Economic Implications

The economic model produces forecasts of the implementation costs. These forecasts are shown in Fig. 7.6 for Coastal 1 area and Fig. 7.7 for Coastal 2 area, for scenarios 2-8 as described in Table 7.6. The columns show the total cost of implementation in millions of New Israeli Shekels (NIS), and the lines show the cost of water desalination as a percentage of total costs. The model output, as illustrated in these figures, shows that irrigation with wastewater increases salinity

Fig. 7.6 The predicted increase in aquifer salinity by scenario for Coastal 1 area
Fig.

EsM3 Total —"—Desalination

7.7 The predicted increase in aquifer salinity by scenario for Coastal 2 area levels, and consequently increases the cost of desalination, but decreases the total cost of water supply. Greater restrictions increase the total costs significantly.

The results are shown for scenarios 2-8, with the following characteristics described next to each scenario: Town freshwater/ Wastewater salinity/Pumped water priority: T = Town, A=Agriculture.

The results are shown for scenarios 2-8, with the following characteristics described next to each scenario: Town freshwater / Wastewater salinity / Pumped water priority: T = town, A=Agriculture.

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