of water. WOS2 - Minimum/Maximum water pressure Definition: NWC should ensure that the pressure of water supplied to consumers is within the range of 20 to 60 psi at all times. During drought conditions, NWC should repeatedly advise customers of areas affected by low pressure or no supply. This standard will be waived for the period that the drought persists. The NWC must notify the Office of the existence of drought conditions, etc. C. Reliability of Supply Objective: To minimize and manage interruptions to supply for planned and unplanned (emergencies) work effectively and allowing customers to plan for such events. WOS3 - Notice of planned work Definition: NWC is required to inform customers at least 24 hours beforehand when there is need to turn off the water supply for more than 4 hours and the duration of the outage. NWC also has to give at least 12 hours notice of work that is expected to last between 1 and 4 hours. The public is to be advised and apologies issued in the appropriate medium if the NWC cannot restore water supply at the specified time. Notification of outage, in the first instance, should be by means to enable the most effective communication to the affected customers. The required notification time should be given for at least 90% of planned interruptions, (for work of duration not more than 4 hours as well as those of duration more than 4 hours). 1 Unless otherwise stated, references to days are �calendar days�.

68

WOS4 - Restoration after emergency lock-off Definition: If there is a burst water main or other emergency, NWC may not be able to warn customers that there will be water lock-offs. NWC should, however, inform customers by making announcements on at least one radio station within 2 hours after interruption. NWC will be required to provide an alternative supply of water if necessary (trucking water to affected areas), and to restore supply within 24 or 48 hours (for urban or rural customers, respectively). NWC must inform customers of unplanned lock-offs (within 2 hours after interruption) at least 90% of the time. Similarly, supply must be restored within 24 or 48 hours (for urban and rural areas) at least 90% of the time. Alternative supply of water, if necessary, must be provided to at least 95% of affected customers. D. Sewerage Objective: To ensure acceptable effluent quality and minimize flooding from sewers. WOS5 - Correction of sewerage problems Definition: NWC must correct all problems, which result in flooding from sewers, within 24 hours of being informed. WOS6 - Testing effluent samples to verify that plant are operating in compliance with NEPA requirements Definition: NWC is required to periodically take any effluent samples necessary for analysis and check if the samples are within the standards specified by The National Environment and Planning Agency (NEPA). 99% of all samples must meet the required standards. E. Water Meters Objective: To ensure that customers are promptly provided with a properly functioning meter. WOS7 - Changing meters Definition: If NWC needs to change a customer's meter, they are required to leave written details of the date of the change, meter readings (of old and new meters) on the day and serial numbers of the new meter at all times. Guaranteed Standards A. Access Objective: To ensure that new customers are promptly connected to NWC's system. WGS1 - Connection to Supply Definition: NWC is required to connect all new customers, where water supply is available at the property boundary, within 10 working days after signing the contract for connection.

69

Guarantee: If NWC fails to connect a customer within the specified period, NWC will be liable to compensate the customer after a claim is made. B. Delivery of Bills Objective: To ensure that new customers receive first bill, in a timely manner. WGS2 - Issue of First Bill Definition: NWC must issue (print and mail) a bill to a new customer within 48 days after connection. Guarantee: If NWC fails to issue a bill within the specified period, NWC will be liable to compensate the customer after a claim is made. C. Appointments Objective: To minimize the inconvenience to customers of having to wait for NWC's representatives to attend appointments. WGS3 - Keeping appointments Definition: NWC has a responsibility to satisfy a customer�s request for a representative to visit the customer's premises to deal with an identifiable problem. Appointments should be made with NWC (and its field officers) for either morning (9:00am to 12:00pm) or afternoon (12:00pm to 5:00pm). NWC must guarantee to keep all appointments or to notify the customer prior to the appointed time, if an emergency prevents them from keeping the appointment. If upon arrival at premises, the customer has already left, the field officer should leave details, including time of visit, meter reading and number and contact number, on a door hanger. If customer cannot be contacted, the NWC should notify him/her within 5 days and advise of new appointment within 10 days. Guarantee: If for any reason NWC does not keep an agreed appointment or does not give notice of a change, NWC will be liable to compensate the customer after a claim is made. If the customer does not keep the appointment, he/she will not be entitled to payment on the subsequent rescheduled appointment. D. Complaints Objective: To ensure that, customers' complaints (written, by telephone or in person) are dealt with promptly and satisfactorily by NWC. WGS4 - Response to complaints not related to billing (Complaints not related to billing include, faulty meters, low pressure, poor water quality) Definition: If a complaint is made in writing to the NWC, the NWC must acknowledge the complaint 5 working days after receipt of complaint (by dispatching letter and any other mode of communication). It should also undertake, in the response, its intent to conclude its investigation and reply within 30 working days of the receipt of the complaint. NWC is required to take details of complaints made by telephone or in person, at the time of the call or visit. If the complaint requires investigation, conclusion of investigation as well as response to customer should be within 30 working days of receipt of complaint.

70

Guarantee: If NWC does not make the necessary response within the specified time, it will be liable to compensate the customer after a claim is made. WGS5 - Response to complaints about billing matters Definition: NWC is required to acknowledge complaint within 5 working days and reply to all complaints whether written or by phone regarding bills within 30 working days of receiving the inquiry. Guarantee: If NWC does no make the necessary response within the specified time, it will be liable to compensate the customer after a claim is made. E. Account status Objective: To ensure that a customer moving from a premises receives bill for relevant consumption. WGS6 - Account status request Definition: If a customer is moving and requests an account status and/or service to cease, NWC is required to read the customer's meter on the day the customer is moving, if on a working day, as long as (5) working days notice of the move is given to NWC. If the customer is moving on a weekend, NWC should read the meter within two (2) days of the move. NWC is also required to provide the relevant bill within 15 working days of the customer's moving. Guarantee: If NWC fails to meet this standard it will be liable to compensate the customer after a claim is made. F. Water Meters WGS7 - Meter installation Objective: To ensure that customers are promptly provided with properly functioning meters. Definition: NWC is required to fit a meter, where an un-metered customer requests one, within 30 working days of receiving the customer's order. If, for some reason, the NWC is unable to meet the request, the NWC should so advise the customer and make a commitment as to when the meter will be provided. In these circumstances, the NWC must automatically make the compensatory payment. Should the NWC not meet this commitment, it constitutes a further breach of the standard and the customer will be eligible for a compensatory payment. Guarantee: If the NWC fails to meet the above standard, it will be liable to compensate the customer after a claim is made. WGS8 - Repair or replacement of faulty meters Objective: To ensure that meters are functioning properly to assure the integrity of bills tendered by the NWC. Definition: If a customer's meter is verified by the NWC as faulty, the NWC will repair or replace it within 40 working days of being first informed of defect by the customer, or within 40 working days after detection by NWC if the fault was discovered by NWC.

71

Guarantee: If NWC fails to meet this standard, it will be liable to compensate the customer after a claim is made. WGS9 - Meter reading Objective: To minimize the number of estimated bills issued by the NWC. Definition: NWC has the responsibility to provide at least one bill every two months and will guarantee to read customers' meters at least once every two months as long as it can be accessed. (NWC should make arrangements to relocate inaccessible meters) Guarantee: If NWC fails to meet this standard, it will be liable to compensate the customer after a claim is made. G. Reconnection Objective: To encourage prompt reconnection of customers after payment of overdue amounts WGS10- Reconnection after payment of overdue amounts Definition: NWC is required to reconnect customers, whose supply has been locked off for debt and who have settled their accounts, within 24 or 48 hours (for urban or rural customers, respectively) after debt settlement. This standard does not apply in those circumstances where the supply has been illegally reconnected and the NWC has subsequently removed all infrastructures. In these circumstances a request for reconnection will be treated as a new connection and the WGS 1 would apply. Guarantee: If NWC fails to reconnect customers within the specified time, it will be liable to compensate the customer after a claim is made. H. Compensation Objective: To ensure that the value of the compensation is not undermined by late receipt of payment. WGS11 - Payment of Compensation Definition: NWC has 60 days after claim is received to process and make payment due under the Guaranteed Standards scheme. Customer must make claim within 2 billing periods or 60 days (whichever is longer) of the perceived breach. Guarantee: If NWC fails to make a compensatory payment within the specified time it will constitute a breach of the guaranteed standard and makes the customer eligible for compensatory payment. If the payment due under a particular standard is not paid within the specified period, the NWC is liable to customers after claim is made. This will repeat itself for subsequent periods until payment is made. Breach of the individual standards will, however, attract only one payment

72

APPENDIX 2 � ACTIVITY/RESPONSIBILITY MATRIX

ACTIVITY ORGANISATION RESPONSIBLE

DEFINE STUDY AREA 1.

Define Study Area • Review what predefined area known as Spanish Town

encompasses based on information from the Parish Council • Obtain a map of Spanish Town from the Parish Council

Catherine Parish Council

• Obtain maps of watershed and areas served by the Spanish Town Water Treatment Plant

NWC

DESCRIPTION OF WATER SUPPLY SYSTEM � From catchment and wells to distribution system. Information to include: • Population served (current & projected) • Communities served • Number of metered customers • Water rates • Average water consumption (per capita per day) • Social water/non-revenue water consumption • Plant capacity (current and future) • Well abstraction rates(current and future) • Type of service provided (home, yard, standpipe) • Population unserved • Storage capacity (raw and potable water) • Demand vs. supply data ( including seasonal variations) • Reliability of water service to consumer • Loss due to leakages and illegal connections • Raw and treated water quality • Treatment process

2. Identify representative from NIC to be a part of the Task Force MOH 3. Obtain a simple diagram of the drinking water supply system from

catchment to distribution with a description from NWC and NIC NWC NIC

4. Obtain a spatial drawing from WRA showing the watershed/catchment and description of the catchment

WRA

5. Obtain information from Mines and Geology about underground water quality in study area

Consultant

6. Finalise the Description of the Water Supply System based on all information provided

Consultant

CATCHMENT & INTAKE � Obtain information on the potential points of contamination of raw water at the catchment and prior to the intake (Hazard Analysis of Critical Control Points)

7. Obtain data on the following pollutants: • sedimentation causing turbidity • Sewage & excreta

NWC

73

ACTIVITY ORGANISATION RESPONSIBLE

• Solid waste 8. Obtain data on the impact of the bauxite alumina and agro industries

on the Rio Cobre (prior to intake) and underground water resources WRA

9. Obtain data on the impact of the point sources/effluent discharges from bauxite alumina, sewage treatment facilities and agro industries on the Rio Cobre (prior to intake) and underground water resources Obtain information on non-point sources

NEPA

10. Invite PCA to be a member of the Task Force Invite RADA to be a co-opted member of the Task Force

MOH

11. Obtain information from PCA on the types of pesticides and herbicides used by agro industries in the watershed

PCA

12. Obtain information on the impacts from hospital sewerage systems on the Rio Cobre and underground water resources

MOH

13. Obtain information from UWI Chemistry Department (Professor Kahwa and Professor Dasgupta) on Studies that may have been conducted on chemical and pesticide discharges to the Rio Cobre

