Hudson Square neighborhood groups who oppose the Department of Sanitation’s Proposed Garage On Spring Street, at West Street, filed a lawsuit with the State Supreme Court to block the $500 million project. The Sanitation Department and Department of City Planning are defendants, as well as the Hudson River Park Trust. The suit seeks to prevent the transfer of the property from the UPS to the city, and reverse an agreement that requires the city to relocate all of its sanitation facilities to Spring Street by 2013. The neighborhood groups — which include the Tribeca Community Association, Canal West Coalition and Canal Park Conservancy, as well as property owners — say other sites for the garage have not been adequately considered. Meanwhile, as The Real Deal reported last week, Chinatown and Lower East Side groups who claim the recent East Village and Lower East Side rezoning is racist are suing the Department of City Planning, saying the department’s environmental impact statement “failed to address the racial impact on low-income communities of color.” The lawsuit is trying to toss out the statement and require a new one to include the issue.