What this plan covers
Original editable baseline for ordinary building sanitary drainage pipework and connections. Covers approved route/connection, products, trench and bedding, actual invert/gradient checks, joints, pre-cover inspection, specified watertightness test, backfill protection and handover. Excludes sanitary fixture fit-off, liquid trade waste, vacuum systems, onsite wastewater, sewer authority mains and stormwater. Test criteria, falls, authorities and inspection notices must come from the applicable adopted code, approved design and project documents.
Define the package before tailoring it
- Drainage boundary
- Identify included sanitary lines, fixtures served, point of connection and exclusions.
- Approved design
- Provide current drainage drawings, inverts, gradients, connection approvals and design criteria.
- Jurisdiction
- Confirm state/territory adoption, authority inspections, notices and applicable testing requirements.
- Testing and concealment
- Confirm test method, timing, criteria, pre-cover/release points and records.
- Roles and records
- Confirm licensed roles, certificates, as-laid survey and closeout dossier.
Inspection sequence and project requirements
This starting plan contains 9 inspection steps. Proposed timing and roles need project confirmation; no contractual hold point or engineering acceptance value is assigned by this template. Actual results and signatures remain blank.
SAN-01 · Drainage design and property connection
- Work stage
- Drainage design and property connection
- Inspection / test
- Confirm system boundary, approved drainage arrangement and point of connection before setting out.
- Method
- Compare sanitary drainage plans, fixture schedule, invert/connection details and regulator/utility conditions; separate sanitary drainage from stormwater and excluded trade waste/on-site wastewater.
- Acceptance condition
- Only approved routes and connection details are used; capacity/design assumptions, authority conditions and unresolved interfaces are referred to the responsible designer. Project basis: [Fill: Sanitary drainage design and authority basis]; [Fill: Jurisdiction and authority basis].
- Timing / coverage
- Proposed: At the identified item / lot before the next step that would obscure or change the evidence; confirm project-defined coverage and timing.
- Responsible role
- Proposed: Assigned licensed plumbing contractor performs and records; reviewer / regulator acts only within documented authority. Project role basis: [Fill: Licensed roles, inspections and release authority]
- Control / release arrangement
- Proposed: Contractor check only. Confirm contractual or regulatory Hold/Witness points, notice, evidence and release authority from the project; none is assigned here. Project basis: [Fill: Licensed roles, inspections and release authority]
- Record
- Sanitary drainage design and connection register
- Project document reference
- Enter the governing document, revision and clause, drawing detail or register entry for this check.
- Project inputs to resolve
- Jurisdiction and authority basis; Sanitary drainage design and authority basis; Approved service drawings and revisions; Service boundaries and connection interfaces; Licensed roles, inspections and release authority
- Blank record fields
- System / catchment ID; Drawing and revision; Point of connection reference; Open design / approval item
SAN-02 · Incoming pipe, fitting and access component check
- Work stage
- Incoming pipe, fitting and access component check
- Inspection / test
- Check pipe, fittings, access points and chambers against approved schedule before installation.
- Method
- Match material, diameter/designation, joint type, access component and required product evidence to submittals; inspect delivery condition and identify segregated items.
- Acceptance condition
- Supplied components agree with approved material schedule and are fit for intended location/service; nonconforming items are held for disposition. Project basis: [Fill: Approved product and material schedule]; [Fill: Project specification and adopted standards].
- Timing / coverage
- Proposed: At the identified item / lot before the next step that would obscure or change the evidence; confirm project-defined coverage and timing.
- Responsible role
- Proposed: Assigned licensed plumbing contractor performs and records; reviewer / regulator acts only within documented authority. Project role basis: [Fill: Licensed roles, inspections and release authority]
- Control / release arrangement
- Proposed: Contractor check only. Confirm contractual or regulatory Hold/Witness points, notice, evidence and release authority from the project; none is assigned here. Project basis: [Fill: Licensed roles, inspections and release authority]
- Record
- Sanitary drainage product and delivery register
- Project document reference
- Enter the governing document, revision and clause, drawing detail or register entry for this check.
- Project inputs to resolve
- Approved product and material schedule; Project specification and adopted standards; Project records and handover requirements; Jurisdiction and authority basis; Licensed roles, inspections and release authority
- Blank record fields
- Pipe / fitting / access item; Location / service; Submittal / product evidence; Condition / disposition
SAN-03 · Trench, bedding and support before laying
- Work stage
- Trench, bedding and support before laying
- Inspection / test
- Check prepared trench/support conditions before pipe placement.
