An aide to Rita M. Lavelle said yesterday that he -- not Lavelle--wrote a widely publicized memo that was cited as instrumental in her firing as assistant administrator of the Environmental Protection Agency in charge of hazardous waste cleanup.

Gene Ingold, who was a special assistant to Lavelle when both of them were fired on Feb. 7, said he wanted to "go public" and reveal that he was the author of a memo found in Lavelle's computer calling the business community "the primary constituents of this administration."

A portion of the memo was recently mailed to the Justice Department along with a letter from EPA Administrator Anne M. Gorsuch. They are part of the material sent to the Justice Department as evidence to be used in an investigation of Lavelle's relationships with industries that were regulated by her hazardous waste cleanup program.

The memo refers to a meeting of Lavelle and officials of Outboard Marine Corp. at a time that the firm was a defendant in an EPA lawsuit over the discharge of poisonous wastes in the Waukegan, Ill., harbor.

Ingold said he wrote the memo to help Lavelle get her thoughts together for a conversation with Gorsuch about Lavelle's problems with the EPA's general counsel, Robert Perry.

Asked why he had not come forward until now, Ingold said Lavelle told him at the time that she "wanted to take the rap for me because she was afraid I'd be vulnerable if the administrator Gorsuch learned I'd written it. It's kind of ironic now.

"Rita's getting blamed for so many things, I just thought she ought to get this one off her back," Ingold said. 'It's Kind of Ironic Now' Ex-Assistant to Lavelle Takes Credit For Memo on Business Constituency

An aide to Rita M. Lavelle said yesterday that he--not Lavelle--wrote a widely publicized memo that was cited as instrumental in her firing as assistant administrator of the Environmental Protection Agency in charge of hazardous waste cleanup.

Gene Ingold, who was a special assistant to Lavelle when both of them were fired on Feb. 7, said he wanted to "go public" and reveal that he was the author of a memo found in Lavelle's computer calling the business community "the primary constituents of this administration."

A portion of the memo was recently mailed to the Justice Department along with a letter from EPA Administrator Anne M. Gorsuch. They are part of the material sent to the Justice Department as evidence to be used in an investigation of Lavelle's relationships with industries that were regulated by her hazardous waste cleanup program.

The memo refers to a meeting of Lavelle and officials of Outboard Marine Corp. at a time that the firm was a defendant in an EPA lawsuit over the discharge of poisonous wastes in the Waukegan, Ill., harbor.

Ingold said he wrote the memo to help Lavelle get her thoughts together for a conversation with Gorsuch about Lavelle's problems with the EPA's general counsel, Robert Perry.

Asked why he had not come forward until now, Ingold said Lavelle told him at the time that she "wanted to take the rap for me because she was afraid I'd be vulnerable if the administrator Gorsuch learned I'd written it. It's kind of ironic now.

"Rita's getting blamed for so many things, I just thought she ought to get this one off her back," Ingold said.