“SPRINGFIELD — In a possible death blow to what some have called a “zombie” project, state environmental regulators have revoked approval for a proposed 35-megawatt biomass energy plant in East Springfield.

The state Department of Environmental Protection, in a letter to Palmer Renewable Energy Friday, cited delays in starting construction at the 1000 Page Blvd. site, as well as “environmental justice” concerns, as the reason for revoking approval.”