Consultant

14. Obtain information on the business activities along the Rio Cobre St. Catherine Parish Council

15. Obtain information from NIC (Spanish Town Office) about any sources of contamination that they know about

Public Health, St. Catherine

16. Obtain information from NSWMA on any illegal dumpsites that may impact on the Rio Cobre and from Mines and Geology on sand mining activities

Consultant

17. Compile data received • Conduct Hazard Analysis and Risk Characterization • Determine Critical Control Points

Consultant

18. Present data to Task Force � Discuss proposed actions for aspects of the system that are not under control

Consultant

19. Finalise documentation for this section of the WSP Consultant TREATMENT AT PLANT AND WELLS - Obtain information

on the potential points of contamination of water supply during treatment (Hazard Analysis and Risk Characterization)

20. Obtain information on the following pertaining to the NWC water treatment plant:

• Intake quality fluctuations & uncertainties re pollutants • Security • Treatment process • Staff qualifications • Storage • Power supply (reliability and backup supply) • Design constraints • Supply of chemicals for treatment

NWC

74

ACTIVITY ORGANISATION RESPONSIBLE

• Activities within the vicinity of the treatment plant that could contaminate open storage tanks

21. Obtain information on the following pertaining to the NWC Wells: • Challenges associated with disinfection • Power supply (reliability and backup supply) • Water Quality fluctuations & uncertainties re pollutants • Supply of chemicals for disinfection

NWC

STORAGE & DISTRIBUTION - Obtain information on the potential points of contamination of water supply during storage and distribution (Hazard Analysis and Risk Characterization)

22. Obtain information on: • the design of the distribution network (including dead-ends

and pipeline materials) • maintenance of the storage and distribution infrastructure • the current integrity of the storage and distribution

infrastructure

NWC

OTHER - Obtain other information on the potential points of contamination of water supply (Hazard Analysis and Risk Characterization)

23. Check if building code has any provision for non-return valves on household connections to prevent �back siphonage�

St. Catherine Parish Council

24. Obtain information on hazardous chemicals used for fishing in the Rio Cobre

NWC

25. Check to see if colour coding of PVC pipelines is in place in other jurisdictions to ensure that pipes of the correct specifications are used and to prevent mistakes when connecting pipelines

NWC

26. Obtain information about sewer pipes and proximity to water pipes, possible contamination.

NWC

27. Compile data received • Conduct Hazard Analysis and Risk Characterization • Determine Critical Control Points

Consultant

28. Present data to Task Force � Discuss proposed actions for aspects of the system that are not under control

Consultant

29. Finalise documentation for these sections of the WSP Consultant WATER SAFETY ACTION PLAN 30. Develop Action Plan based on Critical Control Points to address

weak areas in water supply system in a meeting with Task Force Consultant

WATER SAFETY PLAN 31. Prepare Draft Water Safety Plan & submit to Task Force for their

review Consultant

32. Task Force meeting to Review WSP Task Force & Consultant

33. Stakeholder Presentation � Draft Water Safety Plan Stakeholders 34. Finalise WSP and submit to Task Force Consultant

75

ACTIVITY ORGANISATION RESPONSIBLE

35. Present Final WSP to Task Force Consultant HEALTH IMPACT EVALUATION 36. Obtain background diarrhoeal disease data � hospitals and public

clinics, private clinics, community nurse aides Surveillance unit, Kingston St. Catherine Parish Health Centre

37. Conduct health and water use practices survey Survey organization to be identified

38. Match survey data to water distribution/source maps 39. Determine health impact feasibility and appropriate follow up

76

APPENDIX 3 � SPANISH TOWN POPULATION DATA FOR 1991 & 2001 Communities 1991 2001

Caymanas Estate/Christian Pen 3446 Gregory Park 1908 Meadowvale 2907 Waterford 17288 Portsmouth 4998 Passagefort 6133 Independence City 5688 Portmore Gardens/Cumberland 9117 Westchester 4481 Garveymeade 2676 Westmeade 1539 Westport/Bridgeview 1500 Edgewater 4149 West Bay 481 Port Henderson/Fort Augusta 934 Bridgeport 6045 Southboro 4257 Braeton 6925 Marine Park 993 Old Braeton 3466 Naggo Head 1928 Newlands 2927 Bernard Lodge 1853 2291 Jones Pen 1904 1893 Twickenham Park 2266 4522 Central Village 7620 8832 Dovecot District 1714 1669 Leiba Gardens 1093 27687 Cromarty/Windsor Park 1155 1724 Fairview/Ebony/Friendship 5176 7964 Frazers Content 1566 1819 Green Acres 1221 1943 St. Johns Heights 578 1309 Bellevue 870 1063

7 Includes population of Hopedale

77

Communities 1991 2001 Keystone 1396 2417 St. Jago Heights 625 597 Tryall Heights 1318 1788 Tredegar Park 1286 2115 Thompson Pen 1448 1633 Greendale 2448 2626 Lauriston 2023 3170 Strathmore Gardens 601 981 Angels /Avon Park 3633 3726 Angels Estate 1452 Eltham Park 4492 5190 Gordon Pen/Leigh Farm 3019 4806 Golden Acres 1528 1449 Winters Pen 1952 1995 Irish Pen 1572 1975 Westmore Gardens/Sunnyside Villa 4709 5111 Eltham View 1185 3958 Ensom City 4912 4813 Highfield 1735 1575 Hampton Green 1277 1831 Spanish Town Central 17324 12738 Tawes Pen 1822 Newton Park 766 901 Dela-Vega City 2965 Homestead Park 1565 1200 Homestead 5070 5775 Willowdene Estate 2863 1618 Willowdene 1645 Hopedale 790 (included in Leiba Gardens) Sydenham 2035 3266 Horizon Park 2344 2353 Beggars Bush 887 1121 Corletts Pen/March Pen/Duncans Pen 5595 5574 TOTAL based on 1991 boundaries 204,165.00 TOTAL based on 2001 boundaries 110,379.00 129,018.00

78

APPENDIX 4 � STATUS OF WATER SOURCES FOR SPANISH TOWN WATER SUPPLY SYSTEM, JANUARY 2007

LOCATION OR SOURCE

STATUS

Central/Village/White Marl

• Surface pump motor • Site untidy; building housing the chlorine equipment in disrepair and

is not secure due to vandalism • Fence in disrepair; site not secure • Illegal connections to incoming raw water line from well • Bordered by informal settlements without water supply or sewage

disposal • Difficulty experienced removing illegal connections • Informal settlements supplied with treated water via a trunk

distribution main to which they make their own connections • Nitrates are high in the groundwater due to the informal sewage

disposal system in the hills surrounding communities Twickenham • Submersible well

• Building housing the chlorine equipment in disrepair and is not secure due to vandalism

• Plant has been vandalized in the past to make bleach • Water pumped straight to distribution mains • On occasion water is pumped to waste to improve water quality

Yang�s • Building housing the chlorine equipment in disrepair and is not secure due to vandalism

Friendship • Deep well • Building housing the chlorine equipment in disrepair and is not secure

due to vandalism • Surrounded by informal settlements without sewerage systems

Browns • Bybrook 1 & 2 • Provides additional water to Spanish Town when the high turbidity in

the Rio Cobre causes the plant to shut down • There is no perimeter fence • No door on the control room • Repair required for the 1 ton cradle

Tulloch Spring • Provides additional water to Spanish Town when the high turbidity in the Rio Cobre causes the plant to shut down

• Some parts of the plant (Control Room, chlorine room & bathroom) were damaged during hurricane Ivan which have not be repaired to date

Headworks Wells E, H, W, G

• Provides additional water to Spanish Town when the high turbidity in the Rio Cobre causes the plant to shut down

• These wells are managed by the Kingston Office Wells - General • Theft of chlorine tanks to make bleach Spanish Town Treatment Plant

• Design capacity 3.5 migd; 2.5-2.8 migd actual production • Turbidity of incoming water affects the ability of the plant to treat up

79

LOCATION OR SOURCE

STATUS

to its maximum capacity • Algal blooms (due to high nutrient loading) occur in the Rio Cobre

upstream of intake on occasions • No backup power supply for the plant; electricity supply unreliable

with surges and outages experienced • Chlorinator is linked to the pump so if the pump does not work there

is no chlorination; system set up so that chlorinator starts before pump distributing water

General • Unauthorised trucks, sometimes un-sanitised, selling water to some communities

80

APP

EN

DIX

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tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

who

en

sure

s tha

t de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

3.

(3) M

onito

r riv

er

for a

lgal

blo

oms

(3

) NW

C

(3

) NW

C L

ab

Tech

nici

ans

visu

ally

insp

ects

riv

er b

etw

een

flat b

ridge

&

dam

bas

ed o

n se

ason

s for

alg

al

bloo

m

(3) A

lgal

bl

oom

s ob

serv

ed

(3) N

WC

T/P

O

pera

tor t

o ch

eck

for t

aste

an

d od

our

prob

lem

s at

the

plan

t Tr

eat

acco

rdin

g to

SO

P w

ith

activ

ated

ca

rbon

if

dete

cted

Tast

e &

O

dour

test

s do

ne b

y pa

nel i

n ac

cord

ance

w

ith

stan

dard

m

etho

d

Pane

l co

nsis

t of �

W

ater

Pr

oduc

tion

Team

Lab

Tech

nici

an

Dai

ly lo

g Re

sults

of T

aste

an

d O

dour

test

s

81

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

and/

or

incr

ease

Cl 2

dosa

ge a

t pre

-ch

lorin

atio

n st

age

Lead

er,

Prod

uctio

n M

anag

er,

Zone

Tea

m

Lead

er,

Fiel

d O

pera

tions

M

anag

er

4.

Ba

uxite

/ al

umin

a pl

ant

efflu

ent

(1) L

icen

ce

baux

ite/a

lum

ina

plan

t effl

uent

di

scha

rged

in

wat

ersh

ed

& e

nsur

e co

mpl

ianc

e w

ith

licen

ce

requ

irem

ents

3 (1

) NEP

A

(1) 2

008

(1) C

entra

l H

ealth

C

omm

ittee

, W

ater

Qua

lity

Subc

omm

ittee

w

ill c

heck

on

stat

us in

June

20

08

Tr

ade

efflu

ent

licen

ces

5.

(2) R

evie

w,

revi

se a

nd u

pdat

e ea

rly w

arni

ng

syst

em

(2

) N

EPA

/JBI

/W

RA/B

auxi

te P

lant

Janu

ary

2008

C

entra

l Hea

lth

Com

mitt

ee,

Wat

er Q

ualit

y Su

bcom

mitt

ee

will

ass

ess i

n M

arch

200

8

Des

k to

p dr

ill

Revi

sed

Early

W

arni

ng S

yste

m

Reco

rds o

f dril

l an

d re

com

men

datio

ns f

or

impr

ovem

ent (

if ne

cess

ary)

6.

