We’re learining more about the state Department of Agriculture’s investigation into a pesticide exposure incident in July involving orchard workers near Mattawa. The state determined overspray of two pesticides on a potato crop at Road 24 SW and Road K SW drifted westbound into an apple orchard where more than 50 workers were on the job. Investigators interviewed nearly all the workers who were likely exposed and at least 40 of them say they experienced symptoms consistent with exposure. 3 were hospitalized.