FEBRUARY/MARCH 2019 VOLUME 37 NUMBER 1 SUBSCRIBE AT GeosyntheticsMagazine.com GMA TECHLINE Your geo questions answered QUARTER-CENTURY GEOMEMBRANE REVITALIZING A CALIFORNIA RESERVOIR Geomembrane lasting power Palos Verdes revisited Geosynthetics A PUBLICATION OF Lake Michigan bluff erosion protection $19 US | $25 CANhttp://www.GeosyntheticsMagazine.com