The driller came out last week and drilled 3 200' holes for the loop system. The first went through solid rock all the way down. The other two hit water @ 140' which is about the static level for our well system. No problems with our drinking water, thank God. They are going to schedule the trenching to the house in the next week or so and once everything is inside, the main contractor will come in and install the heat pump. The driller mixed Bentonite in his fill but there is still water in the two holes. Should I be concerned about this or not? Will update as the project progresses. Thanks again to all for the help and guidance in selecting the proper system and what to look for.