Work as Executed (Storm water - OSD)

Work as Executed (WAE) surveys for Stormwater and On-Site Detention (OSD) systems are a critical regulatory requirement for new developments across Sydney. These detailed surveys verify that the stormwater management systems have been built in strict accordance with approved engineering specifications and local council mandates. By providing precise documentation of volumes, levels, and flow controls, we help developers secure their occupation certificates and ensure effective long-term flood mitigation for the property.