The Environmental Protection Agency program that cleans up contaminated sites across the country must be overhauled when the law is reauthorized, an agency official told Congress Thursday.

Mathy Stanislaus, assistant administrator for the EPA’s Office of Solid Waste and Emergency Response, told Congress the agency doesn’t merely want more money to throw at the Brownfields Program. Instead, he said, lawmakers need to enable the EPA to take on more projects in more communities.