Academic Articles -- ޢިލްމީ ލިޔުންތަކުގެ ޖަމާ

Browse

Search Results

Now showing 1 - 10 of 36
  • Thumbnail Image
    Item
    Technical Report
    First addendum to the environmental impact assessment for the proposed harbour project in Nilandhoo, Faafu Atoll, Maldives
    (2016-07) Sandcays
    This is the first Addendum to the EIA for the harbour project being undertaken in Nilandhoo, Faafu Atoll. The project is proposed by Ministry of Housing and Infrastructure. The project constitutes dredging of a large harbour for the people of Nilandhoo while at the same time creating land using dredged sand including additional dredging for proposed reclamation of 10hectares of land for housing and infrastructure development including semiindustrial activities. An environmental assessment was undertaken for this project in Nov 2015, which has been subsequently approved. According to the EIA report, the objective of the harbour project is to provide a sizeable harbour to accommodate the increasing number of vessels in the island and to restore the usability of the harbour that has been filled over time with the breakwater being damaged, especially following the tsunami of 2004. The harbour on the northeast side is too small given that Nilandhoo has a lot of large fishing vessels and has been serving as the regional hub with fuelling services established on the old (tsunamidamaged) harbour on the northwest. This addendum addresses the modification to the location of the borrow area. One of the main concerns is that the performance of the dredger is affected due to having to pump up to 1km from the borrow to the fill area. Therefore, it has been considered important to move the dredge (borrow) area closer to the fill area in order to enhance dredging performance and achieve cost-effectiveness. During the first Scoping Meeting, which was cancelled by EPA stating that the project justifications were not clear, EPA identified that the borrow area needs to be moved as far as possible from the proposed quaywall as there may be stability issues. Taking this concern into consideration, further alternatives to the borrow area were also considered by the Proponent in consultation with the Contractor and the representatives of Nilandhoo people. During discussions with the Council and people of Nilandhoo, they have raised concern regarding the need to protect the proposed harbour, which would involve huge costs if the proposed option were adopted although it had been mentioned in the original EIA that harbour protection will be considered in the future. Therefore, in order to reduce the overall cost of the proposed project and to increase the usability of the proposed harbour even during rough southwest monsoon, appropriate alternatives were considered to the harbour design as well although it is beyond the scope of this EIA. A number of alternatives to the proposed harbour design was considered in the original EIA report. Of these, the option of upgrading the existing harbour on the northwest has been given due consideration in the light of improving on social concerns related to limitations in land reclamation. An alternative analysis that have been done in the original EIA and during the current Addendum indicated that the preferred alternative to redesign the existing harbour would have several advantages over the proposed especially the ease of use during rough southwest monsoon while leaving the possibility of an external quaywall if it becomes necessary at a later stage. However, some stakeholders believe that the proposed option has advantages over the preferred alternative as it has better opportunities for future expansion and growth of the economic potential of the island. Some of the other alternatives considered in the original EIA report including the expansion of existing harbour on the northeast to the northwest has cost advantages while it has restrictions over future expansion that the recommended alternative in this Addendum provides. Environmental impacts were assessed for both the construction and operational phases of the project. Most of the direct, negative environmental impacts identified for the construction phase of the project were minor negative; the main impact being the impact on sedimentation from the proposed borrow area to the coral colonies in the vicinity and more importantly sedimentation during the filling of the proposed fill areas, which have already been covered in the original EIA report. Therefore, the impact of dredging has been considered in this Addendum. The main impact arising from the proposed new dredge area is the damage to the inner reef as a result of the dredging. There was a concern relating to the closeness of the dredge area to the proposed quaywall and the potential failure of the structure due to a collapse of the sides of the dredged basin. However, since the dredged basin would need to be dredged to less than 4m from the existing seabed, which is less than 6m in depth at present, there should not be such a problem. Only a few berths or quaywalls just adjacent to the reef edge dropping to 30m suddenly have failed whereas the proposed structure is over 110m from the dredge area, which will be dredged to only about 10m and not more than 13m under the current proposal. Furthermore, most of the naturally deep lagoon areas in similar islands would be about 10m in the middle areas with some areas having 15m depths. Therefore, the direct removal of some of the corals due to proposed option can be avoided by not dredging from the inner reef flat areas but the deep lagoon only, as in the proposed alternative. Reclamation of land considering current and future potential use is a favoured development activity in many islands today. However, based on the experience of most of the land reclaimed in many islands, the cost recovery of the project is low and taxpayers have reason to question the outcome of the project. Yet, if the project objectives were achieved by renting the reclaimed land for semi-industrial activities and housing developments, it may be a