From the NY Times:
Nearly a year after New York City said it had a plan to retest the concrete in an untold number of buildings because a testing company was suspected of failing to perform required tests or falsifying results on scores of projects, only a handful of buildings have been retested.
The City Department of Buildings first learned of the allegations against the company, Testwell Laboratories, in June 2008, and two months later, an official said that the agency had developed a plan to begin the required retesting. In October 2008, when several company officials and employees were charged in the case — accusations that involved some of the city’s highest-profile construction projects — the Buildings Department received a formal list of the affected buildings.
But the agency still has not re-evaluated the strength of the concrete in almost all of the 60 buildings that must be tested. The delay, according to the Buildings Department spokesman, Tony Sclafani, stems from the nature and complexity of the task and the number and range of parties involved.