Please use this identifier to cite or link to this item: http://saruna.mnu.edu.mv/jspui/handle/123456789/4995
Title: Environmental impact assessment for the proposed water supply system in Thimarafushi, Thaa Atoll, Maldives
Authors: Development Collaborative Partnership
Keywords: Water production supply system
Reverse Osmosis plant
Legislative and regulatory considerations
Existing marine environment
Existing terrestrial environment
Existing socio-economic environment
Environmental impacts
Mitigation measures
Environmental monitoring
Environmental impact assessments
Issue Date: Nov-2016
Citation: Development Collaborative Partnership. (2016). Environmental impact assessment for the proposed water supply system in Thimarafushi, Thaa Atoll, Maldives. Male': Maldives
Abstract: This Environmental Impact Assessment (EIA) report is prepared in accordance with the Environmental Impact Assessment Regulation 2012 to assess the impacts of proposed development of water supply system at Th. Thimarafushi. This project is proposed by Ministry of Environment and Energy and the impact assessment was carried out by consultants from DCP Pvt. Ltd., lead by lead consultant Amir Musthafa. The construction stage of the project will be undertaken by Puritas Pvt. Ltd. This impact assessment will identify and determine the significance of potential impact of each major component of the proposed project. Any activity that has a significant impact will be justified and alternatives will be proposed in terms of location and design to mitigate any adverse impact. The project proposes a water supply system based on desalination and rainwater harvesting. Feed water will be obtained from boreholes drilled over 30m deep. Brine will be discharge in front of the plant facility, 100m away from the beach line. Rainwater will be used to support the RO plant system. The main justification for the project is due to the decrease in quality of the groundwater in the island, as is the case in most islands in the Maldives and therefore to provide continuous supply of freshwater to the public. The integrated water supply system is not designed to cater for the airport facility. The total water production capacity at the facility will be 120 m3/day. The water supply system is designed to cater for 35 years. Thimarafushi is an island that has undergone significant development in recent history. There has been a major reclamation project as well as airport development. The proposed project will not need to have any significant vegetation removed as there are no such vegetation at the site. Considering the marine environment, there are no significant live corals that could be impacted along the proposed brine discharge location. The proposed site is far away from population center, and therefore will not have any significant impact on the residential environment. During the stakeholder consultations, all the major stakeholders were quite positive on the project. Their main need was for the project to commence soon. There were other minor concerns that could be attended easily during the implementation of the project. EPA did not that designing the project in such a way that it caters for the airport facility would make the project more feasible and ensure the facility is maintained at a higher level. Regarding impacts, moderate impacts are expected at the commencement of the project during mobilization and use of heavy machinery and setting up site for the proposed project. Due to the absence of notable environmental features at the site, the construction stage will not have a significant negative impact. However, waste management will be an issue as is always the case. Impacts of note include noise pollution, loss of visual amenity, potential damage to existing cables, health and safety issues, groundwater degradation, marine water quality degradation, impact on marine life, etc. However, most of these impacts were regarded as minor. Major impacts include those due to accidents, for which the probability of occurrence is less. Mitigation measures were proposed for all impacts. Mitigation measures included following proper safety procedures at site including wearing proper safety clothing, informing the council and community of the project details beforehand, getting information of existing cables from service providers, proper storage of waste and hazardous chemicals, ensuring the quality of water treatment. It is also proposed to place the discharge pipe with ballast blocks to prevent movement of the pipeline during heavy wave activity. Considering the impacts from the project, it appears that the project would not lead to any long term detrimental impact. On the other hand, the project has several positive impacts to the community including improving the health and lifestyle of the public, improving industries such as tourism and agriculture, thereby facilitating economic growth. Alternatives for the project including the no project option were also considered. However, it was recommended the project proceeds as proposed based on the feasibility of implementation and the small change to environmental impact that the alternatives will bring. A monitoring plan has been formulated and will be used to assess the impacts of the proposed system. It is planned that ground water, seawater, and product water will be tested regularly at predefined locations. Findings from the monitoring program will be used to re-evaluate the mitigation measures to reduce any significant negative impact on the environment. The overall environmental impacts of the project have been assessed using peer reviewed methodology and the results indicated that the proposed project has net positive impact. Given that the project has major socio-economic benefits, minor environmental impacts in addition to improving the health and wellbeing of the community; it is recommended to allow the project to proceed as proposed.
URI: http://saruna.mnu.edu.mv/jspui/handle/123456789/4995
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Environment A


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EIA for the Proposed Water Supply System in Th. Thimarafushi - Final Draft.pdf12.88 MBAdobe PDFView/Open


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