(3

) Esta

blish

an

d ac

tivat

e ea

rly w

arni

ng

syst

em to

not

ify

NW

C &

NIC

of

any

spill

to th

e Ri

o C

obre

(3

) N

EPA

/JBI

/W

RA/

Baux

ite

Plan

t

Ong

oing

W

RA, N

EPA

co

nduc

t reg

ular

m

onito

ring

of th

e w

ater

shed

and

ba

uxite

alu

min

a in

dustr

ies

NW

C L

ab

tech

nici

ans

cond

uct v

isua

l m

onito

ring

of

river

Spill

to R

io

Cob

re

upstr

eam

of

dam

Act

ivat

e ea

rly

war

ning

sy

stem

to

notif

y N

WC

N

WC

T/P

O

pera

tors

cl

oses

inta

ke

wor

ks to

pla

nt

and

NW

C La

b as

sess

es w

ater

qu

ality

NW

C L

ab

anal

yses

of

raw

wat

er

sam

ples

to

asse

ss w

ater

qu

ality

in

acco

rdan

ce

with

st

anda

rd te

st

proc

edur

es

usin

g eq

uipm

ent

Spill

and

/or

acci

dent

repo

rt fr

om o

ffend

ing

pers

on/e

ntity

su

bmitt

ed to

N

EPA

N

WC

T/P

O

pera

tors

Dai

ly

Log

Lab

anal

yses

82

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

calib

rate

d to

th

e re

quire

d st

anda

rd

until

wat

er

qual

ity is

sa

tisfa

ctor

y to

allo

w

reop

enin

g of

tre

atm

ent

plan

t int

ake

wor

ks

Cal

ibra

tion

reco

rds

7.

N

SWM

A to

cl

ose

dum

p &

4 N

SWM

A8

Janu

ary

2008

Cen

tral H

ealth

C

omm

ittee

, W

ater

Qua

lity

Subc

omm

ittee

w

ill a

sses

s in

Janu

ary

2008

8.

Info

rmal

solid

w

aste

dum

p

Proh

ibit

furth

er

dum

ping

O

ngoi

ng

NSW

MA

In

spec

tors

to

mon

itor a

rea

wee

kly

Solid

was

te

dum

ped

Cle

an u

p ar

ea

Inve

stig

ate

to

dete

rmin

e so

urce

of

prob

lem

Upd

ate

prov

ided

to

Cen

tral

Hea

lth

Com

mitt

ee,

Wat

er

Qua

lity

Subc

omm

ittee

qua

rterly

NSW

MA

In

spec

tors

m

onth

ly re

ports

9.

Trea

tmen

t pla

nt

scre

en a

t raw

w

ater

inta

ke

N

WC

O

ngoi

ng

NW

C o

pera

tor

visu

ally

insp

ects

th

e in

take

scre

en

ever

y sh

ift

Redu

ced

raw

wat

er

inflo

w (l

ow

wat

er le

vel

in

sedi

men

tatio

n ba

sin;

settl

ing

tank

NW

C

Wat

erm

an

clea

ns sc

reen

s If

ther

e is

si

gnifi

cant

de

bris

in th

e ca

nal t

he p

lant

NW

C T

/P

Ope

rato

r ch

ecks

that

ca

nal i

s cl

ean

NW

C T

/P

Ope

rato

rs D

aily

lo

g

8 NSW

MA

� N

atio

nal S

olid

Was

te M

anag

emen

t Aut

horit

y

83

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

boos

ter

pum

p tri

ps,

leve

l sen

sor

trips

di

strib

utio

n pu

mps

)

is sh

ut d

own

until

can

al is

cl

eane

d

10.

D

umpi

ng o

f so

lid w

aste

into

riv

ers d

ue to

in

freq

uent

or

non-

exis

tent

ga

rbag

e co

llect

ion

in

wat

ersh

ed

(1) W

ork

with

co

mm

uniti

es to

de

velo

p al

tern

ativ

e pr

ogra

mm

es fo

r w

aste

m

anag

emen

t C

olle

ct w

aste

in

thos

e co

mm

uniti

es th

at

can

rece

ive

colle

ctio

n

3 (1

) N

SWM

A

Mar

ch

2008

C

entra

l Hea

lth

Com

mitt

ee,

Wat

er Q

ualit

y Su

bcom

mitt

ee to

ch

eck

on st

atus

Ju

ne 2

008

11.

(2) T

reat

men

t pl

ant s

cree

n at

ra

w w

ater

inta

ke

(2

) NW

C

Ong

oing

N

WC

ope

rato

r vi

sual

ly in

spec

ts

the

inta

ke sc

reen

ev

ery

shift

Redu

ced

raw

wat

er

inflo

w (l

ow

wat

er le

vel

in

sedi

men

tatio

n ba

sin;

settl

ing

tank

bo

oste

r pu

mp

trips

, le

vel s

enso

r tri

ps

distr

ibut

ion

pum

ps)

Wat

erm

an

clea

ns sc

reen

s If

ther

e is

si

gnifi

cant

de

bris

in th

e ca

nal t

he p

lant

is

shut

dow

n un

til c

anal

is

clea

ned

NW

C T

/P

Ope

rato

r ch

ecks

that

ca

nal i

s cl

ean

NW

C T

/P

Ope

rato

rs D

aily

lo

g

12.

(3) U

pgra

ded

WTP

to

effe

ctiv

ely

treat

w

ater

with

solid

w

aste

(3

) NW

C

4th Q

200

8 (3

) Wat

er

Qua

lity

Insp

ecto

r (H

ealth

D

epar

tmen

t) ch

ecks

on

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g

84

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

cont

amin

atio

n

tre

atm

ent p

lant

op

erat

ions

at

leas

t onc

e pe

r m

onth

Prod

uctio

n M

anag

er a

t N

WC

who

en

sure

s tha

t de

ficie

ncie

s ar

e ad

dres

sed

defic

ienc

ies

MO

H a

nnua

l au

dit f

indi

ngs

13.

(3) M

aint

ain

buffe

r zon

e ar

ound

can

al

(4

) Par

ish

Cou

ncil

Ong

oing

C

entra

l Hea

lth

Com

mitt

ee,

Wat

er Q

ualit

y Su

bcom

mitt

ee to

as

sess

in M

arch

20

08

14.

In

form

al

resi

dent

ial

settl

emen

ts a

long

ca

nal p

rior t

o in

take

with

out

sew

age

treat

men

t &

dis

posa

l sy

stem

s

(1) I

mpl

emen

t an

educ

atio

n ca

mpa

ign

abou

t sa

nita

tion,

pr

ovid

e in

fras

truct

ure

to

prev

ent w

aste

fr

om re

achi

ng

the

cana

l Re

loca

te

settl

emen

ts

whe

re p

ossi

ble

1 (1

) & (2

) H

ealth

D

pt./M

OH

, Pa

rish

Cou

ncil,

Sq

uatte

r M

gt. U

nit,

Min

. of

Hou

sing

&

NIC

(1) s

tart

no la

ter

than

M

arch

20

08 -

Cen

tral H

ealth

C

omm

ittee

, W

ater

Qua

lity

Subc

omm

ittee

w

ill a

sses

s sta

tus

in Ju

ne 2

008

15.

(2) M

aint

ain

buffe

r zon

e ar

ound

can

al

(1

) & (2

) H

ealth

D

pt./M

OH

, Pa

rish

Cou

ncil,

Sq

uatte

r M

gt. U

nit,

Min

. of

Hou

sing

&

NIC

Ong

oing

C

entra

l Hea

lth

Com

mitt

ee,

Wat

er Q

ualit

y Su

bcom

mitt

ee

will

ass

ess s

tatu

s in

June

200

8

85

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

16.

(3) U

pgra

ded

WTP

to

effe

ctiv

ely

treat

w

ater

with

co

ntam

inan

ts

(3

) NW

C

4th Q

200

8 (3

) Wat

er

Qua

lity

Insp

ecto

r (H

ealth

D

epar

tmen

t) ch

ecks

on

treat

men

t pla

nt

oper

atio

ns a

t le

ast o

nce

per

mon

th

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

who

en

sure

s tha

t de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

17.

(4) R

eque

sts f

or

new

con

nect

ions

ar

e sc

reen

ed to

en

sure

that

NW

C

does

not

pro

vide

co

nnec

tions

to

info

rmal

settl

ers

(4

) NW

C

Ong

oing

Se

nior

Cus

tom

er

Rela

tions

M

anag

er

asse

sses

ap

plic

atio

ns

Zero

wat

er

supp

ly

conn

ectio

ns

to in

form

al

settl

emen

ts

Dis

conn

ect

supp

ly

NW

C

Inte

rnal

A

udit

Aud

it re

port

18.

In

form

al

com

mer

cial

ac

tiviti

es e

.g. c

ar

was

hes,

cook

sh

ops,

gara

ges,

alon

g ca

nal p

rior

to in

take

with

out

was

tew

ater

tre

atm

ent/d

ispo

sal

sys

tem

s

(1) I

mpl

emen

t an

educ

atio

n ca

mpa

ign

abou

t sa

nita

tion,

pr

ovid

e in

fras

truct

ure

to

prev

ent w

aste

fr

om re

achi

ng

the

cana

l

1 (1

) Hea

lth

Dpt

./MO

H,

Paris

h C

ounc

il,

Squa

tter

Mgt

. Uni

t, M

in. o

f H

ousi

ng &

N

IC

(2) s

tart

no la

ter

than

M

arch

20

08

Cen

tral H

ealth

C

omm

ittee

, W

ater

Qua

lity

Subc

omm

ittee

w

ill a

sses

s sta

tus

in Ju

ne 2

008

19.

(2) M

aint

ain

buffe

r zon

e ar

ound

can

al

(2

) Hea

lth

Dpt

./MO

H,

Paris

h C

ounc

il,

Squa

tter

Mgt

. Uni

t, M

in. o

f H

ousi

ng &

N

IC

Ong

oing

C

entra

l Hea

lth

Com

mitt

ee,

Wat

er Q

ualit

y Su

bcom

mitt

ee

will

ass

ess s

tatu

s in

June

200

8

86

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

20.

(3) U

pgra

ded

WTP

to

effe

ctiv

ely

treat

w

ater

with

co

ntam

inan

ts

(3

) NW

C

(3) 4

th Q

20

08

(3) W

ater

Q

ualit

y In

spec

tor

(Hea

lth

Dep

artm

ent)

chec

ks o

n tre

atm

ent p

lant

op

erat

ions

at

leas

t onc

e pe

r m

onth

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

who

en

sure

s tha

t de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

21.

(4) R

eque

sts f

or

new

con

nect

ions

ar

e sc

reen

ed to

en

sure

that

NW

C

does

not

pro

vide

co

nnec

tions

to

info

rmal

settl

ers

(4

) NW

C

Ong

oing

Se

nior

Cus

tom

er

Rela

tions

M

anag

er

asse

sses

ap

plic

atio

ns

Zero

wat

er

supp

ly

conn

ectio

ns

to in

form

al

settl

emen

ts

Dis

conn

ect

supp

ly

NW

C

Inte

rnal

A

udit

Aud

it re

port

22.

A

ll w

aste

(agr

o in

dustr

ial a

nd

indu

stria

l ef

fluen

ts a

nd

solid

was

te)

Impl

emen

t m

easu

res t

o su

ppor

t W

ater

shed

M

anag

emen

t Po

licy

3 N

EPA

O

ngoi

ng

Cen

tral H

ealth

C

omm

ittee

, W

ater

Qua

lity

Subc

omm

ittee

w

ill a

sses

s sta

tus

at M

arch

200

8

23.

