"At the historic San Quentin State Prison near San Francisco, one out of five guards was paid more than $100,000 last year." according to this report.
Around the entire state of California, one out of every 10 rank and file CO's were making over 100 grand a year. Average base pay is 57,000 a year (far more than we pay our public defenders mind you).
And despite it's dire financial condition, California spent $$277 million last year on guard overtime. Seems like a poor resource allocation decision to me.