GAZETTE NOTICE NO. 10433

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, Boredo Supplies Limited, proposes to develop a waste handling facility by installing an incineration plant with 2 incinerators designed to handled 20 — 500Kg/Batch of hazardous waste which include a boundary wall, entry points, generator room, weighbridge, associated facilities and amenities in Plot L.R. No. 23961, in Kinanie Area, Machakos County. The following are the anticipated impacts and proposed mitigation measures: Possible Impacts Mitigation Measures CONSTRUCTION PHASE Increased storm • Roof water to be harvested and stored in water, runoff and underground reservoirs for use in general soil erosion cleaning and in the toilets. The tanks should have a capacity of at least 100, 0001itres. • A storm water management plan that minimizes impervious area infiltration by use of recharge areas and use of detention and/or retention with graduated outlet control. • Apply soil erosion control measures such as leveling of the project site to reduce run- off velocity and increase infiltration of storm water into the soil structure should be designed. • Ensure that construction vehicles are restricted to existing roads to avoid soil compaction within and around the project site. • Site excavation works to be planned such that a section is completed and rehabilitated before another section begins. • Construction of soil-galleys on sloppy sections. • Roof catchments will be used to collect the storm water for some uses e.g. washing of floors and cars. Increased solid waste • Use of an integrated solid waste generation management system i.e through a hierarchy of options: reduction, sorting, re- use, recycling and proper disposal. • Through accurate estimation of the sizes and quantities of materials required, order materials in the sizes and quantities they will be needed, rather than cutting them to size, or having large quantities of residual. • Ensure that construction materials left over at the end of construction will be used in other projects rather than being disposed of. • Use of durable, long-lasting materials that will not need to be replaced as often, thereby reducing the amount of construction waste generated over. Possible Impacts Mitigation Measures • Provide facilities for proper handling and storage of construction materials to reduce the amount of waste caused by damage or exposure. • Purchase of perishable construction materials such as paints should be done incrementally to ensure reduced spoilage of unused materials. Increased storm • water, runoff and soil erosion • Use building materials that have minimal or no packaging to avoid the generation of excessive packaging. • Reuse packaging materials such as cartons, cement bags, empty metal and plastic containers to reduce waste at the site. • Dispose waste more responsibly by dumping at designated dumping sites or landfills only. • Waste collection bins to be provided at designated points. • Running educational campaigns amongst workers, e.g. through use of posters, to encourage reuse or recycling of the solid waste. Roof water to be harvested and stored in underground reservoirs for use in general cleaning and in the toilets. The tanks should have a capacity of at least 100, 0001itres. • A storm water management plan that minimizes impervious area infiltration by use of recharge areas and use of detention and/or retention with graduated outlet control Possible Impacts Mitigation Measures • Sensitize construction drivers to avoid gunning of vehicle engines or hooting especially when passing through sensitive areas such as churches, residential areas and hospitals. • Ensure that construction machinery are kept in good condition to reduce noise generation. • Ensure that construction machinery are kept in good condition to reduce noise generation. • Ensure that all generators and heavy-duty equipment are insulated/placed in enclosures to minimize ambient noise levels. • Initiate full operationalization of the incinerator immediately by providing adequate diesel. • Avoid open burning of to reduce on noise pollution from explosions. OPERATION PHASE Increased • Ensure electrical equipment, appliances energy and lights are switched off when not being consumption used. • Install energy saving fluorescent tubes at all lighting points instead of bulbs which consume higher electric energy. • Ensure planning of transportation of materials to ensure that fossil fuels (diesel, petrol) are not consumed in excessive amounts. High water demand • Apply soil erosion control measures such as leveling of the project site to reduce run- off velocity and increase infiltration of storm water into the soil structure should be designed. • Ensure that construction vehicles are restricted to existing roads to avoid soil compaction within and around the project site. • Site excavation works to be planned such that a section is completed and rehabilitated before another section begins. • Construction of soil-galleys on sloppy sections. • Monitor energy use during construction and set targets for reduction of energy use. • Have provision for the installation of solar panels as per the provisions of the 2012 and the Energy (Solar Photovoltaic