[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-648122-105":59,"doc-detail-648122-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","code-of-practice-on-sewerage-and-sanitary-works-3rd-edition-mar-2025","Code of Practice on Sewerage and Sanitary Works - 3rd Edition - Mar 2025","","Code of Practice on Sewerage and Sanitary Works (3rd Edition – Mar 2025) sets out guidance for developers, Qualified Persons, and Licensed Plumbers on planning and delivering sewerage and sanitary plumbing provisions. It supports high living standards through Singapore’s sewerage systems and the broader “Water Loop” for water resource reclamation. The guidance incorporates updates to address technical issues, references the Sewerage and Drainage Act and subsidiary legislations, and includes detailed design, technical requirements, annexes, and terminology.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/code-of-practice-on-sewerage-and-sanitary-works-3rd-edition-mar-2025/648122/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/code-of-practice-on-sewerage-and-sanitary-works-3rd-edition-mar-2025/648122.png","ImageObject",300,407,{"name":92,"@type":93},"Guten tag","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-26","2026-10-23",true,{"@type":102,"interactionType":103,"userInteractionCount":14},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Who is the Code of Practice intended to guide?","Question",{"text":112,"@type":113},"It is intended to guide developers, Qualified Persons (QPs) and Licensed Plumbers in planning sewerage and sanitary plumbing provisions.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What legal framework should the Code be read with?",{"text":117,"@type":113},"The Code should be read in conjunction with the Sewerage and Drainage Act (SDA) and its Subsidiary Legislations where compliance is mandated.",{"name":119,"@type":110,"acceptedAnswer":120},"What does the Code cover in its structure?",{"text":121,"@type":113},"It covers planning for development works, sewer protection, sewerage system design, sanitary system design, and requirements for trade effluent discharge into the public sewerage system, with additional annexes and terminology.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},648122,1793008545,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":14,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},687212321768,"https://ap-avatar.wpscdn.com/avatar/a0010bdbe886d2fe77?x-image-process=image/resize,m_fixed,w_180,h_180&k=1789897067658708522","CODE OF PRACTICE  \nON  \nSEWERAGE AND SANITARY WORKS  \n(3rd EDITION – MAR 2025)  \n| 1st Edition\u003Cbr>-Mar 2000 | Addendum No. 1 -Feb 2001 | Addendum No. 2 – Nov 2004 |\n| --- | --- | --- |\n| 2nd Edition\u003Cbr>-Jan 2019 | Addendum No. 1 -Mar 2021 |  |\n| 3rd Edition\u003Cbr>-Mar 2025 |  |  |\n\nCODE OF PRACTICE  \nON  \nSEWERAGE AND SANITARY WORKS  \nPUB would like to thank the following Professional Bodies, Trade Associations and members of the Inter-Agencies Coordinating Committee (IACC) for their constructive feedback and comments on the Code of Practice on Sewerage and Sanitary Works (3rd Edition):  \nAssociation of Consulting Engineers, Singapore (ACES)  \nThe Institution of Engineers, Singapore (IES)  \nSingapore Institute of Architects (SIA)  \nSingapore Plumbing Society (SPS)  \nReal Estate Developers' Association of Singapore (REDAS) The Singapore Contractors Association Ltd (SCAL)  \nThe Singapore Manufacturing Federation (SMF)  \nMembers of IACC:  \nHousing & Development Board (HDB)  \nNational Environment Agency (NEA)  \nNational Parks Board (NParks)  \nBuilding and Construction Authority (BCA)  \nEnergy Market Authority (EMA)  \nJTC Corporation (JTC)  \nLand Transport Authority (LTA) Singapore Civil Defence Force (SCDF) Urban Redevelopment Authority (URA)  \nMinistry of Manpower (MOM)  \nInfocomm Media Development Authority (IMDA)  \nCONTENTS  \n\n| ACKNOWLEDGEMENT | ii |\n| --- | --- |\n| INTRODUCTION | v |\n| TERMINOLOGY | vi |\n| SECTION |  |\n| 1. PLANNING FOR DEVELOPMENT WORKS |  |\n| 1.1 PLANNING CONSIDERATIONS | 1 |\n| 1.2 TECHNICAL CONSIDERATIONS | 1 |\n| 2. SEWER PROTECTION |  |\n| 2.1 SEWER PROTECTION CONSIDERATIONS | 5 |\n| 2.2 TECHNICAL REQUIREMENTS FOR SEWER PROTECTION | 6 |\n| 3. SEWERAGE SYSTEM DESIGN |  |\n| 3.1 DESIGN CONSIDERATIONS | 10 |\n| 3.2 