21. In December 2013, the Pennsylvania Auditor General conducted a performance audit of the District. 22. Texas has been doing performance audits for years and has saved billions of dollars. 23. In December 2009, the Pennsylvania Auditor General conducted a performance audit of the District. 24. The Pennsylvania Auditor General conducted a performance audit of the district in August 2010. 25. In January 2012, the Pennsylvania Auditor General conducted a performance audit of the district. 26. In 2012, the Pennsylvania Auditor General conducted another performance audit . 27. In November 2010, the Pennsylvania Auditor General conducted a performance audit of the District. 28. In January 2010, the Pennsylvania Auditor General conducted a performance audit of the district. 29. In July 2011, the Pennsylvania Auditor General conducted a performance audit of the District. 30. In March 2010, the Pennsylvania Auditor General conducted a performance audit of the district.
