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Table 4.1 Checklist for Preliminary Initial Environmental Examination Applicable columns with the following impact degree are marked with “X”. SEI : Significant Environmental Impact A : The subject SEI is unquestionably induced by the Project. B : The subject SEI is likely to be induced by the Project. C : The SEI is not fully known. D : There is no possibility that the subject SEI is likely to be induced by the Project. Categories of Evaluation Environmental Impact A B C D Evaluation Basis Social Environment 1. Planned residential settlement 2. Changes in bases of economic activities 3. Adjustment & regulation of water or fishing (riparian) rights 4. Spreading of endemic diseases 5. Increase in domestic and other human wastes 6. Impairment of historic remains and cultural assets 7. Impairment of buried assets Natural Environment 1. Changes in vegetation 2. Negative impact on important or indigenous fauna and flora 3. Degradation of ecosystems with biological diversity 4. Soil erosion 5. Soil contamination by agrochemicals and others 6. Devastation or desertification of land 7. Ground subsidence 8. Change in surface water hydrology 9. Change in ground water hydrology 10. Impediment of inland navigation 11. Water contamination and deterioration of water quality 10-65 Table 4.2 Definition of Environmental Item Categories Categories of Definition Environmental Impact Social Environment 1. Planned residential New land settlement implemented in agriculture & rural development projects such as land clearing & leveling sea/swamp reclamation and Settlement irrigation development; settlement expected for nomad, land less farmers or shifting cultivators. 2. Changes in bases of Forced or involuntary relocation of economic bases or means such as farmland, fishing grounds, etc., under a project due to land acquisition, Economic activities changes in land use regulation, and deterioration or depletion of bases or means for economic activities. 3. Adjustment & regulation Adverse development effects on water or fishing (riparian) rights and necessary adjustments or regulations. of water or fishing (riparian) rights 4. Spreading of endemic Spreading of endemic diseases attributable to the adverse effects of diseases development. 5. Increase in domestic and Increase in domestic and other human wastes due to the consequences of other human wastes development such as population increase. 6. Damage to aesthetic sites Direct or indirect negative effects on aesthetic features as a result of development. 7. Impairment of buried Impairment or destruction of buried assets due to development activities. assets Natural Environment 1. Changes in vegetation Direct or indirect deterioration or degradation of vegetation due to development activities including removal of vegetation cover, alternation of land use, encroachment into forest, alteration of environmental conditions, etc. 2. Negative impact on Adverse effects on important or indigenous animal & plant species due to important or indigenous destruction of or changes in habitats. fauna and flora 3. Degradation of ecosystems Degradation of ecosystems that allows the wild species of plants and animals with biological diversity to withstand external stress. 4. Soil erosion Washing or blowing away of soil from the earth surface by the action of water or wind. 5. Soil contamination by Accumulation of agrochemicals in soil with high residual toxicity. agrochemicals and others 6. Devastation or Deterioration of land productivity or desertification caused by artificial or desertification of land natural impacts. 7. Ground subsidence Subsidence of ground caused by the dehydration or drying of wetlands, peat swamp, or reclaimed lands, or excessive exploitation of groundwater. 8. Change in surface water Alteration of river discharge or water level as the effects of reservoir hydrology construction, irrigation water intake, or drainage. 9. Change in ground water Changes in the groundwater recharge mechanism or groundwater table hydrology caused by infiltration of irrigation water and exploitation of groundwater. 