justifiable cost. It is sad to note that the proposed reclaimed land has yet to find itself a landuse plan and development scenario after several months of EIA approval that had passed by. This is a cause for concern in terms of the afore-mentioned socio-economic impact of the project, although it is beyond the scope of the EIA. If the land is appropriately managed, the project is considered to have several socio-economic benefits that will certainly outweigh the negative environmental impacts, which are of low significance. Although the impacts are not significant due to the absence of sensitive ecological elements that would be directly impacted, some project-specific mitigation measures have been discussed. These include consideration of the preferred alternative (which is also the or one of the alternatives discussed in the original EIA report) to mitigate the impacts of wave activity at the proposed quaywall, to consider shore protection as the reclamation progresses to minimize erosion and to move any live corals that may be directly affected into safer locations. General mitigation measures, involving appropriate construction management such as working during low-tide as much as possible and rigorous supervision during project implementation are also recommended. It is recommended to carry out regular monitoring as proposed in this Addendum, which replaces the monitoring programme given and approved in the original EIA report. It would be important to assess the movement of the sediment plume regularly and to ensure that sediment plume does not severely affect the reef areas. Turbidity levels are expected to be measured within the sedimentation zone on a regular basis up to 6 months after the project. In conclusion, it appears justified, from a technical and environmental point of view, to carry out the proposed project. Since alternatives have not been considered or discussed with the relevant stakeholders including the Council, it is recommended to consider all potential alternatives, including those identified by the EIA Consultants, before proceeding with the project. The preferred alternative borrow areas including the existing harbour on the northwest is recommended.
  • Thumbnail Image
    Item
    Technical Report
    Environmental impact assessment for the proposed water supply system in Thimarafushi, Thaa Atoll, Maldives
    (2016-11) Development Collaborative Partnership
    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.
  • Thumbnail Image
    Item
    Technical Report
    Environmental impact assessment for the development of tuna purchasing and storage facility, GA. Raaverrehaa, North Huvadhu Atoll
    (2016-01) Riyaz, Mahmood; Adam, M. Shiham
    1- This is the Environmental Impact Assessment (EIA) report carried out for proponent ̶ Ensis Fisheries Pvt. Ltd. ̶ to develop and operate fish purchase and storage facility in Raaverrehaa North Huvadhu Atoll. The EIA was prepared as partial fulfilment of the requirement by the Ministry Fisheries and Agriculture (MoFA) for acquiring permission for the Project. Environmental Impact Assessment (EIA) of development projects is a requirement by the Environmental Protection and Preservation Act (EPPA) (law 4/93) of the Government of the Republic of Maldives. 2- This report has been prepared in accordance with the Environmental Impact Assessment Regulations published by the Ministry of Environment and Energy in 2012 and covers both negative and positive environmental and socio-economic impact arising from the proposed project. Major findings of this report are based on information gathered during the field inspection of both the existing environment and possible effects of the project activities, and ongoing similar projects elsewhere in the Maldives and through extensive literature review and experiences gained from similar projects elsewhere. 3- Initially the proposed development was planned in Ga. Kedheraa Island and environmental Decision Statement was obtained to go ahead with the project. Shifting the planned development to Raaverrehaa was decided based on strategic analysis of the development, which found potential operational disadvantages that may impede smooth operation of the facility. Most importantly lack of shallow reef space to develop a harbour, which is an important infrastructure for the facility, remoteness of the island and being far from the airport and major fishing islands are also some of the shortcomings of Kedheraa. 4- The proposed activity will take place on Raaverrehaa Island and surrounding Falhu. Ga. Raaverrehaa Island is an uninhabited found on the North Eastern side of Huvadhu Atoll located at the periphery in an elongated, N-S oriented reef platform measuring a length of 20 km is shared by multiple islands. The reef is shared by three more islands including Villingili Island. The eastern part of the reef extends in the form shallow lagoon into eastern rim of the Atoll. The elongated-oval-shaped island of Raaverrehaa is lying in the western half of the reef. The coral reef system of Raaverrehaa is 20km long and the width is 0.8-1.8km. Reef perimeter is 43km and the area is approximately 25sqkm. The distance from the edge of the beach to the reef edge in both eastern and western sides is fairly consistent measured approximately 1km on the east and 400m on the western side. Raaverrehaa is an elongated-oval shape, N-S oriented island, with a length of 415m and width 100-119m and has an area of 4.7 ha. Average depth of the reef flat is less than -1 to -0.5m m from MSL. 5- Major operation that will be undertaken in Raaverrehaa Island will be loading/unloading storage and transportation of fish to Ensis processing facilities located in Hulhumalé Island. The facility will have 500 tonnes cold storage capacity and will produce ice needed for the fishermen to keep the fish fresh until they reach the storage facility from the fishing grounds. Necessary infrastructure needed to operate the facility will be developed on the island including the accommodation facilities for the staff working on the island. Electricity and water required for operations will be produced in the island. 