It has been 40 years since Paul Campbell started his Powerscreen dealership in Napa, having officially emigrated from Northern Ireland to Northern California in 1985. Previously working as a salesman for the Powerscreen factory, this was a massive leap for the entrepreneur. Today, this jump has turned into a lasting legacy on his business’ team, community and region. This impact was emphasized at the 40th anniversary event, where the 100-strong Powerscreen of California tea