Vereniging voor Explosieven Opsporing
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The process is divided into two primary phases in the WSCS-OCE, namely:
The aim of the preliminary investigation is to assess whether there are indications that CE is present within the investigation area and, if so, to define the suspect area.
If there is a reasonable suspicion during planned (building) works that CE will be encountered in the bottom of surface waters or ground a Preliminary Investigation must be conducted prior to works commencing. The client is responsible for this (construction process provisions in the Working Conditions Decree, HSE in the preparatory phase). For further background information please see our Position paper on compulsory certification and sub-areas WSCS-OCE.
The SZW Inspectorate (Ministry of Social Affairs and Employment Inspectorate) actively monitors this and takes enforcement action if necessary. In paragraph 9.4 of its Civil and Hydraulic Engineering Sector Report 2014 the Inspectorate states the following with regard to this:
The specific requirements are described in paragraph 6.5 of the WSCS-OCE. The preliminary investigation is broken down into the following main elements:
The WSCS-OCE describes the (minimum) sources that must be consulted during the preliminary investigation and the way in which the assessment of the source materials has to be undertaken. This describes the ‘minimum investigation effort' for the preliminary investigation.
In addition, specific requirements are set for the output of the preliminary investigation; a report and a CE likelihood map.
Paragraph 6.5 and Annex 3 of the WSCS-OCE also contain specific provisions about the way in which the suspect area has to be defined.
With regard to the former BRL-OCE guidelines the requirements set for the preliminary investigation in 2012 have changed substantially. Click here for further information about the reasons for this and the most important changes.