The land is very close to the dam and less than 30 meters there's a canal with clear water pumped from the dam for general use. Water should not be more than 10 meters deep, in Pranburi most areas have water, as I'm deeper near the mountains I expect this water to be better than the sea, but we'll see.
My elevation, at the top of the city, the land can get pools of water during big rain because it's farm land, but I think a french drain + soakways + improving slope will fix most flood issues.
Land has gov water, electric and all mobile internet. No roads being built here as it's a dead end to the mountains. 4g Have.
Soil is very good, land has 2 mango trees already giving fruit, custard apple, lime, banana, coconut, sake and a few others.