Project insights, by key expert for solid waste management Jan Skaaja
Fieldwork was conducted between February and April of 2024. Collaborating with local and national authorities, the PPIP Consultant has identified two suitable sites for regional landfills. One site is located in Vemasse, approximately 20 km west of Baucau and 40 km east of Manatuto, along the main road. The other site is in Cassa, approximately 17 km south of Ainaro town. These sites have received confirmation and approval from key stakeholders, including local authorities.
To design and establish safe and reliable landfill facilities, it is necessary to make thorough geotechnical investigations. From February to April 2024, in-situ investigations and geotechnical laboratory analyses are being carried out. This includes drilling four boreholes at each proposed landfill site, reaching a depth of 20 meters below the ground surface. Standard Penetration Tests (SPT) are being conducted at regular intervals in non-cohesive soils, while disturbed and relatively undisturbed soil samples are collected based on encountered soil strata. Standpipe Piezometers are being installed, allowing for the measurement of static groundwater table levels and subsequent water analysis. Relevant laboratory tests on soil samples are being performed to determine the engineering and index properties of the foundation soils. Additionally, chemical analyses are being carried out on selected soil samples. The outcome of these comprehensive geotechnical investigations will be two Geotechnical Reports, providing information for the continued progress of the solid waste management projects.
