Presentation on theme: "IR. MD. WAHID BIN MOHD NOR DIRECTOR WATER AUDIT DIVISION SEPTEMBER 2012 AUDIT ON WATER WATER QUALITY MANAGEMENT IN MALAYSIA NATIONAL AUDIT DEPARTMENT."— Presentation transcript:
IR. MD. WAHID BIN MOHD NOR DIRECTOR WATER AUDIT DIVISION SEPTEMBER 2012 AUDIT ON WATER WATER QUALITY MANAGEMENT IN MALAYSIA NATIONAL AUDIT DEPARTMENT
1. Introduction - Key National Statistics (Water) - Facts About Water - Water Regulatory Agency 2. Water Cycle 3. Objective, Scope & Methodology 4. Line Of Inquiry 5. Audit Finding & Issues 6. Lesson Learn, Impact To The Public 7. Way Forward CONTENT
KEY NATIONAL STATISTICS (WATER) Raw Water Source : Mainly Surface Water with minor groundwater Design Capacity : 16,771 MLD Production Capacity : 14,065 MLD Total No. of Treatment plant : 458 Total Length of Pipes : 131,286 KM Pipe Material : AC (31.9%), PE (16.8%), MS (24.7%), uPVC (15.5%), DI (7.4%), CI (1.2%), Others (2.5%) Total Connection :6,459,663 Connections : Domestic (86.7%), Non Domestic (13.3%) Per capita Consumption : 225 litre/cap/d NRW : 36% Population Served : Overall (94.2%) Urban (96.8%), Rural (89.7%)
FACTS ABOUT WATER 1.Over 1.5 billion people do not have access to clean, safe water. 2.Almost 4 million people die each year from water related diseases. 3.43% of water related deaths are due to diarrhea. 4.98% of water related deaths occur in the developing world. 5.Unsafe water is the biggest killer of children under five; around 90% of all diarrheal deaths are in this age group. 6.Lack of access to clean water and sanitation has claimed more lives through disease than any war through guns.
WATER REGULATORY AGENCY SOURCE DAM RIVER TREATMENT BALANCING RESERVOIR DISTRIBUTION SERVICE RESERVOIR TRUNK MAIN DISTRIBUTION MAIN CONSUMER STATEFEDERAL CATCHMENT AREA WATER TREATMENT PLANT After Federal Constitution Amendment
THE WATER CYCLE Water Cycle - Nature Water Cycle - Built Water Cycle Total Water Recycle
8 OBJECTIVE OF STUDY To determine whether the planning, implementation, and monitoring drinking water quality has been managed properly, efficiently and effectively in accordance with the standards to ensure that drinking water supplied is safe and acceptable to consumers.
An audit covers 3 years from 2005 to 2007 to carry out analysis of data. Whereas in 2008, it will lead to an audit inspection on site. Involve the cooperation of: 1.State Water Operator - Covered the whole country 2.MOH (Ministry of Health Malaysia) 3.SPAN (National Water Services Commission) for the states in Peninsular only and Regulatory Bodies of Water (Sabah & Sarawak). Covers the whole course starting from the raw water source to the user. The study was carried out on networks / course for the 42 /453 of the treatment plant from the treatment plant in the country selected as a sample for an audit of drinking water quality management studies. THE SCOPE OF THE AUDIT
METHODOLOGY Audit methodology is included: 1.Samples were collected by the MOH and the State Water Supply Agency. 2.Inspection of the sampling stations. 3.Carry out analysis of data. 4.Ensure procedures are in compliance with standard sampling. 5.Carry out comparison of the sampling schedule, the performance of water quality and water quality trends for each state. 6.Implement the questionnaire concerning the quality of water supplied to consumers. 7.Comparison of unit cost and quality of water supplied.
