GAZETTE NOTICE NO. 38

Pursuant to Regulation 21 of the Environmental Management and Co- ordination (Impact Assessment and Audit) Regulations, 2003, the National Environment Management Authority (NEMA) has received an Environmental Impact Assessment Study Report for the above proposed project. The Proponent, Kenya National Highways Authority, is proposing to dual Bomas—Kiserian—Corner Baridi (C58) and Bomas—Karen- Dagoretti—Market (C63) Roads. The project description is as follows: Bomas—Karen—Dagoretti Market (C63) Road The proposed road project is situated along the existing Bomas—Karen- Dagoretti—Kikuyu Road (C63) in Kiambu County. It is located in Nairobi and Kiambu Counties and measures about 14 km. It starts at the Junction of Seminary road near Bomas and ends at Dagoretti Market Tee Junction with D 412. Bomas—Kiserian—Comer Baridi Road (C58) Road The Project Road is located in Nairobi and Kajiado Counties. It starts at Bomas of Kenya, runs in a south westerly direction through Ongata Rongai passes through Kiserian and terminates at Corner Baridi. This is part of the main road ending in Magadi in Kajiado County. The proposed section for dualling is Bomas — Ongata Rongai — Kiserian — Corner Baridi which is approximately 27 km ending at Corner Baridi. Width of Carriageway The main carriageway shall contain at least two lanes each of 3m width for traffic flowing in each direction (two way four lane road) with 2m wide shoulders on both sides. 2m wide walkways shall be provided on both sides for the sections traversing built up areas with high pedestrian traffic. And provision of appropriate trapezoidal drainage channels. The following are the anticipated impacts and proposed mitigation measures: Impacts Proposed mitigation measures Loss of flora • Minimize number of trees and other (biodiversity) vegetation clearance. •Minimizing clearing and disruption to riparian vegetation. •Re-vegetation of disturbed areas with native plant species. •Protect all the ecologically critical areas such as riparian zones by clear delineation and planting of suitable indigenous plant species. •Staff training before the commencement of construction activities. •Selection a proper location to establish temporary camps and construction workshops (a land void of trees with sufficient distance from river) •Use of soils resulting from excavation in embankment, gardening and reclamation through planting native trees. Changes on faunal • Implement all mitigation measures for noise activity and effort to maintain it at the permissible standard level. •Selecting an appropriate period/season for construction work and refraining from it being synchronous with sensitive period for wildlife, such as pregnancy duration and giving birth. •The performance of mitigation measures for noise pollution and efforts to maintain it at the permissible standard level shall be effective in decreasing this impact. •Regulating the time-table for the mobilization of vehicles so as to prevent stress arising from noise pollution. •A time-table regarding rock blasting, so as to prevent stress arising from noise pollution. Water and soil contamination Soil erosion Extraction of natural • resources for construction Proposed mitigation measures •Prevention from spilling oil and grease compounds of vehicles and machinery on the ground so as to prevent soil pollution in the terrestrial ecosystem and its secondary impacts on wildlife through the food chain. •Prevention from the discharge of oil and grease compounds of vehicles and machinery, wastes and wastewaters into the river and streams so as to prevent the pollution of drinking water resources of wildlife. •Training of workers and staff about meaning and principals of environmental conservation, prevention methods relevant to polluting the terrestrial and aquatic environments, hunting prohibitions and the prevention of excessive disorder of wastes and debris. •Provide sufficient notice for utility companies to relocate and restore the connections. •Disconnection should be planned in consultation with affected stakeholders so as to minimize impact. Sensitive institutions like hospitals should be taken into consideration. All burrow pit sites shall be clearly indicated on a plan and approved by the local authority; appropriate authorization to use the proposed burrows pits and quarries will be obtained before commencing activities. •Burrow pits and quarries shall be located more than 100 meters from watercourses in a position that will facilitate the prevention of storm-water runoff from the site from entering the watercourse. •Notice will be given 14 days to nearby communities of intention to excavate in the borrow pits or quarries. •Burrow rehabilitation plans, will be prepared prior to use and approved by the KeNHA and County Govemment. •Storm-water and groundwater controls shall be implemented to prevent runoff entering streams and the slumping of soil from hillside above. •Compaction of loose material. •Diversion of runoff flows from construction sites. •Regular visits lead to the identifying of areas that have problems in regards to erosion and thus are given priority, so that corrective plans are implemented. •Soil excavation and embankment must be made for the immediate project area and unessential activities should be refrained from. •In order to compensate the damages incurred, due to the accelerated erosion, arising from construction activities, a control of natural erosion during the construction period must be taken under consideration. •Oil residuals including waste oil, lubricants, used filters, should be carefully collected and stored for safe disposal, in order to prevent spilling of contaminant hydrocarbons into runoff or groundwater. •Regular maintenance of site equipment and machinery