100x3 KvA generator sets will be will be installed at the powerhouse to provide the electricity needed for the island. Reverse Osmosis (RO) desalination plants with total production capacity of 40MT per day will be installed to provide necessary water requirement for the operations. The proponent will ensure that the powerhouse and desalination plant implies with the relevant regulations. The exhaust chimneys, lightening conductors, sound attenuators, and CO2-based fire fighting equipment will be installed. Ear mufflers will be provided for staff working at louder areas of the facility. EIA Ensis Fisheries – Raaverrehaa Shore-based Facility – M. Riyaz & M.S Adam 15 | 90 6- The raw material, mainly skipjack and yellowfin tuna caught by pole-and-line and handline by Maldivian on local fishing vessels will be purchased entirely from the Maldivian fishermen. With Ensis’s long reputation in the country, it is expected that a large number of vessel will sell fish to the Ensis Fisheries Pvt Ltd. Ice will be provided free of charge from all the Ensis facilities as incentive for fishing and to encourage loyalty to the company. In addition the proponent will provide iceboxes for fishing operation startups in the area. 7- During the preparation of the EIA report an impact matrix, which is a standard tool for identifying the possible impacts of project activities, has been created for proposed development project Raaverrehaa Island. The activities carried out during the construction and operational phases are arrayed against a selection of environmental factors that may be affected directly or indirectly as a result of project activities. The impact outcomes from this analysis are considered and appropriate mitigation measures both in the development and operational phased has been provided. 8- The report has identified the main environmental impacts associated with the proposed activities and found that high water and energy consumption and the discharge of effluent with a high organic content are the major issues. Vegetation clearance and construction waste during the construction phase and noise, odor, solid wastes occupational health and safety issues may also be concerns of the operational phase. The study has found that most significant negative environmental impact identified during the operational phase of this project is release of untreated effluent into the sea. Liquid, solid and other forms of wastes and particularly hazardous waste generated during the operational phase has also been identified as significant impact associated with the project and appropriate mitigation measures are suggested for each and every impact identified in relation to the project. 9- The study has evaluated alternative options for the project and found that the proposed development is the right development for the right place. To enhance the water circulation in the reef and to limit the access to Raaverrehaa it is recommended to cut a channel through the walkway or remove it as an alternative for keeping the solid walkway which blocks cross reef water motion, increase nutrient enrichment and subsequent growth of seagrass on the eastern side of the reef and provides unlimited land access to the island. It is suggested to under-take post-development extensive monitoring programme that will keep on monitoring the environmental changes associated with the development and its operation and make necessary adjustment to the activities and its operation of the project based on the findings of various measured environmental parameters suggested in the monitoring plan. 10- The overall positive environmental impact from the development project is to integrate the existing product lines and the value-addition of fishery products rather than exporting the whole fish for processing. Job creation and stimulation of local economy, and exports is the most significant positive environmental impact of this activity. The long-term sustainability of the activity however, will depend on the sustainability of the fish stock. Skipjack and yellowfin tuna are highly migratory and their stocks straddle across the countries’ exclusive economic zones into the high seas spreading out into the entire Indian Ocean. The stocks are being managed by the Indian Ocean Tuna Commission which among its 32 coastal and distant water fishing nations. Maldives is a full member and now heavily engaged, partly due to its existing Marine Stewardship Council (MSC) Certification of its pole and line skipjack and yellowfin tuna fishery. The current assessed status of the skipjack and yellowfin tuna stock is considered ‘not overfishing’. The total average Indian Ocean catches are below the assessed maximum sustainable levels and the spawning biomass is healthy well above the point of recruitment impairment. The Maldives fishery component takes 17% of Indian Ocean skipjack and some 15% of the yellowfin. The most recent MSY is around at 680,000 Mt per year for skipjack and 350,000 Mt for yellowfin tuna. 11- Raaverrehaa is occasionally used for local picnic and it is the only remaining island for picnickers in the vicinity Villingili. Proposed fish purchase and storage facility development in Raaverehaa will limit the public accessibility for local picnickers. To overcome potential social problems that may rise in association with this development, the proponent has proposed to develop a picnic facility in any location identified by the public and Villingili Council. At present council is consulting with the people to identify the most suitable area to develop for local picnickers. 12- On the basis of the findings of this environmental impact assessment study and the impact mitigation measures proposed in the report will be duly implemented and recommendations are given due consideration, it is concluded that the benefits of the planned Ensis fish purchasing and storage facility development in Raaverrehaa Island will substantially outweigh an unwelcomed demand of burden on the environment.
