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CQA is essential for ensuring the proper construction of GCCS and meeting the intent of the design, and can help prevent safety mishaps. Even highly experienced design-build teams invest in expert CQA professionals to protect their capital investment, maintain maximum LFG capture through constructed GCCS, and keep operating and maintenance costs in line. It is critical for CQA person-nel to understand the overall intent of the design drawings, current field conditions, long-term conditions, and strict safety protocols. They must also have the expertise to respond to the questions contractors have during construction, especially regarding modifications to the design which will positively impact safety, long-term performance, and maintenance.
Part 1 of the 3-part article series in MSW Magazine discussed essential elements of the piping system in a landfill gas collection and control system (GCCS). The authors examine landfill GCCS design perspective and the benefits of designing landfill gas (LFG) headers outside of the waste boundary. In Part 2, we focus on construction quality assurance (CQA) services and outline the process of taking the design drawings through completion of the CQA report.
Read Part 2 here. Contains link to Part 1.