Part refurbishment, part new build extension this SAPO4/ACDP3 containment project was a true engineering challenge. Featuring intricate detailing and detailed coordination (using the common BIM environment) across a multi-disciplinary team, Craddys were involved with client and stakeholder liaison, risk workshops, hazard studies (HAZOP), contained drainage, pressure testing, effluent treatment facilities, reinforced concrete detailing for contained structures and service integration.