D

ispo

sal o

f ef

fluen

t int

o riv

ers b

y C

essp

ool

empt

iers

(1)P

rom

ulga

te

regu

latio

ns fo

r C

essp

ool

serv

icin

g co

mpa

nies

In

stitu

te m

anife

st

syst

em to

trac

k m

ovem

ent o

f w

aste

Pr

osec

ute

oper

ator

s in

volv

ed in

this

3 (1

) Min

istry

of

Hea

lth,

Paris

h C

ounc

il,

4th Q

200

8 C

entra

l Hea

lth

Com

mitt

ee,

Wat

er Q

ualit

y Su

bcom

mitt

ee

will

ass

ess s

tatu

s at

Dec

embe

r 20

08

Le

gisl

atio

n

87

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

activ

ity

24.

(2) U

pgra

ded

WTP

to

effe

ctiv

ely

treat

w

ater

with

co

ntam

inan

ts

(2

) NW

C

4th Q

200

8 (2

) Wat

er

Qua

lity

Insp

ecto

r (H

ealth

D

epar

tmen

t) ch

ecks

on

treat

men

t pla

nt

oper

atio

ns a

t le

ast o

nce

per

mon

th

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

who

en

sure

s tha

t de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

25.

(3) C

hlor

inat

e ra

w w

ater

(3) N

WC

O

ngoi

ng

NW

C T

/P

oper

ator

m

onito

rs C

l 2 re

sidu

al le

vels

ho

urly

at t

he

plan

t;

Wat

er q

ualit

y sa

mpl

ers v

isua

lly

obse

rve

river

be

twee

n fla

t br

idge

and

dam

fo

r alg

al b

loom

s;

Resi

dual

C

l 2<2m

g/l

afte

r pre

-ch

lorin

atio

n A

lgal

bl

oom

s ob

serv

ed

NW

C T

/P

Ope

rato

r tro

uble

shoo

ts

pre

Cl 2

equi

pmen

t at

plan

t, in

crea

se

dose

if

equi

pmen

t ok

ay, i

f Cl 2

is lo

w a

fter p

ost

Cl 2,

incr

ease

do

se &

ob

serv

e fo

r 2

hour

s, no

im

prov

emen

t sh

ut d

own

plan

t

Prop

erly

cl

eane

d ch

lorin

e co

mpa

rato

rs

Wat

er

Prod

uctio

n Te

am

Lead

er

chec

ks

reco

rds

ever

y w

eek,

ra

ndom

ob

serv

atio

n of

op

erat

ions

C

heck

co

mpa

rato

r ag

ains

t (in

tern

atio

nal)

stand

ard

Hou

rly lo

gs o

f re

sidu

al c

hlor

ine

leve

ls

(dis

tribu

tion

line)

N

on-

conf

orm

ance

s an

d co

rrec

tive

actio

ns

Cal

ibra

tion

reco

rds

Log

of c

hlor

ine

feed

rate

s Re

cord

s of T

eam

Le

ader

aud

its

88

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

solu

tion

(trac

eabl

e to

Fr

ance

)

26.

Pe

stic

ide

resi

dues

in st

orm

w

ater

run-

off

from

farm

ing

activ

ities

with

in

the

wat

ersh

ed

(1) C

ontin

ue to

re

gula

te th

e ty

pes o

f pe

stic

ides

use

d an

d pr

ovid

e tra

inin

g to

fa

rmer

s in

the

use

of p

estic

ides

an

d th

e di

spos

al

of p

estic

ide

was

te

3 (1

) PC

A &

RA

DA

O

ngoi

ng

Cen

tral H

ealth

C

omm

ittee

, W

ater

Qua

lity

Subc

omm

ittee

w

ill a

sses

s sta

tus

annu

ally

27.

(2) U

pgra

ded

WTP

to

effe

ctiv

ely

treat

w

ater

with

co

ntam

inan

ts

(2

) NW

C

4th Q

200

8 (2

) Wat

er

Qua

lity

Insp

ecto

r (H

ealth

D

epar

tmen

t) ch

ecks

on

treat

men

t pla

nt

oper

atio

ns a

t le

ast o

nce

per

mon

th

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

who

en

sure

s tha

t de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

28.

(3) C

heck

pe

stic

ide

leve

ls

in ra

w w

ater

up

strea

m o

f dam

(3

) NW

C

Twic

e pe

r ye

ar

NW

C L

ab

mon

itors

in

acco

rdan

ce w

ith

stan

dard

pr

oced

ures

WH

O

Gui

delin

es

Not

ify P

CA

of

findi

ngs.

If re

quire

d PC

A to

id

entif

y so

urce

an

d ad

dres

s pr

oble

m

Test

Eq

uipm

ent

calib

rate

d as

re

quire

d

Resu

lts o

f tes

ts

for p

estic

ides

C

alib

ratio

n re

cord

s for

test

equi

pmen

t

89

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

29.

H

igh

sedi

men

ts

in st

orm

wat

er

run-

off f

rom

cl

ear c

uttin

g of

la

nd a

ssoc

iate

d w

ith fa

rmin

g an

d ot

her

cons

truct

ion

activ

ities

and

sa

nd m

inin

g w

ithin

the

wat

ersh

ed

(1) I

nstit

ute

regu

lato

ry

mea

sure

s to

(a)

proh

ibit

illeg

al

min

ing

and

(b) t

o m

anag

e lic

ense

d sa

nd m

inin

g in

th

e Ri

o C

obre

an

d its

trib

utar

ies

e.g.

usin

g se

dim

ent t

raps

3 (1

) Par

ish

Cou

ncil,

C

omm

issi

oner

of M

ines

C

entra

l Hea

lth

Com

mitt

ee,

Wat

er Q

ualit

y Su

bcom

mitt

ee

will

ass

ess s

tatu

s at

Dec

embe

r 20

08

30.

(2) U

pgra

ded

WTP

to

effe

ctiv

ely

treat

hi

gh tu

rbid

ity

wat

er e

.g. u

sing

coag

ulan

t ca

pabl

e of

tre

atin

g tu

rbid

ity

leve

ls u

p to

150

N

TU

(2

) NW

C

4th Q

200

8 (2

) Wat

er

Qua

lity

Insp

ecto

r (H

ealth

D

epar

tmen

t) ch

ecks

on

treat

men

t pla

nt

oper

atio

ns a

t le

ast o

nce

per

mon

th

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

who

en

sure

s tha

t de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

31.

Se

wag

e ef

fluen

t fr

om (a

ppro

ved)

sy

stem

s whi

ch

utili

se o

n-sit

e ab

sorp

tion

pits

(1) E

nsur

e se

t-ba

ck d

ista

nces

fr

om th

e riv

er

are

enfo

rced

4 (1

) Par

ish

Cou

ncil

O

ngoi

ng

Cen

tral H

ealth

C

omm

ittee

, W

ater

Qua

lity

Subc

omm

ittee

to

asse

ss st

atus

in

Mar

ch 2

008

32.

(2) U

pgra

ded

WTP

to

effe

ctiv

ely

treat

w

ater

with

co

ntam

inan

ts

(2

) NW

C

4th Q

200

8 (2

) Wat

er

Qua

lity

Insp

ecto

r (H

ealth

D

epar

tmen

t) ch

ecks

on

treat

men

t pla

nt

oper

atio

ns a

t le

ast o

nce

per

mon

th

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

who

en

sure

s tha

t

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

90

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

defic

ienc

ies

are

addr

esse

d

33.

Se

curit

y ris

k -

Can

al c

onve

ying

ra

w w

ater

vu

lner

able

to

unsc

rupu

lous

ac

tions

whi

ch

can

cont

amin

ate

wat

er q

ualit

y

Low

risk

haz

ard

� no

spec

ific

stra

tegi

es to

ad

dres

s it a

s yet

3

34.

Pr

e-ch

lorin

atio

n of

raw

wat

er

with

ele

vate

d or

gani

cs fo

rmin

g ca

rcin

ogen

ic b

y-pr

oduc

ts

Test

trea

ted

wat

er in

the

distr

ibut

ion

syst

em to

de

term

ine

the

by-p

rodu

cts

form

ed a

nd

cond

uct a

loca

l ris

k as

sess

men

t of

the h

ealth

im

plic

atio

ns o

f us

ing

chlo

rine

for d

isin

fect

ion

of d

rinki

ng w

ater

2 N

WC

4th

Q 2

008

Cen

tral H

ealth

C

omm

ittee

, W

ater

Qua

lity

Subc

omm

ittee

to

asse

ss st

atus

in

Dec

embe

r 200

8

35.

Lo

w ri

ver f

low

s du

ring

drou

ght

Even

in d

roug

ht

cond

ition

s whe

n riv

er is

low

, ca

nal l

evel

re

mai

ns

cons

tant

; the

re

are

no w

ater

re

stric

tions

at

this

pla

nt d

ue to

lo

w fl

ows

3

C

AT

CH

ME

NT

&

INT

AK

E -

WE

LL

91

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

36.

Se

wag

e ef

fluen

t, pa

rticu

larly

ni

trate

s, fr

om

(app

rove

d)

syst

ems w

hich

ut

ilise

on-

site

abso

rptio

n pi

ts

(1) C

ontin

ue to

m

onito

r wel

l w

ater

qua

lity

so

that

app

ropr

iate

m

easu

res c

an b

e ta

ken

whe

n ni

trate

s exc

eed

the

thre

shol

d va

lue;

3 (1

) NW

C

Ong

oing

Pu

blic

Hea

lth

Insp

ecto

r co

nduc

ts o

n-sit

e in

spec

tions

w

ithin

the

wat

ersh

ed a

t le

ast o

nce

per

year

N

WC

Lab

test

s fo

r nitr

ates

onc

e pe

r mon

th

Nitr

ates

>

45 m

g/l a

s N

O3

Mic

robi

olog

ical

mon

itorin

g an

d ob

serv

atio

n of

tre

nds b

y N

WC

and

M

OH

N

WC

shut

s do

wn

wel

l w

hen

nitra

tes

appr

oach

/exc

eed

crit

ical

lim

it

Test

eq

uipm

ent

calib

rate

d ac

cord

ing

to

requ

irem

ent

s

Mon

itorin

g re

sults

for

nitra

tes a

nd

bact

eria

C

alib

ratio

n re

cord

s Pu

blic

Hea

lth

Insp

ecto

r�s

Ann

ual R

epor

t on

Wat

ersh

ed

37.

(2) U

pgra

ded

wel

ls u

nder

K

MA

Wat

er

Supp

ly P

roje

ct

will

impr

ove

Cl 2

cont

act t

ime

(2

) NW

C

4th Q

20

08

(2) W

ater

Q

ualit

y In

spec

tor

(Hea

lth

Dep

artm

ent)

chec

ks o

n w

ells

at

leas

t onc

e pe

r m

onth

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

who

en

sure

s tha

t de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

38.