  • Thumbnail Image
    Item
    Technical Report
    Environmental impact assessment for the proposed six storey building with a basement, land lot A-10079 Hulhumalè, Maldives
    (2016-10) Riyaz, Mahmood
    1. The report has been prepared for Ms. Maanaa Raafiu M. Kuredhige to fulfill the legal requirement of EIA regulation 2012 Schedule D which requires obtaining environmental clearance from The Environmental Protection Agency prior to construction of a building with a basement or buildings that have a foundation deeper than 5feet from the ground level. The proposed project involves development of a six storey building with a basement in Hulhumalè Lot 10079 (A-133) located on the north eastern side Dhiggaa Magu in Neighbourhood 1 (N1). 2. The total area of the lot is 152.8m2 and the building footprint is on 137.5m2. The proposed 6- Storey private residential building will have apartments in mezzanine, first, second, third and fourth floors. The terrace will have a 12.5m2 swimming pool and a raised deck. The basement will have provision for accommodation on one half and other half for vehicle parking. 3. The inclusion of a basement floor in the building requires the foundation to be laid at a deeper depth than the foundation of a typical building without a basement and so it is proposed to be at 2.11m below ground level. The biggest concern in excavating for this depth is the protection of foundation s of the adjacent buildings. Since the foundation depth of the proposed building will be deeper than the foundation depth of adjacent buildings. Detailed procedure to be used to construct the foundation of the building is described in the report. 4. Ambient noise levels, road traffic condition, groundwater, soil, vegetation, and a exterior visual survey of the surrounding buildings and roads have been undertaken to assess the environmental condition of the area. 5. The study showed that the road traffic is extremely low approximately one vehicle in every 1- 2 minutes. Exterior visual survey of the surrounding buildings show no significant structural defects apart from the minor surface cracking. Road condition of Dhigaa magu Nirolhumagu 06 Goalhi and Nirolhumagu 09 Goalhi are in good condition. It is unlikely the existing road structures will be affected from the proposed development. The land plot is covered with various types’ of plants (shrubs and creepers) due to human intervention. The dominating low level bush contains a large number of Ipili pili (Leucaena leucocephala) and a medium sized Casuarina plant was found inside the land plot. The removal bushes, creeper and the Casuarina plant from the project area will be insignificant in terms of environmental impacts. 6. The environmental impact assessment study for construction of six-storey building with a basement in Hulhumalè Lot A10079 found that foundation excavation and dewatering and waste are two main activities that would cause significant negative environmental impacts. 7. Of these a long term impact would be from constructional waste. The waste material generated during construction phase needs to be appropriately disposed if not aesthetic conditions of the surrounding environment will be degraded in addition to health risks, dust odour and smell nuisance to nearby residents is anticipated. Hazardous waste such as waste oil and lubricants if not disposed properly it will contaminate and pollute the groundwater. These impacts would be cumulative and can be managed through proper monitoring and addressing them in a timely manner. Based on the scale of the construction projects that is taking place in Maldives at the time of this writing, impacts associated with this project activity is insignificant. 8. Impact of dewatering on groundwater table will be short-term in nature, including loss of groundwater from the project boundary and vicinity. Major impact of dewatering would be increased salinity of ground water within the vicinity areas for s short period of time. Considering the fact that most of the households nowadays are using piped water for daily house hold uses, there will be no direct impact to the households from increased salinity but the impact would be felt for the trees nearby the site. 9. The study has evaluated alternative options for the project activities and evaluated potential option for power generation and alternative foundation options. Even though there is no very significant impact from this project after the report has come-up with an extensive monitoring programme that will keep on monitoring environmental changes associated with the project and make necessary adjustment based on the findings of various measured environmental parameters suggested in the monitoring plan. 10. The study found that the proposed project is in line with key legal and policies maintained by the Ministry of Housing and Infrastructure and EPA including Environmental Protection and Preservation Act, EIA Regulations, Hulhumalè Planning Guidelines and Maldives National Building Code. 11. Therefore on the basis of this environmental impact assessment study and the impact mitigation measures proposed in the report will be duly implemented and recommendations are given due consideration, it is concluded that the benefits of the proposed construction of six storey building with a basement is Hulhumalè Plot A 10079 will substantially outweigh its imposition on the environment
  • Thumbnail Image
    Item
    Technical Report
    Environmental impact assessment for the proposed levelling and earthworks of football arena in Nadella, South Huvadhu Atoll
    (2016-08) Riyaz, Mahmood
