**7.1. Criteria description and application**

In Tunisia, there is not a Solid Waste Control Regulations for disposal site. Hence, criteria were selected according the MSW landfill siting guidelines of the countries legislation, extensive literature review, [1–4, 7, 9, 11, 13] assessment via questionnaire; availability of the data and local expert.

### *7.1.1. Exclusive criteria (constraints)*

In this study, 13 constraints criteria such as: (1) Soil permeability, (2) Elevation, (3) Slope, (4) Distance from coastal zone,(5) Depth to ground water table, (6) Distance from water supply (reservoirs, wells, boreholes, springs), (7) Distance from wetlands, (8) Distance from rivers, (9) Distance from irrigation canals, (10) Land use, (11) Proximity to roads, (12) Distance from protected areas, and (13) Distance from residential areas were selected for the computation process. The buffer zones in the different constraint layers are listed in **Table 3**.

**Figure 2** shows the maps layers of all the constraints criteria after buffering and restriction.