(3) W

here

po

ssib

le p

rovi

de

alte

rnat

ive

on-

site

sew

age

treat

men

t fa

cilit

ies w

hich

ut

ilise

effe

ctiv

e tre

atm

ent

met

hods

oth

er

that

soil

(3

) Par

ish

Cou

ncil,

M

OH

&

WRA

Ong

oing

C

entra

l Hea

lth

Com

mitt

ee,

Wat

er Q

ualit

y Su

bcom

mitt

ee

will

ass

ess s

tatu

s in

June

200

8

39.

In

form

al

resi

dent

ial

settl

emen

ts

with

out s

ewag

e

(1) C

ontin

ue to

ch

lorin

ate

wat

er

3 (1

) NW

C

Ong

oing

Pu

blic

Hea

lth

Insp

ecto

r co

nduc

ts o

n-sit

e in

spec

tions

Nitr

ates

>

45 m

g/l a

s N

O3

Mic

robi

olog

ical

mon

itorin

g an

d ob

serv

atio

n of

Test

eq

uipm

ent

calib

rate

d ac

cord

ing

to

Mon

itorin

g re

sults

for

nitra

tes a

nd

bact

eria

92

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

treat

men

t &

disp

osal

syst

ems

up g

radi

ent o

f gr

ound

wat

er

reso

urce

s

with

in th

e w

ater

shed

at

leas

t onc

e pe

r ye

ar

NW

C L

ab te

sts

for n

itrat

es o

nce

per m

onth

trend

s by

NW

C a

nd

MO

H

NW

C sh

uts

dow

n w

ell

whe

n ni

trate

s ap

proa

ch/e

xce

ed c

ritic

al li

mit

requ

irem

ent

s C

alib

ratio

n re

cord

s Pu

blic

Hea

lth

Insp

ecto

r�s

Ann

ual R

epor

t on

Wat

ersh

ed

40.

(2) w

here

po

ssib

le p

rovi

de

alte

rnat

ive

on-

site

sew

age

treat

men

t fa

cilit

ies w

hich

ut

ilise

effe

ctiv

e tre

atm

ent

met

hods

oth

er

that

soil

(2

) Par

ish

Cou

ncil

Ong

oing

C

entra

l Hea

lth

Com

mitt

ee,

Wat

er Q

ualit

y Su

bcom

mitt

ee

will

ass

ess s

tatu

s in

June

200

8

41.

Se

wag

e ef

fluen

t fo

r for

mal

or

info

rmal

sour

ces

Chl

orin

ate

wat

er

3 N

WC

O

ngoi

ng

NW

C T

/P

oper

ator

m

onito

rs C

l2

resi

dual

leve

ls

hour

ly a

t the

pl

ant;

W

ater

qua

lity

sam

pler

s vis

ually

ob

serv

e riv

er

betw

een

flat

brid

ge a

nd d

am

for a

lgal

blo

oms;

Resi

dual

C

l2<2

mg/

l af

ter p

re-

chlo

rinat

ion

Alg

al

bloo

ms

obse

rved

NW

C T

/P

Ope

rato

r tro

uble

shoo

ts

pre

Cl2

eq

uipm

ent a

t pl

ant,

incr

ease

do

se if

eq

uipm

ent

okay

, if C

l2 is

lo

w a

fter p

ost

Cl2

, inc

reas

e do

se &

ob

serv

e fo

r 2

hour

s, no

im

prov

emen

t sh

ut d

own

plan

t

Prop

erly

cl

eane

d ch

lorin

e co

mpa

rato

rs

Wat

er

Prod

uctio

n Te

am

Lead

er

chec

ks

reco

rds

ever

y w

eek,

ra

ndom

ob

serv

atio

n of

op

erat

ions

C

heck

co

mpa

rato

r

Hou

rly lo

gs o

f re

sidu

al c

hlor

ine

leve

ls

(dis

tribu

tion

line)

N

on-

conf

orm

ance

s an

d co

rrec

tive

actio

ns

Cal

ibra

tion

reco

rds

Log

of c

hlor

ine

feed

rate

s Re

cord

s of T

eam

Le

ader

aud

its

93

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

agai

nst

(inte

rnat

iona

l) sta

ndar

d so

lutio

n (tr

acea

ble

to

Fran

ce)

42.

T

RE

AT

ME

NT

- SU

RFA

CE

W

AT

ER

43.

H

igh

turb

idity

of

raw

wat

er

caus

ing

silt t

o ac

cum

ulat

e in

re

serv

oir l

imiti

ng

the

quan

tity

of

wat

er tr

eate

d an

d re

duci

ng th

e tre

ated

wat

er

qual

ity

Will

be

addr

esse

d in

the

desi

gn o

f the

up

grad

ed w

ater

tre

atm

ent p

lant

un

der t

he K

MA

W

ater

Sup

ply

Proj

ect;

new

eq

uipm

ent a

nd

addi

tiona

l ch

emic

als t

o en

able

trea

tmen

t of

wat

er w

ith

turb

idity

> 2

0 N

TU u

p to

150

N

TU

3 N

WC

4th

Q 2

008

(3) W

ater

Q

ualit

y In

spec

tor

(Hea

lth

Dep

artm

ent)

chec

ks o

n tre

atm

ent p

lant

op

erat

ions

at

leas

t onc

e pe

r m

onth

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

who

en

sure

s tha

t de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

44.

Floc

cula

tion

&

sedi

men

tatio

n

NW

C

Ong

oing

O

pera

tor G

uide

d by

Sta

ndar

d O

pera

ting

Proc

edur

es

(SO

Ps)

Ope

rato

r dos

es

with

in

reco

mm

ende

d ra

nge

O

pera

tor c

heck

s ev

ery

othe

r hou

r

Dos

ed a

t 15

mg/

L - 5

0 m

g/L

Turb

idity

at

Cle

arw

ell

<1N

TU

MO

H

Turb

idity

</

=5N

TU

Ope

rato

r co

nduc

ts a

nu

mbe

r of

syst

em c

heck

s - I

ntak

e tu

rbid

ity,

clea

rwel

l tu

rbid

ity &

w

ater

leve

l, al

um fe

ed ra

te

from

pre

viou

s sh

ift

Cal

ibra

te

turb

idity

m

eter

in

stan

dard

su

spen

sion

W

ater

Pr

oduc

tion

Team

Le

ader

ch

ecks

re

cord

s ev

ery

wee

k,

Logs

of a

lum

fe

ed ra

tes

Logs

of t

urbi

dity

re

adin

g N

on-

conf

orm

ance

s an

d co

rrec

tive

actio

ns

Cal

ibra

tion

reco

rds

94

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

Shut

off

boos

ter p

ump

and

back

was

h fil

ter(

s)

Man

ually

ad

just

Alu

m

feed

rate

or

wat

er in

flow

ra

te

rand

om

obse

rvat

ion

of

oper

atio

ns,

annu

al

audi

ts

Reco

rds o

f Tea

m

Lead

er a

udits

45.

N

o ba

ck u

p po

wer

supp

ly

Will

be

addr

esse

d in

the

desi

gn o

f the

up

grad

ed w

ater

tre

atm

ent p

lant

un

der t

he K

MA

W

ater

Sup

ply

Proj

ect,

stan

dby

gene

rato

r pr

opos

ed

3 N

WC

4th

Q 2

008

Mai

nten

ance

Te

am L

eade

r co

nduc

ts re

gula

r PM

che

cks o

n in

stal

led

gene

rato

r

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

who

en

sure

s tha

t de

ficie

ncie

s ar

e ad

dres

sed

Re

gula

te w

ater

flo

ws t

o co

mm

uniti

es

as re

quire

d

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

46.

U

ncer

tain

raw

w

ater

qua

lity

due

to w

ide

rang

e of

po

ssib

le

cont

amin

ants

(p

estic

ides

, in

dustr

ial

efflu

ents

etc

.)

Early

war

ning

sy

stem

3

NW

C

Ong

oing

W

RA, N

EPA

co

nduc

t reg

ular

m

onito

ring

of th

e w

ater

shed

and

ba

uxite

alu

min

a in

dustr

ies

NW

C L

ab

tech

nici

ans

cond

uct v

isua

l m

onito

ring

of

river

Spill

to R

io

Cob

re

upstr

eam

of

dam

Act

ivat

e ea

rly

war

ning

sy

stem

to

notif

y N

WC

N

WC

T/P

O

pera

tors

cl

oses

inta

ke

wor

ks to

pla

nt

and

NW

C La

b as

sess

es w

ater

qu

ality

NW

C L

ab

anal

yses

of

raw

wat

er

sam

ples

to

asse

ss w

ater

qu

ality

in

acco

rdan

ce

with

st

anda

rd te

st

proc

edur

es

usin

g eq

uipm

ent

Spill

and

/or

acci

dent

repo

rt fr

om o

ffend

ing

pers

on/e

ntity

su

bmitt

ed to

N

EPA

N

WC

T/P

O

pera

tors

Dai

ly

Log

Lab

anal

yses

95

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

calib

rate

d to

th

e re

quire

d st

anda

rd

until

wat

er

qual

ity is

sa

tisfa

ctor

y to

allo

w

reop

enin

g of

tre

atm

ent

plan

t int

ake

wor

ks

Cal

ibra

tion

reco

rds

47.

U

nder

dos

ing

of

chlo

rine

New

chl

orin

atio

n sy

stem

des

igne

d fo

r upg

rade

d W

TP;

2 N

WC

4th

Q 2

008

(3) W

ater

Q

ualit

y In

spec

tor

(Hea

lth

Dep

artm

ent)

chec

ks o

n tre

atm

ent p

lant

op

erat

ions

at

leas

t onc

e pe

r m

onth

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

de

ficie

ncie

s w

ho e

nsur

es

that

de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

48.

Mon

itor r

esid

ual

chlo

rine

thro

ugho

ut

treat

men

t pr

oces

s

N

WC

O

ngoi

ng

NW

C T

/P

oper

ator

m

onito

rs C

l 2 re

sidu

al le

vels

ho

urly

at t

he

plan

t;

Wat

er q

ualit

y sa

mpl

ers v

isua

lly

obse

rve

river

be

twee

n fla

t br

idge

and

dam

fo

r alg

al b

loom

s;

Resi

dual

C

l 2<2m

g/l

afte

r pre

-ch

lorin

atio

n A

lgal

bl

oom

s ob

serv

ed

NW

C T

/P

Ope

rato

r tro

uble

shoo

ts

pre

Cl 2

equi

pmen

t at

plan

t, in

crea

se

dose

if

equi

pmen

t ok

ay, i

f Cl 2

is lo

w a

fter p

ost

Cl 2,

incr

ease

do

se &

ob

serv

e fo

r 2

Prop

erly

cl

eane

d ch

lorin

e co

mpa

rato

rs

Wat

er

Prod

uctio

n Te

am

Lead

er

chec

ks

reco

rds

ever

y w

eek,

ra

ndom

Hou

rly lo

gs o

f re

sidu

al c

hlor

ine

leve

ls

(dis

tribu

tion

line)

N

on-

conf

orm

ance

s an

d co

rrec

tive

actio

ns

Cal

ibra

tion

reco

rds

96

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

hour

s, no

im

prov

emen

t sh

ut d

own

plan

t

obse

rvat

ion

of

oper

atio

ns

Che

ck

com

para

tor

agai

nst

(inte

rnat

iona

l) sta

ndar

d so

lutio

n (tr

acea

ble

to

Fran

ce)

Log

of c

hlor

ine

feed

rate

s Re

cord

s of T

eam

Le

ader

aud

its

49.

