Academic Articles -- ޢިލްމީ ލިޔުންތަކުގެ ޖަމާ
Browse
132 results
Search Results
Item Environmental impact assessment report for Hulhumale’ swimming area and land based facilities development project(2010-03) Land and Marine Environment Resources group Pvt LtdThe non technical summary outlines the findings of the Environmental Impact Assessment of the proposed development of swimming track and associated land based facilities. The proponent of the project is Housing Development Corporation Plc. The proposed project involves development of a swimming track and associated land based facilities at the eastern side of Hulhumale. The swimming tracks will be 20m by 25m. The total length of both tracks is 50m. The plate form and access jetty will be constructed using floats. Land based area includes, restaurants, kitchens, food outlets, toilets, changing facilities and park (including a small children’s park) A scoping meeting to discuss the development proposal and determine the Terms of Reference (TOR) for the EIA report was held between the Client (Housing Development Corporation Plc), LaMer Group Pvt Ltd as the EIA Consultant, Ministry of Housing, Transport and Environment (water and sanitation section of EPA) and representatives from Environment Protection Agency (EPA) as the Regulator on 23rd November 2009. Data collection or field was carried out during January 2010 for assessment of existing environment. Since the scope of work of the proposed project is small, existing environment data was limited to reef health, general wave, tide condition and seawater quality assessment. The water quality assessment done at the proposed swimming track area revealed alarming levels of Enterococci levels which was probably due to high number of users and disregard to general hygienic values (showering before entry to water). Also it has to be noted that an outfall pipe is location near the swimming track area and this may have some level of leakage (although close inspection showed none. Alternatives are given for location of swimming track area, since contamination of seawater is major social impact. Assessing alternatives the location identified by HDC Plc during consultation with HDC seems to be a better candidate as a location for swimming track. Mitigation measures are discussed for the construction and operational stage of the swimming track area only.Item Post-tsunami infrastructure rehabilitation project : rehabilitation of 6 selected harbors : social and environmental impact assessment for the rehabilitation of the harbor in Makunudhoo island, Haa Dhaal atoll(2007-11) SOGREAH Consultants; Water SolutionsThis report discusses the findings of a social and environmental impact study undertaken by Water Solutions Pvt. Ltd. and SOGREAH consultants of France upon request from Ministry of Construction and Public Infrastructure. The project involves the rehabilitation of the existing harbour in Makunudhoo, Haa Dhaal Atoll with improved infrastructures. This project is initiated by the government of Maldives with funding from Agence Française de Dévelopement” (AFD) as part of the Tsunami rehabilitation programme. The harbour of Makunudhoo has been damaged to various extents and requires repair and upgrading, including deepening the harbour basin, and increasing slightly the size. A detail assessment of the environmental and social conditions was assessed based on which a rehabilitation project has been proposed. This EIA has been prepared to assess the social and environmental impacts of this proposed rehabilitation project. Major environmental impacts of the project have been identified as resulting mainly from dredging and disposal of dredged materials. Dredging will be undertaken in the harbour basin and to some extent in the access channel. In view of the assessment, the environmental damages to marine resources have not been considered major due to the limited boundary of the project and also due to confined nature of the project. The impacts are likely to be felt on an estimated 5% of the lagoon and reef‐flat of that extensive reef system. These environmental impacts were assessed for both construction and operation phase of the project. Mitigation measures for these anticipated impacts have been identified and outlined in detail, including sedimentation control methods and other measures. These mitigation measures will have to be followed in order to minimize environmental damage. Stakeholder consultations were held with various groups, including the community and the client in order to incorporate the socio‐ economic components in the project. The proposed rehabilitation plans for Makunudhoo has been prepared after considering the needs and requirements from the community by assessing and incorporating the outcomes from the extensive community consultations held during the data collection stage. It is inevitable that there would be some negative environmental impacts, especially when dredging is undertaken. However, these minor negative impacts out weight the socioeconomic benefits gained by rehabilitating the harbour. As a result, a comprehensive monitoring component has been suggested which takes in to consideration, the most important elements that require regular checks. This monitoring component will be adhered and will allow the assessment of long term changes, despite the limited nature of