Sewerage Infrastructure Development in Sarawak

Lau Hieng UngSewerage Services Department Sarawak

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CONTENTA. Existing Sewerage Infrastructure

B. Legal Framework

C. Organizational Set Up

D. Current Development

E. Future Direction

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Area in sq km Population (2014 estimate)

Malaysia 329,847 30.6 millionSarawak 124,450 2.67 million

37.7% 8.7%

Depends almost entirely on individual septic tanks

Commercial complexes, major institutions and high-rise buildings are provided with Imhoff tanks or small package plants

Grey water, oil and grease are not collected or treated

A. Existing Sewerage Infrastructure

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Existing Sewerage Infrastructures in Sarawak

A. Sewerage Inventory as at 31 Dec 2013

Population Equivalent Connected to Centralised System as at 31 May 2015

Type of Treatment Population Equivalent (PE)Septic Tank 2,007,820

Communal Septic Tank 10,900Package Plant 126,926

Centralised System 128,893Total 2,274,539

Area Population Equivalent (PE)Kuching Package 1 68,253Bintulu Town 87,550

Source: Inventory of JPPS

Rancangan Malaysia Ke-11 (RMK-11)

Include Public Sewage Treatment Plant, Private Sewage Treatment Plant and Communal Septic Tank

Sewerage Systems and Services Ordinance, 2005

Applies to areas under Municipal Councils and City Administration ( 50% of State Population)

Powers, functions and duties conferred by this Ordinance are vested in the Urban Sewerage Systems Authority

Director of Sewerage Services Department is appointed to assume the role of the Authority

B. LEGAL FRAMEWORK

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To plan, design and establish public sewerage systems(Minister Responsible for Urban Development)

To appoint a management agency to manage, operate and maintain any public sewerage system or to provide sewerage services(Minister Responsible for Environment)

To supervise, monitor and provide direction for the performance and activities of any management agency

Powers and Functions of The Authority

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To issue guidelines for design standards and specification of septic tank, private and public sewerage systems

To regulate the process of treatment and disposal of sewage and sewage sludge and its by-products

To fix fees and charges for sewerage services provided by the management agency and the payment or recovery of such fees or charges (State Cabinet)

Powers and Functions of The Authority

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MMKN approved the creation of Sewerage Services Department on 12.04.2007

Sewerage Systems and Services Ordinance, 2005 was put in force on 01.10.2007

C. ORGANISATION Department Set up

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D. Current Development• Systematic planning and development of Sewerage Infrastructures in Sarawak commenced under Ninth Malaysia Plan(from 2006)• Main Emphases are on : (a) Provision of a Centralized Sewerage System for Kuching City (b) Provision of a Centralized Sewerage System for Miri City (c) Provision of Septic Sludge Treatment Plants

for major towns (d) Formulation of Centralized Sewerage System

Master Plans for major towns

Kuching City Centralised Sewerage System Masterplan (2003)

13Centralized Sewerage System in Kuching City (Package 1)

-Proposed 67,000 PE with Trunk Sewer for 270,000 PE

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Key Features of Kuching Centralised Sewerage System Package 1 Which Will Set the Direction for Future Centralised Sewerage Infrastructure Development In Sarawak

• True gravity flow – one pump station

• Micro-Tunneling extensively used

• Modular Construction of Treatment Plant

• Inclusion of Property Connections in the Contract

Shaft Construction in Progress15

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Tunneling with 1.5 m diameter Tunnel Boring Machine (TBM) in progress at Manhole T12 (Trunk Sewer)

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1.5 m diameter Connecting MH-T6 to MH-T7A Under Sarawak River

Miri Centralised Wastewater Management System Phase 1Main Components:

a)Centralised Sewage Treatment Plant (100,000PE module)

b)Sewer Network Trunk Sewer (0.6m to

1.8m dia.)–15km Local Sewer (0.225m to

0.45m dia.)–51km c) Property Connection -

3,000 properties

Status : Survey and Design Stage (target

to call tender by February 2016)

Septic Sludge Treatment Plants

To enable Scheduled Desludging of septic tanks and package plants to improve their treatment efficiency.

Existing three plant : Matang, Sibu and Miri.Priority Towns: Sarikei/Bintangor, Sri

Aman/Betong, Kapit and Limbang.Mechanism: SSD builds and operates the plant.

Local councils desludge and send sludge to the plant for treatment. Local councils collect through council rates and pay for the operation of the plant.

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Master Plan Studies

Cities and municipalities currently with Central Sewerage Master Plans are :Kuching (2003), Sibu (2009) and Miri (2009). Bintulu Sewerage Master Plan is completed by Bintulu Development Authority (1980’s).

Priority towns for Master Plan Studies are:Samarahan, Mukah and Sarikei/Bintangor.

E. Future Direction

Project Financing

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Capital Expenditure by Government

Operating Expenditure by Users

Institutional ArrangementDepartment shall plan, implement and

operate new public centralised sewerage systems.

Local authorities will still operate existing treatment systems until these are rationalised.

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Public Acceptance/Rejection Individual Septic Tanks are generally acceptable to

the public and it costs them nothing. We need awareness programs and public relation

exercise to change this mindset.

We have to move the mindset of the general public from “sanitation and public health” to “water resource and environmental protection”.

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Our Success will depend on:

Efficient Management and Public Relation:Construction Stage (traffic management and

property damages)

Connection Stage (enter private properties)

Operation and Maintenance Stage (billing)

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Thank Youwww.ssd.sarawak.gov.my