[sammyg2]

Find out of they are subterranean or dry wood termites. Subterranean termites need moisture and have mud tunnels to the moist ground. Since it was down low and there was water evidence, that's probably what they are. If that's what you have then you will have to have the ground poisoned around the infestation. If they are dry wood termites hen you will have to have the wood treated.
Where I live termites are a fact of life. Everyone has them, you just deal with it and try and keep them under control.