HART CEO Murthy testified to the Senate that the first full year of steel wheels O&M will be $126 million ($10.5 million monthly).  The Honolulu Transit Task Force plan states that at-grade O&M will be $54 million yearly ($4.5 million monthly).  I submitted maglev O&M costs (based on a mainland study) of $51.66 million yearly ($4.305 million monthly).  Hope this helps.