This file photo shows Trump International Hotel and Tower with the Chicago River in the foreground.
The Illinois attorney general accuses Trump International Hotel & Tower in Chicago of significantly lowballing how many millions of gallons of Chicago River water it circulates each day through its heating and cooling system.
  • Trump Tower uses millions of gallons of Chicago River water a day to heat and cool its 98 floors.
  • Since its 2009 opening, impact data has been missing or based on 'gobbledygook' math, officials say.
  • Trump's engineers now say they're "not yet able, as of today, to confirm the accuracy" of their data.

Since opening in 2009, Trump International Hotel & Tower, Donald Trump's massive glass skyscraper in Chicago, has relied on the city's river to heat and cool its 98 floors.