The high levels found in 13 different states should serve as a wakeup call to all of us. The lead is the fallout from lead-based paint, exhaust fuel from leaded gasoline in the 1970’s.
If you suspect your lawn being contaminated, talk to a representative at Midwest Laboratories and learn how collect a sample and send it in for analysis.
Check out the XRF Analyzer in this video. Midwest Laboratories owns one of these devices.