O

ver d

osin

g of

ch

lorin

e M

onito

r res

idua

l ch

lorin

e th

roug

hout

tre

atm

ent

proc

ess

4 N

WC

O

ngoi

ng

NW

C T

/P

oper

ator

m

onito

rs C

l 2 re

sidu

al le

vels

ho

urly

at t

he

plan

t;

Wat

er q

ualit

y sa

mpl

ers v

isua

lly

obse

rve

river

be

twee

n fla

t br

idge

and

dam

fo

r alg

al b

loom

s;

Resi

dual

C

l 2<2m

g/l

afte

r pre

-ch

lorin

atio

n A

lgal

bl

oom

s ob

serv

ed

NW

C T

/P

Ope

rato

r tro

uble

shoo

ts

pre

Cl 2

equi

pmen

t at

plan

t, in

crea

se

dose

if

equi

pmen

t ok

ay, i

f Cl 2

is lo

w a

fter p

ost

Cl 2,

incr

ease

do

se &

ob

serv

e fo

r 2

hour

s, no

im

prov

emen

t sh

ut d

own

plan

t

Prop

erly

cl

eane

d ch

lorin

e co

mpa

rato

rs

Wat

er

Prod

uctio

n Te

am

Lead

er

chec

ks

reco

rds

ever

y w

eek,

ra

ndom

ob

serv

atio

n of

op

erat

ions

C

heck

co

mpa

rato

r ag

ains

t (in

tern

atio

nal)

stand

ard

solu

tion

(trac

eabl

e to

Fr

ance

)

Hou

rly lo

gs o

f re

sidu

al c

hlor

ine

leve

ls

(dis

tribu

tion

line)

N

on-

conf

orm

ance

s an

d co

rrec

tive

actio

ns

Cal

ibra

tion

reco

rds

Log

of c

hlor

ine

feed

rate

s Re

cord

s of T

eam

Le

ader

aud

its

97

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

50.

In

effe

ctiv

e flo

ccul

atio

n du

e to

des

ign

limita

tions

such

as

infra

struc

ture

an

d pH

con

trol

New

coa

gula

tion

and

flocc

ulat

ion

syst

em d

esig

ned

for u

pgra

ded

WTP

3 N

WC

4th

Q 2

008

(3) W

ater

Q

ualit

y In

spec

tor

(Hea

lth

Dep

artm

ent)

chec

ks o

n tre

atm

ent p

lant

op

erat

ions

at

leas

t onc

e pe

r m

onth

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

de

ficie

ncie

s w

ho e

nsur

es

that

de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

51.

Mon

itor t

urbi

dity

th

roug

hout

tre

atm

ent

proc

ess

N

WC

Ong

oing

O

pera

tor G

uide

d by

Sta

ndar

d O

pera

ting

Proc

edur

es

(SO

Ps)

Ope

rato

r dos

es

with

in

reco

mm

ende

d ra

nge

O

pera

tor c

heck

s ev

ery

othe

r hou

r

Dos

ed a

t 15

mg/

L - 5

0 m

g/L

Turb

idity

at

Cle

arw

ell

<1N

TU

MO

H

Turb

idity

</

=5N

TU

Ope

rato

r co

nduc

ts a

nu

mbe

r of

syst

em c

heck

s - I

ntak

e tu

rbid

ity,

clea

rwel

l tu

rbid

ity &

w

ater

leve

l, al

um fe

ed ra

te

from

pre

viou

s sh

ift

Shut

off

boos

ter p

ump

and

back

was

h fil

ter(

s)

Man

ually

ad

just

Alu

m

feed

rate

or

wat

er in

flow

ra

te

Cal

ibra

te

turb

idity

m

eter

in

stan

dard

su

spen

sion

W

ater

Pr

oduc

tion

Team

Le

ader

ch

ecks

re

cord

s ev

ery

wee

k,

rand

om

obse

rvat

ion

of

oper

atio

ns,

annu

al

audi

ts

Logs

of a

lum

fe

ed ra

tes

Logs

of t

urbi

dity

re

adin

g N

on-

conf

orm

ance

s an

d co

rrec

tive

actio

ns

Cal

ibra

tion

reco

rds

Reco

rds o

f Tea

m

Lead

er a

udits

98

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

52.

In

effe

ctiv

e fil

tratio

n an

d ba

ckw

ashi

ng d

ue

to a

ge o

f sys

tem

an

d de

sign

lim

itatio

ns

Filtr

atio

n an

d ba

ckw

ash

syst

em

to b

e up

grad

ed

unde

r the

KM

A

Wat

er S

uppl

y Pr

ojec

t; in

stal

l lo

ss o

f hea

d ga

uge

to in

dica

te

whe

n fil

ters

nee

d to

be

back

was

hed

3 N

WC

4th

Q 2

008

(3) W

ater

Q

ualit

y In

spec

tor

(Hea

lth

Dep

artm

ent)

chec

ks o

n tre

atm

ent p

lant

op

erat

ions

at

leas

t onc

e pe

r m

onth

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

de

ficie

ncie

s w

ho e

nsur

es

that

de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

53.

Mon

itor t

urbi

dity

th

roug

hout

tre

atm

ent

proc

ess

N

WC

M

OH

Ong

oing

O

pera

tor G

uide

d by

Sta

ndar

d O

pera

ting

Proc

edur

es

(SO

Ps)

Ope

rato

r dos

es

with

in

reco

mm

ende

d ra

nge

O

pera

tor c

heck

s ev

ery

othe

r hou

r

Dos

ed a

t 15

mg/

L - 5

0 m

g/L

Turb

idity

at

Cle

arw

ell

<1N

TU

MO

H

Turb

idity

</

=5N

TU

Ope

rato

r co

nduc

ts a

nu

mbe

r of

syst

em c

heck

s - I

ntak

e tu

rbid

ity,

clea

rwel

l tu

rbid

ity &

w

ater

leve

l, al

um fe

ed ra

te

from

pre

viou

s sh

ift

Shut

off

boos

ter p

ump

and

back

was

h fil

ter(

s)

Man

ually

ad

just

Alu

m

feed

rate

or

wat

er in

flow

ra

te

Cal

ibra

te

turb

idity

m

eter

in

stan

dard

su

spen

sion

W

ater

Pr

oduc

tion

Team

Le

ader

ch

ecks

re

cord

s ev

ery

wee

k,

rand

om

obse

rvat

ion

of

oper

atio

ns,

annu

al

audi

ts

Logs

of a

lum

fe

ed ra

tes

Logs

of t

urbi

dity

re

adin

g N

on-

conf

orm

ance

s an

d co

rrec

tive

actio

ns

Cal

ibra

tion

reco

rds

Reco

rds o

f Tea

m

Lead

er a

udits

99

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

54.

C

heck

val

ves o

n di

strib

utio

n pu

mps

- abs

ent o

r in

effe

ctiv

e

Repl

ace

inef

fect

ive

chec

k va

lves

and

insta

ll m

issin

g ch

eck

valv

es; h

ave

suffi

cien

t un

iform

ity

with

in sy

stem

so

that

larg

e va

riety

of

diff

eren

t typ

es

of v

alve

s do

not

have

to b

e ke

pt

in in

vent

ory;

4 N

WC

O

ngoi

ng

Wat

er

Prod

uctio

n M

anag

er c

heck

s ea

ch m

onth

Reve

rse

flow

s V

alve

cre

w

calle

d to

ad

dres

s pr

oble

m

Wat

er

Prod

uctio

n Te

am

Lead

er

chec

ks

Fiel

d O

pera

tors

Lo

gs

55.

B

oost

er P

ump

(to fi

lters

) fai

lure

En

sure

that

spar

e is

ava

ilabl

e; h

ave

suffi

cien

t un

iform

ity

with

in sy

stem

so

that

larg

e va

riety

of

diff

eren

t typ

es

of p

umps

do

not

have

to b

e ke

pt

in in

vent

ory

3 N

WC

O

ngoi

ng

Mai

nten

ance

Te

am L

eade

r do

es

Prev

enta

tive

Mai

nten

ance

ch

ecks

at l

east

twic

e pe

r mon

th

M

aint

enan

ce

reco

rds

T

RE

AT

ME

NT

- WE

LLS

56.

N

o ch

lorin

atio

n du

e to

thef

t of

chlo

rine

cylin

ders

New

chl

orin

e ha

ndlin

g pr

oced

ures

sinc

e Ja

nuar

y 20

07;

secu

rity

guar

ds

on si

te a

t lar

ge

inst

alla

tions

, in

stal

latio

n of

gr

ills &

doo

rs,

oper

ator

s to

visi

t si

te a

t lea

st 2

tim

es p

er sh

ift,

track

ing

syst

em

1 N

WC

O

ngoi

ng

Wat

er

Prod

uctio

n M

anag

er tr

acks

m

ovem

ent o

f cy

linde

rs w

eekl

y

Mis

sing

chlo

rine

cylin

der

Shut

dow

n w

ell,

repl

ace

mis

sing

cylin

der

imm

edia

tely

; N

otify

NW

C

Secu

rity

Man

ager

Tr

acki

ng lo

gs;

inve

stig

atio

n re

ports

10

0

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

in p

lace

for

mov

emen

t &

loca

tion

of

cylin

ders

; C

omm

unity

aw

aren

ess

prog

ram

me

57.

U

nder

dos

ing

of

chlo

rine

New

chl

orin

atio

n sy

stem

des

igne

d fo

r wel

ls

2 N

WC

4th

Q 2

008

(2) W

ater

Q

ualit

y In

spec

tor

(Hea

lth

Dep

artm

ent)

chec

ks o

n w

ells

at

leas

t onc

e pe

r m

onth

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

de

ficie

ncie

s w

ho e

nsur

es

that

de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

58.

Mon

itor r

esid

ual

chlo

rine

in

distr

ibut

ion

line

leav

ing

the

wel

l st

atio

n

3 N

WC

O

ngoi

ng

Fiel

d op

erat

or

mon

itors

Cl 2

resi

dual

leve

ls a

t le

ast o

nce

per

shift

Resi

dual

C

l 2<2m

g/l

afte

r pre

-ch

lorin

atio

n

Fiel

d O

pera

tor

troub

lesh

oots

C

l 2 eq

uipm

ent

at w

ell,

incr

ease

dos

e if

equi

pmen

t ok

ay &

ob

serv

e fo

r 2

hour

s, no

im

prov

emen

t sh

ut d

own

wel

l

Prop

erly

cl

eane

d ch

lorin

e co

mpa

rato

rs

Wat

er

Prod

uctio

n Te

am

Lead

er

chec

ks

reco

rds

ever

y w

eek,

ra

ndom

ob

serv

atio

n of

op

erat

ions

Fiel

d op

erat

or

logs

of r

esid

ual

chlo

rine

leve

ls

(dis

tribu

tion

line)

N

on-

conf

orm

ance

s an

d co

rrec

tive

actio

ns

Cal

ibra

tion

reco

rds

Log

of c

hlor

ine

feed

rate

s

10

1

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

Che

ck

com

para

tor

agai

nst

(inte

rnat

iona

l) sta

ndar

d so

lutio

n (tr

acea

ble

to

Fran

ce)

Reco

rds o

f Tea

m

Lead

er a

udits

59.