- Method
- Inspect formation, bedding/support and interface clearances against the approved details and civil/structural coordination; record unsuitable ground, water or clashes for disposition.
- Acceptance condition
- Foundation and support arrangement match project details and any geotechnical/civil constraints; unresolved conditions are corrected or formally dispositioned before laying. Project basis: [Fill: Approved service drawings and revisions]; [Fill: Project specification and adopted standards].
- Timing / coverage
- Proposed: At the identified item / lot before the next step that would obscure or change the evidence; confirm project-defined coverage and timing.
- Responsible role
- Proposed: Assigned licensed plumbing contractor performs and records; reviewer / regulator acts only within documented authority. Project role basis: [Fill: Licensed roles, inspections and release authority]
- Control / release arrangement
- Proposed: Contractor check only. Confirm contractual or regulatory Hold/Witness points, notice, evidence and release authority from the project; none is assigned here. Project basis: [Fill: Licensed roles, inspections and release authority]
- Record
- Sanitary drainage trench and bedding inspection
- Project document reference
- Enter the governing document, revision and clause, drawing detail or register entry for this check.
- Project inputs to resolve
- Approved service drawings and revisions; Project specification and adopted standards; Sanitary drainage design and authority basis; Concealment, cover and access requirements; Licensed roles, inspections and release authority
- Blank record fields
- Trench / chainage; Detail / revision; Observed formation and support; Ground / clash / instruction ref.
SAN-04 · Alignment, gradients, invert levels and fixture branches
- Work stage
- Alignment, gradients, invert levels and fixture branches
- Inspection / test
- Verify installed route, branch connections and levels against approved drainage design before cover.
- Method
- Survey/measure the installed section and compare actual line, invert levels, gradients, fixture branches and cleanout/access positions to approved drawings and project tolerances.
- Acceptance condition
- Measured installation matches approved route and specified levels/gradients and maintains required access; no generic falls or tolerance values are supplied. Project basis: [Fill: Sanitary drainage design and authority basis]; [Fill: Design levels, gradients and hydraulic criteria]; [Fill: Project specification and adopted standards].
- Timing / coverage
- Proposed: At the identified item / lot before the next step that would obscure or change the evidence; confirm project-defined coverage and timing.
- Responsible role
- Proposed: Assigned licensed plumbing contractor performs and records; reviewer / regulator acts only within documented authority. Project role basis: [Fill: Licensed roles, inspections and release authority]
- Control / release arrangement
- Proposed: Contractor check only. Confirm contractual or regulatory Hold/Witness points, notice, evidence and release authority from the project; none is assigned here. Project basis: [Fill: Licensed roles, inspections and release authority]
- Record
- Sanitary drainage set-out and as-laid survey
- Project document reference
- Enter the governing document, revision and clause, drawing detail or register entry for this check.
- Project inputs to resolve
- Sanitary drainage design and authority basis; Design levels, gradients and hydraulic criteria; Approved service drawings and revisions; Concealment, cover and access requirements; Licensed roles, inspections and release authority; Project specification and adopted standards
- Blank record fields
- Section / chainage; Actual invert levels; Actual gradient / method; Drawing / tolerance reference
SAN-05 · Joint assembly and contamination prevention
- Work stage
- Joint assembly and contamination prevention
- Inspection / test
- Inspect joints, penetrations and pipe ends while visible, and confirm separation from stormwater.
- Method
- Check joint preparation/assembly against product instructions; inspect seals, support, connection direction, capped ends and cross-connections; record repairs before cover.
- Acceptance condition
- Joint assembly and routing follow approved system details and product instructions; sanitary and stormwater systems remain correctly separated; defects are closed before concealment. Project basis: [Fill: Approved product and material schedule]; [Fill: Approved service drawings and revisions].
- Timing / coverage
- Proposed: At the identified item / lot before the next step that would obscure or change the evidence; confirm project-defined coverage and timing.
- Responsible role
- Proposed: Assigned licensed plumbing contractor performs and records; reviewer / regulator acts only within documented authority. Project role basis: [Fill: Licensed roles, inspections and release authority]
- Control / release arrangement
- Proposed: Contractor check only. Confirm contractual or regulatory Hold/Witness points, notice, evidence and release authority from the project; none is assigned here. Project basis: [Fill: Licensed roles, inspections and release authority]
- Record
- Sanitary drainage joint and separation check
- Project document reference
- Enter the governing document, revision and clause, drawing detail or register entry for this check.
