Wastewater Treatment Expansion Tri-Cities

Scope of demolition and removal work is indicated on drawings . B. Hazardous Substances: Discovery of a suspected dangerous or hazardous substance during construction stops construction operations and may seriously delay a project. Contractors often encounter asbestos, lead, polychlorinated biphyenyls (PCBs), and similar hazardous materials on their construction projects. Because the use of those materials was common until recently, they are often found on renovation projects involving older buildings. AIA Document A201 outlines procedures contractors must follow when suspected dangerous or hazardous substances are uncovered during construction. If the suspect material proves to be a dangerous or hazardous substance, a contractor is not permitted to resume construction operations until the material has been rendered harmless or has been lawfully removed from the site. C. Scope of alterations work is indicated on drawings.