Malaysian Standard for Drinking Water

8/14/2019 Malaysian Standard for Drinking Water

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I R. MD. WAHID BIN MOHD NORDIRECTOR WATER AUDIT DI VI SION

SEPTEMBER 2012

UDIT ON W TERW TER QU LITY M N GEMENT IN

M L YSI

NATIONAL AUDIT DEPARTMENT


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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 & Issues6. Lesson Learn, Impact To The Public

7. Way Forward

CONTENT


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ClimateChange


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KEY NATIONAL STATISTICS(WATER) - 2010

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%)


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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 morelivesthrough disease than any war through guns.


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WATER REGULATORY AGENCY

SOURCE

DAM

RIVER

TREATMENT

BALANCING

RESERVOIR

DISTRIBUTION

SERVICE

RESERVOIR

CONSUMER

l

STATE FEDERAL

CATCHMENT AREA

WATER TREATMENT

PLANT

After Federal Constitution Amendment


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THE WATER CYCLE

Water Cycle

- Nature Water Cycle

- Built Water Cycle Total Water Recycle
http://rds.yahoo.com/_ylt=A0S020mRZAxNnCAAtpWjzbkF/SIG=12rm0b4r2/EXP=1292744209/**http:/www.sca.nsw.gov.au/__data/assets/image/0004/4738/water_cycle.png


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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 watersupplied is safe and acceptable to consumers.


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An audit covers 3 years from 2005 to 2007 to carry out

analysis of data. Whereas in 2008, it will lead to an auditinspection 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


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METHODOLOGYAudit 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 withstandard 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.


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TEST PARAMETERS ON THE WATER

(PHYSICAL / CHEMICAL / BIOLOGICAL)

The tests carried out: -

1. pH

2. Turbidity

3. Colour4. Free Residuel Chlorine

5. Iron

6. Manganese

7. Aluminium8. Ammonia

9. Fluoride

10.Total/Faecal Coliform

Physical Test

Chemical Test

Biological Test


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LINE OF INQUIRY

1. Government Policy

2. Law, Guidelines and Regulations3. 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 RecordsRecord of Water Quality Testing

Public complaints

8. Monitoring mechanism


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Ageing Infrastructure

1. Treatment Plant

- Using Conventional Treatment Vs Detoriate Raw Water Quality- Laboratory EquipmentUnreliable Data

- 64% of Fluoride Dosing System not Functional

2. Distribution System

- Main Pipeline & Reticulation System-Burst & LeaksTurbid Water,

- Corroded PipeRusty Coloured Water

- Sampling Stations

- Site TestingIn-situ Testequipment not well maintain

- Weekly/ Monthly TestingUnreliable Data

- cased bywrong sampling procedure- sample not send on time

3. Plumbing System

- G.I Communications Pipe - Corroded

- Old Storage TankCorroded (press steel tank)resulting in colored water

UDIT FINDINGS

Not calibrated

Old equipment


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Operation & Maintenance1. Reservo ir

- Unscheduled CleaningSediment

Built Up- Coloured & Odour Water

2. Pipe Network

- Unscheduled Cleaning/Flushing &

ScouringSediment Built Up- Visual AppearanceColoured Water

- Smell & Odour Water

- Delayed Pipe Burst & Leak Repair

Back Siphoned

3. Violation On Water Quality - Quality

Assurance Program (QAP)

Fluoride

Chlorine

Alumminium Sulphate

UDIT FINDINGS

Flushing Activities

Before

After

DRINKING WATER QUALITY PERFORMANCE


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States

% VIOLATION

2006 2007 2008

Res

Cl

(2.8)

E-col i

(0.5)

E-col i&

Res

Cl

(0.3)

NTU

(3.2)

Al

(10.2)

Res

Cl

(2.8)

E-col i

(0.4)

E-col i&

Res

Cl

(0.3)

NTU

(2.0)

Al

(10.2)

Res

Cl

(2.8)

E-col i

(0.4)

E-col i&

Res

Cl

(0.3)

NTU

(2.0)

Al

(10.2)

Perlis 0.55 0.73 0 0 37.72 2.52 2.70 2.70 0 48.18 4.50 4.60 4.23 0 2.48

Kedah 1.65 0.26 0.31 2.93 11.85 2.30 0.43 0.21 5.71 10.35 1.60 0.30 0.16 4.98 2.93

Penang 2.33 0.18 0.03 0.21 4.67 2.41 0.18 0.12 0.45 7.36 0.43 0.06 0 0.32 0.98

Perak 0.51 0.22 0.06 0.82 9.75 1.00 0.06 0.03 1.98 12.23 1.18 0.29 0.03 2.77 2.64

Selangor 3.4 0.1 0.0 0.4 9.6 2.0 0.0 0.0 0.2 5.2 1.74 0.01 0 0.28 1.52

N.

Sembilan2.22 0.38 0.34 2.72 20.72 1.77 0.45 0.09 2.11 18.77 2.83 0.25 0.11 3.33 4.20

Melaka 3.36 0.21 0.03 1.11 8.96 1.45 0.03 0.03 0.45 3.81 0.96 0.12 0 0.31 1.28

Johor 5.41 0.29 0.03 0.56 26.26 5.58 0.73 0.05 0.98 28.31 2.06 0.30 0.02 0.89 4.66

Pahang 2.24 1.73 1.09 3.74 21.27 2.13 0.94 0.62 2.34 23.49 2.21 1.30 0.54 4.54 4.79

Terenggan

u0.6 0.1 0.0 0.9 9.1 0.7 0.1 0.0 1.6 9.4 0.1 0.0 0.0 0.8 1.0

Kelantan 5.63 0.15 0.44 7.22 17.89 5.17 0.42 0.25 10.63 18.98 4.80 0.85 0.67 17.81 5.60

Sabah 7.54 0.34 1.24 8.46 22.14 5.17 0.68 1.23 5.83 19.0 6.94 4.53 2.80 12.27 27.83

Sarawak 1.18 0.26 0.00 0.29 22.81 1.27 0.28 0.00 0.15 24.42 1.68 0.66 0.01 0.43 22.14

Note: % who violate QAP

Source: KKM

DRINKING WATER QUALITY PERFORMANCE

BASED QAPQAP vio lat ion Set By MOH

Mostly violate on parameters:

Residual chlorine

Alumminium


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Drinking Water Quality Performance Among State Based on

the QAP

Violation average QAP in the States for the Period

2006 to 2008


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IN-SITU WATER TEST & SAMPLING


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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


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RESERVOIR CLEANING

BEFORE CLEANING

AFTER CLEANING


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WAY FORWARD - SUSTAINABLE

WATER SUPPLY

Integration Of Water Related

Entity

-Demand Management

- Optimum Daily Consumption

- NRW Management

- Recycle Water

- Recycle Sewerage Water- Recycle Industry Water

- Green Technology


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Malaysian Standard for Drinking Water