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GSHP Systems – Trenching, Backfilling, and Compaction

GSHP Systems – Trenching, Backfilling, and Compaction

Badge awarded to

Ryan Bliss


Issued on 05 May 2026 by

CSA Group | Groupe CSA

CSA Group | Groupe CSA

The trenching, backfilling, and compacting processes are critical components in the installation of ground heat exchangers (GHX). Recent updates to CSA/ANSI/IGSHPA C448 Series:25 emphasize the importance of proper pipe spacing and trench safety to help ensure the integrity and performance of the system and increased safety for those on site. By adhering to these guidelines, professionals can help enhance the reliability and safety of their installations, contributing to the sustainability of buried GHX, an important component of many GSHP systems. Knowing how to properly execute trenching, backfilling, placement of locator devices, and compaction can help prevent costly mistakes, promote compliance with safety standards and regulatory bodies.

Issuer

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CSA Group | Groupe CSA

training@csagroup.org

CSA Group is a global organization dedicated to safety, social good and sustainability. We are a leader in North American Standards and in Testing, Inspection and Certification around the world.

Our mandate is to hold the future to a higher standard.

Le Groupe CSA est un organisme mondial voué à la sécurité, au bien commun et à la durabilité. C’est un leader en élaboration de normes et en essais, inspections et certification dans le monde entier dont le Canada, les États-Unis, l’Europe et l’Asie. Son mandat consiste à viser un avenir encore plus responsable.

Criteria

Type of recognition

Learning Achievement

Learning objectives

  • Reference and apply the guidance of CSA/ANSI/IGSHPA C448 Series related to trenching, backfilling, and compaction to each installation.
  • Describe safety issues related to trenching.
  • Locate and comply with local requirements for relevant health and safety authorities and regulatory bodies relative to trenching.
  • Explain the importance of contacting locating services before digging.
  • Select and install pipe location tapes, wires, or devices as required by the ground heat exchanger design.
  • Explain the importance of as-built drawings, and what should be provided to the building owner.

Learning content

  • Pre-construction and planning
  • Safety and site management
  • Excavation and construction

Assessment

This is a completion-based credential with a summative assessment of learning.

Estimated learning effort

1 hour

Alignments

20010 – Engineering managers

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Engineering managers plan, organize, direct, control and evaluate the activities of an engineering department, service or firm. They are employed by a wide range of private sector and government establishments and by consulting engineering and scientific research companies.

21201 – Landscape architects

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Landscape architects conceptualize, design, plan and manage the construction of natural, cultural and built landscape development for commercial projects, office complexes, parks, golf courses and residential development. They are employed by government environmental and development agencies, landscape consulting firms and by architectural and engineering firms, or they are self-employed.

21300 – Civil engineers

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Civil engineers plan, design, develop and manage projects for the construction or repair of buildings, earth structures, powerhouses, roads, airports, railways, rapid transit facilities, bridges, tunnels, canals, dams, ports and coastal installations and systems related to highway and transportation services, water distribution and sanitation. They may also specialize in foundation analysis, building and structural inspection, surveying, geomatics and municipal planning. They are employed by engineering consulting companies, in all levels of government, by construction firms and in many other industries, or they may be self-employed.

21301 – Mechanical engineers

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Mechanical engineers research, design and develop machinery and systems for heating, ventilating and air conditioning, power generation, transportation, processing and manufacturing. They also perform duties related to the evaluation, installation, operation and maintenance of mechanical systems. They are employed by consulting firms, by power-generating utilities and in a wide range of manufacturing, processing and transportation industries, or they may be self-employed.

21331 – Geological engineers

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Geological engineers conduct geological and geotechnical studies to assess suitability of locations for civil engineering, mining and oil and gas projects; and plan, design, develop and supervise programs of geological data acquisition and analysis and the preparation of geological engineering reports and recommendations.

22210 – Architectural technologists and technicians

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Architectural technologists and technicians may work independently or provide technical assistance to professional architects and civil design engineers in conducting research, preparing drawings, architectural models, specifications and contracts and in supervising construction projects. They are employed by architectural and construction firms, and governments.

22300 – Civil engineering technologists and technicians

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Civil engineering technologists and technicians provide technical support and services to scientists, engineers and other professionals, or may work independently in fields such as structural engineering, municipal engineering, construction design and supervision, highways and transportation engineering, water resources engineering, geotechnical engineering and environmental protection. They are employed by consulting engineering and construction companies, public works, transportation and other government departments and in many other industries.

22301 – Mechanical engineering technologists and technicians

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Mechanical engineering technologists and technicians provide technical support and services or may work independently in mechanical engineering fields such as the design, development, maintenance and testing of machines, components, tools, heating and ventilating systems, geothermal power plants, power generation and power conversion plants, manufacturing plants and equipment. They are employed by consulting engineering, manufacturing and processing companies, institutions and government departments.