Systems) Regulations. • Harness rainwater for some domestic uses such as general cleaning, in the toilets and gardening (roof catchment), hence the need for a dual water distribution system within the building. • Install water conserving taps that turn-off automatically when water is not in use as well as low flush toilets and waterless urinals. • Roof catchments will be used to collect the storm water for some uses e.g. washing of floors and cars. Dust emission • Ensure strict enforcement of on-site speed limit regulations. • Avoid excavation works in extremely dry weathers if/and when possible. • Sprinkle water on graded access routes when necessary to reduce dust generation by construction vehicles. • Personal Protective equipment to be worn. Exhaust emission • Vehicle idling time shall be minimized. • Alternatively, fueled construction equipment shall be used where feasible; equipment shall be properly. • Sensitize truck drivers to avoid unnecessary racing of vehicle engines at loading/offloading points and parking areas, and to switch off engines at these points. Noise and vibration • Sensitize construction vehicle drivers and machinery operators to switch off engines of vehicles machinery not being used. Generation wastewater • Promote recycling and reuse of water as much as possible (need for a dual water distribution system within the building). • Install a discharge meter at water outlets to determine and monitor total water usage. • Promptly detect and repair water pipe and tank leaks. • Sensitize workers to conserve water by avoiding unnecessary toilet flushing etc. • Ensuring taps are not running when not in use. of • Conduct regular checks for sewage pipe blockages or damages since such vices can lead to release of the effluent into the land and water bodies. • Monitor effluent quality regularly to ensure that the stipulated discharge rules and standards are not violated. • Waste water will be channeled conservancy tank then directed to EPZA sewer line. 11th December, 2020 THE KENYA GAZETTE 4937 Possible Impacts Mitigation Measures Possible Impacts Mitigation Measures Occupational hazards • Ensure that provisions for reporting or injuries to works, incidents, accidents and dangerous visitors and general occurrences during construction using public prescribed forms obtainable from the Occupational Health and Safety Office (DOSHS) are in place. • Plant operators and worker training in hazardous-material management and annual refresher courses. • All workers should be provided with protective gear. These include working safety boots, overalls, helmets, goggles, earmuffs, respirators/masks and gloves. • A first aid kit should be provided within the site. This should be fully equipped at all times and should be managed by qualified person. • The proponent should have workmen's compensation cover (WIBA). It should comply with workmen's compensation • Adequate sanitary facilities should be provided and standard cleanliness maintained. • Safe operation procedures/ clear instruction provided to the workers and general public to ensure that safety is maintained • Workers operating within the high temperature zones should not exceed 2hrs continuous presence or/as may be directed by the Occupational Health and Safety Experts. • Mounting of safety signage's within and outside the incinerator plant • Enforcing adherence to safety procedures and preparing contingency plan for accident response in addition to safety education and training shall be emphasized. Machinery/equipment • Arratigeifitilts must be in plate for the safety medical examination of all construction. • Ensure that equipment and work tasks are adapted to fit workers and their ability including protection against mental strain. • All machines and other moving parts of equipment must be enclosed or guarded to protect all workers from injury. • Arrangements must be in place to train and supervise inexperienced workers regarding construction machinery use and other procedures/operations. • Equipment such as fire extinguishers must be examined by a government authorized person. The equipment may only be used if a certificate of examination has been issued. • Reports of such examinations must be presented in prescribed forms, signed by the examiner and attached to the general register. Electrical • Circuits must not be overloaded. safety • Distribution board switches must be clearly marked to indicate respective circuits and pumps. • There should be no live exposed connections. • Electrical fittings near all potential sources of ignition should be flame proof. • All electrical equipment must be earthed. Hazardous • Keep a record of all hazardous chemicals materials/chemical used at the premises, cross-referenced to safety and storage the appropriate chemical safety data sheets. • There should be no eating or drinking in areas where chemicals are stored or used. Oil spills • A designated workshop section of the site fitted with oil trapping equipment's to be planned for changes. • Such an area will be well protected from contaminating the soil. Hydrology and • Hazardous substance control and water quality emergency response plan that will include degradation preparations for quick and safe clean-up of accidental