The key project features of Keng Seuaten Project through the optimization can be summarized in Table 3.3-1. The extent of reservoir at full supply level +485 m can be drawn as shown in the map Figure 3.3-1. Due to the accuracy of the map, which is based on 20 m contour interval, the effect of reservoir inundation to the village cannot be clearly seen. The survey at the site by high precision GPS found that the lowest elevation of the village is still higher than the reservoir level.