10. Impediment of inland Adverse impacts on navigation due to development activities. navigation 11. Water contamination and Deterioration of water quality due to development activities. deterioration of water quality 10-66 Table 4-1 Preliminary Survey for Initial Environmental Examination in the Rainy Season 1. Existing Kossou Hydropower Dam Applicable impact degree (SEI means Significant Environmental Impact) is indicated in " Evaluation Mark" column with a mark according to : A : the subject SEI is unquestionably induced by the Project B: the subject SEI is likely to be induced by the Project C : the SEI is not fully known D: there is no that the subject SEI is likely to be induced by the Project CATEGORIES OF Evaluation Evaluation Basis ENVIRONNEMENTAL IMPACT Mark Social Environment 1-Planned residential settlement A Several settlements and buildings are reported 2-Changes in bases of economic activities A Expropriations are reported, Introduction of Cafe and Cocoa on new destination location 3-Adjustment & regulation of water or fishing B No known reference to any water or (riparian) rights fishing law 4- Spreading of endemic diseases B Bilharziose and onchocerkose 5- Increase in domestic and other human C not reported wastes 6- Impairment of historic remains and C not reported cultural assets / Damage to aesthetics sites 7-Impairment of buried assets B Mining production Natural Environment 1-Changes in vegetation C not reported 2-Negative impact on important or B Induced by intense and uncontrolled indigenous fauna and flora fishing activities 3-Degradation of ecosystems with biological C not reported diversity 4-Soil erosion C Still few 5-Soil contamination by agrochemicals and C not reported others 6-Devastation or desertification of land C not observed 7-Ground subsidence C No subsidence 8-Change in surface water hydrology B Lessening in length of some tributary rivers 9-Change in ground water hydrology C not reported 10-Impediment of inland navigation C Evolution reported 11-Water contamination and deterioration of C not reported but attention should be paid water quality to the gold mines rejections 10-67 Table 4-2 Preliminary Survey for Initial Environmental Examination in the Rainy Season 2. Existing Buyo Hydropower Dam Applicable impact degree (SEI means Significant Environmental Impact) is indicated in " Evaluation Mark" column with a mark according to : A : the subject SEI is unquestionably induced by the Project B: the subject SEI is likely to be induced by the Project C : the SEI is not fully known D: there is no that the subject SEI is likely to be induced by the Project CATEGORIES OF Evaluation Evaluation Basis ENVIRONNEMENTAL IMPACT Mark Social Environment 1-Planned residential settlement A Several settlements of new buildings and moving of population are reported 2-Changes in bases of economic activities A Expropriation, development of commercial activities such as fish, food, transport 3-Adjustment & regulation of water or fishing C not reported (riparian) rights 4- Spreading of endemic diseases B Onchoserkose 5- Increase in domestic and other human C not reported wastes 6- Impairment of historic remains and C not reported cultural assets / Damage to aesthetics sites 7-Impairment of buried assets C not observed Natural Environment 1-Changes in vegetation B Degradation of vegetal cover due to water remaining after invading 2-Negative impact on important or B Negative impact on fauna indigenous fauna and flora and flora 3-Degradation of ecosystems with biological B Degradation of ecosystem diversity 4-Soil erosion B Important slope and presence of desert area favor erosion 5-Soil contamination by agrochemicals and C not reported others 6-Devastation or desertification of land C not reported 7-Ground subsidence C not reported 8-Change in surface water hydrology B Transformation of rivers in bays 9-Change in ground water hydrology B Elevation of static level of phreatic waters 10-Impediment of inland navigation C Evolution of inland navigation 11-Water contamination and deterioration of C not reported water quality 10-68 Table 4-3 Preliminary Survey for Initial Environmental Examination in the Rainy Season 3. Comoe Basin Applicable impact degree (SEI means Significant Environmental Impact) is indicated in " Evaluation Mark" column with a mark according to : A : the subject SEI is unquestionably induced by the Project B: the subject SEI is likely to be induced by the Project C : the SEI is not fully known D: there is no that the subject SEI is likely to be induced by the Project CATEGORIES OF Evaluation Evaluation Basis ENVIRONNEMENTAL IMPACT Mark Social Environment 1-Planned residential settlement C non existent 2-Changes in bases of economic activities C non existent 3-Adjustment & regulation of water or fishing C none (riparian) rights 4- Spreading of endemic diseases B Onchosercose 5- Increase in domestic and other human C non significant wastes 6- Impairment of historic remains and C non existent cultural assets / Damage to aesthetics sites 7-Impairment of buried assets C not reported Natural Environment 1-Changes in vegetation C Implantation of large extensive plantation fields 2-Negative impact on important or B destruction of some vegetal species and indigenous fauna and flora disappearance of some animal species 3-Degradation of ecosystems with biological B moving of elephant to Bia area diversity 4-Soil erosion B Important slope and presence of desert area favor erosion