- Project inputs to resolve
- Approved product and material schedule; Approved service drawings and revisions; Concealment, cover and access requirements; Licensed roles, inspections and release authority
- Blank record fields
- Section / location; Joint / product type; System identification / separation; Defect / repair reference
SAN-06 · Pre-cover inspection and test readiness
- Work stage
- Pre-cover inspection and test readiness
- Inspection / test
- Confirm the full test section is visible, accessible, isolated as needed and ready for the approved test before backfill or enclosure.
- Method
- Walk line and inspection points; reconcile section boundaries and test procedure; check connections/plugs and authority notice or inspection requirement before concealment.
- Acceptance condition
- Specified pre-cover inspections and notices are complete; each test section is identifiable and testable before concealment. WA bulletin is jurisdiction-specific and does not create a universal authority requirement. Project basis: [Fill: Concealment, cover and access requirements]; [Fill: Project-specific test method and acceptance]; [Fill: Licensed roles, inspections and release authority].
- Timing / coverage
- Proposed: At the identified item / lot before the next step that would obscure or change the evidence; confirm project-defined coverage and timing.
- Responsible role
- Proposed: Assigned licensed plumbing contractor performs and records; reviewer / regulator acts only within documented authority. Project role basis: [Fill: Licensed roles, inspections and release authority]
- Control / release arrangement
- Proposed: Contractor check only. Confirm contractual or regulatory Hold/Witness points, notice, evidence and release authority from the project; none is assigned here. Project basis: [Fill: Licensed roles, inspections and release authority]
- Record
- Sanitary drainage pre-cover and test readiness record
- Project document reference
- Enter the governing document, revision and clause, drawing detail or register entry for this check.
- Project inputs to resolve
- Concealment, cover and access requirements; Project-specific test method and acceptance; Licensed roles, inspections and release authority; Jurisdiction and authority basis
- Blank record fields
- Test section / location; Inspection / notice reference; Approved test procedure; Release / open item reference
SAN-07 · Specified watertightness test and retest
- Work stage
- Specified watertightness test and retest
- Inspection / test
- Record the approved test on each identified section and track any repair/retest.
- Method
- Perform only the approved project/jurisdiction method; log test medium/setup, section, instrument if applicable, actual result and defects; repair and retest to the cited procedure.
- Acceptance condition
- Test result meets project-adopted criteria and regulatory pathway; a failed section remains open until accepted retest evidence exists. No WA test parameters are applied outside confirmed WA scope. Project basis: [Fill: Project-specific test method and acceptance]; [Fill: Jurisdiction and authority basis].
- Timing / coverage
- Proposed: At the identified item / lot before the next step that would obscure or change the evidence; confirm project-defined coverage and timing.
- Responsible role
- Proposed: Assigned licensed plumbing contractor performs and records; reviewer / regulator acts only within documented authority. Project role basis: [Fill: Licensed roles, inspections and release authority]
- Control / release arrangement
- Proposed: Contractor check only. Confirm contractual or regulatory Hold/Witness points, notice, evidence and release authority from the project; none is assigned here. Project basis: [Fill: Licensed roles, inspections and release authority]
- Record
- Sanitary drainage test and retest certificate
- Project document reference
- Enter the governing document, revision and clause, drawing detail or register entry for this check.
- Project inputs to resolve
- Project-specific test method and acceptance; Jurisdiction and authority basis; Project records and handover requirements; Licensed roles, inspections and release authority
- Blank record fields
- Test section; Method / source; Actual result / observation; Repair and retest reference
SAN-08 · Backfill, reinstatement and access protection
- Work stage
- Backfill, reinstatement and access protection
- Inspection / test
- Verify approved pipe protection, surround/backfill sequence and access points before the work is covered.
- Method
- Observe installation against civil details; verify required surround, marker/identification, compaction interface and access lids/cleanouts remain located and protected; record levels/areas.
- Acceptance condition
- Work complies with approved construction details and access remains usable; backfill or compaction does not proceed over unresolved inspection/test items. Project basis: [Fill: Concealment, cover and access requirements]; [Fill: Approved service drawings and revisions].
- Timing / coverage
- Proposed: At the identified item / lot before the next step that would obscure or change the evidence; confirm project-defined coverage and timing.
