Cured-in-place pipe (CIPP) process is a pipe rehabilitation method, which involves a liquid thermoset resin saturated material that is inserted into the existing pipeline by hydrostatic or air inversion, or by mechanically pulling-in and inflating. The liner material is cured-in-place using hot water, steam, or light cured using UV light resulting in the CIPP product. In response to the growing usage of CIPP installations and recent industry reports, National Association of Sewer Service Companies (NASSCO) issued a request for proposals to facilitate a formal review of potential health impacts associated with CIPP. Previous studies have focused on the concentration of styrene present in the air of residential homes tied to storm water culverts and sanitary sewers during pipeline renewal. The objective of this paper is to summarize literature review results related to potential release of organic compounds during steam-cured CIPP pipeline renewal causing air emissions and water quality concerns. It was found that existing studies do not adequately capture worker exposures or levels in the surrounding areas to which workers or the public may be exposed. In addition, the reviewed papers had questionable methodologies, and therefore, the results presented are not conclusive. Therefore, it is recommended that additional sampling, data evaluation, and analysis be further carried out to have a comprehensive study of steam-cured CIPP emissions.
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