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Field sampling and laboratory studies were conducted to investigate lead release from new end-use components used in drinking water fountains in Seattle (Washington) Public Schools. Analysis of sequential small-volume samples collected at 22 sources found high lead concentrations in water that was left standing overnight. Results showed significant lead release at or near bubbler heads and at another location upstream of the bubbler head in the end-use plumbing. Laboratory testing of new end-use components were used to estimate the relative contribution of each component to the total lead release in a first-draw sample. Results of the field sampling and laboratory testing programs helped develop mitigation strategies for reducing overall exposure of Seattle's students and staff to lead in drinking water. Includes 21 references, tables, figures.