the impact. The most important consideration is the socioeconomic impacts that have been assessed mainly as positive in nature. Not only they are positive, but most importantly in the long term. Therefore, it appears justified from a technical and from an environmental point of view, to carry out the proposed rehabilitation project if the island is to absorb the economic gains achieved by the project.Item Environmental Impact assessment : for the proposed development of heavy load site in Thilafushi(2010-09) Zahid, AhmedThis report addresses the environmental concerns of the proposed reclamation of an area of about 25,300m2 (2.53hectares) to a height of about 1.3m above MSL by dredging a harbour inside the area that is reclaimed. The total volume of sand required for the reclamation is estimated to be about 56,000 cubic metres. In order to get this volume of sand using the proposed borrow area (harbour), it is estimated that the borrow area has to be dredged to about 5m. Otherwise, an additional volume of about 18,000m3 of sand would be required to reclaim the given area. The primary objective of the project is to create a harbour for the several barges, landing crafts and other vessels owned and operated by Heavy Load, to provide safe and adequate access to the facility and to provide space for the different activities carried out on the site as well as to improve the services provided by the facility. The proposed project area is on the southeast corner of Thilafushi, which is the official landfill island for the entire Maldives. Currently, the site has two sand beds on the west and eastern sides, which mark the eastern and western edges of the proposed reclamation area. The exact area is being currently finalised by Thilafushi Corporation Limited (TCL). Once TCL finalises the exact dimensions of Heavy Load Site, dredging and reclamation works will begin. The entire external periphery of the dredge area would be sheet piled prior to dredging and filling works so as to minimize sedimentation. The southern periphery, which faces the sea, would have further protection using rock boulders, which would be installed as a final step. The project is, therefore, expected to take about eight to twelve months. A large proportion of the reef flat on the southeast end of Thilafushi has been dredged to provide access to the different industrial plots of land in the area by large vessels with an entrance channel at the southeast corner of Thilafushi reef. The proposed dredging is similar in size, however, would have less impact on the marine environment in the area. The reef flat in this area is almost completely dead with a few live porites. The reef slope is also mainly dead. Given the currents in the proposed dredge area is slow and generally in a westerly direction, the potential for the sediments to move to the reef flat would be small. However, it should be noted that there is a lack of long term data to support this observation. Therefore, sediment settlement on the reef has to be minimized and the most practicable means to achieve this would be to sheet pile the reclamation area prior to dredging. This would minimize sedimentation while further mitigation measures including silt curtains at the discharge points of the silt passages may be used. However, this would only be necessary if the silt levels reach very high levels.Item Environmental impact assessment : for the removal of seagrass beach replenishment activities in Herathera Island Resort, Addu atoll, Maldives(2010-09) CDE ConsultingThe Herathera Island has been experiencing seaweed overgrowth for a number of years, even before construction began on the island. Similarly, the island does not have a natural beach system which is suitable for a resort product. An attempt was made in 2007 and 2008 to remedy these shortcomings by removing seagrass and undertaking beach replenishment. Unfortunately, the beach replenishment design and implementation was flawed and new seagrass colonies have started to emerge. The island is currently is a worse condition, particularly its beach system. These environmental issues are decreasing the economic value of the tourism product being offered Resort and is reaching a point where the product may be unviable. Immediate action is required to address these issues, thus, a new and improved beach replenishment and seagrass removal programme. The proposed project involves the removal of sea grass colonies and beach replenishment. Details of the proposed project components are outlined below. a) Sea grass removal The primary component of the project is seagrass removal. Seagrass areas covering approximately 200,000 – 250,000 m2 is proposed to be cleared (see Site plan in Appendix B), 100,000 m3 of dredge waste. TwoEIA for the proposed Seagrass Removal and Beach Replenishment Activities in Herathera Island Resort Prepared by: CDE Consultancy Page| ix methods have been proposed for the project: 1) using a sand pump; 2) using an excavator and; 3) soft measures. b) Beach Replenishment Beach replenishment has been considered as part of the project to mitigate the severe erosion on the island. The dredged waste from the sea grass removal activity, after cleaning and sorting, will be used to replenish the a 2900 m beach up to 10 m from the existing shore line. Additional sand will be dredged from borrow areas within the lagoon