GAZETTE NOTICE NO. 8242

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, Mumbi Limited, is proposing to drill geothermal exploration wells within Kiambogo—Thome—Eletnentaita Geothermal prospect area approximately about 218km2 with the aim of providing steam to be used for electricity generation in geothermal power plants. at Kiambogo—Thome—Elementaita in Gilgil Sub-county, Nakuru County. The following are the anticipated impacts and proposed mitigation measures: Impacts Proposed Mitigation Measures Vegetation clearance • Restrict vegetation clearing to project sites by clear demarcation. Impacts Proposed Mitigation Measures • Multiple wells will be drilled on one well pad. This will reduce the number of drilling sites thus ensuring minimal vegetation clearance. • After drilling, re-vegetate around with native grass species to avoid colonization of cleared well sites by opportunistic and invasive species. Dust emission • Speed shall be limited to 40 Km/hr along the project access roads. • Regular sprinkling of water (at least twice a day) to suppress dust. • Vehicles carrying loose materials shall be covered. • All workers who are likely to be exposed to dust will be provided with suitable personal protective equipment. Air pollution — • Constant H2S gas monitoring within the gaseous emissions project site and H2S Measuring equipment will be regularly calibrated. • Personnel working in close proximity to areas with a likelihood of high concentration of H2S will be provided with proper PPEs. • Where gases emitted exceed safe levels and normal control measures fails, emergency procedures shall be activated. Solid waste • Prioritize options of waste reduction, generation reuse and recycling. • Sensitize all employees and visitors on proper waste management practices. • Comply to EMC (Waste Management) Regulations of 2006. • Donate recyclable/reusable materials to the local community. • NEMA Licensed waste handlers to be contracted to manage waste. Geological risks • Continuously undertake ground (ground subsidence deformation monitoring. and induced seismicity) • Installation of the real time data transmission system for the micro-seismic monitoring for efficiency in data processing and interpretation. • Communication of any geological and seismic hazards and associated emergencies to the local communities. Liquid wastes • Ensure all circulation ponds are well lined and fenced before discharge. • Reuse drilling fluids. • Sensitize local communities on dangers of using brine/spent geothermal fluids. • Hazardous wastes (used oil) to be separately held on paved and bunded area prior to fmal disposal by licensed waste handler. Noise and vibrations • The drilling rig and its components including the generators and other moving machinery shall be regularly serviced and maintained. • Warning signs shall be placed at all noise hazardous areas. • All wells under test will be fitted with silencers.