HICKSVILLE - A contaminated site in Nassau County is close to being cleaned up, environmental officials say, and a public meeting was held tonight to fill residents in on the final cleanup process.The property lies southeast of New South Road and Commerce Place in Hicksville and is one of a handful of high-priority Superfund sites across Long Island.The 14-acre industrial site is highly contaminated with excessive levels of PCBs and other chemicals that can cause cancer, according to the Department of Environmental Conservation (DEC). It was contaminated by previous manufacturing plants.So far, the DEC has removed more than 14,000 tons of soil, and plans to remove more before capping and monitoring the site. However, local environmental groups say the DEC hasn't gone far enough in its cleanup. At tonight's public meeting, residents urged environmental officials to "do right" by properly addressing the problems.