Deloitte has denied the county's claims.

Marin County determined that maintaining the system at "status quo" would cost up US$34.7 million over 10 years. Fixing it and "supporting continual improvement" by bringing on more workers would cost $49.8 million. Addressing the problems and keeping the system in place would run up a $34.1 million tab.

In contrast, starting over with something new would cost just $26.2 million over the same 10-year period, according to the county.

An SAP spokesman stressed at the time that the company's software is not to blame in Marin County, and is "installed and functioning perfectly in tens of thousands of public sector agencies, including dozens in California."