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4.4 Options For a Complex Site = A generator that owns a complex site with multiple operations that are managed as inde- '0 pendent businesses may choose to prepare a separate Plan, Performance Report, and SPR 9-* for each operation that is independently managed. An example of a complex site is a site where hazardous wastes generated at each operation are managed by a separate environ- .p mental coordinator or production unit. A generator that chooses this option may avoid the O burden of coordinating source reduction evaluation and planning activities between busi- -0 nesses or operations that would otherwise act independently. 0=0L A Source Reduction Success - The Martin Luther King Jr./Charles R. Drew Medical Center The Martin Luther King Jr./Charles R. Drew Medical Center (KDMC) in Los Angeles is a direct re- sult of the historic Watts Riots of 1965. Following the riots,former Governor Pat Brown appointed John A. McCone to head a commission to study the causes of the riots. The McCone Commission Report identified the absence of accessible quality health care as a major contributor to the civil disturbance. KDMC is a short-term general acute care community teaching facility,a Level I Trauma Center, and a Level III Newborn Intensive Care Unit. The facility has 14 approved clinical residency train- ing programs,and operates a Paramedic Base Station and emergency heliport. The following are a few of the source reduction methods implemented by the hospital: • In the past, maintenance workers manually washed paint guns in the paint shop with thinner. Manual washing released thinner into the surrounding work space and generated thinner waste. However,a Herkules Paint Gun Washer and Recycler that uses compressed air was installed in the paint shop in mid-1994. Practically all the usedthinner is now captured as liquid waste. The washer effectively cleans the paint gun and reuses the thinner for additional washes. Thinner waste was reduced by 28%,or 500 pounds per year. The capital cost was $975 and operation and maintenance costs are$100 a year. • Laboratory technicians manually dipped slides with blood smear into the stains.The manual process takes 12 to 15 minutes. A Wescor Aerospray Hematology Slide Stainer was installed in January 1995. The automatic slide stainer sprays the slides with the stains, minimizing the generation of alcohol waste. The machine can replace the manual staining process for most slides with the exception of bone marrow slides. The machine takes less than 10 minutes. The slide stainer costs $6000 and has annual recurring costs of$600.Annual savings in chemicals and waste disposal are$930 and $50, respectively. The use of the automatic slide stainer is estimated to save a minimum of 1 person-hour per day. Since the Hematology Laboratory operates 365 days per year,the automatic stainer saves approximately 365 person-hours per year or$9125 per year. • Employees used or serviced mercury sphygmomanometers daily,and a number of mercury spills resulted from breakages. Replacement of mercury sphygmomanometers in the patient care areas with TycosR Aneroid Sphygmomanometers was completed in 1994. The aneroid sphygmomanometers are accurate and do not contain mercury. The estimated hazardous waste source reduction was 75%,or 150 pounds per year. 27