2019 SAFETY AWARDS


If workers or the public were to


be exposed to elevated levels of NOA from the site, a potential for severe health issues including lung cancer, mesothelioma and asbestosis may occur if the project was not conducted properly. To prevent adverse exposures, DFSJV and the SFPUC developed and implemented an innovative plan from the very outset to mitigate that risk on this project.


Industry Leading NOA Program


Working in strong partnership


with the SFPUC and other key team members, the construction team devised a comprehensive and forward- thinking approach to mitigate the hazards according to Bradley Erskine, NOA compliance manager for the construction management team. “Te owner of the Calaveras Dam, SFPUC, designed an NOA program that was the most complex and techni- cally elevated of any construction project in the world,” Erskine said.


www.AGC-CA.org


“Te technical aspects required a high level of scientific expertise, and the scale of the dust control and monitoring program was above any ever attempted.” Te team rose to every challenge


they faced, according to Erskine. “Numerous unforeseen technical and logistical challenges appeared throughout the project, and due to the technical expertise of the DFSJV NOA Team and the joint venture’s high standards and expectations, each were identified, analyzed and solved without impact to budget or schedule,” he said. “In fact, the DFSJV’s approach on


the CDRP project and lessons learned are currently being adopted by Cal/ OSHA within a revision of its regula- tions for worker protection on NOA sites,” Erskine added. “Not only did the DFSJV complete this challenging NOA worker protection program successfully, it made a major contri- bution that will be of value to other owners, contractors and regulators for


years to come.” Te team developed a monitoring


solution that virtually eliminated additional construction costs without any additional exposure risk to workers or the public. DFSJV staff included a certified industrial hygienist with decades of NOA and exposure assessment experience to oversee all worker protection issues, a California professional geologist to identify areas potentially having NOA containing materials, and inspectors to oversee construction activities in NOA-containing material and perform personal air monitoring. Te construction management


staff included an NOA compliance manager responsible for the overall administration of the program, monitors to collect and log air samples from perimeter and ambient stations daily and inspectors to ensure contract compliance and to document the construction operations. In total, nearly 116,000 man-hours were expended


Continued on page 12 Associated General Contractors of California 11


Photo courtesy of Dragados/Flatiron/Sukut Joint Venture


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