SPAN DW 0101:2011

STANDARD AND TYPICAL DRAWING

FOR SEWERAGE SYSTEM Part 1: Sewer and Appurtenances – Gravity Sewer

TECHNICAL

DRAWING

Technical Standards and Compliance Division

Sewerage Regulatory Department

No part of this publication may be reproduced, distributed, transmitted, stored in a retrieval system, or reduced to any electronic medium without the written authority of National Water Services Commission. National Water Services Commission and Registered Certifying Agencies employees are permitted to copy and use the information in this publication, for internal purposes only. Changes may be made periodically to the information herein. ISBN 978-983-44456-4-5 First Edition February 2012 Published by Suruhanjaya Perkhidmatan Air Negara (National Water Services Commission) Prima Avebue 7, Block 3510 Jalan Teknokrat 6 63000 Cyberjaya Selangor Malaysia

SPAN DW 0101:2011

FOREWORD National Water Services Commission (SPAN) was established in 2007 to regulate the water services industry in Malaysia. SPAN envisions a sustainable, reliable and affordable water services for all by regulating the water services industry through fair, effective and transparent implementation of the Water Services Industry Act (Act 655). Since its inception, SPAN has been fully committed in instituting improvements including the emphasis on raising standards and performance in the country’s water and sewerage services sector. Besides this, SPAN aims to increase its efforts towards improving the quality and operational efficiency of water and sewerage services industry to ensure sustainability. One of the approaches in line with this goal is by developing technical drawings for sewerage systems used in the industry. Hence, the identification and evaluation of national, regional and international standards have been made by SPAN’s Sewerage Regulatory Department to formulate technical and performance specifications for adaptation in sewerage industry. This publication of Technical Drawing on Standard and Typical Drawing for Sewerage System Part 1: Sewer and Appurtenances – Gravity Sewer is a result of a joint effort of the various relevant stakeholders of the industry. The drawing contains standardisation criteria for gravity sewers utilising both rigid and flexible pipes as a guiding principle for their design and construction requirements. The development of technical and performance specifications in the form of a technical drawing is crucial for a higher and uniformed standard which will surely benefit the local sewerage industry. With its publication, it is hoped that it will contribute towards better planned and well-organised development of new sewerage systems to fulfil long-term infrastructure requirements and obligations. Dato’ Teo Yen Hua Chief Executive Officer National Water Services Commission (SPAN)

SPAN DW 0101:2011

ACKNOWLEDGEMENT To date, SPAN had published three (3) volumes of Malaysian Sewerage Industry Guidelines and one (1) Technical Specification which are used nationwide. This publication is another collaborative effort by SPAN to produce a document on technical drawing for sewerage system. It would not had been possible without the joint effort of industry stakeholders namely representatives from Association of Consulting Engineers Malaysia (ACEM), Association of Environmental Consultants and Contractors of Malaysia (AECCOM), Indah Water Konsortium (IWK), Public Works Department Malaysia (JKR) and Sewerage Services Department (JPP). The commitment and cooperation shown by the members of TWG has been exemplary. We also would like to record our utmost appreciation to all who had been involved in the preparation and publication of this document. We envisaged that many more technical drawings publication be produced and hope for continuous support from the industry players. The System, Product, Material and Research & Development Committee of National Water Services Commission (SPAN) comprise representatives from: Department of Standards Malaysia (DSM) Ministry of Science, Technology and Innovation (MOSTI) National Water Services Commission (SPAN) Public Works Department Malaysia (JKR) Sewerage Services Department (JPP) Water Supply Department (JBA) The Technical Working Group for Technical Drawing on Standard and Typical Drawing for Sewerage System Part 1: Sewer and Appurtenances – Gravity Sewer consists of representatives from: Association of Consulting Engineers Malaysia (ACEM) Association of Environmental Consultants and Companies of Malaysia (AECCOM) Indah Water Konsortium Sdn. Bhd. (IWK) National Water Services Commission (SPAN) Public Works Department Malaysia (JKR) Sewerage Services Department (JPP) Mohd Ridhuan bin Ismail Executive Director Sewerage Regulatory Department

SPAN DW 0101:2011

COMMITTEE REPRESENTATION

Members of System, Product, Material and Research & Development Committee of National Water Services Commission (SPAN): Y. Bhg. Dato’ Ir. Syed Muhammad Shahbudin (Chairman) SPAN Y. Bhg. Dato’ Dr. Halim Man SPAN Y. Bhg. Datuk Marimuthu Nadason SPAN Y. Bhg. Dato’ Teo Yen Hua SPAN Ir. Lee Koon Yew SPAN Mr. Mohd. Ridhuan bin Ismail SPAN Mr. Marzuki bin Mohammad SPAN Ms. Punita Nook Naidu SPAN Ms. Siti Nurshima binti Mohd. Soffe SPAN Ms. Nurhayati Azian binti Haji Noh SPAN Ms. Siti Aisah Md. Lasim SPAN Tn. Hj Ahmad Nazri Hj Md. Nor JPP Mr. Abd. Ghafar Ismail JBA Ir. Nasir bin Abdul Hamed PWD Ir. Ismail Abd Rahman PWD Mr. Wan Rukiman Wan Mamat DSM Members of Technical Working Group for Technical Drawing on Standard and Typical Drawing for Sewerage System Part 1: Sewer and Appurtenances – Gravity Sewer Ms. Punita Nook Naidu SPAN Ms. Recca Thamarajah SPAN Ms. Jamaiatul Lailah binti Mohd. Jais SPAN Mr. Iwan Nazri bin Mohd. Nordin SPAN Mr. Ahmad Hafizullah Amir bin Ahmad Razali SPAN Mr. Abd. Ghani bin Mat Daud SPAN Mr. Mohd. Omar Mohd. Haris JPP Mr. Ahmad Nazari Md. Nor JPP Mr. Hazmi bin Ramli JPP Mr. Mohd. Ikhwan Ahmad JPP Mr. Hasrul Nizam Abd. Rahman JKR En. Mohd. Zahri bin Seman JKR Ir. Mohd. Adnan bin Md Dom IWK Ir. Khor Bee Chin IWK Mr. Ruzaini bin Ahmad Jani IWK Ms. Sim Lee Gaik IWK

SPAN DW 0101:2011

Mr. Tan Choon Seong IWK Mr. Azrin Zahari IWK Ir. Douglas Wong Kon Chiong ACEM Ir. Norwati Hamdan ACEM Ir. Choo Hock Tin AECCOM Ir. Wong Nam Yun AECCOM

SPAN DW 0101:2011

National Water Services Commission

Ground & 1st. Floor, Prima Avenue 7, Block 3510

Jalan Teknokrat 6, 63000 Cyberjaya, Selangor, Malaysia.

Website : http//www.span.gov.my

STANDARD AND TYPICAL DRAWING

FOR SEWERAGE SYSTEM

Part 1: Sewer and Appurtenances – Gravity Sewer