    1- This is the Environmental Impact Assessment (EIA) report carried out for Gdh Nadellaa Island Council to undertake earthwork and ground leveling of Gdh Nadellaa football ground. The project is funded under the sports arena development project carried out the by the Ministry of Youth and Sports in all inhabited islands. The project involves dredging of 50x144.4 area in front of the boatyard in Gdh Nadellaa lagoon and sources the material for ground leveling and earthwork of the football field. The EIA was prepared as fulfillment of the requirement by the Environmental Protection Agency under the dredging and reclamation regulation (Regulation 2013/R-15) for granting permission for the project. Environmental Impact Assessment (EIA) of development projects is a requirement by the Environmental Protection and Preservation Act (EPPA) (law 4/93) of the Government of the Republic of Maldives. 2- This report has been prepared in accordance with the Environmental Impact Assessment Regulations published by the Ministry of Environment and Energy 2012 and covers both negative and positive environmental and socio-economic impact arising from the proposed project in Gdh Nadellaa Island. Major findings of this report are based on information gathered during the field inspection of both the existing environment and possible effects of the project activities, through extensive literature review and experiences gained from similar projects elsewhere in the Maldives. 3- The proposed project activity will take place in Gdh Nadellaa Island. Gdh Nadellaa is an inhabited island and lies in Huvadhu Atoll in a 30 km long elongated reef located on the south western periphery of Gdh. Atoll. Nadella is rectangular in shape, oriented NW-SE, and is found in a huge reef that contains over 85 islands of various sizes and shapes. The vegetated area of Gdh Nadellaa is 44 hectares the island is approximately 817m long and 526m wide. Total area of the house reef is 5615 ha (56 km2). The island occupies 0. 007 % of the total reef area. Average depth of the reef flat greatly varied along the reef platform ranging from 20-0.2m from MSL. The distance between the island shoreline and ocean-ward reef rim is 250m and on the atoll- ward side is approximately 1.2km 4- The terrestrial environment is similar to other inhabited islands across the Maldives. The topography of the island is almost flat and the relative variation in ground level in different parts. Existence of Kulhi on the northern part of the island indicates that the island slanting northwards. Gdh Nadellaa has lush tropical vegetation around the island dominated by coconut palms but Scaevola taccada (magoo) Kuredhi boashi, Halaveli and coconut palms surrounding the island. Hibiscus tiliaceus (dhigga) is abundant throughout the island followed by Thespesia populnea (hirundhu). Occasionally, Cordia subcordata (kaani) can be seen in the wooded area and rarely mature Fiscus benghalensis (nika) . 5- The northern shoreline of the island has been altered after the harbour development in 2009. Large area of the island was reclaimed adjacent to the harbour area. Semi enclosed water body which has openings to the lagoon was completely reclaimed by filling with dredged material from harbour and access channel development process. The playground has been development on the lowest part of the island that seems be the main reason for exposure for flooding during the rainy season. 6- The proposed project involves dredging 50x144.4 area adjacent to the dredged area in front of Nadellaa boatyard to a depth of -3m and source the dredged material, approximately 21675m3sand, for earthworks and leveling of Nadellaa playground. The area proposed for dredging and sources material for earthwork and leveling is a very shallow (0.5 at high tide, exposed at low tide) sand accretion zone in Nadellaa lagoon. The area is covered with sand and seagrass. Coral reef on the northern side, atoll ward side, is approximately 1.2km away from the shoreline. Comparison of historical photographs shows that seagrass developed on Nadellaa lagoon after the harbour development work. There are numerous coral patches and individual coral patches in the lagoon. 7- During the preparation of the EIA report an impact matrix, which is a standard tool for identifying the possible impacts of project activities, has been created for proposed development project in Gdh Nadellaa Island. The activities carried out during the construction and post-construction or operational phases are arrayed against a selection of environmental factors that may be affected directly or indirectly as a result of project activities. 8- The report has identified and described in detail possible change that would occur to the existing environment during the construction phase and have suggested appropriate mitigation measures for each and every impact identified in the report. Lagoon dredging has been identified as the most significant negative environmental impact that could be associated with the proposed project. Post development impact of the project, after the earthwork and leveling, has been identified very minor. Also the report found, based on similar project activities elsewhere in the Maldives, the island and the lagoon environment will recover from the expected impacts rapidly and will re-establish a new ecological balance soon. However the report has come-up with an extensive monitoring programme to monitor, mainly beach dynamics and ground water quality that will keep on monitoring the environmental changes associated with the development and make necessary adjustment to the activities of the project based on the findings of various measured environmental parameters suggested in the monitoring plan 9- The study has evaluated alternative options for some components of the project and discussed alternative location for the football ground, alternative sources of fill material and alternatives location to dredge and source fill material. On the basis this environmental impact assessment study and the impact mitigation measures proposed in the report will be duly implemented and recommendations are given due consideration, it is concluded that the activities of the project could go ahead as proposed. As the project is expected to bring numerous social benefits and minimize its negative impact on the environment.
