Mercer County 911 Administrator Monte Diegel has announced his retirement. His last day will be June 30. County dispatcher Rachel Williams will replace Diegel.
    
    CELINA- Mercer County 911 Administrator Monte Diegel has seen a lot of change in his  29 years with the sheriff's office. 
Diegel, 64, has announced his retirement. His last day will be June 30. County dispatcher Rachel Williams will replace Diegel. [
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