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It defines scope, responsibilities, terminology, charging, and abbreviations, and sets out processes for connection requests, contestability activities, design submissions, and drawing standards. It covers pipe sizing methodology, water main and service pipe construction principles, metering, firefighting water provisions, commissioning tests, and key contacts, with version-controlled appendices and material schedules.",{"@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/design-and-construction-specification-for-united-utilities-version-15-issue-date-041024/650042/",{"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/design-and-construction-specification-for-united-utilities-version-15-issue-date-041024/650042.png","ImageObject",300,407,{"name":92,"@type":93},"GGG","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-25","2026-10-24",true,{"@type":102,"interactionType":103,"userInteractionCount":81},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the purpose of this specification template?","Question",{"text":112,"@type":113},"It assists practitioners with planning, designing, constructing, and commissioning a self-laid main and service pipes to supply domestic and industrial/commercial properties. 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Each water company completes those parts and publishes a company-specific version on its website, which governs requirements in its area.",{"name":119,"@type":110,"acceptedAnswer":120},"Which key technical topics are covered in the document?",{"text":121,"@type":113},"It covers the design process and submission requirements, pipe sizing methodology, water main and service pipe design and installation principles, civil engineering considerations, metering requirements, firefighting water provisions, and commissioning activities such as flushing, sampling, and pressure testing.","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},650042,1792899981,{"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":81,"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},962093532725,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","Design and construction specification for United Utilities  \nVersion: 1.5 Issue Date: 04/10/24  \nDesign and Construction Specification for United Utilities  \n2  \nContents  \nChange log 3  \n1. Scope 4  \n2. Responsibilities 4  \n3. Terminology 4  \n4. Charging 4  \n5. Abbreviations 5  \n6. Nomenclature 5  \n7. Reference Documents 5  \n8. Construction (Design & Management) Regulations 2015 (CDM) 6  \n8.1 General 6  \n8.2 Collaborative Design 6  \n8.3 Non-Contestable Work – Installation of District Meter or Pressure Reduction Equipment 6  \n9. Design Process 7  \n9.1 Minimum Information Required from Developers 7  \n9.2 Point of Connection (PoC) Requests 7  \n9.3 Annual Contestability Summary 7  \n9.4 Activities shaded green in the ACS 9  \n9.5 Activities shaded amber in the ACS 9  \n9.6 Activities shaded red in the ACS 10  \n9.7 Design Submissions to Water Company 10  \n9.8 Design Proposal 10  \n9.9 Drawing Standards 11  \n9.10 Drawing Legend 12  \n9.11 Design & Construction Variations 12  \n10. Pipe Sizing Methodology 12  \n10.1 Permitted Pipe Diameters, Pressure Ratingsand Permissible Materials. 12  \n10.2 Principles of Sizing of Water Mains 12  \n10.3 Indicative Pipe Diameter Selection 13  \n10.4 Domestic Hydraulic Demand Calculations 13  \n10.5 Calculations for Multi-Occupancy Building and Industrial and Commercial Domestic Use 14  \n10.6 Process Water 14  \n10.7 Pressure and Flow 14  \n10.8 Selection of Materials for Contaminated Ground 14  \n11. Water Main Design and Construction Principles 15  \n11.1 Design Accreditation 15  \n11.2 Construction (pre-start) 15  \n11.3 Routing and Positioning Principles 15  \n11.4 Depth of Self-Laid Main 16  \n11.5 Mains Fittings 16  \n11.6 Controlling Valves and Valve Operation 17  \n11.7 Washout and Fire Hydrants 17  \n11.8 Air Valves 17  \n11.9 District Metered Areas and Boundary Valves 17  \n11.10 Sustainable Drainage Systems (SuDS) Considerations 18  \n11.11 Double Spade Valves 18  \n11.12 Rights of Access 18  \n12. Service Pipe Design and Installation 