Potential solutions include creating a demarcated building site and dedicated routes for materials, equipment and people. As far as possible the walking routes for operators and engineers must be kept separate. The work area can be cordoned off and provided with positive or negative pressure, depending on the pressure in the adjacent production locations. Because of the layout and volumes of the production areas. This may, however, have a significant impact on the investments required and the lead time of a project.
To exercise control, it is possible to create an inspection regime with regular sampling at critical locations whereby the contamination risk is deemed to be highest. In the case of a project, this makes it very important to start by conducting a baseline measurement in order to keep past nonconformities outside the scope of the project. If nonconformities are observed, a plan to manage them will have to be drawn up and the necessary measures taken. Early identification will limit the impact on the project and on regular production as far as possible.
This article shows that carrying out a project in a Brownfield hygienic environment is not merely a question of having a good engineering design. A solid plan for performing the work will reduce the risks of contamination during work performance and will increase the likelihood of accomplishing the desired project result.