Charles Margulis, a spokesman for the watchdog agency, says the lead content in turf from sports fields, indoor/outdoor carpeting and other products was compared against the standard for lead in paint.
The agency says a subsequent test showed lead could be wiped off turf with a cloth or a child's hand.
The latest tests show potential exposure from new products.
A message left with the Synthetic Turf Council, an industry group, was not immediately returned.
The concern over possible lead exposure from turf was first raised by New Jersey health officials who found excessive levels in synthetic sports fields.