should be carried out to ensure any leakages are detected and controlled. •Construction solid waste generated by activities can be disposed in areas approved by the county government that will be identified before commencement of construction activities. •Supervision of a representative from NEMA on the implementation of the above mentioned mitigation measures. Impacts Proposed mitigation measures Air pollution from • Sprinkle water on exposed dusty surfaces to dust and emissions reduce dust generation. •Trucks hauling soil should be covered with tarpaulins. •Checking, repairing and fixing the engines of vehicles and heavy machineries. All machineries and equipment should be maintained in good working order to ensure minimum emissions including carbon monoxide, oxides of nitrogen and sulphur, as well as suspended particles. •Affixing filters on the exhausts. •Utilizing masks for workers who are directly in the location where dust is dispersed. •Supervision by a representative from NEMA on the implementation of the above mentioned mitigation measures. •Staff training before the commencement of construction activities •Strict adherence to Air Quality Regulations, 2014. Noise pollution • Measuring the intensity of noise by utilizing the noise meter. In the case that, the level measured is higher than the permissible amount, all the methods to conserve the mental health of workers must be utilized to lessen the level of noise and decrease it to the standard level and shortening the period of noise generated should be taken under consideration. •Lubricating and regular repair of equipment and machinery. •Insulating engines which create noise. •Selecting an appropriate period for construction activities and refraining from it being synchronous with sensitive period for wildlife, such as their pregnancy and giving birth duration. •The contractor should adopt the best practicable means of minimizing noise. •For any particular job, the quietest available machinery should be used. •All equipment should be maintained in good mechanical order and fitted with the appropriate silencers, mufflers, or acoustic covers where applicable. •Stationary noise sources should be sited as far away as possible from noise-sensitive areas, and where necessary acoustic barriers should be used to shield them. •Pneumatic drills and other noisy appliances should not be used after normal working hours. •Workers should be given noise protection equipment such as earmuffs and be taught how to use them and supervised to ensure such safety procedures are being adhered to. •The public should be informed that short periods of noise may be inevitable but prior warning of when noisy activities are to take place and the days and times noise of when they could be expected should be widely publicized before the activity takes place. •Fixing engines and exhausts of heavy machineries. •Use of portable acoustic barriers to shield compressors and other noisy equipment where necessary. •Observe and practice the recommended noise regulations •Elevating the speed of work, so as to shorten the construction period as much as possible. •Adherence to Noise and Excessive Vibrations Pollution (Control) Regulations, 2009. Impacts Disruption of public utilities 5th January, 2018 THE KENYA GAZETTE 23 Impacts Proposed mitigation measures Disruption and loss • Sufficient (up to 3months) notice should be of businesses issued to the affected business to relocate. •Alternative sites, where feasible, should be provided to tree nursery traders. KeNHA. Increased risk of • The contractor should put in place diseases with communication and information program. migrant workers • Provision of condoms to the workers. Impact on historical • Training of the construction workers in and cultural sites identifying signs for materials of archaeological and historical value such as bones, shards, metal works, etc. •On suspicion of findings, the contractors to cease work, notify the supervising engineer of the find or disputes relating to archaeological relics or cultural religious sites. •Follow the chance find procedure. Occupation Health • Workers shall be provided with appropriate and Safety personal protective equipment, such as coveralls, boots, mittens, gloves, dust and fume masks, all of which must be regularly replaced. •The abstract of the Occupational Safety and Health Act. 2007 must be displayed at prominent places within the site. •Well stocked first aid box which is easily available and accessible should be provided within the construction site as well as at least an ambulance. •Ensure the working hours are controlled and that employees are not allowed to extend the working hours beyond an acceptable limit for purposes of gaining extra pay •Ensure that all site personnel are provided with an adequate supply of safe drinking water, which should be at accessible points at all times. •Provide conveniently accessible, clean, orderly, adequate and suitable washing facilities within the site •Comply with provisions of OSHA 2007. The full report of the proposed project is available for inspection during working hours at: (a)Director—General. NEMA. Popo Road, off Mombasa Road, P.O. Box 67839-00200. Nairobi. (b)Principal Secretary, Ministry of Environment and Natural Resources, Building. Community, P.O. Box 30126-00100, Nairobi. (c)County Director of Environment, Nairobi City County, Kajiado County and K iarnbu County. The National Environment Management Authority invites members of the public to submit oral or written comments within thirty (3(0 days from the date of publication of this notice to the Director General. NEMA, to assist the Authority in the decision-making process of the plan. GEOFFREY WAHI iNGU, Director-General, MR/4167081 National Environment Management Authority.