O

ver d

osin

g of

ch

lorin

e M

onito

r res

idua

l ch

lorin

e in

di

strib

utio

n lin

e le

avin

g th

e w

ell

stat

ion

4 N

WC

O

ngoi

ng

Fiel

d op

erat

or

mon

itors

Cl 2

resi

dual

leve

ls a

t le

ast o

nce

per

shift

Resi

dual

C

l 2<2m

g/l

afte

r pre

-ch

lorin

atio

n

Fiel

d O

pera

tor

troub

lesh

oots

C

l 2 eq

uipm

ent

at w

ell,

incr

ease

dos

e if

equi

pmen

t ok

ay &

ob

serv

e fo

r 2

hour

s, no

im

prov

emen

t sh

ut d

own

wel

l

Prop

erly

cl

eane

d ch

lorin

e co

mpa

rato

rs

Wat

er

Prod

uctio

n Te

am

Lead

er

chec

ks

reco

rds

ever

y w

eek,

ra

ndom

ob

serv

atio

n of

op

erat

ions

C

heck

co

mpa

rato

r ag

ains

t (in

tern

atio

nal)

stand

ard

solu

tion

(trac

eabl

e to

Fr

ance

)

Fiel

d op

erat

or

logs

of r

esid

ual

chlo

rine

leve

ls

(dis

tribu

tion

line)

N

on-

conf

orm

ance

s an

d co

rrec

tive

actio

ns

Cal

ibra

tion

reco

rds

Log

of c

hlor

ine

feed

rate

s Re

cord

s of T

eam

Le

ader

aud

its

10

2

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

60.

Ta

mpe

ring

due

to u

nres

trict

ed

acce

ss &

ille

gal

conn

ectio

ns to

ra

w a

nd tr

eate

d w

ater

pip

es a

t w

ell f

acili

ties

Repa

ir an

d in

stal

l fen

ces,

inst

all d

oors

&

win

dow

s;

relo

cate

sam

ple

taps

to p

reve

nt

easy

acc

ess t

o pr

even

t ille

gal

tapp

ing

into

line

; ut

ilise

non

-co

nven

tiona

l sa

mpl

e ta

ps

rath

er th

an

tradi

tiona

l tap

s; in

stitu

te

neig

hbou

rhoo

d w

atch

pr

ogra

mm

es to

pr

otec

t the

fa

cilit

ies

3 N

WC

4th

Q 2

008

Mob

ile o

pera

tor

chec

ks tw

ice

per

shift

and

repo

rts

brea

ches

to

Wat

er

Prod

uctio

n M

anag

er

Brea

ches

in

infr

astru

ctur

e

Repa

ir de

fect

s

Mob

ile o

pera

tor

repo

rts

61.

N

o ba

ck u

p po

wer

supp

ly

Insta

ll sta

ndby

ge

nera

tors

with

ap

prop

riate

ho

usin

g fo

r tho

se

wel

l ins

talla

tions

th

at su

pply

es

sent

ial s

ervi

ces

e.g.

hos

pita

ls a

nd

ensu

re th

at th

ere

is su

ffici

ent

inte

rcon

nect

ivity

be

twee

n di

strib

utio

n zo

nes;

truc

k w

ater

as r

equi

red

3 N

WC

20

07-

2008

M

obile

ope

rato

r ch

ecks

twic

e pe

r sh

ift a

nd re

ports

to

Wat

er

Prod

uctio

n M

anag

er w

hen

stan

dby

pow

er is

in

use

No

elec

trica

l po

wer

If

stan

dby

gene

rato

r is

not

func

tioni

ng

durin

g po

wer

fa

ilure

the

Mob

ile

Ope

rato

r no

tifie

s the

W

ater

Pr

oduc

tion

Man

ager

and

ar

rang

emen

ts

are

mad

e to

ge

t a m

obile

un

it to

lo

catio

n,

othe

rwis

e

M

obile

ope

rato

r re

ports

10

3

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

restr

ict/r

egul

ate

wat

er su

pply

to

affe

cted

ar

ea u

ntil

pow

er re

turn

s

62.

N

on st

anda

rd

syst

em d

esig

n an

d co

mpo

nent

s ca

uses

del

ays i

n ad

dres

sing

mai

nten

ance

is

sues

as i

t is n

ot

cost

effe

ctiv

e to

st

ock

wid

e va

riety

of l

arge

co

stly

spar

e pa

rts

Stan

dard

ise

syst

em

com

pone

nts

whe

n de

sign

ing

and/

or re

pairi

ng

aspe

cts o

f the

sy

stem

to

faci

litat

e gr

eate

r fle

xibi

lity

in th

e sy

stem

and

de

velo

p a

mec

hani

sm in

do

nor

nego

tiatio

ns to

su

ppor

t st

anda

rdisa

tion

as a

prio

rity

3 N

WC

O

ngoi

ng

63.

In

effe

ctiv

e an

d in

effic

ient

di

sinfe

ctio

n du

e to

the

abse

nce

of

chlo

rine

cont

act

cham

bers

To b

e co

nstru

cted

un

der t

he K

MA

W

ater

Sup

ply

proj

ect

2 N

WC

4th

Q 2

008

(2) W

ater

Q

ualit

y In

spec

tor

(Hea

lth

Dep

artm

ent)

chec

ks o

n w

ells

at

leas

t onc

e pe

r m

onth

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

de

ficie

ncie

s w

ho e

nsur

es

that

de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

10

4

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

ST

OR

AG

E -

TR

EA

TM

EN

T PL

AN

T

64.

In

suffi

cien

t re

serv

oir s

tora

ge

to m

eet p

eak

dem

and

Will

be

addr

esse

d in

the

desi

gn o

f the

up

grad

ed w

ater

tre

atm

ent p

lant

un

der t

he K

MA

W

ater

Sup

ply

Proj

ect b

y in

stal

ling

new

cl

ear w

ater

re

serv

oirs

;

2 N

WC

4th

Q 2

008

(2) W

ater

Q

ualit

y In

spec

tor

(Hea

lth

Dep

artm

ent)

chec

ks o

n tre

atm

ent p

lant

at

leas

t onc

e pe

r m

onth

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

who

en

sure

s tha

t de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

65.

N

on re

mov

al o

f si

lt fr

om

sedi

men

tatio

n ba

sin

in a

tim

ely

man

ner d

ue to

de

sign

lim

itatio

ns

Will

be

addr

esse

d in

the

desi

gn o

f the

up

grad

ed w

ater

tre

atm

ent p

lant

un

der t

he K

MA

W

ater

Sup

ply

Proj

ect b

y re

desi

gnin

g se

dim

enta

tion

basi

n;

3 N

WC

4th

Q 2

008

(2) W

ater

Q

ualit

y In

spec

tor

(Hea

lth

Dep

artm

ent)

chec

ks o

n tre

atm

ent p

lant

at

leas

t onc

e pe

r m

onth

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

who

en

sure

s tha

t de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

66.

Ensu

re g

ood

oper

atio

nal &

m

aint

enan

ce

prac

tices

N

WC

O

ngoi

ng

(2) W

ater

Q

ualit

y In

spec

tor

(Hea

lth

Dep

artm

ent)

chec

ks o

n tre

atm

ent p

lant

at

leas

t onc

e pe

r m

onth

Inef

fect

ive

wat

er

treat

men

t

Wat

er Q

ualit

y In

spec

tor

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

who

en

sure

s tha

t de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of T

/P

oper

atio

ns

by M

OH

Wat

er Q

ualit

y In

spec

tor r

epor

t Le

tter(

s) to

N

WC

rega

rdin

g de

ficie

ncie

s M

OH

ann

ual

audi

t fin

ding

s

10

5

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

D

IST

RIB

U-

TIO

N S

YST

EM

67.

Li

mite

d us

e of

ex

istin

g di

strib

utio

n st

orag

e ta

nks a

nd

an in

abili

ty to

pr

ovid

e co

nsum

ers w

ith

min

imum

of 6

ho

urs w

ater

in

case

of p

lant

shut

do

wn

Will

be

addr

esse

d in

the

desi

gn o

f the

up

grad

ed w

ater

tre

atm

ent p

lant

un

der t

he K

MA

W

ater

Sup

ply

Proj

ect b

y

inst

allin

g ne

w

distr

ibut

ion

stor

age

tank

s

2 N

WC

O

ngoi

ng

(2) F

ield

O

pera

tor

mon

itors

di

strib

utio

n sy

stem

Inef

fect

ive

wat

er

distr

ibut

ion

Fiel

d O

pera

tions

pe

rson

nel

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

who

en

sure

s tha

t de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of

distr

ibut

ion

syst

em b

y M

OH

O

ffice

of

Util

ities

Re

gula

tion

(OU

R)

dete

rmin

es

if Q

ualit

y of

Se

rvic

e St

anda

rds

(QSS

) are

m

et

Fiel

d op

erat

or�s

re

port

Lette

r(s)

to

NW

C re

gard

ing

defic

ienc

ies

MO

H a

nnua

l au

dit f

indi

ngs

OU

R fin

ding

s

68.

Ensu

re g

ood

oper

atio

nal

prac

tices

to

utili

se

distr

ibut

ion

stor

age

whe

n in

stal

led

N

WC

O

ngoi

ng

Fiel

d O

pera

tor

mon

itors

di

strib

utio

n sy

stem

Inef

fect

ive

wat

er

distr

ibut

ion

Fiel

d O

pera

tions

pe

rson

nel

repo

rts

prob

lem

s to

Wat

er

Prod

uctio

n M

anag

er a

t N

WC

who

en

sure

s tha

t de

ficie

ncie

s ar

e ad

dres

sed

Ann

ual a

udit

of

distr

ibut

ion

syst

em b

y M

OH

O

ffice

of

Util

ities

Re

gula

tion

(OU

R)

dete

rmin

es

if Q

ualit

y of

Se

rvic

e St

anda

rds

(QSS

) are

m

et

Fiel

d op

erat

or�s

re

port

Lette

r(s)

to

NW

C re

gard

ing

defic

ienc

ies

MO

H a

nnua

l au

dit f

indi

ngs

OU

R fin

ding

s

69.

Ill

egal

co

nnec

tions

to

distr

ibut

ion

syst

em

(1) R

educ

e pr

essu

re o

n di

strib

utio

n sy

stem

supp

lyin

g

2 (1

) NW

C

Ong

oing

Fi

eld

Ope

rato

r m

onito

rs

distr

ibut

ion

syst

em

Illeg

al

conn

ectio

n Fi

eld

Ope

rato

r re

ports

ille

gal

conn

ectio

n to

W

ater

Fi

eld

oper

ator

�s

repo

rt

10

6

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

cont

ribut

ing

to

the

high

% o

f un

acco

unte

d fo

r w

ater

"Red

Are

as";

co

mm

unity

ou

treac

h pr

ogra

mm

es;

prod

uctio

n Te

am L

eade

r an

d N

on-

reve

nue

Wat

er

(NRW

) D

epar

tmen

t 70

.

