hmmmmm. Good one. I am going to have to research this one but I do not think this one is covered under USTA rules. If officials were running a tournament there, they would inspect the site before beginning play and I can't imagine they would put any kid in danger by running them out onto dangerous courts. But since this coach already knows what the conditions are like, before playing there again, I would at a minimum call the league director/commissioner/whoever and voice my concerns and maybe they would force a change in venue.