  • Thumbnail Image
    Item
    Technical Report
    Environmental impact assessment for the proposed implementation of small scale desalination and bottling plant in Hulhudhoo, Addu City
    (2016-06) Musthafa, Mohamed; Hussain, Zahir
    The project has been proposed by a local entrepreneur (Mr. Abdulla Mutheeu, Nest Mead, S Hulhudhoo) to build and operate a small-scale water bottling plant in Hulhudhoo in Addu City. The proposed location of the facility is a leased land plot of 20000sq to the proponent from Addu City Council on the western side of Hulhudhoo. The land has been leased for a period of 10 years. The source water for desalination is to be drawn from a deep borehole drilled and installed within the site. The source water for the bottling will be purified desalinated water produced at site through desalination of deep groundwater (saline) through Reverse Osmosis (RO) process. The RO reject brine will be discharged into deeper lagoon in the west coast of Hulhudhoo. The electricity required for the operation will be obtained from the existing island power grid through FENAKA cooperation Hulhudhoo Meedhoo Branch which has been arranged. In emergencies electricity will be provided by the standby generator set of 200Kw to be installed along with the bottling plant. The daily production capacity of desalination unit will be at 80m3/day. The estimated daily production of bottled water will be at 350-400 bottles of 20L capacity (refillable) and 300 -500 bottles of 5L and 1.5L capacity. The focused market is local communities in Hulhudhoo and Meedhoo. The client aims to expand the production and thus sell these products in other islands in the atoll based on the demand. The potential environmental impacts during works implementation and during operation of the system are identified with appropriate mitigation measures. Positive and negative impacts, impact significance and impact severity from the proposed development have been primarily identified using checklist method along with consultations, expert opinions and professional judgements. Key impact zones identified are at vegetation clearance site and brine disposal location in marine water. Key impacts expected to be caused from the proposed project activities include loss of vegetation at building site due to vegetation clearance and suspension and increase of sedimentation at brine disposal site in marine water. These impacts are however low and insignificant due to the small scale of the project and appropriate mitigation measures and monitoring protocols have been proposed. Given the small scale of the project with minor environmental impacts and the existing need for purified bottled water in these communities, the consultants feel the project is feasible to be implemented as proposed provided the given mitigation measures are taken and monitoring is carried out.
  • Thumbnail Image
    Item
    Technical Report
    First addendum to the environmental impact assessment for the proposed sewerage system in Hulhudheli, Dhaalu Atoll, Maldives
    (2016-07) Sandcays
    This report addresses the environmental concerns of the proposed changes to the vegetation clearance component in the vegetated areas of the island, the details of which were not provided in the original EIA for the Proposed Sewerage System in Dh. Hulhudheli. During the construction phase it was found necessary to remove some vegetation, which had not been considered in the initial planning and design. In order to provide some of the newly registered plots with sewerage connections, the pipe network in these areas required vegetation clearance consisting mainly of coconut palms. Compensation has to be paid for some of the trees which are owned by the community. Therefore, a special announcement was made by the Council and only 2 members of the community claimed ownership of 2 coconut palms. According to the Council, they would make the necessary arrangements to pay compensation to these 2 parties. Since the trees in consideration being mature coconut palms with a few younger palms, the younger palms will be replanted and the rest will be used for timber wood. For each tree that is cut down, two trees will be planted in the newly reclaimed area where extensive plantation of coconut palms have been already carried out by the community in the recent past. Therefore, the proposed vegetation clearance would not have any additional impacts and no additional mitigation measures would be necessary. There are also no additional requirements for monitoring. However, the number of coconut palms cut down and those transplanted as well as the number of coconuts planted as compensation will be included within the revised monitoring programme provided in this report.