using sand pumps and excavators. Replenishment will be carried out using a three staged process. The first stage will collect and filter sediments on designated sites. The second stage will transfer the cleaned sediments to severe erosion zones using trucks. The final stage will profile the beach using fine sand. For the direct replenishment, sand will be pumped or transferred via barges to a designated location, where loaders and trucks and move the material.Item Initial environmental examination : for the proposed installation meteorological mast in Gaafaru island, North Kaafu atoll(2010-07) Aleem, AbdulThe purpose of this Initial Environmental Examination (IEE) report is to fulfil the requirements of the Environment Protection and Preservation Act to undertake an assessment of effects on the natural and human environment of the proposed installation of a meterological mast in the island of Gaafaru. The project involves construction of a meteorological mast commonly called “Met Mast” as the first phase of a much larger project, Development and operation of a wind park on the reef of Gaafaru. The development and operation of the Wind Park is a priority for the Government of the Maldives in order to meet the “Carbon Neutral Maldives 2020” strategic goals. In order for this wind park to be feasible, adequate data has to be collected. This proposed project is therefore the first phase of the project which involves installation of an 80 meter tall mast in the island of Gaafaru. The project is proposed in an area of the island where presently there is only boat building activities and the area being open pose no threat to any terrestrial tree species. The project does not involve cutting of any trees to erect the mast and hence is not considered to be environmentally damaging. The mast will be placed on concrete footings which will be buried at a depth of 5 feet and hence ensure that a firm support is provided. A total of seven footings will be constructed and this itself does not pose any environmental threats. The positive impacts or benefits of the project are enormous. These include, the collection of long term regional weather data that is not presently available in Maldives, promotion of renewable energy and increasing the awareness of renewable energy among the public, and lastly but not least, indirect social benefits from the project that results in increased visitors to the island by the project personnel. If data collected in this phase is adequate and feasible, the wind farm project in Gaafaru will take place and hence will bring enormous economic benefits to the island and the country. There are very few environmental impacts and they are also considered to be negligible or very minor. The project is therefore not considered to be of any threat to the environment, but has more social and economic benefits.Item Environmental impact assessment : first addendum : for the development of resort development project on Gaakoshibee Island, Shaviyani Atoll(2010-03) CDE ConsultingThe purpose of this document is to assess the potential environmental impacts and mitigation measures for the proposed changes to the resort development concept plan of Gaakoshibee. This document has been produced with reference to the original Environmental Impact Assessment (EIA) of the proposed resort and the EIA for developing a reef entrance near the island. 2. The primary rationale for the proposed alterations is to adjust the development plan from the observed shortcomings of the initial plan. The purpose of the proposed coastal protection measures is to control the predicted severe erosion in selected areas and to protect the investments (jetties and restaurants) going into these areas. 3. The study area for the purposes of this addendum is the Gaakoshibee Island and its immediate reef environment. Social impacts are not considered in this assessment as the general impacts of resort development have been addressed in the initial EIA. 4. The baseline conditions of the island are largely based on the original EIA documents. Additional information on some major changes to the environment is provided where appropriate. 5. The main developments proposed for the island include erosion prevention measures, wave energy reduction measures and changes to the locations of some buildings and jetties. Detailed description of the changes are provided in the next section. 6. This report covers the new changes proposed for the concept, its potential negative and positive impacts on the environment, potential mitigation measures required to minimize or manage these impacts and a detailed monitoring program. 7. This report is produced in accordance to the technical guidelines and EIA regulations prepared by the Environment Protection Authority. The principal approval for the changes to the concept was provided by the Ministry of Tourism on 22 February 2010 subjected to the EIA addendum approval (See Appendix A). This report is submitted to fulfill this requirement. 