Maintaining a solid reputation within the energy industry led to CGL being appointed by Electricity Alliance West (EAW) to undertake ground investigation works associated with the refurbishment of the 400kV overhead power line (OHL) running from Cellarhead substation, Staffordshire to Macclesfield Substation and Carrington substation, Greater Manchester. The investigation undertaken by CGL involved 21 combined percussive/rotary boreholes,

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