4. Monitoring and control

The investments required to improve the quality and efficiency of facilities in line with new regulatory requirements reflect the importance attached to monitoring that is adapted and specific to each landfill site. The controls carried out during construction, the reinforcement of waste control at site entrances, the watertightness of the receiving soil and the final cover, and the monitoring of the drainage network and discharges are all important components. When choosing a monitoring technique, it is essential to know the immediate objectives, the parameters to be monitored and the techniques available.