(2

) Enf

orce

the

la

w

(2

) Par

ish

Cou

ncil

&

NW

C

Ong

oing

71.

U

nmet

ered

wat

er

supp

ly (s

ocia

l w

ater

such

as

stan

dpip

es) a

nd

mal

func

tioni

ng

met

ers

cont

ribut

ing

to

the

high

% o

f un

acco

unte

d fo

r w

ater

(1) R

atio

nalis

e G

over

nmen

t po

licy

re so

cial

w

ater

;

2 (1

) Min

istry

of

Wat

er;

NEP

A,

Min

istry

of

Hea

lth,

NW

C

Mar

ch

2008

C

entra

l Hea

lth

Com

mitt

ee,

Wat

er Q

ualit

y Su

bcom

mitt

ee

will

ass

ess s

tatu

s in

June

200

8

72.

(2) E

nsur

e th

at

exis

ting

met

ers

are

func

tiona

l an

d m

eter

un

met

ered

cu

stom

ers

(2

) NW

C

Ong

oing

Fi

eld

oper

atio

ns

pers

onne

l/ m

eter

re

ader

s to

repo

rt on

non

-fu

nctio

nal o

r m

issin

g m

eter

s

Es

timat

e w

ater

co

nsum

ptio

n

Reco

rds o

f m

eter

ed

cust

omer

s ver

sus

unm

eter

ed

cust

omer

s

73.

Le

aks o

n tru

nk

mai

n an

d di

strib

utio

n sy

stem

, old

pip

es

in so

me

area

s co

ntrib

utin

g to

th

e hi

gh %

of

unac

coun

ted

for

wat

er

Con

tinue

un

acco

unte

d fo

r w

ater

con

trol

prog

ram

me

incl

udin

g le

ak

dete

ctio

n &

re

pair,

pre

ssur

e zo

ning

, flo

w

cont

rol;

ensu

re

good

ope

ratio

nal

netw

ork;

KM

A

proj

ect w

ill

inst

all n

ew

2 N

WC

O

ngoi

ng

NRW

C

oord

inat

or �

Ea

ster

n Id

entif

ies

prob

lem

s to

be

addr

esse

d by

Fi

eld

Ope

ratio

ns

Man

ager

10

7

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

distr

ibut

ion

mai

ns

74.

D

eman

d ex

ceed

ing

supp

ly

- ina

dequ

ate

supp

ly c

over

age;

un

serv

ed

com

mun

ities

; ne

w re

side

ntia

l de

velo

pmen

ts;

no c

hang

e in

qu

antit

y of

wat

er

supp

lied

Will

be

addr

esse

d in

the

desi

gn o

f the

up

grad

ed w

ater

tre

atm

ent p

lant

un

der t

he K

MA

W

ater

Sup

ply

Proj

ect b

y th

e in

stal

latio

n of

ne

w d

istri

butio

n m

ains

, mor

e tre

ated

wat

er

stor

age

and

incr

ease

d pr

oduc

tion

at

wel

ls u

p to

su

stai

nabl

e lim

its;

coor

dina

tion

betw

een

deve

lopm

ent

plan

ners

and

w

ater

supp

ly

syst

em

oper

ator

s; pr

ereq

uisit

e fo

r de

velo

pmen

t ap

prov

al to

co

nfirm

the

avai

labi

lity

of

wat

er; p

rom

ote

dem

and

side

m

anag

emen

t

2 M

inis

try o

f C

entra

l H

ealth

C

omm

ittee

, W

ater

Q

ualit

y Su

bcom

mitt

ee w

ill

asse

ss st

atus

in

June

20

08; S

t. C

athe

rine

Paris

h C

ounc

il,

NW

C

4th

Q

2008

C

entra

l Hea

lth

Com

mitt

ee,

Wat

er Q

ualit

y Su

bcom

mitt

ee

will

ass

ess s

tatu

s in

June

200

8

Re

stric

t wat

er

supp

ly a

s ne

cess

ary

to

ensu

re th

at

OU

R Q

SS a

re

not

cont

rave

ned

Com

plia

nce

with

OU

R Q

SS

OU

R R

epor

t

10

8

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

thro

ugh

polic

y an

d re

gula

tions

75.

Lo

w s

yste

m

pres

sure

if o

ne

supp

ly s

ourc

e is

ou

t of s

ervi

ce

Will

be

addr

esse

d in

the

desi

gn o

f the

up

grad

ed w

ater

tre

atm

ent p

lant

un

der t

he K

MA

W

ater

Sup

ply

Proj

ect;

max

imiz

e in

terc

onne

ctiv

ity

on th

e di

strib

utio

n sy

stem

, ens

ure

good

ope

ratio

nal

and

mai

nten

ance

pr

otoc

ols;

secu

re

valv

es a

nd

acce

ss p

oint

s on

distr

ibut

ion

syst

em,

2 N

WC

4th

Q 2

008

Cen

tral H

ealth

C

omm

ittee

, W

ater

Qua

lity

Subc

omm

ittee

w

ill a

sses

s sta

tus

in Ju

ne 2

008

76.

Insta

ll pr

essu

re

gaug

es u

nder

K

MA

pro

ject

N

WC

4t

h Q

20

08

Cen

tral H

ealth

C

omm

ittee

, W

ater

Qua

lity

Subc

omm

ittee

w

ill a

sses

s sta

tus

in Ju

ne 2

008

10

9

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

77.

So

me

loca

tion

of

valv

es u

nkno

wn

due

to a

bsen

ce o

f dr

awin

gs a

nd

bein

g ca

rele

ssly

co

vere

d du

ring

road

wor

ks

(1) C

oord

inat

ion

betw

een

NW

C,

NW

A a

nd P

arish

C

ounc

il

3 (1

) NW

C,

NW

A a

nd

Paris

h C

ounc

il

Janu

ary

2008

C

entra

l Hea

lth

Com

mitt

ee,

Wat

er Q

ualit

y Su

bcom

mitt

ee

will

ass

ess s

tatu

s M

arch

200

8

78.

(2) L

ibra

rian

ensu

res t

hat a

ll do

cum

enta

tion

mai

ntai

ned

(ele

ctro

nic

&

hard

cop

y)

Com

preh

ensi

ve

GIS

in p

lace

(2

) NW

C

Ong

oing

C

entra

l Hea

lth

Com

mitt

ee,

Wat

er Q

ualit

y Su

bcom

mitt

ee

will

ass

ess s

tatu

s Ju

ne 2

008

79.

D

estru

ctio

n of

di

strib

utio

n sy

stem

co

mpo

nent

s due

to

neg

ligen

ce o

f ot

her u

tiliti

es e

.g.

JPSC

o., C

able

&

Wire

less

and

C

able

serv

ice

prov

ider

s

(1) C

oord

inat

ion

betw

een

utili

ties,

the

Paris

h C

ounc

il an

d N

WC

3 N

WC

&

Paris

h C

ounc

il

C

entra

l Hea

lth

Com

mitt

ee,

Wat

er Q

ualit

y Su

bcom

mitt

ee

will

ass

ess s

tatu

s M

arch

200

8

80.

(2) N

WC

m

aint

ains

dr

awin

gs

N

WC

O

ngoi

ng

Cen

tral H

ealth

C

omm

ittee

, W

ater

Qua

lity

Subc

omm

ittee

w

ill a

sses

s sta

tus

June

200

8

81.

D

amag

e to

wat

er

pipe

lines

and

do

mes

tic

plum

bing

in

fras

truct

ure

due

to a

bsen

ce o

f

App

rova

l by

the

NW

C &

Par

ish

Cou

ncil

of

pipe

line

syst

em

desi

gned

by

Dev

elop

er

3 N

WC

&

Paris

h C

ounc

il

Ong

oing

C

entra

l Hea

lth

Com

mitt

ee,

Wat

er Q

ualit

y Su

bcom

mitt

ee

will

ass

ess s

tatu

s Ju

ne 2

008

Pr

even

t de

velo

per

from

co

mm

issi

onin

g pi

pelin

e

11

0

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

air r

elie

f val

ves

82.

N

on-s

teril

isat

ion

of n

ew/re

paire

d pi

pelin

es

NW

C a

nd P

arish

C

ounc

il to

pr

ovid

e M

OH

w

ith re

port

on

ster

ilisa

tion

of

new

/repa

ired

pipe

lines

and

if

pipe

lines

are

co

nstru

cted

ac

cord

ing

to

desi

gn

1 M

OH

O

ngoi

ng

Cen

tral H

ealth

C

omm

ittee

, W

ater

Qua

lity

Subc

omm

ittee

w

ill a

sses

s sta

tus

June

200

8

83.

C

heck

val

ves

hous

ehol

d -

abse

nt o

r in

effe

ctiv

e

Repl

ace

inef

fect

ive

chec

k va

lves

and

insta

ll m

issin

g ch

eck

valv

es (K

MA

pr

ojec

t to

addr

ess t

o a

limite

d ex

tent

); ha

ve su

ffici

ent

unifo

rmity

w

ithin

syst

em so

th

at la

rge

varie

ty

of d

iffer

ent t

ypes

of

pum

ps d

o no

t ha

ve to

be

kept

in

inve

ntor

y

Dev

elop

and

im

plem

ent

polic

y to

insta

ll ch

eck

valv

es o

n ho

useh

old

conn

ectio

ns.

2 N

WC

&

Paris

h C

ounc

il

Ong

oing

C

entra

l Hea

lth

Com

mitt

ee,

Wat

er Q

ualit

y Su

bcom

mitt

ee

will

ass

ess s

tatu

s Ju

ne 2

008

11

1

H

azar

d ev

ent/s

ourc

e/

caus

e

Con

trol

M

easu

res

Prio

rity

R

espo

nsib

le

Age

ncy

Tim

e Fr

ame

Mon

itori

ng

Proc

edur

es

Cri

tical

L

imits

D

evia

tion

proc

edur

es

Ver

ifica

tion

Rec

ords

84.

D

ead

ends

on

distr

ibut

ion

lines

ca

usin

g st

agna

tion

in th

e w

ater

line

Des

ign

dead

en

ds w

ith

was

hout

val

ves

to e

nabl

e flu

shin

g of

the

syst

em

Avo

id d

ead

end

desi

gns w

here

po

ssib

le

Mod

ify e

xist

ing

dead

end

s whe

re

poss

ible

Fl

ushi

ng

prog

ram

me

whe

re d

ead

ends

oc

cur

Dev

elop

wat

er

tank

Insta

llatio

n St

anda

rds

incl

udin

g th

e us

e of

chl

orin

e co

mpa

tible

ch

eck

valv

es

4 N

WC

O

ngoi

ng

Cen

tral H

ealth

C

omm

ittee

, W

ater

Qua

lity

Subc

omm

ittee

w

ill a

sses

s sta

tus

June

200

8

SU

RV

EIL

-L

AN

CE

85.

La

ck o

f a

com

preh

ensi

ve

wat

er q

ualit

y su

rvei

llanc

e pl

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