"GREEN" Construction Expecting L.E.E.D. GOLD Certification! 52,000 SF of New Construction including Addition and Vertical Expansion over Active Emergency Room and Medical Facilities. ** See Case Study ** JOHN S. MCMANUS INC. and Mercy Suburban Hospital teamed up to implement a construction waste management program on the consturcion of the new Mercy Suburban Hospital Patient Care Center. The project produced 7,638,401 lbs of waste materials. The recycling program successfully diverted 96.24% (7,351,461 lbs). The recycling of wood, cardboard, metal and rubble alone saved an estimated 16,100 gallons of gasonline or over 900,000,000 btus.