JULY 1989

At Clean Harbors Inc., a $100-million Quincy, Mass., Inc. 100 company that analyzes, cleans up, and transports hazardous waste, guidelines for purchasing office supplies include:

* Paper, not Styrofoam, drinking cups

* Biodegradable hand soap for bathrooms

* Recycled paper for stationery

In addition, Clean Harbors forgoes putting salt on the company parking lot after a snowstorm, using only a plow instead.

"The costs associated with these guidelines are negligible in real dollars," says media-relations manager Karen Clancy, "and in many instances actually save money. But the long-term environmental savings are tremendous."