• Document No.

  • Audit Title

  • Client / Site

  • Conducted on

  • Prepared by

  • Location
  • Personnel

  • Project No:

  • Catchment:

  • Sub Catchment:

  • CIZ No.

1. Planning and Approvals

  • All Plans/Permits valid and onsite - ie. Power Company, Council or VicRoads MOA

  • Date

  • Checked By

2. Construction Documentation

  • SWMS relevant for specific site

  • Excavation Permit

  • Confined Space Entry Permit

  • Valid Q form

  • Date

  • Checked By

3. Construction Plant and Equipment

  • Daily pre-start checklists completed for all plant

  • CSE equipment satisfactory

  • Plugs (not damaged)

  • Hoses (no leaks)

  • Date

  • Checked By

4. Service Location and Protection

  • "Dial Before You Dig" information onsite<br>

  • All known existing services have been located and proved prior to work commencing

  • Minimum clearance maintained as per WSA 02-2002

  • Date

  • Checked By

5. Traffic Management

  • Set up as per site Traffic Management Plan

  • Date

  • Checked By

6. Inspection of Materials

  • Pipe and fittings conform to specifications and are in new condition

  • Pressure rating PN16/SDR11 PVC Pipe colour white

  • - min SN8 for pipe > 100mm pipe
    - min SN10 for 100mm pipe

  • Quarry certificates submitted for bedding and backfill materials

  • Date

  • Checked By

7. Establish Environmental Controls (as per TMP)

  • Excavations NOT impacting on any Structural Root Zones ( if so, will require the designated arborist onsite)

  • Silt fencing set up where required

  • Silt traps employed where required

  • Parra webbing erected around protected trees/vegetation

  • Date

  • Checked By

8. Pipe Alignment

  • As per Construction Drawings

  • Survey has marked out alignment prior to excavation

  • Date

  • Checked By

9. Excavation

  • Sufficient traffic management and signs around excavation

  • Adequate fall from heights protection installed where required

  • Appropriate trenching and shoring method used

  • Spoil stored correctly or removed from site

  • Date

  • Checked By

10. Laying Pipe

  • Minimum cover achieved as per WSA 02-2002 Table 4.8 (for gravity sewers)<br>

  • - 1200mm for unsealed road carriageways and arterial road carriageways

  • Tracer wire installed with pipe and to standard

  • Date

  • Checked By

13. Bedding of Pipe for Open Cut

  • Bottom of trench is free from sharp obstructions

  • Min 100mm compacted sand on bed of trench

  • Min 150mm compacted sand surrounding pipe

  • Marker Tape installed on top of bedding material (min 150mm above pipe)

  • Date

  • Checked By

14. Compaction and Backfill

  • Backfill to MRWA Specification No. 04-03.1 or to Road Authority's requirements

  • The Road Authority's requirements shall take precedence if they exceed the requirements of the MRWA Specification.

    MRWA Specification for roadways:
    - up to 1.5m deep - 20mm Class 2 Plant Mixed Wet Mix Crushed Rock
    - Over 1.5m - top 600mm to be 20mm Class 2 Plant Mixed Wet Mix Crushed Rock, 20mm Class 4 Crushed Rock for remainder.
    - Excavations in Footpaths - 20mm Class 4
    - Backfill placed in 200mm layers and compacted to required density 95% AS.

  • Compaction Test Report/s received

  • Date

  • Checked By

15. Acceptance Testing

  • Pressure testing for Pressure Sewer (hydrostatic)

  • Pressure Testing for gravity system (vacuum or low air pressure testing)

  • Deflection testing (only for gravity - to be done 14 days after compaction has been completed)

  • CCTV received and satisfactory

  • Date

  • Checked By

16. Reinstatement

  • Construction Impact Zones and affected work areas restored to condition prior to commencement of works

  • All surplus material removed from site

  • Date

  • Checked By


South East Water Representitive

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