The accumulation of Pb shot deposited on land at clay target shooting sites has been identified as a source of Pb contamination. A clay target shooting site was surveyed to assess the degree of Pb contamination. Soil samples were collected in the shot-fall area along to perpendicular to the line of traps at the site. Pb concentration of each soils were analyzed by modified method for sequential extraction designed for sediment analysis by Atomic Absorption Spectrophotometry (AAS), The Pb partitioning tests from those soil samples show that the content of exchangeable are 92.4% for falling area and 82.9% for trap area, also the content of bound to other materials is 7.6% for falling area and 17.1% for trap area, relatively. To remediate the contaminated site, acid flushing process could be applicable and the removal efficiency of Pb soil depends on its particle size. From the lab scale acid flushing test, Pb removal efficiencies were achieved up to 100% (> 2.8 mm), 88 ~ 91% (0.075 ~ 2.8 mm) and 69 ~ 78% (< 0.075 mm). As a result of this study, acid flushing should be considered an effective remediation process and collaborative particle partitioning could be a key factor to get an optimum flushing efficiency.