Opal Water ManagementWater Infrastructure & Approvals

Planning a sewer main extension or water main relocation?

Opal Water Management holds full Sydney Water accreditation for Major and Minor Works coordination, managing design approval, constructor tendering and asset handover under ISO 9001, 14001 and 45001 management systems.

Direct Technical Enquiry

Enquire About Sydney Water Major & Minor Works

Pre-selected for: Sydney Water Major & Minor Works

Sydney Water Major & Minor Works

When a development requires extending existing water or sewer networks, adjusting pipeline alignment, or encasing assets under new structures, Sydney Water classifies the project as Major or Minor Works.

Minor Works typically include short sewer extensions, junction insertions, and minor encasements. Major Works involve larger trunk water main relocations, deep sewer sidings, complex pump stations, and extensive infrastructure amplification.

Opal Water Management acts as your accredited Water Service Coordinator, handling design approval, Sydney Water peer review, constructor tendering, field quality auditing, and final asset handover sign-off.

Accreditation & Statutory Clearance

Opal Water Management holds full Sydney Water accreditation for Major and Minor Works coordination, maintaining ISO 9001, ISO 14001, and ISO 45001 management systems.

Who This Service Is For

Civil contractors needing accredited WSC project management for water/sewer adjustments
Commercial developers constructing over major Sydney Water easements
Subdivision builders expanding regional or suburban sewer network capacity
Project managers requiring competitive constructor tendering and quality assurance

How Opal Water Management Assists

Preparation of detailed concept and final civil hydraulic construction drawings adhering to Sydney Water Technical Standards.

Management of Sydney Water formal design review, environmental assessment, and Developer Works Agreement execution.

Overseeing accredited constructor tendering, pre-construction meetings, and field site inspections.

Final asset inspection, CCTV verification logging, pegging certificate submission, and asset handover.

What to Provide With Your Enquiry

To assess your project promptly, please supply as much of the following as you have available. You can attach these documents directly in the enquiry form above.

Concept or detailed civil drawings showing the proposed main extension, relocation, or encasement
Site survey, existing Sydney Water asset locations, and any DBYD (Before You Dig Australia) asset plans
Developer Works Agreement reference or prior Sydney Water correspondence if issued
Project program, staging requirements, and any constructor preferences or constraints