The City of Northglenn declined to comment but did tell 9NEWS the city and Krieger are working on a severance agreement that will be presented to the city council on June 12.
Krieger declined to comment when reached by phone Friday afternoon.
Utilities Director David Allen is the city's acting city manager.
Allen did not immediately return calls for comment.
The City of Northglenn hired Krieger in October 2006 after a nationwide search. Krieger was selected from 29 applicants.
Krieger stared with an initial base salary of $120,000.
Krieger was the city manager of Ferguson, Missouri for three years before coming to Northglenn.
In 2006, Northglenn's population was estimated to be 33,045.