DESIGN AND TECHNICAL REQUIREMENTS FOR SEWERS | 10 |\n| 3.3 TECHNICAL REQUIREMENTS FOR PUMPING INSTALLATIONS | 12 |\n| 3.4 PIPE MATERIAL AND TESTING SPECIFICATION FOR SEWER AND PUMPING MAIN | 14 |\n| 4. SANITARY SYSTEM DESIGN |  |\n| 4.1 DESIGN CONSIDERATIONS | 15 |\n| 4.2 TECHNICAL REQUIREMENTS FOR SANITARY DRAINAGE SYSTEM | 16 |\n| 4.3 TECHNICAL REQUIREMENTS FOR SANITARY PLUMBING SYSTEM | 19 |\n| 4.4 PUMPED SANITARY SYSTEM | 26 |\n| 4.5 SANITARY FACILTIES FOR PREFABRICATED BUILDINGS | 27 |\n| 4.6 SANITARY SYSTEM FOR SPECIAL INSTALLATIONS | 27 |\n| 4.7 TESTING OF SANITARY SYSTEM | 30 |\n| 4.8 MATERIAL AND PRODUCT STANDARD | 30 |\n| 4.9 STANDARD DRAWINGS FOR SANITARY WORKS | 31 |\n| 5. REQUIREMENTS FOR TRADE EFFLUENT DISCHARGE INTO PUBLIC SEWERAGE SYSTEM |  |\n| 5.1 GENERAL REQUIREMENTS | 32 |\n| 5.2 DEVELOPMENT WITH TRADE EFFLUENT DISCHARGE | 32 |\n| 5.3 REQUIREMENTS ON PARTY DISCHARGING TRADE EFFLUENT | 33 |\n\n\n| ANNEXES |  |\n| --- | --- |\n| ANNEX A-REQUIREMENTS FOR CONSTRUCTION OF RC TRENCH | 35 |\n| ANNEX B-LIST OF SEWERAGE STANDARD DRAWINGS | 36 |\n| ANNEX C-TECHNICAL REQUIREMENTS FOR SEWER PIPE | 37 |\n| ANNEX D-WATER TIGHTNESS TESTING | 39 |\n| ANNEX E-EXAMPLE ON SIZING OF GREASE TRAP (EN1825-2) | 41 |\n| ANNEX F-OTHER SEWER PROTECTION REQUIREMENTS | 42 |\n| ANNEX G-GUIDELINES ON AUTOSAMPLER | 47 |\n| ANNEX H-GUIDELINES ON VOC MONITORING SYSTEM | 49 |\n| ANNEX I-REQUIREMENTS FOR TEMPORARY HOLDING TANK | 51 |\n| ANNEX J-PUB’S RECOMMENDED CLEANING PROCEDURES FOR STANDARD CIRCULAR GREASE TRAP | 52 |\n| ANNEX K-PUB’S RECOMMENDED CLEANING PROCEDURES FOR NON-STANDARD GREASE TRAPS AND PORTABLE GREASE INTERCEPTORS COMPLYING WITH BS-EN1825 OR ASME\u003Cbr>A112.14.3 | 53 |\n\nINTRODUCTION  \nSewerage systems are essential to maintain a high standard of living in a city. In Singapore, it is also an important part of the “Water Loop”, the management of which is key to reclamation of our precious water resources. All developments should therefore have sanitary and sewerage facilities to convey sewage to the public sewerage system.  \nThis 2025 edition of the Code of Practice on Sewerage and Sanitary Works (COPSSW) incorporate changes and updates made over the years to address new technical issues faced and feedback from the public and industry. It","cbCaiucfqKEA3Fgt","https://ap.wps.com/l/cbCaiucfqKEA3Fgt","pdf",974599,61,"English","# Acknowledgement\n# Introduction\n# Terminology\n# Section 1. Planning for Development Works\n## Planning Considerations\n## Technical Considerations\n# Section 2. Sewer Protection\n## Sewer Protection Considerations\n## Technical Requirements for Sewer Protection\n# Section 3. Sewerage System Design\n## Design Considerations\n## Design and Technical Requirements for Sewers\n## Technical Requirements for Pumping Installations\n## Pipe Material and Testing Specification for Sewer and Pumping Main\n# Section 4. Sanitary System Design\n## Design Considerations\n## Technical Requirements for Sanitary Drainage System\n## Technical Requirements for Sanitary Plumbing System\n## Pumped Sanitary System\n## Sanitary Facilities for Prefabricated Buildings\n## Sanitary System for Special Installations\n## Testing of Sanitary System\n## Material and Product Standard\n## Standard Drawings for Sanitary Works\n# Section 5. Requirements for Trade Effluent Discharge into Public Sewerage System\n## General Requirements\n## Development with Trade Effluent Discharge\n## Requirements on Party Discharging Trade Effluent\n# Annexes","[{\"question\":\"Who is the Code of Practice intended to guide?\",\"answer\":\"It is intended to guide developers, Qualified Persons (QPs) and Licensed Plumbers in planning sewerage and sanitary plumbing provisions.\"},{\"question\":\"What legal framework should the Code be read with?\",\"answer\":\"The Code should be read in conjunction with the Sewerage and Drainage Act (SDA) and its Subsidiary Legislations where compliance is mandated.\"},{\"question\":\"What does the Code cover in its structure?\",\"answer\":\"It covers planning for development works, sewer protection, sewerage system design, sanitary system design, and requirements for trade effluent discharge into the public sewerage system, with additional annexes and terminology.\"}]","Code of Practice on Sewerage and Sanitary Works - 3rd Edition - Mar 2025 | PDF",1792792389,154]