CIPP Emission Study Webinar – December 17th

November 21, 2019 by NASTT Staff


Join NASSCO in an industry-wide webinar as the Trenchless Technology Center at Louisiana Tech (TTC) presents their findings on the Cured-in-Place Pipe (CIPP) Emissions Testing Study – Phase II.

In response to published reports on the safety of styrene emissions used in cured-in-place pipe (CIPP), NASSCO, Inc. proactively supported research in its quest to ensure workers and the public are safe.
Phase 1 was a four-month study which focused on the review of published literature pertaining to chemical emissions during CIPP installations using styrene-based resins. The study, completed on April 6, 2018 by researchers at the University of Texas at Arlington (UTA)’s Center for Underground Infrastructure Research and Education (CUIRE), and the Institute for Underground Infrastructure (IKT) in Germany, found that existing studies do not adequately capture worker exposures or levels in the surrounding areas to which workers or citizens may be exposed. The team further determined that spatial variation of concentrations, and variations in concentrations with different meteorological conditions, are not well determined.

Phase 2 of a larger, in-field study conducted by the Trenchless Technology Center (TTC) at Louisiana Tech, recently concluded and findings will be shared via webinar on December 17, 2019. The year-long study included measurement of styrene and other organic compounds at multiple CIPP installation sites across the country, representing different pipe diameters (8”, 12”, and larger), and lengths, in order to capture variation in emissions. Measurements were conducted before, during, and after curing at the termination manhole, as well as various locations in the surrounding outside area and inside nearby buildings. Worker exposure was also measured via personal exposure monitors. Finally, dispersion modeling was conducted to estimate compound concentrations at different locations for a wide variety of meteorological conditions. Measured and modeled concentrations were compared to appropriate health-based action levels to determine if any potential health risks exist for workers or citizens in the surrounding communities.

The webinar is on December 17, 2019 at 2:00 p.m. Eastern and will cover TTC’s findings and recommendations. Registration is open to all. Click here to register for the webinar.

The Trenchless Technology Center (TTC) at Louisiana Tech University is a cooperative research center for academia, government, and industry. The Center’s mission is to advance trenchless technology by serving as an independent source of knowledge, research, and education in the field. Trenchless technology includes a large family of methods used for installing and rehabilitating underground utility systems with minimal surface disruption and destruction resulting from excavation. The TTC utilizes a three-pronged approach to accomplish its mission: research & development, education, and technology transfer.

Click here to register for the webinar.


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