Swan Environmental Services were commissioned by the client to provide Design and CQA services for the installation of 6 Retro-Drilled Leachate wells at their site. The works comprised: -CQA supervision of the drilling of the Retro-drilled leachate wells using a rotary barrel auger to the depths specified in the CQA Plan and Engineering Specification -CQA supervision of incremental drilling when approaching landfill cell base levels to prevent compromising the underlying lining system -Depth measurement of borehole to ensure compliance with the CQA Plan and Engineering Specification -CQA supervision of the installation of 244mm steel pipework, gravel pack and bentonite seals at each drilling location
Swan provided a full time CQA Engineer to oversee all aspects of the works, under the guidance of a visiting project manager, and act as a contact between Client, Contractors and the Environment Agency.
Swan reviewed all aspects of the works during the production of a CQA Validation Report including all drawings to ensure that the works complied with the CQA Plan and Engineering
specification. The CQA Validation Report was submitted to the Environment Agency for approval of the works conducted.