For the third time, the state Department of Environmental Protection rejected the Elcon Recycling Services’ application for a hazardous waste treatment plant in Falls Township.

The controversial proposal calls for a plant to treat between 150,000 and 210,000 tons of chemical and pharmaceutical waste each year in a plant proposed for a site in the Keystone Industrial Port Complex, near the Delaware River.

DEP’s website lists three reasons why the application was rejected: Elcon is not the sole owner of record of the land, as stated; did not offer background information regarding owners, and did not include written consent of the landowner for entry to the property.

Environmental organizations opposed the plant on the basis of potentially toxic emissions into the air and possible drinking water contamination. In response to that concern, Elcon said the plant would use advanced technology to limit toxic releases from its proposed plant.

Elcon may re-apply with a complete application and the DEP would then begin a 10-month review of the plant’s proposed operation.