Okay, let’s tackle this. So Laura O’donnell has a degree from The Johns Hopkins University, which is a reputable institution. Her skills in environmental awareness, compliance, engineering, and project management are in demand. Location is Baltimore, Maryland, which is a hub for environmental consulting and engineering firms. According to national averages, environmental engineers and managers can charge around $100–$150 per hour. Considering her education and skills, I’ll estimate around $125 per hour, which is slightly below the average but still competitive in the market.