you know, we don't take thirty days typically what we've been doing is we've been meeting with developerswelwe want to know what their concept is and we want to explain to them what the requirements are of them in the ordinance. we've been doing this since 1996 and then it wasn't clear then and you're correct for the leaguer projects there's a better understanding. and in this 26 or 27 years the department of health has become more efficient then we were back in the day. does this address all the questions? >> in the thirty days are you allowed to continue work and that means moving more dirt around the site? and 50 cub it yards is like a blow up so it doesn't take long to get to 50. i'm at a job i determine i have to move more dirt than having yards can i continue my job? >> the developer through their consultant will estimate where the area of contamination is where it needs to be removed. so i don't know if - i'm sorry the disturbance of the 50 cub itself yards is on the ground not in the truck >> you asked about the permit i don't know what the permit condition is. so there has been time