2304 SUB SOIL DRAINS

• Document No.

• Audit Title

• Client / Site

• Conducted on

  Date

• Prepared by

• Location
  Address

• Personnel

• In use

  Yes

  No

  N/A

VERIFICATION CHECKLIST

• In use

  Yes

  No

  N/A

Test results

• Attached to checklist

  Yes

  No

  N/A

NON-CONFORMANCE

• Identified by Contractor

  Yes

  No

  N/A

NON-CONFORMANCE REPORT

• Submitted

  Yes

  No

  N/A

SERVICES

• Identified and protected

  Yes

  No

  N/A

MATERIALS Clause R 33.2

• Pipe type and class

  Yes

  No

  N/A

• Pipe dia 100mm

  Yes

  No

  N/A

• Filter material maximum size 19mm

  Yes

  No

  N/A

• Geotextile class C

  Yes

  No

  N/A

• Flush point pipe dia > 50mm

  Yes

  No

  N/A

• Drain markers yellow triangular plates

  Yes

  No

  N/A

TRENCH EXCAVATION Clause R 33.3.1

• Location correct

  Yes

  No

  N/A

• Width 300mm

  Yes

  No

  N/A

• Minimum depth 500mm below formation

  Yes

  No

  N/A

• Minimum grade 1%

  Yes

  No

  N/A

• Rock encountered

  Yes

  No

  N/A

• Rock volume measured

  Yes

  No

  N/A

INSTALLATION Clause R 33.3

• Pipe on 50mm bed of filter material

  Yes

  No

  N/A

• Pipe deviation <40mm line and grade

  Yes

  No

  N/A

• Top of pipe 100mm below sub base

  Yes

  No

  N/A

• Geotextile lap 250mm on top

  Yes

  No

  N/A

• Geotextile lap 500mm at joins

  Yes

  No

  N/A

• Compaction method filter material as per CMP

  Yes

  No

  N/A

• Connection to pits etc.

  Yes

  No

  N/A

• End wall construction

  Yes

  No

  N/A

• Pipe surround grouted to endwall

  Yes

  No

  N/A

• Dead end capped

  Yes

  No

  N/A

• Flush points at 120m maximum intervals

  Yes

  No

  N/A

• Flush point demonstration of compliance

  Yes

  No

  N/A

• Drainage markers at all locations

  Yes

  No

  N/A

• Lemon yellow markers in Rock cuttings

  Yes

  No

  N/A

NON-CONFORMANCE

• Identified in audit

  Yes

  No

  N/A

• Report requested.

  Yes

  No

  N/A

• Signature

  Sign