GAZETTE NOTICE NO. 1745

PURSUANT to regulation 21 of Environmental (Impact Assessment and Audit) Regulations, the National Environment Management Authority, (NEMA) has received an environmental impact assessment study report for the implementation of the proposed rehabilitation of Ngethu–Gigiri transmission. Kwa Maiko – Gigiri Pipeline is proposed to boost the transmission capacity of the Ngethu – Gigiri mains to 440,000 m /d. It is proposed to be a DN 800 and 900 PN 25 steel pipelines. The construction will be as follows: 11.13 km of DN 800 pipeline from Kwa Maiko to Kiambu and; 6.1 Km of DN 900 pipeline from Kiambu to Gigiri. The works will also involve rehabilitation and repair of the existing 3 No. pipeline from Ngethu - Gigiri, a distance of 36.4 km. The repair will consist of replacing/rebuilding broken chambers and missing air valves and reinstating eroded pipelines way leaves. THE KENYA GAZETTE 25th February, 2011 The following are the anticipated impacts and proposed mitigation measures. Possible Impacts Mitigation Measures Interference with the physical setting The design shall in no way propose to implement developments that shall hinder drainage, change the topography or introduce physical changes that are not in harmony with the physical setting of the Project area. The structures to be developed shall be aesthetically acceptable to blend in with the surrounding. These structures shall not form or end up being used by the resident population as access, bridges or for informal settlement or business. However the design could provide for limited use by pedestrians and non-motorized transport. Interruption of existing installations The following shall be done for all crossings of installations. Formal request for permission to cross, break in and built the water pipeline should be sort from all relevant. Ministries concerned and all other institutions affected. Formal engagement of key land and other property owners neighbouring the pipeline. Passing of relevant information to each of the affected parties. A work plan with clear responsibilities for each party shall be developed to ensure smooth execution of the construction; and On completion of works, a Certificate of Satisfactory. Works Completion shall be issued to the Proponent. Resettlement and land take A compensation strategy and resettlement shall be developed to enhance good relationship with the affected land owners. Involuntary acquisition shall mainly be used to acquire the land for the additional wayleave and for the land that shall be used to construct the Contractor‘s and Engineers Offices and for the accommodation of the construction workers, stores, workshop and kitchen among others. The use of Provincial Administration and elders where feasible shall be pursued and proper and legally binding land transfers shall be sort by the Proponent. It is recommended that a thorough public-proponent engagement be natured from the design / planning stage. Noise generation and vibration The following noise -suppression techniques shall be employed to minimise the impact of temporary construction noise at the Project site. Install portable barriers to shield compressors and other small stationary equipment where necessary. Possible Impacts Mitigation Measures Use of quiet equipment (i.e. equipment designed with noise control elements). Limit pickup trucks and other small equipment to a minimum idling time and observe a common-sense approach to vehicle use, and encourage workers to shut off vehicle engines whenever possible. Provision of appropriate personnel protective equipment; and Construct mainly during the day. Dust emissions and air quality Dust emissions shall be controlled by the following measures: Wetting all active construction areas as and when necessary to lay dust. Appropriately cover all trucks hauling soil, sand and other loose materials or require all trucks to maintain at least two feet of freeboard. Pave, apply water when necessary, or apply (non-toxic) soil stabilizers on all unpaved access roads, parking areas and staging areas at construction sites. Sweep when necessary (with physical sweepers) all paved access roads, parking areas and staging areas at construction sites. Disposal of excavated soil The excavated soil shall not be disposed off from the wayleave. Instead it is recommended that excavated soil be used to cover the laid pipeline and re- spread in areas to be landscaped to enhance aesthetics along the wayleave area to be acquired. Workers accidents and hazards during construction The Proponent shall develop and commit the Contractors to Site Occupational Health and Safety rules and regulations as stipulated in the Occupational Safety and Health Act, 2007. Workers accidents especially in deep trenching operations shall be mitigated by enforcing adherence to safety procedures and preparing contingency plan for accident response. In addition, safety education and training shall be emphasized. Extraction and use of construction materials The Contractor shall source construction materials such as sand and hard core from registered and approved quarry and sand mining firms whose projects have undergone satisfactory environmental impact assessment/audit and received NEMA approval. To reduce the negative impacts on availability and sustainability of the materials, the Contractor shall only order for what shall be required through accurate budgeting and estimation of actual construction requirements. Solid waste generation The construction waste be recycled or reused as much as possible to ensure that materials that would otherwise be disposed of as waste are diverted for productive uses. The Proponent shall put in place measures to ensure that construction materials requirements are carefully budgeted and to ensure that the amount of construction materials left on site after construction is kept minimal. Possible Impacts Mitigation Measures Use of durable, long-lasting materials that shall not need to be replaced often, thereby reducing the amount of construction waste generated over time. 25th February, 2011 THE KENYA GAZETTE 551 Soil erosion Minimizing the number of motorized vehicles on use. Rehabilitate disturbed areas. Provide scour checks on steep slopes or when working in loose soils. Manage erosion agents including water by channelling it into predetermined areas. Use predetermined tracks; and Avoiding machinery working in seasonally marshy areas, pans and floodplains. Increased domestic wastewater generation The Proponent shall invest in public sewer systems at a rate that can cope with the water supplied into the project area. The Proponent shall provide for long term plans to invest in a public sewerage system in the Project area. Vandalism of valves along the pipeline The Proponent through the relevant water Companies shall employ staff who shall scout the pipeline and ensure that the valves are not stolen. Measures shall be taken to include materials that are not susceptible to theft. The community shall also be educated not to tamper with the valves as tampering with the valves interfere with the system and also leads to wastage of water that would have been used by the community. The full report of the proposed project is available for inspection during working hours at: (a) Director-General, the National Environment Management Authority (NEMA), Kapiti Road, off Mombasa Road, P.O. Box 67839–00200, Nairobi. (b) Permanent Secretary, Ministry of Environment and Mineral Resources, N.H.I.F. Community, P.O. Box 30521, Nairobi. (c) Provincial Director of Environment, Nairobi Province. (d) Provincial Director of Environment, Central Province. The National Environment Management Authority invites members of the public to submit oral or written comments within thirty (30) days from the date of publication of this notice to the Director-General, NEMA, to assist the Authority in the approval process of the project. WILKISTER MAGANGI , for Director-General, MR1221947 National Environment Management Authority.