Understanding Environmental Implications Of CIPP Rehab Technology

By Ed Kampbell, P.E. | April 2009 Vol. 64 No. 4

VTRC 08 R16’s preliminary findings issued in mid-2007 were that the VA DOT should suspend the use of styrene based CIPP and undertake additional study to understand CIPP; that the DOT should evaluate their contract documents to ensure that CIPP contractors are specifically required to prevent the escape or leaching of process residuals (capturing and properly disposing of cure water, cure steam condensate, and escaped resin); and if styrene based CIPP is re instated that the DOT should ensure that it has proper oversight on hand during the CIPP’s installation. As a result of these findings and the researchers’ recommendations, the following notable changes were issued by the VA DOT in April of 2008: