Kane's office began investigating alleged illegal activity at PennDOT District 6, which includes Bucks, Chester, Delaware, Montgomery and Philadelphia counties, in March 2013. The charges, recommended by a statewide investigating grand jury, come three months after another PennDOT inspector, Joseph DeSimone of South Philadelphia, was arrested for perjury for allegedly lying to the grand jury.
"This is a clear case of illegal activity driven by greed," Kane said. "The grand jury determined that this contractor, already being paid millions of dollars, stole millions more from Pennsylvania taxpayers - and found a state inspector whom he could bribe to help him do so. As a result, work was not done and the safety of drivers in five southeastern Pennsylvania counties was put at risk."
Nguyen's businesses, V-Tech Services Inc. and Utility Line Clearance Inc., received $26 million since 2009 in contracts for PennDOT maintenance, including herbicide spraying, litter cleanup, mowing, landscaping, graffiti removal and tree removal along state roads and bridges, Kane said.
Investigators determined that Nguyen allegedly stole $660,000 by double-billing on herbicide contracts; $1.5 million for herbicide chemicals never bought or sprayed; and $1.1 million for Philadelphia graffiti-removal and street-sweeping that was not done. He also is accused of inflating work hours and the number of people working at his job sites, according to the grand-jury presentment.
Slamon, of Shillington in Berks County, was most recently a PennDOT consultant inspector, for Czop Specter Inc. in Norristown. He was seen taking $5,000 in cash from Nguyen, according to the presentment.
Further arrests are expected, Kane said.
Nguyen and Slamon are charged with theft, tampering with public records, corrupt organizations, bribery and criminal conspiracy. Nguyen faces up to 150 years in jail and $250,000 in fines; Slamon faces up to 95 years in jail and $150,000 in fines.
Tipsters who know of potential corruption in PennDOT District 6 are encouraged to call the Attorney General's office in Norristown at 610-631-6208.
On Twitter: @DanaDiFilippo