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Washington state's Department of Ecology is cleaning up schoolyards in the central part of the state where it found unsafe levels of lead and arsenic. These hazardous elements are likely remnants from pesticides sprayed when the area was farmland. This map shows schools that have had their contaminated soil removed and replaced (green markers), and those that have not yet been cleaned up (brown markers) Created November 12, 2010 at 11:55 PM