- Responsible role
- Proposed: Assigned licensed plumbing contractor performs and records; reviewer / regulator acts only within documented authority. Project role basis: [Fill: Licensed roles, inspections and release authority]
- Control / release arrangement
- Proposed: Contractor check only. Confirm contractual or regulatory Hold/Witness points, notice, evidence and release authority from the project; none is assigned here. Project basis: [Fill: Licensed roles, inspections and release authority]
- Record
- Sanitary drainage backfill release and location record
- Project document reference
- Enter the governing document, revision and clause, drawing detail or register entry for this check.
- Project inputs to resolve
- Concealment, cover and access requirements; Approved service drawings and revisions; Licensed roles, inspections and release authority; Project records and handover requirements
- Blank record fields
- Section / chainage; Surround / backfill reference; Access point / lid check; Inspection / release record
SAN-09 · Connection, flow checks and handover
- Work stage
- Connection, flow checks and handover
- Inspection / test
- Verify approved downstream connection, access and required completion notifications and records.
- Method
- Reconcile tie-in approval, inspection/test certificates, as-laid survey, defects, regulator notice/certificate and dossier index; perform only project-specified operational/flow checks.
- Acceptance condition
- Connection and required records match approved documents and local requirements; unresolved authority conditions or defects remain explicit at handover. Project basis: [Fill: Sanitary drainage design and authority basis]; [Fill: Licensed roles, inspections and release authority]; [Fill: Project records and handover requirements].
- Timing / coverage
- Proposed: At the identified item / lot before the next step that would obscure or change the evidence; confirm project-defined coverage and timing.
- Responsible role
- Proposed: Assigned licensed plumbing contractor performs and records; reviewer / regulator acts only within documented authority. Project role basis: [Fill: Licensed roles, inspections and release authority]
- Control / release arrangement
- Proposed: Contractor check only. Confirm contractual or regulatory Hold/Witness points, notice, evidence and release authority from the project; none is assigned here. Project basis: [Fill: Licensed roles, inspections and release authority]
- Record
- Sanitary drainage completion and handover dossier
- Project document reference
- Enter the governing document, revision and clause, drawing detail or register entry for this check.
- Project inputs to resolve
- Sanitary drainage design and authority basis; Jurisdiction and authority basis; Licensed roles, inspections and release authority; Project records and handover requirements
- Blank record fields
- Connection / approval reference; Notice / certificate; As-laid drawing / survey; Open item / owner
Source notes
- Australian Building Codes Board, NCC 2022 Volume Three — Plumbing Code of Australia
Official national framework and source locator. State adoption, variations, application and project compliance pathway must be confirmed; NCC edition is not assumed to be the contract edition.
Accessed 2026-10-07; Volume Three index: Section B Water services, Section C Sanitary plumbing and drainage systems, state/territory schedules and Schedule 2 referenced documents.
- Australian Building Codes Board, NCC 2022 Volume Three — Schedule 2 Referenced documents
Confirms NCC 2022 referenced-document editions and provision cross-references only. Verify the edition actually adopted by the project jurisdiction and contract; full standards text was not used.
Accessed 2026-10-07; entries AS/NZS 3500 Part 1:2021 (B1D3 etc.), Part 2:2021 (C1/C2 provisions) and Part 3:2021 (F1D3, H2D2/H2D6 and 7.4.3).
- Australian Building Codes Board, NCC 2022 Volume Three — Part C1 Sanitary plumbing systems
Official scope and outcome framework for sanitary plumbing; no generic project acceptance values or inspection frequencies inferred.
Accessed 2026-10-07; introduction and Performance Requirements C1P1 disposal, C1P2 access, C1P4 uncontrolled discharge, C1P6 contamination, C1P7 damage.
- Australian Building Codes Board, NCC 2022 Volume Three — Part C2 Sanitary drainage systems
Official sanitary drainage scope and testing/design pathway locator. Check jurisdiction adoption and approved project design; no universal values copied into the baseline.
Accessed 2026-10-07; C2 provisions for sanitary drainage performance and pressure testing; installation design remains tied to applicable code pathway and referenced documents.
- Government of Western Australia, Industry Bulletin 133 — Sanitary plumbing and sanitary drainage installation testing
Specific WA example supporting test-before-concealment, defect repair/retest and authority notification as topics. Do not transfer WA legal methods, numeric criteria or notification duties to other jurisdictions.
Accessed 2026-10-07; official bulletin page and linked PDF inspected. Bulletin describes WA testing and notification requirements, test before backfill and repair/retest sequence; PDF pp. 1–2.
Connect the plan to field evidence
- Water services pressure test record
- Sanitary drainage pre-cover inspection
- Stormwater drainage inspection
How to write a plumbing and drainage ITP · Compare the broader plumbing & drainage scope
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