Sewer Mapping
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What is Sewer Mapping and what it includes
Kiwa T2 provides comprehensive sewer mapping services for underground wastewater and stormwater infrastructure. Our investigations can include sewer mains and service laterals. Supported by internal Kiwa T2 methodologies that integrate CCTV inspection, sewer lateral tracing, survey, and GIS or CAD sewer alignments and service connections can be incorporated into engineering drawings, GIS databases, and utility models.
Projects can range from the verification of a single sewer asset or lateral connection to the development of a complete site-wide sewer inventory. Where additional certainty is required, sewer mapping may be supplemented by hydro excavation, chamber investigations, or advanced survey technologies to collect further information about asset locations and configurations.
Who is it for?
This service by Kiwa T2 is intended for municipalities, engineering consultants, land developers, transportation agencies, institutional property owners, industrial facilities, construction contractors, asset management teams, and infrastructure planners. These organizations typically manage, design, maintain, rehabilitate, or expand underground infrastructure and require reliable information about the location and configuration of existing sewer assets.
Benefits of Sewer Mapping
- Improves understanding of existing underground sewer infrastructure
- Supports informed planning, design, and construction decisions
- Provides accurate sewer asset information for GIS and asset management systems
- Helps identify sewer main and lateral alignments that may not be accurately reflected in existing records
- Reduces uncertainty when working around existing underground infrastructure
- Supports the development of digital utility records and 3D infrastructure models
Why choose Kiwa?
Kiwa T2 combines subsurface utility engineering, condition assessment, and surveying expertise to provide a coordinated approach to sewer infrastructure investigations. Our team utilizes CCTV inspection technology, surveying, GIS integration, locating equipment, and utility investigation techniques to collect and deliver practical, project-ready information.
Steps in the Process
Project Consultation
Review project objectives, available records, and required deliverables.
Data and Records Review
Assess available sewer records, drawings, GIS data, and background information.
Field Investigation
Complete sewer mapping activities using CCTV inspection, locating technologies, survey, and other appropriate investigation methods.
Asset Verification and Data Collection
Identify and document sewer mains, laterals, and associated infrastructure.
Mapping and Model Development
Produce 2D drawings, GIS maps, or 3D models as required.
Final Delivery
Provide completed mapping products and supporting information for planning, design, construction, or asset management use.
Applicable Norms or Regulations
ASCE 38-22
Best practices for GIS and subsurface engineering
Whether you need to verify a single sewer asset, investigate service lateral connections, or develop a complete sewer inventory, Kiwa T2 can tailor a mapping solution to your project requirements. Contact our team to discuss your site, objectives, and deliverable needs.
Cross-bore Prevention and Verification
Protect critical underground infrastructure and reduce HDD-related risk with CCTV-based cross-bore prevention and verification services from Kiwa T2.
Dye Testing
Kiwa T2 provides Dye Testing services to verify sewer connectivity, helping property owners, developers, and engineers identify where private sewer connections discharge into municipal infrastructure.
Inflow and Infiltration Investigations
Identify and confirm the location of groundwater entering sewer systems with inflow and infiltration investigations that support data-driven rehabilitation and asset management decisions.
Urban Geophysics
Identify hidden subsurface features and anomalies with advanced geophysical investigations that help reduce uncertainty, manage risk, and support informed project decisions.
Subsurface Utility Engineering (SUE) Investigations (ASCE 38)
Professional investigation and analysis of above-ground and underground utilities to provide reliable utility information following the ASCE 38 that supports safer, more informed project planning and design.
Maintenance Hole Condition Assessment (MACP)
Gain a clear understanding of the condition of your maintenance holes and chambers with standardized MACP inspections that support asset management, rehabilitation planning, and regulatory compliance.