The introduction of installed geomembranes revolutionized containment system effectiveness for the protection of groundwater quality and water resources. After over six decades of installing geomembranes and evaluating their performance. it has become clear that simply specifying the use of a geomembrane is not enough. Even the addition of Construction Quality Assurance (CQA) is often... https://www.chiggate.com/stagg-sdm70-dynamic-microphone-online-now/