Hey All,
I am the original poster and will update.
Last November we cleared the site to build a house so we took down apple trees and other trees, then shaped the lot for the house, driveway, and surrounding areas. That resulted in 5 brush piles about the size of those shown in posts 99 and 100. The piles were adjacent to the orchard itself, and about 5 - 10 feet apart. I was concerned about the proximity, thinking it would spread and keep going. Burying would not work because of settling, and hauling out was expensive. So, I got a permit on a rainy day, and lit one pile about 0830. I used some rolled up newspaper, fire starter sticks, diesel fuel, and a fire lighter. Not an issue, lit right up and burned fine. When it was sufficiently burned down, I went to subsequent piles one by one. I did have a charged garden hose and had the Kubota on site to turn as necessary.
They smouldered for a few days because the apple trees were up to 8 inch trunks. But, I tended the piles over the few days and there was not a problem. Then I ordered some topsoil. The delivery driver got nervous and called it in, then I had my new friends from the Fire Dept on site pretty quick. I was getting out of the shower because I was going to the doctor. My wife came into the bathroom telling me how much trouble we were in---gonna get fined, gonna get arrested, etc. she is a wonderful wife but does live within the law at all times.
So, I went out to see the operations chief. He was very cool. No issues at all with me because I obviously tended the piles, was no danger of spread. He said "somebody got nervous". I gave him the keys to the Kubota, said help yourself but I am going to the doctor. I did give them a donation of $200 and thanked them for their work and their service. The piles did burn down but I did haul the tree trunks to an area out of the way to rot.
But, I also had 7 more piles of smaller brush that were stacked by the dozer. I used the Kubota to consolidate down to 3 piles. I got a permit on a rainy day and burnt them.
Final result is a large 1+ acre area that is now ready to plow/till for the pumpkins and garden next year. It was a good idea to burn, but was a little nervous E about the size and proximity of the piles. I like this thread because it gives great ideas and I am thankful for that. Maine had a massive fire in this area in 1947 and they do take brush fires seriously.
I am behind on pictures but over this winter I will get them posted.