spills. • Hazardous-materials handling procedures to reduce the potential for a spill during construction and operation. • Identify areas where vehicle maintenance activities and storage of hazardous materials, if any, will be permitted. Airquality monitoring • ensure that the incinerator is functioning and control properly, and the chimney is clear of excessive soot. • Rigorously segregate waste so that no unnecessary PVC (IVs, etc.) waste is incinerated. • Ensure that the incinerator is preheated adequately and that supplementary fuel is added whenever necessary to Maintain the burning temperature above 600C. • Load the incinerator according to the recommended "Best Practices". • Adopt rigid quality control measures. • Installation of well-designed and well- operated fine-particle of Air pollution Control device (APCD) such as filtration collectors, including primary, fabric filters (baghouses); electrostatic collectors, including dry and wet electrostatic precipitators (ESPs) and ionizing wet scrubbers; and wet inertial-impaction collectors, including venturi scrubbers and advanced designs that use flux-force condensation enhancement techniques. • Odor removal by using activated carbon and good housekeeping . DECOMMISSIONING PHASE Solid waste • Ensure safety precautions have been observed to decommissioning especially in regards to metals. • Unrecyclable material to be transported by licensed waste transporters to NEMA licensed dump sites. Careful removal of lined ash it on site. EHS concerns • Appropriate personal protective equipment to be provided and properly used. • Appropriate training of workers on occupational health and safety issues. Site restoration and • Notify NEMA and other relevant rehabilitation authorities on the intentions to stop operations at least 6 months in advance and carry out decommissioning report then submit it to NEMA for review and approval. • Revegetate the project site. • Monitor the site for a year. Mitigation Measures • Dust and air pollution due to dust when excavated material is stock piled, should be limited by means of wetting (particularly dry season), covering with foil or working in small sections so that the trenches are backfilled with excavated soil within shortest possible period (maximum 2-3 days). • Settled areas within project access routes will be identified and maximum speeds of project vehicles will be established within these areas. • Speed limit of 15km per hour will be posted and enforced to reduce airborne fugitive dust caused by vehicular traffic. • Construction materials will be delivered in bulk to avoid repetitive movements of delivery vehicles. • Construction materials and stockpiled soils will be covered if they are a source of fugitive dust. • Transportation of materials will be done in such a manner that they do not fly or fall off the vehicle by covering or wetting friable materials. • Effluent /wastewater quality will be tested on a regular basis to ensure that its characteristics are within the set standards. Set out in the third schedule of Water Quality Regulations, 2006. • Proper measures will be taken to avoid accidental surface runoff intrusion from the manholes of the sewerage network, which can overburden the plant and cause discharge of partially treated wastewater front the wetland. • Trucks ferrying the sludge to disposal sites should be well maintained to avoid discharging of the waste materials along the way to the site. • Proper handling and drying of sludge will be done in drying beds, during dry season. • With continuous sampling and laboratory tests, the performance of the DTF will be optimized. • The greasy material from the grease trap will be regularly removed and stored in proper barrels and then collected and appropriately disposed with the municipal solid waste. Possible Impacts Dust pollution Surface and ground water contamination from wastewater and sludge Odors as a result of • mismanagement of solid wastes The greasy material from the grease and sand trap will be regularly removed and stored in proper barrels and then collected and disposed of with the municipal solid waste. • The staff of the plant will be properly trained, to enable them to handle grease and sand removal and taking samples for lab testing. • Produced residuals will be stored in closed containers and transported in enclosed container trucks to landfill site. • Aeration tanks will always be kept at an optimum aeration rate. • Proper landscape around the facility will be done to serve as a natural windbreaker and minimize potential odour dispersions, if present. • Odours will be reduced or prevented through normal housekeeping and improved operation and maintenance design procedures. The full report of the proposed project is available for inspection during working hours at: (a) Principal Secretary, Ministry of Environment and Forestry, NHIF Building, Community, P.O. Box 30126-00100, Nairobi. (b) Director-General, NEMA, Popo Road, off Mombasa Road. P.O. Box 67839-00200. Nairobi (c) County Director of Environment, Machakos County. 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 decision making process regarding this plan. MAMO B. MAMO, Director-General, MR/I4211144 National Environment Management Authority.