Lavelle was born in
Portsmouth,
Virginia, to Dr. Patrick Lavelle and Rita Lavelle. In 1969, Lavelle earned her bachelor's degree in Biology and Mathematics, with a minor in chemistry, from
Holy Names University in
Oakland, California. She continued her graduate work at the
University of California, Berkeley in physiological chemistry and stoichiometry. She earned a master's degree cum laude in business administration from
Pepperdine University in 1980. From 1969 to 1976, she was the
California State Consumer Affairs Department information officer, state director of
consumer education, and publications assistant in the office of then-Governor
Ronald Reagan. She was director of marketing for Intercontinental and Continental Chemical Corporation in Sacramento, California, from 1976 to 1978. Lavelle's responsibilities included development of corporate guidelines to comply with the
Resource Conservation and Recovery Act, a law that her later position at the EPA left her to administer nationwide compliance with by both business and government sectors. Beginning in 1978, Lavelle initiated, directed and managed several programs for
Aerojet-General Corporation subsidiaries; these included programs for divisions which manufactured chemicals and industrial and chemical intermediates, nuclear and chemical waste treatment systems,
liquid rocket engines for the aerospace industry, and high-speed marine propulsion systems for defence applications. When Lavelle joined Aerojet-General Corporation, she became director of communications for one subsidiary, Cordova Chemical Co., until 1979, moving to a similar communications position for the largest subsidiary, Aerojet Liquid Rocket Co., in 1979. In 1981, she was named one of the outstanding women in aerospace by
Aerospace Magazine. == EPA ==