Environmental impact assessment

Abstract

The development objective of the Enhancement and Strengthening of Power Transmission Network in Eastern Region Project is to increase transmission capacity and reliability of the grid network in the eastern region. Some of the negative impacts are includes : (i) noise pollution due to construction activities, generators and construction vehicle movement; (ii) air pollution and dust generation due to construction activities, generators and construction vehicle movement; (iii) traffic congestion and road accident due to movement of construction vehicles; (iv) pollution due to wastes (construction wastes from construction activities & general wastes from workers’ camps); (v) health and safety risks of construction workers; (vi) drainage congestion will be occurred in the surface drains within the substation area if OM (vii) due to adequate reliability of power supply, social life and economic condition of the people will be improved; (viii) water of nearby pond will be polluted in case of dumping of project wastes into pond and washing of project vehicles; (ix) nearby pond water will be polluted in case of dumping of project wastes into the pond and washing of project vehicles; Some of the mitigation measures are includes : (i) specific training will be focused on minimizing dust and exhaust gas emissions from heavy construction vehicles. Drivers of vehicles used during construction will be under strict instructions to minimize unnecessary trips and minimize idling of engines. Dust suppression facilities (back pack water sprayer) shall be available where earth and cement works are required; (ii) regulate use of horns and avoid use of hydraulic horns in project vehicles; (iii) engage flagman specially at the entry of the substation sites and construction camps for traffic control; (iv) solid wastes collection system will be essential, which should include separation and collection of solid wastes in the dustbins/waste containers throughout the work site, construction yard/labour camp; (v) safety signs, health signs, prohibition sign, warning sign, mandatory sign, emergency escape sign, first-aid sign, information sign, signboard, supplementary signboard, safety collar, symbol, pictogram, illuminated sign, acoustic signal, verbal communication and hand signal must be fitted at the designated sites of the subproject areas; (vi) clean the drains, specially during monsoon regularly; (vii) ensure security of substation in collaboration with law enforcing agencies; (viii) all project vehicles must be washed in the designated project garage but not in the nearby pond; (ix) plantation of minimum 272 saplings to replace felled trees on the side slopes of the access roads during monsoon period.