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In 1972, the London Convention (LC) was adopted to provide protection to the world’s oceans, in particular, from the dumping of waste and other material at sea. It was updated in 1996 by the London Protocol (LP) that came into force in March 2006. In recognising the need for guidance in implementing annex 2 of the LP and to assist national governments with the assessment of wastes or other material that may be considered for dumping, the Contracting Parties developed the Waste Assessment Guidelines (WAG ). To make the WAG more accessible the Contracting Parties further developed a WAG Training Set (WAG TS) which comprised of a set of instruction materials intended for use by national authorities responsible for regulating the ocean dumping of wastes.
In conducting regional workshops a need was identified for a low technology version of the WAG TS to focus on assessing dredging material for those countries where regulations are absent or at an early stage of development and where access to technical equipment and knowledge may be limited.
Therefore, these Guidelines for the application of low cost, low technology techniques for assessing dredged material have been developed. They aim to assist individuals or bodies in reviewing operations, and provide the tools from a simple starting point to incrementally build an assessment, management and permitting system for dredged material to be considered for disposal at sea. Accordingly, the training set provides information on low cost sampling, testing, information gathering and documenting, low cost monitoring and feedback surveys to improve decision making. The Guidelines are based on the WAG TS and the Specific Guidelines for Assessment of Dredged Material. They are presented as a stand-alone document and follow the same format and approach as the WAG TS but are more directing in the sense that low technology approaches are identified and explained to enable the user to make an informed choice. Where it has been determined that there are no low technology alternatives, the WAG text has been amended to make it more accessible for those operating in a low technology environment.
Abbreviations and glossary
Part 1 Introduction
Part 2 London Convention and London Protocol
Part 3 Processes
Step 1 Dredged material characterization
Step 2 Waste prevention audit and management options
Step 3 Action list
Step 4 Selecting a disposal site
Step 5 Impact assessment
Step 6 Permitting system
Step 7 Permit conditions
Step 8 Monitoring
Part 4 Case study
Appendix How to construct and use a turbidity tube