11 National Water Quality Standards for Malaysia (DOE) ClassificationUsage Class I Conservation of natural environment. Water supply l – Practically no treatment necessary. Fishery l – Very sensitive aquatic species Class IIA Water supply ll – Conventional treatment required Fishery ll – Sensitive aquatic species Class IIBRecreational use with body contact Class III Water supply lll – Extensive treatment required Fishery lll – Common of economic value and tolerant species; livestock drinking Class IVIrrigation Class VNone of the above ParametersMaximum Acceptable Value Fluoride0.4 – 0.6 mg/l Turbidity< 5 NTU pH Colour< 15 TCU Free Residuel Chlorine0.2 – 5.0 mg/l Aluminium< 0.2 mg/l Manganese< 0.1 mg/l National Drinking Water Quality Standards Source: Ministry of Health Source: DOE
TEST PARAMETERS ON THE WATER (PHYSICAL / CHEMICAL / BIOLOGICAL) The tests carried out: - 1.pH 2.Turbidity 3.Colour 4.Free Residuel Chlorine 5.Iron 6.Manganese 7.Aluminium 8.Ammonia 9.Fluoride 10.Total/Faecal Coliform Physical Test Chemical Test Biological Test
LINE OF INQUIRY 1.Government Policy 2.Law, Guidelines and Regulations 3.Water Quality Program Water Quality Testing Drinking Water Quality Standards 4.Human Capital Organizational Structure Manpower Requirements 5.Water Quality Testing Equipment Water Quality Testing Equipment Requirements Water Quality Testing Equipment Maintenance 6.Financial Requirements 7.Maintenance of Records Record of Water Quality Testing Public complaints 8.Monitoring mechanism
AUDIT FINDINGS…… There are number of weaknesses found in the drinking water quality management: Most Catchment Area Not Gazetted. Lack Of Awareness Among The State Water Authorities. High Cost Involved Fragmentation Raw Water Quality -Deterioration In Water Quality Illegal Activities In The Catchment Area - Farming, - Agriculture - Livestock - Garbage Disposal - Deforestation Illegal Activities In The River Basin - Effluent Discharge - From STP - Leachate Discharge – Solid Waste Disposal (Landfill) - Industrial Discharge – Chemical & Biological - Sludge Discharge From WTP - Domestic Discharge – Grey & Dark Water - Restaurant Discharge – Oil & Grease - Sand Mining Water Treatment Plant Conventional Treatment Process Competence Staff Laboratory Equipment Fluoridation Dosage System Water Catchment Area, Border Basin, Dam And Reserve Forest in the Selangor state
StateArea (hectares) Status / Notes Was Gazette (hectares) Not yet Gazette (hectares) In Process (hectares) Perlis Gazetting of the dam on only Kedah 139, , , Penang6, Perak310, , , Selangor47, , , N. Sembilan47, MelaccaGazetting of the river only Johor85, Pahang285, , , Terengganu49, Kelantan35, Sabah3,804, Sarawak11,537, ,079, ,458, Total16,349, ,780, ,297, , Table : Area and Status of Water Catchment Forest Gazette Source: Department of Forestry / Regulatory Affairs / Water Supply Entities % water catchment forest gazetted = 29% More >70% still not gazetted In process of gazetted = 1.66%
Ageing Infrastructure 1. Treatment Plant -Using Conventional Treatment Vs Detoriate Raw Water Quality - Laboratory Equipment – Unreliable Data - 64% of Fluoride Dosing System not Functional 2. Distribution System - Main Pipeline & Reticulation System - Burst & Leaks – Turbid Water, - Corroded Pipe –Rusty Coloured Water - Sampling Stations - Site Testing – In-situ Test – equipment not well maintain - Weekly/ Monthly Testing – Unreliable Data - cased by – wrong sampling procedure - sample not send on time 3. Plumbing System - G.I Communications Pipe - Corroded - Old Storage Tank – Corroded – (press steel tank) – resulting in colored water AUDIT FINDINGS…… Not calibrated Old equipment
Operation & Maintenance 1.Reservoir -Unscheduled Cleaning – Sediment Built Up -Coloured & Odour Water 2. Pipe Network -Unscheduled Cleaning/Flushing & Scouring – Sediment Built Up -Visual Appearance – Coloured Water -Smell & Odour Water -Delayed Pipe Burst & Leak Repair – Back Siphoned 3. Violation On Water Quality - Quality Assurance Program (QAP) Fluoride Chlorine Alumminium Sulphate AUDIT FINDINGS…… Flushing Activities Before After
States % VIOLATION Res Cl (2.8) E-coli (0.5) E-coli & Res Cl (0.3) NTU (3.2) Al (10.2) Res Cl (2.8) E-coli (0.4) E-coli & Res Cl (0.3) NTU (2.0) Al (10.2) Res Cl (2.8) E-coli (0.4) E-coli & Res Cl (0.3) NTU (2.0) Al (10.2) Perlis Kedah Penang Perak Selangor N. Sembilan Melaka Johor Pahang Terenggan u Kelantan Sabah Sarawak Note: % who violate QAP Source: KKM DRINKING WATER QUALITY PERFORMANCE BASED QAP QAP violation Set By MOH Mostly violate on parameters: Residual chlorine Alumminium
Drinking Water Quality Performance Among State Based on the QAP Violation average QAP in the States for the Period 2006 to 2008
IN-SITU WATER TEST & SAMPLING
Water quality before the work of air-scouring Water quality in the work of air- scouring Water quality after the work of air-scouring DESCRIPTION OF WORKS AIR SCOURING
RESERVOIR CLEANING BEFORE CLEANING AFTER CLEANING
WAY FORWARD - SUSTAINABLE WATER SUPPLY - Integrated Water Resources Management (IWRM) Gazettement On Catchment Area Enforcement Integration Of Water Related Entity -Demand Management - Optimum Daily Consumption - NRW Management - Recycle Water - Recycle Sewerage Water - Recycle Industry Water - Green Technology - Renewable Resources - Ground Water Replenished - Rain Water Harvesting - Roof Top - Surface Runoff