XR Geomembranes by Seaman Corporation’s potable water geomembranes are used for the containment of potable water. This high-strength, flexible geomembrane provides superior puncture, tear and UV resistance. It is the only geomembrane with NSF 61 approval for potable water contact. The versatility of XR-PW geomembranes allows it to be used for many unique applications, including finished water baffles, raw water ponds and floating covers. XR-5 PW is specifically engineered for floating cover applications.