Groundwork USA Trust Act of 2010 - Establishes the Groundwork USA Trust Program.
Authorizes the Secretary of the Interior, in consultation with the Groundwork USA national office, to award grants to eligible nonprofit organizations to: (1) provide training, research, and technical assistance to individuals and organizations to facilitate the inventory of brownfield sites, site assessments, remediation of brownfield sites, community involvement, or site preparation; (2) reclaim vacant and derelict lands for conservation, recreation, and economic development; (3) clean up and care for neglected areas; (4) return brownfields to economically productive use; (5) integrate environmental education, food security, health and fitness, resource management, and job training; (6) encourage businesses, local governments, nonprofits, and communities to work together for sustainable environmental care and enhancement; (7) support businesses, local governments, nonprofits, and communities in efforts to improve their local environment; (8) acquire real property and buildings to rehabilitate and improve upon for the local community and perform maintenance on such property and buildings; and (9) develop programs that encourage regional and national partnering with other environmental organizations.
Limits the maximum amount for a grant award under the program to $400,000 for any fiscal year.
Requires annual reporting by grant recipients.