The city of Savannah has a lot of work to do when it comes to ensuring a fair share of government contracts are going to businesses owned by minorities and women, according to the results of a disparity study presented to the City Council on Tuesday. The study by Atlanta-based Griffin & Strong found that such businesses were being under-used as prime contractors and subcontractors in most work categories between 2010 and 2015. About 93 percent of the almost $337 million in prime contractor payments went to non-minority and women-owned businesses (MWBEs), with Hispanic American-owned business getting 3 percent, women-owned business getting 2 percent, African- American-owned businesses getting 1 percent and Asian- or Pacific Islander-owned businesses rounding out the rest. The findings were based on the number of businesses available to do the jobs and not on population, said Rodney Strong, with Griffin & Strong. Such studies are required to be conducted on a regular basis — typically about every five years — for governments to implement programs such as Savannah’s Minority and Women-Owned Business Enterprise Program, which includes participation goals for projects, Strong said.