waste minimization assessment centers (wmacs) were established at selected universities, and procedures were adapted from the epa waste minimization opportunity assessment manual (epa/625/7-88/003, july 1988). the wmac team at the university of tennessee performed an assessment at a plant manufacturing printed circuit boards for television sets--approximately 4.3 million sq ft of finished boards per yr. to make printed circuit boards, the plant begins with making screens as all printing is accomplished using silk-screening techniques. the circuit boards undergo several operations including punching, scrubbing, printing, etching, and soldering. the team's report, detailing findings and recommendations, indicated that the majority of waste was generated in the circuit board production lines but the greatest savings could be obtained by installing a closed-loop cooling water system to reduce (60) excess water usage in the uv-light curing ovens after screen printing and the cooling of the cupric chloride etch tanks