Lead Poisoning !!!! HELP!!!!!!!!!

Hi I was wondering if any of your kids have ever had high Lead levels ! My 17m Old has high lead levels I’m working gvwith the health felt and my son ped hazmat came to my home couldn’t find anything this Monday they came back with a machine like xray type and nothing ! I’m so lost I cry every night I have 4 kids 14 7 6 and 17monthbild and only the baby has haiga Levels ! I have no idea where he’s getting but from he is always with me! I live across from PGE (electricity and gas company service center) I called them and they said that couldn’t be the source since the closest tower with Lead is 800ft from my home ! Water was tested and nothing ! Dr scared me they say my baby won’t be a normal baby because Lead damages their brain and nervous system! He acts normal does everything like a normal 17m Old I mean he doesn’t talk a whole bunch but he understands commands! But they say we won’t know how much damage has been done till he is older ! Ughhh sorry for long post just need help advice how did ur little ones do ?