Application of RIAM for evaluation of potential environmental impacts for shore-zone development

The papers depict application of Rapid Impact Assessment Matrix (RIAM), in evaluating the impacts of construction of new marina and enhance the beaching area. In order to have an integrated approach for the impact assessment, the methodology of RIAM was used. RIAM is ideally suited to all EIA where a multi-disciplinary team approach is used, as it allows for data from different sectors to be analyzed against common impacts criteria within a common matrix, thus providing a rapid and clear assessment of the major impacts. The key problems that may cause significant impacts are the indirect and cumulative impacts as well as impact interactions from different sources. The outcome of RIAM process for the project showed the potential to resort in impact/effect, both negative and positive in the environment. The study shows, impact is in the form of direct, indirect, cumulative and interaction impacts (i.e. network assessment). The main outcomes of RIAM showed - the key concerns regarding the impacts from the marine construction activities were related to presence of contamination in the sediment strata, creation of sediment plume, coastal landscape shoreline change (permanent), and water quality change. Some indirect impacts (both biological and physical) could occur due to the increase in TSS. Results of the study indicated that no sensitive ecological ecosystem can be found in the nearby areas. It is evaluated during operation, minimum negative impact can be expected because of proper mitigation and control measures (as proposed); and emergency response plan. Some positive impacts are expected to increase due to developments such as recreation, sea transportation, trade and mobility.