8. The Terms of Reference (ToR) for this project was issued after scoping meeting held at Environment Protection Agency (EPA) on 23 May 2010. The ToR is attached in Appendix L.Item Environmental impact assessment : for the development of a 14 Storey Building at H. Filigasdhoshuge, Malé, Maldives(2010-06) Jameel, AhmedMr. Ali Shareef is proposing to build a 14 storey hotel at H. Filigasdhoshuge. This Environmental Impact Assessment (EIA) report has been prepared in order to meet the requirements of Clause 5 of the Environmental Protection and Preservation Act of the Maldives to assess the impacts of proposed development at H. Filigasdhoshuge, Male’. The report has looked at the justifications for undertaking the proposed project components. Alternatives to proposed components or activities in terms of location, design and environmental considerations were suggested. A mitigation plan and monitoring programme before, during and after the works has also been proposed. The project component that has the greatest potential for environmental impact is the foundation component. The foundation type has been considered taking into consideration the noise and vibration impact from the deep pile foundation construction of project which was undertaken in the vicinity to the proposed site at Holiday Inn. The proposed project has proposed a raft foundation where piling technology has been chosen as a mechanism for shoring for the foundation construction process. A geotechnical investigation of the proposed project site was undertaken by the ELS – Amin International Pvt Ltd of Maldives in September 2008. The geotechnical investigation included the borehole investigation and Standard Penetration Tests. The geotechnical investigation revealed that the estimated settlement under the foundation would be less than 50mm which is acceptable for the type of foundation chosen for the building. Since the settlement under the foundation is small and a setback of 1 m has been provided between the plot boundary and the foundation, the ground settlement beyond the limits of the boundary would be too small to induce any significant damage to the neighbouring structures. A survey of the existing structural damage was carried out for all buildings that were located within a radius of 20m from the proposed building. The proposed project is expected to increase the housing units and commercial floor area available in Malé. It is inevitable that there would be some negative environmental impacts, especially when excavation is undertaken. Nevertheless, these negative impacts are not so severe to the extent that the project should not be allowed to take place. As a result, a comprehensive monitoring component has been suggested which takes in to consideration the most important elements that require regular checks. This monitoring component will be adhered and will allow the assessment of long term changes, despite the limited nature of the impact. The most important consideration is the socioeconomic impacts that have been assessed mainly as positive in nature. Not only are they positive, but most importantly would they remain positive for a long term. Therefore, it appears justified from a technical and from an environmental point of view, to carry out the proposed project in light of the existing socio‐economic developments.Item Initial environmental examination for a coral frame project(2010-07) Systems Engineering and Marine ConsultingThe potential environmental impacts of the development of a coral propagation project on the island of H.A. Manafaru are assessed. Manafaru is leased to Beach House Maldives and is operated by the Waldorf Astoria collection of the Hilton group. The assessment exposes the solutions and preferred alternatives as well as mitigation measures to minimize any negative impacts whilst trying to derive the maximum positive impacts from the project. Manafaru has very little coral cover after being degraded by the 1998 bleaching event. As it is important to be proactive in reef restoration, the resort management wishes to enhance the value of the island by propagating corals using the coral frame technique. The frames will be installed near the water villas and sparsely on the house reef. Coral fragments will be attached by a marine biologist and will develop into full colonies within a few years. Coral fragments from the house reef will provide a small number of fragments and will heal rapidly. Preference will be given to damaged colonies. 136 frames of 1m2 will be initially deployed, and after the first batch, the existing frames will provide fragments for transplantation. The project will start as soon as approval is granted, and as this is a long term project, it could span several years before completion. The island of Manafaru is located inside the northernmost atoll of the Maldives, and is subject to high winds and warming waters, which may be a cause of low coral survival. As the island is located in the middle of the atoll, the waves reaching its shores are diffraction of swells, and wind waves. As the energy encountered are of second magnitude, and the reef does not form a proper crest, the waves reach the island with less obstruction than most areas. Sand displacement depends on the predominant influence during different monsoons, forming a bulging beach rather than a sand tip.Item Environmental impact assessment for the proposed shore protection project in Kurendhoo, Lhaviyani Atoll, Maldives(2015-12) SandcaysThis 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.Item Environmental impact assessment for the proposed sewerage system in Ihavandhoo, Haa Alifu Atoll, Maldives(2015-11) SandcaysThis 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.