My mother is being harassed by a fellow coach at work and I am scared of the emotional consequences its having on my mom.

My mother is being emotionally harassed at work. She is a swim coach and has been one for many years. She loves her job and all of her swimmers. Recently, one of her volunteer coaches has turned on her and is gunning for her job even though my mother has turned the crumbling program around and won a championship every single year. This volunteer coach has been reporting my mother to the school board repeatedly for stupid quirks like playing "inappropriate music" and other pointless things to try to get her fired. Now she is getting verbal and pulled my mother aside and told her that she would never leave her alone until she has her job. My mother is in hysterics and i am scared that if this woman doesnt back off that my mother is going to crash her car from crying or hurt herself. Please tell me this can warrant at least a Civil Harassment Order so my mom can go on coaching and doing what she loves. I love my mom :( please help.