Galveston County Daily News, Feb. 10, 2008 Galveston ISD has too many African-American students in its special education program and the district is looking at lead poisoning as a possible explanation. Galveston's Lead Task Force has suggested all island children be screened for lead at 1 and 2 years of age but UTMB's Wayne Snodgrass, a member of the National Committee on Lead Poisoning and Prevention, recommends a more aggressive approach.