The Liberty Industrial Finishing site is located in Oyster Bay, New York. During World War II and the Korean War, industrial operations at the 30-acre site included aircraft parts manufacturing and associated metal finishing processes largely in support of military efforts. After the wars, the site was used for other industrial and warehousing operations. During these operations, wastes were discharged into below-grade sumps, underground leaching chambers and unlined groundwater recharge basins or lagoons. These operations contaminated soil and groundwater with hazardous chemicals. Following immediate actions to protect human health and the environment, the site�s long-term remedy was put in place. Long-term groundwater treatment and vapor monitoring are ongoing.