Their website is a problem and the issues change constantly.....here is where to find regulations and camping info.."Scroll down to the bottom of the site and use the search feature for CAMPING RULES and choose CAMPING. To get to the reservation site click on the tent "camping reservation" at the bottom of this page.
The only sites which I see are still available are in the C & D & G areas. The C,D,E,G areas are in a large open grass field. (the campground books up within days of being open). The sites are nominally 20 x 40. Unless my neighbours and I park exactly within our lines we can not open slides and canopy.
Generators. There are no specific rules. I guess that quiet times will apply as will the tolerance of the neighbours.
(This is NOT a quiet camping location. At any time during day or night there may be shouting, bagpipes, drums etc.. . that being said the 'authorities' will attempt to deal with the bad ones.)
dumping...nothing on site. I use Highland Pines (</title> <link rel="shortcut icon" href="http://highlandpines.com/wp-content/uploads/2016/01/main-logo-1.png" type="image/png"> <link rel="apple-touch-icon" type="image/x-icon" href="img/apple-touch-icon-57x57-precomposed.png"> <link rel="apple-touch
) which is about 10 minutes away.
Water...no fill site....I have always (except for the first year when I filled at home) had a serviced site. the service is a central pedistal serving up to 15 sites. once everyone is parked it will be a long way to run a connection to fill. You may want to ask Highland Pines.
I have not been to Boots and Heart music festival but I know Burls Creek. Camping is probably similar.
Not sure how helpfull this is. If you have more questions please post.
Just for info I have been to Fergus annually for about 15 years. We meet up with a group of friends from as far away as Florida, Connetecut, Michigan, and many closer Canadian locations. We rent about 15 to 20 sites and many also stay in hotels.