California prison record system cost doubles to $386 million

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  • In this photo taken Friday, July 22, 2016, California Department of Corrections and Rehabilitation employee Shellee Haun retrieves inmates medical records at a facility in Sacramento, Calif. A massive project to computerize the prison system's antiquated paper-based medical record-keeping for the nearly 130,000 inmates has doubled in cost from the original estimates to nearly $400 million. (AP Photo/Rich Pedroncelli)

    In this photo taken Friday, July 22, 2016, California Department of Corrections and Rehabilitation employee Shellee Haun retrieves inmates medical records at a facility in Sacramento, Calif. A massive project to computerize the prison system's ... antiquated paper-based medical record-keeping for the nearly 130,000 inmates has doubled in cost from the original estimates to nearly $400 million. (AP Photo/Rich Pedroncelli) (The Associated Press)

  • In this photo taken Friday, Sept. 23, 2016, J. Clark Kelso, the federal court appointed receiver overseeing the state prison medical system, poses in his office in Elk Grove, Calif. Since his appointment, Kelso has under taken a massive project to computerize the prison system's antiquated paper-based medical record-keeping for the nearly 130,000 inmates, but has seen double in cost from the original estimates to nearly $400 million. (AP Photo/Rich Pedroncelli)

    In this photo taken Friday, Sept. 23, 2016, J. Clark Kelso, the federal court appointed receiver overseeing the state prison medical system, poses in his office in Elk Grove, Calif. Since his appointment, Kelso has under taken a massive project to ... computerize the prison system's antiquated paper-based medical record-keeping for the nearly 130,000 inmates, but has seen double in cost from the original estimates to nearly $400 million. (AP Photo/Rich Pedroncelli) (The Associated Press)

  • In this photo taken Wednesday, July 13, 2016, David Toman, center, a supervisory registered nurse, trains nurse Rivka Rosen on using the California Department of Corrections and Rehabilitation's new electronic health records system, as nursing instructor Chuck Tache, looks on at Folsom State Prison in Folsom, Calif. A massive project to computerize the prison system's antiquated paper-based medical record-keeping for the nearly 130,000 inmates has doubled in cost from the original estimates to nearly $400 million. (AP Photo/Rich Pedroncelli)

    In this photo taken Wednesday, July 13, 2016, David Toman, center, a supervisory registered nurse, trains nurse Rivka Rosen on using the California Department of Corrections and Rehabilitation's new electronic health records system, as nursing ... instructor Chuck Tache, looks on at Folsom State Prison in Folsom, Calif. A massive project to computerize the prison system's antiquated paper-based medical record-keeping for the nearly 130,000 inmates has doubled in cost from the original estimates to nearly $400 million. (AP Photo/Rich Pedroncelli) (The Associated Press)

A massive project to modernize medical record-keeping for California prison inmates has more than doubled in cost from original estimates to nearly $400 million in just three years.

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The federal court-appointed receiver who controls California's inmate health care system approved the project in 2013 to replace the state's antiquated paper-based records with an electronic system that can track the medical and mental health care of nearly 130,000 inmates.

But it now won't be installed at all 35 prisons until the end of 2017. Inmate advocates may seek to push it back even longer at some troubled prisons.

An Associated Press review shows the cost ballooned in part because the first estimate left out several basic needs.

The receiver says the biggest hurdle was a virtually unusable pharmaceutical records system.