  • Thumbnail Image
    Item
    Technical Report
    Environmental impact assessment proposed beach and swimming area development Himmafushi Island, Male’ Atoll
    (2016-06) Zuhair, Mohamed; Shakir, Ibrahim
    The Secretariat of the Himmafushi Council (Himmafushi Island Council), Male’ Atoll proposes to develop a beach having 220m on the northern side of the island and a swimming are within the lagoon on the northern side. The swimming are will be developed after removing seagrass found within the lagoon from an area having 1,300sqm. It is expected that a total of 3,252cbm of material will be obtained from the removal of seagrass. The seagrass content will be removed before the material will be used on the proposed beach. The proposed beach will be developed having an average width of 10m and a height of 1.4m above MSL. Two methods of material excavation will be used during the project implementation. Initially removal of seagrass will be undertaken by use of excavator and sand from the area will be obtained by using a sand pump. Under the Maldives Environmental Protection and Preservation Act (Law No. 4/93) and EIA Regulation 2012, the proposed beach and swimming area development project requires an EIA to be carried out. The report presents major findings of the EIA report. This EIA is prepared as per the Terms of Reference (TOR) approved by Environment Protection Agency (EPA) on 20 March 2016. Baseline environmental condition of the proposed project site as well as socio-economic environment was conducted for which the environmental impacts and mitigation measures as well as project alternatives are presented. It was found that there is a great need from the community for developing the beach and swimming area on the island, which is recognized as an important community need. The assessments carried out on the biophysical environment on the northern side of the island indicate that the coral reefs within the project boundary had very little live coral cover and limited reef fish abundance and diversity. The depth of the project area ranges from -0.4m MSL in the nearshore areas to -0.8m MSL at the proposed burrow site. The current flow was from east to west reaching to speeds of 0.14m/s and 0.18m/s. The area in close proximity to the project has known surf points. Most of the lagoon environment was covered with seagrass Thalassia hemprichii. There are two Marine Protected Areas (MPAs) within close proximity of the project location. Thamburudhoo Thila MPA is located close to the project site at distance of 1.2km NE and Lankan Thila MPA is located 5km SW. There are two Sensitive Sites (SSs) within the vicinity of the project site, they are Huraagandu SS located at a distance of 4.3km north and Okebe Thila SS located at a distance of 7.4km SW. Key environmental impacts from the proposed project will be from sedimentation to the reef areas on the northern and NW sides, changes in the hydrodynamics of the burrow area and nearshore lagoon on northern side of the island as well as potential changes to the northern shoreline of the island and these impacts can be reduced by implementing various environmental management and mitigation measures such as undertaking excavation, sand pumping and beach nourishment operations coinciding with low tide and on calm days to reduce spread of sedimentation as well as undertaking the operations in the quickest possible timeframe to reduce impact exposure period. Although there are some environmental impacts from the proposed project, most of these impacts can be reduced and mitigated by use of appropriate methodology and timing. The effectiveness of these methodologies can be documented by implementing a comprehensive monitoring programme. Also, with positive socio-economic outlook of the project and the community needs for the project, it is concluded that the project should go ahead as planned.
  • Thumbnail Image
    Item
    Technical Report
    Environmental impact assessment for the proposed shore protection project in Kurendhoo, Lhaviyani Atoll, Maldives
    (2015-12) Sandcays
    This report discusses the findings of an environmental impact study under the shore protection project proposed for Kurendhoo in Lhaviyani Atoll. The project is proposed by Ministry of Environment and Energy. The project comprises of the protection of the eroding area on the southeast corner end of the island, adjoining the football ground. Shoreline at this part of the island has to be protected for safeguarding the football ground and protect the area from severe erosion. A 220m long rock boulder revetment has been proposed. The project also involves backfill of the proposed revetment area and behind the previously proposed breakwater on the north by getting sand from approved borrow areas. The project will be undertaken together with the ongoing harbour project and is estimated to take about 120 days with a manpower requirement estimated at 27 and involving heavy machinery including excavator, dump truck, loader and crane. A number of alternatives to the proposed project components have been identified in this document. Of these, the preferred alternative is a groyne field with a nearshore submerged breakwater. The cost of the preferred alternative is similar and the protection to updrift and downdrift locations are further enhanced by appropriately-designed groyne field. Other alternatives include just a groyne field or a semi-submerged breakwater. Rock boulders is the preferred material for the proposed shore protection while geotextile bags or geotextile tubes may be used as a cheaper alternative but would not be as effective as rock boulders. There are not many options to be identified as borrow areas since the island is surrounded by quite narrow reef flats and there are no lagoon areas with fine sand. Therefore, the alternative would be to bring material from a lagoon nearby and have the material taken to the fill location in trucks or pumped to fill location. However, due to the small scale of the project, alternative borrow areas have not been considered except those areas that have already been approved. Environmental impacts were assessed for both the construction and operational phases of the project. Most of the direct, negative environmental impacts identified for the construction phase of the project were minor negative; the main impact being sedimentation during