Cured-in-Place Pipe (CIPP) was introduced in 1971 as an alternative to digging up and replacing sewers, and it was introduced to North America in 1976. Now, approaching 50 years since the introduction of CIPP, hundreds of millions of feet of rehabilitated pipe have been installed around the world. CIPP is proven to provide an economical and environmentally-friendly alternative to open-cut replacement, minimizing impact to traffic, businesses, the environment and neighborhoods while helping to prevent sanitary sewer overflows (SSOs) and groundwater contamination by leaking sewage.
A report was recently published raising questions about the safety of steam-cured CIPP installations. The report by Dr. Andrew J. Whelton, assistant professor of engineering at Purdue University, is titled “Worksite Chemical Air Emissions and Worker Exposure during Sanitary Sewer and Stormwater Pipe Rehabilitation Using Cured-in-Place-Pipe (CIPP)” and was published July 26, 2017, in the Environmental Science & Technology Letters, a publication of the American Chemical Society (ACS).