Nearly two decades and $108 million worth of “disturbing” data manipulation with “serious and far ranging” effects forced a federal lab to close, a congressman revealed Thursday.

The inorganic section of the U.S. Geological Survey’s (USGS) Energy Geochemistry Laboratory in Lakewood, Colo. manipulated data on a variety of topics – including many related to the environment – from 1996 to 2014. The manipulation was caught in 2008, but continued another six years.