the filling of the proposed fill areas. However, these impacts are of low significance while the benefits of the proposed project outweigh the negative impacts including the protection to the football field, shore protection to the beach in the area as well as downdrift locations. The fill areas shown in the proposed project are the same areas identified in the EIA and the EIA Addendum for the harbour project. Therefore, in principle those areas have been approved. However, for the purpose of this EIA, the borrow areas are different from those proposed earlier. According to the Council, the area identified on the SW side is preferable for dredging because this area is more suitable for a creating an area for swimming since the reef extent on this area is greater than in other areas. Since it does not have adequate swimming depths, deepening this area provides the required fill for the southeast end while creating swimming area for the island that lacks swimmable area around the island. The creation of the swimming area or an artificial beach in the proposed area, however, is not within the scope of this EIA report. The impact on coral reef is also less in this area since the net flow in this area is generally towards the eroded southern end and the reef flat and slope are devoid of live coral and mainly with bedrock. For the fill area on the north, the harbour area would be quite suitable as it would provide sufficient material for the proposed fill area while keeping the impacts to an already impacted area. Therefore, it is considered most suitable to dredge material for the northern fill from the harbour area and that for the southeast fill from the southwest lagoon. The small borrow area shown on the north may be considered only if adequate fill material cannot be obtained. Since there are a few impacts, there are no specific mitigation measures for the proposed project. General mitigation measures, involving appropriate construction management such as working during low-tide as much as possible and rigorous supervision during project implementation are recommended Since monitoring has not been undertaken in the past for the harbour project, it is recommended to carry out monitoring for this project. This project has linkages with the harbour project and therefore the recommended mitigation measures and monitoring programmes in the EIA and Addendum for the harbour project shall be undertaken in conjunction with the proposed shore protection project. In conclusion, it appears justified, from a technical and environmental point of view, to carry out the proposed shore protection project. Since alternatives have not been considered or discussed with the relevant stakeholders including the Council, it is recommended to consider all potential alternatives to shore protection, including those identified by the EIA Consultants, before proceeding with the project.
  • Thumbnail Image
    Item
    Technical Report
    Environmental impact assessment for the proposed sewerage system in Ihavandhoo, Haa Alifu Atoll, Maldives
    (2015-11) Sandcays
    This report discusses the findings of an environmental impact study under the proposed sewerage system project at HA. Ihavandhoo. The project is proposed by Ministry of Environment and Energy. The project entails establishment of a proper island-wide sewerage system with a sea outfall. The proposed project will involve installing a pipe network to collect sewage from all the households on the island and necessary pumping stations. Currently raw sewage is disposed onto the ground via house-level soak-pits; polluting groundwater greatly. The proposed outfall will pump wastewater beyond the house-reef at over 7m depth. A number of alternatives to the proposed project components have been identified in this document. Of these, the preferred alternative is to change the outfall location. It is also proposed to consider a treatment plant in the design, though the consultants are of the opinion, proposed system without a treatment plant but changed outfall location is the best option. Other alternatives include considering different disposal options; ground and lagoon, which are not recommended for reasons of greater environmental pollution. Environmental impacts were assessed for both the construction and operational phase of the project. Most of the environmental impacts identified for the construction phase of the project were minor negative; these include sedimentation from installing the outfall and temporary salinization of groundwater from de-watering to lay out the pipe network and pump stations. However, the impacts identified for the operational phase of the project were mostly moderate to major positive; improvement of groundwater quality from stopping the current sewage disposal practise and reduction of related health hazards. Disposal of sewage via proposed sea outfall is considered to have a minor negative impact. The main mitigation measures for this project during the construction phase are similar to other sewerage projects such as dust control plans, working during low- tide as much as possible and rigorous supervision. In case of deterioration of groundwater quality due to potential dewatering during construction of lifting stations in residential area, measures to water plants in the area that may be affected due to dewatering shall be in place. The design shall also ensure that dewatering is minimized. As for the operational phase trained maintenance staff to service the sewerage system and regular check-ups has been suggested in addition to monitoring water quality as well as reef health for potential impacts. Increasing awareness on groundwater conservation and promoting sustainable groundwater aquifer management, especially the skimming well technology has been suggested. The Proponent is willing to undertake monitoring during and after the construction phase in addition to undertaking the mitigation measures proposed by the consultants. In conclusion, it appears justified from a technical, administrative and to some extent environmental point of view, to carry out the proposed sewerage system development project. The alternative of wastewater treatment will involve greater operational costs; therefore, it is recommended to proceed the project as proposed while keeping the option open for future wastewater treatment, as and when required.