Last night temperatures dipped to 10 below zero with high winds driving wind chill down below minus 30. I stopped by the River House this morning to make sure we did not have any downed trees or other damage. Fortunately, there was none but I will have to wait until temps rise above 32 to determine if our temporary water service survived. The Sudbury River was frozen solid except in front of our house where a natural spring enters the river from below. Future grandchildren, should we ever have any, will have to be warned about thin ice in this part of the river. I spent the afternoon with Kyle using a very heavy concrete grinder that we rented. It was necessary to flatten the floor in his basement after the subcontractors he hired to do the flooring installation made a totally unacceptable attempt to level the concrete. It will not be perfect but we were able to address the most egregious problems.