What We’re Doing Select typeArticleEventMedia HitMultimediaReportResolutionSpeechStatement Apply July 27, 2020 Blog Service + Solidarity Spotlight: Apprentices Help Conserve Marine Life in the Chesapeake Bay Earlier this month, apprentices at the Plasterers and Cement Masons (OPCMIA) Local 592 training center in New Jersey finished constructing 60 reef balls that were loaded up and sent off to their new home in the Chesapeake Bay.