Back in 2008, a rash of falsified concrete testing reports on major projects in New York including the Yankee Stadium and the Second Avenue subway station had construction executives scrambling to find replacements. American Standard Testing and Consulting Laboratories were selected as the replacement company. However, the owner and five other employees have currently been arraigned on charges stemming from exactly the same things they were hired to rectify.
Apparently, none of over 3,000 test reports seized have contained legitimate data. Some of the projects tested include; the Lincoln Tunnel, the Jacob K. Javits Convention Center, the Port Authority Bus Terminal, the Metropolitan Transportation Authority’s huge new Fulton Transit Center and East Side Access project, the new air-traffic control tower at La Guardia Airport, a building at Memorial Sloan-Kettering Cancer Center, Weill Medical College, Columbia University and the Intrepid Sea, Air and Space Museum.
City officials and prosecutors have emphasized that none of the projects pose any potential hazard, due to the general high quality of concrete mix in New York. However, the Department of Buildings has overseen numerous retesting at the sites.
For more details, see the NY Times.