18  \n12.1 Routing, Positioning and Location 19  \n12.2 Depth of Services 19  \n12.3 Sizing of Services 19  \n12.4 Location of Boundary Boxes 20  \n12.5 Supplies to Multi Occupancy Buildings 20  \n12.6 Services to Multi Storey Buildings 20  \n12.7 Additional Requirements for Supplies to Buildings Other Than Domestic Dwellings 21  \n13. Civil Engineering Considerations 21  \n13.1 General 21  \n13.2 Marker Tape and Tracer Tape 21  \n13.3 Indicator Posts and Marker Plates 21  \n13.4 Chambers and Covers 21  \n13.5 Bedding and Backfill 21  \n13.6 Reinstatement of Highway 21  \n13.7 Ducts 22  \n14. Metering Requirements 22  \n14.1 Standard Domestic Metering for Individual Dwellings and Multi Occupancy buildings 22  \n15. Water for Firefighting 22  \n15.1 Fire and Rescue Service (FRS) Consultation 22  \n15.2 Location and Flow from Hydrants 22  \n15.3 Dedicated Fire Mains 23  \n15.4 Fire Sprinkler Systems 23  \n16. As Laid (As Constructed) Drawings 23  \n17. Self-Laid Main and  \nServices Commissioning 24  \n17.1 Mains Flushing 24  \n17.2 Not used 25  \n17.3 Mains Bacteriological Sampling 25  \n17.4 Pressure testing of Self-Laid Main 25  \n18. Water Company Key Contacts 26  \n19. Local Practices 26  \n19.1 Meter Pairing and Commissioning 26  \n19.2 Timing of the Generation of Plot Reference Numbers 27  \n19.3 Water Company Design Service Offerings 27  \n19.4 Design Self-Certification Scheme 27  \n20. Design and Construction Specification Appendices 27  \n21. Schedule of Permissible Materials and Construction 27  \n21.1 Permissible Materials 27  \n21.2 Service Connection Arrangements 28  \n22. Meter and Service Pipe Policy and Installation 29  \n22.1 Routing, Positioning and Installation (Mains) 29 22.2 Routing, Positioning and Installation (Services) 32  \n22.3 Meter Arrangements for Multi Occupancy Buildings 32  \n23. Standard Arrangement Drawings 33  \n24. Construction Pre-Start Meeting Agenda 33  \nVersion: 1.5 Issue Date: 04/10/24 ©United Utilities Water Limited 2024  \nDesign and Construction Specification for United Utilities  \n3","cbCaikcrU25keFgu","https://ap.wps.com/l/cbCaikcrU25keFgu","pdf",1393222,37,"English","# Contents\n## Change log\n## 1. Scope\n## 2. Responsibilities\n## 3. Terminology\n## 4. Charging\n## 5. Abbreviations\n## 6. Nomenclature\n## 7. Reference Documents\n## 8. Construction (Design & Management) Regulations 2015 (CDM)\n## 9. Design Process\n## 10. Pipe Sizing Methodology\n## 11. Water Main Design and Construction Principles\n## 12. Service Pipe Design and Installation\n## 13. Civil Engineering Considerations\n## 14. Metering Requirements\n## 15. Water for Firefighting\n## 16. As Laid (As Constructed) Drawings\n## 17. Self-Laid Main and Services Commissioning\n## 18. Water Company Key Contacts\n## 19. Local Practices\n## 20. Design and Construction Specification Appendices\n## 21. Schedule of Permissible Materials and Construction\n## 22. Meter and Service Pipe Policy and Installation\n## 23. Standard Arrangement Drawings\n## 24. Construction Pre-Start Meeting Agenda","[{\"question\":\"What is the purpose of this specification template?\",\"answer\":\"It assists practitioners with planning, designing, constructing, and commissioning a self-laid main and service pipes to supply domestic and industrial/commercial properties. It is mandatory in its template contents, with controlled variation between water companies.\"},{\"question\":\"How do water companies handle variations from the template?\",\"answer\":\"The template indicates where there is scope for variation. Each water company completes those parts and publishes a company-specific version on its website, which governs requirements in its area.\"},{\"question\":\"Which key technical topics are covered in the document?\",\"answer\":\"It covers the design process and submission requirements, pipe sizing methodology, water main and service pipe design and installation principles, civil engineering considerations, metering requirements, firefighting water provisions, and commissioning activities such as flushing, sampling, and pressure testing.\"}]","Design and Construction Specification for United Utilities - Version 1.5 - Issue Date 04/10/24 | PDF",1792815437,93]