ownership to the Contractor, in addition to instilling in him/ her a thorough understanding of the pertinent issues. The responsibility for supervision of the implementation of all the proposed mitigation measures during construction and the defects liability period will lie with the Supervising Engineer, while the Contractor will be responsible for day to day operational matters of construction, which will include implementation of mitigation measures that he is responsible for. After the defects liability period, responsibility for the operation and maintenance of the scheme will rest with the Factory Managers. The table also presents an estimate of the costs of environmental management and mitigation. 47
Table 17: Environmental and Social Management Plan Environmental / Social Aspects / Impacts Proposed Mitigation and Aspects for Monitoring Responsibility for intervention and / or monitoring during design, construction and defects liability period Responsibility for mitigation, monitoring and / or maintenance after defects liability period Monitoring means (d) = design / preconstructi on ©= construction (o)= Operation Recommende d frequency of monitoring Estimated Cost (KShs) ENVIRONMENTAL MANAGEMENT PLAN Waste generati on Solid Waste - To begin with, all measures should be employed to minimize the amount of waste generated-this can be done by practicing 3Rs- Reduce, Reuse, Recycle, whichever applicable. - A waste management plan would be prepared and followed - Organic waste to be composted for reuse while inorganic waste should be properly disposed. - Proper waste disposal in accordance with laws and Design Engineer, Supervising Engineer, Contractor Factory Manager (d)-verification of design ( c )-inspection (o)- inspection (d)-once after design of structures is complete (c)-continuous ( o)- Continuous Included in construction and operation cost 48
regulations of the land - Well maintained temporary latrine facilities would be made available for construction workers. Liquid waste (Industrial process waste water, Gray, black waters. - Well designed and properly constructed septic tank to be constructed. - Use other water treatment technologies such as: use of constructed/artificia l wetland - Use of bio-digesters - Use of stabilization ponds/lagoons - Use of waste treatment plants such a Bio-box or the Vex-P system - Connection to the local authority sewage system- depends on availability of sewer system - Use of conservancy tanks, partial treatment and pumping to local authority sewage Design Engineer, Supervising Engineer, Contractor Factory Manager d)-verification of design ( c )-inspection (o)- inspection (d)-once after design of structures is complete (c)-continuous ( o)- Continuous -Monitoring for any leachate should be done near septic tank. Included in construction and operation costs 49
system Change s in Hydrolo gy Surface flow/ Impeded flow - Design of culverts and waterways (runoff) to ensure unimpeded flow/ surface runoff through project site - As far as possible, the drainage plans follow natural regimes to prevent, flooding, and vegetation
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