Title Page

  • Document No.

  • Audit Title

  • Client / Site

  • Conducted on

  • Prepared by

  • Location
  • Personnel

PROCEDURAL CHECKLIST

  • In use

VERIFICATION CHECKLIST

  • In use

TEST RESULTS

  • Attached to checklist

NON-CONFORMANCE

  • Identified by Contractor

NON-CONFORMANCE REPORT

  • Submitted

SETTING OUT Clause R 32.8

  • Services identified and protected

  • Alignment levels and grade set out correctly

MATERIALS Clause R 32.4

  • Pipe type and class

  • Pipe diameter

  • Bedding complies with Australian Standards

  • Selected backfill complies with As 3725

  • Ordinary backfill complies with R 23

TRENCH EXCAVATION Clause R32.9

  • Water diversion adequate

  • Embankment at correct height

  • Location correct

  • Trench walls vertical.

  • Trench width > pipe diameter plus 600 mm

  • Shored depth > 1.5m

  • Sides benched depth > 1.5m

TRENCH BASE Clause R 32.10

  • Base compacted to 95% standard

  • Foundation acceptable CBR > 8

  • Rock encountered

  • Additional excavation approved.

  • Replaced material density tested 96%

INSTALLATION Clause R 32.13,14 & 15

  • Bedding layers 150mm

  • Bedding cohesive 95% RD

  • Bedding cohesion less 70% density index.

  • Vibrating equipment

  • Pipes laid correctly from downstream.

  • Pipes joined correctly

  • Select backfill layers 200mm depth

  • Select backfill 95% relative density.

  • Select backfill 70% density index.

  • Ordinary backfill layers 200mm depth

  • Ordinary backfill 95% density standard.

  • End wall construction - pipes grouted.

  • Finished line and level 10mm tolerance.

NON-CONFORMANCE

  • Identified by audit

  • Report requested.

  • Signature

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